WO1981002179A1 - Door holder for construction vehicles and the like - Google Patents

Door holder for construction vehicles and the like Download PDF

Info

Publication number
WO1981002179A1
WO1981002179A1 PCT/US1980/000054 US8000054W WO8102179A1 WO 1981002179 A1 WO1981002179 A1 WO 1981002179A1 US 8000054 W US8000054 W US 8000054W WO 8102179 A1 WO8102179 A1 WO 8102179A1
Authority
WO
WIPO (PCT)
Prior art keywords
door
latch member
secured
latch
vehicle
Prior art date
Application number
PCT/US1980/000054
Other languages
French (fr)
Inventor
C Mcreynolds
Original Assignee
C Mcreynolds
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by C Mcreynolds filed Critical C Mcreynolds
Priority to PCT/US1980/000054 priority Critical patent/WO1981002179A1/en
Publication of WO1981002179A1 publication Critical patent/WO1981002179A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/0486—Special type
    • B60J5/0487—Special type simplified doors related to cabins of, e.g. golf carts, tractors, jeeps, cranes, forklifts, etc.
    • 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
    • E05C17/46—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 in which the wing or a member fixed thereon is engaged by a movable fastening member in a fixed position; in which a movable fastening member mounted on the wing engages a stationary member
    • E05C17/50—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 in which the wing or a member fixed thereon is engaged by a movable fastening member in a fixed position; in which a movable fastening member mounted on the wing engages a stationary member comprising a single pivoted securing member

Definitions

  • the invention relates to a retractable door holder for selectively holding a door in its open position.
  • the operator may want to at least partially open the door of the cab for ventilation purposes. It is common practice to pivot the door l8 ⁇ and secure it to the cab by a standard latch mechanism. Thus, the operator is unable to only partially open the door which may prove desirable during certain operating conditions of the vehicle.
  • conventional latch mechanisms are exposed to potential damage since they are mounted externally on the vehicle. Also, the disposition of guard rails and the like on the platform of the cab may pose an obstruction, preventing full opening of the door.
  • the present invention is directed to overcoming one or more of the problems as set forth above.
  • an improved door holder is on a vehicle for holding a door in its open position.
  • the door holder includes latch means for moving between retracted and extended positions on the vehicle, and hook means secured on the door, for engaging the latch means when the door is in its open position and the latch means is in its extended position.
  • the latch means comprises a latch member composed of an elastomeric material, first stop means for limiting retraction of the latch member, and second stop means for limiting extension of the latch member.
  • the improved door holder of this invention thus provides for the holding of a door in a partially open position and is adapated to be retracted to a stored position to prevent potential damage thereto.
  • Figure 1 is an isometric view illustrating a wheel-loader having the door holder of the present invention mounted thereon;
  • Figure 2 is an enlarged top plan view illustrating the door holder in its operative condition of operation, holding the door in its open position;
  • Figure 3 is an enlarged sectional view, generally taken in the direction of arrows III-III in Figure 2, showing the latch member of the door holder in its retracted position by solid lines and in its extended position by phantom lines;
  • Figure 1 is a top plan view of the door holder, taken in the direction of arrows IV-IV in Figure 3;
  • Figure 5 is a longitudinal sectional view through the latch member of the door holder, taken in the direction of arrows V-V in Figure 3. Best Mode of Carrying Out the Invention
  • FIG. 1 illustrates a wheel-loader 10 having a door 11 pivotally mounted thereon by a plurality of hinges 12.
  • This invention is directed to an improved door holder 13, mounted on the wheel- loader holding the door in a partially open position to facilitate ventilation of the operator's cab on which the door is mounted.
  • door holder 13 finds particular application to construction vehicles, such as wheel-loader 10, it should be understood that it is adapted for use in many other applications wherein it is desired to hold a door in its open position.
  • door holder 13 includes a latch member 14 which is preferably composed of an elastomeric material, such as rubber stretching of the latch member thus permits extension thereof from its retracted, solid line position illustrated in Figure 3 to its extended, phantom line position 14'.
  • Latch member 14 is reciprocally mounted in an opening 15 formed through a platform or plate 16, disposed beneath door 11 and formed integrally with the frame of the vehicle.
  • Opening 15 is aligned with an opening 17, formed through a lower leg 18 of an L-shaped bracket 19.
  • An upstanding leg 20 of bracket 19 has an elastomeric bumper 21 secured thereon to provide a stop for holding door 11 at its open position.
  • Bracket 19 may be secured at any desired position on platform 16 to engage the door. In the example illustrated in Figure 2, maximum opening of the door occurs through an angle of approximately 70°, relative to a side wall of the operator's cab on which the door is mounted.
  • pin 23 will engage the upper side of leg 18, as shown in Figure 5, to maintain latch member 14 in its stored position when not used.
  • a second stop means 24, including a transversely disposed pin 25, will permit stretching and limit extension of latch member 14 to its phantom line position 14'.
  • a bulbous end 26 of the latch member Upon stretching of latch member 14 to its extended position 14' in Figure 3, a bulbous end 26 of the latch member will engage within a U-shaped hook 27, secured internally on door 11, as shown in Figures 2-4. If so desired, a standard tension spring could be interconnected between pin 25 and a stationary panel of the vehicle to aid in retracting latch member 14 to its Figure 3 stored position.
  • Door holder 13 finds particular application to construction vehicles, such as wheel-loader 10, illustrated in Figure 1.
  • Latch member 14 may be constructed and composed of an elastomeric material requiring a pulling force of sixty pounds, for example, to place the latch member in its latched position on hook 27.
  • the latch member will be held in tension to exert a pulling force on the door against rubber bumper 21 to thus dampen any vibrations which may be set up in the door during vehicle operation.
  • the latch member Upon release of latch member 14, the latch member will fall automatically under the influence of gravity to its retracted or stored position whereby the door may be closed.

Abstract

During operation of a construction vehicle, such as a wheel-loader, the operator may desire to open the door of the vehicle's cab for ventilation purposes. Full opening of the door may be obstructed by the deposition of a guard rail or the like, mounted on the platform of the cab, whereby the door can be only partially opened. It is thus desirable to provide a door holder which may be selectively positioned on the platform to hold the door in any desired, open position. In addition, standard latch mechanisms for holding a door of this type in its fully open position are generally mounted externally on the cab and are thus exposed to potential damage. The door holder (13) of this invention includes a latch member (14) movable between retracted and extended positions on the vehicle, and a hook (27) secured on a door (11) for engaging the latch member when the door is in open position and the latch member is in its extended position. The latch member is preferably composed of an elastomeric material to permit stretching thereof to its extended position.

Description

DESCRIPTION
DOOR HOLDER FOR CONSTRUCTION VEHICLES AND THE LIKE
Technical Field The invention relates to a retractable door holder for selectively holding a door in its open position.
Background Art
During operation of. a construction vehicle such as a wheel-loader, the operator may want to at least partially open the door of the cab for ventilation purposes. It is common practice to pivot the door l8θ and secure it to the cab by a standard latch mechanism. Thus, the operator is unable to only partially open the door which may prove desirable during certain operating conditions of the vehicle. In addition, conventional latch mechanisms are exposed to potential damage since they are mounted externally on the vehicle. Also, the disposition of guard rails and the like on the platform of the cab may pose an obstruction, preventing full opening of the door.
The present invention is directed to overcoming one or more of the problems as set forth above.
Disclosure of the Invention
In one aspect of this invention, an improved door holder is on a vehicle for holding a door in its open position. The door holder includes latch means for moving between retracted and extended positions on the vehicle, and hook means secured on the door, for engaging the latch means when the door is in its open position and the latch means is in its extended position.
In another aspect of this invention, the latch means comprises a latch member composed of an elastomeric material, first stop means for limiting retraction of the latch member, and second stop means for limiting extension of the latch member.
The improved door holder of this invention thus provides for the holding of a door in a partially open position and is adapated to be retracted to a stored position to prevent potential damage thereto.
Brief Description of Drawings
Figure 1 is an isometric view illustrating a wheel-loader having the door holder of the present invention mounted thereon;
Figure 2 is an enlarged top plan view illustrating the door holder in its operative condition of operation, holding the door in its open position;
Figure 3 is an enlarged sectional view, generally taken in the direction of arrows III-III in Figure 2, showing the latch member of the door holder in its retracted position by solid lines and in its extended position by phantom lines;
Figure 1 is a top plan view of the door holder, taken in the direction of arrows IV-IV in Figure 3; and
Figure 5 is a longitudinal sectional view through the latch member of the door holder, taken in the direction of arrows V-V in Figure 3. Best Mode of Carrying Out the Invention
Figure 1 illustrates a wheel-loader 10 having a door 11 pivotally mounted thereon by a plurality of hinges 12. This invention is directed to an improved door holder 13, mounted on the wheel- loader holding the door in a partially open position to facilitate ventilation of the operator's cab on which the door is mounted. Although door holder 13 finds particular application to construction vehicles, such as wheel-loader 10, it should be understood that it is adapted for use in many other applications wherein it is desired to hold a door in its open position.
Referring to Figures 2-5, door holder 13 includes a latch member 14 which is preferably composed of an elastomeric material, such as rubber stretching of the latch member thus permits extension thereof from its retracted, solid line position illustrated in Figure 3 to its extended, phantom line position 14'. Latch member 14 is reciprocally mounted in an opening 15 formed through a platform or plate 16, disposed beneath door 11 and formed integrally with the frame of the vehicle.
Opening 15 is aligned with an opening 17, formed through a lower leg 18 of an L-shaped bracket 19. An upstanding leg 20 of bracket 19 has an elastomeric bumper 21 secured thereon to provide a stop for holding door 11 at its open position. Bracket 19 may be secured at any desired position on platform 16 to engage the door. In the example illustrated in Figure 2, maximum opening of the door occurs through an angle of approximately 70°, relative to a side wall of the operator's cab on which the door is mounted.
A first stop means 22, shown in the form of a transversely disposed pin 23 secured on an upper end of latch member 14, functions to limit retraction of the latch member to its stored position illustrated in Figure 3. In particular, pin 23 will engage the upper side of leg 18, as shown in Figure 5, to maintain latch member 14 in its stored position when not used. A second stop means 24, including a transversely disposed pin 25, will permit stretching and limit extension of latch member 14 to its phantom line position 14'.
Upon stretching of latch member 14 to its extended position 14' in Figure 3, a bulbous end 26 of the latch member will engage within a U-shaped hook 27, secured internally on door 11, as shown in Figures 2-4. If so desired, a standard tension spring could be interconnected between pin 25 and a stationary panel of the vehicle to aid in retracting latch member 14 to its Figure 3 stored position.
Industrial Applicability
Door holder 13 finds particular application to construction vehicles, such as wheel-loader 10, illustrated in Figure 1. When the operator desires to open door 11 to its Figure 2 position, he need only reach down and pull latch member 14 to its extended position 14' in Figure 2 to engage the latch member over hook 27. Latch member 14 may be constructed and composed of an elastomeric material requiring a pulling force of sixty pounds, for example, to place the latch member in its latched position on hook 27. The latch member will be held in tension to exert a pulling force on the door against rubber bumper 21 to thus dampen any vibrations which may be set up in the door during vehicle operation. Upon release of latch member 14, the latch member will fall automatically under the influence of gravity to its retracted or stored position whereby the door may be closed.
Other aspects, objects, and advantages of this invention can be obtained from the study of the drawing, the disclosure, and the appended claims.

Claims

1. In a vehicle (10) having a door (11) pivotally mounted thereon for movement between closed and open positions and door holding means (13) for holding said door in its open position, the improvement comprising said door opening means, including latch means (14) for moving between retracted and extended positions on said vehicle and hook means (27) for releasably engaging said latch means when said door is in its opened position and said latch means is in its extended position.
2. The vehicle of claim 1 further including a platform (16) disposed beneath said door when said door is in its open position and wherein said latch means is mounted on said platform.
3. The vehicle of claim 2 wherein said platform has an opening (15) formed therethrough and wherein said latch means is reciprocally mounted in said opening.
4. The vehicle of claim 3 wherein said door holding means further includes first stop means (22) for retaining said latch member in its retracted position and second stop means (24) for limiting movement of said latch member to its extended position.
5. The vehicle of claim 4 wherein said first stop means includes a pin (23) secured on an upper end (26) of said latch member to overlie said platform when said latch member is in its retracted position and wherein said second stop means includes a pin (25) secured to a lower end of said latch member to underlie said platform when said latch member is moved to its extended position.
6. The vehicle of claim 2 wherein said hook means is secured internally on said door and further including an upstanding bracket (19) secured on said platform, adjacent to said latch means, having a stop (-.1) secured thereon to engage an external side of said door when said door is in its open position.
1. The vehicle of claim 1 wherein said latch means is composed of an elastomeric material stretchable to its extended position.
8. A door holder (13) comprising a latch member (14) composed of an elastomeric material stretchable between retracted and extended positions, first stop means (22) for limiting retraction of said latch member, and second stop means (24) for limiting extension of said latch member.
9. The door holder of claim 8 further including a door (11) movable between closed and open positions, a hook (27) secured on said door, and a plate (16) disposed beneath said door when said door is in its open position and wherein said latch member is mounted on said plate to engage said hook in its extended position.
10. The door holder of claim 9 wherein said plate has an opening (15) formed therethrough and wherein said latch member is reciprocally mounted in said opening.
11. The door holder of claim 8 wherein said first stop means includes a pin (23) secured on a first end (26) of said latch member and wherein said second stop means includes a pin (25) secured to a second end of said latch member.
12. The door holder of claim 9 wherein said hook is secured internally on said door and further including an upstanding bracket (19) secured on said plate, adjacent to said latch member, having a stop (21) secured thereon to engage an external side of said door when said door is in its open position.
-■ REAJ*-
OMPI /., IPO \,
PCT/US1980/000054 1980-01-21 1980-01-21 Door holder for construction vehicles and the like WO1981002179A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US1980/000054 WO1981002179A1 (en) 1980-01-21 1980-01-21 Door holder for construction vehicles and the like

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
WOUS80/00054 1980-01-21
PCT/US1980/000054 WO1981002179A1 (en) 1980-01-21 1980-01-21 Door holder for construction vehicles and the like

Publications (1)

Publication Number Publication Date
WO1981002179A1 true WO1981002179A1 (en) 1981-08-06

Family

ID=22154161

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1980/000054 WO1981002179A1 (en) 1980-01-21 1980-01-21 Door holder for construction vehicles and the like

Country Status (1)

Country Link
WO (1) WO1981002179A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4738329A (en) * 1986-06-26 1988-04-19 Deere & Company Door positioner

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1678025A (en) * 1923-07-27 1928-07-24 Hudson Motor Car Co Hood latch for automobiles
US1698959A (en) * 1926-08-25 1929-01-15 Williams G Milligan Hood clamp and the like
US1784224A (en) * 1929-02-25 1930-12-09 Bade Cummins Mfg Company Hood clamp
CA969994A (en) * 1972-07-31 1975-06-24 Societe Du Caoutchouc Technique Latch assembly
US4035016A (en) * 1976-04-21 1977-07-12 Caterpillar Tractor Co. Door holding assembly
US4073524A (en) * 1976-08-13 1978-02-14 Caterpillar Tractor Co. Restraint assembly for a tractor hood
US4074788A (en) * 1976-08-09 1978-02-21 Steiger Tractor Inc. Tractor door latch

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1678025A (en) * 1923-07-27 1928-07-24 Hudson Motor Car Co Hood latch for automobiles
US1698959A (en) * 1926-08-25 1929-01-15 Williams G Milligan Hood clamp and the like
US1784224A (en) * 1929-02-25 1930-12-09 Bade Cummins Mfg Company Hood clamp
CA969994A (en) * 1972-07-31 1975-06-24 Societe Du Caoutchouc Technique Latch assembly
US4035016A (en) * 1976-04-21 1977-07-12 Caterpillar Tractor Co. Door holding assembly
US4074788A (en) * 1976-08-09 1978-02-21 Steiger Tractor Inc. Tractor door latch
US4073524A (en) * 1976-08-13 1978-02-14 Caterpillar Tractor Co. Restraint assembly for a tractor hood

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4738329A (en) * 1986-06-26 1988-04-19 Deere & Company Door positioner

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