JPS63250079A - Cable clamp - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Technical Field) This invention relates to a cable clamp that prevents external force from being applied to the connection part of electric wires to connecting devices [Background Art] With the increase in power wiring, information wiring, etc. It has a double structure and wiring is installed in the space between.

FIG. 7 shows an example of such a double floor (referred to as a "raised floor"). As shown in Figure 7, the wiring bag Wl for floor outlets etc. is 2M.
It is attached to one of the upper floor panels 20 of the structure. A plurality of types of connection devices 3 and 4, such as electrical outlets, are attached to this wiring device 1.

As shown in FIG. 8, a plurality of types of electric wires 5.6 are each connected to a connecting device 3.4. Electric wires 5 and 6 are 1
They are combined into one cable 7. The cable 7 is held down by a cable clamp 18 to a connecting device mounting bracket 9. This cable clamp 1B has an intermediate portion 23 bent in an arc shape, and screw fastening portions 22 and 22 at both ends.
It is equipped with Apply the cable 7 to the recessed side of the cable clamp intermediate part 23, and tighten the clamp screw 1.0.
．． 10 and press the screwed parts 22 and 22 against the fitting 9 by the number of connecting devices. This fixes the cable 7 and prevents external force from being applied to the connection portion (not shown) of the electric wires 5 and 6.

However, with such a cable clamp 18, if the thickness or cross-sectional shape of the cable or other wire is different, the wire may not be able to be held down by the intermediate portion 23, or the wire may not enter inside the intermediate portion 23. , the wires cannot be fixed. Since there are multiple types of electric wires, there is a problem in that in order to secure different types of electric wires, it is necessary to replace the cable clamp with one suitable for each type of electric wire.

[Purpose of the invention]

In view of the following two points, it is an object of the present invention to provide a cable clamp capable of fixing a plurality of types of electric wires with one type.

[Disclosure of the Invention] In order to achieve the above object, the present invention provides a locking portion that locks to a member to which a connecting device is fixed, and a locking portion that locks to the member with a screw. and a concavity toward the member between the locking part and the screw stopper when the locking part is locked and the screw stopper is screwed. The cable clamp also has a recessed intermediate portion, and the intermediate portion is configured to sandwich and fix the electric wire between the member and the member from the inside,
The locking portion is formed with a plurality of protrusions that protrude outward in the width direction from both sides and are shifted in the length direction, and by selecting the protrusions to be locked, it is possible to change the type of electric wire to be clamped. The gist of this invention is a cable clamp that is characterized by being designed to

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments thereof and the drawings.

FIG. 1 shows an embodiment of the cable clamp according to the present invention. As shown in FIG.
It has 3. This cable clamp 8 is formed by punching a single metal plate into a desired shape and bending it, and has a generally L-shape as seen in FIGS. 4 and 5. The locking part 11 is formed at the tip of one side of the L-shape, and the screwing part 12 is formed at the other side. As shown in FIGS. 4 and 5, the intermediate portion 1
3, in a state in which the locking part 11 is locked to the connecting device mounting bracket 9 and the screw locking part 12 is screwed,
It is recessed by being bent toward the connecting device mounting bracket 9 between the locking part 11 and the screwing part 12. As shown in FIG. 3, the locking portion 11 is formed with two protrusions 11a and Ilb that protrude outward in the width direction from both sides. The protruding portion 11a and the protruding portion 11b are arranged to be shifted in the length direction.

The cable clamp 8 is, for example, a connecting device mounting bracket 9
On the other hand, the locking portion 11 is locked, and the locking portion 12 is locked with the clamp set screw 10. The connecting device mounting bracket 9 is formed with a tapped hole 14 into which the clamp set screw 10 is screwed, and an insertion hole 15 into which the locking part 11 is inserted at a position corresponding to the locking part 11. There is.

This insertion hole 15 is located at the protrusion 11a of the cable clamp 8.
, 112 questions and 1], b, has a width C slightly larger than the width between 1.1b, and a length larger than the thickness of the locking part 11. A locking piece 16.16 is formed in a portion of the insertion hole 15 near the screw hole 14, and a portion of the locking portion 11 without a protruding portion (for example, the protruding portion 11a and the protruding portion),
1b and the groove or locking portion 11
The width a is slightly larger than the width a of the protruding portion 11a (a portion closer to the intermediate portion 13 than the protruding portion 11a), and the width a of the protruding portion 112
, Ilb is formed with a locking hole 17 having a width d smaller than the width between the holes 1 and 1b.

Insert the locking portion 11 of the cable clamp 8 into the insertion hole 15 to the desired position, and insert the portion without a protrusion (for example, the groove between the protrusion 11a and the protrusion 11b or the portion of the locking portion 11 1. Slide the cable clamp 8 toward the screw hole 14 so that the locking piece 16°16 fits into the portion closer to the intermediate portion 13 than the protruding portion 1.1a. As a result, the protrusion 112.11a or the protrusion 11b, ], 1b is locked by the locking piece 16.16, so that it cannot be pulled out. The protrusions 11a and Ila are locked to the locking pieces 16.16, or
Alternatively, the protrusions 11b, 11. b to locking piece 16.16
Whether or not to lock the electric wire can be appropriately selected depending on the thickness, shape, etc. of the electric wire to be fixed. For example, as shown in FIG. 4, if the electric wire to be fixed is a flat cable 24, the locking part 11 is deeply inserted into the insertion hole 15, and the protruding part 1
．． 1a, 11a may be locked to the locking pieces 16.16. Alternatively, as shown in FIG. 5, if the electric wire to be fixed is a thick cable 25, the locking portion 11 is shallowly inserted into the insertion hole 15, and the protruding portion 11b,]]b is connected to the locking piece 1.6. 1
6 should be locked. As shown in FIGS. 2 and 3, the electric wire is placed inside the concave portion of the cable clamp intermediate portion 13, and the screw 10 is inserted into the screw hole 14 through the screw stopper portion 12. The part 13 pinches the wire with the connecting device mounting bracket 9 from the inside.
Fix it in place. In this way, even if an external force is applied to the electric wire, the external force will not reach from the fixed part to the connection part side.

Since the cable clamp according to the present invention can change the locking position depending on the shape, thickness, etc. of the electric wire to be fixed, it is possible to fix a plurality of types of electric wires with one type. Therefore, by using the cable clamp according to the present invention, even if the wires to be fixed have different outer diameters and shapes, it is only necessary to lock and fix the wires at positions corresponding to each wire.
No need to replace cable clamps every time.

The cable clamp according to the present invention is used, for example, in a wiring device attached to a floor panel that constitutes the upper floor of a double floor. An example of such a wiring device is shown in FIG. Figure 6 shows its cross section. As shown in FIGS. 6 and 7, in this wiring device 1, a box 32 is fitted into an opening provided in a floor panel 2 constituting a mounting surface 31, and a box 32 is fitted into an opening provided on the top surface of the box. is covered with a lid (cover) 33, and a connecting device 3.4 such as an outlet is arranged inside the box 32. The lid 33 is opened at its center, and this opening 3
A door 36 is attached to 4 via a hinge mechanism 35. When installing the door 36, if a notch is formed on the opposite edge to draw out the floor wiring (for example, a cord, etc.), the wiring device 1 can be used with the door 36 closed. This may impair the aesthetic appearance or impede walking, and it also prevents dust and dirt from entering the box during use.Since the lid 33 is larger than the mounting surface opening, this mounting surface opening The finish around the area is good, and the box 32 is supported by the lid 33 to prevent it from falling under the floor panel 2. Connected appliances such as plugs (not shown) are attached to the lid 33. 33 and connected to the connecting device 3.4.

In this wiring device 1, since the connection between the connected appliance and the connecting appliance is made within the hook 32, the connected appliance is not exposed on the floor surface. Therefore, the beauty of the room is not spoiled, and it does not interfere with walking.

As shown in FIGS. 2 and 6, electric wires 5 and 6 routed under the floor panel 2 are connected to a connecting device 3.4. These electric wires 5 and 6 are wired as one cable 7, and are fixed by a cable clamp 8 according to the present invention at a portion in front of the connection part (not shown) with the connection devices 3 and 4. This prevents external force from being applied to the wiring section. In particular, with double-layered floors, the position of wiring devices and floor panels are often moved in response to changes in the interior pattern, etc., and at that time, external force is applied to the electric wires under the floor panels. Cheap. Conventionally, it was necessary to prepare various cable clamps depending on the type of electric wire, but with the cable clamp according to the present invention, one
It can be handled by type. This wiring device is equipped with 3 or 4 connecting devices, but it has 1 or 2 connecting devices, or 5 (flit or more).
It's okay to be ignored.

The cable clamp according to the present invention is not only used for wiring devices as described above, but can also be used for other devices such as wiring devices attached to a wall surface or the like. Further, the cable clamp according to the present invention is not limited to the above embodiment. For example, the shape is not limited to L-shape,
The material is not limited to metal either. The concaveness of the middle part of the cable clamp need not be by bending, but may be done in other ways. Three or more protruding parts of the locking part of the cable clamp may be formed as long as they are shifted in the length direction. In the above description, the member to which the connecting device is fixed is a connecting device mounting metal fitting, but it may be another member, such as a connecting device body, and may not be a metal fitting. The wire to be fixed must be without jacket, or
It may also be an insulated wire or cable with an outer sheath. The connection device may be used not only for power wiring such as an outlet, but also for information wiring, and its type is not limited.

In Figures 1 to 8, the same numbers and symbols refer to the same parts.

〔Effect of the invention〕

As described above, in the cable clamp according to the present invention, a plurality of protrusions protruding outward in the width direction from both sides are formed on the locking part, shifted in the length direction, and the protrusion to be locked is selected. This makes it possible to change the type of electric wire to be clamped, so multiple types of electric wires can be fixed with one type.

[Brief explanation of drawings]

FIG. 1 is a perspective view of one embodiment of the cable clamp of the present invention, and FIG. 2 is a perspective view of one example of its use.
Figure 3 corresponds to a partial view of the A arrow, and Figure 4 corresponds to a view of the B arrow. 6 is a cross-sectional view showing the installed state of a wiring device using a cable clamp according to one embodiment, FIG. 7 is a perspective view thereof, and FIG. 8 is a perspective view showing a conventional example. 3.4... Connection equipment 5, 6... Electric wire 7, 24° 25... Cable 8... Cable clamp 9.
... Connecting device mounting bracket, which is a member fixed to the connecting device 11... Locking part 11a, llb... Projecting part 12... Screwing part 13... Intermediate agent, patent attorney Takehiko Matsumoto Figure 1 Figure 2 Figure 8 Figure 3 +1 Figure 4\ 7-～-1a +lL -+ 0 +1"'-1" Figure 5

Claims (1)

[Claims] (1) The connecting device has a locking part that locks to a member to which it is fixed, and a screw stopper that screws to the member, and the locking part is locked and the screw is screwed. In a state in which the stopper is screwed, there is also an intermediate portion that is recessed toward the member between the locking portion and the screw stopper, and this intermediate portion is connected to the member from the inside. The cable clamp is configured to clamp and fix an electric wire between the locking portions, and the locking portion has a plurality of protruding portions protruding outward in the width direction from both sides and being offset in the length direction. A cable clamp characterized in that the type of electric wire to be clamped can be changed by selecting the protrusion to be clamped.