JP2000159458A - Elevator guide device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator guide device excellent in riding comfort with simple structure at a low cost. SOLUTION: A guide rail 1 is provided on its front end with a front rolling roller 2 and on its side faces with side rolling rollers 3a and 3b that sandwich it. A roller support member 4 has a front rolling roller support portion 4c and side rolling roller support portions 4b for holding the respective front and side rolling roller 2, 3a and 3b rollable, and a second support member 5 is fixed to a horizontal portion of a car frame. The first and second support members 4 and 5 have raised portions 4a and 5a in opposed fashion, between each couple of which an elastic element 6 is interposed to bear in its shearing direction the first roller support member 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide device for an elevator for guiding an elevator such as a car and a counterweight along a guide rail.

[0002]

2. Description of the Related Art A conventional elevator guide device, such as that described in Japanese Patent Application Laid-Open No. 9-40321, has a front rolling roller 2 on the front of a guide rail 1 as shown in FIGS. A roller supporting member 4 is formed by disposing side rolling rollers 3a and 3b so as to sandwich both side surfaces of the guide rail 1, and forming each shaft 23 of each of the rolling rollers 2, 3a and 3b by bending a single plate. Roller support portions 4c, 4
b, and the roller supporting member 4 is disposed substantially horizontally facing the base 5 fixed to the car frame 8,
An elastic body 6 arranged substantially vertically between the roller supporting member 4 and the base 5 facing each other is provided and supported. Also,
The roller support member 4 and the base 5 are fixed by stopper bolts 30 provided at substantially the same distance from the both-side rolling rollers 3a and 3b. Thus, the front rolling roller 2
And the side surface rolling rollers 3a and 3b are brought into contact with the guide rails 1 to guide the car 17 along the guide rails 1. For example, the guide rails 1 are provided with a plurality of guide rails in a vertical direction along a hoistway (not shown). Since the guide rails 1 are connected and installed, a step or a bend may occur at the joint between the guide rails 1. In such a case, the step or the bend at the joint of the guide rails 1 is applied to the front rolling roller 2 or the side roller. Moving roller 3
When a and 3b pass, the vibration is absorbed by the elastic body 6 so that the vibration is not transmitted to the car room 14.

[0003]

However, in the conventional elevator guiding apparatus described above, the roller supporting member 4 is formed by complicated machining and bending from a single plate, so that the roller supporting member 4 and the base An elastic body 6 disposed vertically between the rollers 5 and the roller supporting member 4 and the base 5 must be fixed by a stopper bolt 30 provided at a position substantially equidistant from the both-side rolling rollers 3a and 3b. In addition, the structure was complicated and expensive, and vibrations from the guide rail 1 could not be effectively absorbed.

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator guidance device which has a simple structure and can be constructed at a low cost and has a comfortable ride.

[0005]

In order to achieve the above-mentioned object, the present invention provides a lifting roller which moves up and down along a guide rail, a front roller which rolls in contact with the front of the guide rail, In an elevator guide device provided with a side surface rolling roller that rolls in contact with both side surfaces of a guide rail, a roller support member rotatably supporting the front surface rolling roller and the side surface rolling roller; A second support member attached to the body is provided, a plurality of upright portions facing the second support member and the roller support member are formed, and an elastic body is provided between the upright portions to make the roller support member elastically movable. It is received in the shearing direction of the body and is supported by the second support member.

As described above, the elevator guiding apparatus according to the present invention comprises a roller support member rotatably supporting a front roller and a side roller, and a second support member mounted on a horizontal portion of a car frame. In addition, an opposing upright portion is formed, an elastic body is arranged between the opposing upright portions, and the roller supporting member is received in the shearing direction of the elastic body. A simple structure can be obtained without machining, and the number of parts can be reduced and the price can be reduced. In addition, since the roller support member is received in the shearing direction of the elastic body and is supported by the second support member, the roller support member can be floatingly supported on the second support member without using a stopper bolt as in the related art. Therefore, it is possible to provide an elevator guide device with good ride comfort by effectively absorbing vibration from the guide rail.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 5 is a front view of an elevator body to which an elevator guide device according to an embodiment of the present invention is attached. A car 17 guided ascending and descending by the guide rail 1 is illustrated as an elevating body.
In the lower part of the car room 14, the vibration isolator 13 is arranged and the car frame 8
Within. A main rope 16 is connected to the car frame 8 of the car 17 via a spring 18, and a counterweight (not shown) is connected to the other end of the main rope 16 via a hoist (not shown). The car 17 can be driven to move up and down along the guide rail 1. In order to smoothly raise and lower the car 17 at this time, the car frame 8
A guide device 15 that rolls while engaging with the guide rail 1 is attached to two upper portions and two lower portions.

Next, the guide device 15 will be described with reference to FIG. 1 which is an enlarged plan view and FIG. 2 which is an enlarged front view.

A front rolling roller 2 is disposed on the front side of the guide rail 1, and a pair of side rolling rollers 3a and 3b are disposed on the side surfaces so as to sandwich both side surfaces of the guide rail 1. A roller supporting member 4 that supports the front rolling roller 2 and the side rolling rollers 3a and 3b so as to be able to roll on substantially the same horizontal plane is provided by a horizontal portion 8 of the car frame 8.
and a pair of side-rolling roller support portions 4b rising substantially perpendicularly to the vertical direction a, and standing substantially perpendicular to the horizontal portion 8a of the car frame 8 so as to be orthogonal to the side-rolling roller support portions 4b. And a raised front rolling roller support 4c. A cutout portion 4e wider than the width of the front rolling roller 2 is formed in the facing portion of the pair of side surface rolling roller support portions 4b. The shafts 23 of the front rolling roller 2 and the side rolling rollers 3a and 3b are respectively fixed to the side rolling roller supporting portion 4b and the front rolling roller supporting portion 4c.
And is rotatably supported. In addition, the roller support member 4
Is an upright portion 4 that is raised almost in parallel with the front rolling roller support portion 4c on the side opposite to the pair of side surface rolling roller support portions 4b.
a, and a position corresponding to a vertex of an isosceles triangle having a bottom line of a line connecting the upright portions 4a, that is, a pair of upright portions 4a.
An upright portion 4d which rises almost in parallel with the side surface roller support portion 4b is provided at a position substantially equidistant from a. The opposite side rolling roller supporting portion 4b has its opposite side in contact with the upright portion 4a and is fixed, and the front rolling roller supporting portion 4c has one side in contact with the side surface rolling roller supporting portion 4b and is fixed. ing.

A second support member 5 is disposed between the roller support member 4 and the plane portion 8a of the car frame 8, and the second support member 5 rolls forward to a position facing the guide rail 1. A predetermined distance is provided between the detachment preventing portion 7 cut out so as to be slightly retreated from the contact surface of the roller 2 and the side rolling rollers 3a and 3b with the guide rail 1, and the upright portions 4a and 4d of the roller support member 4, respectively. It has upright portions 5a and 5b facing each other at a distance. An elastic body 6 is interposed between the upright portion 5a of the second support member 5 and the upright portion 4a of the roller support member 4 which are opposed to each other, and the front rolling roller 2 and the side rolling rollers 3a, 3b are provided. Guide rail 1
When the second supporting member 5 is fixed to the car frame 8 by the fixing bolt 26 in a state where the second supporting member 5 is in contact with the predetermined position, the roller supporting member 4, the front rolling roller 2, and the side rolling rollers 3a, 3b
Is supported by the elastic body 6 so as to float and swing.

The elastic member 6 is provided on the side surface rolling roller 3 opposed to both side surfaces of the guide rail 1 in the plan view of FIG.
a, 3b to the center axis 2a of the front rolling roller 2 so as to have its center in a range from the center line 3c.
A vertical center line 6c of the elastic body 6 is arranged so as to match a center line 3d connecting the rotation center axes a and 3b. The elastic body 6 is disposed outside the side rolling rollers 3a and 3b. The elastic body 6 supports the guide rail 1 in a frontal direction in a shearing direction 6a, and a side direction load in a compressing direction 6b. Will be supported by. This elastic body 6 is shown in FIG.
As shown in (1), flanges are provided at both ends in the axial direction, and these flanges are fixed to the upright portions 4a and 5a by a plurality of mounting bolts 21, respectively.

At least one of the mounting bolts 21
In this case, as shown in FIG. 2, one portion of the portion for fixing the elastic body 6 to the upright portion 5a is replaced with a stopper bolt 19 and a lock nut 20, and the end of the stopper bolt 19 and the upright portion of the roller support member 4 are formed. A predetermined gap dimension d is secured between the portions 4a, and the displacement of the elastic body 6 in the compression direction 6b is regulated. Further, the side surface rolling rollers 3a and 3b are on a diagonal line 4f connecting the vertices of two sides 4g where the side surface rolling roller support portion 4b is in contact with another member, or on the diagonal line 4f and the two sides 4f.
The rotation center axis is arranged in a region 4h surrounded by g. That is, the side surface rolling roller supporting portion 4b is located on the vertex side opposite to the diagonal line 4f with respect to the diagonal line 4f connecting the vertices of the two sides 4g in contact with other members.
The front rolling roller 2 and the front rolling roller support 4c are also arranged in a similar relationship.

FIG. 3 is an enlarged side view showing an essential part of the guide device 15. Next, referring to FIG. 3, the upright portion 4d of the roller support member 4 and the upright portion 5b of the second support member 5 will be described. The support will be described. At the end of the roller support member 4 on the side opposite to the guide rail 1, an upright portion 4d bent perpendicularly to the horizontal portion 8a of the car frame 8 is provided, and the upright portion 5b of the second support member 5 is opposed to the upright portion 5b. Have been. A second elastic body 25 having a higher spring constant than the elastic body 6 is fixed to the upright portion 5b of the second support member 5 with a lock nut 20, and the second elastic body 25 and the roller support member 4 stand upright. Part 4
A predetermined gap dimension “b” is formed between “d” and “d”. Further, on the upper portion of the second elastic body 25, the upright portion 4d of the roller support member 4 is provided.
Can be pulled into the upright portion 5b side by the pull-in bolt 22 and the lock nut 20, and can be pulled into the upright portion 5b side by a gap dimension b until the upright portion 4d collides with the second elastic body 25. I support it.

When the assembly as the guide device 15 is completed, the upright portion 4d of the roller support member 4 is pulled in by the draw-in bolt 22 so as to be in contact with the second elastic body 25, and the elastic body 6 is shown in FIG. The lock nut 20 is fixed in a state where a predetermined displacement amount a is given. Therefore, no unwanted vibration is applied during transportation. However, when the guide device 15 is installed on the elevator at the site, the front rolling roller 2 is brought into contact with the front of the guide rail 1 and the side ruled rolling rollers 3a and 3b are brought into contact with both side surfaces of the guide rail 1. The second support member 5 and the car frame 8 are fixed with fixing bolts 26. At this time, the lock nut 20 to which the draw-in bolt 22 is fixed is loosened as shown in the side view of FIG. The retracted state is released, and a predetermined gap dimension c is provided between the upright portion 5b of the second support member 5 and the lock nut 20, and the lock nut 20 is fixed. Accordingly, the roller support member 4 can be allowed to vibrate within the range of the gap dimension b shown in FIG. 3 or the gap dimension c shown in FIG.

Next, the operation of the guide device 15 will be described. Normally, when a hoist (not shown) operates, the car 17 moves up and down as a frictional force is generated between the hoist and the main rope 16. At this time, since the guide devices 15 are attached to the upper and lower portions of the car 17 at the four positions, the front rolling roller 2 is provided at the front of the guide rail 1, and the side rolling rollers 3a and 3b are provided at the opposing sides. Guides the car 17 along the guide rail 1 while rolling. Furthermore, vibration occurs when each of the rolling rollers 2, 3 a, 3 b passes through the connecting portion existing in the axial direction of the guide rail 1, but is effectively absorbed by the elastic body 6.

That is, when a displacement occurs on the front side of the guide rail 1 at the connecting portion of the guide rail 1 and cannot be absorbed only by the displacement of the front rolling roller 2, the front rolling of the guide rail 1 Since the moving roller 2 is provided, and the elastic body 6 is arranged between the roller supporting member 4 and the second supporting member 5 and both are swingably and floatingly connected, the roller The upright portion 4d of the support member 4 moves in the shearing direction 6a approaching the upright portion 5b of the second support member 5, and the vibration is absorbed. In addition, the movement at this time is performed along the drawing bolt 22 as shown in FIG. 3, and the second elastic body 25 having a higher spring constant than the elastic constant of the elastic body 6 and the upright portion 4 of the roller support member 4.
d, and is received by the second elastic body 25 in a range regulated by a predetermined gap dimension b formed between the second elastic body 25 and the upright portion 4d. Therefore, the amount of displacement from the vehicle 17 can be reduced, and the car 17 can absorb vibrations in a range where the front side of the guide rail 1 does not collide with the second support member 5 or the roller support member 4.

If displacement or bending occurs on the side surface of the guide rail 1 at the connecting portion of the guide rail 1 and cannot be absorbed only by the displacement of the front roller 2, the side surface of the guide rail 1 is Side rolling roller 3 arranged
Since the a and 3b are rotatably mounted on the roller support member 4 which is swingably supported on the second support member 5 via the elastic body 6, it is absorbed by the deformation of the elastic body 6 and the Vibration can be suppressed. Moreover, the stopper bolt 1
9 and the upright portion 4a of the roller supporting member 4, a predetermined gap dimension d is formed to regulate the displacement of the elastic body 6 in the compression direction 6b. Therefore, even when an abnormal uneven load is applied, The stopper 7 prevents a collision between the side surface of the guide rail 1 and the second support member 5 and absorbs vibration to the car 17.

The roller supporting member 4 supports the side rolling rollers 3a and 3b by a side rolling roller supporting portion 4b having a cutout 4e wider than the width of the front rolling roller 2 at the center thereof. The front rolling roller 2 is supported by a front rolling roller support portion 4c arranged at a right angle to the side rolling roller support portion 4b, while the second support member 5 attached to the car frame 8 includes a rising portion 4a. Standing part 5 bent so as to face
a, and the elastic body 6 is arranged between the pair of the upright portions 4a and the upright portions 5a so that a simple structure can be obtained without using a machined component as in the prior art. The guide device 15 having a small number of points and a lower price can be provided.

The elastic body 6 has a center line 3c connecting the side surface rolling rollers 3a and 3b arranged on both side surfaces of the guide rail 1.
From the center of the front rolling roller 2 to the rotation center axis 2a of the front rolling roller 2, and further, the side rolling rollers 3a, 3b
Since the rotation center axis 3d and the center line 6c of the elastic body 6 are arranged on substantially the same horizontal plane, even when an eccentric load is applied to the guide device 15, the elastic body 6 which receives the eccentric load may be affected by the overturning moment. It is hard to receive and a good ride is obtained. Further, in an ordinary elevator, the load received on both sides is larger than that on the front of the guide rail 1, but the elastic body 6 is disposed outside the side rolling rollers 3a and 3b, and Since the smaller load in the direction is supported in the shear direction 6a and the larger load in the side direction is supported by the spring constant 6b in the compression direction, the method is suitable for the elastic body 6 and the displacement of the elastic body 6 is compared. It is possible to reduce the number.

Further, the side surface rolling rollers 3a and 3b are surrounded by a diagonal line 4f connecting the vertexes of two sides 4g where the side surface rolling roller supporting portion 4b is in contact with another member, or surrounded by the diagonal line 4f and two sides 4g. Since the rotation center axis is disposed in the divided region 4h, even when, for example, an eccentric load indicated by an arrow 27 in FIG. 2 is applied, a predetermined strength can be secured with a minimum amount of material. With a simple structure, a low-cost guide device can be obtained. Since the front roller 2 has the same configuration, the same effect can be obtained.

In the above embodiment, the car 17
Although the guide device 15 attached to the guide rail 1 has been described, the counterweight can be similarly configured, and can be used as a guide device for a lifting body that moves up and down along the guide rail 1.

[0022]

As described above, the elevator guiding apparatus according to the present invention comprises a roller support member rotatably supporting a front roller and a side roller, and a second support member mounted on a lift. In order to form an opposing upright portion, an elastic body is arranged between the opposing upright portions, and to receive the roller supporting member in the shearing direction of the elastic body, a machined component is used as in the related art. Without
The structure can be simple, and the number of parts can be reduced and the price can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view showing an elevator guide device according to an embodiment of the present invention.

FIG. 2 is a front view of the elevator guide device shown in FIG.

FIG. 3 is a side view showing a main part of the elevator guide device shown in FIG. 1;

FIG. 4 is a side view showing another state of the main part of the elevator guide device shown in FIG. 3;

5 is a front view of the elevating body to which the elevator guide device shown in FIG. 1 is attached.

FIG. 6 is a plan view of a conventional elevator guide device.

FIG. 7 is a side view of the elevator guiding device shown in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide rail 2 Front rolling roller 3a, 3b Side rolling roller 4 Roller supporting member 4a, 4d Standing part 4b Side rolling roller supporting part 4c Front rolling roller supporting part 5 Second supporting member 5a, 5b Standing part 6 Elasticity body

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takeki Ando 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo, Japan Inside the Hitachi Building System Co., Ltd. (72) Inventor Shizuo Nishikawa 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo, Ltd. (72) Inventor Minoru Onodera 1070 Ma, Hitachinaka City, Ibaraki Prefecture Inside Mito Plant, Hitachi, Ltd. (72) Inventor Kaoru Hirano 1070 Ma, Hitachinaka City, Ibaraki Prefecture Mito Plant, Hitachi, Ltd. F term (reference) 3F305 BD31 CA02 CA08 3F306 AA12 CB00 CB06

Claims (8)

[Claims] 1. A front rolling roller that rolls in contact with a front surface of the guide rail, and a side rolling roller that rolls in contact with both side surfaces of the guide rail, on a lifting body that moves up and down along the guide rail. And a roller supporting member rotatably supporting the front rolling roller and the side rolling roller, and a second supporting member attached to the elevating body, the second supporting member And a plurality of upright portions facing the roller support member, respectively, and an elastic body is provided between the upright portions to receive the roller support member in the shearing direction of the elastic body and to support the roller support member on the second support member. A guide device for an elevator. 2. A front rolling roller which rolls in contact with a front surface of the guide rail, and a side rolling roller which rolls in contact with both side surfaces of the guide rail, respectively. And a roller supporting member rotatably supporting the front rolling roller and the side rolling roller, and a second supporting member attached to the elevating body, the second supporting member And a plurality of upright portions respectively facing the roller supporting member, and an elastic body is provided between the upstanding portions to support the roller supporting member in a floating manner on the second supporting member. Guide device. 3. The method according to claim 1, wherein
The second support member has a stopper portion at a position facing the guide rail, and the roller support member has a side surface rolling roller support portion located on substantially the same vertical surface on both side surfaces of the guide rail; A front rolling roller supporting portion located on a vertical plane perpendicular to the vertical surface, and the front rolling roller and the side rolling roller are respectively mounted on the side rolling roller supporting portion and the front rolling roller supporting portion. An elevator guide device rotatably supported, wherein said upright portions are formed outside said both-side rolling rollers. 4. The method according to claim 1, wherein
An elevator guide device, wherein the elastic body is arranged to support a load in a front direction on the guide rail in a shearing direction and to support a load in a side direction in a compressing direction. 5. The device according to claim 3, wherein the elastic body extends in a range from a center line connecting the side rolling rollers disposed on both side surfaces of the guide rail to a rotation center axis of the front rolling roller. An elevator guide device, wherein the guide device is arranged so as to have its center, and is arranged so that its center in the vertical direction is aligned with the rotation center axis of the side-surface rolling roller. 6. The device according to claim 3, wherein the side-rolling roller supporting portion is formed by bending the roller supporting member substantially vertically, and fixing the upright portion to a side opposite to the roller supporting member. The side-surface rolling roller is arranged such that the side-surface rolling roller supporting portion is disposed on a vertex side opposite to the diagonal line rather than on a diagonal line connecting two vertices in contact with the roller supporting member and the upright portion. Elevator guidance device. 7. The device according to claim 6, wherein the front roller supporting portion is fixed substantially vertically to the roller supporting member, and a side portion thereof is fixed to the side roller supporting member. The front rolling roller supporting portion is a vertex opposed to the diagonal line rather than a diagonal line connecting two vertices where the front rolling roller supporting portion is in contact with the roller supporting member and the side surface rolling roller supporting portion. A guide device for an elevator, wherein the guide device is disposed on a side of the elevator. 8. The roller support member and the second support member, which are substantially equidistant from the upright portions arranged opposite to each other, are formed with other upright portions which are respectively opposed to the upright portions. An elevator guide device comprising a second elastic body having a predetermined gap dimension between the other standing portions and a spring constant higher than the spring constant of the elastic body.