JPS5817103Y2 - Door check that prevents squeaking noise - Google Patents

Description

[Detailed description of the invention] This invention relates to a door check that regulates the opening angle position of the door in stages, and its purpose is to:
To provide a door check which is capable of smoothly opening and closing a door by improving an arm which is a main component of the door check and preventing abnormal sliding noise, that is, squeaking sound, without impairing the feeling of moderation.

That is, in conventional door checks, the structure between the guide member and the arm is such that the entire length of the guide member contacts the arm surface, or a ball is built into the guide device and the ball is brought into contact with the arm surface. It has a structure.

However, the former has a structure in which the contact area of the guide member with the arm is large, and when the contact pressure is high, it is easy to generate an abnormal sound called a squeaking sound that occurs when objects rub against each other.
Also, there is the problem that abnormal noises are generated when fine particles attached to the arm surface due to the intrusion of dust and dirt are dragged by the sliding of the guide member, and in the latter case, balls are used. It was difficult to adjust the sense of moderation in response to abnormal noises, and there was also a problem in durability due to severe wear at the contact portion of the arm with the ball.

The present invention aims to solve these problems and prevent the generation of abnormal noise while maintaining the balance between the conflicting functions of smooth operability and a clear sense of moderation required for door checks. It is.

The configuration will be explained with reference to FIGS. 1 and 2.

Door checks can be broadly classified into guide devices and arms, and are used by inserting an arm having a corrugated surface into the guide device, and attaching the guide device to the door side and the arm to the body side.

Reference numeral 1 denotes an arm made of iron-based material having a corrugated surface, the surface of which is subjected to shot blasting A.

Shot blasting is also called sandblasting or shot peening, and is a method of creating fine irregularities on the metal surface.

The guide device includes a base plate 8 having a housing portion for accommodating a pair of guide members 4 and 5 opposed to each other by upper and lower cushioning materials 6 and 7, a cover 3 serving as a lid for the base plate 8, and a center of the cover. The seal 2 is adhesively fixed to the section, the cushioning materials 6 and 7 mentioned above, and the guide member 4 made of hard resin such as nylon or ABS.
, 5, and the arm 1 is inserted between the guide members 4 and 5 through the window of the guide device, as shown in FIG.

As the material of the guide member, hard resins such as nylon and ABS are used as described above, but it is of course also possible to use so-called oil-impregnated resins specially impregnated with oil.

The guide device is fixed to the door through attachment holes 13 and 14, and the arm 1 is rotatably attached to the podium side through the attachment hole 12.

A pin 11 is implanted at the end of the arm 1 opposite to the mounting hole 12, and a cushion 9 and a plate 10 are interposed between the pin 11 and the guide device to regulate the full opening angle of the door. ing.

Next, the function of the door check according to the present invention when installed in a car will be explained.

When the door is closed, the guide device is on the arm attachment hole 12 side.

As the door is opened, the guide device moves on the arm together with the door, and reaches the corrugated tube portion (the first convex portion).

At this point, when further force is applied to the door, the guide members 4 and 5 built in the guide device are moved by the cushioning material 6, respectively.
, 7, and moves upward and downward, finally climbing over the convex part and positioning itself in the concave part.

(Half-open position) If you apply further force, the guide device will pass over the next protrusion and come into contact with the cushioning material 9, and the door will open fully (Full-open position) What is important at this time is that from when you start opening the door, to when it is half-open. The sense of moderation from the half-open point to the full-open point must be clear, the operability must be smooth, and there should be no abnormal noise.

In the door check according to the present invention, the surface of the arm is shot blasted, so that the guide members 4 and 5 contact the arm 1 only on the convex portion of the arm surface.
Contact area decreases.

Further, fine particles such as dust and dirt adhering to the arm surface enter the recesses on the arm surface and are not dragged along the surface of the arm 1 by the guide member 4.degree.5, thereby preventing the generation of abnormal noise.

It goes without saying that consideration for operability and moderation can be made by adjusting the degree of shot blasting.

In this way, by applying shot blasting to the arm, which is a very simple method, it is possible to prevent the occurrence of abnormal noise and to obtain a good feeling without impairing the sense of moderation.
Its effects are large and highly practical.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the door check according to the present invention. FIG. 2 is a sectional view of FIG. 1. 1...Arm, 2...Seal, 3...Cover, 4
...Guide member, 5...Guide member, 6...Cushion material, T...Cushion material, 8...Base plate, 9...Cushion, 10...Plate, 11
...pin, 12...mounting element L, 13...mounting hole,
14...Mounting hole, A...Shot blasting.

Claims (1)

[Scope of utility model registration request] A base plate having an accommodating portion for accommodating a -4 guide member that is biased in opposition by upper and lower cushion materials, a cover that is a lid of the base plate, and a guide member formed of the above-mentioned cushion material and hard synthetic resin. An arm made of iron-based material having a corrugated surface and a pin implanted at one end is inserted into each of the guide members through the window of the guide device, and the guide device and the pin implanted in the arm are inserted. In a door check in which a plate and a cushion are interposed in between to restrict the full opening angle of the door, shot blasting is applied to the surface of the arm to prevent abnormal noises generated when sliding with the guide member. A door check that prevents the characteristic squeak sound.