JPH0342579Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention uses tubes, cables,
This invention relates to improvements in grommets used to penetrate hoses, etc.

(Prior art) Conventionally, when a pipe D such as a pipe, cable, or hose is fixed through a plate-like object such as a frame A, the mounting hole E of the frame A etc. and the pipe D such as the pipe are in direct contact. Insert a rubber grommet E into the mounting hole to prevent
, and further provide a clip F on, for example, the cross member C near the mounting hole.
A method of fixing the tube body D is used. B is a bracket, and clip F cannot be attached to frame A or bracket B.

However, the above method requires two steps of piercing and fixing, which not only increases the number of working parts and labor, but also requires the use of clips near the mounting holes for fixing the tube. The disadvantage is that it requires space and is subject to restrictions on piping design.

(Problem to be solved by the invention) Therefore, in order to improve the above-mentioned drawbacks of the conventional grommet, it was proposed to increase the thickness of the grommet to support the tube that passes through it without a clip, but this also It is difficult to insert the grommet into the frame, and if the slit in the center hole of the grommet into which the tube body is inserted is made larger, the tube body may not be able to be fixed, so it is difficult to insert the grommet into the frame. Although it is easy to install, there is a risk that it may come off.

This idea is a further improvement on the above proposal, and allows for both penetration and fixing in one process.
The aim is to perform two tasks at the same time, saving labor and removing restrictions on piping design.

(Means for solving the problem) A semicircular thick part is formed leaving the outer periphery on one side,
Two plates are provided with a U-shaped slit having a width equal to the outer diameter of the through tube extending from the center to the thin wall part, and the thick wall part of one side and the thin wall part of the other side face each other and are engaged by sandwiching the mounting hole of the combination frame, etc. It is something that stops.

(Function) With the above structure, the plate body through which the pipe body is inserted through the slit is fitted from the front and back sides of the frame mounting hole, and the thick part is inserted into the mounting hole to lock them together and the installation process is carried out. and fixing the tube body can be done in one operation, which saves labor and eliminates the need to provide a fixing device such as a clip outside the grommet device to prevent contact between the tube body and the frame. , it is possible to remove restrictions on piping design.

(Example) This invention will be further explained with reference to an example shown in the drawings. 1 is a thin part of the plate body, 2 is a U-shaped slit, the width of which is equal to the diameter of the tube 9 passing through it, extending from the center of the thin part 1 to the circumference, and 3 is a thick part. , on the opposite side of the thin-walled portion 1 where the U-shaped slit 2 is provided, protrudes from the center of the thin-walled portion 1 in a substantially semicircular shape leaving an outer peripheral edge, and the portion of the thin-walled portion 1 that overlaps with the tip portion of the U-shaped slit 2 is a pipe. A hole 4 is formed through which the tube of the body 9 passes. 5 is a locking protrusion,
A pair of U-shaped slits are provided, protruding from the thick wall portion 3 to the width of the U-shaped slit, and a detent 6 is provided to engage the inside of the U-shaped slit 2 of the other plate 7, so that the plates 7, 7 are mutually connected. Lock and fix. Reference numeral 8 denotes a plate-like object such as a frame, which has a mounting hole 10 into which a plate 7 forming a grommet is inserted from the front and back. Note that the grommet device can be constructed of synthetic resin.

In this way, with the tube 9 to be fixed inserted into the U-shaped slit 2 of one plate 7, the tube 9 is passed through the mounting hole 10 of the plate 8, and then The U-shaped slit 2 of the other plate 7 is located in the opposite direction to the U-shaped slit 2 of the one plate 7, and the mounting hole 10 of the tube 9 is inserted into the U-shaped slit 2. Insert the penetrating tip side,
Each of the combined grommet devices has one mounting hole.
0, engage the thick part 3 of each plate 7 onto the thin part 1 of the other, and engage the locking protrusion 5 of each plate 7 inside the U-shaped slit 2 of the opposing plate 7. and is locked by the detent 6.

(Effects of the invention) Since this invention is constructed as described above, the U-shaped slit makes it easy to insert the tubular body into the mounting hole for the grommet, and the locking protrusion ensures the fitting. Moreover, it has excellent effects such as eliminating the need for contact prevention using clips or the like, saving labor and improving restrictions on piping design.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the pair of plates of the grommet device of this invention, Fig. 2 shows the pair of plates combined, Fig. 3 is a front view, and Fig.
The figure shows the conventional grommet installation state. 1... Thin wall part, 2... U-shaped slit, 3...
Thick wall portion, 4... Through hole, 5... Locking protrusion, 6...
Detent, 7...Plate body, 8...Plate-shaped object, 9...Pipe body, 10...Mounting hole.

Claims (1)

[Scope of utility model registration request] A set of plates each having an approximately semicircular thick walled part leaving the outer periphery on one side, and a U-shaped slit with a width equal to the outer diameter of the pipe passing through it, extending from the center to the thin walled part. A grommet device in which a thick part and another thin part are engaged so as to face each other.