JP2007014685A - Walker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a walker capable of being compactly folded without canceling the setting once the horizontal width is set. <P>SOLUTION: The walker comprises a pair or left and right pipe frames 2 and 3 with armrests 6 and casters 8, foldable crossing pipes 4 to connect the pipe frames, and a front plate 7 to connect the left and right armrests 6 in such a way that the distance between the armrests can be adjusted. A hanging pipe 25, oscillatably attached to the upper end of each crossing pipe 4 is guided and inserted into a vertical pipe 12 of each pipe frame. The vertical motions of the lower ends of the crossing pipes 4 are guided by the vertical pipes 11 and 12 of the pipe frames, and the lower ends of the crossing pipes are fixed to the vertical pipes 11 and 12 at arbitrary positions with fixture pins 22. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a walker. More specifically, the present invention relates to a walker for a person who is difficult to walk, for example, to walk while keeping a part of his / her weight.

  Conventionally, a walker is generally formed in a frame shape or a box shape, and four, five or six casters are attached to the lower end thereof. All the casters or the front casters are configured to rotate around the vertical axis. This is to facilitate the direction change of the walker. In addition, a J-shaped armrest made of a cushion material for the user to put his arms and hands on is attached to the upper end of the main body.

  As such a walker, for example, one disclosed in Patent Document 1 is known. This walker has a pair of left and right lower frames with casters on the front and back of its lower end, a pair of left and right upper frames with cushions (armrests) on its upper end, and four vertical left and right fronts that connect the lower and upper frames. It has a pipe and a crossbar that can be opened and closed to connect the left and right front vertical pipes.

  A pipe extending downward from the upper frame is internally fitted into the vertical pipe, and the upper frame is moved up and down to adjust the height position of the armrest and fix it with screws. Further, the lower end of the cross bar is attached to the lower frame so as to be rotatable around a front-rear axis. The upper end of the cross bar slides up and down along the vertical pipe and is selectively fixed to one of a plurality of holes formed along the vertical pipe by a fixing pin. The left and right upper frames can be fixed by changing the interval by operating the width adjusting plate, pins and fixing screws. These adjust the width of the walker.

Also, when not using or storing the walker, loosen the fixing screw of the width adjustment plate that connects the left and right upper frames, and then close the crossbar so that it is vertically long to minimize the width. Can be folded. However, in this walker, when the cross bar is closed and the whole is folded, the fixing pin must be removed from the upper end of the cross bar to release the fixing to the vertical pipe. On the other hand, when adjusting to widen the lateral width of the walker, the space between the front ends of the J-shaped armrest is widened. Conversely, when adjusting to reduce the lateral width, the front ends of the J-shaped armrests come into contact with each other, so the adjustable range is limited.
Japanese Patent Laid-Open No. 2002-126023

  The present invention has been made to solve such a problem. Once the width of the walker is set according to the body shape of the user, the setting is canceled even when the walker is folded and stored when not in use. It is an object of the present invention to provide a walker that can be performed without any problems, and a walker that does not need to worry about separation and contact between the left and right armrests even when adjusting the lateral width.

  The walker according to the present invention includes a pair of left and right main body constituent members each having an armrest at an upper portion thereof and a caster at a lower end thereof, a cross member having a foldable cross shape that connects the main body constituent members, and the left and right A connecting member that connects the armrests so that the distance between the armrests can be adjusted, and the upper end of the cross member is connected to the main body constituent member so as to be movable up and down, and the lower end is in a vertical position relative to the main constituent member. Connected to allow adjustment.

  According to such a configuration, after setting the upper and lower positions of the lower end of the cross member relative to the main body constituting member, the upper end of the cross member rises when the pair of main body constituting members are brought closer to each other. The vessel can be easily folded. The main body constituting member may be a frame shape or a panel shape, or a combination thereof.

  A first guide member that guides the vertical movement of the lower end of the cross member relative to the main body constituent member and a second guide member that guides the vertical movement of the upper end of the cross member relative to the main body constituent member are disposed in the main body constituent member. can do.

  A short tube extending in the front-rear direction is disposed at the lower end of the cross member, and an end portion of the short tube is configured to move up and down while being in sliding contact with the main body constituting member. It is possible to provide a vertical position setting mechanism capable of forming a groove extending in the vertical direction with which the end portion engages and fixing the short pipe at a predetermined interval.

  A rod-like member that can swing in the lateral direction is suspended from the upper end of the cross member, and the second guide member can be formed of a tubular member that accommodates the rod-like member so as to move up and down. By doing so, the upper end of the cross member moves upward when a force is applied to bring the main body constituent members closer to each other, so that the cross member can be closed smoothly without requiring other operations, and the main body can be easily operated. Folded.

  Another walker according to the present invention includes a pair of left and right main body constituent members each having an armrest at an upper portion thereof and a caster at a lower end thereof, a main body width adjusting member for connecting the main body constituent members so as to be separated and close to each other, A foldable connecting member that connects the armrests of the armrests so that the distance between the armrests is adjustable, and the connecting members overlap the positioning members disposed at the armrests and at least a part of both positioning members. A receiving member, and is configured to expand and contract depending on the degree of overlap between the positioning member and the receiving member.

  As described above, when the main body constituent members are separated from each other, the connecting member expands and contracts accordingly, and when the main body is folded, the connecting member is also folded and responds accordingly. It should be noted that the positioning member and the receiving member overlap each other when the both are nested together.

  In another walker according to the present invention, a front plate is disposed on the connecting member, and a pair of left and right receiving members are swingably attached to a central portion of the lower surface of the front plate. It can comprise from a pipe so that a positioning member can fit inside.

  Alternatively, the connecting member is provided with a front plate that can be bent in an inverted V shape from the center thereof, and the receiving member is fixed to each of the left and right sides of the bendable portion on the lower surface of the front plate, This receiving member can also be comprised from a pipe so that the said positioning member can fit inside.

  According to the walker of the present invention, when the width of the walker is set in accordance with the user's body shape, this setting can be performed even when folded and stored compactly. Moreover, according to the walker of the present invention, there is no need to worry about separation and contact between the left and right armrests even when adjusting the lateral width.

  Hereinafter, the present invention will be described in detail based on preferred embodiments with appropriate reference to the drawings.

  FIG. 1 is a perspective view showing an embodiment of a walker according to the present invention. FIG. 2 is a front view of the walker of FIG. FIG. 3 is a side view of the walker of FIG. This walker 1 includes a main body 5 in which a pair of left and right pipe frames 2 and 3 are connected by a cross pipe 4, a pair of left and right armrests 6 attached to the upper end of the main body 5 for placing a person's arm, The connecting member 7 which connects a pair of armrest 6 arrange | positioned at the front end of this armrest 6 and the four casters 8 attached to the four corners of the lower end of the main body 5 are provided. The connecting member 7 includes a plate-like front plate 7a for placing a hand on the upper portion thereof. The left and right pipe frames 2, 3 are main body constituting members constituting the main body. In the present embodiment, the two casters 8 at the front end are configured to be rotatable around the vertical axis, and the two casters 8 at the rear end are disabled. However, the present invention is not limited to this configuration, and all casters 8 may be configured to be rotatable around the vertical axis. The number of casters may be six or more.

  The armrest 6 has a cushion member 6b fixed on a shaft member 6a made of a square tube. In the present embodiment, the connecting member 7 includes the plate-shaped front plate 7a, but is not limited to such a configuration, and may be a member with a cushion attached, for example, like an armrest, instead of the plate 7a.

  As shown by a two-dot chain line in FIG. 2, the cross pipe 4 is configured so that two constituent pipes 4 a and 4 b rotate around the support shaft 9 at the intersection (also referred to as opening and closing of the cross pipe 4). It is configured. By opening and closing the cross pipe 4 having such a configuration, the pair of left and right pipe frames 2 and 3 are separated from each other, so that the cross pipe 4 serves as a width adjusting member of the main body 5. When the left and right pipe frames 2 and 3 move away from each other, the left and right pipe frames 2 and 3 slide in the lateral direction (the width direction of the main body 5) and move away from each other. Yes. This structure will be described later. With this configuration, the width of the main body 5 can be changed. The user enters between the pair of pipe frames 2, 3, puts his arms on the cushion 6 and the front plate 7 a, deposits a part of his body weight, and walks while pushing the walker 1.

  The left and right pipe frames 2, 3 have substantially the same configuration. Therefore, one pipe frame 2 will be described. As shown in FIG. 3, a substantially trapezoidal frame (hereinafter referred to as a trapezoidal frame) 10 forms the lower part of the pipe frame 2. The trapezoidal frame 10 includes an L-shaped front vertical pipe 11, an intermediate vertical pipe 12 substantially parallel to the front vertical pipe 11, a rear pipe 13, a lower horizontal pipe 14, and a horizontally extending U-shaped upper U-shaped pipe 15. It is composed of The front vertical pipe 11 has a flat surface in order to facilitate the guide of the vertical movement of the lower end of the cross pipe 4 and to fix the lower end of the cross pipe 4 by the fixing pin 22. It has the bar 11a which has (refer FIG. 4). The bar member 11a is referred to as a front vertical pipe 11.

  The casters 8 are attached to the front end and the rear end of the lower side of the trapezoidal frame 10. A support pipe 16 extending in the vertical direction is disposed substantially at the center of the upper side of the trapezoidal frame 10. The support pipe 16 and the intermediate vertical pipe 12 are connected by a connection pipe 16a. An upper pole 17 constituting the upper part of the pipe frame 2 penetrates into the support pipe 16. A shaft member 6a of the armrest 6 is fixed to the upper end of the upper pole 17 so as to extend in the front-rear direction. With this configuration, the upper pole 17 and the armrest 6 are supported by the support pipe 16. Both the support pipe 16 and the upper pole 17 have a rectangular cross section.

  As shown in FIG. 3, a plurality of fixing holes 18 are formed at predetermined intervals (for example, equal intervals) along the longitudinal direction (vertical direction) of the upper pole 17. On the other hand, the support pipe 16 is formed with a single positioning hole (not shown) for setting the vertical position of the upper pole 17. The upper pole 17 is moved up and down with respect to the support pipe 16, the desired fixing hole 18 of the upper pole 17 is made to coincide with the positioning hole (not shown) of the support pipe 16, and the fixing pin 19 is inserted into both the matched holes. By inserting and attaching, the height position of the upper pole 17 with respect to the trapezoidal frame 10 is set. In this way, the height position of the armrest 6 is adjusted according to the body shape (mainly the height) of the user.

  As shown in FIGS. 3 and 4, the upper ends of both constituent pipes 4 a and 4 b constituting the cross pipe 4 are bent backward in an L shape. The upper end portion bent rearward is rotatably supported around the longitudinal axis at the upper end position of the intermediate vertical pipe 12 of the trapezoidal frame 10 by a method described later. A fixing short tube 20 extending in the front-rear direction is fixed to the lower end of each of the constituent pipes 4a, 4b. On the other hand, as is apparent from FIG. 2 as well, a plurality of fixing holes 21 are provided in the front vertical pipe 11 of the trapezoidal frame 10 at predetermined intervals (for example, equal intervals) along the longitudinal direction. Is formed. The fixing short pipe 20 extends between the front vertical pipe 11 and the intermediate vertical pipe 12 and engages with a groove-type guide member (first guide member) 23 formed in the intermediate vertical pipe 12. Thus, the vertical movement is guided. The guide member 23 is also formed with a fixing hole 23a (see FIG. 4) at a position corresponding to the fixing hole 21 of the front vertical pipe 11.

  As shown in FIGS. 2 to 4, the lower ends of the constituent pipes 4 a and 4 b (that is, the fixing short pipe 20) are moved up and down with respect to the front vertical pipe 11 and the intermediate vertical pipe 12. The desired fixing hole 21 is aligned with the fixing short tube 20. Then, the fixing pin 22 is inserted and attached from the fixing hole 21 of the front vertical pipe 11 to the fixing hole 23 a of the guide member 23 through the inside of the fixing short tube 20. Thereby, the height position of the lower end of the cross pipe 4 with respect to the trapezoidal frame 10 is set. At this time, as will be described later, since the upper ends of the constituent pipes 4a and 4b are not raised, the open / close position of the cross pipe 4 is set. At the same time, since the pipe frames 4a and 4b are movable in the lateral direction with respect to the front plate 7a by expansion and contraction of the connecting member 7, both the pipe frames 2 and 3 move away from each other (in FIG. 2). (See the part indicated by the two-dot chain line).

  The fixing pin 22 described above has a length that passes through the fixing short tube 20 from the fixing hole 21 of the front vertical pipe 11 and is inserted into the fixing hole of the guide member 23. Thus, since the front and rear ends of the fixing short pipe 20 are restrained by the vertical pipes 11 and 12, the connection between the pipe frames 2 and 3 by the cross pipe 4 is firm, which contributes to improving the rigidity of the main body 5. ing.

  4 and 5 show a support structure for the upper end of the cross pipe 4 by the pipe frames 2 and 3. At the rear end of the horizontal portion 24 bent rearward of the upper ends of the constituent pipes 4a and 4b (represented by 4a), a downwardly extending drooping pipe (which may be a drooping rod) 25 is rotatable around a longitudinal axis. It is drooping in the state. That is, the drooping pipe 25 can swing in the lateral direction (the width direction of the main body 5). The hanging pipe 25 is inserted into the intermediate vertical pipe 12 of the trapezoidal frame 10 from above. Therefore, the upper end of the constituent pipe 4a can be rotated around the axis in the front-rear direction, and can move up and down with respect to the intermediate vertical pipe 12. In other words, the intermediate vertical pipe 12 and the hanging pipe 25 serve as a guide member (second guide member) for guiding the vertical movement of the upper end of the constituent pipe 4a.

  In FIG. 4 and FIG. 5, the state where the drooping pipe 25 is raised is indicated by a two-dot chain line. At the upper end of the intermediate vertical pipe 12, a support piece 26 that receives the rear end of the horizontal portion 24 of the component pipe 4a from below is provided. The support piece 26 has a partial cylindrical shape and is installed on both the left and right sides of the upper end of the intermediate vertical pipe 12. Therefore, the upper end of the cross pipe 4 cannot be lowered downward from the support piece 26, but can be lifted without restriction unless restrained by others.

  Next, a connection mechanism between the connecting member 7 and the pipe frames 2 and 3 will be described with reference to FIGS. 2 and 6 to 8. A pair of assemblies of the armrest 6 and the upper pole 17 are detachably connected to each other by a connecting member 7. As described above, the connecting member 7 has the front plate 7a. A first bracket 27 is disposed at the center of the lower surface of the front plate 7a, and second brackets 28 are disposed on both sides of the first bracket 27 so as to be separated from each other. Both brackets 27 and 28 are formed of parallel plate members spaced apart from each other, and a pin hole 29 is formed there.

  A pair of left and right receiving pipes 30 as receiving members are attached to the first bracket 27 so as to be swingable in the lateral direction by pins 37 serving as support shafts. One positioning hole 31 is formed near the tip of each receiving pipe 30. Further, a third bracket 32 having a pin hole 29 is disposed at an intermediate portion on the lower surface of each receiving pipe 30. The third bracket 32 overlaps with the second bracket 28 and overlaps with the pin holes 29 of the brackets 28 and 32 when the receiving pipe 30 swings and reaches the uppermost position in contact with the front plate 7a. Match. By inserting and fixing the fixing pin 33 into the corresponding pin hole 29, the receiving pipe 30 is held at the uppermost position by the fixing pin 33 from below as indicated by a two-dot chain line in FIG.

  On the other hand, the shaft member 6a of the armrest 6 is fixed perpendicularly to the upper pole 17, and a positioning rod member 34 is attached to the front end of the shaft member 6a so as to be able to swing in the lateral direction. The positioning rod member 34 has a cross-sectional shape that is inserted into the receiving pipe 30. The receiving pipe 30 is formed with a slot 38 for guiding the positioning rod member 34 along the longitudinal direction thereof. The positioning rod member 34 is provided with a guided projection 39 that engages with the slot 38.

  A plurality of fixing holes 35 are formed at predetermined intervals (for example, equal intervals) along the longitudinal direction of the positioning rod member 34. Both the left and right positioning rod members 34 are inserted into the pair of receiving pipes 30, respectively, the positioning holes 31 and the desired fixing holes 35 are aligned, and fixing pins 36 are inserted into the holes 31 and 35 to be fixed. Thus, the interval between the armrests 6 including the upper pole 17 can be adjusted. That is, the distance between the armrests 6 is adjusted by changing the insertion dimension of the positioning rod member 34 into the receiving pipe 30, that is, by extending and contracting the connecting member 7.

  In the present embodiment, the positioning rod member 34 is configured to be nested with respect to the receiving pipe 30, but is not limited to this configuration. As the receiving member, instead of the receiving pipe 30, a rail that engages the positioning rod member 34 so as to overlap and slides in the longitudinal direction may be used.

  As described above, when the height position of the lower end of the cross pipe 4 is set, one of the plurality of fixing holes 21 of the front vertical pipe 11 is selected. In this case, when the lower end of the cross pipe 4 moves a predetermined distance of the fixing hole 21, the distance at which the left and right pipe frames 2 and 3 are separated or approached is the fixing hole 35 formed in the positioning rod member 34. It is made to become equal to the predetermined interval.

  Therefore, when adjusting the mounting position of the connecting member 7 to the left and right upper poles 17 (armrest 6), that is, when adjusting the distance between the armrests 6, the height position of the lower end of the cross pipe 4 described above is adjusted. By performing the adjustment simultaneously, the distance between the left and right pipe frames 2 and 3 can be adjusted. For example, when the lower end of the cross pipe 4 is moved from the lower fixing hole 21 to the upper fixing hole 21, the distance between the left and right trapezoidal frames 10 is increased because the distance between the armrests 6 is adjusted at the same time. The upper end of the cross pipe 4 (and hence the drooping pipe 25) does not rise. Further, when the lower end of the cross pipe 4 is changed from the upper fixing hole 21 to the lower fixing hole 21, the upper end of the cross pipe 4 is lowered because it is in contact with the support piece 26 at the upper end of the intermediate vertical pipe 12. Inevitably, the interval between the left and right trapezoidal frames 10 is inevitably narrowed. In accordance with this, the expansion / contraction position of the connecting member 7 with respect to both upper poles 17 (armrest 6) is adjusted.

  In this way, the body 5 is adjusted to the user's body shape by adjusting the mounting interval of the left and right armrests 6 by the connecting member 7 and adjusting the position of the lower end of the cross pipe 4 relative to the front and middle vertical pipes 11 and 12. It is possible to adjust the width suitable for the width.

  Furthermore, the walker 1 can be folded so that the lateral width is minimized when not in use, such as when stored or transported. And it can fold in the state which set the horizontal width of the main body 5 to the width | variety suitable for a user. That is, the left and right pipe frames 2 and 3 can be brought close to each other and overlapped while the lower end of the cross pipe 4 is pinned to the front and intermediate vertical pipes 11 and 12. This will be described below.

  As shown in FIG. 6, in order to fold this walker 1, first, the fixing pin 33 is removed from one of the left and right second brackets 28 (the left second bracket 28 in FIG. 6). Then, it is only necessary to press the left and right pipe frames 2, 3 so as to approach each other. Then, both the receiving pipes 30 of the connecting member 7 are swung so as to have an inverted V shape with the upper part projecting about the fixing pin 33 of the first bracket 27, and both upper poles 17 (armrest 6) approach. . At the same time, as the left and right pipe frames 2 and 3 approach, the upper end of the cross pipe 4 rises, and as a result, the drooping pipe 25 rises from the intermediate vertical pipe 12. Therefore, the cross pipe 4 is folded without great resistance. Of course, the drooping pipe 25 has such a length that it does not escape upward from the intermediate vertical pipe 12 when the cross pipe 4 is folded. Thus, it is not necessary to extract the positioning rod member 34 from the receiving pipe 30 prior to the folding work. Furthermore, it is not necessary to remove the lower end of the cross pipe 4 from the front vertical pipe 11. Thus, the walker 1 can be folded while the width of the main body 5 is set to a width suitable for the user.

  The fixing pins 19, 22, 33, and 36 used in the above-described embodiment are all known ones that are fixed to the attachment target in a one-touch manner and that the fixing is released. For example, when the push button provided on the fixed pin is pressed, the protrusion of the fixed pin that was engaged in the pin hole to be attached is retracted and released, so that it can be removed from the pin hole. When the button is released, the protrusion engages with the engagement recess in the pin hole and is fixed. However, the present invention is not limited to this configuration, and any known pinning mechanism can be adopted.

  As shown in FIG. 6, when the fixing pin 33 is removed from the second bracket 28 on the left side and the left and right pipe frames 2 and 3 are pressed to approach each other, the front plate 7 a of the connecting member 7 is centered on the right end portion. It rotates so that the left end part jumps upward. However, it is not limited to such a configuration. For example, like the connecting member 40 shown in FIG. 9, the front plate 41 is composed of two left and right plate members 41 a and 41 b, both plate members 41 a and 41 b are connected by a hinge 42, and left and right from the center of the front plate 41. You may comprise so that it may fold in an inverted V shape below. In addition, illustration of an armrest is abbreviate | omitted in FIG.

  With this configuration, the left and right receiving pipes 30 into which the positioning rod members 34 are inserted may be fixed to the lower surfaces of the left and right plate members 41a and 41b, respectively, and do not need to be swingable. Neither the first bracket 27 nor the second bracket 28 is required. However, it is necessary to provide a stopper 43 on the hinge 42 connecting the two plate members 41a and 41b so that the front plate 41 does not fold into a V shape from the horizontal state, and it does not fold into an inverted V shape. Thus, it is desirable to provide a lock mechanism (not shown).

  In the embodiment described above, the left and right main body constituting members constituting the main body 5 are the pipe frames 2 and 3, but are not limited to this configuration. The frame may be composed of a rod member instead of the pipe, and the left and right panels may be composed of a plate material instead of the frame. In that case, even if it is convenient to use a pipe such as the fitting between the upper pole 17 and the support pipe 16 and the fitting between the hanging pipe 25 and the intermediate vertical pipe 12, the pipe may be used only for that portion. Good.

  The present invention can be applied to a walker for a person to walk while depositing and pushing a part of his / her weight, for example.

FIG. 1 is a perspective view showing a walker that is one embodiment of the present invention. FIG. 2 is a perspective view of the walker of FIG. FIG. 3 is a side view of the walker of FIG. 4 is an enlarged perspective view showing a front part of the right pipe frame of the walker of FIG. FIG. 5 is a front view showing a cross pipe of the walker of FIG. FIG. 6 is a front view showing the front plate and the pipe frame being folded of the walker of FIG. FIG. 7 is a front view showing a state in which the front plate is removed from the pipe frame of the walker of FIG. FIG. 8A is a bottom view showing the lower surface of the front plate of the walker of FIG. 1, and FIG. 8B is a bottom view showing a receiving pipe attached to the lower surface of the front plate. c) is a bottom view showing a positioning rod member inserted into the receiving pipe of FIG. FIG. 9 is a front view corresponding to FIG. 6 and showing another example of the front plate of the walker of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Walker 2, 3 ... Pipe frame (main body structural member)
4. Cross pipe (main body width adjustment member)
DESCRIPTION OF SYMBOLS 5 ... Main body 6 ... Armrest 7 ... Connecting member 8 ... Caster 9 ... Support shaft 10 ... Trapezoid frame 11 ... Front vertical pipe 12 ... Intermediate vertical pipe (Two guide members)
13 ... Rear pipe 14 ... Lower horizontal pipe 15 ... Upper U-shaped pipe 16 ... Support pipe 17 ... Upper pole 18 ... Fixing hole 19 ... Fixing pin 20 ... Fixing short pipe 21 ... Fixing hole 22 ... Fixing pin 23 ... Guide member (first guide member)
24 ... Horizontal portion 25 ... Drooping pipe 26 ... Supporting piece 27 ... First bracket 28 ... Second bracket 29 ... Pin hole 30 ... Receiving pipe (receiving member)
31 ... positioning hole 32 ... third bracket 33 ... fixing pin 34 ... positioning rod member 35 ... fixing hole 36 ... fixing pin 37 ... support pin 38 ... Slot 39 ... Guided projection 40 ... Connecting member 41 ... Front plate 42 ... Hinge 43 ... Stopper

Claims (7)

A pair of left and right body components having an armrest at the top and a caster at the bottom,
A cross member that exhibits a foldable cross shape that connects the main body constituent members;
A connecting member that connects the left and right armrests so that the distance between the armrests can be adjusted;
A walker in which the upper end of the cross member is connected to the main body constituent member so as to be movable up and down, and the lower end is connected to the main constituent member so that the vertical position can be adjusted.   A first guide member that guides the vertical movement of the lower end of the cross member relative to the main body constituent member and a second guide member that guides the vertical movement of the upper end of the cross member relative to the main body constituent member are disposed in the main body constituent member. The walker according to claim 1, wherein A short pipe extending in the front-rear direction is disposed at the lower end of the cross member, and the end of the short pipe is configured to move up and down while sliding on the main body constituting member,
3. The first guide member has a vertically extending groove that engages with an end portion of the short pipe and has a vertical position setting mechanism that can fix the short pipe at a predetermined interval. The described walker. A rod-like member swingable in the lateral direction is suspended from the upper end of the cross member,
The walker according to claim 2, wherein the second guide member is constituted by a tubular member that accommodates the rod-like member so as to be movable up and down. A pair of left and right body components having an armrest at the top and a caster at the bottom,
A main body width adjusting member for connecting the main body constituent members so as to be spaced apart from each other; and
A foldable connecting member that connects the left and right armrests so that the distance between the armrests is adjustable;
The connecting member has a positioning member disposed on each armrest, a receiving member that overlaps at least a part of both positioning members, and expands and contracts by changing the overlapping dimension of the positioning member and the receiving member. A walker that is configured to.   The connecting member has a front plate, and a pair of left and right receiving members are swingably attached to a central portion of the lower surface of the front plate, and the positioning member is fitted into the positioning member. The walker according to claim 5, wherein the walker is constructed of a pipe so as to be able to obtain.   The connecting member has a front plate that can be bent in an inverted V shape from the center thereof, and the receiving members are fixed to the left and right sides of the bendable portion on the lower surface of the front plate. The walker according to claim 5, wherein the receiving member is constituted by a pipe so that the positioning member can be fitted therein.

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