JP2002037565A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator device capable of being installed in a smaller space. SOLUTION: The elevator device comprises an elevator car 2 and a weight balancer 1 elevatably arranged in an elevator shaft 3 and connected with an elevator rope 4, the elevator rope 4 being hung on a sheave 5 arranged at the upper part of the elevator shaft 3 and the elevator rope 4 being moved with the rotation of the sheave 5 to cause the elevation of the elevator car 2 and the weight balancer 1. A pair of rails 6, 6 formed into a sectionally U- shape are arranged at both ends of the weight balancer 1 with their openings opposed to each other and a vertical roller 7a grounded on a bottom piece 6a of a rail 6 sectionally U-shaped and a lateral roller 7b grounded on both side pieces 6b, 6b thereof are provided on the weight balancer 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator rope hung on a sheave disposed above an elevator passage, having one end connected to an elevator car and the other end connected to a weight balancer. It is an invention related to an elevator device that can be raised and lowered freely.

[0002]

2. Description of the Related Art Conventionally, an elevator rope hung on a sheave disposed above an elevator shaft has one end connected to an elevator car and the other end connected to a weight balancer, so that the elevator car and the weight balancer can be moved up and down. In the elevator apparatus described above, not only the elevator car for loading the people and the conveyed goods, but also the weight balancer is provided with a swing preventing means for preventing the swing so as not to swing during the vertical movement. Things. The swing preventing means provided in the weight balancer 1 is shown in FIG.
As shown in the figure, a pair of rails 6 ', 6' are arranged opposite to both ends of the weight balancer 1, a plurality of rollers 7a ', 7b' are provided on the weight balancer 1, and the rollers 6a ', 7b are mounted on the rail 6'. ', And the weight balancer 1 is moved up and down along the pair of rails 6', 6 '. Here, the pair of rails 6 ′, 6 ′ are each formed in a T-shaped cross section in which a vertical piece 6 b ′ projects from the horizontal piece 6 a ′, and extend the vertical piece 6 b ′ toward the weight balancer 1. Are disposed opposite to both ends of the weight balancer 1. On the other hand, the weight balancer 1 is provided with a vertical roller 7a 'and a pair of horizontal rollers 7b' at both ends adjacent to the pair of rails 6 ', 6'. The vertical roller 7a 'is in contact with the end face of the vertical piece 6b' on the side of the weight balancer 1 and rolls. The pair of horizontal rollers 7b 'is vertically positioned so as to sandwich the vertical piece 6b'. The piece 6b 'comes into contact with both side faces orthogonal to the end face on the weight balancer 1 side and rolls. As described above, the pair of horizontal rollers 7b ', 7b' provided on the weight balancer 1 are rolled while sandwiching the vertical piece 6b 'of the rail 6', whereby the weight balancer 1 is provided with the pair of rails 6 ', 6 Is prevented from swinging in a direction (arrow B) orthogonal to the direction in which the 'opposes. In addition, each vertical roller 7 provided at both ends of the weight balancer 1
a ', 7a' rolls on a pair of rails 6 ', 6' arranged at both ends of each weight balancer 1, so that the weight balancer 1 is in a direction (arrows) facing the pair of rails 6 ', 6'. A) is to prevent swinging.

[0003]

As described above, the weight balancer 1 has a pair of rails 6 ', 6' facing each other (arrow A) and a direction perpendicular to the above direction (arrow B).
Is moved up and down along the pair of rails 6 ', 6' while being prevented from swinging.
In addition, in the elevator apparatus having the weight balancer 1, the space required for arranging the swing preventing means between the rollers 7a 'and 7b' of the weight balancer 1 and the rail 6 'becomes large, and a large installation space is required. It is inevitable that the elevator system will be
A pair of horizontal rollers 7b ', 7b' are placed on both ends orthogonal to the end surface of the vertical piece 6b 'of the rail 6' on the side of the weight balancer 1, so that the pair of rails 6 ', 6' face each other. In this case, the space for arranging the swing preventing means between the weight balancer 1 and the pair of rails 6 ', 6' in the direction (arrow B) perpendicular to the direction in which the swinging is performed becomes large.

[0004] In recent years, there has been a movement to install a home elevator for the elderly, not only in a high-rise house but also in a low-rise house. However, an elevator apparatus requiring a large installation space as described above requires less space. It could not be applied as a home elevator required to be installed in the home.

[0005] The present invention has been made in view of the above points, and has as its object to provide an elevator apparatus that can be installed even in a small space.

[0006]

According to a first aspect of the present invention, there is provided an elevator apparatus comprising: an elevator car 2 and a weight balancer 1 which are arranged in an elevator hoistway 3 so as to be movable up and down; 4, the elevator rope 4 is hung on a sheave 5 arranged above the elevator hoistway 3, and the elevator rope 4 moves by rotating the sheave 5, so that the elevator car 2 and the weight balancer 1 move up and down. In the elevator apparatus, a pair of rails 6, 6 formed in a U-shaped cross section are used.
Are disposed at both ends of the weight balancer 1 with the openings facing each other, and the vertical roller 7a grounded to the bottom piece 6a of the rail 6 having a U-shaped cross section and the horizontal roller 7b grounded to the side pieces 6b, 6b are weight balancer 1 It is characterized by being provided in. Thus, the vertical rollers 7a, 7a provided at both ends of the weight balancer 1 are connected to the bottom pieces 6a, 6a of the pair of rails 6, 6.
The weight balancer 1 is prevented from swinging in the direction (arrow A) facing the pair of rails 6 and 6 by rolling on the ground 6a. 7b is a side piece 6 of the rail 6
By rolling on the grounds b and 6b, the swing is prevented in the direction (arrow B) orthogonal to the direction in which the pair of rails 6 and 6 of the weight balancer 1 face each other. The horizontal roller 7b can be moved up and down while suppressing the swing of
b, 6b, the structure is such that it rolls on the ground, so that compared to an elevator apparatus in which a pair of horizontal rollers 7b ', 7b' which sandwich a vertical piece 6a 'of a rail 6' of the prior art are arranged. The number of horizontal rollers can be reduced to simplify the structure, and the reduced horizontal rollers can also reduce the installation space.In other words, the elevator device can have a simple structure and can be installed in a small space. For example, the present invention can be applied to a home elevator that requires installation in a small space.

Further, according to a second aspect of the present invention, in the elevator apparatus according to the first aspect, the U-shaped rail 6 is provided.
The flanges 8, 8 protruding outward are provided at the ends of the side pieces 6 b, 6 b on the weight balancer 1 side, so that the flanges 8 are located at positions facing the end face 8 a on the opposite side to the weight balancer 1 side. It is characterized in that a drop-off preventing piece 9 is provided on the weight balancer 1. As a result, the flange portions 8, 8 protrude outward from the ends of the side pieces 6b, 6b of the U-shaped rail 6 on the weight balancer 1 side, and are formed in a flange shape with respect to the rail 6. The drop-off preventing piece 9 located at a position facing an end face 8a of the portion 8, 8 on the side opposite to the weight balancer 1 side.
Is provided on the weight balancer 1, so that when the rail 6 and the weight balancer 1 move away from each other, the flanges 8, 8 and the falling-off preventing piece 9 are caught, and the pair of rails 6, 6 and the weight balancer 1 Sliding contact is maintained, and stable operation of the elevator device can be ensured.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in FIGS. 1 to 4 will be described below. FIG. 8 shows an overall view of this elevator apparatus. An elevator car 2 and a weight balancer 1 which are arranged in an elevator hoistway 3 so as to be able to move up and down are connected by an elevator rope 4, and the elevator rope 4 is connected to the elevator rope 4. The elevator ropes 4 move by hanging the sheaves 5 arranged above the hoistway 3 and rotating the sheaves 5, and the elevator car 2 and the weight balancer 1 alternately move up and down.
Hereinafter, this elevator apparatus will be described in detail.

The elevator hoistway 3 is a passage through which the weight balancer 1 and the elevator car 2 move up and down, and is provided through each floor of the building. A driving device 10 including a sheave 5 and a motor 11 is disposed above the elevator shaft 3, and the motor 11 drives the sheave 5 to rotate. An elevator rope 4 having one end connected to the elevator car 2 and the other end connected to the weight balancer 1 is suspended from the sheave 5, and the weight balancer 1 and the elevator car 2 are alternately moved up and down by rotating the sheave 5. Exercise.
Here, in the present example, the elevator rope 4 is composed of three wires.

The elevator car 2 comprises a car body 14 in the shape of a box room on which people and articles are loaded, and a car frame 12 on which the car body 14 is placed. A door 14a is provided on the front of the car body 14, and the car body 14 has an L-shaped car frame 12 as viewed from the front so as to support the side and bottom surfaces.
It is mounted on. In this example, one end of the elevator rope 4 is connected to the car frame 12. And the elevator car 2 is an elevator rope 4 by rotation of a sheave 5.
Is lifted and lowered in the elevator hoistway 3 by the lifting movement and the hanging movement of the elevator car 2. In this case, a pair of car rails 13 and 1 arranged at both ends of the elevator car 2 are used.
The elevator car 2 is moved up and down along 3. More specifically, the pair of car rails 13, 13 are arranged vertically above and below the elevator hoistway 3 along both ends of the side surface of the car frame 12, and when the elevator car 2 moves up and down. Is provided with swing preventing means for suppressing the swing of the elevator car 2. The swing preventing means is configured by interposing a roller 19 between the elevator car 2 and the car rail 13.

As described above, the weight balancer 1 has one end connected to the other end of the elevator rope 4 connected to the elevator car 2, and is connected to the sheave 5 by the elevator rope 4 hung on the sheave 5. The elevator car 2 is located on the side opposite to the elevator car 2 and functions as a weight of the elevator car 2. Like the elevator car 2, the weight balancer 1 also moves up and down the elevator hoistway 3 by lifting and lowering the elevator rope 4 by rotating the sheave 5.

Here, when the weight balancer 1 moves up and down, it is performed along a pair of rails 6 and 6 arranged at both ends of the weight balancer 1. More specifically, the pair of rails 6 and 6 are arranged vertically above and below the elevator hoistway 3 so as to be adjacent to both ends of the weight balancer 1 that moves up and down. The rail 6 is made of channel steel having a U-shaped cross section in which side pieces 6b are protruded from both ends of a bottom piece 6a.
b, 6b, a flange portion 8 is formed in a flange shape outward in a direction opposite to a direction in which the side pieces 6b, 6b face each other.
8 protruding. The rail 6 having a U-shaped cross section has an opening formed between both side pieces 6b, 6b, and the opening is directed toward the weight balancer 1 so that a pair of rails 6, 6 are provided at both ends of the weight balancer 1. They are arranged to face each other.

The rails 6 are mounted in the elevator hoistway 3 by attaching several rail brackets 16 projecting from the wall of the elevator hoistway 3 at arbitrary height positions. . The rail bracket 16 is formed of an angle steel having an L-shaped cross section. A mounting piece 16a is provided at a tip of the rail bracket 16 in a direction orthogonal to the longitudinal direction of the angle steel, and the mounting piece 16a is vertically attached to the mounting piece 16a. A long slot 17 is provided. on the other hand,
The rail 6 is provided with a plurality of mounting holes 15 arranged in the bottom piece 6a. In this arrangement, a pair of mounting holes 15, 15 formed at the same height position are shifted from each other by a predetermined height, and formed in a similar pair. The rail 6 and the rail bracket 16 configured as described above are arranged so that the mounting hole 15 and the long hole 17 are aligned with each other, and are fixed by inserting a bolt 18 into the mounting hole 15 and the long hole 17. However, at this time, since the plurality of mounting holes 15 are formed in the bottom piece 6a of the rail 6 in the above-described arrangement, the rail 6 is shifted up and down with respect to the rail bracket 16 and another hole is formed in the elongated hole 17. With the mounting hole 15 at the height position facing, the bolt 18 is inserted into the long hole 17 and the mounting hole 15 at the other height position.
The height setting of the rail 6 can be easily changed and adjusted only by inserting and fixing the rail.

The weight balancer 1, like the elevator car 2, is provided with a swing preventing means for suppressing the swing of the weight balancer 1 when the weight balancer 1 moves up and down. This swing preventing means is configured by interposing a roller 7 between the weight balancer 1 and the rail 6. More specifically, as shown in FIGS. 2 and 3, two ends, a vertical roller 7a and a horizontal roller 7b, are provided at both ends of the weight balancer 1 where the rail 6 faces the opening. Are projected so as to be inserted into the openings of the rails 6 respectively. The vertical roller 7a is in contact with the bottom piece 6a of the rail 6 and is rolling, and the horizontal roller 7b is in contact with the side pieces 6b and 6b of the rail 6 and is rolling. Thus, the vertical rollers 7 provided at both ends of the weight balancer 1
a, 7a are bottom pieces 6a, 6 of a pair of rails 6, 6, respectively.
When the weight balancer 1 rolls while contacting the ground, the direction in which the weight balancer 1 faces the pair of rails 6 and 6 (arrow A)
The horizontal rollers 7b provided on the weight balancer 1 are provided with both side pieces 6b, 6b of the rail 6.
By rolling on the ground contacting b, the swing is prevented in the direction (arrow B) orthogonal to the direction in which the pair of rails 6 and 6 of the weight balancer 1 face each other. As described above, when the weight balancer 1 moves up and down along the rail 6, the swing prevention means causes the pair of rails 6, 6
Swinging of the weight balancer 1 is prevented in a direction (arrow B) perpendicular to the direction in which the weight balancer 1 faces (arrow A) and the direction in which the pair of rails 6 and 6 face each other.

In order to prevent the weight balancer 1 from swinging in a direction (arrow B) perpendicular to the direction in which the pair of rails 6 and 6 are opposed to each other, the swing preventing means of the weight balancer 1 as described above is used. Since one horizontal roller 7b has a structure in which the rails 6b and 6b roll on the both side end pieces of the rail, the pair of horizontal rollers 7b sandwich the vertical piece 6a 'of the conventional rail 6'. As compared with the elevator apparatus in which '7b' is arranged, the number of horizontal rollers can be reduced to simplify the structure, and the reduced horizontal rollers can reduce the arrangement space. That is, the structure is simple and the saving is possible. The elevator apparatus can be installed in a space, and can be applied, for example, as a home elevator that requires installation in a small space.

In addition, instead of the conventional jack-type elevator device in which the lower portion of the elevator car 2 is supported by a jack and raised and lowered by remodeling of the elevator device, etc.
When installing an elevator device for suspending the elevator car 2 with the elevator rope 4, the weight balancer 1
When an elevator device such as this example is installed, which has a reduced space by reducing the arrangement space of the sliding contact portion (oscillation prevention means) between the roller 7 and the rail 6, the arrangement space of the oscillation prevention means is small. The size of the elevator car 2, the weight balancer 1, etc. can be increased,
It is possible to provide an elevator apparatus having a sufficient load capacity and capacity.

As shown in FIG. 5, both ends 6b, 6b of the rail 6 on the side of the weight balancer 1 are fixed so that the sliding contact between the weight balancer 1 and the rail 6 via the roller 7 is not released. The flanges 8 are projected outward in the form of flanges, and the weight balancer 1
It is also preferable to provide the falling-off preventing piece 9 located at a position facing the end face 8a opposite to the side. In this example, the falling-off preventing piece 9 is made of a pair of projecting pieces 2 so that the rail 6 slidingly contacting the roller 7 is positioned therebetween.
0, 20 are arranged in the direction (arrow A) facing the pair of rails 6, 6, and the bottom piece 2 is connected to connect the ends of the pair of projecting pieces 20, 20 on the weight balancer 1 side.
1 is formed in a U-shaped cross section. The bottom piece 21 is fixed to the end of the weight balancer 1 facing the rail 6, and the falling-off prevention piece 9 is attached to the weight balancer 1. As described above, when the drop-off preventing piece 9 is attached to the weight balancer 1, the rail 6 is located between the pair of projecting pieces 20, 20 projecting from the weight balancer 1.
A flange portion 8 provided at the tip of both side pieces 6b of the rail 6;
Numeral 8 is located close to the weight balancer 1. Then, the locking pieces 22 are respectively positioned as a pair of protruding pieces 20 so as to be located at a position facing the end face 8 a of the collar portion 8 opposite to the weight balancer 1 side.
A pair of projecting pieces 20,
Project in the opposite direction.

As described above, by attaching the above-mentioned falling-off preventing piece 9 to the weight balancer 1, the rail 6
When the weight balancer 1 and the weight balancer 1 move away from each other, the collar portions 8 and 8 and the pair of locking pieces 22 and 22 of the drop-off prevention piece 9 come into engagement with each other, and the pair of rails 6 and 6 and the weight balancer 1 Maintain the sliding state of
The stable operation of the elevator apparatus can be ensured.

Also, as described above, the elevator rope 4
Is suspended between the weight balancer 1 and the elevator car 2 by tilting the sheave 5 obliquely with respect to the arrangement direction of the weight balancer 1 and the elevator car 2 as shown in FIGS. It is also preferable to arrange them. By doing so, the distance between the weight balancer 1 and the elevator car 2 can be reduced, and the space saving of the elevator device can be further promoted.

[0020]

As described above, in the elevator apparatus according to the first aspect of the present invention, the elevator rope and the weight balancer which are arranged in the elevator hoistway so as to be able to move up and down are connected by the elevator rope. Is suspended on a sheave arranged above the elevator hoistway, the elevator rope moves by rotating the sheave, and the elevator car and the weight balancer move up and down. Are disposed at both ends of the weight balancer with the opening facing each other, and the vertical roller and the horizontal roller that ground to the bottom piece of the U-shaped cross section rail are provided on the weight balancer, so that both ends of the weight balancer are provided. The vertical rollers provided on the bottom of the pair of rails are in contact with The balancer is prevented from swinging in the opposite direction of the pair of rails, and the lateral rollers provided on the weight balancer are grounded on both side pieces of the rail and roll, so that the balance of the pair of rails of the weight balancer is reduced. It is prevented from swinging in the direction perpendicular to the opposite direction, and can be moved up and down while suppressing the swing of the weight balancer. Compared to the conventional elevator system in which a pair of horizontal rollers are arranged so as to sandwich the vertical piece of the rail, the number of horizontal rollers is reduced to simplify the structure and to reduce the number of horizontal rollers. The arrangement space can be reduced, that is, the elevator device can be installed in a space-saving manner with a simple structure. In which can be applied as a home elevator installation is required.

According to a second aspect of the present invention, in addition to the effect of the first aspect, in addition to the effects of the first aspect, the flange portion protrudes outwardly at the tip of the side piece of the U-shaped rail on the weight balancer side. Since the falling-off preventing piece is provided on the weight balancer, which is located at a position facing the end face on the side opposite to the weight balancer side of the collar portion,
When the rail and the weight balancer move away from each other, the collar part and the fall-off prevention piece are caught,
The sliding contact between the pair of rails and the weight balancer can be maintained, and stable operation of the elevator device can be ensured.

[Brief description of the drawings]

FIG. 1 is a top view showing an example of an embodiment of the present invention.

FIG. 2 is a front view of the same weight balancer.

FIG. 3 is an enlarged view of a portion C in FIG. 2;

4A and 4B show the rail and the rail bracket, respectively, wherein FIG. 4A is an exploded perspective view of the both, and FIG. 4B is a front view showing a state in which both are fixed.

FIG. 5 is a top view showing another example of the above-described embodiment (a drop-off preventing piece is attached to a weight balancer).

FIG. 6 is a top view showing another example (the sheave is arranged to be inclined with respect to the weight balancer and the elevator car) of the above embodiment.

FIG. 7 is a front view showing the example of FIG. 6;

8A and 8B show the entire elevator apparatus of the above, and FIG. 8A is a front view and FIG. 8B is a side view.

FIG. 9 is a partial top view showing a conventional elevator apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Weight balancer 2 Elevator car 3 Elevator hoistway 4 Elevator rope 5 Sheave 6 Rail 6a Bottom piece 6b Side piece 7 Roller 7a Vertical roller 7b Horizontal roller 8 Collar part 9 Fall prevention piece

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tadaaki Takano 1048 Odakadoma, Kadoma, Osaka Pref. Matsushita Electric Works F-term (reference) 3F305 BD03 BD21 BD32 3F306 AA07 AA11 DA23

Claims (2)

[Claims] 1. An elevator car and a weight balancer, which are arranged in an elevator hoistway so as to be able to move up and down, are connected by an elevator rope, and the elevator rope is hung on a sheave arranged above the elevator hoistway to rotate the sheave. In the elevator device in which the elevator rope moves and the elevator car and the weight balancer move up and down, a pair of rails formed in a U-shaped cross section are arranged at both ends of the weight balancer with the openings facing each other, and the above-described U-shaped cross section is used. An elevator apparatus characterized in that a vertical roller contacting the bottom piece of a rail-shaped rail and a horizontal roller contacting the both side pieces are provided on a weight balancer. 2. A flange portion protruding outward is provided at an end of each of the two sides of the U-shaped rail on the weight balancer side, and a position facing the end face of the flange portion opposite to the weight balancer side. 2. The elevator apparatus according to claim 1, wherein a falling-off prevention piece is provided on the weight balancer.