JP2005168528A - Wheelchair with combined headrest / table - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wheelchair capable of moving a headrest for letting the head lean thereon to a position to be used as a table in a simple operation. <P>SOLUTION: This wheelchair 10 with a member for the headrest-cum-table is upward provided with left/right headrest pipes 35 and 31 on left/right backrest pipes 23 and 24, the left headrest pipe 35 is provided with the left end 41a of the headrest 41, the right headrest pipe 31 is detachably provided with the right end 41b of the headrest 41, the left headrest pipe 35 is provided with a turning part 38 turning the headrest 41 from the head to a retreated position, and a frame 11 is provided with a rotational turning part 33 frontward tilting the left headrest pipe 35 to an armrest part 18. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a wheelchair with a headrest / table combined member, and more particularly to a wheelchair with a headrest / table combined member provided with elbow rests on the left and right sides of the user when the user is sitting.

In general, a wheelchair assists a person with a physical disability to move in a sitting position, and some wheelchairs are provided with a headrest for leaning a user's head.
According to this wheelchair, when the user moves in the wheelchair, the user can be relaxed by leaning his head on the headrest.

Some wheelchair users want to eat or read while sitting in a wheelchair. When dining or reading in a wheelchair, a table for tableware and books is required.
For this reason, it is necessary to always prepare a table for eating or reading near the wheelchair, and place the table on the armrest of the wheelchair when necessary.

However, in order to always prepare a table for eating or reading near the wheelchair, a space for placing the table is required.
Furthermore, when a user moves with a wheelchair, it is necessary to carry a table to the position which the wheelchair moved.

By the way, there are chairs for infants equipped with a headrest that also serves as a table that can be used as a headrest at normal times and as a table when necessary (see, for example, Patent Document 1).
Utility Model Registration No. 3005704 (FIG. 5)

Patent document 1 is demonstrated based on the following figure.
FIG. 16 is a diagram for explaining a conventional basic configuration.
The chair 200 for infants is attached to the rear part of the chair body 201 so that the shafts 203 and 203 of the handle 202 can swing freely, and a headrest 204 also serving as a table is slidably provided on the shafts 203 and 203. By connecting the 201 with the stay metal parts 205 and 205, the shafts 203 and 203 are held up against the stay metal parts 205 and 205, and the headrest 204 is disposed behind the infant's head (not shown). By folding 205, 205, the shafts 203, 203 are tilted forward and the headrest 204 is arranged in front of the infant.

According to this infant chair 200, the headrest 204 is slid upward along the shafts 203 and 203 as shown by the arrows, so that the headrest 204 is disposed above the head of the infant. The headrest 204 is placed on the armrests 206 and 206 of the chair body 201 by tilting the handle 202 forward as indicated by an arrow while folding 205.
Thereby, the headrest 204 can be used as a table.

By applying the configuration of the headrest 204 that also serves as a table to a wheelchair (not shown), it is possible to save the space for placing the table and the trouble of carrying the table to the moving position of the wheelchair.
However, when using the headrest 204 as a table, the infant chair 200 needs to slide over the head of the infant to get over the head of the infant.
Since the infant is small in height, the lifting height of the headrest 204 can be kept low even if the headrest 204 is slid above the head of the infant.

However, many wheelchair users are adults, and using the configuration of the headrest 204 of the infant chair 200 requires a caregiver to lift the headrest high in order to get over the user's head.
Thus, after a caregiver lifts a headrest high, it is necessary to move to the front position which uses a headrest as a table, maintaining this state, and a big burden is placed on a caregiver.
Therefore, there has been a demand for practical application of a technique that can easily move a headrest provided in a wheelchair to a position to be used as a table.

  An object of the present invention is to provide a wheelchair with a headrest / table combination member that can move a headrest for leaning on the head to a position to be used as a table by a simple operation.

  In the invention according to claim 1, the left and right back pipes constituting a part of the frame of the wheelchair are provided with a back portion, the elbow rest pipe is provided forward from the back rest pipe, and the elbow rest pipe is provided with an elbow. In the wheelchair provided with a contact portion, the left and right back pipes are provided with headrest pipes facing upward, and one of the headrest pipes is provided with one end of a headrest serving as a table, and the other headrest pipe is provided with the headrest. The other end of the headrest pipe is detachably provided, the one headrest pipe is provided with a turning portion capable of turning to the position where the headrest is retracted from the head, and the one headrest pipe is provided in front of the elbow rest on the frame. It is characterized in that a tilting rotation part is provided.

A headrest pipe was provided on the backrest pipe, and the other end of the headrest was provided detachably on the other headrest pipe. And the turning part was provided in one headrest pipe.
Therefore, after removing the other end of the headrest from the other headrest pipe, it is possible to turn the headrest to a position where it is retracted from the head at the turning portion.

Accordingly, when the headrest pipe is tilted forward to the elbow rest with the rotating portion provided on the frame, it is not necessary to lift the headrest above the head.
Thus, the headrest can be easily retracted from the head by simply removing the other end of the headrest from the other headrest pipe and turning the headrest.

  According to the second aspect of the present invention, the left and right backrest pipes constituting a part of the frame of the wheelchair are provided with a backrest portion, the elbow rest pipe is provided forward from the backrest pipe, and the elbow rest portion is provided on the elbow rest pipe. In the wheelchair provided, the left and right backrest pipes are provided with headrest pipes facing upward, the left and right headrest pipes are detachably provided with headrests serving as tables, and the headrests removed from the left and right headrest pipes are It is characterized in that it can be placed on the part.

A headrest pipe is provided on the backrest pipe, and the headrest is detachably provided on the headrest pipe. Therefore, the headrest can be removed from the headrest pipe and moved to the elbow rest.
And a headrest is used as a table by mounting the headrest removed from the headrest pipe on an elbow rest part.
In this way, the headrest can be easily used as a table by simply removing the headrest from the headrest pipe.

  In the invention which concerns on Claim 1, there exists an advantage that it can move by simple operation to the position which uses a headrest as a table by removing the other end of a headrest from a headrest pipe and turning a headrest.

  In the invention which concerns on Claim 2, there exists an advantage that it can move by simple operation to the position which uses a headrest as a table by removing a headrest from a headrest pipe.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a perspective view showing a first embodiment of a wheelchair with a headrest / table combined member according to the present invention.
The wheelchair 10 with a headrest / table combination member is provided with left and right drive wheels 12, 12 on the left and right sides of the rear portion of the frame 11, and the left and right drive wheels 12, 12 are each provided with a hand rim 13 (the right hand rim is not shown). The left and right casters 14 and 14 are provided in front of the left and right drive wheels 12 and 12, the left and right seat pipes 15 and 15 of the frame 11 are provided with seats 16, and the left and right elbow rest pipes 17 and 17 of the frame 11 are respectively provided. The arm rests 18 and 18 are provided, the leg rests 21 are provided on the left and right leg pipes 19 and 19 of the frame 11, the foot plates 22 and 22 are provided at the lower ends of the left and right leg pipes 19 and 19, respectively. Back pipes 23, 24 are provided with back portions 25, and left and right grips 2 are provided on these back pipes 23, 24. , It is provided with a 26.

  In the wheelchair 10 with a headrest / table combination member, a right headrest pipe 31 is erected along the right backrest pipe 23 at the right rear portion of the frame 11, and a rotation portion 33 is provided at the left rear portion of the frame 11. By providing the left headrest pipe 35 on the left headrest pipe 35, the left headrest pipe 35 can be tilted forward from the position leaning on the left backrest pipe 24 to the elbow rest 18, and a turning part 38 is provided in the middle of the left headrest pipe 35. 38, the left end 41a of the headrest 41 also serving as a table is fixed to the upper left headrest pipe 36 on the upper side via a mounting bracket 42, and the right end 41b of the headrest 41 is connected to the first lock portion 43 on the upper end 32 side of the right headrest pipe 31. It is provided so as to be freely removable.

FIG. 2 is a side view showing the first embodiment according to the present invention.
The left back pipe 23 is provided with a second lock portion 45. The second lock portion 45 holds the left headrest pipe 35 at a position leaning on the left backrest pipe 23 by bringing the left headrest pipe 35 into a locked state.
On the other hand, by releasing the locked state of the second lock portion 45, the left headrest pipe 35 is tilted forward as indicated by an arrow to the elbow rest portion 18 with the rotating portion 33 as an axis.

By providing the turning portion 38 in the middle of the left headrest pipe 35, the upper left headrest pipe 35 on the upper side of the turning portion 38 is turned in the arrow direction by the turning portion 38.
The left and right backrest pipes 23 and 24 are provided with left and right grips 26 and 26 (see also FIG. 1), so that an attendant (not shown) holds the left and right grips 26 and 26, and is used as a headrest / table. It is possible to push the wheelchair 10 with a member.

FIG. 3 is a perspective view showing the rotating portion of the first embodiment according to the present invention.
A rotation part 33 is provided on the left rear part of the frame 11. The rotating portion 33 is provided with a base 47 at the left rear portion of the frame 11, a substantially U-shaped support portion 48 is attached to the base 47, and a lower end portion 37 a of the lower left headrest pipe 37 is rotated to the support portion 48 via a pin 49. It is attached freely.
Therefore, the lower left headrest pipe 37 is configured to tilt forward as indicated by an arrow about the pin 49 as an axis.

The rotating portion 33 is provided with a lower insertion hole 51, 51 (the left insertion hole 51 is not shown), a middle insertion hole 52, 52, and an upper insertion hole 53, 53 in the support portion 48. Form.
By inserting the stopper pin 54 into each of the insertion holes 51, 52, 53, the lower left headrest pipe 37 is brought into contact with the stopper pin 54 and the forward tilt angle of the left headrest pipe 35 is adjusted.

For example, by inserting the stopper pin 54 into the lower insertion holes 51, 51, the forward tilt angle of the left headrest pipe 35 is adjusted to 85 °, and by inserting the stopper pin 54 into the middle insertion holes 52, 52, The forward tilt angle of the left headrest pipe 35 is adjusted to 80 °.
Further, the front tilt angle of the left headrest pipe 35 is adjusted to 75 ° by inserting the stopper pin 54 into the upper insertion holes 53, 53.

In the present embodiment, an example in which the stopper pin 54 is not inserted into all the insertion holes 1, 52, 53 and the forward tilt angle of the left headrest pipe 35 is adjusted to 90 ° will be described.
By setting the forward tilt angle of the left headrest pipe 35 to 90 °, the left headrest pipe 35 is placed on the left elbow rest 18 when the left headrest pipe 35 is tilted forward.

4 is a cross-sectional view taken along line 4-4 of FIG.
The left back pipe 23 is provided with a second lock portion 45. The second lock portion 45 has a substantially U-shaped receiving portion 55 attached to the left backrest pipe 23, and a locking lever 56 is rotatably attached to the left piece 55 a of the receiving portion 55 via a pin 57. The attachment wire 56 is attached to the attachment hole 56 a, and the engagement claw 59 is provided on the right piece 55 b of the receiving portion 55.

According to the second lock portion 45, the lower left headrest pipe 37 is pressed by the locking wire 58 by holding the locking lever 56 at the lock position P <b> 1 while the locking wire 58 is hooked on the locking claw 59. wear.
Accordingly, the lower left headrest pipe 37 is held in a state of being pressed against the receiving portion 55.
Here, when the locking lever 56 is disposed at the lock position P1, the locking wire 58 is in a position where it has passed over the pin 57 (that is, an overcenter position). Thereby, the locking wire 58 plays a role of holding the locking lever 56 at the lock position P1.

On the other hand, the locking wire 56 is removed from the locking claw 59 by swinging the locking lever 56 around the pin 57 to the unlocking position P2 as indicated by an arrow.
This releases the holding of the lower left headrest pipe 37 by the locking wire 58 and allows the lower left headrest pipe 37 to tilt forward as indicated by an arrow toward the front of the wheelchair 10 (see FIG. 1). (See also FIG. 3).

FIG. 5 is an enlarged view of part 5 of FIG.
A turning portion 38 is provided in the middle of the left headrest pipe 35. The swivel portion 38 forms an enlarged diameter portion 61 at the upper end portion of the lower left headrest pipe 37, and a lower end portion 36 a of the upper left headrest pipe 36 is inserted into the enlarged diameter portion 61 via a bearing (for example, a needle bearing) 62. Deploy.
As a result, the upper left headrest pipe 36 can be turned in the arrow direction about the center of the upper left headrest pipe 36.

The turning portion 38 includes a fixed stopper 76 in the enlarged diameter portion 61 and a movement stopper 77 at the lower end portion 36 a of the upper left headrest pipe 36.
The fixed stopper 76 and the moving stopper 77 will be described in detail with reference to FIG.

6 is a view taken along arrow 6 in FIG.
A first lock portion 43 is provided at the right end 41 b of the headrest 41. The first lock portion 43 has a substantially L-shaped support bracket 66 attached to the table surface 63 side of the right end 41 b of the headrest 41, and a pressing piece 68 attached to the support bracket 66 via a connecting pin 67. A locking lever 69 is rotatably mounted via a pin 71, a locking wire 73 is mounted in a mounting hole 72 of the locking lever 69, and a locking claw 74 is provided on the headrest surface 64 side of the right end 41b of the headrest 41. It is a thing.

According to the first lock portion 43, the upper end 32 of the right headrest pipe 31 is held by the pressing piece 68 by holding the locking lever 69 at the lock position P3 in a state where the locking wire 73 is hooked on the locking claw 74. Press down.
As a result, the right end 41 b of the headrest 41 is held at the upper end 32 of the right headrest pipe 31.

  Here, when the locking lever 69 is disposed at the lock position P3, the locking wire 73 is over the pin 71 (that is, over-center position). Thereby, the locking wire 73 plays a role of holding the locking lever 69 at the lock position P3.

On the other hand, the latching wire 73 is removed from the latching claw 74 by swinging the latching lever 69 around the pin 71 to the unlocking position P4 as shown by the arrow.
Accordingly, the holding of the upper end 32 of the right headrest pipe 31 by the pressing piece 68 is released, and the right end 41 b of the headrest pipe 41 can be detached from the upper end 32 of the right headrest pipe 31.

Next, the effect | action of the wheelchair 10 with a table / headrest is demonstrated based on FIGS.
FIGS. 7A and 7B are diagrams illustrating an example of turning the headrest according to the first embodiment.
In (a), the locking lever 73 of the first lock portion 43 is swung to the unlocking position P4 (see FIG. 6) as shown by the arrow a with the pin 71 (see FIG. 6) as an axis, so that the locking wire 73 is moved. Remove from the locking claw 74.

Thereby, the right end 41 b of the headrest 41 is removed from the upper end 32 of the right headrest pipe 31.
In this state, the right end 41b of the headrest 41 is moved rearward, and the headrest 41 is swung as indicated by an arrow b about the upper left headrest pipe 36.

In (b), the moving stopper 77 provided on the lower end portion 36 a of the upper left headrest pipe 36 abuts on the fixed stopper 76 provided on the enlarged diameter portion 61 of the turning portion 38.
When the moving stopper 77 contacts the fixed stopper 76, the headrest 41 is held at the retracted position P5.

FIGS. 8A and 8B are diagrams illustrating an example in which the left headrest pipe of the first embodiment is tilted forward.
In (a), the headrest 41 is retracted from the user's head (not shown) by holding the headrest 41 in the retracted position P5.
Next, the locking wire 56 is locked by swinging the locking lever 56 of the second lock portion 45 about the pin 57 (see FIG. 4) to the unlocking position P2 (see FIG. 4) as indicated by the arrow c. Remove from the nail 59 (see FIG. 4).

As a result, the lower left headrest pipe 37 held by the second lock portion 45 is released.
In this state, the lower left headrest pipe 37 is tilted forward as indicated by an arrow d about the pin 49 of the rotating portion 33 as an axis.

In (b), the lower left headrest pipe 37 is tilted forward to place the lower left headrest pipe 37 on the left elbow rest 18 on the left side.
After placing the lower left headrest pipe 37 on the left elbow rest 18 on the left side, the right end 41b of the headrest 41 is lifted, and the headrest 41 is swung around the upper left headrest pipe 36 as shown by an arrow d.

FIGS. 9A and 9B are diagrams illustrating an example in which the headrest according to the first embodiment is arranged at a use position as a table.
In (a), the right end 41b of the headrest 41 is placed on the right elbow rest 18 by swinging the headrest 41 as shown by an arrow e (see FIG. 8B).
In this state, the headrest 41 is set substantially horizontally so that the table surface 63 faces upward.

  (B) shows the state which put the right end 41b side of the headrest 41 on the right elbow rest part 18. FIG. By placing the support bracket 66 of the headrest 41 on the right elbow rest 18, the bent piece 66 a of the support bracket 66 and the right end 41 b of the headrest 41 are adjacent to both side surfaces 18 a and 18 a of the right elbow rest 18. Deploy.

As a result, the bent piece 66a and the right end 41b of the headrest 41 are brought into contact with both side surfaces 18a and 18a of the elbow rest portion 18, thereby preventing the headrest 41 from moving in the left-right direction.
Therefore, usability when using the headrest 41 as a table can be enhanced.

  That is, the wheelchair 10 with a table / headrest is provided with a backrest portion 25 on the left and right backrest pipes 23 and 24 constituting a part of the frame 11, and the elbow rest pipes 17 and 24 are forwardly directed from the backrest pipes 23 and 24. 17, elbow rests 18, 18 are provided on the elbow rest pipes 17, 17, and left and right headrest pipes 35, 31 are provided upward on the left and right backrest pipes 23, 24. The left end 41a (one end) of the headrest 41 also serving as a table is provided on one of the headrest pipes 35 and 31, and the right end (the other end) 41b of the headrest 41 is provided on the right headrest pipe 31 (the other of the headrest pipes 35 and 31). The headrest 41 is attached to the left headrest pipe 35 on the head (see FIG. A pivotable pivot portion 38 to a position retracted from not) was provided, on the frame 11, in which the left headrest pipe 35 provided with the elbow portion 18 to a forward tiltable pivoting portion 33.

  According to the wheelchair 10 with a table / headrest of the first embodiment, left and right headrest pipes 35 and 31 are provided on the left and right backrest pipes 23 and 24, and a right end 41b of the headrest 41 is detachably provided on the right headrest pipe 31. It was. Then, a turning portion 38 is provided on the left headrest pipe 35.

Therefore, after removing the other end 41b of the headrest 41 from the right headrest pipe 31, it is possible to turn the headrest 41 to a position where it is retracted from the head by the turning portion 38.
Accordingly, when the left headrest pipe 35 is tilted forward to the left elbow rest portion 18 by the rotating portion 33 provided on the frame 11, it is not necessary to lift the headrest 41 above the head.

Thus, the headrest 41 can be easily retracted from the head by simply removing the other end 41 b of the headrest 41 from the right headrest pipe 31 and turning the headrest 41.
Therefore, the headrest 41 can be moved to a position where it is used as a table by a simple operation.

  Next, second to third embodiments will be described with reference to FIGS. In the second to third embodiments, the same members as those in the wheelchair 10 with a table / headrest of the first embodiment are denoted by the same reference numerals and description thereof is omitted.

First, a second embodiment will be described.
FIG. 10 is a perspective view showing a second embodiment of the wheelchair with a headrest / table combined member according to the present invention.
The wheelchair 80 with a headrest / table combination member has a fixed headrest pipe 81 erected along the right backrest pipe 24 at the right rear portion of the frame 11, and a cylindrical body 82 is fitted to the fixed headrest pipe 81 so as to be movable up and down. A movable headrest pipe 83 is detachably inserted into the support cylinder 82, a rotating portion 85 is provided at the left rear portion of the frame 11, and a left headrest pipe 86 is provided at the rotating portion 85, whereby the left headrest pipe 86 is fixed to the stopper 87. The swivel portion 38 is provided in the middle of the left headrest pipe 86, and the left end 41a of the headrest 41 serving also as a table is connected to the upper left headrest pipe 88 above the swivel portion 38. It is fixed via the mounting bracket 42 and is attached to the upper end 83a of the moving headrest pipe 83. The right end 41b of the dressed 41 is obtained by fixing through the mounting bracket 42.

The fixed headrest pipe 81 and the moving headrest pipe 83 constitute a right headrest pipe 84.
The left headrest pipe 86 is obtained by attaching an upper left headrest pipe 88 to a lower left headrest pipe 89 via a turning portion 38 so as to be turnable.
The lower left headrest pipe 89 is a member having a lower end portion 89 a attached to the surface side of the endless track 91 of the rotating portion 85.
The stopper 87 is a member attached to the left backrest pipe 23.

FIG. 11 is a cross-sectional view for explaining a support cylinder according to a second embodiment of the present invention.
The support cylinder 82 is a member that can be fitted to the left headrest pipe 81 from the lower end 82 a side so as to be movable up and down, and that the upper end 82 b side can be removably fitted to the lower end 83 b of the moving headrest pipe 83.
When the upper end 82 b side of the support cylinder 82 is fitted to the lower end 83 b of the moving headrest pipe 83, the lower end 83 b of the moving headrest pipe 83 is placed on the upper end 81 a of the fixed headrest pipe 81.

A bracket 93 is provided on the support cylinder 82, and a lock lever 95 is swingably attached to the bracket 93 via a pin 94. A cam 96 is provided at the base of the lock lever 95.
The support cylinder 82, the bracket 93, the pin 94, the lock lever 95 and the cam 96 constitute a third lock part 97.

By disposing the lock lever 95 at the lock position P6, the left headrest pipe 81 is pressed by the cam 96 (as shown).
Accordingly, the support cylinder 82 is held at the fitting position P8, and the upper end 82 side of the support cylinder 82 is fitted to the lower end 83b of the moving headrest pipe 83. Therefore, the movable headrest pipe 83 is supported by the support cylinder 82.

On the other hand, the lock lever 95 is swung as indicated by an arrow from the lock position P6 to the lock release position P7 with the pin 94 as an axis, thereby releasing the pressing of the left headrest pipe 81 by the cam 96.
Accordingly, the support cylinder 82 is lowered to the fitting release position P9 as indicated by an arrow, and the upper end 82 side of the support cylinder 82 is disposed below the lower end 83b of the moving headrest pipe 83. Therefore, the support of the moving headrest pipe 83 by the support cylinder 82 is released.

  Returning to FIG. 10, the rotation unit 85 attaches a base 98 to the left backrest pipe 23, and an upper large-diameter roller 99 is rotatably provided at the upper end of the base 98, and a lower large-diameter roller 101 is disposed at the lower end of the base 98. The rollers 102 and 102 are rotatably provided between the upper large-diameter roller 99 and the lower large-diameter roller 101, and the upper large-diameter roller 99, the lower large-diameter roller 101 and the rollers 102 and 102 are infinitely movable. 91 is wound, a protrusion 103 is provided on the back surface of the infinite mobile belt 91, the protrusion 103 is engaged with a meshing portion (not shown) of the upper large-diameter roller 99, and the lower left headrest pipe is formed on the surface of the infinite mobile belt 91. The lower end 89a of 89 is attached.

According to the rotating unit 85, the lower left headrest pipe 89 (left headrest pipe 86) is tilted forward by rotating the infinite mobile belt 91.
Further, by engaging the projections 103 of the infinite mobile belt 91 with the upper large-diameter roller 99, when the lower left headrest pipe 89 is disposed at the standing position in FIG. Even if it is applied, the shift of the infinite mobile belt 91 is prevented.

A stopper means 105 is provided in front of the rotating portion 85. The stopper means 105 has a support portion 106 attached to the left elbow rest pipe 17 and a stopper lever 108 slidably disposed in a through hole 107 of the support portion 106.
By pushing the stopper lever 108 toward the rotating portion 85, the end 108 a of the stopper lever 108 is pressed against the infinite mobile belt 91, thereby preventing the endless mobile belt 91 from rotating.

Next, the effect | action of the wheelchair 80 with a table / headrest is demonstrated based on FIGS.
FIGS. 12A and 12B are diagrams illustrating an example of turning the headrest according to the second embodiment.
In (a), the lock lever 95 of the support cylinder 82 is swung as shown by the arrow f from the lock position P6 shown in FIG. 11 to the lock release position P7 with the pin 94 (see also FIG. 11) as an axis.
The pressing of the upper end 81a of the left headrest pipe 81 by the cam 96 (see FIG. 11) is released, and the support cylinder 82 is lowered to the fitting release position P9 (see FIG. 11) as shown by the arrow g.

As a result, the support cylinder 82 is lowered to below the moving headrest pipe 83 to release the support of the moving headrest pipe 83 by the support cylinder 82.
In this state, the right end 41b of the headrest 41 is moved backward. The upper left headrest pipe 88 rotates at the turning portion 38, and the headrest 41 swings as indicated by the arrow h about the upper left headrest pipe 88.

In (b), the movement stopper 77 (see FIG. 7B) of the upper left headrest pipe 88 abuts on the fixed stopper 76 (see FIG. 7B) of the lower left headrest pipe 89.
When the movement stopper 77 contacts the fixed stopper 76, the headrest 41 is held at the retracted position P10.
By holding the headrest 41 in the retracted position P10, the headrest 41 is retracted from the user's head (not shown).

  Next, the stopper lever 108 is rotated as indicated by an arrow i and then moved forward as indicated by an arrow j. By the operation of the stopper lever 108, the pin 111 is moved along the guide hole 112, and the tip end 108 a of the stopper lever 108 is separated from the endless track body 91 of the rotating portion 85.

FIG. 13 is a diagram illustrating an example in which the headrest according to the second embodiment is arranged at a use position as a table.
In (a), by moving the left headrest pipe 86 in the forward direction, the endless track 91 of the rotating portion 85 rotates. As the endless track 91 rotates, the left headrest pipe 86 is moved as shown by an arrow k.
Thereby, the left headrest pipe 86 is tilted forward and placed on the left elbow rest 18 on the left side.

After placing the left headrest pipe 86 on the left elbow rest 18 on the left side, the stopper lever 108 is operated to press the tip 108a (see FIG. 12B) against the endless track body 91 of the rotating portion 85, and the endless track. The body 91 is prevented from rotating.
In this state, the right end 41b of the headrest 41 is lifted. The upper left headrest pipe 88 rotates through the turning portion 38 and swings the headrest 41 toward the right left elbow rest 18 around the upper left headrest pipe 88.

In (b), by swinging the headrest 41 toward the right left elbow rest 18, the right end 41 b side of the headrest 41 is placed on the right elbow rest 18.
In this state, the headrest 41 is set substantially horizontally so that the table surface 63 faces upward, and the headrest 41 is used as a table.

  That is, the wheelchair 80 with a table / headrest is provided with a backrest portion 25 on the left and right backrest pipes 23 and 24 constituting a part of the frame 11, and the elbow rest pipe 17, forwardly from the backrest pipes 23 and 24. 17, elbow rests 18, 18 are provided on the elbow support pipes 17, 17, left and right headrest pipes 86, 84 are provided upward on the left and right backrest pipes 23, 24, and the left headrest pipe 86 (these The left end 41a (one end) of the headrest 41 also serving as a table is provided on one of the headrest pipes 35 and 31, and the right end (the other end) 41b of the headrest 41 is provided on the right headrest pipe 84 (the other of the headrest pipes 35 and 31). The headrest 41 is attached to the left headrest pipe 86 on the head (see FIG. A revolving part 38 capable of revolving to a retreated position, and a revolving part 85 capable of tilting the left headrest pipe 86 forward to the elbow rest 18 on the frame 11 (ie, the left backrest pipe 23). It is a thing.

  According to the wheelchair with table / headrest 80 of the second embodiment, the left and right headrest pipes 23 and 24 are provided with left and right headrest pipes 86 and 84, and the right headrest pipe 84 is detachably provided with the right end 41b of the headrest 41. It was. And the turning part 38 was provided in the left headrest pipe 86.

Therefore, after removing the other end 41 b of the headrest 41 from the right headrest pipe 84, it is possible to turn the headrest 41 to a position where it is retracted from the head by the turning portion 38.
Accordingly, when the left headrest pipe 86 is tilted forward to the left elbow rest 18 by the rotating portion 85 provided in the frame 11, it is not necessary to lift the headrest 41 above the head.

In this manner, the headrest 41 can be easily retracted from the head by simply removing the other end 41 b of the headrest 41 from the right headrest pipe 84 and turning the headrest 41.
Therefore, the headrest 41 can be moved to a position where it is used as a table by a simple operation.

Next, a third embodiment will be described.
FIG. 14 is a perspective view showing a third embodiment of the wheelchair with a headrest / table combined member according to the present invention.
In the wheelchair 120 with a headrest / table combination member, the left and right back pipes 121 and 122 at the rear of the frame 11 are provided with a back portion 25, the left top 26 is provided with a left grip 26, and a right back pipe. The right grip 26 is provided at the upper end 122 a of 122.

  In the wheelchair 120 with a headrest / table member, the left headrest pipe 123 is erected on the upper end 121 a of the left backrest pipe 121, the right headrest pipe 124 is erected on the upper end 122 a of the right backrest pipe 122, and the left headrest pipe 123 The left end 41a of the headrest 41 is detachably provided via the first lock portion 43 on the left side, and the right end 41b of the headrest 41 is detachably provided on the right headrest pipe 124 via the first lock portion 43 on the right side. is there.

Next, the effect | action of the wheelchair 120 with a table / headrest is demonstrated based on FIGS.
The locking lever 69 of the left first locking portion 43 is swung to the unlocking position P4 (see FIG. 6) as shown by the arrow l (lowercase letter of the alphabet L) with the pin 71 (see FIG. 6) as an axis. The wire 73 is removed from the locking claw 74.
Thereby, the left end 41 a of the headrest 41 is removed from the left headrest pipe 123.

Similarly, by swinging the locking lever 69 of the first lock 43 on the right side to the unlocking position P4 (see FIG. 6) as shown by the arrow m about the pin 71 (see FIG. 6), the locking wire 73 is Remove from the locking claw 74.
Thereby, the right end 41 b of the headrest 41 is removed from the right headrest pipe 124.
Thereby, the headrest 41 is removed from the left and right headrest pipes 123 and 124 as indicated by an arrow n.

FIG. 15 is a diagram illustrating an example in which the headrest according to the third embodiment is arranged at a use position as a table.
The headrest 41 removed from the left and right headrest pipes 123 and 124 is placed on the left and right elbow rests 18 and 18.
That is, the support bracket 66 provided at the left end 41 a of the headrest 41 is placed on the left elbow rest 18. In addition, the support bracket 66 provided at the right end 41 b of the headrest 41 is placed on the right elbow rest 18.
In this state, the headrest 41 is set substantially horizontally so that the table surface 63 faces upward.

  That is, in the wheelchair 120 with a headrest / table combination member, the left and right backrest pipes 121 and 122 constituting a part of the frame 11 are provided with the backrest portions 25, and the elbow rest pipes are directed forward from the backrest pipes 121 and 122. 17 and 17, elbow rests 18 and 18 are provided on the elbow support pipes 17 and 17, headrest pipes 123 and 124 are provided upward on the left and right backrest pipes 23 and 24, and left and right headrest pipes 123 and 124 are provided. Further, the headrest 41 also serving as a table is detachably provided, and the headrest 41 removed from the left and right headrest pipes 123 and 124 can be placed on the left and right elbow rests 18 and 18.

According to the wheelchair 120 with a table / headrest of the third embodiment, the headrest pipes 123 and 124 are provided on the left and right backrest pipes 121 and 122, and the headrest 41 is detachably provided on the left and right headrest pipes 123 and 124.
Therefore, by removing the headrest 41 from the left and right headrest pipes 123 and 124, the headrest 41 can be moved to the elbow rests 18 and 18 without lifting the headrest 41 to above the head.

And the headrest 41 is used as a table by mounting the headrest 41 removed from the left and right headrest pipes 123 and 124 on the elbow rests 18 and 18.
In this way, the headrest 41 can be tilted forward by simply removing the headrest 41 from the left and right headrest pipes 123 and 124 without lifting the headrest 41 above the head.
Therefore, the headrest 41 for leaning the head can be moved to a position to be used as a table by a simple operation.

  In the first and second embodiments, the right end 41b of the headrest 41 is detachably provided on the right headrest pipes 31, 84, and the headrest 41 is mounted around the upper left headrest pipes 36, 88 of the left headrest pipes 35, 86. Although the example of retracting from the head has been described, the left end 41a of the headrest 41 can be detachably provided on the left headrest pipes 31, 86, and the headrest 41 can be retracted from the head around the right headrest pipes 31, 84. is there.

Moreover, the structure of the turning part 38 illustrated in the said 1st, 2 embodiment is not limited to this, The thing of another structure can also be used.
Furthermore, the structure of the rotation parts 33 and 85 illustrated in the first and second embodiments is not limited to this, and other structures can be used.

Further, the configurations of the first and second lock portions 43 and 45 exemplified in the first embodiment are not limited to this, and other configurations can also be used.
Furthermore, the configuration of the third lock portion 97 illustrated in the third embodiment is not limited to this, and other configurations can also be used.
Also, the configuration of the left and right first lock portions 43 exemplified in the third embodiment is not limited to this, and other configurations can also be used.

  Furthermore, the configuration of the stopper means 105 exemplified in the second embodiment is not limited to this, and other configurations can also be used.

  The wheelchair with a headrest / table combination member of the present invention is suitable for a wheelchair in which an elbow rest pipe is provided forward from the frame and an elbow rest section is provided on the elbow rest pipe.

It is a perspective view which shows 1st Embodiment of the wheelchair with a headrest / table combined member which concerns on this invention. 1 is a side view showing a first embodiment according to the present invention. 1 is a side view showing a first embodiment according to the present invention. 1 is a side view showing a first embodiment according to the present invention. 1 is a side view showing a first embodiment according to the present invention. 1 is a side view showing a first embodiment according to the present invention. It is a figure explaining the example which turns the headrest of 1st Embodiment. It is a figure explaining the example which inclines the left headrest pipe of 1st Embodiment forward. It is a figure explaining the example which arrange | positions the headrest of 1st Embodiment in the use position as a table. It is a perspective view which shows 2nd Embodiment of the wheelchair with a headrest / table combined member which concerns on this invention. It is sectional drawing explaining the support cylinder of 2nd Embodiment which concerns on this invention. It is a figure explaining the example which turns the headrest of 2nd Embodiment. It is a figure explaining the example which arrange | positions the headrest of 2nd Embodiment in the use position as a table. It is a perspective view which shows 3rd Embodiment of the wheelchair with a headrest / table combined member which concerns on this invention. It is a figure explaining the example which arrange | positions the headrest of 3rd Embodiment in the use position as a table. It is a figure explaining the conventional basic composition.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,80,120 ... Wheelchair with headrest / table combined member, 11 ... Frame, 17 ... Elbow rest pipe, 18 ... Elbow rest, 23, 121 ... Left backrest pipe, 24, 122 ... Right backrest pipe, 25 ... backrest part, 31, 84 ... right headrest pipe (the other of these headrest pipes), 33, 85 ... rotating part, 35, 86 ... left headrest pipe (one of these headrest pipes), 38 ... turning part, 41 ... headrest, 41a ... left end (one end) of headrest 41, 41b ... right end (other end) of headrest 41, 123 ... left headrest pipe, 124 ... right headrest pipe.

Claims (2)

In a wheelchair in which a backrest part is provided on the left and right backrest pipes constituting a part of the frame of the wheelchair, an elbow rest pipe is provided forward from the backrest pipe, and an elbow rest section is provided on the elbow rest pipe.
In the left and right backrest pipes, headrest pipes are provided facing upwards,
One of these headrest pipes is provided with one end of a headrest that also serves as a table,
On the other of these headrest pipes, the other end of the headrest is detachably provided,
The one headrest pipe is provided with a turning portion capable of turning to a position where the headrest is retracted from the head,
A wheelchair with a table / headrest, wherein the frame is provided with a turning portion capable of tilting the one headrest pipe forward to the elbow rest. In a wheelchair in which a backrest part is provided on the left and right backrest pipes constituting a part of the frame of the wheelchair, an elbow rest pipe is provided forward from the backrest pipe, and an elbow rest section is provided on the elbow rest pipe.
In the left and right backrest pipes, headrest pipes are provided facing upwards,
The left and right headrest pipes are detachably provided with headrests that also serve as tables,
A wheelchair with a headrest / table combination member characterized in that the headrest removed from the left and right headrest pipes can be placed on the elbow rest.

Images