JP3120346B2 - lift device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting device used as a wheelchair lift or the like.

[0002]

2. Description of the Related Art For wheelchair users, stairs and inclined surfaces are major obstacles to movement. Currently, lifts for wheelchair users are provided on the premises of stations and the like, but the number is still small, and many places other than stations do not have such facilities.

[0003]

Many of the conventional lifts for wheelchair users have a structure embedded in the side of a staircase or the like. Had to be dismantled or the stairs etc. had to be widened and installed. Therefore, the construction becomes large and the cost is increased, which is an obstacle to realizing the construction.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is provided on a side wall surface erected on a side of a stair or an inclined surface along a rising or falling direction of the stair or the like. A guide rail laid and laid, the guide rail, an elevating frame movably mounted along the laying direction of the guide rail, and a lower portion of the elevating frame, horizontally extending in a direction away from the side wall surface, And a lifting platform attached in a state of being lifted from the stairs or the like, and the lifting platform bends an edge located on the upper side of the stairs or the like upward to a position that does not contact the stairs or the like when the lifting platform is raised or lowered. In the meantime, a pit is provided under the floor in front of the lowermost part such as a stair, and the elevator can be stored only in the pit below the stair, and the upper surface thereof is flush with the floor. And store it A pit cover capable of closing the upper surface of the pit space is housed in the pit so that it can be lifted up and down freely. It is characterized by an elevating device in which an elevating platform and a pit cover are linked to each other so as to elevate the cover to a position flush with the floor.

[0005]

An embodiment of the present invention will be described below with reference to the drawings. <A> Guide Rails As shown in FIG. 5, a main guide rail 2 having a U-shaped cross section is provided on the upper and middle tiers and an auxiliary guide rail 21 is provided on a lower tier on a side wall 1 erected on the side of a stair or a slope. Install,
As shown in FIG. 2, it is laid along a vertical direction such as a stair. As shown in FIG. 5, the main guide rail 2 has a U-shaped opening facing upward, and the auxiliary guide rail 21 has a U-shaped opening facing the side wall 1 side. Attachment of these guide rails is firmly fixed to the side wall 1 with anchor bolts or the like.

<B> Elevating Frame The elevating frame 3 is a steel material having a substantially triangular shape as shown in FIGS. On one surface of the lifting frame 3,
As shown in FIGS. 5 and 6, substantially L-shaped arms 39 are joined to the upper and middle stages of the elevating frame 3, and the main roller 31 is attached to the side wall 1 of each arm 39 so that the arm 39 can run on the main guide rail 2. Installed in Upper middle main roller 3
Each of the auxiliary rollers 32 is attached slightly below the first guide rail 1 to support the lower surface of the main guide rail 2. A plate-shaped slide shoe 3 is swingably mounted on the lifting frame 3 side of the arm 39 via a swivel joint 33.
4 is attached. As the structure of the swivel joint 33, for example, a structure in which a hole larger than a hemisphere is formed in one surface of the plate material and a sphere formed at the end of the shaft is housed in this hole is considered. A slide rail 35 is laid between the slide shoe 34 and the inner surface of the main guide rail 2 over the entire length of the main guide rail 2. Since the slide shoe 34 slides along the slide rail 35, both are formed of a low friction material. For example, the slide shoe 34 is made of a SUS material, the slide rail 3
5 is formed of a material such as polyethylene. On the other hand, a slide shoe 37 is also attached to the lower stage of the elevating frame 3 via a swivel joint 36.
Slide rail 38 between the guide rail 7 and the auxiliary guide rail 21
Laying. As described above, the lifting frame 3 is supported by each guide rail in a cantilever manner, the main guide rail 2 receives the weight of the lifting frame 3, and the auxiliary guide rail 21 is mounted on the side of the side wall 1. It has a function to prevent approaching. Also, each slide shoe prevents the lifting frame 3 from separating from the side wall 1,
In a stable posture, the lifting frame 3 can run along the direction in which the guide rails are laid.

<C> Ascending / descending drive unit As means for elevating the ascending / descending frame 3, for example, as shown in FIGS. 2 and 4, a drive motor 4 such as an electric motor with a worm speed reduction mechanism is provided below the floor above the stairs. A pit 41 is provided and housed, and the lifting frame 3 is moved through an endless traction line 42 such as a roller chain wound around the drive motor 4.
The driving force can be transmitted to the motor. The towing line 42 is shown in FIGS.
As shown in (1), a sprocket wheel 43 is provided at an appropriate position on the side wall 1 and is wrapped around the sprocket wheel 43, and is arranged in a vertical direction such as a stair.

<D> Lifting Platform The lifting platform 5 extends horizontally below the lifting frame 3 in a direction away from the side wall 1 as shown in FIGS.
And it is a pedestal made of steel plate or the like mounted in a state of floating from the stairs or the like. The elevating table 5 is formed in an area and a shape suitable for the purpose of use, and is integrally joined to the elevating frame 3 via a connecting shaft 51 protruding from a lower portion of the elevating frame 3. As shown in FIG. 3, a feature of the elevator 5 is that a bent front end portion 52 that can be bent upward is formed at an upper edge of the stairs or the like. The bent portion 52 is bent by a small drive motor (not shown) attached to the bottom of the lift 5 or the like. Then, by bending the front bent portion 52 upward when the elevator 5 is moved up and down, the edge of the elevator 5 does not need to contact the stairs or the like, so that a safe elevating operation can be performed.

<E> Pit Cover As shown in FIG. 3, the elevator 3 is provided with a pit 6 below the floor in front of the lowermost part such as a staircase, and is housed so as to be flush with the floor. . In the pit 3, a pit cover 61 made of a steel plate or the like capable of closing the upper surface of the space of the pit 3 is housed in a vertically movable manner. The lifting device for the pit cover 61 may be, for example, a device in which a strip is arranged in an X shape by pivotally supporting an intersection, and these are configured to be extendable and contractible by a plurality of jacks. When the elevator 5 closes the upper surface of the space of the pit 6, the pit cover 61 is in a state where the pit cover 61 is lowered, and when the elevator 5 is moved up and down, the pit cover 61 is raised to the same plane position as the floor surface. It is configured in conjunction with the elevator to make it work.

<F> Other facilities As other facilities, as shown in FIGS.
A safety cover 7 surrounding the other mechanical parts is installed over the entire length of the side wall 1. As shown in FIG. 1, a handrail 71 for the user to grasp is provided on the side surface of the safety cover 7.
Is provided. Further, an operation box 72 for performing an ascending and descending operation is installed on the upper and lower floors such as stairs, and an emergency stop device, a patrol light, an alarm buzzer, and the like are further provided as necessary.

[0011]

[Operation of the Lifting Device] As shown in FIG. 1, when the user gets on the lifting platform 5 and presses the operation switch, first, the front bent portion 52 of the lifting platform 5 is bent upward. Next, drive motor 4
Is operated, the driving force is transmitted via the towing line 42, and the elevator 5 starts to ascend. When the elevator 5 starts to ascend, the pit cover 61 is pushed up to the same plane as the floor, and replaces the elevator 5 to close the upper surface of the space of the pit 6. The elevating platform 5 rises at a constant speed while maintaining the horizontal position, but does not contact the stairs or the like because the front bent portion 52 is bent upward. When the elevator 5 reaches the top of the stairs or the like and is located on the same plane as the upper floor, the drive motor 4 stops by automatic control. And since the front bent part 52 returns to a horizontal position, a user can get down safely. When the vehicle descends, the pit cover 61 starts descending immediately before the elevator 5 returns to the lower pit 6 such as the stairs.
Instead of 1, it returns to the same plane as the floor.

[0012]

Since the present invention has been described above, the following effects can be obtained. <A> The lifting device according to the present invention is cantilevered on a side wall surface of a stair or the like, and is installed at a position floating from the stair or the like. Therefore, it is not necessary to disassemble the side portions of the stairs and the like as in the related art, and it is possible to easily perform the construction on the existing stairs and the like, and the construction cost can be significantly reduced. Accordingly, it is possible to realize a large number of works as a lift for a wheelchair user or the like, and to facilitate the movement of the wheelchair user or the like in any place.

<B> Since the lift platform has a bent-together structure, there is no danger that the tip of the lift platform will contact the corners of the stairs or the like during operation of the lift platform, and safe operation can be performed.

<C> A pit cover is accommodated in the pit of the elevator, and the upper surface of the pit space can be closed by the pit cover during operation of the elevator. Therefore, it is possible to prevent a person or the like from falling into the pit, and safety is improved. <D> In the structure of a normal structure such as a station building, a deep pit can be provided there because the ground under the stairs is the foundation ground. However, concrete slabs above the stairs make it impossible to create deep pits on the floor. That point,
The elevator of the present invention can be stored only in a pit provided below the floor in front of the lowermost part such as a staircase. The pit located on the lift platform needs only a small volume to accommodate the motor. For this purpose, the elevator can be accommodated in the pit below the stairs so that the upper surface thereof is flush with the floor surface. Therefore, it is extremely practical and economical as compared with the conventional structure in which a pit is provided also on the stairs.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a use state of a lifting device according to the present invention.

Fig. 2 Overall view of internal structure

FIG. 3 is an explanatory view of a main part on a lower side such as a stair.

FIG. 4 is an explanatory view of a main part on the upper side such as a stair.

FIG. 5 is an explanatory view of a traveling device.

FIG. 6 is an explanatory view of a main part of a traveling device.

Continuation of front page (56) References JP-A-59-8688 (JP, A) JP-A-60-26478 (JP, U) JP-A-60-36979 (JP, U) JP-A-61-75481 (JP) , U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B66B 9/08

Claims (1)

(57) [Claims] 1. A guide rail laid on a side wall surface erected on a side of a stair or an inclined surface along a rising / falling direction of a stair or the like, and the guide rail can be run along the laying direction of the guide rail. An elevating frame attached to the lower part of the elevating frame, the elevating platform extending horizontally in a direction away from the side wall surface, and attached in a state of being lifted up from a stair, etc. The edge located on the upper side of the etc. is configured to be able to bend upward to a position where it does not contact the stairs etc. when ascending and descending the elevating platform.On the other hand, a pit is provided below the floor at the bottom of the bottom of the stairs etc. The elevator can be stored only in the pit below the stairs, and the upper surface is stored so as to be flush with the floor surface. A pit cover capable of closing the upper surface of the pit space is stored in the pit so as to be able to move up and down. And If the platform blocks the upper surface of the pit space, the pit cover is lowered, and when the platform is raised or lowered, the platform and pit cover are linked to raise the pit cover to the same plane as the floor. When the elevator reaches the top, the tip of the elevator is bent.
Make sure that the beam is positioned horizontally and flush with the floor.
Lifting device.