JPH0826627A - Simple type elevator - Google Patents

Abstract

PURPOSE:To reduce the setting space by composing an arm mechanism to which a box body for conveyance is installed, allowable to expand and contract between a folded condition and a specific rising condition. CONSTITUTION:An arm mechanism is composed by eight arms 7, for example, by combining the neighboring arms rotatable through connections 8a, 8b, 8c, and 8d, so as to form a rectangle by four arms 7, and connecting the connected sets to form plural sets vertically, allowable to expand and contract between a folded condition and a specific rising condition. Two sets of arm mechanisms are provided, a box body 1 for conveyance is installed to one connection 8d on an imaginary center line X of both arm mechanisms, and it is composed by fixing the box body through the opposing surface of the box body. By providing the arm mechanisms symmetrically to both side surfaces of the box body 1, the vertical movement of the bos body 1 (that is, the elevating operation of an elevator) is stabilized. Consequently, the setting space can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simplified elevator, and more particularly to an arm type simplified elevator.

[0002]

2. Description of the Related Art A rope type elevator is known as a general elevator. The vertical movement of the box body of the rope type elevator is performed by winding up and rewinding the wire rope attached to the box body by the rotation of the motor.

[0003]

However, this rope type elevator has the following problems. Since elevators are usually installed in buildings with 4 or more floors,
It requires a large amount of power, a large drive mechanism required for it, and a large installation space. Therefore, there is a problem that it is uneconomical to install such an elevator in a two- or three-story building, and the installation space cannot be taken. In addition, since the wire rope gradually expands after being used for many years and the strength thereof decreases, there is also a problem that the wire rope must be replaced in about 10 years from the viewpoint of safety.

The present invention has been made in view of these points, and an object thereof is to provide an economical simple elevator having a small installation space.

[0005]

In order to achieve the above object, a simplified elevator according to the present invention is a group in which four arms are rotatably connected to each other by a connecting portion so that four arms form a quadrangle. A plurality of vertically coupled sets, and an arm mechanism configured to extend and contract between a folded state and a predetermined standing state, and a transport attached to one of the coupling portions on the virtual center line of the arm mechanism. And a drive means for extending and contracting the arm mechanism.

The driving means includes, for example, a screw in which a left-handed male screw and a right-handed male screw are coaxially formed,
Each of the male screws includes a female screw member having a female screw formed therein and a motor for moving the screw.

There may be two arm mechanisms, and the boxes may be fixed to the facing surfaces of the boxes.
A guide member for guiding the vertical movement of the box body may be provided.

[0008]

According to this structure, since the carrying box is attached to one of the connecting portions on the virtual center line of the extendable arm mechanism, the arm mechanism is driven by the drive means so that the arm mechanism is in the folded state. When the arm mechanism is contracted, the box body moves downward, and when the arm mechanism is extended by the driving means so that the arm mechanism is in a predetermined rising state, the box body moves upward.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a simplified elevator according to the present invention will be described below with reference to the drawings. FIG. 1 is a right side view showing a folded state (A) and a predetermined rising state (B) of a simplified elevator embodying the present invention, and FIG. 2 is a perspective view thereof. Further, FIG. 3 is an enlarged perspective view showing a main part of the arm mechanism.

The embodiment shown in FIGS. 1 to 3 comprises an arm mechanism, a carrying box 1 and a driving means. The arm mechanism is composed of a total of eight arms 7 such that the four arms 7 form a quadrangle so that the adjacent arms can rotate freely.
A plurality of sets connected by 8b, 8c, and 8d are vertically connected to each other, and are in a folded state {FIG. 1 (A), FIG. 2 (A)} and a predetermined rising state {FIG. 1 (B), FIG. (B)} is configured to be expandable and contractible. In addition, the connecting portions 8a to 8d
Has a rotatable shaft structure.

There are two arm mechanisms described above, and the carrying box 1 has the connecting portions 8b, 8 on the virtual center line X of each arm mechanism.
It is attached to the coupling portion 8d, which is one of the boxes d, and has a structure in which the boxes 1 are fixed on the opposing surfaces of the box 1 as shown in FIG. By arranging the arm mechanisms symmetrically on both side surfaces of the box body 1 in this manner, the vertical movement of the box body 1 (that is, the elevator lifting operation) is stabilized. Further, a frame 9 is provided as a guide member for guiding the vertical movement of the box body 1, and the vertical movement of the box body 1 is further stabilized by the frame 9.

The drive means is composed of a screw 3, female screw members 6L and 6R, and a motor 2, and is configured to extend and contract the arm mechanism. Screw 3
Is rotatably supported by bearings 4 and 5 and has a left-handed male screw 3
L and clockwise male screws 3R are formed coaxially on the left and right with the bearing 5 as the center. Female screw member 6
Female screws that are screwed into the male screws 3L and 3R are formed on the L and 6R, respectively. Further, the motor 2 constitutes a drive source for moving the screw 3.

Since the left-handed male screw 3L and the right-handed male screw 3R are coaxially formed on the screw 3, when the screw 3 is rotated in one direction by the motor 2, the female screw member 6L and the female screw member are rotated. The distance between the female screw member 6L and the female screw member 6R becomes narrower when the screw is rotated in the other direction.

When the distance between the female screw member 6L and the female screw member 6R is increased, the connecting portion 8d approaches the bearing 5 side, and the arm mechanism is in the folded state {FIG. 1 (A), FIG. 2 (A)}. To be shortened. Since the box 1 is attached to the connecting portion 8d, the box 1 moves downward while being guided by the frame 9 at this time. Female screw member 6L and female screw member 6
When the distance from R becomes narrower, the coupling portion 8d moves away from the bearing 5, and the arm mechanism rises to a predetermined state (Fig. 1).
(B), FIG. 2 (B)}. Connecting part 8d
Since the box body 1 is attached to the box, at this time the box body 1
Moves upward while being guided by the frame 9.

As described above, the arm mechanism to which the carrying box 1 is attached is folded by the driving means {FIG. 1 (A), FIG. 2 (A)} and a predetermined rising state {FIG. 1 (B) and FIG. 2 (B)} is configured to be expandable and contractable, so that an economical simple elevator having a small installation space can be realized. Such a simple elevator can be applied to high-rise buildings, but is particularly suitable for low-rise buildings such as 2-3-storey buildings and general houses.

As shown in FIG. 2, the rotation of the screw 3 is performed by using two synchronized motors 2.
A single motor 2 may be used so that the two screws 3 rotate simultaneously with a belt or the like.
Further, the screw 3 may be divided into two, one having a clockwise male screw and the other having a counterclockwise male screw, and each of them may be rotated by a separate motor. In addition,
If a means for manually rotating the screw 3 from inside or outside the box 1 is provided instead of (or in addition to) the motor 2, a simpler elevator can be obtained.

[0017]

As described above, according to the simplified elevator of the present invention, the arm mechanism to which the transport box is attached is expanded and contracted by the drive means between the folded state and the predetermined rising state. By freely configuring, it is possible to realize an economical simple elevator with a small installation space.

Further, the vertical movement of the box body is stabilized by fixing the box body on the opposing surfaces of the box body by the two arm mechanisms and by providing the guide member for guiding the vertical movement of the box body. be able to.

[Brief description of drawings]

FIG. 1 is a right side view showing a folded state and a predetermined rising state according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a folded state and a predetermined rising state of the embodiment of FIG.

FIG. 3 is an enlarged perspective view showing a main part of the arm mechanism of the embodiment of FIG.

[Explanation of symbols]

 1 ... Box 2 ... Motor 3 ... Screw 3L ... Counterclockwise male screw 3R ... Clockwise male screw 6L, 6R ... Female screw member 7 ... Arm 8a, 8b, 8c, 8d ... Coupling part 9 ... Frame X ... Virtual Center line

Claims (4)

[Claims] 1. A plurality of sets in which four adjacent arms are rotatably connected by a connecting portion are connected in a vertical direction so that four arms form a quadrangle, and a pair of a folded state and a predetermined rising state is formed. A simple type comprising an arm mechanism configured to extend and retract between spaces, a transport box attached to one of joints on the virtual center line of the arm mechanism, and drive means for extending and contracting the arm mechanism. Elevator. 2. The driving means comprises a screw in which a left-handed male screw and a right-handed male screw are coaxially formed, and a female screw member formed with a female screw to be engaged with each of the male screws. The simplified elevator according to claim 1, comprising a motor for moving the screw. 3. The simplified elevator according to claim 1, wherein there are two said arm mechanisms, and each box body is fixed by the facing surface of said box body. 4. The simplified elevator according to claim 1, further comprising a guide member for guiding the vertical movement of the box body.