JP4478988B2 - Cable support for suspension bolts - Google Patents

Description

  The present invention relates to a suspension bolt cable support used for wiring in a double ceiling of an office building or a tenant building, for example, and relates to a suspension bolt cable support capable of handling various cables.

  Vinyl insulated vinyl sheathed cables (VV cables) are often used for low-voltage indoor wiring in double ceilings such as office buildings and tenant buildings. In recent years, a very large number of weak current wires such as LAN cables have been wired as information cables.

  There are two types of VV cables, flat type (VVF) and 2 to 4-core round type (VVR), and they are constructed using different types of support according to the cable used.

  Patent Document 1 describes a cable support that supports a round (VVR) cable. This support is provided to lock a round (VVR) cable of 2 to 4 cores, large, small and different diameters.

In addition, as described in Patent Document 1, a method of fixing a support bolt to a suspension bolt is a type in which a connecting portion of a support tool is forcibly pushed and both side surfaces of the suspension bolt are sandwiched, and Patent Document 2 There is a type in which the suspension bolt is wrapped around from the periphery by a connecting part that can be freely opened and closed, such as the cable support described in.
Japanese Utility Model Publication No. 53-49026 Utility Model Registration No. 2524211

  In the support device described in Patent Document 1, it is possible to support a round (VVR) cable, but it is not possible to lock a flat (VVF) cable having a different cable shape, and is compatible with a flat (VVF) cable. Another support is used. In addition, weak current wires such as LAN cables currently have no appropriate support tools and are constructed using other support tools, causing problems such as the cable side surfaces being pressed and damped. .

  On the other hand, in the connection structure of the conventional support device connected to the suspension bolt, when an excessive load or a load in a certain direction is applied to the connection portion such as when the cable is locked or when the cable is tensioned, There was an inconvenience that would easily come off.

  For example, as described in Patent Document 1, in the type in which the connecting portion is forcibly pushed in and the suspension bolt is sandwiched, when the tension is generated in the cable or an excessive load is applied from above, the sandwiching portion expands. There was a risk that it would come off easily. Therefore, there is a means to increase the clamping strength by attaching a metal fitting to the suspension bolt clamping part of this connecting part and making the clamping part difficult to spread, but in this case, a strong force is required when pushing the metal fitting into the hanging bolt. Is required. That is, when fixing the clamping part with a metal fitting to the suspension bolt P, it becomes a troublesome work of holding the suspension bolt with one hand and forcibly pushing the support with the other hand.

  Further, as described in Patent Document 2, in the type in which the suspension bolt is wrapped from the periphery with a connecting part that can be freely opened and closed, the cable is supported after the closed connecting part is fixed after being wrapped. However, the fixing strength of the closed connecting portion is weak, and the cable supporting force is generally weak, such as the closed connecting portion is easily opened when an excessive load is applied.

  Furthermore, in order to obtain a connection portion with high connection strength, conventionally, a pair of locking pieces for locking up and down the suspension bolt is provided, and the connection portion of the support is rotated to lock the suspension bolt on the locking piece. There is also a means. However, in this case, when a rotational force in the direction opposite to the locking direction is applied to the connecting portion of the support tool, the support tool may easily come off.

  Therefore, the present invention has been created to solve the above-described problems, and can lock a round (VVR) cable or a flat (VVF) cable, and can also support a weak current wire such as a LAN cable. In addition, it is an object of the present invention to provide a cable support for a suspension bolt that has a very high connection strength to the suspension bolt.

In order to achieve the above-mentioned object, the first means in the present invention is that the connecting body 20 connected to the suspension bolt P from the side surface direction of the suspension bolt P and the support body 10 having an open top are integrally formed. In the suspension bolt cable support that supports the cable Q in a substantially horizontal state from above, the support body 10 is a bolt contact portion 11 that contacts the longitudinal side surface of the suspension bolt P. And a hook portion 12 having a substantially side surface projecting from the side surface opposite to the side surface provided with the connecting body 20 in the bolt contact portion 11, and the inside of the hook portion 12 inside the support body 10 . An elastic protrusion 13 extending vertically downward from the upper end of the flange is provided, and the elastic protrusion 13 is brought into contact with the side surface of the cable Q inside the support 10.

  According to the first aspect of the present invention, the elastic protrusion 13 is provided inside the support 10 and the elastic protrusion 13 is brought into contact with the side surface of the cable Q inside the support 10, so that a round (VVR) cable or a flat shape is provided. (VVF) Cables can be locked, and weak current wires such as LAN cables can be supported in a normal state.

  Further, by providing one or a plurality of hook portions 12 for locking the cable Q on the opposite side surface of the bolt contact portion 11 opposite to the side surface on which the connecting body 20 is provided, a plurality of hook portions 12 can be provided. Even in the case of a single piece, the cable Q can be supported on the same side surface of the bolt contact portion 11. Therefore, it is not necessary to support the cable Q on both sides with the suspension bolt P interposed therebetween, and the workability is improved even when there are a plurality of hook portions 12 as in the case of a single hook portion 12.

  Furthermore, the elastic protrusion 13 for crimping the cable Q is provided vertically downward from the inner upper end of the hook portion 12, and in particular, the elastic protrusion 13 is in contact with and supported by the side surface of a weak current wire such as a LAN cable. Therefore, it can support, avoiding the attenuation | damping by compression. Further, even when a round (VVR) cable or a flat (VVF) cable is locked, the elastic protrusion 13 can be stably supported by deformation.

  As described above, according to the present invention, not only can a round (VVR) cable and a flat (VVF) cable be locked, but also a weak current wire such as a LAN cable can be supported, and the connection strength to the suspension bolt can be increased. It has various beneficial effects such as being able to maintain a high and stable coupling force.

  The best mode of the system of the present invention is a substantially belt-like bolt abutting portion 11 that contacts the suspension bolt P, and a hook portion that is formed on the side surface of the bolt abutting portion 11 and that locks the cable Q. 12 constitutes the support 10. The elastic protrusion 13 is provided vertically downward from the inner upper end of the hook portion 12, and the elastic protrusion 13 is brought into contact with the side surface of the cable Q inside the support 10. A pair of holding pieces 21 that extend substantially horizontally from the vertical position of the bolt contact portion 11 and hold the opposing side surfaces of the suspension bolt P at the vertical position are provided. The suspension bolts P are provided so as to be sandwiched between the respective holding pieces 21 from the gaps between the tip portions of the holding pieces 21 and the bolt contact portions 11. By providing the disengagement prevention piece 22 that comes into contact with the side opposite to the side of the suspension bolt P that the upper holding piece 21 holds from the bolt contact portion 11 that is located further above the upper holding piece 21. To achieve this goal.

  An embodiment of the present invention will be described below. The basic configuration of the support of the present invention includes a support 10 that supports the cable Q and a connecting body 20 that is connected to the suspension bolt P, and these are integrally formed of a synthetic resin material (FIG. 1). reference).

  The support body 10 is a member that locks the cable Q in a substantially horizontal state inside the support body 10 from the opened upper part. The support 10 further has a bolt contact portion 11, a hook portion 12, and an elastic protrusion 13 (see FIG. 1).

  The bolt abutting portion 11 is a portion that abuts along the longitudinal side surface of the suspension bolt P, and the illustrated bolt abutting portion 11 is formed in a strip shape (see FIG. 1). The hook portion 12 is a substantially bowl-shaped member protruding from the side surface of the bolt contact portion 11, and supports a substantially horizontal cable Q inside the hook portion 12 (FIG. 4). To FIG. 6). The hook portion 12 is provided on the opposite side of the side surface of the bolt contact portion 11 where the connecting body 20 is provided. The illustrated hook portion 12 includes a locking portion 12A that is bent and extended in a substantially J-shaped side surface so that an upper portion opened from the lower end of the bolt contact portion 11 is narrowed, and a locking portion that is extended from the end portion of the locking portion 12A. It is comprised with the introduction part 12B bent and extended to the outside so that the cable Q can be easily introduced into the part 12A (see FIG. 2). Further, a reinforcing rib 12C that increases the strength of the locking portion 12A is provided on the longitudinal outer surface of the locking portion 12A (see FIG. 3).

  The elastic protrusion 13 is a member protruding inside the hook portion 12, has a substantially strip shape in the illustrated example, is provided so that the distal end portion 13 </ b> A is separated from the inside of the hook portion 12, and is formed at the base end portion. The bulging part 13B which raises the connection strength of these is provided (refer FIG. 2). The elastic protruding piece 13 shown in FIGS. 4 to 6 extends from the upper end of the hook portion 12 vertically downward, and is located between the tip portion 13A of the elastic protruding piece 13 and the inner surface of the hook portion 12. In addition, a gap is provided for sandwiching a weak current wire such as a LAN cable (see FIG. 6). That is, the distal end portion 13A of the elastic protrusion 13 is set to an optimal position for locking the side surface of the weak current wire.

  Further, in the illustrated example, a plurality of locking projections 14 are provided on the side of the cable Q locking hook of each bolt contact portion 11 and hook portion 12, and the cable Q locked inside the support body 10 is the support body. 10 is prevented from coming out of the opening (see FIGS. 4 to 6). Therefore, each of the locking projections 14 is provided so as to be inclined obliquely downward or protrude substantially horizontally. By making these locking projections 14 and the tip end portion 13A of the elastic protruding piece 13 contact the side surface of the cable Q in a dot shape, the locking force of the cable Q can be increased, and deformation of the cable Q can be prevented as much as possible. it can. Therefore, in the embodiment, a plurality of locking projections 14 are provided in accordance with the diameter and type of the cable Q.

  The connecting body 20 is a member that is connected to the suspension bolt P from the side surface direction of the suspension bolt P. This connection body 20 is provided in the said bolt contact part 11, and is comprised by the upper-lower pair of holding piece 21 and the separation | staining prevention piece 22 (refer FIG. 1).

  The holding pieces 21 are a pair of members extended substantially horizontally from the vertical position of the bolt contact portion 11 and hold the left and right side surfaces of the suspension bolt P in the vertical position (see FIG. 2). The illustrated holding piece 21 has a substantially plane J shape (see FIG. 3). In order to connect the holding piece 21 to the suspension bolt P, the holding body 20 is turned sideways, the suspension bolt P is inserted between the holding pieces 21 and the connection body 20 is rotated, thereby holding the holding piece 21. The suspension bolts P are held in 21 (see FIG. 2).

  On the other hand, the disengagement prevention piece 22 is a member extended from the bolt contact portion 11 positioned further above the upper holding piece 21 (see FIG. 2). The disengagement prevention piece 22 prevents the connecting body 20 from rotating in the direction of disengagement by contacting the side surface of the suspension bolt P. Therefore, the position at which the disengagement prevention piece 22 is provided is set to a position that abuts on the side surface opposite to the side surface of the suspension bolt P held by the upper holding piece 21 (see FIG. 3). The length of the detachment prevention piece 22 shown in the drawing that extends from the bolt contact portion 11 decreases toward the bottom (see FIG. 2). This is such that when the coupling body 20 is rotated and the holding piece 21 is held by the holding bolt P, the disengagement prevention piece 22 can also be locked to the side surface of the hanging bolt P. Further, the horizontal length of the disengagement prevention piece 22 is at least the length from the bolt contact portion 11 to the radial position of the suspension bolt P, thereby preventing the connection body 20 from rotating. Yes (see FIGS. 2 and 3).

  The present invention is not limited to the illustrated example, and dimensions, shapes, etc., of the respective components such as the bolt contact portion 11, the hook portion 12, the elastic protrusion 13, or the holding piece 21, the detachment prevention piece 22 and the like. The design change and the material change can be arbitrarily performed, and can be freely changed without departing from the scope of the present invention.

It is a perspective view which shows one Example of this invention. It is a side view which shows the connection state of this invention coupling body. It is a top view which shows one Example of this invention. It is a side view which shows the state which latched the flat cable to this invention support body. It is a side view which shows the state which latched the round cable to this invention support body. It is a side view which shows the state which latched the LAN cable to this invention support body. It is a perspective view which shows the other Example of this invention.

Explanation of symbols

P Hanging bolt Q Cable 10 Support body 11 Bolt contact portion 12 Hook portion 12A Locking portion 12B Introducing portion 12C Reinforcement rib 13 Elastic protrusion 13A Tip portion 13B Swelling portion 14 Locking protrusion 20 Linkage 21 Holding piece 22 Detachment Prevention piece

Claims (1)

For a suspension bolt that is integrally formed with a connection body that is connected to the suspension bolt from the side of the suspension bolt and a support body that is open at the top, and that supports the cable in a substantially horizontal state from above. In the cable support, the support includes a bolt contact portion that contacts the longitudinal side surface of the suspension bolt, and a side surface that protrudes from the side surface of the bolt contact portion opposite to the side surface provided with the connecting body. consists substantially hook shape of the hook portion, an elastic protrusion which extends vertically downward from Kanagawa upper end of inside the hook portion of the support, the elastic protrusion on the cable side of the support body portion A cable support for a suspension bolt, characterized by being brought into contact.

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