Wheelchair accessory stand

• US 5,476,241 A
• Filed: 11/12/1993
• Issued: 12/19/1995
• Est. Priority Date: 11/12/1993
• Status: Expired due to Fees

• Current Assignee: David L. Helman
• Original Assignee: David L. Helman
• Inventors: Helman, David L.
• Primary Examiner(s): Braun, Leslie A.
• Assistant Examiner(s): COLLINS, CATHER
• Application Number:
  US08/151,561
• Time in Patent Office: 767 Days
• Field of Search: 248/225.3, 248/228, 248/257, 248/258, 248/274, 248/276, 248/278, 248/286, 248/316.6, 248/229, 248/285, 248/298, 248/309.1, 248/647, 297/DIG. 4, 297/19, 297/188, 297/194, 280/304.1
• US Class Current: 248/286.1
• CPC Class Codes: A01M 31/02 Shooting stands
• CPC Class Codes: A61G 5/10 Parts, details or accessories
• CPC Class Codes: A63B 2071/0018 for wheelchair users
• CPC Class Codes: F16M 11/041 Allowing quick release of the apparatus
• CPC Class Codes: F16M 11/048 adapted to forward-backward translation movement
• CPC Class Codes: F16M 11/2014 around a vertical axis F16M11/2035 takes precedence
• CPC Class Codes: F16M 11/24 changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each otherF16M11/42 takes precedence
• CPC Class Codes: F16M 13/02 for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
• CPC Class Codes: F16M 2200/027 by friction
• CPC Class Codes: F41A 23/00 Gun mountings, e.g. on vehicles; Disposition of guns on vehicles F41A25/00, F41A27/00 take precedence
• CPC Class Codes: F41A 23/28 Wheeled-gun mountings; Endless-track gun mountings
• CPC Class Codes: Y10S 297/04 Wheelchair

Abstract

An accessory stand for mounting on a wheelchair frame, the stand being particularly suited to receive a rifle, a camera, or other device which must be positioned and aimed at a target. The mounting stand offers a full range of movement when supporting the device being used by the wheelchair operator. The mounting assembly is removably mounted to the frame of the wheelchair and is disassembled into a compact unit for storing and transporting. The accessory stand provides a mounting bracket for mounting an adjustable vertical pole in front of the wheelchair in proximity to the wheelchair operator. A horizontal arm is connected to the top of the vertical pole and the height of the pole and the direction of the horizontal arm are adjustable. A slidable base is mounted on the horizontal arm and can be positioned at any position on the arm. The top of the slidable base is provided with a swivel-pivot mechanism connected to a pair of brackets. The brackets are adjustable to securely mount the rifle, camera, or other device. The swivel-pivot mechanism allows the wheelchair operator to easily aim the device by rotating the device in a horizontal direction or moving the device in a vertical direction.

Claims

1. A wheelchair stand for adjustably mounting a device in proximity to an operator of a wheelchair, said wheelchair stand comprising:

a) a mounting frame attached to the wheelchair;

b) a support means having a vertical pole rotatably connected to said mounting frame and a horizontal arm extending from the vertical pole;

c) a sliding base slidably mounted for fore and aft movement on the horizontal arm of said support means; and

d) a support bracket pivotally mounted to said sliding base, said support bracket including a pair of adjustable brackets for securing the device, said pair of brackets being removably connected to a foundation connected to said sliding base, said support bracket further including a means for rotating and pivoting the device, whereby the operator of the wheelchair may adjust said support means and said base, and rotate and pivot the device when secured by said brackets, to aim and operate the device.

2. The wheelchair stand defined in claim 1, wherein said mounting frame includes a-cross bar having a split mounting block at each end for securing the cross bar to a frame member of the wheelchair.

3. The wheelchair stand defined in claim 2, wherein said mounting frame includes a pair of independent cross bars connected to the wheelchair in parallel.

4. The wheelchair stand defined in claim 2, wherein the cross bar includes a sleeve bushing extending from the cross bar for rotatably supporting the vertical pole of said support means.

5. The wheelchair stand defined in claim 4, wherein the vertical pole of said support means includes an adjustable collar for engaging the sleeve bushing of said mounting frame whereby the vertical pole is rotatable in the sleeve bushing and the position of the collar on the vertical pole may be adjusted to determine the mounted height of the vertical pole.

6. The wheelchair stand defined in claim 1, wherein the vertical pole includes a threaded shaft at an end of the vertical pole and the horizontal arm includes a corresponding threaded opening at an end of the arm for connecting the vertical pole to the horizontal arm.

7. The wheelchair stand defined in claim 1, wherein said base includes a plurality of sleeve bearings to facilitate the movement of said base on the horizontal arm.

8. The wheelchair stand defined in claim 1, wherein the horizontal arm is generally square in cross section and said base is provided with a generally square aperture to facilitate the mounting of said base on the horizontal arm of said support means.

9. The wheelchair stand defined in claim 8, wherein a plurality of sleeve bearings are arranged in the aperture of said base such that at least one sleeve bearing is supporting the horizontal arm in said base.

10. The wheelchair stand defined in claim 1, wherein said base includes a means for selectively securing said base in any position on the horizontal arm.

11. The wheelchair stand defined in claim 1, wherein said means for rotating and pivoting the device comprises a swivel-pivot joint for securing said pair of adjustable brackets to said base.

12. The wheelchair stand defined in claim 1, wherein said pair of adjustable brackets includes a means for opening and closing the brackets for selectively securing and releasing the device being used by the operator of the wheelchair.

13. The wheelchair stand defined in claim 12, wherein said pair of adjustable brackets include a padded surface for engaging the device.

14. A wheelchair stand for adjustably mounting a device in proximity to an operator of a wheelchair, said wheelchair stand comprising:

a) a mounting frame provided with a cross bar having a split mounting block at each end for securing the cross bar to a frame member of the wheelchair and a sleeve bushing extending from the cross bar;

b) a support means having a vertical pole rotatably mounted in the sleeve busing of said mounting frame and a horizontal arm extending from the vertical pole;

c) a base provided with a full-length longitudinal aperture for slidably mounting said base on the horizontal arm of said support means, said base including a plurality of sleeve bearing in the aperture for engaging the horizontal arm; and

d) a pair of brackets provided with means for opening and closing the brackets to secure and release the device being used by the operator of the wheelchair, said pair of brackets being connected to said base by a swivel-pivot joint for selectively rotating and pivoting the device, whereby the operator of the wheelchair may adjust said support means and said base, and rotate and pivot the device secured by said brackets, to aim and operate the device.