JPH0348112B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an improvement in a guide shoe with anti-vibration rubber for guiding a sliding body such as an elevator car or a counterweight along a guide rail.

[Prior art] Figs. 14 and 15 show, for example,
FIG. 9 is a side view and a plan view, respectively, showing a conventional sliding guide shoe disclosed in Publication No. 97771. In the figure, 1 is a guide rail installed in the hoistway of the elevator car, 2 is a guide rail 1
A shoe made of polyethylene or hard urethane rubber that slides up and down freely along the shoe support 3, a shoe support 3 for fitting and supporting the shoe 2, and 4 a shoe support 3 that is connected to the outer periphery of the shoe support 3 at a predetermined interval. A shoe frame 5 is arranged between the outer peripheral surface 3a of the shoe support 3 and the inner surface 4a of the shoe frame 4.
It is a vibration-proof rubber that is fixedly connected to the Reference numeral 6 indicates a threaded rod whose one end is fixed in contact with the side surface of the shoe frame 4, 7 is a nut, 8 is a frame for a sliding body such as an elevator car (not shown), and 9 is a U-shape whose lower surface is fixed to the frame 8. The shoe frame 4 is adjustably fixed to the bracket 9 by a threaded rod 6 and nuts 7, 7.

Further, a metal stopper (not shown) is separately provided for backup in case the vibration-proof rubber 5 becomes unattached.

The conventional guide show is configured as above,
Show frame 4 of Show 2 and Show support 3
Displacement in the X direction and Y direction (see FIG. 15) against the vibration isolating support is provided by shear stress, compressive stress, or tensile stress of the vibration isolating rubber 5. In addition, even if there is a deviation in the spacing between the guide rails 1, the nuts 7, 7 of the threaded rod 6 are used to prevent large swings from occurring in a sliding body such as an elevator car, as shown in FIG. 15, for example. As shown in FIG. 2, the vibration isolating rubber 5, which normally has the shape shown by the broken line, is bent into the shape shown by the solid line, and the shoe 2 is moved to the guide rail 1.
I try to adjust the pressure accordingly.

[Problems to be solved by the invention] In the conventional guide show configured as above,
Since the shoe 2 is designed to fit and be supported by the shoe support 3, extremely strict manufacturing precision is required in manufacturing the shoe support 3.

In addition, since the vibration isolating rubber 5 is loaded with compressive force, tensile force, or shear force in all directions, it is required to be large in strength.

Furthermore, since the vibration isolating rubber 5 is fixed to the shoe support 3 and the shoe frame 4 by adhesive, much effort is required to ensure the quality of the vibration isolating rubber 5.

Therefore, for the above-mentioned reasons, the conventional guide shoe has a problem in that it is very expensive to manufacture.

This invention was made in order to solve these problems, and its purpose is to provide a vibration-proof sliding guide shoe that is inexpensive and can provide a comfortable ride on an elevator car. do.

[Means for Solving the Problems] A sliding guide shoe according to the present invention that slides in the vertical direction along a guide rail has a sliding guide shoe that is guided in contact with the guide rail on the outside of approximately the vertical center of the shoe. A convex portion is formed, and the inner surface of a shoe frame that surrounds the outside of the shoe is brought into contact with the convex portion of the shoe, and the upper and lower portions of the shoe are respectively connected to the shoe frame through an upper vibration isolating rubber and a lower vibration isolating rubber. It is engaged and held by the U-frame.

[Function] In this invention, since the shoe with the convex portion in the center is directly fitted into the shoe frame, the shoe support is not required, and excessive displacement of the anti-vibration rubber is prevented, thereby improving the structure of the car. Vibration can be suppressed.

[Example] An example of the present invention will be described below with reference to FIGS. 1 to 5. The same or equivalent parts as in FIGS. 14 and 15 are given the same reference numerals, and their explanations will be omitted. Figure 1 is a side view of the sliding guide shoe, corresponding to Figure 14, Figure 2 is a plan view, Figure 15 is a side view, and Figure 3 is a perspective view to clarify the structure. The figure shows the state in which the guide rail 1 and shoe support 10 have been removed in order to do so. FIG. 4 is a perspective view showing the shoe 2, and FIG. 5 is a perspective view showing the shoe presser 10.

In the figure, reference numeral 2 denotes a shoe that slides up and down while being guided in contact with the guide rail 1, and as shown in FIG. Surrounding protrusion 2
It forms a. Reference numeral 4 designates a shoe frame that surrounds the outside of this shoe 2, has its inner surface abutted against the outer end surface of the convex portion of this shoe 2, and has a reinforcing plate 11 fixed thereto.As shown in FIG. It is fixed to a frame 8 of a sliding body (not shown) such as an elevator car by means such as bolts or welding. The shape of this shoe frame 4 is that the section where it is attached to the assembly frame 8 has an L-shaped cross section as shown in FIG. They are shaped like a letter and are integrally formed.

In addition, holes 4a are formed in the upper and lower portions of the opposing side surfaces of the U-shaped cross-sectional portion, respectively. 5 is in contact with the outer peripheral surface of the shoe 2, as shown in FIG.
and a vibration isolating rubber whose lower end surface or upper end surface is in contact with the end surface of the U-shaped cross section of the shoe frame 4,
They are removably disposed at the upper and lower parts of the shoe 2, respectively. Reference numeral 10 designates a shoe holder having a shape as shown in FIG. They are respectively disposed with vibration isolating rubber 5 held in their lower parts, and are fixed to the shoe frame 4 with bolts 10b through the through holes 10a of the shoe holder 10 and the through holes 4a of the shoe frame 4. Therefore, the upper part of the shoe 2 is engaged and held by the shoe frame 4 via the upper vibration isolating rubber 5, and the lower part of the shoe 2 is engaged with the shoe frame 4 via the lower vibration isolating rubber 5. .

Next, the function of the vibration isolating rubber 5 in the sliding guide shoe constructed as described above will be explained with reference to FIGS. 6A, B, and C and FIGS. 7A and B. Figure 6A is a sectional view taken along the - line in Figure 3, and Figures 6B and C are guide rails 1, respectively.
7A and 7B are explanatory diagrams of the case where abnormal shaking occurs in the shoe 2, respectively. In general, "vibration-proof rubber" refers to rubber interposed between members to block the transmission of vibrations. However, as shown in FIG. 6A, in the vibration isolating rubber 5 of the present invention, although it is sandwiched between the shoe 2 and the shoe frame 4, this show 2
Since the end surface of the convex portion 2a is in direct contact with the side surface of the shoe frame 4, it is not provided for the purpose of completely blocking the transmission of vibrations. The vibration isolating rubber 5 in this invention is provided for the following purpose.

That is, as shown in FIG. 6B, the guide rail 1
Although the joint part of the guide rail 1 is fixed by the joining member 1a, it may be bent in a dogleg shape, or there may be a step at the joint part of the guide rail 1, as shown in Fig. 6C. When the adjustment accuracy of the guide rail 1 is not good, such as when the guide rail 1 is not properly adjusted, the shoe 2 is moved around the convex portion 2a of the shoe 2 as a fulcrum in order to ensure a comfortable ride for passengers inside the car when the car passes through the joint. It is provided for the purpose of making it swingable.

This will be explained with reference to FIGS. 7A and 7B, which mechanistically represent the operation using a skeleton. 7A shows the operation when viewed from the direction A in FIG. 3, and FIG. 7B shows the operation when viewed from the direction B in FIG. 3. number,
As shown in FIG. 7A, which is a diagram corresponding to FIG. It is possible to swing freely in the direction of the arrow, and as shown in FIG. for,
The shoe 2 can be freely swung in the direction of the arrow with respect to the shoe frame 4 using the convex portions 2a, 2a at the central portions of both outer sides of the shoe 2 as fulcrums. Therefore, when the car passes through the joint of the guide rail 1, the shoe 2
Even if it swings back and forth, left and right, or in any other direction,
The vibrations are blocked and not transmitted to the cage.

In addition, the convex portion 2a at the center of the shoe 2, which is in contact with the inner surface of the shoe frame 4, prevents excessive displacement of the car even when the car is shaken abnormally due to mischief by passengers inside the car. It also serves as a stopper to prevent this from occurring. Further, in the event of an earthquake, abnormal movement of sliding bodies such as cages or counterweights can be prevented.

8 to 13 show other embodiments of the present invention, in which the shoe presser foot 10 of the above embodiment is not used. FIG. 8 is a side view of the sliding guide shoe corresponding to FIG. 1, FIG. 9 is a plan view corresponding to FIG. 2, and FIG. 10 is a perspective view showing the shoe 2 and FIG. 4. Equivalent diagram, No. 11
12 is a perspective view showing the vibration isolating rubber 5, and FIG. 13 is a perspective view showing the shoe frame 4. FIG. In this embodiment, when the shoe 2 is fitted inside the shoe frame 4, the protrusions 2b on both sides of the shoe 2 are inserted into the holes 4a on both sides of the shoe frame 4. Then, the outer end surfaces of the convex portions 2a on both outer sides of the shoe 2 come into contact with both inner surfaces of the shoe frame 4. Also,
This shoe 2 is provided with a horizontal rectangular protrusion 2a on the outer right side in FIG. 2a come into contact with each other, and the same operation as in the first embodiment can be performed. moreover,
Holes 2c are bored in the upper and lower parts of the shoe 2 on opposite sides, and by inserting the protrusions 5a on both inner sides of the vibration isolating rubber 5 into the holes 2c, the vibration isolating rubber 5 is attached to the shoe 2. It is ready to be installed. Therefore, in this embodiment, the assembly cost of the sliding guide shoe 2 can be reduced and the shoe 2 can be easily replaced.

With the above configuration, the present invention allows the shoe 2 to be directly inserted into the shoe frame 4 without using the shoe support which was necessary in the past, and
Since the convex portion 2a is provided on the outer side of the approximately central portion of the shoe 2 in the vertical direction, excessive displacement of the vibration isolating rubber 2 can be prevented, and vibration of the car can be suppressed. In addition, since the shoe 2 acts as a fulcrum of the convex portion 2a and relatively swings back and forth and left and right,
For example, even if the joint of the guide rail 1 is deformed into a dogleg shape as shown in Figure 6B, or there is a step as shown in Figure 6C, when the car passes through this joint, The car will not vibrate and the sliding guide show will not be adversely affected. Furthermore, since the vibration isolating rubber 5 is not fixed by adhesive, it is removable and can be easily replaced in case of an emergency. Moreover, this anti-vibration rubber 5 conventionally has
Various forces such as compressive loads, tensile loads, and shear forces are applied to the rubber, but in this invention, only compressive loads are applied, so the life of the rubber can be extended and costs can be reduced.

[Effects of the Invention] As explained above, the present invention adopts a simple structure in which a convex portion is provided in the center of the shoe and anti-vibration rubber is provided in the upper and lower portions of the shoe, thereby effectively transmitting vibrations. This has the effect of making it possible to achieve safe, low-cost, and good riding comfort.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a plan view, FIG. 3 is a perspective view, FIG. 4 is a perspective view of the shoe 2, and FIG. 5 is a shoe presser. 10, FIG. 6A is a sectional view taken along the - line in FIG. 3, and FIGS. 6B and C are side views showing joints of the guide rail 1, respectively.
FIGS. 7A and 7B are explanatory diagrams when abnormal shaking occurs in the shoe 2, FIG. 8 is a side view showing another embodiment of the present invention, FIG. 9 is a plan view, and FIG.
0 is a perspective view of the shoe 2, FIG. 11 is a plan view of the shoe 2, FIG. 12 is a perspective view of the anti-vibration rubber 5, and FIG. 13 is a perspective view of the frame 4. 14 and 15 are a side view and a plan view, respectively, without showing a conventional sliding guide shoe. In the figure, 1 is a guide rail, 2 is a shoe,
2a is a convex portion, 4 is a shoe frame, and 5 is a vibration isolating rubber. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] 1. In a sliding guide shoe that slides along a guide rail, there is a shoe that is guided in contact with the guide rail and has a convex portion formed on the outside of approximately the center in the vertical direction, and a shoe that surrounds the outside of this shoe and is inside the convex portion. 1. A sliding guide shoe comprising a shoe frame whose side surfaces are in contact with each other, the upper and lower portions of the shoe being engaged with and held by the shoe frame through anti-vibration rubber, respectively.