JP2003192249A - Household elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify a device for preventing fall of an elevating body in a household elevator communicating a lower floor and an upper floor in a house. <P>SOLUTION: This household elevator 1 is constituted by a box shaped elevator shaft 2 for communicating the lower floor and the upper floor, and the elevating body 4 equipped with first to fourth rollers 7, 8, 10 and 16 rolling along first to fourth guide rails 12, 13, 15 and 17 provided on four sides of the elevator shaft 2. The elevating body 4 is suspended by first and third belts 22 and 24 tensely wounded out of a winding device D provided in the elevator shaft 2. Further, a second belt 23 is connected between the elevating body 4 and the winding device D which is usually not tensed and is tensed when the first and the third belts 22 and 24 are cut off. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of household elevators installed in general houses such as two-story houses.

[0002]

2. Description of the Related Art In recent years, household elevators have been installed in ordinary houses so that elderly people and people with disabilities can freely move between the downstairs and upstairs to obtain a comfortable living environment. Has been proposed. By the way, such a domestic elevator is configured to include a hoistway provided so as to communicate with each floor, and an elevating body that vertically elevates and lowers the hoistway. , The rope is wound up from the winding device arranged in the hoistway to the lifting body, and the lifting and lowering movement of the lifting body is performed by the winding and unwinding operation of the rope accompanying the forward and reverse rotation of the winding device. It is known to do so.

[0003]

By the way, in such an elevator, there is provided a structure for preventing the elevation body from falling due to the cutting of the rope. In the prior art, for example, a drive device for the elevation body is provided. It is known that a speed detecting device for detecting the descending speed of the ascending / descending body is provided and the elevating / descending body is configured to make an emergency stop when the speed detecting device detects a speed higher than a preset speed. However, in such a device, in addition to the drive device for the lifting body, a separate device for fall prevention such as a speed detection device is required, which increases the number of parts and complicates the structure, and inevitably increases the size. There is a problem that the present invention is not only used, but also that it is expensive and difficult to spread for household use, and there is a problem to be solved by the present invention.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances in order to solve these problems, and is a home for connecting a lower floor and an upper floor in a house. In a domestic elevator, the elevator includes a box-shaped hoistway that connects a lower floor and an upper floor, and a hoist that vertically moves the hoistway through guide rails. The main rope body that is unwound in a tension state from the winding device that is arranged in the above to suspend the lifting body and the main rope body that is normally in a non-tensioned state and is tensioned when the main rope body is cut to suspend the lifting body. It is connected to the accessory cord. And
By doing so, it is possible to prevent the elevating body from falling without separately providing brake means or the like. In this case, the main and sub ropes of the present invention may be configured by belt bodies that are wound around the winding device in a laminated manner. Further, in this structure, the lifting body of the present invention may be connected to two main ropes and one sub rope. Also, in this one,
The sub-cord of the present invention can be held in a temporary tension state by being stretched by an ammunition machine, and thereby the sub-cord can be smoothly wound around the winding device. Furthermore, in this thing, the bullet of this invention can be provided in the raising / lowering body. Further, in this structure, the winding device of the present invention is arranged in the upper part of the hoistway, and the main and auxiliary ropes are wound around a winding wheel provided with the same axis of the winding device. Since it is not necessary to provide a winding device dedicated to the sub-rope body, the members can be used in common.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a first embodiment of the present invention will be described with reference to the drawings of FIGS. In the drawings, reference numeral 1 denotes a domestic elevator provided in, for example, a corner of a living room in a two-story house, and the elevator 1
Has a compact structure with a maximum of two passengers. The hoistway 2 constituting the elevator 1 is formed in a vertically long box shape connecting the first and second floors, and the hoistway 2 corresponds to a unit F corresponding to the first floor and a ceiling between the first floor and the second floor. It is configured to be divided into a unit M and a unit S corresponding to the second floor so that it can be easily attached by retrofitting to an existing house.

In this way, the hoistway 2 including the unit F corresponding to the first floor, the unit M corresponding to the ceiling, and the unit S corresponding to the second floor.
Are the front and rear side portions 2a, 2b and the left and right side portions 2 respectively.
c and 2d and upper and lower side surface portions 2e and 2f, and the left and right side surface portions 2c and 2d are respectively constituted by a frame member 2g having four circumferences and a glass plate member 2h. Further, the front side surface portion 2a of the unit F corresponding to the first floor and the unit S corresponding to the second floor of the hoistway 2 is configured as outer doors 3F and 3S that are opening and closing doors, and these outer doors 3F and 3S are The frame member 3a on four sides is composed of a frame member 3a and a glass plate member 3b, and the frame member 3a on the right side in the drawing of FIG.
Are pivotally supported by the front frame member 2g via hinges 3c, whereby the outer doors 3F, 3S are set so that the door tip, which is the left edge, swings open / close in the front-rear direction. In addition, 3d is a handle provided in the vertical direction intermediate portion on the left end side on the outer surface of each outer door 3F, 3S.

On the other hand, 4 is an elevator body (elevator cage) for vertically moving up and down in the box of the hoistway 2, and the elevator body 4 includes front and rear side portions 4a, 4b, left and right side portions 4c, 4c.
d, a box shape surrounded by the upper and lower side surface portions 4e, 4f, and the front and rear and left and right side surface portions 4a,
4b, 4c, and 4d are dimensioned so as to closely face the front and rear and left and right side surfaces 2a, 2b, 2c, and 2d of the hoistway 2, respectively. The left and right side surfaces 4c and 4d are respectively composed of a frame member 4g and a glass plate member 4h. Further, the front side surface portion 4a serving as an entrance / exit portion to the lifting body 4
Is constituted by an inner door 5, and the inner door 5 is constituted by a frame member 5a such as a horizontal frame at four circumferences and an intermediate portion in the vertical direction and a glass plate member 5b, and the right frame member 5a is the right and left side portion 4d of the lifting body. Is pivotally supported by a front frame member 4g via a hinge 5c, whereby the inner door 5 is set so that the door tip side, which is the left end edge portion, swings open / close in the front-rear direction. In addition, 5d is an inner door 5
5e is a handrail attached to the inner surface of the left side surface portion 4c.
f is an operation switch.

Further, rear roller mounting brackets 6 are integrally formed at a plurality of vertical corners (two at the upper and lower sides in the present embodiment, which are four convenient points) at the two corners on the left and right sides of the rear portion of the lifting body 4. Each of the rear roller mounting brackets 6 is attached to the first roller 7 having a roller shaft 7a protruding rearward, and a roller shaft 8 protruding leftward and rightward.
Two rollers 7, 8 including a second roller 8 provided with a are rotatably supported. In addition, the left and right side surfaces 4
c, 4d Two places above and below each frame member 4g on the front side (four places for convenience)
The front roller mounting brackets 9 are integrally mounted on the front roller mounting brackets 9, and the third rollers 10 each having a roller shaft 10a protruding forward are rotatably supported on the front end faces of the front roller mounting brackets 9. Has been done.

On the other hand, the left and right side surfaces 2b of the hoistway 2,
A frame member 2g on the rear side of 2c is formed on a rear rail bracket 11 that is long in the vertical direction, and a projecting portion 11a that projects inward in the left-right direction is formed behind the rail bracket (frame member 2g) 11. A first recess 11b is formed on the protruding end surface of the protruding portion 11a. Then, a roller receiving body 11c formed of a resin material or the like and forming a running surface is fitted in the first concave portion 11b, whereby the first concave portion 11b portion projects rearward of the elevating body 4. The first guide rail 12 for rolling the one roller 7 is configured. Incidentally, the first guide rail 12 is set so that the roller receiving body 11c prevents the first roller 7 from swinging (positioning) to the outside in the left-right direction, and guides the movement in this state. Also, the rear rail bracket 1
The front surface of the first protruding portion 11a and the front thereof are the second and third recessed portions 11d, 11 which are recessed in the direction opposite to each other.
e is formed, and these second and third recesses 11d, 1
A roller receiver 11c similar to the above is fitted in 1e. As a result, these second and third recesses 11d, 11
Between e and e, the second roller 8 protruding to the left and right of the elevating body 4 is constituted by the second guide rail 13 for rolling, and the steady rest (positioning) of the second roller 8 in the front-rear direction is performed. It is set so that movement guidance is provided in the state in which it is performed.

On the other hand, the frame members 2g on the front left and right side portions 2b, 2c of the hoistway 2 are formed on the front rail bracket 14, and are arranged in the front-rear intermediate position of the front rail bracket 14 in the left-right direction. A pair of first and second recesses 14
a and 14b are recessed toward the opposite side. A roller receiving body 14c similar to the above is fitted in the first and second recesses 14a and 14b, and the first and second recesses 14a and 14b project to the front of the elevating body 4. A third guide rail 15 for rolling the three rollers 9 is configured, and the third guide rail 15 prevents the third roller 10 from swaying in the left-right direction (positioning).
It is set so that the user can be guided to move in the state of being performed.

Further, a roller shaft 16a of the fourth roller 16 is rotatably supported by the end surface of the inner door 5 in a state of protruding outward in the left-right direction. On the other hand, the front frame member 2g of the left side surface 2c of the hoistway 2 is formed on the front rail bracket 14 as described above, and the third guide rail 15 for the third roller 10 is formed on the front rail bracket 14. However, in this front rail bracket 14,
The third recess 14d is located in front of the third guide rail 15.
Is formed, and the third recess 14d and the third guide rail 15 are formed.
The fourth guide rail 17 is constituted by the groove bottom piece 15a. The fourth roller 16 is set so as to be loosely fitted to the fourth guide rail 17 to receive the movement guide. At this time, the roller receiving body 14e is fitted in the third recess 14d. The roller receiving member 14e is set so as to guide the fourth roller 16 in a forward swinging (positioning) manner. Further, the third recess 14d constituting the fourth guide rail 17 is formed to be long in the up-down direction so as to communicate the first and second floors, and the lifting body 4 of the third recess 14d is a unit corresponding to the first floor. A notch for allowing the fourth roller 16 to move forward (the inner door 5 swings open) at a position where the fourth roller 16 faces when stopped at the F portion or the second floor corresponding unit S portion. The portion 14f is formed. Thereby, the inner door 5 is set so that the fourth roller 16 can freely move in and out of the fourth guide rail 17 at the stop position on each floor, and can be integrally opened / closed together with the outer door 3F or 3S.

When the lifting / lowering body 4 moves up and down based on the winding and unwinding operations of the winding device D, which will be described later, the second, third and fourth rollers 8, 10 and 16 move up and down. The first roller 7 is fitted to the second, third, and fourth guide rails 13, 15, and 17 that are vertically connected to the path 2, and the first roller 7 faces the first guide rail 12, The first, second and third rollers 7, 8 and 10 are set to roll in a state of being guided by the first, second and third guide rails 12, 13 and 15. As a result, the lifting body 4 has the guide rails 12 and
Up and down movements are carried out while receiving the movement guidance of 3, 15, and 17, so that smooth and steady positioning up and down movements are made.
The space between the hoistway 2 and the vertically moving body 4 (opposing clearance) can be reduced, and the size can be reduced.

The inner door 5 and the outer door 3F of the unit F corresponding to the first floor at the stop position on the first floor, and the outer door 3 of the unit S corresponding to the second floor at the stop position on the second floor.
Although it will be opened and closed integrally with S, in order to make such a configuration, between the inner door 5 and the first-floor outer door 3F, and between the inner door 5 and the second-floor outer door 3S, respectively. Engaging means R is provided. That is, on the outer surface (on the side of the outer door 3F or 3S) of the inner door 5, the pin receiving body 18 constituting the engaging means R is integrally provided at the frame member (horizontal frame) 5a portion (vertical intermediate portion). Has been. The pin receiver 18
Is a space having a front-rear width sufficient for inserting the tip end portion 19a of the pin 19 described later in a removable manner and a left-right (lateral) width sufficient for allowing the predetermined movement described later for the pin tip portion 19a. It is a member in which the portion 18a is formed. still,
The front and rear pieces 18b and 18c arranged to form the void portion 18a of the pin receiving body 18 are provided with guide pieces 18d that are located at the upper and lower ends and are bent in directions that expand each other. The pin tip portion 19a is configured to be guided to the void portion 18a.

On the other hand, the pins 19 constituting the engaging means R are fixed to the inner surfaces of the first-floor outer door 3F and the second-floor outer door 3S, which are the inner door 5 side surfaces, respectively. It has a front end portion 19a and a base end portion 19b which are provided so as to face each other and are processed to be slightly sharp. The pin 19 of the first-floor outer door 3F is in a posture in which the base end portion 19b faces downward and the sharpened tip end portion 19a faces upward, and the base end portion 19b is fixed to the first-floor outer door 3F via the bracket 19c. ing. As for the mounting position of the pin 19 on the first floor, the tip portion 19a starts the insertion from the lower side of the pin receiving body void portion 18a of the inner door 5 slightly before the lifting body 4 reaches the first floor, and Four
Is set to such a position that the pin tip portion 19a enters into the void portion 18a and is engaged (see FIG. 8) when stopped. Further, the pin 19 is also provided on the inner surface of the outer door 3S on the second floor.
Is fixed, but the one on the second floor has a sharp tip 19
a is facing downward and the base end portion 19b is facing upward, and the base end portion 19b is fixed to the second floor outer door 3S via the bracket 19c. Also, with respect to the mounting position of the pin 19 for the second-floor outer door 3S, the tip portion 19a starts to be inserted from the upper side of the pin receiver void portion 18a of the inner door 5 just before the elevating body 4 reaches the second floor. The pin tip portion 19a is set to a position such that the pin tip portion 19a enters the void portion 18a and is engaged when the lifting body 4 is stopped.

In this way, the outer door 3F or 3S and the inner door 5 are integrated via the engaging means R when the elevating body 4 is stopped at a predetermined stop position on the first floor or the second floor. However, in this state, when the both doors 3F and 5 or 3S and 5 are opened and swung through the hinges 3c and 5c, respectively, the door bodies 3F and 5 or 3S and 5 are opened.
As shown in FIG. 6, the comrades oscillate while swinging relative to each other, and the relative movement is performed in the range of the left and right widths of the pin receiving body void portion 18a. The dimensions are set to allow the doors 3F and 5 or 3S and 5 to be opened to a predetermined opening position. Here, the inner door 5 moves up and down vertically in a steady-state and positioning manner when the fourth roller 16 is fitted to the fourth guide rail 17 on the door end side, so that the width of the pin receiver cavity 18a in the front-rear direction can be reduced. Pin receiving body 1 without making it particularly wide
8 and the pin 19 can be engaged with each other.

The winding device D is housed in a box-shaped casing 20 and incorporated in the upper surface of a four-sided frame-shaped upper side surface portion 2e of the hoistway 2. In the casing 20, a rotary shaft 21 which is located at a position facing the center of the upper surface of the lifting body 4 and faces in the front-rear direction is rotatably supported in a forward and reverse direction, and projects forward from the casing 20 of the rotary shaft 21. The driven sprocket 21a is integrally attached to the protrusion. Further, the first, second, and third winding wheels 21 are arranged on the rotating shaft 21 side by side in the front-rear direction.
b, 21c, and 21d are integrally fitted onto the take-up wheels 21b, 21c, and 21d. One end of each of the first, second, and third belts 22, 23, and 24 has the same winding direction. It is wound in the direction. In addition, 21
Reference numeral e is a speed governor provided on the rotary shaft 21. Furthermore, the casing 20 includes the winding wheels 21b, 21
An electric motor 25 is provided on one side (right side in the present embodiment) of c and 21d.
The front-side protruding end portion of the output shaft 25a that faces the front-rear direction protrudes outward from the casing 20, and the drive sprocket 25b is integrally attached to the protruding portion. The drive sprocket 25b and the driven sprocket 2 are
By connecting 1a to the chain 25c, the driving force of the electric motor 25 is transmitted to the rotary shaft 21. As a result, the forward, reverse rotation of the electric motor 25 causes the first, second,
The third winding wheels 21b, 21c, 21d integrally rotate forward and backward, and the first, second, and third belt bodies 22, 23, 2
4 is set to be unwound and wound from each winding wheel 21b, 21c, 21d.

The first, second and third belts 22, 23,
Reference numeral 24 is a flat belt, and the corresponding first, second, and third winding wheels 21b, 21 are provided.
The first and second belts 22, 23 and 24 are wound around the c and 21d in a laminated manner.
The through hole 20a formed in the lower surface of the casing 20 and the gap 2i formed in the upper surface 2e of the hoistway are inserted to hang inside the hoistway 2 and integrally connected to the upper surface 4e of the elevating body 4. By this, the lifting body 4 is set to be suspended. That is, the lifting body upper surface 4e is formed with four protrusions 4i projecting upward, and a pair of protrusion pieces 4j located in the front-rear direction intermediate portion and facing in the left-right direction are adjacent to each other in the front-rear direction. And a fixed shaft 26 oriented in the front-rear direction is integrally supported by the projecting pieces 4j. Then, after the other ends of the first, second, and third belts 22, 23, and 24 are suspended around the lower side of the fixed shaft 26, the length adjusting tool 22a is provided on the upper surface 4e of the lifting body. , 23a, 2
The first, second, and third belt members 22, 23, 24 are connected to the elevating / lowering member 4 by means of the fixing member 4a. At this time, as shown in FIG. 9, the respective belt bodies 22, 23, 24 are suspended from the right side to the left side with respect to the fixed shaft 26 for the first and third belt bodies 22, 24, and the upper and lower surfaces of the lifting body are suspended. It is fixed to the left side of the fixed shaft 26 of 2f, and the second belt body 23 is set to be suspended from the left side to the right side of the fixed shaft 26 and fixed to the right side of the fixed shaft 26 of the lift body upper surface 4e. There is.

Further, in this state, when the lifting / lowering body 4 is suspended, the first and third belt bodies 22 and 24 are in a tensioned state, and the load of the lifting / lowering body 4 is received. On the other hand, the second belt body 23 is configured so as to be a main rope body, and the first and third belts 2 are
Since the second belt 23 is preliminarily unwound by a predetermined length from 2 and 24 and is given a slack, the second belt 23 does not receive the load of the elevating body 4. It is set to be the accessory rope. When the loosened second belt 23 is wound around the second winding wheel 21c as it is, the first and third belts 20 and 22 in the tensioned state are wound around the first and third windings. Unlike the state in which the second belt 23 is wound around the take-up wheels 21b and 21d, there is a fear that the second belt 23 may be wound up in a thickened state. Therefore, in the present embodiment, at the portion where the other end of the second belt 21 suspends the fixed shaft 26, the second belt 2
A pulling ammunition 27 having a biasing force of a size that pulls (holds) 3 to the temporary tension state is provided. One end of the pulling ammunition 27 is connected to the second belt 23 via the holder 27a, and the other end is fixed to the lift body upper surface 4e. Then, by making the second belt 23 into a temporary tension state by the tension bullet 27,
The second belt 23 is in a temporary tension state and the second wheel 2
It is set so that it does not become thick when wound around 1c, but does not receive the load of the lifting body 4. And then
In this case, when the first and third belts 22 and 24 are cut, the second belt 23 previously connected between the winding device D and the lifting body 4 becomes in a tensioned state. The first and third belts 22 and 24 are set to suspend the lifting body 4, and the second belt 23 is set to function as an auxiliary suspending unit.

Further, the casing 18 of the winding device D is provided with a looseness detection switch 28 for detecting the tension state of the first and third belts 22 and 24, and the winding device according to the input of the looseness detection switch 28. It is set to stop driving of D (electric motor 25). Also, in the figure, 29
Is an upper limit detection switch, and 30 is a detection switch for detecting that the floor surface of the second floor has been reached. Although the winding device D is incorporated in the upper portion of the hoistway 2 in the present embodiment, the winding device D may be provided in an appropriate portion such as a lower portion of the hoistway 2 or a side portion. However, in this case, a guide roller or the like for guiding the belt bodies 22, 23, 24 to above the hoistway 2 is additionally required.

In the embodiment of the present invention constructed as described above, the elevator 4 constituting the domestic elevator 1 moves up and down in the hoistway 2. In this case,
The lifting body 4 includes the first, second, and third winding wheels 21b, 21c, and 21d of the winding device D disposed above the hoistway 2.
First, second and third belts 22 and 2 respectively wound around
The belts 22, 23, 24 are connected to each other by fixing the belts 3, 24 to the upper surface 4e of the lifting body. Then, of these belts 22, 23, 24, the second belt 23 is preliminarily provided with slack, and in the normal time, the first,
The third belts 22 and 23 suspend the elevating body 4, and the second belt 23 does not apply a load to the elevating body 4. However, as described above, the first and third belts 22 and 24 are In an emergency such as cutting, the second belt body 23 becomes in a tensioned state and the lifting body 4 is suspended, whereby the falling of the lifting body 4 is prevented. Thus, in the embodiment of the present invention, the first and third belts 22 and 24 necessary for suspending the lifting body 4 are provided.
Together with the second belt 23, the lifting body 4 and the winding device D are previously attached.
The second belt 23 can be used as an emergency suspending body with a simple structure in which the second belt 23 is connected between the first belt 23 and the second belt 23 and is loosened (set in a non-tensioned state). As a result, it is not necessary to separately provide a special device such as a speed detecting device unlike the conventional one, the number of parts is reduced, the structure can be simplified and the size can be reduced, and the cost is also reduced. It can be made inexpensive and can be easily spread as a household elevator.

Further, in this configuration, each of the first, second and third belts 22, 23 and 24 is a flat belt, and the first, second and third wheels 21b, 21c,
21d can be wound in a laminated manner. For this reason, unlike the structure in which the lifting body is suspended by the wire, there is no problem that the wire winding device becomes large, and the size can be further reduced.

Moreover, in this one, the second belt 2
3 is loosely connected in advance between the winding device D and the elevating / lowering body 4, and the looseness is caused by the pulling ammunition 27.
The second belt 23 is temporarily tensioned by the urging force of the second belt 23 and is absorbed. As a result, the second belt 23 has the first and third winding wheels 21b and 2b around which the first and third belts 22 and 24 are wound.
Second winding wheel 21c on the same rotary shaft 21 as 1d
It is possible to solve the problem that the winding of the second belt 23 becomes thick when it is wound up, and the winding and unwinding operations of the second belt 23 are smoothly performed.

In addition, in this device, the second winding wheel 21c winds the first and third belts 2 and 24 which are in a tension state by suspending the lifting body 4.
A rotating shaft 21 interlocked with an electric motor 25 so as to rotate by the same drive source as the third winding wheels 21b and 21d.
However, since the second belt 23 is pulled by the pulling ammunition 27 as described above, the second winding wheel that rotates in the same manner as the first and third winding wheels 21b and 21d. There is no problem even when wound around 21c. Therefore, it is not necessary to provide a winding device dedicated to the second belt 23, and the members can be used in common.

Further, in this structure, the first, second, third and fourth guide rails 12, 1 provided on the hoistway 2 side are provided.
The first, second, third, and fourth rollers 7, 8, 10, 16 arranged on the four circumferences of the lifting body 4 are vertically moved by 3, 15, 17 in a state of receiving the movement guide. Therefore, the facing distance between the hoistway 2 and the hoisting body 4 in the left-right direction and in the rear can be reduced, and further compactification can be achieved.

[Brief description of drawings]

1A and 1B are an overall front view and a side view of an elevator, respectively.

2 (A) and 2 (B) are respectively an overall front view and a side view of a lifting body.

FIG. 3 is a sectional view taken along line XX of FIG.

FIG. 4 is a sectional view taken along line YY of FIG.

FIG. 5 is a partial cross-sectional view of the rear portion of the elevator.

FIG. 6 is a partial cross-sectional view of the front part of the elevator.

FIG. 7 is a partial cross-sectional view of the front portion of the elevator for explaining opening / closing of the inner door and the outer door.

FIG. 8 is a side view illustrating an engaging unit.

9 (A) and 9 (B) are a plan view of the lifting body and a cross-sectional view taken along line XX of FIG. 9 (A).

FIG. 10 is a side view of an upper portion of a domestic elevator.

FIG. 11 is a front view of the upper part in a state where the lifting body is located at the upper part of the hoistway.

FIG. 12 is a front view showing a state where the lifting body is descending the hoistway.

[Explanation of symbols]

1 elevator 2 hoistway 3F First floor outer door 3S 2nd floor outer door 4 Lifting body 5 inner door 6 Rear roller mounting bracket 7 First roller 8 second roller 10 Third roller 11 Rear rail bracket 12 First guide rail 13 Second guide rail 14 Front rail bracket 15 Third guide rail 16 Fourth roller 17 Fourth guide rail 19 pin 20 casing 21 rotation axis 21b First winding wheel 22 First Belt 25 electric motor 26 fixed axis 27 Draw ammunition D winding device

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tsuyoshi Okawa             2-1, 1-1 Nishishinjuku, Shinjuku-ku, Tokyo Sanwa             Inside Shatter Industry Co., Ltd. F term (reference) 3F301 AA09 BA15 BB19 BC02                 3F304 AA03 DA35                 3F305 AA08 AA15 BB02 BB19 BC16

Claims (6)

[Claims] 1. A box-shaped hoistway that connects a lower floor and an upper floor in a house to connect the lower floor and the upper floor, and a hoist that vertically moves the hoistway through a guide rail. In a domestic elevator configured with a body, the elevating body is always in a non-tensioned state with a main rope body that is unwound in a tension state from a winding device arranged in a hoistway to suspend the elevating body. , A household elevator that is connected to a sub rope body that holds the lifting body in tension when the main rope body is cut. 2. The household elevator according to claim 1, wherein the main and auxiliary ropes are belt bodies wound around the winding device in a laminated manner. 3. The household elevator according to claim 1, wherein the lifting body is connected to two main ropes and one sub rope. 4. The domestic elevator according to claim 1, 2 or 3, wherein the auxiliary rope is stretched by an ammo to be in a temporary tension state. 5. The household elevator according to claim 4, wherein the ammunition is provided on the lifting body. 6. The winding wheel according to claim 2, 3, 4 or 5, wherein the winding device is arranged in an upper part of the hoistway, and the main and auxiliary ropes are provided with the same axial core of the winding device. A domestic elevator that is configured to be wound around.