JPH11255451A - Guide roller for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a cost by manufacturing a guide roller, mounted on an elevator, at a low cost. SOLUTION: This guide roller 1 comprises a body part 2 provided with a flange part 22 and machined by a press machine; a guide part 3 having a recessed groove 32 formed in an outer peripheral surface and formed by a urethane resin mold; and a side plate 5 formed by press processing. A bearing 4 is pressed in the inner peripheral surface of a body part 2 and a shaft 6 is inserted in the inner ring of the bearing 4. After the guide part 3 is fitted in the outer peripheral surface of the body part 2, the bearing is pressed in the inner peripheral surface of the body part 2, and the shaft 6 is inserted, a side plate 5 is assembled by a flat counter sunk head screw 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator device, and more particularly to a guide roller used for a rail guide and a rope guide of an elevator.

[0002]

2. Description of the Related Art Elevators are usually constructed so that a rope is suspended from an elevator car body, and the elevator car is lifted and lowered by towing the rope with an electric motor or hydraulic pressure. When the elevator car moves in the vertical direction, the elevator car is relatively slowly moved while being guided by the rails so as to prevent lateral swing. A guide roller is used for the rail guide of the opening / closing door, the rail guide of the elevator car, or the steadying of the rope.

As shown in FIG. 8, a conventional guide roller 71 is formed in an annular shape, has a stopper portion 72a having a smaller diameter than the inner peripheral surface on one side surface, and has a concave portion 72b on the outer peripheral surface over the entire circumference. , A rail guide portion 73 formed of urethane rubber and fitted in a concave portion 72b of the roller body portion 72, and a side plate inserted into a groove portion 72c formed on one side of the roller body portion 72 75
And a bearing 7 on the inner peripheral surface of the roller body 72.
After press-fitting 4, the side plate 75 was caulked with a press machine.

[0004]

However, in the conventional guide roller 71, the roller main body 72 is manufactured by cutting to form the inner peripheral surface, the stopper portion 72a, and the concave portion 72b on the outer peripheral surface. After the rail guide portion 73 formed by the above is fitted in the concave portion 72b of the roller body portion 72, an arc-shaped concave portion 73a having substantially the same shape as the arc surface of the rail or rope engaged with the rail guide portion 73 is cut. Therefore, cutting (especially, rubber cutting) takes time and the cost is high.
This guide roller is a consumable item and is manufactured in large numbers.
In particular, cost reduction has been demanded.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a guide roller whose cost is reduced by improving the shape to be easily mass-produced.

[0006]

SUMMARY OF THE INVENTION A guide roller according to the present invention is configured as follows to solve the above-mentioned problems. That is, a guide roller in an elevating device mounted to guide the movement of a reciprocating member disposed in the elevating device, a roller body portion formed by cold forging, and an elastic guide portion. A side plate disposed on a side surface of the roller body, wherein the roller body is formed in an annular shape and has a flange portion on one side, and the guide portion has an inner periphery. A surface is fitted on the outer peripheral surface of the roller main body, a concave portion is formed on the entire outer peripheral surface, the side plate is formed in an annular shape, and the inner peripheral surface has a smaller diameter than the inner diameter of the roller main body. The side plate is formed so as to be detachably attached to the roller main body.

The guide roller is a guide roller in an elevating device mounted to guide the movement of a reciprocating member disposed in the elevating device, and includes a roller body formed by cold forging. An elastic guide portion and a side plate disposed on a side surface of the roller body portion, and the roller body portion is formed in a ring shape and formed with a flange portion on one side, The guide portion has an inner peripheral surface fitted on the outer peripheral surface of the roller body, a concave portion is formed on the entire outer peripheral surface, the side plate is formed in an annular shape, and the inner peripheral surface is the roller. It is formed to have a smaller diameter than the inner diameter of the main body, and is formed so that the side plate is integrated with the roller main body by caulking.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

A guide roller 1 shown in FIGS. 1 and 2 includes a main body 2, a guide portion 3 fitted on the outer peripheral surface of the main body 2, and a bearing 4 as a bearing pressed into the inner peripheral surface of the main body 2.
And a presser 5 supporting the guide 3 and the bearing 4
The shaft 6 is press-fitted into the bearing 4.

The main body 2 has a cylindrical shaft portion 21 and a flange portion 22 arranged on one end side of the shaft portion 21, and a small groove portion 23 arranged on the flange portion 22 side near the inner peripheral surface over the entire circumference. And a plurality of projections 24 arranged inward from the flange 22 are formed integrally by cold forging using a press machine. At this time, the small groove 23
Then, by pressing with a punch 8 as shown in FIG. 3, a bent portion 25 directed toward the center is formed at the inner edge portion of the flange portion side of the main body portion 21, and the bent portion 25 holds the outer ring of the bearing 4. Will be. A plurality of (six in this embodiment) female screws 27 with which the countersunk screws 7 are screwed are formed on the opposite side of the flange of the press-molded main body 2.

The guide portion 3 has an inner peripheral surface formed by the shaft portion 2 of the main body 2.
1, small holes 31, 31 which are formed in a hollow shape so as to be fitted to the outer peripheral surface thereof and which are engaged with a protrusion 24 of the flange portion 22 and a protrusion formed on the side plate 5 described later. Alternatively, it is integrally formed by urethane resin molding with a concave groove 32 with which the rope engages. The width of the guide portion 3 is formed slightly larger than the shaft portion 21 of the main body portion 2 and is pressed by the side plate 5 when the side plate 5 is attached.

The side plate 5 formed in an annular shape has an outer peripheral portion and an inner peripheral portion formed in a stepped shape, and a plurality of projections 51 are formed on the outer peripheral portion toward the inside. Tapered holes 52 are formed in the inner peripheral portion at equal intervals in the circumferential direction, and the head of the countersunk screw 7 with a hexagonal hole is inserted, and the inner peripheral surface is formed smaller than the inner diameter of the shaft portion 21 of the main body 2. , The outer ring of the bearing 4 is held. A shaft 6 having a flange 6a at its tip is press-fitted into the inner diameter of the bearing 4 and attached to an elevator car body or a roller bracket. Brim 6
a holds the inner race of the bearing 4.

Guide roller 1 constructed as described above
Is formed by press-fitting the guide portion 3 into the outer peripheral surface of the main body portion 2 and press-fitting the bearing 4 into the inner peripheral surface, and fixing the rear side plate 5 into which the shaft 6 has been press-fitted with the flathead screw 7. Since the main body 2 is pressed and the guide 3 is formed by urethane resin processing, it is manufactured at a low cost. When the guide 3 is inserted into the main body 2, the main body 2 is inserted from the side opposite to the flange of the main body 2. Since the side plate is attached by fitting to the outer peripheral surface side of the portion, it can be assembled very easily. In addition, when the guide part is worn out, the side plate may be removed and the guide part may be replaced, so that parts replacement can be performed at low cost. As a result of the improvement as described above, the guide roller 1
The cost can be reduced by about 50% as compared with the conventional guide roller 71.

This guide roller is used, for example, in a rail guide of an opening / closing door as shown in FIG. A roller bracket 12 is disposed above the opening / closing door 11, a shaft 6 attached to the guide roller 1 is fixed to the roller bracket 12, and a guide portion 3 of the guide roller 1 is attached to a wall 14 on which the elevator car 13 moves up and down. The guide roller 1 is rotated by engaging the concave groove 32 with the rail 15, and the door 11 is moved and guided.

This guide roller can be used not only as a rail guide for an opening / closing door, but also as an elevating guide for an elevator car, and can also be used as a steady rest guide for a main rope that pulls the elevator car.

The guide roller 61 shown in FIG. 5 shows another embodiment, and has a main body 62, a guide 63, a bearing 64, and a side plate 65. The guide portion 63 and the bearing 64 are formed similarly to the guide portion 3 and the bearing 4 of the guide roller 1 shown in FIG.
5 are formed so as to be caulked with each other. As shown in FIG. 6, a plurality of (six in the drawing) substantially rectangular projections 62a are formed on the end face of the main body 62 on the side opposite to the flange so as to be caulked. As shown in FIG. 7, the outer diameter and the inner diameter are the same as those of the side plate 5 shown in FIG. 1, and a plurality of substantially rectangular holes 65 a to be fitted into the protrusions 62 a of the main body 62 are formed. (6 in the illustration)
Is formed.

The side plate 65 has a guide portion 63 fitted on the outer peripheral surface of the main body 62 and a bearing 64 on the inner peripheral surface of the main body.
After press-fitting, the hole 65a of the side plate 65 is inserted into the projection 62a of the main body 62, and the projection 62 is integrally formed by caulking with a press machine. The processing of each part can be manufactured at a low cost similarly to the above-described embodiment, and it is possible to provide a guide roller with reduced cost.

In any case, the main body and the side plate can be processed separately, and the main body is formed by cold and cold forging, and the guide can be formed by resin molding so that there is no post-processing after assembly. If it can be formed as described above, the respective shapes are not limited to the above, and can be appropriately changed. The bearing is not limited to the bearing, but may be a bush type.

[0019]

According to the present invention, the guide roller in the lifting device is mounted so as to guide the movement of the reciprocating member disposed in the lifting device, and is formed by cold forging. A roller body, an elastic guide portion, and a side plate arranged on a side surface of the roller body, the roller body having an annular shape and a flange on one side. The guide portion has an inner peripheral surface fitted on the outer peripheral surface of the roller body portion, a concave portion is formed on the entire outer peripheral surface, the side plate is formed in an annular shape, and the inner peripheral surface is formed. The surface is formed to be smaller in diameter than the inner diameter of the roller main body, and the side plate is detachably attached to the roller main body. Since the main body is mass-produced by press working and the guide is mass-produced by resin molding, a guide roller whose cost is reduced by about 50% as compared with a conventional guide roller can be provided. Further, by detachably attaching the side plate, if only the guide portion is replaced when the guide portion is worn out, parts can be replaced at a low cost.

This guide roller can be manufactured at low cost even if the side plate is formed so as to be caulked to the main body.
Costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a guide roller according to one embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a diagram showing a state in which a bent portion of the guide roller in FIG. 1 is processed by a special punch.

FIG. 4 is a view showing how the guide roller of FIG. 1 is mounted.

FIG. 5 is a guide roller according to another embodiment of the present invention.

FIG. 6 is a view showing a side surface of a main body of the guide roller in FIG. 5;

FIG. 7 is a view showing a side surface of the side plate in FIG. 5;

FIG. 8 is a sectional view showing a conventional guide roller.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Guide roller 2 ... Body part 3 ... Guide part 4 ... Bearing (bearing) 5 ... Side plate 6 ... Shaft 7 ... Countersunk screw 21 ... Shaft part 22 ... Flange part 23 ... Small groove part 25 ... Bending part 27 ... Female screw 32 ... Concave shape Groove 52: Tapered hole

Claims (2)

[Claims] 1. A guide roller in an elevating device mounted to guide the movement of a reciprocating member provided in an elevating device, comprising: a roller main body formed by cold forging; A guide portion, and a side plate disposed on a side surface of the roller body portion, wherein the roller body portion is formed in an annular shape and has a flange portion on one side, and the guide portion is formed. The inner peripheral surface is fitted on the outer peripheral surface of the roller main body, a concave portion is formed on the entire outer peripheral surface, the side plate is formed in an annular shape, and the inner peripheral surface is the inner diameter of the roller main body. A guide roller for a lifting device, wherein the guide plate has a smaller diameter, and the side plate is detachably attached to the roller body. 2. A guide roller in an elevating device mounted so as to guide the movement of a reciprocating member provided in the elevating device, comprising: a roller body molded by cold forging; A guide portion, and a side plate disposed on a side surface of the roller body portion, wherein the roller body portion is formed in an annular shape and has a flange portion on one side, and the guide portion is formed. The inner peripheral surface is fitted on the outer peripheral surface of the roller main body, a concave portion is formed on the entire outer peripheral surface, the side plate is formed in an annular shape, and the inner peripheral surface is the inner diameter of the roller main body. A guide roller for a lifting device, wherein the guide roller is formed to have a smaller diameter, and is formed so that the side plate is integrated with the roller body by caulking.