JP5571942B2 - Armrest and armchair for armchair push-down wheelchair - Google Patents

Description

  The present invention relates to an armrest of an armrest push-down type wheelchair in which armrests attached to both side surfaces of a seat portion can be turned up and down to facilitate getting on and off of a wheelchair user.

  Wheelchair armrests are indispensable for handicapped users to leave their hands on the armrest while sitting in the wheelchair. However, when getting on and off the wheelchair, there was a problem that it was difficult for the armrest to get on and off. A method is conceivable in which the armrest is detachable and removed when not in use, and is attached and used when necessary. In this detachable type, the detachment work must be performed each time. Furthermore, there is a problem that a storage place for the removed armrest is required and the armrest is lost.

  The armrest of Patent Document 1 describes in paragraph [0014], “In other words, when the armrest body is raised by providing a pivot shaft for supporting the armrest body on the back side of the backrest, the entire armrest body is backrested. Further, the armrest body in a standing state is slid to the back side of the backrest portion together with the rotation shaft by pivotally supporting the rotation shaft so as to be slidable in the width direction of the backrest. Thus, the armrest is easily and reliably stored on the back side of the backrest so that it does not get in the way when not in use. "The armrest is disclosed.

  In paragraph [0025] of Patent Document 2, “the armrest device 11 will be further described. The armrest device 11 is arranged on the base frame 4 from the vicinity of the mounting position of the back frame 7 as shown in FIG. 6 is provided with a support member 26 arranged over the attachment location, and an armrest member 27 attached to the support member 26, and the support member 26 pivots on and off the end of the base frame 4 on the back frame 7 side. While being pivotally supported via the support mechanism 28, the end on the foot frame 6 attachment location side is detachably supported via the lock mechanism 29. "An armrest is disclosed.

  The armrest of Patent Document 3 states in paragraph [0021]: “When a person gets on and off the wheelchair (1) from either the left or right side, the flat portion (51a of the front lower end portion of the armrest frame (4)). ), The engagement bolt (2A) engaged with the side frame (2) is inserted into the fitting groove (51b), and the lock hole (53i) of the lock piece (53) is opened outward with a finger. 53i) after removing the engagement bolt (2A), the armrest portion (3) is slightly lifted to remove the fitting groove (51b) from the engagement bolt (2A), and the armrest portion (3) is attached to the back frame. Rotate sideways around (2a), so that the armrest (3) does not get in the way, and for example, it is very easy for a sick or elderly person to move from a wheelchair to a bed. " From the sixth line of [0022] When the armrest (3) is in the way, the armrest (3) can be completely removed from both sides of the wheelchair (1). "An armrest is disclosed.

  As described above, the conventional removable armrest has a risk of losing parts. Further, in the flip-up type, there is a risk that the side plate suddenly falls during use and pinches the hand. Furthermore, there is a problem that the side plate made of cloth that prevents the hand from being caught cannot be used for the above-described removal and flip-up type armrest.

JP 2001-212182 A JP 2003-126172 A JP 2004-97490 A

  As described above, the conventional armrest has a risk of losing parts in a removable armrest. Moreover, in the type which flips up to the back of a wheelchair, there exists a danger that a side plate will fall suddenly at the time of use, and a hand will be pinched | interposed. Although the cloth side plate can prevent a hand from being caught, there is a problem that it cannot be attached to a removable armrest or a flip-up armrest. Accordingly, the present invention provides an armrest for an armrest push-down type wheelchair in which armrests attached to both side surfaces of a seat portion can be easily turned up and down to facilitate getting on and off of a wheelchair user. It is.

  The armrest of the armchair push-down wheelchair of the present invention is an armrest of the armchair push-down wheelchair in which the armrest installed on both side surfaces of the seat portion can be turned up and down to facilitate getting on and off the wheelchair user. However, it has the following characteristics.

  The armrest of the armchair push-down type wheelchair of the present invention is such that one end of the armrest pipe of the wheelchair is pivotally attached to the back frame, the other end is slidably inserted into the slide member, and a pipe end cap is attached. One end of the connecting member is pivotally attached to the lower part of the slide member, the other end of the connecting member is pivotally attached to the main body frame, and the slide member inserted slidably into the armrest pipe is fixed. It is an armrest of an armrest push-down type wheelchair characterized in that a stopper is attached. The armrest of the arm-push-down type wheelchair of the present invention is an armrest that does not need to be removed and does not need to be flipped up. Easy to get on and off from the side.

  The armrest of the armchair push-down wheelchair according to the present invention is an armrest of the armchair push-down wheelchair characterized in that a button-type stopper for fixing a slide member slidably inserted into the armrest pipe is attached. By installing a button-type stopper under the armrest, the armrest can be lowered just by pressing the button without applying a great force.

  An armrest of an armrest push-down type wheelchair according to the present invention is an armrest of an armrest pushdown type wheelchair characterized in that a lever-type stopper for fixing a slide member slidably inserted into an armrest pipe is attached. By installing the lever under the armrest, the armrest can be lowered by grasping the lever without applying a great force.

  The armrest of the armchair push-down wheelchair according to the present invention is an armrest of the armchair push-down wheelchair characterized in that a wire-type stopper for fixing a slide member slidably inserted into the armrest pipe is attached. If it is possible to operate from behind the wheelchair with a wire instead of a stopper, the helper can lower the armrest without turning in front of the wheelchair.

  The armrest of an armrest push-down type wheelchair according to the present invention is an armrest of an armrest pushdown type wheelchair characterized in that a cloth side plate for preventing handclaws is attached between a main body frame and an armrest pipe. By installing a cloth side plate for preventing handcuffing between the main body frame and the armrest pipe, it is possible to prevent a hand or a garment from being pinched.

  An armrest of an armrest push-down type wheelchair according to the present invention is an armrest of an armrest pushdown type wheelchair characterized by mounting a pipe cover on an armrest pipe fitted with a cloth side plate for preventing hand scissors. By attaching a cloth side plate to the armrest pipe and attaching the pipe cover, the cloth side plate is protected, and there is an effect of increasing stability when the elbow is placed.

  Since the armrest of the armrest push-down type wheelchair of the present invention does not need to be attached or detached, there is no fear of searching for a storage place or losing it during storage. Since the armrest is not placed on the back side, there is no danger of the armrest falling suddenly and pinching your hand. The armrest of the armchair-push-down wheelchair of the present invention can be fitted with a cloth side plate to prevent a hand from being pinched, thus providing a highly safe wheelchair. Since it can be configured coaxially with the frame back pipe, the overall width can be reduced. The armrest of the present invention is automatically locked by returning the armrest to the original position, and there is no overcoming of the lock, and since the space at the rear of the wheelchair is free when pushed down, it does not interfere with nursing care from the rear, etc. Has an effect.

The side view and sectional drawing of an armrest pipe are shown. The side view and top view of a slide member inserted in an armrest pipe are shown. The side view of the connection member pivotally attached to the lower part of a slide member is shown. The side view which assembled the armrest of an armrest push-down type wheelchair is shown. The side view of the member of the various stoppers which fix a slide member is shown. The side view of the wheelchair which installed the stopper of the button type which fixes a slide member is shown. The side view of the wheelchair which installed the stopper of the lever type which fixes a slide member is shown. The side view of the wheelchair which installed the stopper of the wire form which fixes the slide member under an armrest is shown. The fragmentary perspective view which attached the cloth side board for prevention of a handclaw between the main body frame and the armrest pipe is shown.

  The armrest of the armchair push-down wheelchair of the present invention will be described in detail below with reference to the drawings, but the present invention is not limited to the following embodiments.

  FIG. 1 is a side view of an armrest pipe 11 constituting an armrest 100 of an armrest push-down wheelchair according to the present invention. 1 (1-1), the rear shaft attachment portion 11a on one side of the armrest pipe 11 is pivotally attached to the backrest frame 17, and the open end portion 11b on the other side is inserted with the slide member 12 so that the pipe end cap 11f is inserted. (See FIGS. 4 and 8). 11c, 11d, and 11e of FIG. 1 (1-2) have shown the cross-sectional shape of c, d, and e positions of the armrest pipe 11 shown in FIG. 1 (1-1). The cap attaching part 11c in the drawing shows the cross-sectional shape of the open end part 11b of the armrest pipe 11, and the stopper attaching part 11e shows the cross-sectional shape of the position where the pin 15c (see FIG. 8) for the stopper 15 is attached. The intermediate portion 11d shows the cross-sectional shape of the portion where the slide member 12 slides from this position to the front of 11a. C ′, b ′, and e ′ in FIG. 1 (1-3) indicate portions c, d, and e in FIG. 1 (1-1) as viewed from the lower surface of the armrest pipe 11.

  FIG. 2 (2-1) shows a slide member 12 that is slidably inserted into the armrest pipe 11. The slide 12a of the slide member 12 is a portion that slides back and forth in the armrest pipe 11, and the pin hole 12b is a hole into which a stopper pin 15c (see FIG. 8) is inserted. The hole of the shaft attaching portion 12c of the connecting member of the slide member 12 and the connecting hole 13b of the connecting member 13 shown in the next figure are rotatably attached to the shaft. FIG. 2 (2-2) is a top view of the slide member 12, and a pin hole 12b into which a stopper pin 15c is inserted is formed in the front. 2d in FIG. 2 (2-3) is a cross-sectional view of the slide member 12 taken along the line -A-A-.

  FIG. 3 shows a side view of the connecting member 13. A connecting hole 13 b is formed in the upper connecting portion 13 a of the connecting member 13, and the connecting hole 13 b is pivotally attached to the shaft attaching portion 12 c of the connecting member of the slide member 12. The lower connecting portion 13c of the connecting member 13 is pivotally attached to the front portion of the main body frame 16 so as to be rotatable. When the connecting member 13 is pivotally attached to each other and the connecting member 13 is lowered, the slide member 12 slides backward in the armrest pipe 11 and the armrest pipe 11 is pulled down. It becomes possible.

  In FIG. 4, a slide member 12 is slidably inserted into the armrest pipe 11, and a cap 11f is fixed to the open end of the armrest pipe, and the cap 11f is fixed with a screw 11g. The axially attaching portion 12c of the inserted slide member 12 and the connecting hole 13b of the connecting member 13 are axially attached. The lower connecting portion 13c of the connecting member 13 is pivotally attached to the front portion of the main body frame 16 so as to be rotatable. Although the connection member 13 used here has a dogleg shape, it is not limited to a dogleg shape, and a straight pipe may be used.

  In FIG. 5, the slide member 12 is inserted into the armrest pipe 11, the open end is covered with a cap 11 f and fixed with a screw 11 g, and a pipe cover 14 is attached to the upper part of the armrest pipe 11. A method of attaching a stopper pin 15c for fixing the slide member 12 inserted into the armrest pipe 11 will be described below. FIG. 5 (5-1) shows an assembling method of the pin 15c when the pin removal operation is the button type 15A. Fig. 5 (5-2) shows a method for assembling the pin when the pin removal operation is the lever type 15B. FIG. 5 (5-3) shows an assembling method of the pin when the pin removing operation is the wire type 15C.

  As shown in FIG. 5 (5-1), the stopper 15 of the button type 15A has a joint 15a installed in a hole 11d (see FIG. 1) in which the stopper 15 of the armrest 11 is installed, and a spring member 15d is installed on the inside thereof. The biased pin 15c is inserted. A joint 15b for holding the spring member 15d is inserted into the head of the pin 15c, a button is attached to the head of the pin 15c, and the button 15e is fixed with a screw 15f to form a stopper 15 of the button type 15A.

  As shown in FIG. 5 (5-2), the stopper 15 of the lever type 15B is provided with a joint 15a, and a pin 15c biasing the spring member 15d is inserted therein. A joint 15b for holding the spring member 15d is inserted into the head of the pin 15c, and a support member 15i is inserted between the joint 15b and the lever 15h and fixed with a pin head fixing screw 15h. As shown in the top view 15j of the support member, a hole through which a pin passes and a screw hole for attaching a lever to the upper part are formed. When lowering the armrest, the pin can be removed by pulling the lever 15g toward the armrest.

  As shown in FIG. 5 (5-3), the stopper 15 of the wire type 15C has a support member 15k attached between the armrest pipe 11 and the joint 15b, and a button on the head of the pin 15c through the hole of the support member 15k. A wire end fixing portion 15m is attached instead of 15e. The wire 15n can remove the pin 15c by pulling the lever 24 attached to the rear part of the wheelchair.

  FIG. 6 shows an armrest push-down type wheelchair in which a stopper 15 of the button type 15A of the present invention is attached to a foldable wheelchair having a footrest 19 and a rotatable caster 20 at the front and having a main wheel 18 at the rear. This shows an example of wearing an armrest. The rear frame lever 23 attached in the middle of the back frame 17 is a lever for folding the back frame 17. FIG. 7 shows an example in which an armrest of an armrest push-down wheelchair equipped with a stopper 15 of the lever type 15B is attached to the same wheelchair. FIG. 8 shows an example in which an armrest of an armrest push-down wheelchair equipped with a stopper 15 of the wire type 15C is attached.

  FIG. 6 (6-1) shows that the slide member 12 is slidably inserted into the armrest pipe 11 of the wheelchair, the cap 11f is attached to the open end, and is connected to the shaft attaching portion 12c of the connecting member of the slide member 12. The upper connecting portion 13a of the member 13 is pivotally attached to the body 13 and the lower connecting portion 13c of the connecting member 13 is pivotally attached to the main body frame 16, and is slidably inserted into the armrest pipe 11. The wheelchair which equipped the armrest of the armrest push-down type wheelchair which installed the stopper 15 of the button type 15A which fixes the slide member 12 is shown. FIG. 6 (6-2) shows a state where the stopper 15 of the button type 15A is released and the connecting member 13 is pushed down.

  FIG. 7 (7-1) shows an armrest 100 of an armrest push-down type wheelchair in which a stopper 15 of a lever type 15B for fixing a slide member 12 slidably inserted into the armrest pipe 11 is attached. FIG. 7 (7-2) shows a state in which the stopper 15 of the lever type 15B is released, the connecting member 13 is pushed down, and the armrest 11 is lowered.

  FIG. 8 (8-1) shows an armrest in which a stopper 15 for fixing a slide member 12 slidably inserted into an armrest pipe 11 and a rear lever 24 for stopper are connected by a wire and a stopper 15 of a wire type 15C is attached. An armrest 100 of a push-down wheelchair is shown. FIG. 8 (8-2) shows a state where the armrest pipe 11 is lowered by operating the stopper rear lever 24 attached to the rear part of the wheelchair to release the stopper 15 and pushing down the connecting member 13.

  FIG. 9 (9-1) shows an armrest of an armrest push-down type wheelchair in which a cloth side plate 25 for preventing handclaws is attached between the main body frame 16 and the armrest pipe 11 and an armrest pipe cover 14 is provided. 100 is shown. FIG. 9 (9-2) shows a state where the armrest 100 of the armrest push-down wheelchair in which the cloth side plate 25 for preventing handclaws is attached between the main body frame 16 and the armrest pipe 11 is pushed down. . In this way, by installing the cloth side plate 25, it is possible to prevent a hand from being caught and to prevent clothing such as a skirt from being caught in the main wheel 18. The armrest pipe cover 14 is made of a hard synthetic resin on the abutting side of the armrest pipe, and the abutting position of the elbow or the like is covered with a soft type synthetic resin so as to reduce vibrations generated during movement of the wheelchair. . By attaching the armrest pipe cover 14 to the armrest pipe 11, the installation location of the cloth side plate 25 is protected, and there is an effect of increasing a sense of stability when the occupant puts his elbow.

100: Armrest 11: Armrest pipe 11
11a: Rear shaft attaching portion 11b: Open end 11c: Cap attaching portion 11d: Intermediate portion 11e: Stopper pin attaching portion 11f: Pipe end cap 11g: Cap screw 12: Slide member 12a: Slide portion 12b: Stopper pin insertion hole 12c: Attached portion 12d of connecting member: -A-A sectional view of slide member 13: Connecting member 13a: Upper connecting portion 13b: Connecting hole 13c: Lower connecting portion 14: Armrest pipe cover 15: Armrest stopper 15A: Button type stopper 15B: Lever type stopper 15C: Wire type stopper 15a: Joint 15b: Joint 15c: Pin 15d: Spring member 15e: Button 15f: Screw 15g: Lever 15h: Pin head Fixing screw 15i: support member 15j: upper surface 15k of support member: support Material 15l: Upper surface 15m of support member: Wire end fixing part 15n: Wire 16: Main body frame 17: Back frame 18: Main wheel 19: Footrest 20: Turnable caster 21: Handle 22: Brake handle 23: Rear frame Lever 24: Stopper rear lever 25: Fabric side plate

Claims (6)

It pivoted to the back frame end after wheelchair armrest pipe, wherein the slide member into the armrest pipe inserted slidably, pivotally attached to be one pivoted end of the connecting member to the lower portion of the sliding member the other end of the connecting member pivotally attached rotatably to the body frame, the armrest releasably fixed to the stopper and clamped by the armrest pipe said slide member which is slidably inserted into the armrest pipe,
When the connecting member is lowered in a state where the fixing by the stopper is released, the slide member slides backward in the armrest pipe, and the other end of the armrest pipe is pulled down. Type wheelchair armrest.   The armrest of an armrest push-down type wheelchair according to claim 1, further comprising a button-type stopper for fixing a slide member slidably inserted into the armrest pipe.   The armrest of the armrest push-down type wheelchair according to claim 1, wherein a lever-type stopper for fixing a slide member slidably inserted into the armrest pipe is attached.   The armrest of an armrest push-down type wheelchair according to claim 1, further comprising a wire-type stopper for fixing a slide member slidably inserted into the armrest pipe.   The armrest of the armrest push-down type wheelchair according to any one of claims 1 to 4, wherein a cloth side plate for preventing handclaws is attached to the main body frame and the armrest pipe. A wheelchair provided with the armrest according to any one of claims 1 to 5.

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