EP0109136A1 - Door checks - Google Patents
Door checks Download PDFInfo
- Publication number
- EP0109136A1 EP0109136A1 EP83301380A EP83301380A EP0109136A1 EP 0109136 A1 EP0109136 A1 EP 0109136A1 EP 83301380 A EP83301380 A EP 83301380A EP 83301380 A EP83301380 A EP 83301380A EP 0109136 A1 EP0109136 A1 EP 0109136A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- leg
- bracket
- bar
- door
- roller
- 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
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
- E05C17/20—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod sliding through a guide
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
- E05C17/20—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod sliding through a guide
- E05C17/203—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod sliding through a guide concealed, e.g. for vehicles
Definitions
- This invention relates to door checks particularly, but no exclusively, door checks intended for use on the doors of motor vehicles.
- one current test procedure consists of subjecting an unlubricated mechanism to 100,000 operations with the mechanism periodically dusted with desert soil.
- the present invention is aimed at reducing the relative tilting of the rollers.
- a door check comprises a contoured check arm adapted to be pivotally secured to a door or door pillar, and a bracket adapted to be secured to a door pillar or door respectively, first and second rollers mounted on or in the bracket with the check arm extending between the rollers, a spring bar carried by the bracket and comprising a leg of which the free end is restrained to the bracket, and the opposite end of the leg is continuous with one end of a bent portion of the bar, the other end of the bent portion of bar being restrained directly or indirectly to the bracket, and the first roller is mounted on a portion of the leg spaced from said free end, the arrangement being such that said portion of the leg remains substantially parallel to the axis of the second roller during deflection of the leg in use.
- the free end of the leg may be restrained by being clamped to the bracket it is preferred that the free end is pivotally supported on the bracket.
- the free end of the leg is preferably provided with a recess in one side which engages with the bracket to provide a fulcrum for the pivoting, and to locate the free end.
- the bent portion of the bar may be arranged to act as a torsion bar, or it may be arranged to be subjected to bending stresses only, or a combination of torsion and bending stresses may be employed.
- the second roller is mounted on said other end of the bent portion of the bar.
- said other end is held against lateral movement relative to the bracket so that only the first roller is displaced relative to the bracket on movement of the check arm.
- both rollers are movable relative to the bracket, and said other end of the bent portion is continuous with a second leg of the bar on which the second roller is mounted, and the free end of that leg is restrained to the bracket.
- the bracket is conveniently formed from sheet material that is bent into an angular S-shape, the rollers are held captive between two of the horizontal limbs of the S, and the free end of the or each leg is pivoted on the third horizontal limb of the S.
- the first check illustrated comprises a bracket 1 formed from a rectangular strip of sheet material by bending about five transverse lines so as to be substantially of angular S-shape, as shown in Figure 2, comprising three parallel, horizontally extending walls 2, 3, and 4, and vertical walls 5 and 6 for connection by screws engaging holes 7 to a door or door pillar.
- the walls 2 and 3 of the bracket are connected by a further vertical wall 8 which is apertured at 11 to receive a contoured horizontal check arm 9 provided with a pivot hole 10 for attachment to a door pillar or door respectively.
- bracket 1 is shown mounted in a vehicle door, with the pivot 10 secured to a further bracket 10' mounted on a door post.
- the hinge axis of the door is indicated at X.
- First and second plain cylindrical rollers 12 and 13 respectively are mounted on a spring bar 14 and vertically between the bracket walls 2, 3.
- the spring bar comprises parallel vertical legs 15 and 16, and a bent portion 17 which inter-connects the legs 15, 16.
- Leg 15 is substantially longer than leg 16 and extends through a hole 18 provided in lower wall 4 with which it has a pivotal abutment to restrain it against lateral movement.
- leg 15 In order to locate the free end 19 of leg 15 against vertical movement relative to wall 4, the end 19 is provided with a recess 20 on the side remote from leg 16 which receives the edge of the material of wall 4, and the recess 20 thereby acts as a fulcrum for pivotal movement of the lower part of leg 15.
- Notch 20 is produced by local flattening of the bar.
- Leg 15 extends through respective aligned open-ended slots 21, Figure 1, in the walls 2, 3, the slots extending in the direction away from leg 16 to enable the first roller 12 to move laterally of the bracket 1.
- the shorter leg 16 extends through aligned holes 22 in the walls 2, 3, and the leg 16 and second roller 13 are thereby held against lateral movement relative to the bracket 1.
- the bent portion 17 of the bar 14 comprises a horizontally extending substantially U-shaped part 23 extending substantially perpendicularly to the walls 5, 6, that is generally in the direction of movement of the check arm 9, and a pair of right-angle bend parts 24, Figure 2, which connects the limbs of the U respectively to the upper ends of the legs 15, 16.
- the limbs of the U-shaped part 24 converge slightly towards their free ends.
- Check arm 9 is contoured in the usual way to provide two hold-open positions of the door in use. Movement of the check arm between the rollers 12, 13 causes first roller 12 to be deflected away from roller 13 against the spring force exerted by bar 14. Displacement of the roller 12 away from roller 13 is accommodated by a relative movement apart of bar parts 24 to open the U-shaped part 23, and by pivoting of leg 15 about free end 19.
- Figures 7 to 9 show a second check, and corresponding reference numbers have been applied to parts corresponding to the check of Figure 1.
- the check differs from that of Figure 1 only in the shape of the bent portion 17 of the bar 14, the right-angle parts 24 being omitted, so that the U-shaped part 23 extends vertically. This is useful in circumstances where space is limited.
- Figure 10 shows a more significant departure from the arrangement of Figure 1 in that the legs 15, 16 are made of equal length, and the free ends 19, 19' of the legs both have pivotal abutments with the bracket lower wall 4.
- the rollers 12, 13 are both capable of lateral movement relative to bracket, slots similar to slots 21 of Figure 1 being provided also for the leg 16 to accommodate the lateral movement of roller 13.
- the arrangement of the bar 14 and rollers 12, 13 is entirely symmetrical in this arrangement.
- Figure 11 shows a modified bar arrangement which may be used in a check similar to that of Figure 10.
- the bent portion 17 is in the form of a coil.
- check arm is not relevant to the invention and that many forms of check arm may instead by employed.
- a laminated check arm may be employed where the rollers engage with the wider sides of the arm rather than with the narrow edges.
Abstract
Description
- This invention relates to door checks particularly, but no exclusively, door checks intended for use on the doors of motor vehicles.
- Vehicle manufacturers and Government bodies are devising increasingly stiff tests which door checks must survive in order to be considered suitable for use. For example, one current test procedure consists of subjecting an unlubricated mechanism to 100,000 operations with the mechanism periodically dusted with desert soil.
- Whilst there has been a multitude of previous proposals for door checks most of them would not stand up to such arduous tests, or at least the modifications required to meet the tests would be prohibitively expensive.
- The major problem facing a door check designer is therefore to produce a check which will perform satisfactorily in use yet be inexpensive to manufacture.
- One relatively inexpensive door check arrangement was proposed in our U.K. Patent Specification No. 1247755 in which a contoured check arm extends between a pair of rollers mounted in a bracket, and one of the rollers is resiliently biassed towards the other'roller by being mounted on one arm of a torsion bar. U.K. Specification No. 1.597 747 shows a not dissimilar arrangement. In U.K. Specification No. 1 449 671 instead of a torsion bar a coiled bar is employed, with the movable roller mounted on one free end of the bar.
- We have realised that in those previous arrangements the problem can arise that the axis of the movable roller tilts in use relative to the axis of the fixed roller, and during prolonged use an edge of the check arm may dig into the roller, particularly if a plain roller is employed. Also tilting of the roller tends to twist the check arm which can result in excessive wear in other regions.
- The present invention is aimed at reducing the relative tilting of the rollers.
- According to the invention a door check comprises a contoured check arm adapted to be pivotally secured to a door or door pillar, and a bracket adapted to be secured to a door pillar or door respectively, first and second rollers mounted on or in the bracket with the check arm extending between the rollers, a spring bar carried by the bracket and comprising a leg of which the free end is restrained to the bracket, and the opposite end of the leg is continuous with one end of a bent portion of the bar, the other end of the bent portion of bar being restrained directly or indirectly to the bracket, and the first roller is mounted on a portion of the leg spaced from said free end, the arrangement being such that said portion of the leg remains substantially parallel to the axis of the second roller during deflection of the leg in use.
- Since the free end of the leg is restrained to the bracket, the tilting of said portion of the leg can be resisted.
- It will be appreciated that a sufficiently long leg must be employed to provide a sufficient length of the leg between the first roller and the restrained free end to accommodate the lateral movement of the roller.
- Although the free end of the leg may be restrained by being clamped to the bracket it is preferred that the free end is pivotally supported on the bracket.
- The free end of the leg is preferably provided with a recess in one side which engages with the bracket to provide a fulcrum for the pivoting, and to locate the free end.
- The bent portion of the bar may be arranged to act as a torsion bar, or it may be arranged to be subjected to bending stresses only, or a combination of torsion and bending stresses may be employed.
- Thus, we are in effect proposing substantially to extend one arm of previously proposed arrangements and to restrain the free end of that arm against lateral movement relative to the bracket, and this principle is applicable to both bending bar and torsion bar arrangements.
- Preferably the second roller is mounted on said other end of the bent portion of the bar.
- In one such arrangement said other end is held against lateral movement relative to the bracket so that only the first roller is displaced relative to the bracket on movement of the check arm.
- In another arrangement, however, both rollers are movable relative to the bracket, and said other end of the bent portion is continuous with a second leg of the bar on which the second roller is mounted, and the free end of that leg is restrained to the bracket.
- The bracket is conveniently formed from sheet material that is bent into an angular S-shape, the rollers are held captive between two of the horizontal limbs of the S, and the free end of the or each leg is pivoted on the third horizontal limb of the S.
- Various door checks for vehicles in accordance with the invention will now be described, by way of example only, with reference to the accompanying drawings in which:-
- Figure 1. is a plan view of a first check shown mounted in a vehicle, with the door in the closed position;
- Figure 2 is a side elevation of the check of Figure 1 looking in the direction of the arrow A;
- Figure 3 is an end view looking in the direction of the arrow B in Figure 1;
- Figure 4 is a partial cross-section on the line 4-4 of Figure 1;
- Figure 5 is a plan view of the spring bar in its relaxed condition;
- Figure 6 is a view of the relaxed spring bar looking in the direction of the arrow C in Figure 5;
- Figure 7 is a plan view of a second check;
- Figures 8 and 9 are views of the check of Figure 7 on the arrows D and E respectively;
- Figure 10 is a view corresponding to Figure 9 but of a modification of the second check; and
- Figure 11 is two views of a modified spring bar.
- With reference to Figures 1 to 3, the first check illustrated comprises a
bracket 1 formed from a rectangular strip of sheet material by bending about five transverse lines so as to be substantially of angular S-shape, as shown in Figure 2, comprising three parallel, horizontally extendingwalls vertical walls screws engaging holes 7 to a door or door pillar. Thewalls 2 and 3 of the bracket are connected by a furthervertical wall 8 which is apertured at 11 to receive a contoured horizontal check arm 9 provided with apivot hole 10 for attachment to a door pillar or door respectively. - In Figure 1 the
bracket 1 is shown mounted in a vehicle door, with thepivot 10 secured to a further bracket 10' mounted on a door post. The hinge axis of the door is indicated at X. - First and second plain
cylindrical rollers spring bar 14 and vertically between thebracket walls 2, 3. The spring bar comprises parallelvertical legs bent portion 17 which inter-connects thelegs Leg 15 is substantially longer thanleg 16 and extends through ahole 18 provided inlower wall 4 with which it has a pivotal abutment to restrain it against lateral movement. - In order to locate the
free end 19 ofleg 15 against vertical movement relative towall 4, theend 19 is provided with arecess 20 on the side remote fromleg 16 which receives the edge of the material ofwall 4, and therecess 20 thereby acts as a fulcrum for pivotal movement of the lower part ofleg 15.Notch 20 is produced by local flattening of the bar.Leg 15 extends through respective aligned open-ended slots 21, Figure 1, in thewalls 2, 3, the slots extending in the direction away fromleg 16 to enable thefirst roller 12 to move laterally of thebracket 1. - The
shorter leg 16 extends through alignedholes 22 in thewalls 2, 3, and theleg 16 andsecond roller 13 are thereby held against lateral movement relative to thebracket 1. - The
bent portion 17 of thebar 14 comprises a horizontally extending substantially U-shapedpart 23 extending substantially perpendicularly to thewalls angle bend parts 24, Figure 2, which connects the limbs of the U respectively to the upper ends of thelegs part 24 converge slightly towards their free ends. - Check arm 9 is contoured in the usual way to provide two hold-open positions of the door in use. Movement of the check arm between the
rollers first roller 12 to be deflected away fromroller 13 against the spring force exerted bybar 14. Displacement of theroller 12 away fromroller 13 is accommodated by a relative movement apart ofbar parts 24 to open the U-shapedpart 23, and by pivoting ofleg 15 aboutfree end 19. - It will be appreciated that in this arrangement the
bar 14 is subjected to both torsional and bending stresses. Displacment of theroller 12 produces both bending and twisting of the limbs of theU-shaped part 23. In the unstressed condition of thebar 14, shown in Figures 5 and 6, prior to assembly tobracket 1, thelegs part 23, diverging from each other, so that substantial torsional stresses are present in the assembled bar, these being resisted by the engagement betweenbar end 19 andlower wall 4. - The pivotal deflection of the
leg 15 is shown in Figure 4 and it will be seen that control of the position of thefree end 19 ofleg 15 results in control over the inclination of the axis of thefirst roller 12 relative to the vertical. Although there will usually be a slight change in the inclination of theroller 12 this will usually be much less than with previous arrangements. - It is preferred that the contoured side of the check arm engages with the anchored
roller 13, but the reverse would be possible. This reduces the wear produced in the engagement betweenbar 14 and theslots 21. - Figures 7 to 9 show a second check, and corresponding reference numbers have been applied to parts corresponding to the check of Figure 1.
- The check differs from that of Figure 1 only in the shape of the
bent portion 17 of thebar 14, the right-angle parts 24 being omitted, so that the U-shapedpart 23 extends vertically. This is useful in circumstances where space is limited. - It will be appreciated that the operation of the check of Figures 7 to 9 is identical to that of Figure 1, except that the limbs of
part 23 are not subjected to torsional stresses. - Figure 10 shows a more significant departure from the arrangement of Figure 1 in that the
legs free ends 19, 19' of the legs both have pivotal abutments with the bracketlower wall 4. Therollers slots 21 of Figure 1 being provided also for theleg 16 to accommodate the lateral movement ofroller 13. Thus the arrangement of thebar 14 androllers - The shape of the
bent portion 17 of the bar is identical to that of Figure 9. - Figure 11 shows a modified bar arrangement which may be used in a check similar to that of Figure 10. In this case the
bent portion 17 is in the form of a coil. - It will be appreciated that the construction of the check arm is not relevant to the invention and that many forms of check arm may instead by employed. For example, a laminated check arm may be employed where the rollers engage with the wider sides of the arm rather than with the narrow edges.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT83301380T ATE24946T1 (en) | 1982-11-10 | 1983-03-14 | DOOR STOPPER. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8232156 | 1982-11-10 | ||
GB8232156 | 1982-11-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0109136A1 true EP0109136A1 (en) | 1984-05-23 |
EP0109136B1 EP0109136B1 (en) | 1987-01-14 |
Family
ID=10534179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83301380A Expired EP0109136B1 (en) | 1982-11-10 | 1983-03-14 | Door checks |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0109136B1 (en) |
JP (1) | JPS5988579A (en) |
KR (1) | KR890002522B1 (en) |
AT (1) | ATE24946T1 (en) |
DE (1) | DE3369171D1 (en) |
GB (1) | GB2130295B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003042477A1 (en) * | 2001-11-15 | 2003-05-22 | Ventra Group Inc. | Torsion spring door check device |
US6687953B1 (en) | 2000-10-13 | 2004-02-10 | Ventra Group Inc. | Torsion spring door check device |
RU2587559C2 (en) * | 2011-09-06 | 2016-06-20 | Мультиматик Инк. | Torsion door movement limiter |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB795867A (en) * | 1955-03-09 | 1958-06-04 | Standard Pressed Steel Co | Check straps for vehicle doors |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2724143A (en) * | 1951-04-18 | 1955-11-22 | Ford Motor Co | Door checking and holding device |
GB739973A (en) * | 1953-04-21 | 1955-11-02 | Ford Motor Co | Improvements in or relating to motor vehicle door checking and holding device |
GB786455A (en) * | 1954-10-25 | 1957-11-20 | Ford Motor Co | Improvements in or relating to door checking and holding devices for motor vehicles |
GB840603A (en) * | 1957-07-19 | 1960-07-06 | Happich Gmbh Gebr | Improvements in or relating to door checks |
GB1028577A (en) * | 1963-05-24 | 1966-05-04 | Ford Motor Co | Motor vehicle door |
GB1247755A (en) * | 1969-06-28 | 1971-09-29 | Bloxvich Lock Stamping | Improvements in door checks |
GB1449671A (en) * | 1973-02-13 | 1976-09-15 | Ihw Eng Ltd | Door check unit |
GB1448680A (en) * | 1973-02-24 | 1976-09-08 | Ihw Eng Ltd | Door-check unit |
GB1426823A (en) * | 1973-05-25 | 1976-03-03 | Bloxvich Lock Stamping | Door checks |
DE2620916A1 (en) * | 1976-05-12 | 1977-11-24 | Scharwaechter Kg | DOOR LOCK, IN PARTICULAR FOR VEHICLE DOORS |
DE2727608A1 (en) * | 1977-06-20 | 1979-01-04 | Scharwaechter Gmbh Co Kg | DOOR LOCKER FOR VEHICLE DOORS |
-
1983
- 1983-03-14 EP EP83301380A patent/EP0109136B1/en not_active Expired
- 1983-03-14 AT AT83301380T patent/ATE24946T1/en not_active IP Right Cessation
- 1983-03-14 DE DE8383301380T patent/DE3369171D1/en not_active Expired
- 1983-04-27 JP JP58074870A patent/JPS5988579A/en active Granted
- 1983-04-27 KR KR1019830001778A patent/KR890002522B1/en not_active IP Right Cessation
- 1983-11-09 GB GB08329914A patent/GB2130295B/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB795867A (en) * | 1955-03-09 | 1958-06-04 | Standard Pressed Steel Co | Check straps for vehicle doors |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6687953B1 (en) | 2000-10-13 | 2004-02-10 | Ventra Group Inc. | Torsion spring door check device |
WO2003042477A1 (en) * | 2001-11-15 | 2003-05-22 | Ventra Group Inc. | Torsion spring door check device |
RU2587559C2 (en) * | 2011-09-06 | 2016-06-20 | Мультиматик Инк. | Torsion door movement limiter |
Also Published As
Publication number | Publication date |
---|---|
EP0109136B1 (en) | 1987-01-14 |
KR840006692A (en) | 1984-12-01 |
JPH0257638B2 (en) | 1990-12-05 |
JPS5988579A (en) | 1984-05-22 |
ATE24946T1 (en) | 1987-01-15 |
KR890002522B1 (en) | 1989-07-13 |
GB2130295A (en) | 1984-05-31 |
DE3369171D1 (en) | 1987-02-19 |
GB8329914D0 (en) | 1983-12-14 |
GB2130295B (en) | 1986-09-10 |
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