JP2005119768A - Lifter for wheel chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lifter for a wheel chair capable of enhancing safety. <P>SOLUTION: In the lifter for the wheel chair, falling prevention fences are secured so that they are arranged at both left/right sides of a table part and a slope member is pivotally supported at at least one side of longitudinal end edges of the table part so as to become vertically turnable. A shutting off rod is turnably mounted to one falling prevention fence and operation can be appropriately carried out to the closing state where the shutting off member is engaged with the other falling prevention fence and the opening state where it is turned to any one of vertical direction. When the shutting off rod is in the closing state, the slope is locked in the standing state. When the shutting off rod is made to the opening state, the slope is retained in the standing state and lock of the standing state is released to be made to the falling operatable state. The falling operation can be carried out by an operation means of the slope. Further, when the shutting off rod is operated from the opening state to the closing state, the interlocking slope is stood. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a safety device in an elevator for a wheelchair.

  In recent years, there are increasing opportunities to see new buildings and various facilities that incorporate a so-called universal design that eliminates height differences. However, there are still many inadequate aspects for those using wheelchairs. For example, even at home, there are steps up to the approach to the entrance, so you can enter the house without assistance from a helper while riding in the wheelchair. There are places where you can't.

  Various types of elevators for wheelchairs have been proposed to eliminate such steps. One of them is as follows.

This elevator for a wheelchair includes a support device having a guide rail extending in the vertical direction, a roller device movable in the vertical direction along the guide rail, and a floor member integrated with the roller device and extending in the horizontal direction. A cage device, a drive device for driving the cage device upward at least, a safety bar having one end pivotably attached to the cage device, and pivoting with respect to one edge of the floor member The safety bar is pivoted upward or downward from the closed position in a substantially horizontal direction and from the closed position at a position above the end edge of the floor member. The gate plate can be opened and closed between an open position, and the gate plate is mounted on the floor member and a guide position for guiding the wheelchair by connecting the floor member and the floor surface when the wheelchair gets on and off. The wheelchair can be opened and closed by rotating between an upright standing position to prevent the wheelchair from falling off the edge, and when the safety bar is in the closed position, the gate plate is The gate plate is configured to open and close in conjunction with the opening and closing operation of the safety bar so that the gate plate is in the guide position when the safety bar is in the open position when in the standing position. It is characterized by being made.
Japanese Patent Laid-Open No. 9-290996

  However, in the above prior art, when the safety bar is rotated from the closed position to the open position, the wheelchair must be moved close to the elevator and then the upward or downward rotation operation must be performed. When the gate board fell to the wheelchair user side by the operation, there were inconveniences such as hitting the user's foot and soiling clothes.

  The problem to be solved is that a breaker bar is provided on the lift table to prevent a user or a caregiver from falling down, and depending on the state of the breaker bar, the lifting and lowering operation of the elevator may be restricted. It is to provide a safer wheelchair elevator by semi-interlocking standing or lying down operation.

The invention of claim 1 is a wheelchair elevator configured such that a table portion of a size allowing a wheelchair to board and pass can be moved up and down, and a fall prevention fence is provided so as to be arranged on both left and right sides of the table portion. At the same time, the slope member is pivotally supported so that it can be pivoted up and down at least on one side of the front and rear end edges of the table part, and a blocking bar can be pivoted on one fall prevention fence When installed, the shut-off member can be appropriately operated in a closed state in which the shut-off member is hooked on the other fall-preventing fence and an open state in which the shut-off member is rotated in either the vertical direction, and the shut-off bar is in the closed state When the slope is locked in the upright state and the blocking bar is in the open state, the slope is held in the upright state, and the upright lock is released to allow for the overturning operation. It is configured so that the slope can be operated, and further, when the blocking bar is operated from the open state to the closed state, the slope is configured to stand up in conjunction with it.
The invention according to claim 2 is configured such that when either one of the left and right sides of the table portion and the blocking bar arranged at the front and rear are opened, the other blocking bar cannot be opened. It is characterized by that.
The invention of claim 3 is characterized in that the table portion cannot be raised and lowered when any one of the blocking bars is in an open state.
The invention according to claim 4 is characterized in that at least one of the fall prevention fences is configured to be able to open and close the blocking bar substantially at an intermediate position.

In the invention according to claim 1, in the elevator for a wheelchair configured to be able to move up and down the table part on which the wheelchair can be boarded and passed, the fall prevention fences are fixed so as to be located on both the left and right sides of the table part, It is configured to prevent falling. Furthermore, a slope is attached to at least one side of both front and rear edge portions of the table portion so as to be rotatable up and down. Therefore, when the slope is laid down, it is configured to easily enter and exit the table portion with a wheelchair. Furthermore, when the slope is in an upright state, it can be functioned as a wheel stopper for a wheelchair, which is safe. When the blocking bar and the slope are rotated from the closed state to the open state, the rising state of the slope is released, but the standing state is maintained, and the slope is operated by the slope operating means. It is configured as possible. Therefore, when operating the blocking bar, it can be operated at a position where the force can be easily approached by approaching the elevator, and after opening the blocking bar, it can fall down a little away from the slope. Unlike the one that interlocks the blocking bar and the slope like this, the slope is not applied to the foot. In addition, it is safe because it can be operated without taking an excessive forward leaning posture. Furthermore, when the blocking bar is changed from the open state to the closed state, the slope also rises in conjunction with the operation, so that the operation is very simple and easy to use.
In the invention of claim 2, in the pair of blocking bars provided in the front and rear upper part of the table portion, when any one blocking bar is opened, the other blocking bar cannot be operated from the closed state. It is configured as follows. That is, when the boarding side or the exiting side is in the open state, the opposite side is always in the closed state and the wheel stop state, so that it can be used safely and safely.
In the invention of claim 3, when any one of the blocking bars is in an open state, the table portion is configured so as not to be lifted / lowered. Even if you touch an operation button, it is safe because it does not move up and down. In addition, in the state where the blocking bar is opened, the slope may be lying down, but in this state it will not rise and fall, so there will be no risk of damaging the wheelchair elevator without catching the slope on something .
In the invention of claim 4, since it is configured to be able to open and close the blocking bar so as to be positioned substantially in the middle of the fall prevention fence on either one of the left and right sides while being on the table portion, the user Can operate the blocking bar without twisting the body. Therefore, the operation is very easy and can be performed safely.

In the elevator for a wheelchair, a slope is provided at the front and rear end edges of a table portion that is large enough to allow the wheelchair to pass and pass, so that the wheelchair can easily ride on the table portion. And when a wheelchair boarded, a slope is rotated upwards and it is made to function as a wheel stopper of a wheelchair as an upright state. Furthermore, a fall prevention fence for preventing the fall to the side is provided on both sides of the table portion. A blocking bar is rotatably attached to the front and rear edges of the one-side fall prevention fence and above the slope, and the wheelchair can pass through a closed state that is hooked on the other fall-prevention fence. It is configured to be operable in the open state. By comprising in this way, the fall and fall of the wheelchair user who carried on the table or a caregiver can be prevented.
Further, the slope is not allowed to fall when the blocking bar is in the closed state, and the rising state of the slope is released but the standing state is maintained when the blocking bar is opened. . Further, when the blocking bar is changed from the open state to the closed state, the slope is configured to stand up together. In other words, since the slope does not fall down in conjunction with the operation of the blocking bar, it is possible not only to operate the blocking bar in a state sufficiently close to the elevator, but also to prevent the clothes from being soiled and scratched by the slope falling down at the foot. be able to.
Moreover, it can also be comprised so that raising / lowering operation can be performed only in the state in which the interruption | blocking stick | rod and the slope are functioning as a safety fence by comprising so that raising / lowering operation may be restrict | limited by operation of a interruption | blocking stick | rod.

First, the structure of the elevator 1 for wheelchairs is demonstrated.
The wheelchair elevator 1 includes a base frame 2 serving as a grounding member, support columns 3 and 3 erected on the base frame 2, a lift member 4 that moves up and down along the support columns 3 and 3, A table portion 5 that is mounted on the member 4 and on which the wheelchair K can be mounted and passed, an elevating means 6 that moves the elevating member 4 up and down along the columns 3 and 3, and a fall from the table portion 5 are prevented. It is mainly comprised from the safety device 7 for doing.
In addition, the upper limit position and the lower limit position in the description are the heights of the upper limit or the lower limit of the table unit 5 set for use.

Hereinafter, each part will be described.
The base frame 2 is configured to have a rectangular shape in a plan view by fixing side frames 8 and 8 spaced apart from each other and connecting frames 9 and 9 connecting the side frames 8 and 8 to each other. And the support | pillars 3 and 3 are each fixed to the both ends of the one side part of the base frame 2 in the upright state.

  Next, the elevating member 4 attached so as to be movable up and down along the support columns 3 and 3 will be described. The elevating member 4 has cylindrical members 10 and 10 that can be externally fitted to the support columns 3 and 3. The cylindrical members 10 and 10 are in contact with the support columns 3 and 3 and roll. The rollers 11, 11,... Are supported so as to be freely movable, and the cylindrical members 10, 10 are configured to move up and down smoothly. The connecting pipes 12 and 12 and the reinforcing pipes 13, 13 and 13 are fixed between the cylindrical members 10 and 10 to form an integral structure. Note that stay members 13a and 13a for fixing a table portion 5 to be described later are fixed to appropriate positions of the reinforcing pipes 13 and 13, respectively.

  In the elevating member 4 configured as described above, the cylindrical members 10 and 10 are inserted into the support columns 3 and 3 so as to be movable up and down along the support columns 3 and 3. A connecting member 14 is attached to the upper end portions of the columns 3 and 3. In addition, the intermediate part of this connection member 14 is provided with the bearing part 15 used as the attaching part of the raising / lowering means 6 mentioned later.

Next, the raising / lowering means 6 which raises / lowers the said raising / lowering member 4 is demonstrated.
The elevating means 6 is screwed to the screw shaft 16 disposed so as to be erected between the columns 3 and 3, and screwed so that the screw shaft 16 can be moved up and down by forward and reverse rotation of the screw shaft 16. It is mainly comprised from the member 17 and the drive part 18 which rotationally drives the screw shaft 16. FIG. Specifically, the drive unit 18 is disposed between the support columns 3 and 3 of the base frame 2. The drive unit 18 includes a support member 19. A lower portion of the support member 19 is fixed to the support columns 3 and 3 or the base frame 2, and a bearing portion 20 for rotatably supporting the lower end of the screw shaft 16 is provided at the upper portion. The screw shaft 16 is attached to the bearing portion 20 and the bearing portion 15 provided in the connecting member 14 so as to be rotatable forward and backward. A screw member 17 is screwed onto the screw shaft 16. The motor 21 is arranged so that the lower end portion of the screw shaft 16 and the axis of the rotation shaft (not shown) of the motor 21 coincide with each other, and are connected via a coupling 22. Note that gears or the like (not shown) may be fastened to the rotating shaft (not shown) of the motor 21 and the screw shaft 16 so that these gears mesh with each other. Reference numeral 23 denotes a control circuit that controls the operation of the motor 21. Reference numeral 24 a denotes a cover for the drive unit 18, and 24 b denotes a cover for the screw shaft 16 and the screwing member 17.
Mounting members 17a and 17a are fixed to the screwing member 17. The mounting members 17a and 17a are screwed to a mounting plate 13b fixed to the reinforcing pipe 13 of the elevating member 4. The elevating member 4 is configured to move up and down along the columns 3 and 3 in conjunction with the vertical movement of the combined member 17. At this time, the table portion 5 and the elevating member 4 are integrally fixed by screwing the appropriate portions of the table portion 5 and the stay members 13a, 13a,.
When the motor 21 is operated by the control device 23, the lifting / lowering means 6 configured as described above rotates the screw shaft 16 and the screwing member 17 screwed to the screw shaft 16 moves up or down. It is configured to As the screwing member 17 moves, the elevating member 4 moves up and down along the columns 3 and 3.

A table portion 5 is attached to the elevating member 4 so as to be positioned on the base frame 2. The table portion 5 is formed by fixing a table plate 26 on a table frame 25, and is at least a size on which a wheelchair K can be boarded.
Slopes 27 and 27 are pivotally attached to the front and rear end edges of the table portion 5 so as to be rotatable up and down. Although the operation means 28 of the slopes 27 and 27 will be described later, at the lower limit position of the table portion 5, one slope 27 is rotated downward to be able to get on and off (slope state), and the table portion 5 is in the lower limit position. When the table portion 5 reaches the upper limit position, the slopes 27, 27 on both sides are kept jumped up (stand up state) and function as a wheel stopper for the wheelchair K. The slope 27 can be turned downward, and can be bridged with the upper part of the step (slope state) so as to be able to descend from the elevator 1. In the present embodiment, the slopes 27 are attached to the front and rear of the table portion 5, but the slope 27 may be attached only to the side that can be used on the upper side of the step, and the slope may not be attached to the lower side of the step. In this case, if a pit is dug in the downward projection direction of the table unit 5 and installed so as to eliminate the height difference between the table unit 5 and the lower side of the step, it becomes easy to use.

  In the wheelchair elevator 1 configured as described above, the screw shaft 16 is also rotated in the forward and reverse directions by the forward and reverse rotation of the motor 21 disposed in the drive unit 18. The member 17 moves up and down, and the elevating member 4 and the table portion 5 attached to the screwing member 17 are also configured to move up and down along the columns 3 and 3.

Next, the safety device 7 provided in the wheelchair elevator 1 will be described.
The safety device 7 includes guard pipes 29 and 30 serving as fall prevention bars provided so as to be disposed on both the left and right sides of the table portion 5 and fall prevention fences so as not to be sandwiched between the support columns 3 and 3 and the connecting member 14. And a shield that is pivotally attached to one guard pipe 29 and that can be rotated between a state where the left and right guide pipes 29 and 30 are blocked (closed state) and a state where the wheelchair can pass (open state). A bar 31 is provided.

First, the guard pipes 29 and 30 will be described. The guard pipes 29 and 30 are formed in a gate shape, and are fastened so as to stand upright on both left and right ends of the table frame 25. A box-shaped member 32 is fixed to a substantially central portion of the guard pipe 29 on the support columns 3 and 3 side. Hole portions 32 a and 32 a are formed in the front and rear surfaces of the box-shaped member 32. Further, restriction bearings 33, 33 are fixed to the front and rear end edges of the guard pipe 29 so as to be the same as the axial centers of the hole portions 32a, 32a. The regulation bearing 33 is provided with an L-shaped stepped groove 33a. As will be described later, the stepped notch groove 33a has an effect of restricting the turning operation of the blocking bar 31.
Further, receiving members 34 and 34 for the blocking bars 31 and 31 are fixed to the upper front and rear end edges of the guard pipe 30 attached to the opposite side of the table portion 5.
Although there are drawings that are not shown in order to clarify the structure, a plurality of shielding rods 35, 35,... Or curtain members, plates, etc. are attached to these guide pipes 29, 30. It is preferable to adopt a configuration that can prevent the fall more.
Furthermore, although the guard pipe 29 is attached to the table frame 25 in the present embodiment, the same effects as in the above embodiment can be obtained even if the guard pipe 29 is attached to the elevating member 4. That is, the guard pipe 29 can be attached to any member other than the table frame 25 and the lifting member 4 as long as it is a member that can be lifted and lowered in the same manner as the table portion 5.

Next, a description will be given of the pair of blocking rods 31, 31 attached to the front and rear of the guard pipe 29. The blocking bar 31 is bent in an L shape, and one of the blocking bars 31 is inserted into the restriction bearing 33 and further inserted into the hole 32 a of the box-shaped member 32. A cylindrical member 36 is fixed to the end portion of the blocking bar 31 in the box-shaped member 32 by a pin 37, and this cylindrical member 36 also serves as a stopper for blocking the blocking bar 31. In addition, 38 is a bush for smoothly performing the turning operation of the blocking bar, and 39 is an attachment member for attaching the wire member 40.
Further, the bolt member 41 is screwed onto the blocking bar 31 so that the other end is placed on the receiving member 34 fixed to the guard pipe 30 so as to be positioned at the bottom of the stepped groove 33a of the restriction bearing 33. doing. The bolt member 41 is positioned in the stepped notch groove 33a so that the turning operation of the blocking bar 31 is restricted. The blocking bars 31 attached in this way are arranged in the front-rear direction. A spring 42 that urges the blocking bars 31 and 31 away from each other is fitted in the cylindrical members 36 and 36 in the box-shaped member 32. Due to the urging force of the spring 42, the bolt members 41, 41 are configured to be located at the bottoms of the stepped grooves 33 a, 33 a of the regulation bearings 33, 33.
In this embodiment, the guard pipe 29 is provided with the blocking bar 31 attached thereto. However, the guard pipe 29 may be attached to the elevating member 4 or the support member (not shown) attached to the table portion 5.

Next, the slopes 27 and 27 pivotally supported at the front and rear edge portions of the table portion 5 will be described.
The slopes 27, 27 are configured to be rotatable by pivotally supporting the slope support members 44, 44 on cylinders 25a, 25a,... Fixed in the vicinity of the four corners of the table frame 25, respectively. . More specifically, the slope support member 44 includes rotating plates 46 and 47 fixed to both ends of the support pipe 45 and mounting plates 48 and 48 fixed to appropriate positions of the support pipe 45. The mounting plates 48 and 48 include The slope plate 49 is fixed. The rotating plates 46 and 47 are provided with female screw portions 46a and 47a so that their axial centers coincide with each other. The bolt members 50 and 50 are screwed in accordance with the cylindrical bodies 25a and 25a to form a slope. 27 is rotatable.
The rotating plate 46 located on the guard pipe side to which the blocking bar 31 is attached is provided with a hole portion 46b that is a fixing portion of the wire attaching member 51. Furthermore, the pin 46c which latches the springs 52 and 53 for hold | maintaining the standing state of the slope 27 is adhering. The pin 46c is engaged with the other ends of the springs 52 and 53, each having one end hooked to the guard pipe 29 and the table frame 25, so that the slope 27 is held up. Needless to say, the springs 52 and 53 lighten the operating force applied to the rising and falling operation of the slope 27. That is, since the slope 27 is biased in the direction to stand up by the springs 51 and 52, when the user M operates in a state where the user M gets on the wheelchair K, the slope 27 does not suddenly fall down and can be operated with peace of mind. it can. In the present embodiment, two springs are used, but there is no problem with one spring. Further, an elastic body such as rubber may be used instead of the spring.

  Then, one end portion of the wire member 40 is attached to the attachment member 39 fixed to the blocking bar 31, and the other end portion of the wire member 40 is inserted into the guide pipe 54 fixed to the guard pipe 29, and further rotated. The plate 46 is stretched through a wire attachment member 51. Further, as the operating means 28 of the slope 27, the rotation plate 46 is provided with a hole 46d, and the rotation plate 56 is pivotally attached to a lever mounting member 55 fixed to the guard pipe 29. The other end of the lever member 57 pivotally supported at one end is pivotally supported.

The operating state of the safety device 7 configured as described above will be described with reference to FIGS.
First, in a state where the blocking rods 31 and 31 are on the receiving members 34 and 34 of the guard pipe 30 (indicated by a solid line in FIG. 4), as shown in FIGS. The bolt member 41 that is screwed to is located at the bottom of the stepped notch groove 33a. In this state, the bolt member 41 is locked so that it cannot be rotated upward.
Then, in order to release the locked state of the blocking bar, the blocking bar 31 is moved in the direction of arrow A in FIG. As a result, the bolt member 41 moves to the state shown in FIG.
When the blocking bar 31 is rotated upward from this state, the attachment member 39 is also simultaneously rotated as shown in FIG. 5 (C), and the wire member 40 attached to the attachment member 39 is loosened.
When the wire member 40 is not slack, that is, when the blocking bar 31 is in the closed state, the slope 27 is in an upright state as shown in FIG. When in this state, the slope 27 cannot be rotated downward by the wire member 40.
When the wire member 40 is slack, the upright holding state of the slope 27 is released, and the lever member 57 can be rotated. However, at this time, the slope 27 is kept in an upright state until the lever member 57 is rotated by the urging force of the springs 52 and 53.
If the lever member 57 is rotated in the direction of the arrow in FIG. 5 (d), the slope 27 will fall down against the urging force of the springs 52 and 53, and can be used in a slope state.
After the slope 27 is laid down and boarded on the table unit 5 or after getting off the table unit 5, the blocking bar 31 is rotated from the open state to the closed state. By this turning operation, the wire member 40 is pulled up, and the slope 27 is also in an upright state at the same time.
In this way, by configuring the safety device 7 including the guard pipes 29 and 30 and the slopes 27 and 27 as described above, the closing operation of the blocking bar 31 is performed without the interlocking of the slope 27 when the blocking bar 31 is opened. Since the slope 27 is sometimes interlocked, the slope 27 does not fall into the feet. That is, when operating the blocking bar 31, it is possible to approach the table portion 5 in order to easily apply force (see FIG. 9). Therefore, when the slope 27 falls down in conjunction with the slope 27, it must move away from the slope 27 and operate the blocking bar 31, and there is a risk of accidentally falling forward. Since it is not necessary to take a posture, it can be used more safely.

Next, a second embodiment different from the above-described safety device 7 will be described.
In this embodiment, when the one-side blocking bar 31 is in the open state, the other-side blocking bar 31 cannot be operated from the closed state to the opened state.
This is obtained by the distance D ₂ of the step D ₁ and the cylindrical member 36, 36 of the stepped cutout groove 33a as shown in FIG. 5 and substantially equally configured. With such a configuration, when either one of the blocking bar 31 in an open state, almost eliminated spacing D ₂ of the cylindrical member 36 and 36, the bottom of the other blocking bar 31 a stepped cutout groove 33a It cannot be moved from. Therefore, the other blocking bar 31 cannot be rotated from the closed state.
If comprised in this way, only the side which gets in to the table part 5 or the side which gets off from the table part 5 will be in an open state, and the other will always be in the state locked in the closed state, and it is safe.

Further, in the case of such a configuration, by providing a limit switch 58 so that the detecting portion 58a is positioned between the cylindrical members 36 and 36 as shown in FIG. It is possible to detect whether or not the blocking bars 31 and 31 and the slopes 27 and 27 are closed.
That is, as shown in FIG. 7 (a), in the free state where both the cylindrical members 36, 36 are not in contact with the detecting portion 58a of the limit switch 58, the blocking bars 31, 31 on both sides are in a closed state. Only in this case, the motor 21 can be energized.
Further, as shown in FIG. 7 (b), when any one of the cylindrical members 36 comes into contact with the detection portion 58a of the limit switch 58, one of the blocking bars 31 is open, and the slope 27 is also Since there is a possibility that the motor 21 is lying down, the motor 21 is electrically cut off so as not to be energized.
By configuring in this way, it cannot move up and down when one blocking bar 31 is open, and can move up and down only when the blocking bars 31 on both sides are closed. That is, since it is configured to be able to move up and down only when the blocking bars 31 and 31 function as fall prevention and when the slopes 27 and 27 function as wheel stops, it is very safe.

Furthermore, a third embodiment different from the above-described safety device 7 will be described.
In this embodiment, a description will be given of an operation lever 59 that allows the user M to easily operate the blocking bar 31 without greatly twisting his / her body while riding on the table unit 5.
In this configuration, an operation lever 59 is disposed between the regulation bearing 33 and the box-shaped member 32, and the blocking bar 31 is inserted into the operation lever 59. More specifically, the operation lever 59 is provided with a cam groove 60a at an appropriate position of the pipe 60 and a lever member 61 fixed thereto. Incidentally, the cam groove 60a is configured spiral grooves to allow movement of the step D ₁ minute of the stepped cutout groove 33a when rotated a predetermined angle lever member 61. A bolt member 62 is screwed to the blocking bar 31 so as to be positioned in the cam groove 60a.
In the operation lever 59 configured as described above, when the blocking bar 31 is in the closed state, the bolt member 62 is in contact with one side of the cam groove 60a as shown in FIG. 7 (a). When the lever member 61 is rotated by a predetermined angle, the bolt member 62 moves along the cam groove 60a and slides from the lock portion of the stepped notch groove 33a of the regulating bearing 33 to a position where it can rotate. Further, when the lever member 61 is rotated, the bolt member 62 is positioned at the end of the cam groove 60a, and the blocking bar 31 can also be rotated.
That is, by fixing the lever member 61 in the vicinity of the box-shaped member 62, when the user M gets on the table portion 5, the user M can open and close the blocking bar 31 without greatly twisting his body. It is what.

The elevator 1 for a wheelchair according to the present invention is safe because safety devices 7 that prevent the vehicle from falling or falling after being mounted on the table unit 5 are provided on four sides of the table unit 5.
Further, blocking bars 31 and 31 and slopes 27 and 27 are provided on the front and rear of the table portion 5, so that not only can the boarding with the wheelchair K be performed easily, but the slopes 27 and 27 are used as wheel stoppers for the wheelchair K. Since the blocking bars 31, 31 are configured to be prevented from falling at a higher position, they are safer.
Furthermore, since it can also be comprised so that the raising / lowering operation | movement of the table part 5 cannot be performed when the interruption | blocking stick | rod 31 is an open state, it is very safe.
And since the operation of the blocking bars 31 and 31 can be easily performed even in the state of being on the table unit 5, the elevator is easy to use.

Overall front view of a wheelchair elevator according to the present invention The whole right side view Partial sectional view showing the lifting mechanism The perspective view which shows a table part and a safety device (A) An explanatory diagram showing the closed state of the blocking bar (b) An explanatory diagram showing the unlocked state of the closed state of the blocking bar (c) An explanation showing the state where the blocking bar is in the open state Figure (d) Explanatory drawing showing the state where the slope is lying down Perspective view of main part showing notch groove of regulation bearing Cross-sectional view of the main part showing the state detection means of the blocking bar (a) An explanatory diagram showing a case where the blocking bar is in a closed state (b) An explanatory diagram showing a case where the blocking bar is in an open state (A) An explanatory diagram showing a case where the blocking bar is in a closed state and a slope is in an upright state (b) An explanatory diagram showing a state in which the blocking bar is in an open state and the slope can be operated in a sloping manner (c) ) Explanatory drawing showing the state where the blocking bar is open and the slope is laid down Usage diagram

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wheelchair lift 2 Base frame 3 Support column 4 Lifting member 5 Table part 6 Lifting means 7 Safety device 25 Table frame 27 Slope 28 Operating means 29, 30 Guard pipe 40 Wire member

Claims (4)

  In a lift for a wheelchair configured to be able to move up and down a table part of a size that allows a wheelchair to board and pass, the fall prevention fence is fixed so as to be arranged on both the left and right sides of the table part, and the table part A slope member is pivotally supported on at least one side of the front and rear end edges of the front and rear, and a blocking bar is rotatably mounted on one fall prevention fence. The slope can be locked in an upright state when the blocking bar is in a closed state, and can be operated as appropriate between a closed state that is hooked on the other fall-preventing fence and an open state that is pivoted up or down. When the blocking bar is in the open state, the slope is held in an upright state, the upright lock is released, and the inclining operation can be performed. Is configured to allow further, when operating in the closed state blocking bar from the open state, wheelchair lifts, characterized in that the slope in conjunction is configured to stand up.   A configuration in which the other blocking bar cannot be opened when one of the blocking bars arranged so as to be positioned on either the left or right side of the table portion and in the front-rear direction is opened. Item 1. A lift for a wheelchair according to item 1.   The elevator for a wheelchair according to claim 1 or 2, wherein when one of the blocking bars is in an open state, the table portion cannot be raised or lowered.   The elevator for a wheelchair according to any one of claims 1 to 3, wherein the opening / closing operation of the blocking bar can be performed at an approximately middle position of at least one of the fall prevention fences.

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