JPH0545076Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention is a multiplexed type that tightly tightens and holds two objects to be tightened, such as split protective sleeves for communication cables, at multiple consecutive locations. This relates to a tightening device.

[Prior Art] A conventional tightening device disclosed in Japanese Utility Model Publication No. 56-46442 has a hook link provided with a hook portion at its tip to be hooked on the engaging portion of one object to be tightened, and a hook link provided on the tip end of the hook portion to be hooked on the engaging portion of one object to be tightened. A mounting board is fixed to an object to be tightened, the base end is pivotally connected to the bearing plate part of the mounting board by a first pivot, and the intermediate part is connected to the base end of the tension link by a second pivot. It consists of a pivotally connected operating lever, and when two objects to be tightened are mutually tightened, the second pivot is positioned on the side of the other object to be tightened with respect to the straight line connecting the hook and the first pivot. be.

[Problems to be solved by the invention] In this conventional device, the tension link and the operating lever are connected to the mounting board fixed to the object to be tightened via the first pivot shaft and the second pivot shaft. When the clamping device is unclamped and the clamped object is removed for the processing operation, all components of the clamping device remain attached to the clamped target. Therefore, if the object to be tightened falls from a high place onto the floor or is thrown roughly, or if it collides with other equipment while placed on the floor, the tightening device may become distorted or deformed. may be damaged.

In addition, when the main body and lid of a transportation container that undergoes a lot of wear and tear are to be tightened, with a fixed type of tightening device like this, when the transportation container is discarded, the still usable tightening device must be disposed of as well. There is a lot of waste because there is no gain.

Therefore, the purpose of the present invention is to be able to remove the entire device from the object to be tightened when the object is unfastened, and to be able to perform tightening at multiple consecutive locations. It is an object of the present invention to provide a non-fixed type multiple interlocking tightening device that allows multiple tightening operations to be performed simply and at once.

[Means for Solving the Problems] The non-fixed multiple type interlocking tightening device of the present invention will be described below using reference numerals in the attached drawings. Hook rods 3 are inserted in series through each tip 21 of the link 4 and hooked simultaneously to a plurality of engaging portions 2 provided in parallel on the object 1 to be tightened, and are arranged in parallel corresponding to the hook links 4. a plurality of tension links 8 and a presser which is inserted in series through the tip end portion 22 of each tension link 8 and is simultaneously pressed against a plurality of engaging portions 6 provided in parallel on the object 5 to be tightened. It consists of a rod 7 and a pivot 11 that is serially inserted through the base end 9 of each tension link 4 and the base end 10 of each tension link 8 and connects a plurality of tension links 4 and tension links 8, When the object to be tightened 1 and the object to be tightened 5 are tightened together, the pivot 11 is positioned on the side of the object to be tightened 5 with respect to the straight line connecting the hook rod 3 and the pressing rod 7.

[Operation] A single hooking rod 3 is simultaneously hooked on the plurality of engaging portions 2, 2 of the object to be tightened 1, and a single pressing rod 7 is connected to each of the plurality of engagement portions 2, 2 of the object to be tightened 5. 6 and then simultaneously push the plurality of tension links 4 connected by a single pivot 11 towards the objects 1 and 5 to be tightened, each tension link 4 will be centered around the engagement part 2. At the same time, each of the plurality of tension links 8 rotates around the engaging portion 6, and each tension link 4 and tension link 8 approach the tightening objects 1 and 5 as one body. do.

When the pivot 11 is on the front side with respect to the straight line connecting the rotation center of the hook rod 3 supported by the engagement part 2 and the rotation center of the pusher rod 7 supported by the engagement part 6, there is no packing between the objects to be tightened. The rotational operation of each tension link 4 and tension link 8 is resisted by the repulsive force caused by the elasticity of the member and the object to be tightened and the elasticity of each hook link and tension link themselves.

At the moment each pivot 11 crosses the straight line connecting the rotation center of the hook rod 3 and the rotation center of the push rod 7 toward the object 5 to be tightened, the repulsive force pushes the tension link 4 and the tension link 8 in the direction. This is converted into an urging force that causes the object to rotate, and each tension link 4 and tension link 8 rotate vigorously, and the base end 9 of each tension link 4 collides with the surface of the object 5 to be tightened.

This completes the closing and tightening of the objects 1 and 5, but the repulsive force acts as a rotational moment in the direction of pressing the base end 9 of each tension link 4 against the surface of the object 5. Therefore, this tightened state is maintained accurately, and the tightening is not unintentionally released due to vibrations, shocks, etc.

When the base ends 9 of each tension link 4 are simultaneously pulled up toward you against this rotational moment, the tension link 4 rotates in the opposite direction around the hook bar 3, and in conjunction with this, each tension link 8 It rotates in the opposite direction around the push rod 7.
At the moment when each pivot 11 crosses the straight line connecting the rotation center of the hook rod 3 and the rotation center of the pusher rod 7 toward the front side, the force in the compression direction acting on each tension link 8 and the force in the tension direction acting on each tension link 4 Power disappears together.

Therefore, the hooking engagement between each engaging portion 2 and the hooking rod 3 and the pressing engagement between each engaging portion 6 and the pressing rod 7 are simultaneously released, and each tension link 4 and tension link 8 are tightened. Can be removed from objects 1 and 5.

[Embodiment] In the illustrated embodiment, the objects 1 and 5 to be tightened are split protective sleeves that cover the connecting portions of communication cables, and a packing member 12 is attached to the joint end surface. The engaging portion 2 consisting of a band-shaped raised portion is integrally molded on the surface of the joint end portion of the object 1 to be tightened.
An arcuate receiving groove 14 is provided on the end surface of each of the engaging portions 2, 2, which protrude parallel to each other, on the opposite side of the joint surface 13. Similarly, the engaging portion 6 made of a band-like raised portion is
It is integrally molded on the surface of the joint end portion of the object 5 to be tightened. Each of the engaging portions 6, 6 protruding parallel to each other has an arcuate receiving groove 16 on the end surface opposite to the joint surface 15.
is provided.

The single hooking rod 3 inserted through the side plate portions 17, 17 of the tip ends 21 of the plurality of hooking links 4 is constituted by a round bar, and the hooking rod 3 is inserted into each of the receiving grooves 14 of the engaging portion 2. mated to. A single pressing rod 7 inserted through the side plate portions 18, 18 at the tips of the plurality of tension links 8 is constituted by a round rod, and the pressing rod 7 is inserted into each of the receiving grooves of the engaging portion 6. 16 is fitted. A single pivot shaft 11 connecting the base end portions 9 of the plurality of hook links 4 and the base end portions 10 of the tension links 8 is constituted by a round bar, and is inserted through each side plate portion 17, 18.

In this embodiment, each tension link 4 is
Engagement parts 2, 2 whose halves protrude from the object 1 to be tightened
Each tension link 8 is housed between the engagement parts 6, 6 protruding from the space and the tightening object 5, and is housed in the other half of each tension link 4 extending from the engagement parts 6, 6. Since the tightening device is accommodated, the entire tightening device fits well, and no excessive protrusion is produced on the surface of the object to be tightened. An escape recess 20 into which the push rod 7 enters is provided in the middle of the side plate 17 of each tension link 4.

In this example, since the object to be tightened is a cylindrical body, each tension link 4 is formed in a curved manner. can also be formed into a curved or straight shape.

In the embodiment shown in FIG. 4, the operating arm section 19 is provided by extending the base end 9 of each tension link 4 in the opposite direction to the hooking rod 3, so that no force is applied to the tip of the operating arm section 19. By doing so, it is possible to rotate each tension link 4 at the same time relatively easily.

[Effects of the invention] As described above, the non-fixed multiple type interlocking tightening device of the present invention hooks the hooking rod 3 inserted through the tip portion 21 of the tension link 4 to the engaging portion 2 of the object 1 to be tightened. On the other hand, the pushing rod 7 inserted through the distal end 22 of the tension link 8 is pressed against the engagement part 6 of the object 5 to be tightened, and when the tension is released, the proximal end 9 of the tension link 4 and the At the moment when the pivot shaft 11 connecting the base end 10 of the tension link 8 crosses the straight line connecting the hook rod 3 and the push rod 7, the engaging portion 2 and the hook rod 3 are hooked into engagement and the engaging portion 6 is pressed. Since the pressing engagement of the rod 7 is immediately released, the tension link 4 and the tension link 8 can be immediately removed from the objects 1 and 5 to be tightened. Therefore, the tightening device can be stored and managed separately from the objects 1 and 5 to be tightened without the risk of damage, and when the objects to be tightened are worn out, there is no need to discard them together, so there is no waste.

Furthermore, the multi-type interlocking tightening device of the present invention has a plurality of hooking links 3 arranged in parallel, each of which has a plurality of hooking links 3, 3 whose ends 2
A plurality of tension links 8, 8 are arranged in parallel corresponding to the hook links 4, through which the hook rods 3 are inserted.
A push rod 7 is inserted through each tip end portion 22, 22 of the object 1. After the hook bar 3 is simultaneously engaged with each engaging portion 2, 2 of the object 1 to be tightened, the push rod 7 is inserted into the tip end portions 22, 22 of the By simultaneously engaging each engaging portion 6 of the object 5 to be tightened and pushing down each tension link 4, the objects 1 and 5 to be tightened can be tightened at multiple consecutive locations, and long It is suitable for tightening objects almost evenly over the entire length.

Further, each tip 21 of the plurality of tension links 4 is connected by a single hooking rod 3, and each tip 21 of the plurality of tension links 8 is connected by a single push rod 7. Since each base end 9 of the tension link 4 and each base end 10 of the tension link 8 are connected by a single pivot 11, the engaging parts 2, 2 of each tension link 4, 4 The hooking operation to the tension links 8, 8 and the pressing operation of the tension links 8, 8 to the engaging portions 6, 6 are both performed in one operation, and the depression operations of each tension link 4 and the tension links 8 are also linked. Since this is done at once, even if the tightening device has a composite structure in which a plurality of tension links 4 and tension links 8 are arranged in parallel, its operation and handling can be made extremely simple.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a non-fixed multiple type interlocking tightening device of the present invention, and FIG. 2 is a perspective view of essential parts of a protective sleeve for communication cables equipped with the tightening device.
FIG. 3 is a longitudinal sectional view in the tightened state. FIG. 4 is a left side view of a tightening device according to another embodiment of the present invention. 1... object to be tightened, 2... engaging portion, 3... hook bar, 4... tension link, 5... object to be tightened, 6...
...Engaging portion, 7...Pushing rod, 8...Tension link, 9
... Base end of tension link, 10 ... Base end of tension link, 11 ... Pivot, 12 ... Packing member, 13 ... Joint surface, 14 ... Receiving groove, 15 ... Joint surface, 16 ... Receiving groove, 17 ... Side plate part of tension link, 18 ... Side plate part of tension link, 19 ...
Operation arm portion, 20...Escape recess, 21...Tension link tip, 22...Tension link tip.

Claims (1)

[Scope of claims for utility model registration] (1) A plurality of hook links 4 arranged in parallel,
A hook bar 3 is inserted in series through each end portion 21 of the hook link 4 and simultaneously hooked on a plurality of engaging portions 2 provided in parallel on the object 1 to be tightened, and A plurality of tension links 8 arranged in A pivot 1 that is serially inserted through the push rod 7, the base end 9 of each tension link 4, and the base end 10 of each tension link 8, and connects the plurality of tension links 4 and tension links 8.
1, and when the objects to be tightened 1 and 5 are tightened together, the pivot 11 is positioned on the side of the object to be tightened 5 with respect to the straight line connecting the hook rod 3 and the push rod 7. Multiple type interlocking tightening device. (2) The tightening device according to claim (1), wherein the operating arm portion 19 is provided by extending the base end portion 9 of each of the plurality of tension links 4 to the side opposite to the hook rod 3. (3) Half of each of the plurality of tension links 4 is accommodated between the engaging parts 2, 2 protruding from the tightening object 1 and between the engaging parts 6, 6 protruding from the tightening object 5. The tightening device according to claim 1, wherein a plurality of tension links 8 are accommodated in the other half of each tension link 4 extending from the engaging portions 6, 6.