JP2007098009A - Rollator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rollator facilitating the attachment/detachment work of a saddle, eliminating the rattling of the saddle and being safely used by a user. <P>SOLUTION: A seat-part unit 4 having the saddle 13 is attachably/detachably provided to a front vertical frame part 9 and an upper frame part 10 of this rollator by an attachment/detachment means 3. The attachment/detachment means 3 has a bending portion 31b provided in the upper part of an attachment base 15 for attaching the seat-part unit 4 and suspendable from the upper frame part 10, and a fixing part 32 fixing the attachment base 15 to the front vertical frame part 9. The fixing part 32 comprises a female screw part 33 projectingly formed in the direction of the seat-part unit in a midway position of the front vertical frame part 9, an fitting hole 35 formed to fit the female screw part 33 therein in the attachment base 15 in a position corresponding to the formation position of the female screw part 33, and a screw member 36 provided in the attachment base 15 to threadedly advancing/retreating relative to the female screw part 33. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a walking vehicle that performs the movement of an elderly person who may fall during walking alone or the walking movement of a patient with a lower limb disorder.

The present applicant has previously created a saddle detachable lifting vehicle disclosed in Patent Document 1 below. This walking vehicle has a configuration in which a saddle is attached and detached by hooking a hole 27 of the base 15 of the elevating part 17 to a pin 26 of the frame 3 and fixing the lower part of the base 15 to the frame 3 with a knob screw 28 (for example, (See FIG. 4).
JP 2005-21327 A

  However, in the walking vehicle disclosed in Patent Document 1, when attaching the elevating unit 17, it is necessary to first insert and hook the small-diameter hole 27 into the pin 26, which is never easy to perform. There wasn't.

  In addition, the lifting portion is rattled by a slight gap interposed between the pin 26 shaft and the coffin hole 27. Further, the force for pressing the base portion 15 in the front direction of the frame 3 is weak at the upper portion of the base 15 in the front-rear direction. The upper part of the base 15 is rattled, and there is a problem that the user who sits on the saddle and performs walking exercise feels anxiety.

  The present invention has been made to solve these various problems, and an object of the present invention is to provide a walking vehicle that makes it easier to attach and detach a saddle and that can be used with peace of mind by a user without the saddle becoming loose. There is to do.

  In order to achieve the above object, the invention described in claim 1 includes a base frame having a space in which a user can enter and exit and capable of traveling on the floor, a saddle on which the user sits on the base frame, and the saddle. A walking vehicle having attachment / detachment means that enables attachment / detachment of a seat unit including an elevation mechanism unit that operates to move up and down, wherein the attachment / detachment means is suspended from the base frame at an attachment base of the elevation mechanism part. It is characterized by comprising a bent portion that can be provided and a fixing portion that fixes the mounting base to the base frame.

  The invention described in claim 2 is characterized in that, in the invention described in claim 1, the bent portion has a wide bowl shape.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the fixing portion is provided so as to protrude from the base frame toward the lifting mechanism portion, and a position corresponding to a position where the female screw portion is formed. The mounting base surface is provided with a fitting hole formed so that the female screw portion can be fitted therein, and a screw member provided on the mounting base so as to be capable of screwing back and forth with respect to the female screw portion.

  According to the first aspect of the present invention, the attaching / detaching means for enabling the attachment and detachment of the seat unit includes a bent portion that can be suspended from the base frame on the attachment base of the elevating mechanism portion, and the attachment base of the walking vehicle. Since the seat unit is suspended from above the base frame via the bent portion, only the operation of fixing the mounting base to the base frame by the fixing portion is provided. The seat unit can be attached and detached very easily.

  Further, by removing the seat unit, it is possible to use it as a walking car that does not have a normal seat unit by a person who is not familiar with the saddle or who does not need the assistance of the saddle.

  According to the second aspect of the present invention, since the bent portion has a wide bowl shape, the seat unit can be stably suspended on the base frame, rattling can be suppressed, and the saddle can be erected on the waist. The anxiety felt by the user performing the operation can be reduced.

  According to the invention of claim 3, the fixing portion is provided with a female screw portion that protrudes from the base frame in the direction of the lifting mechanism portion, and the female screw portion on the mounting base surface at a position corresponding to the formation position of the female screw portion. Since it is configured to include a fitting hole formed so as to be fitted and a screw member provided on the mounting base so as to be capable of screwing back and forth with respect to the female screw portion, the bent portion is suspended from the base frame when the seat unit is attached. After that, by inserting the female screw part into the insertion hole of the mounting base, the seat unit can be temporarily fixed to the base frame, and the screw member can be easily and easily moved without unnecessarily shaking the seat unit. There is an advantage that the seat unit can be permanently fixed to the base frame.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a front view showing the walking vehicle 1, FIG. 2 is a right side view showing the walking vehicle 1, FIG. 3 is a plan view showing the walking vehicle 1, and FIG. 4 is an enlarged view of the seat unit 4 of the walking vehicle 1. FIG. 5 is a partial cross-sectional view showing the fixed portion 32 of the walking vehicle 1 in an enlarged manner.

  The walking vehicle 1 includes a base frame 2 that can run on a floor surface, a seat unit 4 that can be attached to and detached from the base frame 2 by attaching / detaching means 3, and an outer cylinder that is erected on the left and right sides of the base frame 2. The main component is a pair of left and right armrests 41 and 41 that are supported downward by a cylindrical portion 7 in which an inner cylinder 6 is inserted and inserted in a freely adjustable manner.

  The base frame 2 has a wide U-shaped lower frame portion 8 formed integrally from the front side 8a, the left side 8b, and the right side 8c, and a seat frame unit 4 that is erected at the center of the front side 8a. The front vertical frame portion 9 is substantially U-shaped in a plan view connected and fixed to an upper end portion of the front vertical frame portion 9 and the upper portion of the outer cylinder 5 erected at substantially the center positions of the left and right sides 8b and 8c. It consists of an upper frame part 10. Twin wheel casters 11 and 11 are attached to the lower surfaces of the left side 8b and the right side 8c near the front end, respectively, and casters 12 and 12 are attached to the rear end position.

  The height of the inner cylinder 6 with respect to the outer cylinder 5 is adjusted by operating a known quick lever 39 used as a saddle height adjusting component such as a bicycle. In FIG. 2, when the quick lever 39 indicated by the solid line is rotated counterclockwise and the lever 39 reaches the position indicated by the alternate long and short dash line, the fixing of the inner cylinder 6 to the outer cylinder 5 is released and the inner cylinder 6 is movable. Become. In this state, the height of the armrest 41 is adjusted by pushing up or down the inner cylinder 6. When the lever 39 is returned to the initial position (the position of the lever 39 indicated by a solid line), the inner cylinder 6 is fixed to the outer cylinder 5 and cannot be moved. It should be noted that the quick lever 39 can be operated easily and reliably even by a weak female patient.

  An armrest frame 40 made of a pipe material is fixed to the upper end portion of each inner cylinder 6 in the same direction as the left and right sides 8b and 8c and is substantially orthogonal to the inner cylinder 6, and the upper outer periphery of the armrest frame 40 is fixed. A substantially rectangular armrest 41 is fixed to each surface. In addition, a base portion of a substantially U-shaped back support 42 for supporting the patient's back during walking or the like is fitted in the rear end side of each armrest frame 40, and a rubber grip 47 is provided at the front of the back support 42. It is inserted. As shown in FIG. 2, the length of the back support 42 protruding from the armrest frame 40 can be set in a plurality of stages, and the back support 42 is provided so that the position of the back support 42 can be changed between the horizontal position and the hanging position. .

  As shown in FIG. 1, a connecting member 43 made of a pipe material is horizontally mounted on the upper part of the left and right inner cylinders 6, 6. A grip 44. 44 is provided. The connecting member 43 also has a function of supporting the patient's chest.

  As shown in FIG. 4, the seat unit 4 includes a saddle 13 having a substantially triangular flask shape in plan view on which a user sits, and an elevating mechanism unit 14 that moves the saddle 13 up and down. The elevating mechanism portion 14 has a front end portion of a saddle mounting member 18 on which one end is pivotally attached to each of the horizontal shafts 16 and 16 on the left and right side surface portions 15b of the mounting base 15 having a substantially U-shape in plan view and the saddle 13 is mounted. The other end of which is attached to the horizontal shafts 17 and 17 and arranged in parallel with each other. The four-node parallel link 21 is composed of an upper link piece 19 and a lower link piece 20, and the lower part of the cylinder part 22a is below the left and right side parts 15b. And a gas spring 22 with a lock mechanism that is attached to the lower portion of the saddle mounting member 18 by a horizontal shaft 24 via a bracket 25. The

  The gas spring 22 extends and retracts the rod portion 22b with respect to the cylinder portion 22a, thereby assisting the raising / lowering operation of the four-bar parallel link 21, that is, the up / down operation of the saddle 13, and the saddle 13 at an arbitrary height position. It is a member that plays a role of fixing.

  The saddle mounting member 18 is provided with an operating lever 26 for releasing the lock mechanism of the gas spring 22 so that the rod portion 22b can be expanded and contracted with respect to the cylinder portion 22a. A midway position near the front end of the operation lever 26 is rotatably attached to the saddle mounting member 18 by a rotary shaft 27, and the front end position is pivoted by a pin 29 at a first apex angle portion of a link fitting 28 having a substantially triangular shape in side view. It is worn. The link fitting 28 is pivotally attached to the saddle mounting member 18 at the second apex angle portion by the rotary shaft 30 and is pivotally attached by the bracket 25 and the horizontal shaft 24 at the third apex angle portion.

  The operation lever 26 is disposed close to the lower surface of the saddle 13 so that the lever 26 and the saddle 13 can be simultaneously grasped with one hand to release the locking mechanism of the rod portion 22b. When the operation lever 26 and the saddle 13 are gripped at the same time, the link fitting 28 rotates about the rotating shaft 30, thereby pressing the rod portion 22 b via the bracket 25.

  By this pressing, the locking mechanism of the rod portion 22b with respect to the cylinder portion 22a is released, and the rod portion 22b can be expanded and contracted. In this state, the saddle 13 is moved up and down. The saddle 13 moves up and down while maintaining the horizontal state by the action of the four-node parallel link 21.

  The seat unit 4 described above is provided on the front vertical frame portion 9 and the upper frame portion 10 via the attaching / detaching means 3 so as to be attachable and detachable. Hereinafter, the configuration of the attaching / detaching means 3 will be described with reference to FIGS. 4 and 5.

  The attachment / detachment means 3 includes a plate member 31 that is attached along the front portion 15 a of the attachment base 15 and a fixing portion 32 that fixes the attachment base 15 to the front vertical frame portion 9. The plate member 31 is formed so that the lateral width is wider than the lateral width of the front portion 15a and the vertical width is substantially the same as the vertical width of the front portion 15a, and the bending is integrally formed on the upper portion of the standing portion 31a. Part 31b.

  The bent portion 31b has a bowl shape that is slightly wider than the lateral width of the upright portion 31a, and is formed so as to be suspended from the front side 10a of the upper frame portion 10. The upper portion of the mounting base 15 can be stably suspended from the upper frame portion 10 by the wide bent portion 31b.

  The fixing portion 32 is a side facing the plate member 31 (the elevating mechanism portion 14 side), and is formed with a female screw portion 33 (boss 34) that protrudes in the middle position of the front vertical frame portion 9, and the female screw portion 33. A fitting hole 35 in which the female screw portion 33 can be fitted in the front portion 15 b of the mounting base 15 at a position corresponding to the formation position, and a screw member provided in the mounting base 15 so as to be able to advance and retract with respect to the female screw portion 33. 36.

  As shown in FIG. 5, retaining plates 37 are fixed to both end surfaces of the left and right side surface portions 15 a of the mounting base 15. An insertion hole 46 through which the core portion 36 a of the screw member 36 can be inserted is formed in the retaining plate 37, and a tip portion of the core portion 36 a through which the insertion hole 46 is inserted is disposed so as to be able to be screwed back and forth with respect to the female screw portion 33. . In FIG. 5, 38 is a nut, and 39 is a collar, and these members function to prevent the core portion 36 a from coming out of the insertion hole 46. In FIG. 5, 48 is a washer, and 45 is a plate member that is attached to the front vertical frame portion 9.

  Next, the usage method of the walking vehicle 1 mentioned above is demonstrated. When the seat unit 4 has been removed from the base frame 2 and it is necessary to install it in use, the seat unit 4 is attached by the following procedure.

  First, the bent portion 31 b of the mounting base 15 is suspended from the front side 10 a of the upper frame portion 10, and the female screw portion 33 formed on the front vertical frame portion 9 is fitted into the insertion hole 35 of the mounting base 15. Fine-tune the position of. The screw member 36 is rotated to screw the core portion 36 a into the female screw portion 33, and the mounting base 15 is fixed to the base frame 2.

  The saddle 13 and the operating lever 26 are simultaneously grasped, the locking mechanism of the rod portion 22b with respect to the cylinder portion 22a is released, and the saddle 13 is moved to the lower limit position (four-dot parallel link 21 in FIG. 4). When the hand is released from the operation lever 26, the locking mechanism of the rod portion 22b is automatically activated, and the saddle 13 is fixed at the lower limit position.

  The walking vehicle 1 is brought close to another wheelchair (not shown), and the two-wheel casters 11 and 11 are brought into a locked state. The patient is seated on the saddle 13 with the back supports 42 and 42 in the horizontal position changed to the suspended position.

  Again, the saddle 13 and the operating lever 26 are simultaneously grasped, the locking mechanism of the rod portion 22b is released, the saddle 13 is raised to an appropriate height position, and the patient's standing motion is assisted. The quick lever 39 is rotated and the height of the armrests 41 and 41 is adjusted so that the optimum height position corresponding to the height of each patient is obtained.

  The back supports 42 and 42 are returned from the suspended position to the horizontal position, and the back supports 42 and 42 are contracted to a position where they abut against the patient's back. Unlock twin wheel casters 11 and 11. The patient performs the walking motion while holding the grips 44 and 44 and placing the elbows on the armrests 41 and 41.

  When the walking motion is finished, the operation lever 26 is operated to lower the saddle 13 to a height position similar to that of the seat seats of other wheelchairs, and the patient is transferred from the walking vehicle 1 to the seat seats of the wheelchairs.

  When a patient who does not need to use the saddle 13 or a patient who is not familiar with the saddle 13 uses the walking vehicle 1 of the present invention, an operation of removing the seat unit 4 from the base frame 2 is performed. First, the head portion 36 b of the screw member 36 is gripped, and the screw member 36 is rotated in a direction in which the tip portion of the core portion 36 a is retracted from the female screw portion 33.

  The mounting base 15 is slightly pulled backward, and the female screw portion 33 is removed from the fitting hole 35. The mounting base 15 is lifted, and the bent portion 31 b suspended from the upper frame portion 10 is detached from the upper frame portion 10.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a walking vehicle that moves an elderly person who may fall over when walking alone or a walking motion of a patient with lower limb disorder.

It is a front view of the walking vehicle which concerns on embodiment of this invention. It is a right view of the walking vehicle which concerns on embodiment of this invention. It is a top view of the walking vehicle which concerns on embodiment of this invention. It is a right view which expands and shows the seat part unit of the walking vehicle which concerns on embodiment of this invention. It is a fragmentary sectional view which expands and shows the fixing | fixed part of the walking vehicle which concerns on embodiment of this invention.

Explanation of symbols

1 Walking car
2 Base frame 3 Attaching / detaching means 4 Seat unit
13 saddle
14 Lifting mechanism
15 Mounting base
31 Plate member
31a standing part
31b bent part
32 Fixing part 33 Female thread part 35 Insertion hole 36 Screw member

Claims (3)

  Mounting of a seat unit comprising a base frame that has a space in which a user can enter and exit and can travel on the floor, a saddle on which the user sits on the base frame, and a lifting mechanism that moves the saddle up and down And a detachable means that enables detachment, wherein the detachable means includes a bent portion that can be suspended from the base frame in the attachment base of the elevating mechanism portion, and the attachment base to the base frame. A walking vehicle comprising a fixing portion that is fixed to the vehicle.   The walking vehicle according to claim 1, wherein the bent portion has a wide bowl shape. The fixing portion includes a female screw portion that protrudes from the base frame in the direction of the lifting mechanism portion, and a fitting hole that is formed so that the female screw portion can be fitted on a mounting base surface at a position corresponding to the formation position of the female screw portion. The walking vehicle according to claim 1, further comprising a screw member provided on the mounting base so as to be capable of screwing back and forth with respect to the female screw portion.

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