US 3815208 A
A slider holder for assembling sliders on a concealed slide fastener chain is provided with structural features designed to accept sliders of different types and sizes without having to change the slider receptacle parts. A pair of spring-loaded clamping means are provided for clamping the slider into position in cooperation with a stationary retaining bar with other parts of the device disposed clear of the path of the fastener chain to facilitate the assembling operation.
Description (OCR text may contain errors)
United States Patent [191 Kawakami [111 3,815,208 [451 June '11, 1974 SLIDER HOLDER FOR CONCEALED FASTENER CHAIN  Inventor: Koichi Kawakami, Toyama, Japan  Assignee: Yoshida Kogyo Kabushiki Kaisha,
Tokyo, Japan 221 Filed: May17, 1973 21 Appl. N0'.= 361,144
 Foreign Application Priority Data May 22, 1972 Japan 47-51004  US. Cl 29/207.5 SL [5i] Int. Cl B23p 19/04  Field of Search 29/207.5 SL, 207.5 R, 200 J, 29/200 P  References Cited UNITED STATES PATENTS 3,629,926 l2/l97i Maeda 29/207.5 SL
Primary Examiner-Th0mas H. Eager I 0 ABSTRACT A slider holder for assembling sliders on a concealed slide fastener chain is provided with structural features designed to accept sliders of different types and sizes without having to change the slider receptacle parts. A pair of spring-loaded clamping means are provided for clamping the slider into position in cooperation with a stationary retaining bar with other parts of the device disposed clear of the path of the fastener chain to facilitate the assembling operation.
5 Claims, 6 Drawing Figures SLIDER HOLDER FOR CONCEALED FASTENER I CHAIN BACKGROUND OF THE INVENTION This invention relates to an assembling device forv of the holder shown as in aposition ready formounting slide fasteners and more particularly to an improved device for releasably holding sliders while assembling a concealed slide fastener chain therethrough.
Assembling devices of the type described have been proposed in different forms but most of them have in volved the complexities in mounting and dismounting I the slider, the difficulty of threading a fastener chain through the slider and the inability of holding sliders deviating in size and shape and from those of the particular slider receptacle used. A typical prior art device is known wherein the device comprises a slider receptacle configured to fit the peripheral contour of a particular slider and a bar member swingable into and away from a position for locking the slider in assembling position. This prior art device requires complicated mechanical arrangements for moving and locking the bar member. The slider mounting and dismounting operations according to such prior art are very tedious and time-consuming in that the bar member must be moved away from the path of the fastener chain into an inclined position to allow the entry of a slider into a mounting position, in which instance the bar member comes visually into the way of the slider each time the latter is manipulated into the slider receptacle and the bar member is thereafter moved arcuately into abutting engagement with the head of the slider to stabilize the position of the latter. Such assembly work when repeated will impose increased fatigue upon the operator. In addition, the slider receptacle is of such a construction which either prohibits the entry therein of sliders deviating in size and shape from the particular characteristics of the receptacle, or fails to retain such a deviating slider in stable position even if it can be forcibly held in the receptacle. It is further disadvantageous from the economical and maintenance points of view to have to change the slider receptacles with changes in the type and size of sliders to be assembled.
SUMMARY OF THE INVENTION Whereas,-it is the primary object of the present invention to provide an improved slider holder which is slider holding capacity such that sliders of differenttypes or deviating in the size or shape can be received and retained satisfactorily for assembly on a fastener chain.
With these objects in view, the invention will be readily understood from the following detailed description taken in conjunction with the accompanying drawings showing one specific embodiment only for illustrative purposes.
BRIEF DESCRIPTION OF THE DRAWINGS In the accompanying-drawings:
the slider therein;
FIG. 4 is a cross-sectional view IV-IV of FIG. 3;
FIG. 5 is a view similar to FIG. 3 but showing the holder holding the slider as in a position ready for assembling a slide fastener chain therethrough; and
FIG. 6 is a cross-sectional view taken on theline VIVI of FIG. 5.
DESCRIPTION OF. THE PREFERRED EMBODIMENTS taken on the line the housing 11 and with a bottom opening 14 communicating with the space 12.
Designated at 15 is a vertically movable carriage mounted in the hollow space 12 in sliding relationship to the inner walls 13. There is provided according to the invention a slider holding means having flexibility in the slider holding capacity such that sliders of different types or deviating is size or shape can be held stably in assembling position relative to a concealed slide fastener chain not shown. This holding means is constituted by a pair of oppositely disposed jaws l6 pivotally connected as by pivot pins 17 to the carriage l5 and a spring member 18 interposed between the jaws I6 and loaded in a bore 19 formed in the upper portion of the carriage. A typical slider 20 to which the holder 10 of the invention can be applied has a support lug20b supporting a locking lever 20c pivotally thereon, a usual pull tab20d linked to the lever 20c and side flange portions which usually contain substantially parallel regions20a.
The jaws 16 are provided at their respective lower ends with inwardly directed clamping hooks 16. for clamping the flange portions 20a of the slider 20 therebetween in a manner hereafter described. Cam surfaces 21 contiguous to the inner walls 13 are directed symmetrically inwardly for abutting engagement with the upper ends of the jaws 16 when the latter are raised retractively into a position ready for mounting the slider v 20 on the holder 10 as better shown in FIG. 4.
A retaining bar 22 is fixedly connected to the housing" 11 and projects downwardly from the lower end thereof. The bar 22 is provided at its inner side with a cam face 23 disposed for abutting engagement with the slider 20, more specifically with the lever 20c to lift the latter away from the guide channels of the slider through which the fastener chain is to be introduced, as better shown in FIG. 5.
There is provided a handle 24 which is connected via a laterally extending shaft 25 rotatably to an external wall of the housing 11. Projecting inwardly eccentrically from the connecting shaft 25 is a pin 26 which is fixedly connected to the carriage 15 above the pivot pins 17, whereby the carriage 1Sis caused to move vertically along the inner walls 13 of the housing 1 1 as the handle 24 is'rotated;
ln.the operation of the slider holder 10 constructed as above, the handle 24 is first turned counterclockwise to raise the carriage until the upper ends of the respective jaws 16 are brought simultaneously into abutting engagement with the corresponding cam surfaces2l and are thereby progressively converged toward each other against the tension of the spring 18, while the lower ends or hooks 16 of the jaws 16 are conversely diverged away from each other. In this position, the slider holder 10 is prepared for mounting a slider 20 in a space defined between the jaws l6'and the retaining bar 22. 'With the slider 20 thus set in a mounting position as shown in FIG. 3 wherein thewith the jaws 16 until the clamping hooks l6 converge and grab the slider 20 by its parallel flange portions 20a with the lever 20c finally resting against the cam face 23 and thereby lifted apart from the path of the fastener chain as bettershown in FIG. 5. Thus, the slider 20 is securely held in position by the clamping hooks 16' that are urged by spring 18 in a direction to clamp the slider resiliently therebetween in cooperation with the retaining bar 22 retaining the slider against displacement. ln this position, the fastener chain is manipulated through the guide channels of the slider 20 in well known manner.
Upon assembly of the fastener chain through the slider 20, the handle 24 is turned back clockwise until the upward stroke of the carriage 15 is limited by the engagement of the upper ends of the jaws 16 with the cam surfaces 21 thereby returning the holder 10 to the initial position shown in FIGS. 3 and 4. Advantageously, the assembled slider 20 is released by gravity from the holder l0 simply as the opposed clamping hooks 16 move away from each other, without the necessity of manipulating any other parts of the device. Thus, the holder 10 is ready for accepting the next slider in the manner already described, immediately as the preceding assembled slider is released.
It will be understood that the slider holding concept embodied in accordance with the invention affords flexibility in the holding capacity to permit of the placement and anchoring of sliders which may not'be uniform in size or shape. This is achieved by the arrange- 4 ment of the slider holder 10 in which the spacing or gap between the two opposed clamping jaws 16 is variable within a range required to conform to the contour of a given slider, and the slider; if it be deviating from standard size or shape, can be flexibly held between the jaws 16 that the resiliently biased toward each other by the action of the interposed spring member 18.
In addition, the mounting and dismounting of sliders is achieved simply by the reciprocal movement of the carriage 15 operatively associated with the jaws 16, without the necessity of operating any complicated mechanical parts.
I claim: l I
1. A slider holder used for releasably holding sliders while assembling a concealed slide fastener chain therethrough, said holder comprising a housing having a longitudinal hollow space in its interior and a bottom opening communicating therewith, a vertically movable carriage mounted in said hollow space, a pair of oppositely disposed jaws for clamping sliders in assembling position therebetween and pivotally connected to said carriage for movement therewith, a spring member spanning between and connected to said .pair of jaws for normally biasing the same toward each other at their respective one ends, means for driving said carriage, and a retaining bar projecting downwardly from the lower end of said housing opposite to said jaws and cooperating therewith in holding the slider in clamped position. I
2. The slider holder as claimed in claim 1 wherein said driving means is a handle rotatably connected to an external wall of said housing and provided with a pin extending laterally eccentrically therefrom, said pin being connected to said carriage for causing the latter to move as said handle is rotated.
3. The slider holder as claimed in claim 1 wherein said one ends of the respective jaws are configured into the form of coacting clamping hooks movable towards and away from each other for holding and releasing the slider.
4. The slider holder as claimed in claim 1 wherein said housing is provided therein with symmetric cam surfaces for abutting engagement with the other ends region of the flange portions of the slider.