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Publication numberUS3574342 A
Publication typeGrant
Publication dateApr 13, 1971
Filing dateMay 29, 1969
Priority dateJun 1, 1968
Also published asDE1756530A1, DE1756530C3
Publication numberUS 3574342 A, US 3574342A, US-A-3574342, US3574342 A, US3574342A
InventorsBerns Harald
Original AssigneeHerbert Sehlbach Fa
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for connecting, tightening, securing and releasing of belts
US 3574342 A
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Description  (OCR text may contain errors)

United States Patent [72] Inventor Harald Berns Wuppertal-Elberfeld, Germany [21 1 Appl No. 828,880 [22] Filed May 29, 1969 [45] Patented Apr. 13, 1971 [73} Assignee Firma Herbert Sehlbach Schmalwebereien, Wuppertal-Barmen, Germany [32] Priority June 1, 1968 [33] Germany [31] P 17 56 530.9

[54] APPARATUS FOR CONNECTING, TIGIITENING,

SECURING AND RELEASING 0F BELTS 7 Claims, 4 Drawing Figs.

[52] U.S. Cl 254/79, 24/68 [51] Int. Cl B66f 3/00 [50] Field of Search 254/79; 24/68 (D,E,CD), 69 (CT,ST), 74, 273

[56] References Cited UNITED STATES PATENTS 3,014,256 12/1961 Derrickson 24/74X 3,050,799 8/1962 Davis 254/79X 3,128,516 4/1964 l-Ialvarson 254/79X Primary ExaminerRobert C. Riordon Assistant ExaminerDavid R. Melton Attorney-Ernest G. Montague ABSTRACT: An apparatus for connecting, tightening, securing and releasing of belts, which comprises a tension lock and a swingable tension lever. A locking pin and a deviation pin are disposed spaced apart and behind each other on the tension lever for locking and deviating of a belt, and for winding the tension side of the belt about the deviation pin with formation of a substantially U-shaped single belt loop in one layer and for laying over itself partly surrounding the locking pin in two layers for support on the locking pin with formation of a double belt loop, while the securing side of the belt is secured to the tension lock, the tension lock is structurally separated from the tension lever and disposed along parallel axes and set off as to the height as well as disposed behind each other. Side cheek members receive at least one of the locking pins and one of the deviation pins. At least one of the pins is formed as a rotatable roller, in order to wind the tension side of the belt in a single belt loop, about the deviation bolt, as well as the superposed belt sections of the single loop in a double belt loop about the locking bolt with formation of a belt self-locking securing system, the belt part surrounding the load as well as the free tension end of the belt disposed substantially parallel to a plane extending through the bolt axes of the tension lock, a counter-bearing is provided for a hooklike support of a support hook pivotally connected to the tension lever. The support hook is releasably engageable with the free tension and of the belt, and the counter-bearing includes a belt part wound about the load.

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' SHEETEAUF 3 INVENIOR 3/ W1 'M PATENTEQ AFR 1 3 I97! sum 3 or 3 w T N E V W APPARATUS FOR CONNECTING, TIGHTENING, SECURING AND RELEASING F BELTS The present invention relates to an apparatus for connecting, tightening, securing, and releasing of belts, in general, and to such apparatus, which is equipped with a tension lock or coupling nut, as well as a swingable tension lever, on which a locking pin and a diversion pin are provided spaced apart from each other and one behind the other for locking and diversion of the belt, whereby the tension side of the belt is guided about the diversion pin in one layer with formation of a substantially U-shaped disposed single belt loop and being laid upon itself by formation of a double belt loop and, partly surrounding in two layers the locking pin, is supported on the latter, while the securing side of the belt is secured on the tension lock.

An apparatus of the type described above has been known, for instance, in the German Gebrauchsmuster 1,945,183. In this apparatus, the tension lock and the tension lever form a joint connected structural unit. The tension lever is thereby constructed such, that the tension side of the belt is at first wound around the deviation pin by formation of a single belt loop, while the other belt end, namely, the belt securing side, is secured to a bow engaging pivotally the tension lever. After the threading in of the tension end of the belt on the tension lever, it is possible to pull at the free belt end, so that by pull at this free end the belt portion engaging the load, obtains a certain pretension corresponding to the manual pull force.

The actual tension process is brought about in this apparatus such, that the manual lever is turned from its starting or locking opening position in a vertical plane for about 180, so that the belt sections disposed on top of each other with formation of a single belt loop during threading in now partly surround one sided with formation of a double belt loop a locking pin prearranged with distance from the deviation pin.

In the tension position of the tension lever, which is now obtained only, the tension end of the belt is disposed with a U- shaped single belt loop about the deviation pin, while the locking pin is partly surrounded by a two-layer belt double loop. In this state, a belt self locking retaining system is formed, in which the friction is so great within the belt parts engaging at each other and over each other, respectively, particularly about the part surrounding range of the locking pin, that a sliding of the belt parts opposite to the tension direction is no more possible. The tension position of the tension lever itself is secured by hooking in the latter on the belt part which is engaging the load.

For releasing of this apparatus, the tension lever end is hooked out again from the belt, that means it is unlocked, and turned over opposite to the tension direction again about 180, so that by pulling on the part of the belt which engages the load, a release is made possible.

With such apparatus, in which the tension lock or nut and the tension lever is combined to a joint structural unit, the set requirements can be met through, as it is likewise possible to perform a connection of the tension side of the belt with the apparatus, as well as a tensioning retaining and securing in the tension position, as well as finally also a release of the belt.

This apparatus has, however, also a plurality of drawbacks. Since it is necessarily required in the application technique of belts, to leave the locking produced on the belt during the transportation of the load on the belt, the tension lock and the tension lever, which form here a structural unit must remain forcibly on the belt, whereby the tension apparatus become voluminous.

However, a second drawback, which weighs, however, still heavier, is seen in the fact, that with such apparatus, always and in each case only a limited tension path can be brought about, which can bring appreciable disadvantages under circumstances, in view of the load, because with such apparatus, it is not possible to dose the holding tension individually onto the load.

A third drawback is also seen in the fact, that an aftertensioning of the belts is only possible, so far as the charge has settled by the first tensioning process. ln addition, the apparatus must be completely returned again into its free releasing position. From the tensioning position obtained with this apparatus, no direct adjustment can be obtained without prior release.

Finally, as a fourth drawback, this apparatus can, under no circumstances, be considered absolutely safe against accidents, because a return moving force, opposite to the direction of the tension, is charged on the tension lever in its tensioned position after a hooking connection with the belt part engaging the charge, which return moving force in case of a nonorderly hooking-in can lead to the point, that the obtained locking opens automatically. Also, during release, that means during the transformation of the tension lever from the tensioned into the released position, with recognition of the return moving effect, must be particularly carefully handled, if accidents should be avoided.

It is one object of the present invention to provide an apparatus for connecting, tightening, securing and releasing of belts, which amounts to an improvement of an apparatus disclosed in the German Gebrauchsmuster l,945,l83 in structure, as well as in function.

It is another object of the present invention to provide an apparatus for connecting, tightening, securing and releasing of belts, wherein the tension lock separated structurally from the tension lever has at least one locking bolt and a deviation bolt received in side cheeks disposed in parallel axes and preferably set off as to the height relative to each other, and of which at least one of the locking bolts and of the deviation bolt is formed as a rotatable roller, about which roller the tension side of the belt is wound around in the same manner as with the tension lever, in a single belt loop about the deviation bolt, as well as the superposed belt sections of the single loop in a double belt loop about the locking bolt by formation of a belt self-locking retaining system, such that the belt part surrounding the load in the same manner as the free tension end of the belt from the start of the tension continuously run substantially parallel to a plane extending through the bolt axes of the tension lock, and that thereby additionally the belt part surrounding the load has a counter bearing for support in form of hooks of a supporting hook pivoted to a tension lever and attachable releasably to the free tension end of the belt.

By the practical realization of the present invention, the latter can claim the advantage of the structural separation between the tension lock and the tension lever, so that also here during transportation of goods, merely the tension lock remains on the belt, while the tension lever itself is removable. By this arrangement, the tension device can be produced much more economical and less voluminous, as this was the case until now. Furthermore, the short building length of the tension lock is of great advantage in the production.

If, in spite of the fact that it is basically known to separate structurally from each other the tension lock and the tension lever, as it is the case in the practical realization of the apparatus in accordance with US. Pat. No. 3,206,816, particular emphasis belongs to the subject matter of the present invention in relation to this known apparatus due to its appreciably deviating structure.

A further functional improvement, which is caused by the structure of the new lock, is seen also by the fact, that during threading-in of the tension end of the belt into the tension lock, care is taken that the belt guide and the deviation about the deviation and locking bolts provided in the lock takes place such, that already from the start of the threading-in a belt self-locking retaining system is obtained in the tension lock, which is brought about only upon turning over the tension lever into the tension position in the apparatus of said German Gebrauchsmuster.

The tension side of the belt inserted in a belt self-locking retaining system into the tension lock makes possible accordingly a pulling at the free end of the belt, while upon pulling on the belt pan, which engages the load, the friction between the belts is so great, that a belt locking occurs, thus a movement of the belt in this direction is not possible.

If one thus applies the new tension lock on a belt, then from the tensioning start a holding is obtained immediately in so far as only by pulling at the free end of the tension side of the belt, a movement of the belt is possible, on the other hand, the force effective from the load on the belt part engaging the load by the load cannot cause an automatic reopening of the lock, because by the guide of the belt in the tensioning lock by fonnation of a belt self-locking retaining system, the force originating from this belt in the range of the locking bolt does not permit any displacing of the belt by the increased friction.

Since upon realization of the proposed belt self-locking retaining system in the tension lock it is now possible, to obtain at the remaining free end of the tension side of the belt by exercise of a pulling force, a tension of the belt part engaging the load, it is also made possible to permit the engagement at this end of the tension lever structurally separated from the tension lock, in accordance with the present invention.

In accordance with the present invention, this is performed suitably such that a tension lever is used formed as insert tension lever, which tension lever, by example, can be hooked in, for instance, with a supporting hook open at one side and engaging pivotally the tension lever in a counter-bearing hook formed as a belt loop, for instance, which counter-bearing, in accordance with the present invention, is disposed on the belt part engaging the load, while the free end of the tension side of the belt is wound again around the deviation and locking pin provided on the tension lever in accordance with a belt selflocking and retaining system. In this manner, by pulling on the tension part of the belt, by means of reciprocating swinging movements of the tension lever which supports itself with its locking pin over a belt double loop on the belt and thereby causes an increased friction, which permits a pulling after of the tension end, tension slowly the belt. The efiect is thereby very high, while'during the tension procedure simultaneously the belt portion running into the lock is discharged.

In addition to the practical formation of the one hook counter-bearing as a belt loop, it is however, also easily possible within the framework of the present invention, to render adjustable or displaceable, respectively, the hooking-in of the tension lever. Thereby the belt could, for instance, be fonned as a pocket belt. Also the one hook-in counter-bearing is a buckle or the like adjustable on the belt part winding around the load.

Furthermore, in this connection, it would also be possible to design the belt part surrounding the load over a particular clamping device as a self-locking securable clamping lever.

The main advantage of this adjustable attaching possibility of the tension lever of the belt part resides in the fact, that one obtains practically unlimited tension paths, which is not the case with the first described apparatus.

Also by this tensioning system, it is possible, to dose the increase of the tension effective on the load without steps and very sensitively, because with the realization of the belt selflocking retaining system in the tension lock obtained from the tension start, the tensioning process, which is performed now with the tension lever separated structurally from the tension lock, can be interrupted at any selected point.

A previously known fast return effect does not occur by the structural deparation of the tension lock and the tension lever, whereby the accident and damage danger connected thereby is avoided.

Last but not least, with the new system, it is also possible with difficulty to tension afterwards the belt during the transportation of the load by attaching the tension lever simply again at the free tension end of the belt. By tightening of the free tension end, the tension of the belt part engaging the load is again increased, without, as it is the case in the previously known device, to require a complete release of the lock. Also, in this tensioning device, a securing of the locking position is omitted, since the pulled in belt is secured in this system by self clamping by the belt self-locking retaining system obtained from the tension start.

During the practical realization of the apparatus proposed in accordance with the present invention, thus, the tension lever does not have necessarily to remain in the tension lock, rather can remain at the point at which the charge is released for the transportation by unhooking simply the same from the belt-sided hook-on counter bearing. At the receiving point of the load, a release of the lock can take place such, that the belt holding bolt of the tension lock, formed as rotatable roller, and therein lies a very decisive advantage of the present invention, for instance, rotates the locking bolt in a direction opposite to the direction of the tension, whereby a releasing of the belt is made possible. The tension lever is not required for releasing the connection.

In this combination, it is to be understood to be also possible, to form the deviation as well as the locking bolt of the tension lock as turn-able rollers, so that one could turn during re-releasing both rollers. It is even possible to apply this rotatable roller and these rotatable rollers, respectively, also for the tension process, if one wants to omit a tension lever in accordance with the present invention.

The practical configuration of the turnably mounted roller and rollers, respectively, in the tension lock can be realized such, that it has a handle operable for rotation from the outside. Thus, one can perform from the outside manually or with an additional tool a rotary movement of the roller and rollers, respectively easily and without difficulties.

The tension lockitself can be formed with laterally closed or also with one-sided open cheeks, in order to simplify the threading-in of the tension side or under circumstances also the securing side of the belt.

For the formation of the tension lever, it is suitable if the pivoted lever part of the supporting hook on the side pointing towards the gripping part of the tension lever has an abutment for limiting the swinging stroke of the tension lever. In this embodiment, it is brought about, that from the start of the setting in of the tension lever to the belt a certain surrounding angle of the couple belt loop about the locking pin is obtained, so that upon swinging of the lever in the direction of the tension immediately a pulling force is exerted on the tension side of the belt, and thus a sliding-through is avoided.

Finally, within the framework of the present invention, it is also of advantage and amounts to a further development of the present invention, if the tension lock for setting also the securing side of the belt, has a double bolt unit comprising a deviation bolt and a locking bolt, of which, under circumstances, one is designed as a rotatable roller, about which double bolt unit the belt start, exactly as the tension side of the belt, by formation is windable about the locking bolt, by formation of a single belt loop about the deviation bolt and a belt double loop about the locking bolt.

In accordance with this proposal of the present invention, the tension lock is formed also on the securing side of the belt in the same manner as the tension side of the belt in the same manner as the tension side of the tension lock, then one can also obtain on the securing side a belt self-locking retaining system, whereby a sewing or other securing of the belt on the securing side on the tension lock is superfluous. The belt securing side and the tension side of the belt can be coupled in a simple insert and pull-in process with the tension lock, so that then both inserted belt parts can be pretensioned by manual force, whereby both belt ends are secured due to the present self-retardation against return sliding in the system.

Also the length adjustment of the belt can take place now in this embodiment the same as the tensioning of the belt on both sides. Furthermore, also the exchangeability of worn belt parts is simplified.

Summarizing, it has been brought about by the present invention that in a tension lock for belts a belt self-locking retaining system is formed from the start of the tension in the tension lock, which system has been obtained in the firstmentioned apparatus only by turning over of the tension lever in the tension position joint structurally with the tension lock. Advantageously, the system should find its realization at both ends of the tension lock, whereby under circumstances also one of the two bolts can be immovably secured on the part of the tension lock holding the belt securing side. By the possibility of the tensioning of the belt by means of the tension lever, separated structurally from the tension lock, upon performance of a practically unlimited tension path and the suitable manner of rereleasing by the rotary roller in the tension lock, it is possible to adjust the belt tension individually to the load, but to release the belt easily again. Also an adjustment in each obtained tension position is likewise possible, asa rereleasing of the tension lock without the manual lever alone over the rotatable roller and rollers, respectively in the tension lock. The new tension lock is structurally no more so voluminous, is of a simpler structure and cannot only be produced more economically, rather also suitably and easier be handled, wherein decisive advantages of the present invention are seen.

With these and other objects in view which will become apparent in the following detailed description, the present invention will be clearly understood in connection with the accompanying drawings, in which:

FIG. 1 is a perspective front view of the tension lock designed in accordance with the present invention with a belt sewn in on the securing side;

FIG. 2 is a perspective front view corresponding with that shown in FIG. 1 yet disclosing a second embodiment with an adjustable securing side;

FIG. 3 is a perspective front view with a tension lock, as shown in FIG. 2, here, however, with a broken-off side cheek, with added tension lever as well as with a one-hook counter bearing formed as sewn belt loop; and

FIG. 4 is a perspective front elevation of the tension lever which penetrates into an adjustable one-hook counter bearing.

Referring now to the drawings, in the shown tension apparatus for bands, the apparatus comprises a tension lock A, a tension lever B and a one-hook counter bearing C.

The tension lock A comprises in the embodiment disclosed in FIG. 1 two side cheeks between which bolts 11 and 12 (FIG. 3) are disposed, which are arranged in parallel axles and set off relative to each other as to height and one behind the other. These bolts 11 and 12 constitute thereby the tension part of the tension lock, while the bolts 11a and 12a serve the purpose of receiving adjustably the securing side of the belt. Contrary thereto, a rigid securing of the belt securing side in accordance with FIG. 1 is possible.

During the present embodiment, in accordance with the present invention, the bolt of the tension lock is formed as a rotatably mounted roller, which is formed as a roller equipped on the outside with a knurled head 13, as well as an axial insert opening 14 (FIG. 2), whereby a rotary tool can be provided at the knurled head 13 to be rotated manually or can be received in the axial recess 14.

The belt 15 is inserted on the tension side 11 and 12 of the tension lock such, that the deviation bolt 11 is surrounded by the belt 15 in a U-shaped set single belt loop 15a. Behind the deviation bolt 11 the belt parts fonning the loop 15a, with formation of a belt double loop 15b, are superposed relative to each other and guided jointly about the locking bolt 12. In the belt sections disposed opposite each other, the belt part 15 is the one which engages the load, while the belt part 15c constitutes the tension side of the belt.

The-securing side of the belt is wound around and secured to the bolts 11a and 12a in the same manner as at the tension end, whereby in connection with the present embodiment on both tension lock ends a belt self-clamping retaining system of the belt is achieved. In this system, it is possible to pull by manual force, at the belt end 15c in order to obtain a pretension. A sliding by pulling on the belt part 15 in the indicated arrow direction, would not be possible by the obtained self-locking obtained in the lock, so that in this direction the belt is not movable.

In order to be able to tension, starting from the threaded-in position, the belt 15, one avails itself of a tension lever B (FIGS. 3 and 4). This tension lever B has a gripping part 16 on which spaced apart on top of each other a locking pin 17 as well as a deviation pin 18 are provided. A one-sided open supporting hook I9 is pivoted to the gripping part 16 and can be hooked into a loop 20 of the belt (FIG. 3) or of a hooking counter bearing designed in any other manner of the belt part 15 engaging the load.

- The tension end 15c of the belt is now wound around exactly as in the tension lock A about the deviation pin 18 in a single belt loop 15a and wound around the locking pin 17 in a belt double loop 15b. On the supporting hook 19 is disposed an abutment shoulder 21 on which the grip part 16 can abut in order to arrive at a starting position ready for service.

Starting from the disclosure in FIG. 3, the grip portion 16 of the tension lever B can be moved in the indicated arrow direction, whereby due to the increased self-locking within the range of the double belt loop 15b set within the range about the locking pin 17 an after-pull of the tension end in the indicated arrow direction is made possible upon performing the returning stroke of the grip part 16, the free tension end 150 can be pulled after for the fed tension length, whereby due to renewed reswinging in the indicated arrow direction, the tension end 15c can be aftertensioned without steps, so that the tension path is practically unlimited within the range between the tension lock and the insert position of the lever B. Also the tensioning in any position can be interrupted or for the purpose of aftertensioning restarted again. Forces which work in the indicated arrow direction onto the belt 15 are caught by the self-locking and prevent a displacement of the belt.

In FIG. 3, the one-hook counter-bearing C is formed as sewn-on loop. This loop can be formed in addition to sewing, also by using a suitable buckle 22, 23 and 24, which has the advantage that the one-hook counter-bearing in its position to the closing can be newly determined prior to each tensioning process and thereby an individual setting of the tension path to the prevailing load safety problem is made possible. Thus, the tension path is actually unlimited in the above-described apparatus. Beyond that, the buckle itself, that means without formation of a loose belt loop, can be formed as a one-hook counter-bearing in accordance with FIG. 4.

It is to be understood that the shown and described embodiment is merely an example for the practical realization of the present invention. One could rather design the tension lock with a rotatably release roller and also the tension lever structurally separated therefrom also designed in deviating manner, as long as thereby the advantages obtained by the present invention are maintained.

While I have disclosed several embodiments of the present invention, it is to be understood that these embodiments are given by example only and not in a limiting sense.

Iclaim:

I. An apparatus for connecting, tightening, securing and releasing of belts, comprising:

a tension lock and a swingable tension lever;

a locking pin and a deviation pin disposed spaced apart and behind each other on said tension lever for locking and deviating of a belt, and for winding the tension side of said belt about said deviation pin with formation of a substantially U-shaped single belt loop in one layer and for laying over itself partly surrounding said locking pin in two layers for support on said locking pin with formation of a double belt loop, while the securing side of said belt is secured to said tension lock;

said tension lock being structurally separated from said tension lever and disposed along parallel axes and set off as to the height as well as disposed behind each other;

side cheek members receiving at least one of said locking pins and one of said deviation pins;

at least one of said pins being formed as a rotatable roller, in order to wind the tension side of said belt in a single belt loop, about said deviation bolt, as well as the superposed belt sections of the single loop in a double belt loop about said locking bolt with formation of a belt self-locking securing system, the belt part surrounding said load as well as the free tension end of said belt disposed substantially parallel to a plane extending through the bolt axes of said tension lock;

a counter-bearing for a hooklike support of a support hook pivotally connected to said tension lever;

said support hook being releasably engageable with said free tension and of said belt; and

said counter-bearing including a belt part wound about said load.

2. The apparatus, as set forth in claim 1, wherein:

said tension lever has a grip portion and comprises an inserttension lever equipped with said support hook;

the latter being open at one side and pivotally connected with the grip part of said tension lever; and

said insert-tension lever can be hooked in with said support hook into a loop or in a one-hook counter bearing on said belt part wound about said load.

3. The apparatus, as set forth in claim 2, wherein said hook kit counter-bearing comprises a sewn loop, a loop to be formed by a buckle or forms itself a buckle.

4. The apparatus, as set forth in claim 2, wherein said tension lever comprises a clamping device including a clamping lever securable to said belt part wound about said load.

5. The apparatus, as set forth in claim 1, wherein:

said support hook has a pivot lever part; and

the latter includes an abutment member on the side pointing to the grip part of said tension lever for limiting the swinging stroke of said tension lever.

6. The apparatus, as set forth in claim 1, wherein said rotatable roller in said tension lock has an operating handle for operation from the outside.

7. The apparatus, as set forth in claim 1, wherein:

said tension lock comprises a double bolt unit including a deviation bolt and a locking bolt one of said bolts being formed as a rotatable roller; and

said belt securing side of said belt being wound about an additional deviation belt with formation of a single belt loop and about an additional locking bolt with formation of a double belt loop.

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4047710 *Dec 7, 1976Sep 13, 1977John WilsonFraming form and clamp
US4289352 *Feb 22, 1979Sep 15, 1981Kangol Magnet LimitedShoulder height adjuster for seat belt systems
US4340329 *Oct 21, 1980Jul 20, 1982Ericsson Sven OLashing device
US4353150 *Nov 3, 1980Oct 12, 1982Docken Richard ERope stretching and tightening device
US4823443 *Jun 18, 1987Apr 25, 1989Veldon WatersStrap tie down device and method for its use
US4918790 *May 12, 1989Apr 24, 1990Soniform, Inc.Cam buckle
US5653654 *Jul 17, 1995Aug 5, 1997Davis; George S.Belt installation and removal tool
US5957432 *Oct 23, 1997Sep 28, 1999Ostrobrod; MeyerSafety apparatus for horizontal lifeline
US6047451 *May 20, 1999Apr 11, 2000Constance F. BergerBelt shortening device
US6081976 *Nov 3, 1999Jul 4, 2000Sunshine Kids Juvenile Products, LlcBelt shortening device
US6105211 *Feb 17, 2000Aug 22, 2000Constance F. BergerBelt shortening device
US6149132 *May 21, 1999Nov 21, 2000Ostrobrod; MeyerSafety apparatus for horizontal lifeline
US6230370Aug 10, 1999May 15, 2001Constance F. BergerBelt shortening device with side access slot
US6241174Nov 10, 1999Jun 5, 2001Constance F. BergerBelt shortening device
US6273353May 17, 2000Aug 14, 2001Constance F. BergerBelt shortening device with L-shaped spindle and improved guide tabs
US6279847Mar 16, 2000Aug 28, 2001Constance F. BergerBelt shortening device with L-shaped spindle
US6446936Nov 20, 2000Sep 10, 2002Meyer OstrobrodSafety apparatus for horizontal lifeline
US6779842Dec 2, 2002Aug 24, 2004Mcneff James R.Child automotive safety seat with integral seat belt tensioner
US7059676Aug 24, 2004Jun 13, 2006Mcneff James RChild automotive safety seat with integral seat belt tensioner
EP0043198A1 *Jun 11, 1981Jan 6, 1982Ancra CorporationStrap tensioning tool and buckle
Classifications
U.S. Classification254/243, 24/68.00R, 24/68.0CD
International ClassificationB65D63/16, B65D63/10
Cooperative ClassificationB65D63/16
European ClassificationB65D63/16