JP3035646B2 - Child girder for receiving wiring and piping material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to wiring of cables and the like,
This is related to the sub-girder for the wiring / piping material receiver installed between the main girders of the wiring / piping material receiving device such as a cable rack for pulling the piping material, and especially reduces the pulling force when pulling the wiring and piping material. The present invention relates to a sub-girder for receiving wiring and piping materials.

[0002]

2. Description of the Related Art The technique disclosed in Japanese Utility Model Laid-Open Publication No. Sho 62-172210 is disclosed as a conventional child girder for this type of wiring and piping material receiver. 7 and 8, a wiring / piping material receiving device 1 includes a main girder 2 formed of a plate material such as aluminum having a constant cross-sectional shape, a plurality of sub-girder 10 and a plurality of It is composed of an extension roller 11 and has a ladder shape as a whole. The sub girders 10 are provided at predetermined intervals in the length direction of the wiring / piping material receiver 1, and are made of an aluminum material or the like having a constant cross section. The extension roller 11 is disposed at an appropriate position between the child beam 10 and a roller shaft 12 erected between the parent beams 2.
And a disk-shaped rotary roller 13 rotatably mounted on the roller shaft 12. The roller shaft 12 is attached to a cover 12 a provided at an end thereof by using a mounting screw 8 on a main girder 2. Mounted on W is a cable placed on the rotating roller 13.

[0003] This conventional wiring and piping material receiving device 1 comprises
Since the zero rotation roller 13 rotates about the roller shaft 12, the pulling force for pulling the wiring or piping material such as the cable W drawn through the rotation roller 13 during the wiring work is reduced, and the work is facilitated. Can be. After the cable W has been pulled into the wiring / piping material receiver 1, the cable W is supported by the sub-spar 10. In other words, the extension roller 11 functions to reduce the drawing force, and the sub-spar 10 functions to support the cable W after drawing.

[0004]

The cable W
In order to reduce the drawing force of the
It is desirable that a large number be provided between zero. However, arranging a large number of extension rollers 11 only for reducing the drawing force is wasteful as a member, and the economic burden is large. Therefore, it is conceivable to reduce the costs of the entire sub-girder 10 and the extension wire 11 by also using the extension roller 11 as the sub-girder 10 for supporting the cable W.

[0005] However, the wiring / piping material receiver 1 is provided with a roller shaft 12 inserted through a rotating roller 13 of an extension roller 11.
The roller shaft 12 is formed of a small-diameter cylinder or a round bar for supporting the rotating roller 13. Therefore, when the extension roller 11 is used as the sub-girder 10, the mounting strength is low, and the function as the sub-girder cannot be sufficiently exhibited.
As a result, the number of wirings such as the cable W to be drawn in or the number of pipes drawn in is restricted.

In view of the above, there is a demand for a sub-girder that increases the mounting strength, reliably supports the cable W, and also functions as a drawing roller that reduces the drawing force of the cable W.

[0007] In view of the above, the present invention provides a wiring / wiring which can secure a required mounting strength and reduce the drawing force of wiring and piping materials.
It is an object of the present invention to provide a child girder for a pipe material receiving member.

[0008]

According to a first aspect of the present invention, there is provided a child girder for a wiring and piping material receiving member, comprising: a supporter provided between the parent girders of the wiring and piping material receiving member; A plurality of rotating rollers arranged in a length direction to reduce a drawing force of wiring and piping materials, and a plurality of holding members which are fitted to the support body from above in a retaining state from above and hold the rotating roller rotatably. And a body.

According to a second aspect of the present invention, there is provided a child girder for receiving a wiring / piping material, wherein the supporting member according to the first aspect has a supporting portion that opens upward, and the holding member is formed of the supporting member. Are fitted in the support portion from above through the opening so as to be prevented from falling off. Further, according to the third aspect of the present invention, there is provided a wiring and piping material receiving device.
3. The holding member according to claim 1 or 2, wherein the child girder for the tool is provided.
Are elastically locked to the support. Claim 4
The sub-girder for receiving the wiring and piping material according to the invention of claim 1 is claim 1.
4. The support according to claim 1, wherein the support is a support.
Are housed and locked inside. Claim 5
According to the invention, there is provided a child girder for receiving a wiring and piping material.
The support according to any one of claims 4 to 5,
It locks with a flange projecting from the opening of the part. So
And a child for receiving a wiring / piping material according to the invention of claim 6.
The digit is a number according to any one of claims 1 to 5.
Roller and holder are inserted through each through hole
They are integrally accommodated in a support.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the figure, a wiring / piping material receiver 1 is composed of a main girder 2 formed of a plate material such as aluminum having a constant cross-sectional shape, and a plurality of sub-girder 3 erected at predetermined intervals between the main girder 2. Have been. The sub-spar 3 has a plurality of columnar rotating rollers 5 arranged in a longitudinal direction on a support 4 which is formed in a substantially semi-cylindrical shape having a constant cross section and opens upward. , The cable W is drawn in and placed.

The support 4 has screw mounting portions 4a on both inner surfaces.
Is provided, and an internal space 4 is provided in a support portion 4b having a substantially half cylindrical shape.
c are formed, and a plurality of holding members 6 made of a plate material are erected on the bottom surface at predetermined intervals in the length direction. The holder 6 has a through hole 6a. The holding member 6 is integrally provided with locking portions 6b which are always elastically expanded outward at both end portions, and are elastically attached to the flanges 4d on both sides of the upper opening of the support member 4. Locking prevents upward removal. Further, each of the rotating rollers 5 has a through hole formed in the axis thereof, and is rotatably held by the holding member 6 through a shaft 7 made of a round bar or the like penetrating the through hole. 6 are arranged.

Here, the support 4 has a constant cross-sectional shape and can be formed easily by extrusion of synthetic resin, aluminum or the like. Note that the support 4 is not limited to the shape shown in FIG. 1. For example, the support 4 may have an H-shaped cross section, a rectangular tube, a plate reinforced with ribs, or the like.
It can be any shape having the required mounting strength,
The screw mounting portion 4a can also be provided on the outer surface on both sides of the support 4. Further, the rotating roller 5 can be formed using a synthetic resin or the like. However, when the rotating roller 5 is formed into a thin cylindrical shape, a lightweight metal such as aluminum can be used. Then, as shown in FIG. 3, a cavity 5b may be appropriately formed for weight reduction. In short, the rotating roller 5
Any material may be used as long as it rotates smoothly, has a predetermined mounting strength with respect to the cable W, and is lightweight. Further, the holder 6 can be integrally formed using a synthetic resin.

With such a structure, the rotating roller 5
In order to attach the shaft member 7 to the support 4, first, the shaft 7 is inserted into the through-hole of each rotating roller 5 and the through-hole 6 a of the holder 6, and then these are integrally integrated from the upper opening of the support 4 as it is. Push into the space 4c. Then, the locking portion 6 of the holding body 6
b is accommodated in the internal space 4c while being elastically pressed inward by the flange 4d of the support 4, and when the accommodation is completed, the locking portion 6b of the holder 6 is brought into contact with the back surface of the flange 4d of the support 4. The rotation roller 5 is attached to the support body 4 by being locked to prevent removal upward. Thereby, the sub-spar 3 is completed. However, in assembling the sub-spar 3, first, after the holder 6 is fitted into the internal space 4 c from above the support 4, the rotating roller 5 is disposed between the holders 6,
While holding the rotating roller 5, the shaft 7 is inserted into the through hole 6 of the holder 6.
a and can be inserted into the through holes of the rotating roller 5 and assembled.

The sub-spar 3 constructed as described above is provided with a support 4
The mounting screws 8 that penetrate through the main girder 2 are screwed into the screw mounting portions 4a formed on both side surfaces of the main girder 2 from the side.
Mounted on the side.

Next, the operation of the child girder of the embodiment constructed as described above will be described. When the cable W is pulled into the wiring / piping material receiver 1, the rotating roller 5 of the child beam 3 rotates while being held by the holder 6, so that the sliding resistance between the cable W and the child beam 3 is small. And the retraction force is reduced. Here, the rotating roller 5 is held by a plurality of holders 6 and a shaft 7, and the holder 6 is supported by a support 4. Therefore, the load of the cable W applied to the rotating roller 5 is applied to the shaft 7, and the load applied to the shaft 7 is supported by being shared by the plurality of holders 6, respectively.
Finally, it is supported by the support 4. For this reason, in the conventional example, since the roller shaft 12 for rotating the rotating roller 13 is supported only at both ends, the roller shaft 12 made of a member such as a small-diameter cylinder or a round bar having a small mounting strength is used. In this embodiment, the rotating roller 5 is held by a plurality of holding members 6, while the excessive load is applied to the holding member 6.
Are formed in a substantially semi-cylindrical shape and are supported by a supporting body 4 having a large mounting strength, and the supporting body 4 can be arbitrarily shaped and the strength can be appropriately increased. The mounting strength as a whole is much higher.

As described above, according to the child girder for receiving the wiring and piping material of the present embodiment, the child girder 3 supports the cable W and reduces the drawing force. It is possible to reduce the pull-in force of the cable W and to stably support the cable W with a small number of attachments without providing a large number of wires 11, thereby reducing the cost of the wiring and piping material receiver 1. In particular, in the child girder for receiving the wiring and piping material according to the present embodiment, the locking portion 6b of the holder 6 is elastically expanded, and is inserted into the internal space 4c from above through the upper opening of the support 4. After this, the locking portion 6b engages with the flange 4d of the support 4 and is fitted in a retaining state. Therefore, the operation of pushing the holder 6 into the internal space 4c as it is with one hand is extremely required. The holder 6 can be easily attached, and the rotating roller 5 can be attached. For this reason, for example, after assembling the sub-spar 3 to the parent girder 2, the holding member 6 can be inserted into the internal space 4c of the support 4 from above, and the rotating roller 5 can be assembled. Further, since the holding body 6 is fitted in the retaining state, the holding body 6 is stably held on the support body 4.

Next, another embodiment of the present invention is shown in FIG.
In the drawing, a support 4 made of a plurality of plate members is provided on a support 4.
Are inserted through the upper opening, and the support
On the bottom of the A cylindrical shaft portion 6c protruding outward is integrally provided at the center of both sides of the holding body 6. On the other hand, the rotating roller 5 has a cylindrical shape,
A shaft hole 5a rotatably engaged with the shaft portion 6c of the holding body 6 is formed in the center of both side surfaces, and a space 5b is appropriately formed for weight reduction. Therefore, the rotating roller 5
Is pivotally supported by the shaft 6c of the holder 6 so that it can rotate smoothly. The child girder of this embodiment can also expect the same operation and effect as the embodiment having the shaft body 7 described above.
In particular, the shaft 7 can be eliminated.

In this embodiment, a cylindrical shaft portion 6c is integrally provided at the center of both sides of the holding member 6, and the rotating roller 5 is provided.
A shaft hole 5a rotatably engaged with the shaft portion 6c of the holding body 6 is formed at the center of both side surfaces of the holding member 6. On the contrary, a shaft hole is provided on the holding body 6 side, and Shafts projecting to both outsides may be provided to pivotally support the rotating roller 5.

Further, in each of the above embodiments, the holding member 6 is provided upright between the respective rotating rollers 5, but for example, as shown in FIG. The holders 6 may be arranged in an upright arrangement, and the holders 6 can be provided at any position between the rotating rollers 5 as long as the mounting strength of the entire sub-spar 3 is obtained.

In the present invention, the rotation roller 5
Can be held in a state of protruding above the support 4 as shown in FIG. In this case, the cable W can be reliably placed in contact with the rotating roller 5.

Next, still another embodiment of the present invention is shown in FIG. In the figure, a holding member 6 is fitted from above a support member 4 having a substantially U-shaped cross section and a rotating roller 5 passes through a through hole 6 a of the holding member 6. It is held through the body 7. The support 4 has a pair of vertical plates 4f erected at both ends of a flat plate 4e.
A pair of screw mounting portions 4a are provided at both ends of the lower surface of the flat plate 4e, and locking projections 4g are formed on both outer surfaces of the vertical plate 4f. The holding body 6 is made of a plate material, and a pair of elastic pieces 6d that elastically expand outward are provided on both outer sides. A locking claw 6e that locks with the locking projection 4g is formed.

Also in the case of this embodiment, the holding member 6 is pressed down from above the supporting member 4 as it is to
After the elastic piece 6d is pressed by the locking projection 4g of the support 4 and elastically expands outward, the locking claw 6e of the holder 6 is locked to the locking projection 4g of the locking body 4. And fitted. Therefore, similarly to the above-described embodiment in which the holding member 6 is fitted to the substantially semi-cylindrical supporting member 4, the holding member 6 is easily fitted to the supporting member 4 from above in a state where the holding member 6 cannot be pulled out. be able to.

By the way, the holding member 6 engages the engaging portion 6b elastically expanding outward with the flange 4d of the supporting member 4,
Alternatively, the retaining claws 6e are engaged with the retaining projections 4g of the support 4, and the holder 6 is fitted to the support 4 in a retaining state. The present invention is not limited to this, and any means may be used as long as the holding body 6 can be fitted to the support 4 from above in a retaining state.

In practicing the present invention, it is not necessary that all the rotating rollers 5 have the same length, and the length of each rotating roller 5 depends on the drawing state of the cable W and the like. They may be different.

Further, in each of the above embodiments, the sub-spar which constitutes the wiring / piping material receiver 1 is all constituted by the sub-spar 3 provided with the rotating roller 5 according to the present embodiment. A part or a substantial number of 3 may be replaced with a normal sub-girder having no rotating roller 5, and both may be used in combination.

In addition, in each of the above embodiments, the case where the cable W is drawn in is shown. However, the present invention is not limited to this case. Applied to

[0027]

As described above, the wiring and wiring according to the first aspect of the present invention are described above.
The child girder for the pipe material receiver is configured such that the holding body is fitted from above to a support that is provided between the parent girders of the wiring and pipe material receiver, and the plurality of holders are supported by the support. In addition, a plurality of rotating rollers are rotatably held by the holding body. Therefore, the placement strength of the sub-spar is higher than that of the conventional wire drawing roller. As a result, with a small number of attachments, the pull-in force of the wiring and piping material can be reduced, and the wire and piping material can be stably supported. As a result, the cost of the wiring and piping material receiving device can be reduced. In particular, since the holding body is fitted in a retaining state from above, the rotating roller can be mounted very easily and the child girder can be assembled. The body and the rotating roller can also be assembled from above.

According to a second aspect of the present invention, there is provided a child girder for receiving a wiring and piping material, wherein the supporting member has a supporting portion which is opened upward, and the holding member is formed of the supporting member. Is fitted into the support section from the opening of the support section. Therefore,
In particular, since the holder is fitted in the support portion of the support, the holder can be protected from external impact. Further, according to the third and fifth aspects of the present invention,
The child girder for the pipe material receiver is described in claim 1 or claim 2.
Are elastically engaged with the support. I
Therefore, in particular, the holding body is supported with one hand as it is.
It can be installed very easily by simply pushing it into the body
Wear. And the wiring and piping material receiving device according to the invention of claim 6 is provided.
The child girder for the tool is in any one of claims 1 to 5.
The rotating roller and the holding body described above form a shaft body in each through hole.
It is inserted and integrally accommodated in the support and attached.
You. Therefore, especially, the rotating roller and the holding body are integrally formed.
The space inside the support as it is from the opening above the support
It is extremely easy to assemble to the support by simply pushing it in between
Can be opened.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a child girder for receiving a wiring and piping material according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of FIG.

FIG. 3 is a longitudinal sectional view showing a child girder for receiving a wiring and piping material according to another embodiment of the present invention.

FIG. 4 is a longitudinal sectional view showing a child girder for receiving a wiring and piping material according to still another embodiment of the present invention.

FIG. 5 is a side view showing a mounting position of a rotating roller according to still another embodiment of the present invention.

FIG. 6 is a side view showing a child girder for receiving a wiring and piping material according to still another embodiment of the present invention.

FIG. 7 is a perspective view showing a conventional wiring and piping material receiver.

FIG. 8 is a front view of a main part showing a drawing roller of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wiring / pipe receiving member 2 Main girder 3 Child girder 4 Support 4b Support 4d Flange 4g Lock projection 5 Rotary roller 6 Holder 6b Lock 6e Lock claw 7 Shaft

Claims (6)

(57) [Claims] A support that is provided between the parent girders of the wiring and piping material receiver; a plurality of rotating rollers that are disposed on the support and reduce a drawing force of the wiring and piping material; And a plurality of holders that are rotatably held from above and that rotatably hold the rotary roller. 2. The apparatus according to claim 1, wherein the support has a support portion that opens upward, and the holder is fitted into the support portion from above from the opening of the support so as not to be pulled out from above.
The child girder for the wiring and piping material receiver according to claim 1 . 3. The holder is elastically engaged with the support.
3. The method according to claim 1 or 2,
Sub-girder for receiving wiring and piping material. 4. The holder is housed inside the support.
3. The method of claim 1, wherein
3. The sub-girder for a wiring and piping material receiver according to any one of 3. 5. The holder is provided at an opening above the support.
2. The lock according to claim 1, wherein the lock is made with a protruding flange.
The wiring / piping material receiving device according to any one of claims 4 to 4.
Child digits for 6. The rotating roller and the holding member each have a through hole.
Insert the shaft into the through-hole and integrally house and mount in the support
6. The electronic device according to claim 1, wherein
The sub-girder for a wiring and piping material receiver according to claim 1.