JPH0681480A - Suspension mechanism with relative vertical displacement absorbing mechanism - Google Patents

Abstract

PURPOSE:To change the relative length of a suspension rod, locked between two support materials according to displacement between the two support materials by a method wherein displacement in a vertical direction between a substance to be supported and a support body to support the substance to be supported is absorbed. CONSTITUTION:Support materials 11 and 12 are positioned vertically facing each other with a distance therebetween. A slide member 13 is arranged on the upper surface of the support material 12, and a slope 14 is formed on the upper surface of the slide member 13. A through-oblong hole 15 is vertically formed in the slide member 13, and the upper and lower ends of a suspension rod 16 loosely vertically extending through the slide member 13 and the two support members 11 and 12 are locked to the upper end of the slide member 13 and the lower end of the support material 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention is applicable to civil engineering, construction, bridges,
The present invention relates to a suspension device with a relative vertical displacement absorption mechanism used in the field of machinery and the like.

[0002]

2. Description of the Related Art In the field of construction, for example, as shown in FIG. 11, when an existing object 51 is structurally approached (especially for supporting a vertical load) by a mounting object 52 thereon. , It is necessary to support this existing thing by some means.

Therefore, conventionally, a supporting structure 53 such as a steel tower is newly provided in the vicinity of the existing structure 51, and a supporting member 54 horizontally protruding from the existing structure and a supporting structure 54 protruding horizontally from the supporting structure 53. The support member 55 is fixed, and the load of the existing object 51 is also applied to the support structure 53.

[0004]

By the way, when the existing object 51 to be supported is large, for example, the existing object 5 receives heat from direct sunlight or temperature due to high temperature.
1 and the support structure 53 expand and contract greatly every moment.

However, since the existing object 51 and the supporting structure 53 that supports the existing object 51 are not generally the same in size, structure, and material, the contraction degree of the two is different, and both of them are different. Is fixed by the support members 54 and 55, and thus the expansion and contraction of the existing members 51
The support structure 53 may be destroyed.

For example, as shown in FIG.
Alternatively, when the opposing surface sides of the support structure 53 contract, a downward force is applied to the support members 54 and 55, whereby the existing structure 51 side of the support structure 53 also contracts. At this time, since the shrinkage tolerances of the two are different, there is a possibility that one of the structures will break from the opposing surface side.

On the contrary, as shown in FIG. 13, when the opposite side of the existing object 51 or the support structure 53, that is, the outside, contracts, an upward force is applied to the support members 54 and 55, and eventually, There is a risk of destruction from the outside of the structure.

The cause of this is that both structures are supported by the support members 54,
It is fixed at 55.

[0009]

To solve the above problems, as shown in FIGS. 1 to 3, a support member 2 for a supporting object 1 and a supporting member for supporting the supporting object 1 are provided. While fixing the support member 4 of the body 3, the suspension rod 5 that expands and contracts in length between the support members 2 and 4 corresponding to the approach and separation of the support members 2 and 4 is attached to the support members 2 and 4. It can be locked between the top and bottom. Then, the support target 1 and the support body 3 expand and contract, and the two support members 2 and 4 are locked while responding to any change in the vertical direction of the support members 2 and 4, Supporting object 1
Therefore, the destruction of the support 3 can be prevented.

The structure of the present invention for realizing this will be described with reference to FIG. 4. The support member 11 horizontally protruding from the support target and the support target located near the support target. A support member 12 that horizontally projects from a support for supporting an object is vertically opposed to the support member 12 with a space therebetween, and the upper surface is supported on the upper surface of one of the support members 12 that is located above. A slide member 13 slidable between the object and the support is provided, and an inclined surface 14 inclined to either the object to be supported or the support is formed on the upper surface of the slide member 13, and the slide member 13 is slidable as described above. Through-hole 1 having a long axis in the direction
5 is drilled in the vertical direction, and the slide member 13 and both support members 1
The upper and lower ends of the suspension rod 16 that vertically penetrates the first and the second members 12 and 12 are locked to the upper end of the slide member 13 and the lower end of the support member 11 located below, respectively. is there.

[0011]

When the two support members 11 and 12 are close to each other, the length between the two support members 11 and 12 is shortened, and an excess amount is generated at the lower end of the suspension rod 16 due to its own weight.
The function of locking 12 cannot be exhibited. In order to prevent this, the suspension rod 1 between the upper and lower ends of both support members 11 and 12
The length of 6 (hereinafter referred to as "relative length") must be shortened.

However, according to the present invention, the slide member 13 having the through long hole 15 through which the hanging rod 16 freely penetrates,
Since it is slidable on the support member 12 and the slope 14 is formed on the upper surface thereof, if the slide member 13 is moved as shown by the arrow in FIG. The upper end climbs up the slope 14, resulting in a shorter relative length.

On the other hand, when the two support members 11 and 12 are separated from each other, the upper end locking portion of the suspension rod 16 tries to slide down the slope 14, and as shown in FIG. The slide member 13 moves in the direction of the arrow in the figure,
The relative length becomes longer.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, a support beam 22 is horizontally provided from an object 21 to be supported.
A supporting beam 25 having a convex portion 24 at a projecting end is horizontally provided from a supporting body 23 for supporting the supporting beam 25. The supporting beam 25 is located above the supporting beam 22.

A guide rail 26 is provided on the upper surface of the supporting beam 25 as shown in FIG.
On the upper surface of 6, a relative vertical displacement absorption metal fitting (Vertical Displacement Ab) that is a slide member is provided.
A sorber (hereinafter referred to as “VDA metal fitting”) 27 is slidably provided. On the upper surface of the VDA metal fitting 27, a sloped portion 28 inclined 45 ° toward the support 23 side is formed.
Further, a long hole 29 is formed. A coil spring 30 is disposed between one side surface of the VDA metal fitting 27 and the convex portion 24, and biases the VDA metal fitting 27 toward the object 21 side.

On the other hand, one end of a cable 31 for detecting relative vertical displacement is fixed to the other side surface of the VDA metal fitting 27, and the other end of this cable 31 is a target via a pulley 32 provided on the support member 23. It is fixed to the tip of a support member 33 provided above the object 21.

A locking body 35 having a slanted lower surface is fixed to the upper end portion of a suspension rod 34, which freely penetrates the long hole 29 of the VDA metal fitting 27 and the supporting beams 25 and 22, and is also suspended. A lock body 36 made of a washer and a nut material is screwed to the lower end of the rod 34. Further, a rod holding device 37 including a coil spring or the like is provided between the locking body 35 and the support member 33, and restricts the left and right (left and right in FIG. 7) movements of the suspension rod 34.

Furthermore, in this embodiment, the suspension rod 34 is used.
Strain gauges 38 are provided at appropriate positions, and when a twist or the like of the suspension rod 34 is detected, it is measured by a separately provided measuring device 39 and is sequentially monitored by a monitor 40, or a lamp 41 if necessary. An alarm is appropriately issued by the buzzer or the buzzer 42.

This embodiment is constructed as described above,
The state of FIG. 7 shows a state where the supporting beams 22 and 25 are closest to each other. Then, from this state, the supporting beam 2
When 2 and 25 are separated from each other, the suspension rod 34 is lowered, and accordingly, the locking body 35 tries to slide down the sloped portion 28 of the VDA metal fitting 27, and also assists the biasing of the coil spring 30. The VDA metal fitting 27 is moved to the left side by helping, and the relative length of the suspension rod 34 is increased.

On the contrary, when the supporting beams 22 and 25 come close to each other, the distance between the supporting member 33 and the supporting member 25 increases, so that the coil spring of the rod holding device 37 causes the locking member 3 to move.
5 is pulled up and the cable 31 moves the VDA metal fitting 27 to the right against the biasing force of the coil spring 30, so that a wedge is just driven between the locking body 35 and the supporting beam 25. The locking body 35 is VDA
As the climbing part 28 of the metal fitting 27 is climbed, the relative length of the suspension rod 34 becomes shorter.

In the above embodiment, since the strain gauge 38 is provided, if some kind of accident occurs in the above operation process and an abnormal load is applied to the suspension rod 34 or twisting occurs, the Is immediately detected.

Since the moving distance of the VDA metal fitting 27 is the same as the moving distance of the cable 31, as shown in FIG. 9, the relative displacement can be detected by this cable 31.

Further, the angle of the slope portion 28 of the VDA metal fitting 27 is set to 45 °, but if the angle is made smaller, the movement of the VDA metal fitting 27 becomes smoother. FIG. 10 shows an example in which the angle is 27 °. In this case, a roller bearing or the like may be appropriately installed on the lower surface of the VDA metal fitting 27.

[0024]

According to the present invention, the relative length of the suspension rod for locking the supporting object from the supporting object and the supporting body supporting the supporting object corresponds to the approaching and separating of both supporting materials. Since it can be changed, it can follow the change in the distance between both support materials due to expansion and contraction of the support object and support due to heat and temperature, and such expansion and contraction destroys the support object and support. There is nothing to do.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a state where a suspension rod should be in a case where both support materials approach each other.

FIG. 2 is an explanatory diagram showing a state of a suspension rod when both support members are in a normal state.

FIG. 3 is an explanatory view showing a state where a suspension rod should be in a case where both support members are separated from each other.

FIG. 4 is an explanatory view showing a state in which both of the support materials are in a normal state in the present invention.

FIG. 5 is an explanatory diagram showing a state in the case where both support materials approach each other in the present invention.

FIG. 6 is an explanatory view showing a state where both the support materials are separated in the present invention.

FIG. 7 is a side view of the embodiment.

FIG. 8 is a perspective view of a VDA metal fitting in the embodiment.

FIG. 9 is an explanatory diagram showing an operational relationship between a VDA fitting and a cable in the embodiment.

FIG. 10 is an explanatory diagram showing a state in which a moving pulley is interposed in a cable.

FIG. 11 is an explanatory diagram showing a state in which an existing object is supported by a support structure.

FIG. 12 is an explanatory diagram showing a state in which an existing object or a support structure is destroyed by contraction.

FIG. 13 is an explanatory diagram showing a state in which an existing object or a support structure is destroyed by stretching.

[Explanation of symbols]

 11, 12 ... Supporting material 13 ... Sliding member 14 ... Slope 15 ... Penetrating elongated hole 16 ... Suspension rod

Claims (1)

[Claims] 1. A support member that horizontally projects from a support target and a support member that projects horizontally from a support located near the support target for supporting the support target And a slide member slidable between the support object and the support body is provided on the upper surface of one of the support members located above either one in the vertical direction. A slanted surface is formed on either the support target or the support side, and a through slot having a long axis in the sliding direction is vertically formed in the slide member to vertically connect the slide member and both support members. A suspension device with a relative vertical displacement absorption mechanism, characterized in that the upper and lower ends of a suspension rod that freely penetrates into the upper and lower ends of the above-mentioned slide member and the lower end of another supporting member located below are respectively locked.