JPH092779A - Movable suspending device - Google Patents

Abstract

PURPOSE: To always smooth the movement of a trolley along a guide rail even if a tool is moved in any directions, by making a movable suspending device in which the rolling direction of rollers provided on the trolley is not easily deviated from the traveling direction of the trolley even when a tool is diagonally moved in relation to the guide rail, and the rollers are quickly returned to their original positions even if they are deviated. CONSTITUTION: A movable suspending device 1 wherein a trolley 3 in which respective rollers 31 to be respectively placed on right and left parts of traveling paths 21 of a guide rail 2 are symmetrically provided with the clearance is arranged in relation to a guide rail on which the traveling paths 21 are symmetrically formed in the width direction and along the longitudinal direction, and an object to be moved is to be suspended from the trolley 3, the traveling paths 21 of the guide rail 2 are formed into inclined surfaces whose sectional forms in the width direction forms the approximately mountain shape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable suspending device for suspending a tool, a hoist or the like on an elevated guide rail installed along a production line via a trolley.

[0002]

2. Description of the Related Art In a production line in which an object to be manufactured is moved sequentially along a line, working tools such as tools and hoists used in each part of the line can be moved in a fixed space. As shown in FIG. 8, an elevated guide rail is installed along the line in order to hang the tool on the guide rail via a trolley equipped with rollers. It is commonly done.

In such a movable suspension device, as shown in FIG. 9 or FIG. 10, the guide rail 2 has a longitudinal direction so that a tool having a certain weight can be supported in a stable state. A traveling path 21 is formed symmetrically along the rollers, and the trolley 3 is provided with rollers 31 placed on the left and right portions of the traveling path 21 of the guide rail 2 in a symmetrical manner at intervals. In addition, a hanging portion 34 for a tool or the like is provided substantially below the center of the trolley 3 so that the load of the tool or the like is evenly applied to each roller 31.

[0004]

By the way, in each of the above-mentioned conventional movable suspension devices, the left and right portions of the guide rail travel path are on the same horizontal plane, and the spacing is set on the same horizontal plane. The left and right rollers, which are rotatably fixed to the trolley in the opened state, are placed so that their rotation axes are orthogonal to the extending direction of the guide rails.

Therefore, when a tool or the like is moved obliquely with respect to the guide rail, the rolling direction of each roller is oriented in the oblique movement direction, which is different from the traveling direction of the trolley along the guide rail. Therefore, there is a problem that the rolling direction of the roller deviates from the traveling direction of the trolley, so that the trolley cannot move smoothly along the guide rail, and once the direction of the roller deviates, it is difficult to return to the original state. .

An object of the present invention is to eliminate the inconveniences of the above-described conventional movable suspension device.
More specifically, even when a tool or the like is moved diagonally with respect to the guide rail, the rolling direction of the roller provided on the trolley is less likely to deviate from the traveling direction of the trolley, and even if the roller deviates quickly. An object of the present invention is to provide a movable suspension device that can always make the movement of the trolley along the guide rail smooth regardless of the direction in which the tool or the like is moved. I am trying.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and to achieve the object, the present invention, as described in the above-mentioned claim 1, symmetrically in the width direction along the longitudinal direction. With respect to the guide rail on which the traveling path is formed, a trolley in which the rollers mounted on the left and right portions of the traveling path of the guide rail are symmetrically provided with a space provided is arranged, and the trolley is moved to the trolley. A movable suspension device for suspending an object is characterized in that a travel path of a guide rail is formed on an inclined surface having a substantially mountain-shaped cross section in a width direction.

Further, in the movable suspension device as described above, as described in claim 2, a trolley is provided between the two guide rails arranged in parallel with each guide rail. One guide rail that is orthogonal to the guide rails is movably arranged via the guide rail, and a trolley that suspends an object to be moved is arranged on the one guide rail. The cross-sectional shape in the width direction is formed into an inclined surface having a substantially mountain shape.

[0009]

[Operation] With the above-mentioned configuration, the rollers that are rotatably fixed at intervals are such that if the rolling direction of the rollers deviates from the traveling direction of the trolley, both rollers will travel on the traveling path. On the other hand, the weight of the tool or the like suspended on the trolley acts as a force for constantly lowering the inclined surface of the traveling path against both rollers.

Therefore, the weight of the tool hanging on the trolley always acts as a force for preventing the rolling direction of the roller from deviating from the traveling direction of the trolley,
No matter what direction the tool or the like is moved, the rolling direction of the rollers provided on the trolley is unlikely to deviate from the traveling direction of the trolley, and even if it deviates, it will immediately return to the original position.

Further, according to the structure as described in claim 2, the movement range of the tool or the like can be widened, and one guide rail for suspending the tool or the like is used as two guide rails. When the guide rails are moved along the guide rails, it is difficult for the one guide rail to shift from the direction orthogonal to the two guide rails, and even if it shifts, the guide rails will immediately return to their original positions, so that the guide rails can travel smoothly. Can be done.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the movable suspension device of the present invention will be described below with reference to the drawings.

FIG. 1 shows a movable suspension device according to an embodiment of the present invention as viewed from the longitudinal direction of a guide rail. The suspension device 1 comprises a guide rail 2 and a trolley 3. The guide rail 2 has a running path 21 formed symmetrically from the lower part in the center in the width direction on both sides, and the trolley 3 is provided with rollers 31 arranged symmetrically at intervals. The trolleys 3 can be smoothly moved along the guide rails 2 by rolling the rollers 31 on the traveling path 21 extending along the longitudinal direction of the guide rails 2.

The guide rail 2 is formed so that its cross-sectional shape in the width direction is bilaterally symmetrical, and the traveling path 21 is integrally formed so as to extend from the lower end of the upper base portion 22 having a T-shaped cross section to both sides thereof. All of the left and right parts of the running path 21 are sloped downward from the lower end of the upper base 22 toward the outside, and the running path 21 as a whole has the lower end of the upper base 22 at the top. As an inclined surface having a chevron cross section, the longitudinal surface of the guide rail 2 extends.

The trolley 3 is formed symmetrically when viewed from the front (longitudinal direction of the guide rail 2),
The mounting brackets 33 of the rollers 31 are fixed to the respective rising portions 32a of the suspension brackets 32 whose both sides are raised obliquely upward.
A roller 31 is rotatably supported by a bearing (not shown).

In this embodiment, the mounting shaft 33, which is the axis of rotation of each roller 31, is mounted on the traveling path 2 of the guide rail 2.
Although it is arranged substantially parallel to the inclined surfaces of the left and right parts of 1,
The mounting shaft 33 does not necessarily have to be arranged parallel to the inclined surface of the traveling path 21.

The trolley 3 has rising portions 32 on both sides.
On the bottom part 32b of the hanging bracket located between a,
A ring portion 34 for suspending the tool 4 is fixed, and a working tool such as a tool or a hoist is suspended on the trolley 3 via the ring portion 34.

By the way, in the above-mentioned movable suspending device composed of the guide rail and the trolley, as shown in FIG. The trolley 3 is moved along the elevated guide rail 2 installed along the line. At that time, when the working place is not directly below the guide rail 2, as shown in FIG. The direction in which 3 is pulled is angularly offset from the direction in which the guide rail 2 extends.

As a result, as shown in FIG. 5, each roller 31 provided on the trolley 3 is angularly displaced with respect to the X direction along the traveling path 21 of the guide rail 2 (that is, each roller 31). However, the original rotation axis direction Y
On the other hand, there is a shift so as to rotate around the point C).

Then, in the conventional suspending device as shown in FIG. 9 or FIG.
Since 1 is a flat surface, the deviation of each roller 31 does not automatically return, and the rolling direction and the traveling direction of the roller 31 are different, so that the trolley 3 is smoothly moved along the guide rail 2. As the trolley 3 is moved along the guide rail 2 in that state, the displacement of each roller 31 increases and it becomes difficult to return to the original state.

On the other hand, the suspension device 1 of this embodiment
Then, the left and right parts of the guideway 2 on the running path 21 are
In each case, the slope is a downward slope from the lower end of the upper base portion 22 toward the outside, and the traveling road 21 as a whole has an upper base portion 2
The cross section in the width direction with the lower end of 2 as the apex is a mountain-shaped inclined surface.

Therefore, as shown in FIG. 4, the force F / F applied to each roller 31 by the weight of the tool 4 is always present.
2 (the force F that is applied to the entire trolley 3 and distributed to the rollers) is a force F _y that pushes the roller 31 against the inclined surface of the traveling path 21 and a force F that lowers the roller 31 along the inclination of the traveling path 21. It will be distributed to _X and.

As a result, as shown in FIG. 5, even when each roller 31 is displaced from the point A to the point B so as to rotate about the point C, the force F _X is applied to each roller 31 at the point B. As long as it works, each roller 31 is automatically returned from the point B to the point A by the force F _X2 of the force F _X decomposed into the force F _X1 and the force F _X2 .

Therefore, in the suspension device 1 of the present embodiment, the force F hanging on the trolley 3 due to the weight of the suspended tool or the like causes the rolling direction of the roller 31 to deviate from the traveling direction of the trolley 3. The roller 31 provided on the trolley 3 is unlikely to slip on the traveling path 21 no matter what direction the tool or the like is moved. Will be returned to.

In the above description of the embodiment, the trolley for suspending tools and the like is arranged with respect to one guide rail along the production line. Is a biaxial rail in which a guide rail orthogonal to the two guide rails along the production line is movably arranged, and a trolley for suspending tools etc. is arranged on the one guide rail. As for, it can be used more effectively.

That is, as shown in FIG. 7, with respect to two guide rails 2A and 2B arranged in parallel, a guide rail 2C orthogonal to the guide rails 2A and 2B is movably arranged, and with respect to the guide rail 2C. In the case of the biaxial rail in which the trolley 3 for suspending tools and the like is arranged, the suspension device 1 includes not only a portion for suspending the tools and the like but also a guide as shown in FIGS. 6 and 7. It can also be applied to a movable hanging portion between rails.

By applying the suspending device 1 to each movable suspending portion of the biaxial rail as described above, the moving range of the tool and the like can be further increased and one guide in which the tool and the like are suspended is provided. When the rail is moved along the two guide rails, the one guide rail is less likely to be displaced from the direction orthogonal to the two guide rails, and even if the rails are displaced, the guide rails immediately return to their original positions. The guide rail itself can travel smoothly.

[0028]

According to the movable suspension device of the present invention as described above, even when the tool or the like is slanted with respect to the guide rail, the rolling direction of the roller provided on the trolley is the trolley. It is difficult to shift from the traveling direction, and it will return to the original position immediately even if it shifts, so it is possible to make the movement of the trolley along the guide rail smooth regardless of the direction of the tool etc. The position of tools etc. can be easily adjusted during work.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a movable suspension device of the present invention.

FIG. 2 is a side view illustrating a usage state of the uniaxial rail according to the embodiment shown in FIG.

3 is an explanatory top view showing a usage state of the embodiment of the uniaxial rail shown in FIG. 1. FIG.

FIG. 4 is a front explanatory view showing a state of a force hanging on a roller of a trolley due to a weight of a tool or the like in the embodiment shown in FIG.

FIG. 5 is an explanatory top view showing a state of a force hanging on a roller of the trolley due to a weight of a tool or the like in the embodiment shown in FIG.

6 is a front view showing a usage state of the biaxial rail of the embodiment shown in FIG. 1. FIG.

7 is a top view of the biaxial rail shown in FIG.

FIG. 8 is a side view showing the general concept of the movable suspension device.

FIG. 9 is a front view showing a conventional example of a movable suspension device.

FIG. 10 is a front view showing another conventional example of the movable suspension device.

[Explanation of symbols]

 1 Movable suspension device 2 Guide rail 3 Trolley 21 Traveling path (for guide rail) 31 Roller (for trolley)

Claims (2)

[Claims] 1. A guide rail in which a traveling path is formed symmetrically in the width direction along the longitudinal direction, with respect to a guide rail, the rollers mounted on the left and right portions of the traveling path of the guide rail are spaced apart from each other. In a movable suspension device in which trolleys that are placed symmetrically are placed and a moving object is suspended on the trolley, the travel path of the guide rail is formed on an inclined surface whose cross-sectional shape in the width direction is approximately mountain-shaped. A movable suspension device characterized by being provided. 2. One guide rail, which is orthogonal to the two guide rails arranged in parallel with each other via a trolley between the guide rails, is movably arranged. A trolley for suspending an object to be moved is arranged on a guide rail of a book, and the travel paths of all of the guide rails are formed on an inclined surface whose cross-sectional shape in the width direction is substantially mountain-shaped. Claim 1
Movable suspension device according to.