JPH0438674B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device that is attached to an elevating body of an elevator and guides the ascent and descent of the elevating body.

[Conventional technology]

A guide shoe is attached to the elevator car and the counterweight, and the guide shoe engages and slides on the guide rail to guide the car and the counterweight.

Figures 4 and 5 are, for example, 50-12856
FIG. 4 is a cross-sectional view of a hoistway, and FIG. 5 is an enlarged sectional view of a main part.

In the figure, 1 is the elevator hoistway, 2 is the hoistway 1
The cars 3A and 3B are arranged along the wall of the hoistway 1 to face each other across the car 2, and are engaged with guide shoes (not shown) attached to the car 2. 2 is a car rail that guides the elevator up and down, 4 is a counterweight placed behind the car 2, and 5 is fixed to the side of the counterweight 4, with a U-shaped groove formed at the tip that protrudes outward. The holding body 6 is a sliding body provided along the inside of the groove of the holding body 5, and the holding body 5 and the sliding body 6 constitute a guide shoe 7. 8A and 8B are longitudinal members that are erected along the wall of the hoistway 1 and have a U-shaped section in cross section, and a sliding body 6 is attached to the U-shaped section.
is a weight rail that engages and slides.

A conventional elevator guide device is constructed as described above, and the car 2 is guided up and down by the engagement and sliding of the guide shoe and the car rails 3A and 3B.
The counterweight is guided up and down by the sliding engagement between the guide shoe 7 and the weight rails 8A, 8B.

[Problem that the invention seeks to solve]

In the conventional elevator guide device as described above, the sliding surface of the guide shoe 7 consists of a curved surface part and flat parts on both sides, but the contact surface of the curved part has a small area and has a lower surface pressure than the flat part. becomes high and wear resistance is poor. Weight rails 8A and 8B having a T-shaped cross section are sometimes used, but in this case, the top surface of the rails is flat, but the width is narrow and the area is small, so the surface pressure is still high. The size of the guide shoe 7 may be determined based on the above-mentioned abrasion resistance, and in this case, a long sliding body 6 is required.
Further, when the sliding surface is a curved surface, there is a problem that a step is likely to occur at the joint between the weight rails 8A and 8B, and vibration noise is generated when the guide shoe 7 passes through the joint.

This invention was made to solve the above-mentioned problems, and is an elevator guide that can increase the sliding area, improve the wear resistance of the guide shoe, and achieve the required performance with less material for the guide shoe. The purpose is to provide equipment.

[Means for solving problems]

In the elevator guide device according to the present invention, the guide rail is formed of a longitudinal member having a protrusion in a cross section and a flat part extending laterally from the protrusion,
The guide shoe is composed of a member having a groove that engages with the protrusion of the guide rail and an outer edge that extends outward from the opening edge of the groove and contacts the flat surface of the guide rail.

[Effect]

In this invention, the guide shoe consists of a groove part and an outer edge part, and since these contact the protruding part and the flat part of the guide rail, a wide contact area is ensured, and the surface pressure is reduced.

〔Example〕

Figures 1 to 3 are views showing one embodiment of the present invention, with Figure 1 being an enlarged cross-sectional view of the main parts, Figure 2 being an exploded perspective view of the guide shoe, and Figure 3 being a cross-sectional view of the hoistway. , 1, 2, 3A, and 3B are similar to the conventional device described above.

In the figure, reference numeral 10 denotes a counterweight placed on the side of the car 2, which is made up of a frame 11 and a number of weight bodies 12 stacked on top of each other. Guide shoes 13 are attached to the upper and lower ends of the counterweight 10, and are composed of a mounting plate 14, a holding body 15, and a sliding body 16. The mounting plate 14 is fixed to the upper and lower end surfaces of the frame body 11, and has a cutout portion surrounded by an edge 14a at one end thereof, and these cutouts are arranged to face each other. Holder 15
is formed of a member having a groove portion 15a having a U-shaped cross section and an outer edge portion 15b with one of its opening edges extending outward, and an elongated through hole 15c is provided in the center of both side walls of the groove portion 15a. Edge 14 of mounting plate 14
a is inserted, and the groove portion 15a is welded to the mounting plate 14. Further, a through hole 1 is provided in one side wall of the groove portion 15a.
A long hole 15d is provided along the length of 5c, and a round hole 15e is provided in the other side wall. The sliding body 16 includes a groove 16a that is accommodated in the groove 15a of the holding body 15, and an outer edge 16b that has one of its opening edges extending outward.
A groove 16c that engages with the edge 14a of the mounting plate 14 is formed on the outer surface of both side walls of the groove 16a.
is formed, and a long hole 15d of the holding body 15 is formed in one side wall.
A protrusion 16d that engages with is provided. In addition,
The other side wall is similarly provided with a protrusion (not shown) that engages with the round hole 15e, and the groove 16c and the edge 1
4a, the groove 16a of the sliding body 16 is housed and held in the groove 15a of the holder 15 by engagement between the projection 16d and the elongated hole 15d, and between the aforementioned projection and the round hole 15e (not shown). Reference numeral 17 denotes a weight rail consisting of a longitudinal member having a π-shaped cross section, which is erected along the wall of the hoistway 1, and a protrusion 17a corresponding to the shoulder of the π-shape is inserted into and engaged with the groove 16a of the sliding body 16. This protrusion 17
The surface of the flat portion 17b extending laterally from the root portion of a is in contact with the surface of the outer edge portion 16b of the sliding body 16. 18 is a common fixture that connects the back of the car rail 3A and the back of the weight rail 17 with a rail gripper 19; 20 is a car side support that is fixed to the wall of the hoistway 1 and welded to the common fixture 18; Similarly, 21 is a weight side support, 22 is a fixture coupled to the back surface of the car rail 3B, and 23 is a support fixed to the wall of the hoistway 1 and welded to the fixture 22.

In the elevator guide device configured as described above, the groove portion 16a of the sliding body 16 of the guide shoe 13 attached to the counterweight 10 and the protruding portion 17a of the weight rail 17 are in engagement contact with each other, and the sliding body 16 and the flat surface 17b of the weight rail 17, the counterweight 10 is smoothly guided up and down. In addition,
A slight gap is provided between the top of the protrusion 17a and the bottom of the groove 16a to avoid the influence of the difference in level between the joints of the weight rails 17.

In this way, the sliding body 16 and the weight rail 17 have a wide contact area in both the front, back, left and right directions of the counterweight 10, so the surface pressure on each contact surface is reduced and wear resistance is improved. In addition, sliding body 1
Since the width of the contact area of the sliding member 6 is increased, the length can be shortened accordingly, and even if the volume of the sliding member 16 is reduced, the required performance can be obtained.

Although the above embodiment has been described with respect to the counterweight 10, it is obvious that the present invention can also be applied to the car 2, which is another elevating body.

[Effects of the Invention] As explained above, in the present invention, the guide rail of an elevator is formed of a longitudinal member having a protrusion in the cross section and a flat part extending laterally from the root of the protrusion, and the guide rail is Since the sliding body has a groove that engages with the protrusion of the guide rail and an outer edge that extends outward from the opening edge of the groove and contacts the flat surface of the guide rail, the front and rear of the elevating body A wide contact area can be ensured in the left-right direction, the wear resistance of the sliding body can be improved, and the required performance can be obtained with a small amount of material.

[Brief explanation of drawings]

Fig. 1 is a diagram showing an embodiment of an elevator guide device according to the present invention, Fig. 3 is an enlarged sectional view of main parts, Fig. 2 is an exploded perspective view of the guide shoe shown in Fig. 1, and Fig. 3 is a hoistway. 4 is a cross-sectional view of a hoistway showing a conventional elevator guide device; FIG.
The figure is an enlarged cross-sectional view of a portion of FIG. 4. In the diagram, 1 is the hoistway, 2 is the elevator (car), and 10
is the lifting body (balance weight), 13 is the guide shoe,
16 is a sliding body, 16a is a groove, 16b is an outer edge,
17 is a weight rail, 17a is a protrusion, 17b
is the flat part. Note that the same reference numerals in the figures indicate the same parts.

Claims (1)

[Claims] 1. A guide rail that is erected along the hoistway wall and is made of a longitudinal member that has a protrusion in its cross section and a flat part that extends laterally from the root of this protrusion, and a guide rail that is attached to the elevator and that is U that engages with the protrusion
An elevator comprising a guide shoe having a sliding body formed of a letter-shaped groove and an outer edge extending from the opening edge of the groove along the flat surface of the guide rail and in contact with the flat surface. guidance device.