JP3190014B2 - Chair type elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair-type elevator which can be safely used when using a chair-type elevator, particularly when moving to the upper floor.

[0002]

2. Description of the Related Art FIG. 9 shows an example of a conventional chair type elevator. A chair type elevator 120 has a chain 1 attached to a rail 122 fixed to a end of a stair 127 by a support 128.
The ascending and descending device is moved up and down via a sprocket which is rotated by a rotary driving body (not shown) built in the elevator main body 123 screwed into 29.
Reference numeral 130 denotes a chair fixed on the elevator main body 123, and the chair 130 includes a seat 131 mounted on the elevator main body 123, a backrest 132, and a pair of armrests 133 attached to both sides of the backrest 132. It is composed. Also, 1
26a is a start button 126 attached to the armrest 133 for starting up and down.
Reference numerals a and 126b denote emergency stop buttons, and reference numeral 125 denotes a rotatable footrest.

[0003] The chair type elevator 120 is seated on a chair 130 in a state facing the stairs 127 side, and a start button 126 a
When the is pressed, the chair type elevator 120 moves up and down through the chain 129, and stops at a predetermined place (upstairs or downstairs) when it is detected by a detector (not shown) (limit switch type detector or the like). Chair 130 facing the 127 side
Get off from.

[0004]

At this time, since the person descends while facing the stairs, he must step on the stairs,
In particular, on the upper floor, there is a danger of falling off the stairs if the wobble occurs. Therefore, the present invention provides a chair-type elevator that eliminates such inconveniences.

[0005]

According to a first aspect of the present invention, there is provided a chair type elevator having a horizontally rotatable chair on a main body of the elevator, and a lock corresponding to a lifting state and a storage state on a main body side (or a chair frame side). A hole is provided, and each lock hole can be attached to and detached from the lock hole on the frame side (or main body side) of the chair, and a biased lock body is always provided on the lock hole side, and a lifting and lowering extension is projected from the lock body. Then, the inclined piece formed on the operation lever can be brought into contact with the elevating and extending protrusion.

In other words, by operating the operating lever, the inclined piece moves up the lock body via the elevating projecting body, so that the lock body is detached from the lock hole to enable the chair to rotate horizontally. When the operating lever is released, the lock body is inserted into the lock hole by the elastic body to be in a locked state (rotation of the chair is prohibited).

[0007] Therefore, when the chair is turned horizontally by operating the operating lever to unlock the chair when getting off the chair, it is possible to get down on the floor at right angles to the stairs side, that is, on the floor upstairs. It is possible to get off.

[0008]

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view of a chair type elevator having different lifting means from the conventional one, FIG. 2 is a side sectional view of the chair type elevator, and FIG. 3 is a front sectional view of a seat body of the chair. 4 is A to A
FIG. 5 is a view taken in the direction of arrows, FIG.
FIG. 6 is a view as seen from arrows D to D, and FIG. 7 is a view as seen from arrows C to C.

The chair type elevator 1 comprises an elevator body 1a and a chair 10 installed on the body 1a. The chair 10 is placed on the elevator main body 1a, and comprises a seat 11 having a detachable front end, a backrest 16 and a pair of armrests 17 attached to both sides of the backrest.
Reference numeral 12a denotes a start button for starting up and down, which is moved up and down via a control device (not shown), and performs an emergency stop operation by pressing an emergency stop button 12b. Also, reference numeral 13 denotes a footrest, which may or may not rotate. Note that the chair type elevator 1 moves up and down along the upper guide body 4a and the lower guide body 4b provided on the side of the stairs 2, and the upper guide body 4a and the lower guide body 4b in this example are formed by pipes. It is.

As shown in FIG. 2, a first upper roller 5a and a first lower roller 5b sandwiching the upper guide body 4a and a second upper roller 5b sandwiching the lower guide body 4b are provided in the elevator body 1a. The roller 6a and the second lower roller 6b are attached, and the first
The lower roller 5b and the second lower roller 6b are pressed against each other by an elastic body (gas spring) 7. Then, the chair type elevator 1 rotates and drives the second upper roller 6a via a rotation drive (not shown) to rotate and lift the other rollers via a chain (not shown).

A horizontally rotatable chair 10 is mounted on the main body 1a via a base 1b.
As shown in FIG. 4 (the mounting holes are omitted), lock holes 19a and 19b that allow the insertion of the ends of the lock body 22 corresponding to the elevating state and the storage state, which will be described in detail later, are provided on the rotating shaft. The hole 20 is formed at a position of 90 ° around the fitting hole 21 for mounting. The rotating shaft 20 is provided on the frame 11a of the seating body 11.
Are fixed, and the main body 1a is
b, and can be rotated horizontally.

A cylindrical body 18 is formed in the frame 11a, and a convex lock body 22 which can be inserted into the lock holes 19a, 19b is provided in the cylindrical body 18 with an elastic body (such as a coil spring) 23. Through the lock hole 1 at all times.
The lock body 22 is urged toward the 9a and 19b sides, and the lock body 22 is provided with an elevating and extending protrusion 24 protruding therefrom.

On the other hand, the inclined piece 2 which comes into contact with
5 is provided in the groove 30 so as to be movable left and right, and is connected to the operation lever 28. An elastic body 29 is inserted between the adjusting body 27 fixed to the operating lever 28 and the reinforcing body 27a of the frame 11a, and is constantly biased to the outside of the chair. . Therefore, at all times, the raising and lowering projectile 24
7A, as shown in FIG. 7A, the inclined piece 25 is in contact with the horizontal position, and the end of the lock body 22 is provided with a lock hole 19a.
19b.

A detector (limit switch) 50 for a safety device is attached to the main body 1a.
The tilt base 50a is attached to the base 1b so that the lock body 22 operates (ON) with the lock body 22 inserted into the lock hole 19a. That is, since the chair 10 is rotatable, the lock body 22 at the position where the chair 10 can be moved up and down is locked with the lock hole 19a.
When the sensor is inserted into the sensor, the detector 50 is activated, and a detection signal from the detector 50 enables activation of a rotary driving body (not shown), thereby ensuring safety.

Next, the operation of the operation lever 28, that is,
The up / down (use) state and the rotating state of the chair will be described. As shown in FIG. 7A, the posture of the chair 10 which can be raised and lowered is directed to the side of the stairs 2 shown in FIG.
Cannot be rotated because the end of the rod is inserted into the lock hole 19a, and the detector 50 is in the "ON" state, so that a rotary drive (not shown) can be activated, and the user can sit on the chair. You can safely go up and down. Then, when the start button 12a for starting the elevating is pressed after sitting on the chair, the elevating and lowering is performed via a control device (not shown), and when a detector (a limit switch type detector or the like) detects this, a predetermined Stop at a location (upper or lower floor).

On the other hand, when the user gets off the chair 10, the user grips the knob 28a of the operation lever and pushes it.
The inclined piece 25 moves against the urging force of
Is detached from the lock hole 19a via the raising and lowering protruding body 24, so that the chair 10 becomes rotatable (FIG. 7B). Then, when the chair 10 is rotated and the operation lever 28 is released until the lock body 22 is located immediately above the lock hole 19b, the inclined piece 25 is returned to the original state by the elastic body 29. Is attached to the lock hole 19b to inhibit the rotation of the chair 10. The direction of the chair 10 in this state is rotated by 90 ° as shown in FIG. 1, and when getting off, the foot can step on the floor upstairs and can get down safely.

As described above, through the operation lever 28,
Since the chair 10 can be easily rotated in the unlocked state and the rotation of the chair 10 can be prohibited in the locked state, it is particularly safe when getting off the chair 10.
The operating lever 28 is unlocked by pushing, but by configuring the inclined piece 25 and the elastic body 29 in reverse, the operating lever 28 can be unlocked by pulling it. , 19b
Is formed on the base 1b and the lock body 22 is formed on the frame 11a, but they may be formed in reverse. Further, since two lock holes 19a and 19b are provided, one direction (90
Regarding the rotation of ゜), it is needless to say that a lock hole can be further provided so as to be rotatable downstairs as well, and that the lock hole can be formed at an appropriate rotation angle depending on the formation position.

Next, with reference to FIGS. 8A and 8B, a description will be given of the housing mechanism of the footrest 40. The same parts as those in FIG. A footrest 40 is attached to a lower portion of the main body 1a.
a is mounted via an arm 35 rotatable about a fixed rotation shaft 33. On the other hand, the sitting body 11 is formed so as to be able to move up and down on a rotating shaft 11b. A side of the footrest 40 and a side of the seat 11 are connected by connecting rods 36 via rotating shafts 11c and 40a.

Therefore, when the stool 11 is in a horizontal state, the footrest 40 is also in a horizontal state, and when the footrest 40 is in a retracted state (ascending rotation), the footrest 40 is connected via a connecting rod 36.
Also shifts to the storage state. As described above, since the stool 11 and the footrest 40 can be simultaneously moved up and down and rotated, the footrest 40 can be brought into the use state and the storage state by operating the stool 11 alone. Note that the chair type elevator in the above is a type of elevating means using the upper guide body 4a and the lower guide body 4b, but it goes without saying that it is effective regardless of the chain type shown in FIG.

[0021]

The chair attached to the chair type elevator according to the present invention comprises:
Since the chair can be easily rotated via the operation lever, it is possible to directly descend on the floor on the floor, which is a direction perpendicular to the stairs side, at the time of getting off, so that safety can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a chair type elevator.

FIG. 2 is a side sectional view of a chair type elevator.

FIG. 3 is a front sectional view of a seat body of the chair.

FIG. 4 is a view as seen from arrows A to A in FIG. 3;

FIG. 5 is a view as seen from arrows B to B in FIG. 3;

FIG. 6 is a view as seen from arrows D to D in FIG. 5;

FIG. 7 is a view as seen from arrows C to C in FIG. 5;

FIG. 8A is a diagram showing a sitting body and a footrest, and FIG. 8B is a diagram showing its operation.

FIG. 9 is a view showing a conventional chair type elevator.

[Explanation of symbols]

 1a Chair type elevator main body 10 Chair 11 Sit-down body 19a, 19b Lock hole 22 Lock body 24 Elevating extension body 25 Inclined piece 28 Operating lever 36 Connecting rod 40 Footrest

Continuation of front page (56) References JP-A-57-9684 (JP, A) JP-A-57-4874 (JP, A) JP-A-8-12240 (JP, A) European Patent 560433 (EP, B1) U.S. Pat. No. 5,992,935 (US, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66B 9/00-9/193

Claims (1)

(57) [Claims] An elevator main body is provided with a horizontally rotatable chair, and lock holes are provided on a main body side (or a chair frame side) corresponding to a lifting state and a storage state, and a chair frame body side (a body side). A lock body in a biased state is provided on the lock hole side, which can be attached to and detached from each of the lock holes at all times. A chair type elevator capable of abutting on a body.