JPS6243131Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a protective cap used to protect a harness wired inside an automobile from the protruding end of a screw member.

Prior Art When wiring a harness inside an automobile, depending on the wiring location, the end of a screw member fixed to a panel often inadvertently protrudes toward the wiring side of the harness. For this reason, there have been many cases in which the harness comes into contact with the protruding end of the screw member due to vibrations during running and is broken.

Therefore, in the past, a cap nut was screwed onto the protruding end of the screw member to prevent the protruding end of the screw member from coming into direct contact with the harness, but the cap nut is expensive to manufacture. Not only were they expensive, but because they were made of metal, the weight increased when used in large numbers, which went against the desire to reduce the weight of car bodies, and they also had drawbacks such as having to prepare several types depending on the diameter of the screw member. .

Purpose and Structure The present invention was devised in view of the drawbacks of such a cap nut, and the main body is molded into a bowl shape from a synthetic resin material, and the interior center of the bowl-shaped body is formed with a protruding screw member. In addition to forming an end insertion cavity, a plurality of thick guide walls whose tips face the insertion cavity and thin recessed walls are alternately formed radially on the inner surface of the bowl-shaped main body, and the radius of the main body is It is an object of the present invention to effectively solve the above-mentioned drawbacks by providing a protective cap in which the length of the cutting wall in the direction is set to be longer than the length of the guide wall.

Embodiment Hereinafter, the present invention will be described in detail based on an embodiment illustrating the present invention.As shown in FIGS. The inner center of the bowl-shaped main body 1 is formed into a hollow space 2 for inserting the protruding end of the screw member, and
A plurality of thick guide walls 3 and thin recessed walls 4 whose tips face the insertion cavity 2 are alternately formed radially on the inner surface of the bowl-shaped main body 1, and a plurality of recessed walls in the radial direction of the main body 1 are formed. 4 is set to be longer than the length of the guide wall 3.

Furthermore, tapered portions 3a and 4a are formed on the opening sides of the tips of each of the guide walls 3 and the biting walls 4 facing the insertion space 2 to enlarge the diameter of the insertion space 2, respectively.

Furthermore, an insertion groove 5 into which the tip of a screwdriver is inserted is formed on the upper side of the bowl-shaped main body 1.

Therefore, the protective cap with such a configuration can be attached to the screw member 6.
When fitting into the protruding end 6a of the cap body 1, simply insert the protruding end 6a of the screw member 6 fixed to the panel P straight into the insertion cavity 2 of the cap body 1 as shown in FIG. 2A. To explain this in more detail, in the initial stage, the protruding end 6a of the screw member 6 is guided by the tapered parts 3a and 4a of the guide wall 3 and the biting wall 4. After being inserted into the insertion cavity 2, the protruding end 6a of the screw member 6 is guided by the tip of the thick guide wall 3 until the opening of the bowl-shaped main body 1 comes into contact with the panel P surface. It is inserted straight.

During this insertion process, each biting wall 4, which is longer and thinner than the guide wall 3, bites into the thread of the screw member 6 while bending as shown in FIG. 4, the protective cap itself is securely fitted onto the protruding end 6a of the screw member 6.

As a result, the protruding end 6a of the screw member 6 does not come into direct contact with the harness at all. Also, when removing the protective cap to be fitted from the protruding end 6a of the screw member 6, the bowl-shaped main body is removed as shown in FIG. When the tip of the screwdriver 7 is inserted into the insertion groove 5 formed on the upper end surface of the screwdriver 7 and the bowl-shaped main body 1 is rotated, the biting state of each biting wall 4 against the screw thread is alleviated, and it can be easily removed. It becomes possible to remove it.

Effects As described above, in the present invention, the main body is molded into a bowl shape from a synthetic resin material, and the interior center of the bowl-shaped main body is made into a cavity for inserting the protruding end of the screw member, and the inner surface of the bowl-shaped main body is Since the protective cap is provided with a plurality of thick guide walls and thin recessed walls alternately formed in a radial manner, the tip of which faces the insertion cavity, the protruding end of the screw member can be attached to the protruding end of the screw member with an extremely simple operation. Not only can it be fitted and fixed to protect the harness from the protruding end of the screw member, but it is also cheaper to manufacture than conventional cap nuts, and because it is entirely made of synthetic resin, it can be used in large numbers. However, there is no need to worry about adding weight.

Furthermore, thick guide walls whose tips face the insertion cavity and thin recessed walls are alternately formed radially on the inner surface of the bowl-shaped main body of the present invention, and the length of the recessed walls in the radial direction of the main body is In a configuration where the length dimension is set to be longer than the length dimension of the guide wall, even if there is a dimensional error, the dimensional error can be compensated for by the dimension of the long cut-in wall and the short guide wall. It can be easily absorbed by the difference, and
If the dimensional difference between the long biting wall and the short guide wall is set as large as possible, it can be used for screw members with different diameters.

[Brief explanation of the drawing]

FIG. 1A is a perspective view of the protective cap according to the present invention seen from the bottom side, FIG. 1B is a perspective view of the protective cap seen from the top side,
FIG. 2C is a sectional view, FIG. A
FIG. 3 is a side view showing a state in which the protective cap according to the present invention is removed from the protruding end of the screw member. DESCRIPTION OF SYMBOLS 1... Bowl-shaped main body, 2... Hollow space for inserting the protruding end of the screw member, 3... Guide wall, 4... Biting wall, 6...
...Screw member, 6a...Protruding end.

Claims (1)

[Scope of utility model registration request] The main body is molded into a bowl shape from a synthetic resin material, and the interior center of the bowl-shaped main body is made into a cavity for inserting the protruding end of the screw member, and the tip is formed on the inner surface of the bowl-shaped body into the insertion cavity. A plurality of facing thick-walled guide walls and thin-walled cut-in walls are formed alternately in a radial pattern, and the length of the cut-in walls in the radial direction of the main body is set to be longer than the length of the guide walls. A protective cap characterized by: