JP3407957B2 - Wheelchair lift - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator used for removing a step when moving in a wheelchair. 2. Description of the Related Art Conventionally, in order to enhance safety, this type of elevator is provided with a wheelchair release prevention member on the left and right sides of a lifting table, so that the elevator can be moved in the front-rear direction. It will be limited. In addition, a large space in the front-rear direction is required for this, and it is very difficult for a general home to be installed at the entrance or on the edge. [0003] Problems that [0008] the present invention is to provide, at least longitudinal Roll direction of one of the left and right sides can be formed a space portion passenger, moreover the wheels in the space portion of the lift table An object of the present invention is to provide an elevator capable of forming a safety device for a stopper member and a wheel-prevention preventing member by an appropriate operation, and which can be installed at an entrance of a general household. [0004] In order to solve the above-mentioned problems, the present invention provides a base frame 1 installed on the ground side, which is at least large enough to allow a wheelchair to be placed thereon, and is substantially in plan view. A rectangular elevating table 20 is provided, and the elevating mechanism 5 is interposed between the elevating table 20 and the base frame 1 so that the elevating table 20 can be appropriately raised and lowered.
0, one side in the front-rear direction and at least one side
Can easily enter the lifting table 20 from the installation location on the side
A slope member 21 having a functioning slope portion;
1 is a parallel link machine operated by operating the operation lever 25
It is attached to the elevating table 20 via a
Whether the member 21 is located at the periphery of the lifting table 20
The wheelchair is moved upward and locked to prevent the wheelchair from falling off.
To get on and off the elevator in the front-rear direction and at least
It was also possible from one side. [0005] [Embodiment] Hereinafter, a description will be given of an embodiment with reference to the drawings in detail of the present invention. 1 is a base frame, and a vertical frame 1
a and the horizontal frames 1b, ‥ form an E-shaped frame in plan view. Also, the tip of the horizontal frame 1b, ‥
It is connected and fixed by the reinforcing plate 2. This vertical frame 1
A column 3 extending vertically upward is fixed to a substantially central portion of a. Reference numeral 4 denotes a movable frame which is fitted to the column 3 so as to be vertically movable. An elevating mechanism 5 is provided at the upper end of the movable frame 4.
Are provided so that the movable frame 4 can be moved up and down as appropriate. The elevating mechanism 5 according to the present embodiment is configured to screw a screw shaft and a screw cylinder, and move up and down by moving the screw shaft. Reference numeral 6 denotes a screw shaft, which is screwed to a screw cylinder 7 attached to the upper end of the support column 3, and the upper end of which is the movable frame 4.
The bearing 9 is supported via a bearing 10 on a metal 9 provided via a bracket 8 attached to the bracket 9. 11
Is a hollow stepped metal integrally attached to the upper end of the screw shaft 6, and a rotating handle 13 is rotatably attached to the upper portion via a universal joint 12. Reference numeral 14 denotes a guide boss of the rotary handle 13, which is fixed to a cover 15 provided at the upper end of the movable frame 4. Reference numeral 16 denotes a coil spring wound around the outer periphery of the stepped metal 11, one end of which is locked to the fixing member 17 so that the stepped metal 11 does not rotate freely. Reference numerals 18 denote side frames fixed to the front and rear wall surfaces of the movable frame 4, respectively, and table support members 19, 19, and. Reference numeral 20 denotes a lifting and lowering table on which a wheelchair is placed, which is substantially rectangular in plan view.
9, 19, and are integrally mounted. Reference numeral 21 denotes an inclined member which is provided in an L-shape along the rear side of the elevating table 20 and the peripheral edge of the opposite side where the column 3 is located, and which is inclined downward toward the outside. Reference numeral 22 denotes a bracket attached to the left and right side portions of the table support member 19. The front end of a U-shaped link 23 which is supported by the bracket 22 and has both sides bent is vertically rotated. It is provided movably. The left end of the link 23 is pivotally attached to the slope member 21, the right end of the link 23 is formed in a convex shape in plan view to bypass the movable frame 4, and the rear end is formed of the slope member 21. A parallel link is configured so as to be pivotally attached to a connecting rod 24 connected to the right end, and the slope member 21 moves up and down horizontally. Reference numeral 25 denotes an operation lever which can appropriately operate the parallel link, and is integrally attached to the link 23. Further, a locking member 26 is provided on the side frame 18 so that the slope member 21 is held upward, and the operation lever 25 is configured to be detachable. [0009] Next, a description will be given of the operation of the above example. First, as shown in FIG. 1, the elevator according to the present invention is installed such that the front side is very close to the step. When there is an obstacle such as a wall on the left and right sides, the support 3 is installed close to the wall side as shown in FIG. In this state, a wheelchair on which a physically handicapped person or an elderly person is riding is operated and positioned on the elevating table 20. At this time, it is common to enter from the back of the elevator, but since there is a space without obstacles on the rear and left sides of the elevator, the installation place is small and entry from behind is difficult. In this case, it is possible to enter from the left side or the left rear side. Also, the slope member 2
1 forms a slope, so that the vehicle can easily enter. [0010] After entering the wheelchair, as shown in FIG. 4 by operating the operation lever 25 to rotate the slope member 21 upward. Then, when the operation lever 25 is locked by the locking member 26, it is held in this state. Then, the slope member 21 forms a safety frame member on the rear side and the side of the elevating table 20 that plays a role of preventing the wheelchair from being stopped by a wheel or preventing the wheel from falling off, so that an extremely safe state is achieved. [0011] Then, the rotary handle 13 screw shaft 6 is rotated engineered to screwed upwards, the movable frame 4 is moved upward together with the screw shaft 6. Therefore, the lifting table 20 provided integrally with the movable frame 4 moves up. Then, the rotating handle 13 is further rotated to raise the elevating table 20, and the elevating table 20 is moved up.
When the upper surface substantially matches the upper surface of the step, the rotating handle 1
The rotation operation of Step 3 is stopped. In this state, the wheelchair can be operated and easily moved to the step upper surface side. At this time, as shown in FIG. 6, the coil shaft 16 is wound around the outer periphery of the stepped metal 11 attached to the upper end, and the rotation of the screw shaft 6 is regulated by the tightening force and the frictional force. If the rotary handle 13 is not forcibly rotated, the screw shaft 6 automatically rotates and the elevating table 20 does not descend. In addition, when going down a step, the operation just opposite to the above may be performed. As is apparent from the above description, since the elevator for a wheelchair according to the present invention has a space formed in the rear and side portions, it can enter the elevation table from the side as well. The space required in the direction can be made extremely short, and it can be installed at the entrance of ordinary homes, etc., and a safety frame member can be appropriately configured in that space, so that it is a highly safe wheelchair elevator. became.

[Brief description of the drawings] FIG. 1 is a partially simplified overall side view. FIG. 2 is a rear view thereof. FIG. 3 is a plan view thereof. FIG. 4 is an overall side view of a state in which a safety frame portion is operated. FIG. 5 is an overall side view of a state where a lifting table is raised. FIG. 6 is a partially simplified sectional view showing a lifting mechanism. [Explanation of symbols] 1 Base frame 5 Lifting mechanism 20 lifting table 21 Frame member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A61G 3/00 B66F 3/08 B66F 3/12 B66F 7/02 B66F 7/06

Claims (1)

(57) [Claim 1] An elevating table 20 which is at least large enough to accommodate a wheelchair and has a substantially rectangular shape in plan view is provided on an upper portion of a base frame 1 installed on the ground side, the tightening become interposed elevating mechanism 5 between the lifting table 20 appropriately vertically movably the base frames 1, yet on the periphery of the elevating table 20, at least left and right longitudinal side one
Easily enter the lift table 20 from the installation location
A slope member 21 having a possible slope portion;
21 is a parallel link operated by operating the operation lever 25
Attached to the lifting table 20 via a mechanism,
From the state where the surface member is located at the periphery of the lifting table 20
It is moved upward and locked to provide a safety frame to prevent wheelchairs from falling off.
To get on and off the elevator
An elevator for wheelchairs, which can be operated from one side .