US20010054544A1 - Method of locking support railings along a conveyor path - Google Patents
Method of locking support railings along a conveyor path Download PDFInfo
- Publication number
- US20010054544A1 US20010054544A1 US09/821,093 US82109301A US2001054544A1 US 20010054544 A1 US20010054544 A1 US 20010054544A1 US 82109301 A US82109301 A US 82109301A US 2001054544 A1 US2001054544 A1 US 2001054544A1
- Authority
- US
- United States
- Prior art keywords
- support
- tool
- bracket
- locking
- railing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
- B65G21/2045—Mechanical means for guiding or retaining the load on the load-carrying surface
- B65G21/2063—Mechanical means for guiding or retaining the load on the load-carrying surface comprising elements not movable in the direction of load-transport
- B65G21/2072—Laterial guidance means
Abstract
The present invention relates to a method of fixedly locking support railings (2) along a conveyor path. The support railings (2) are of the type which has a circular cross section and are mounted in brackets (1) in one or more rows.
The fixedly locking takes place by means of a tool (4) with two shanks (5) which enter into engagement with the support railing (2). A locking pin (8) is placed between the upper side (9) of the tool (4) and the bracket (1). The tool (4) is thereafter turned so that the locking pin (8) follows the periphery of the support railing (2) until the upper side of the tool (4) abuts against the bracket (1). The locking pin (8) has then reached a locking position. The method is re-usable.
Description
- The present invention relates to a method of fixedly locking support railings along a conveyor path, the support railings being of the type which have a circulars cross section and which, in one or more rows, are mounted in brackets.
- Many manufacturing industries employ conveyors for conveying small or medium-sized objects or parts between production stations or from production to packing of the finished objects. Usually, the conveyors consist of driven, endless chains or belts on which the objects are advanced. Support railings often occur, disposed along the conveyor paths. The support railings are above all necessary when the objects being conveyed have a high point of gravity. The purpose of the support railings is to prevent the objects from falling off the conveyor, at the same time as the support rails must not in any way impede or risk damaging the objects.
- Such conveyors also occur to a considerable extent within industries that manufacture single-use disposable packages for liquid foods. Single-use disposable packages for liquid foods are often manufactured from a packaging laminate containing paperboard with different plastic layers. For example, the single-use packages may have a parallelepipedic configuration, or alternatively they may be of the gable-top package type. A feature common to all single-use packages of this type is that they often have a high point of gravity and it is, therefore, necessary that the conveyors be provided with support railings which are properly fixedly mounted in place.
- The support railings which occur most commonly today are of circular cross section, consisting of a slim tube piece. The support railings occur on both sides of the conveyor path and are disposed in one or two rows horizontally placed above each other. Each support railing is held in position by a bracket and these are normally designed for two parallel support railings. In their turn, the brackets are secured in the conveyor.
- It is important that the support railing is properly fixedly secured in the bracket, and today this anchoring normally takes place with small plastic blocks which are axially slid in between the bracket and the support railing. During the fixing operation, which takes place with a tool, a piece of the plastic block is sheared off, which implies that the mounting operation must take place with the operator wearing protective goggles in order not to run the risk of being injured by flying plastic debris. However, an excessively large plastic piece is quite often sheared off, with the result that an insufficient anchorage of the support railing is obtained. Despite the fact that the plastic is specifically adapted for its purpose, it is affected by water and detergents and cracks or softens with the passage of time. Vibrations in the conveyor may result in the plastic block being laterally displaced and finally falling out of the bracket.
- In particular where two parts of a support railing are joined together in a bracket, it is important that the support railings are securely in place. If a support railing comes loose, there is the risk of scratch marks on the packages which pass by the broken railing. There is also a risk that the support railing which has come loose takes hold of and tears off drinking straws or the like which are applied on the packages.
- One object of the present invention is to realise a simple and reliable method of locking the support railings fixedly in place along a conveyor.
- A further object of the present invention is that the locking arrangement must be able to withstand the environment in which the support railings are mounted, and that the method, after dismounting of support railings, is re-usable.
- These and other objects have been attained according to the present invention, in that the method of the type described by way of introduction has been given the characterising feature that the method includes a locking pin which is moved peripherally along the support railing in towards the bracket to a locking position.
- Preferred embodiments of the present invention have further been given the characterising features as set forth in the appended subclaims.
- One preferred embodiment of the method according to the present invention will now be described in greater detail hereinbelow, with particular reference to the accompanying Drawing, in which:
- FIG. 1 shows, partly in section, how the method is reduced into practice.
- The Drawing shows only those parts and details essential to an understanding of the present invention, and the placing of the bracket along a conveyor path, which is well-known to a person skilled in the art, has been omitted.
- FIG. 1 shows a part of a
bracket 1 intended for asupport railing 2 of circular cross section. Thebracket 1 is intended to be mounted along a conveyor path (not shown). Thesupport railing 2 in principle consists of a slim tube and comprises lengths that are joined together to form a continuous support railing 2. - The
brackets 1 are placed with uniform spacing along thesupport railings 2 and they are always placed at that point where thesupport railing 2 is joined together. Thebrackets 1 have a certain width along which they fixedly hold the support railing 2. The width is slightly narrower along a whole section of asupport railing 2 and slightly wider in the joints, so that thebracket 1 properly covers the two joined-together parts of thesupport railing 2. - The
bracket 1 has at least one recess 3 for asupport railing 2. Thosebrackets 1 that are employed for single-use packages today most generally have tworecesses 3 placed above one another. Therecess 3 is considerably larger than the cross section of thesupport railing 2. The remaining space in therecess 3 is employed to lock the support railing 2 fast in therecess 3. - FIG. 1 shows how the method according to the present invention is reduced into practice for locking the support railing2 fast in the
bracket 1. Thesupport railing 2 is applied loosely in thebracket 1. Atool 4 is applied around thebracket 1 and thesupport railing 2. Thetool 4 consists of twoshanks 5 with a distance between theshanks 5 that corresponds to the width of thebracket 1. Theshanks 5 are held together by means of ahandle 6. Thehandle 6 is in the form of a slightly angled flat steel. Theshanks 5 each have arecess 7 with a radius that corresponds to the radius of thesupport railing 2. - The
tool 4 is applied so that theshanks 5 are placed on either side of thebracket 1 and so that therecesses 7 of theshanks 5 enter into engagement with thesupport railing 2. Therecesses 7 of theshanks 5 are designed so that they surround thesupport railing 2 for approximately half of its circumference. Thetool 4 is placed at such an angle as shown in FIG. 1, so that alocking pin 8 can be placed between the planarupper side 9 of thehandle 6 and thebracket 1. Thelocking pin 8′ is shown in the Drawing in the unlocked state by solid lines. - By pulling the
handle 6 in the direction of the arrow, thelocking pin 8 is moved peripherally along thesurface 2 of the support railing into a locking position 10 (thelocking pin 8″ is shown by broken lines). The movement of thehandle 6 in the direction of the arrow is terminated when the planarupper side 9 abuts against thebracket 1 and thelocking pin 8″ is then in the lockedposition 10. The lockedposition 10 consists of a minor scooped region in thebracket 1 which is sufficient to hold thelocking pin 8 in place. - The
locking pin 8 is of a material that has superior properties vis-a-vis the environment, normally a dairy environment, where thesupport railings 2 are mounted. The material should have good flexural rigidity and is preferably manufactured from stainless spring steel. The diameter of the locking pin is adapted so that a reliable locking function will be obtained in relation to the diameter of thesupport railing 2 and the design of therecess 3. Thebrackets 1 are most generally manufactured from aluminium and thesupport railing 2 consists of a relatively slim tube of stainless steel. By selection of materials, there will, on the one hand, be obtained a suitable composition for the environment in which the parts are to be mounted, and, on the other hand, there will be obtained a certain flexing of thebracket 1 and supportrailing 2 at the instant of assembly. Thesupport railing 2, thebracket 1 and thelocking pin 8 are adapted to one another so that there will be obtained a reliable locking in place of thesupport railing 2. - By making the
locking pin 8 somewhat wider than thebracket 1 in which thepin 8 is to be mounted, the lockingpin 8 will project out a few millimeters on either side of thebracket 1. This affords the possibility of simply being able to dismount thelocking pin 8. Thehandle 6 of thetool 4 may suitably be designed so that the other end of thetool 4 is provided with a suitable device for dismounting thelocking pin 8. By the selection of material for thelocking pin 8 with high flexural rigidity, the lockingpin 8 may be dismounted without being bent and thelocking pin 8 is thereby entirely re-usable. - As will have been apparent from the foregoing description, the present invention realises a method of locking support railings in place along a conveyor path in a simple and reliable manner. The method does not suffer from any of the problems and drawbacks of prior art solutions, and the method is also re-usable.
Claims (5)
1. A method of fixedly locking support railings (2) along a conveyor path, the support railings (2) being of the type which have a circular cross section and which, in one or more rows, are mounted in brackets (1), characterised in that the method includes a locking pin (8) which is moved peripherally along the support railing 2 in towards the bracket (1) to a locking position (10).
2. The method as claimed in , characterised in that the fixedly locking takes place by means of a tool (4), which, during the locking, enters into engagement with the support railing (2).
claim 1
3. The method as claimed in , characterised in that the tool (4) enters into engagement with the support railing (2) approximately along half of the periphery of the support railing (2).
claim 2
4. The method as claimed in , characterised in that the tool (4) has two shanks (5) which enter into engagement with the support railing (2).
claim 2
5. The method as claimed in , characterised in that the locking pin (8) is placed between the upper side (9) of the tool (4) and the bracket (1); and that the tool (4) is rotated so that the locking pin (8) follows the periphery of the support railing (2) until the upper side (9) of the tool (4) abuts against the bracket (1).
claim 2
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0001189 | 2000-04-03 | ||
SE0001189-0 | 2000-04-03 | ||
SE0001189A SE517188C2 (en) | 2000-04-03 | 2000-04-03 | Method for locking the support rails along a conveyor path |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010054544A1 true US20010054544A1 (en) | 2001-12-27 |
US6405856B2 US6405856B2 (en) | 2002-06-18 |
Family
ID=20279128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/821,093 Expired - Lifetime US6405856B2 (en) | 2000-04-03 | 2001-03-30 | Method of locking support railings along a conveyor path |
Country Status (4)
Country | Link |
---|---|
US (1) | US6405856B2 (en) |
EP (1) | EP1148005B1 (en) |
DE (1) | DE60104932T2 (en) |
SE (1) | SE517188C2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2900915B1 (en) * | 2006-05-10 | 2008-12-26 | Financ De Gestion Soc Civ Ile | SEALING BUTTON FOR CONVEYOR |
EP2794436B1 (en) * | 2011-12-23 | 2016-04-13 | Dematic Corp. | Sorter slat attachment |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2156020A (en) * | 1936-08-22 | 1939-04-25 | Lathrop Paulson Co | Conveyer |
SE324133B (en) | 1965-05-06 | 1970-05-19 | Tepar Ag | |
DE2251820C2 (en) * | 1972-10-21 | 1975-01-23 | Stoehr-Foerderanlagen Salzer Gmbh, 6050 Offenbach | Conveyor track with supports rotatably mounted on the side cheeks for receiving pockets for the conveyed goods |
US3788457A (en) * | 1972-10-24 | 1974-01-29 | Nat Can Corp | Guide rail for a conveyor |
GB1516309A (en) | 1974-09-23 | 1978-07-05 | Ward C | Clamping means for conveyor mechanisms |
SE8102745L (en) * | 1981-04-30 | 1982-10-31 | Skf Ab | ROOMS FOR THE ROWS, LISTS AND FUN |
SE468983B (en) * | 1987-01-22 | 1993-04-26 | Profor Ab | TRANSPORT UNIT |
US4958725A (en) * | 1988-09-12 | 1990-09-25 | Simplimatic Engineering Company | Conveyor guide railing assembly |
US4932517A (en) * | 1989-03-17 | 1990-06-12 | Pobco Inc. | Guide rail system |
FR2656288B1 (en) * | 1989-12-26 | 1992-04-17 | Gross Maurice | GUIDE RAMP FOR CARDAN CONVEYOR CHAIN. |
GB9213858D0 (en) | 1992-06-30 | 1992-08-12 | Bryant Timothy J H | Clamping devices for securing skirts to skirt plates in position along the edge zones of a conveyor belt |
AU7259096A (en) * | 1995-10-06 | 1997-04-28 | Valu Engineering, Inc. | Self-tightening compression clip |
US5860511A (en) | 1996-11-15 | 1999-01-19 | Rexnord Corporation | Conveyor guide rail supports |
IT243966Y1 (en) | 1998-04-27 | 2002-03-06 | System Plast Snc Marsetti & C | TIGHTENING DEVICE FOR AT LEAST ONE PIN SUPPORT OF BELT CONVEYOR COMPONENTS |
-
2000
- 2000-04-03 SE SE0001189A patent/SE517188C2/en not_active IP Right Cessation
-
2001
- 2001-03-30 US US09/821,093 patent/US6405856B2/en not_active Expired - Lifetime
- 2001-04-02 DE DE60104932T patent/DE60104932T2/en not_active Expired - Lifetime
- 2001-04-02 EP EP01108289A patent/EP1148005B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
SE517188C2 (en) | 2002-05-07 |
EP1148005A1 (en) | 2001-10-24 |
SE0001189L (en) | 2001-10-04 |
DE60104932D1 (en) | 2004-09-23 |
US6405856B2 (en) | 2002-06-18 |
SE0001189D0 (en) | 2000-04-03 |
DE60104932T2 (en) | 2005-08-18 |
EP1148005B1 (en) | 2004-08-18 |
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Owner name: TETRA LAVAL HOLDINGS & FINANCE SA, SWITZERLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SJOSTRAND, UNO;REEL/FRAME:012019/0163 Effective date: 20010716 |
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