JPH0640698A - Obliquely moving lift - Google Patents

Abstract

PURPOSE: To provide an obliquely moving lift capable of allowing a wheel chair or the like to easily go up and down over stairs with a few steps by slidably accommodating a sub-platform beneath a platform of a vertical lift of a conventional type and causing the sub-platform to be horizontally moved along with an upward movement of the vertical lift. CONSTITUTION: A plate-shaped sub-platform 10 is provided beneath a platform 9 so as to horizontally slide in accordance with upward and downward movements of a vertical lift section. Horizontal transition at an upper end of sub-crossing supports 6, 7 is converted into a horizontal movement of the sub-platform 10 by amplifying its distance with an inverted gear 12, a lack 13, and a passive lack 14. The sub-platform 10 is configured so as to be suspended between an upper face of the stairs and the vertical lift section as a both-end supported beam when the upward movement of the vertical lift is completed. Thus, a helper's labor is reduced when a wheel chair is to go up and down along the stairs. In addition, a tilting moment to be acted upon the vertical lift can be eliminated, and thus the lift can be used for raising and lowering general goods along stairs.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] It is used as a means for eliminating the barrier of stairway difference encountered when moving people and objects, and is particularly effective when moving on a wheelchair. is there. [Prior Art] A general vertical lift is used for movement outdoors when there is a vertical height difference, such as from the ground to the floor of a house. However, there is still no example of a solution technology for slanting movement on stairs consisting of several steps, and at most, it can be pushed over by passing a long flat plate such as a foot plate. [Problems to be solved by the invention] When using a foot plate, a long flat plate is required to loosen the slope angle and reduce the effort of climbing, and a wide place beyond the space of the stairs to the front In addition, most of the original stairs are covered, and normal use of stairs is greatly impaired. [Means for Solving the Problems] It is the present invention to improve the above situation, and it will be explained with reference to the drawings. As shown in FIG. 2, unlike the normal pantograph lift, the main cross columns (1 ) And (2) are fixed at both ends by fixed hinges (5) to the upper and lower bases (3) and (4), respectively, and both ends of the sub-crossing columns (6) and (7) to be crossed with each other. Rolls along the base with wheels (8). Now, for example, if you use a hydraulic cylinder (15) to apply force,
The crossing angle of the crossing columns is changed by the expansion and contraction force, and the vertical distance is changed while maintaining the parallel relationship between the upper and lower bases.However, the present invention is different from the normal lift because the vertical distance changes. The two bases also have a horizontal displacement with respect to each other, which eventually follows an arcuate oblique path and performs an operation suitable for the purpose of the oblique lift. Furthermore, in order to achieve this purpose, the following two measures are repeated. First, when the above horizontal movement distance does not reach the uppermost stage of the target stairs, the auxiliary platform (10) is horizontally extended by utilizing the horizontal displacement of the upper ends of the auxiliary cross columns (6) and (7). The other is a double-supported beam structure in which the tip of a horizontally moved platform is suspended on the uppermost staircase surface so that an unbalanced load moment is not applied to the lift body. These will be described in detail below. An example of the gear mechanism is shown in FIG. A reversing gear (12) is attached to the platform (9), and the reversing gear (12) is attached to the sub-cross columns (6) and (7).
Attach the rack (13) that moves horizontally while meshing with. A driven rack (1) sandwiching a reversing gear (12) between
4) is fixed to the secondary platform (10). As a result, the backward horizontal displacement of the upper end of the secondary cross column with respect to the platform (9) is converted to the opposite direction to push the secondary platform (10) in the forward direction, eventually compensating for the insufficient amount of movement of the platform. Although it is shown as a single gear in the figure, it is possible to combine large and small gears and
The advance rate of 0) can be freely returned. In this way, the tip of the platform that has reached the top staircase surface sufficiently or the tip of the sub-platform becomes the load fulcrum here. As a result, you will reach the purpose of moving diagonally without difficulty. [Operation] 1) First, when ascending, a wheelchair, for example, is set on the platform (9) of the lift that is installed in the space under the stairs and is folded low, and the wheelchair is fixed to the platform by an appropriate ordinary fixing means. To do. 2) When the switch (11) is operated, the lift rises in an arc, the platform (9) reaches the height of the uppermost stairs, and its tip approaches the uppermost step edge of the stairs and rides on the corner edge. 3) Alternatively, in the situation where the top stairs cannot be reached only by the horizontal movement distance of the platform (9),
Sub-platform (1 with adjusted amplification travel distance in advance)
0) leads ahead over the tip of the platform (9) and rides on the top edge of the stairs. 4) Next, unlock the wheelchair, proceed on the platform and the sub-platform, and move to the uppermost stage of the stairs to complete the ascending stage. 5) During that time, the tip of the platform or sub-platform rides on the final stairs and forms a doubly supported beam with respect to the applied load. Therefore, a moment as an unbalanced load is applied to the lift. It does not receive an unreasonable load as a row lift. 6) When descending, it is sufficient to follow the above ascending procedure in reverse. [Effect] Until now, in such a situation, two or more caregivers were forced to lift the wheelchair from both sides to climb the stairs. In addition, since the normal lift can only vertically move up and down, the actual application scene was extremely limited,
The present invention can be applied in many fields, and the effect of reducing care effort is great. In short, it breaks the common sense of the pantograph-type lift and uses the fact that it deviates from the structure originally designed to lift vertically and shifts sideways, and incorporates the uppermost staircase surface as a structural structure that supports an unbalanced load applied to the lift. As a result, the effect of the moment load applied to the lift is minimized and the standing condition of the lift is maintained, which is a key point in establishing the present invention and exerts an effect. As described above, the wheelchair assistance device has been described, but it is clear that the same effect can be obtained as a diagonal lift for moving general cargo.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a diagram before raising, FIG. 2 shows a diagram after raising, and FIG. 3 shows an example of a gear mechanism. 1, 2, main cross column 3, upper base 4, lower base 5, fixed hinges 6, 7, sub cross column 8, wheel 9, platform 10, sub platform 11, switch 12, switch 12, reverse gear 13, rack 14, driven rack 15, hydraulic cylinder

Claims (1)

[Claims] As a means for moving up and down a staircase consisting of several steps, a structure for vertically moving up and down a person, an object, a vehicle, etc. using a hydraulic power source, an air pressure, an electric force, a human power, etc. In the lift, a) Among the cross struts that make up the pantograph, both ends of the pair of main cross struts (1) and (2) are connected to the upper and lower bases (3).
And (4) are connected to each other by fixed hinges (5), and wheels (8) at both ends of another pair of sub-intersection struts (6) and (7) intersecting with them are also rolled to the base. It is possible to move the platform (9) mounted on the upper base (3) horizontally as well as moving it vertically. (B) Furthermore, reverse the relative movement of the upper end of the sub-crossing column to the platform (9). A diagonal lift that can be superposed on the sub-platform (10) with gears (12) etc. to apparently amplify the horizontal displacement amount of the platform (9).