JPH0340036Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The invention is a method for fixing flexible wire members such as power cords so that they do not move relative to each other when they are inserted into a pipe. It concerns a fixation device.

[Prior Art] For example, a reflector as shown in FIG. 2 is often used when taking photographs or movies. This reflector has a parasol-like reflective sheet 1 that can be opened and closed to reflect light from a light source 2, and the reflected light is irradiated onto the subject through a differential user screen 3. A light source 2 is attached, and a power cord 5 connected to the light source 2 is inserted into the pipe 4 and connected to a power source.

However, if the power cord 5 is not fixed to the pipe 4, the power cord 5 moves relative to the pipe 4, which not only makes it troublesome to handle, but also causes the power cord 5 to hit the pipe 4. There is a problem in that the parts are likely to wear out, and furthermore, when a force in a tensile direction is applied to the power cord 5, that force acts directly on the part connected to the socket and is likely to break.

Therefore, it is desirable to fix the power cord to the pipe by some means, but if the power cord is sufficiently thinner than the inner diameter of the pipe, it can be fixed relatively easily by various means. However, if the power cord has a thickness comparable to the inner diameter of the pipe, it is very difficult to fix it.

[Problem to be solved by the invention] The problem of the invention is that when fixing a flexible linear member such as the above-mentioned power cord to a pipe, the linear member has a thickness comparable to the inner diameter of the pipe. An object of the present invention is to provide a fixing device that can easily and reliably fix the fixing device even when the device has the following.

[Means for Solving the Problems] In order to solve the above problems, the photography lighting device of the present invention wraps a ring around the part of the flexible linear member inserted through the pipe that leads out from the pipe. A locking protrusion is formed by covering the ring with a flexible tube, and the locking protrusion is locked to a stopper attached to the pipe. It is.

[Operation] The linear member is fixed to and released from the pipe by attaching and detaching the fastener to the pipe.

Even if an external force is applied to the linear member when the linear member is fixed, the ring is firmly held by the flexible tube, so that the ring will not be displaced.

In addition, since the above-mentioned locking protrusion is formed by attaching a flexible tube to the top of the ring, its structure is very simple, and it can be easily attached to a ready-made linear member. can be formed into

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 is an enlarged view of the main parts of the reflector shown in FIG. 2, when a power cord is fixed to the end of the pipe.
1 indicates a power cord inserted into the pipe 10.

A ring 12 made of metal, synthetic resin, rubber, etc. is wrapped around the power cord 11 leading out from the pipe 10, and a flexible tube 13 made of rubber, synthetic resin, etc. is wrapped around the ring 12. By tightly fitting the power cord 11
A locking protrusion 14 that protrudes annularly is formed on the outer periphery of the
The locking protrusion 14 is locked to a stopper 15 screwed onto the pipe 10. In this case, the locking protrusion 14 does not necessarily need to be held between the stopper 15 and the end of the pipe 10, and the locking protrusion 14 may be spaced apart from the end of the pipe 10.

One half of the flexible tube 13 is led out through the stopper 15 with the locking protrusion 14 as a boundary, and this led-out portion is connected to the power cord 1.
The other half of the flexible tube 13 may or may not be inserted into the pipe 10.

The flexible tube 13 can be easily and reliably attached by using a known heat-shrinkable tube, fitting it into a predetermined position of the power cord 11, and heat-shrinking it. At that time, the flexible tube 13 is attached to the power cord 11 with adhesive.
It is preferable to attach it to

In the fixing device having the above configuration, the pipe 1
The power cord 11 is fixed to and released from the pipe 10 by screwing the stopper 15 off the pipe 10.

When fixing the power cord 11, the locking protrusion 1
4 is locked to the stopper 15, but this locking protrusion 14
is formed by attaching the flexible tube 13 over the ring 12, so even if an external force is applied to the power cord 11, the ring 12 is firmly held by the flexible tube 13. , there is no possibility of misalignment or the like.

Furthermore, when the power cord 11 is bent, it is guided and guarded by the flexible tube 13, so that it does not bend excessively and cause cracks, or wear due to sliding contact with the stopper 15. There is no.

Note that the above-mentioned fixing device is not only applicable to fixing a pipe and a power cord in a reflector as shown in Fig. 2, but also to fixing a pipe in any equipment or device and a flexible cable inserted therein. Needless to say, it can be applied to fixation with a linear member.

[Effects of the invention] According to the fixing device of the invention having the above configuration,
A locking protrusion is formed on the flexible linear member by a ring and a flexible tube, and the locking protrusion is used to fix the linear member to the pipe with the fastener. Even if the linear member has a thickness comparable to the inner diameter of the pipe, it can be securely fixed with a simple configuration.

In addition, the locking protrusion can be formed by wrapping a ring around a linear member and attaching a flexible tube to the ring, so the structure is very simple and can be formed by wrapping a ring around a linear member and attaching a flexible tube to the ring. It can also be easily formed on a linear member.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of essential parts showing an embodiment of the present invention;
FIG. 2 is a sectional view showing an example of an object to which the present invention is applied. 10... Pipe, 11... Flexible linear member, 1
2...Ring, 13...Flexible tube, 14...
...Latching protrusion, 15...Lock fitting.

Claims (1)

[Scope of utility model registration request] A locking protrusion is formed by winding a ring around the part of the flexible linear member inserted through the pipe that leads out from the pipe and covering the flexible tube over the ring. A device for fixing a flexible linear member to a pipe, characterized in that the locking protrusion is locked to a stopper attached to the pipe.