JPH07101246A - Resin mold type door checker - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the occurrence of abnormal noise during sliding in a resin mold type door checker. [Structure] A pair of shoes 30 housed in a case 26 are in contact with the sliding portion 14 of the check arm 11 of the resin mold type door checker 10.
Are pressed against the sliding portion 14 side of the check arm 11 by the urging force of the rubber damper 32. The shoe 30 is formed of a polyacetal resin in which a high molecular polymer having lubricity is dispersed into spherical fine particles of about 1 micrometer by the microcapsule technique.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin mold type door checker used for doors of vehicles such as automobiles.

[0002]

2. Description of the Related Art Conventionally, a resin mold type door checker used for a door of a vehicle such as an automobile is composed of a check arm and a door checker. No. 82073.

As shown in FIG. 4, this door checker 7
At 0, the check arm 74 swingably attached to the vehicle body 72 side is held by the case 78 fixed to the door 76 side. Further, as shown in FIG. 5, the check arm 74 is provided in the case 78 in which the check arm 74 slides.
A pair of shoes 80 supporting both surfaces 74A, 74B of the
A pair of rubber bodies 82 for urging the shoes 80 in opposite directions are provided so as to give a moderation to the opening angle of the door 76.

[0004]

However, in this resin mold type door checker, the pair of shoes 80 is
Made of polyacetal impregnated with 1-5% of molybdenum disulfide, and has good wear resistance, but the shoe 8
If 0 wears, the wear debris is generated by the check arm 7.
At the time of sliding due to clogging in the grain marks marked with 4, the shoe 80 vibrates in a stick-slip manner and produces an abnormal noise.

In order to improve this, the check arm 7
It is conceivable to apply a lubricant such as mineral oil grease to the sliding surface between the No. 4 and the shoe 80, but the oil runs out with time and abnormal noise is generated.

In consideration of the above facts, an object of the present invention is to obtain a resin mold type door checker capable of reducing the generation of abnormal noise during sliding.

[0007]

According to a first aspect of the present invention, there is provided a resin mold type door checker which comprises a pair of sliding members made of a resin mold for supporting both sides of a check arm in a case in which the check arm slides. A resin mold type door checker, in which a child and a pair of biasing means for biasing these sliders in opposite directions are housed, wherein the resin mold is made into fine particles of a high molecular polymer having lubricity. It is characterized by being a dispersed polyacetal resin.

[0008]

In the resin mold type door checker according to the present invention as set forth in claim 1, when the check arm and the pair of sliders slide along with the opening and closing of the door, they are dispersed in the polyacetal resin forming the sliders. A high molecular polymer having lubricity from fine particles acts as a lubricant oozing out on the sliding surface between the check arm and the pair of sliders. Therefore, the frictional resistance between the check arm and the pair of sliders is reduced, and the generation of abnormal noise during sliding can be reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the resin mold type door checker of the present invention will be described with reference to FIGS.

In the figure, an arrow FR indicates a front direction of the vehicle body, an arrow UP indicates an upward direction of the vehicle body, and an arrow IN indicates an inner side in the vehicle width direction.

As shown in FIG. 1, the check arm 11 of the resin mold type door checker 10 includes a metal long plate-like insert 12 and a resin slide made of nylon or the like at the longitudinal middle portion of the insert 12. The moving part 14 is integrally molded.

One end 12A of one side of the insert 12 is swingably supported by a pin 15 (not shown) on a pillar of the vehicle body. The other end 12B of the insert 12 penetrates the metal bracket 16 and the rubber 18 fixed to the bracket 16 and is on the opposite side of the rubber 18 of the bracket 16.
A pin 20 is provided at the tip of the pin to prevent it from coming off.

The sliding portion 14 of the check arm 11 is attached to the sliding portion 14 along the longitudinal direction from the end 12A side of the insert 12.
Thick ridges 14A and 14B are formed at some places. Between the peaks 14A and 14B, a thin first
14C is formed, and a thin second valley 14D is formed on the rubber 18 side of the mountain 14B, so that the opening angle of the door is moderated.

On the other hand, on the inner panel of the door (not shown), a case 26 is welded to an upper flange 26A and a lower flange 26B of the case 26 by a weld bolt 28.
And a nut (not shown).

The central portion of the case 26 in the vertical direction is a rectangular box-shaped accommodating portion 26C. A rectangular through hole 29 is formed in the center of the bottom of the accommodation portion 26C, and the check arm 11 is inserted therethrough. A shoe 30 as a pair of sliders sandwiching the sliding portion 14 of the check arm 11 and a rubber damper 32 as a pair of biasing means sandwiching the shoes 30 are accommodated in the accommodating portion 26C. The pair of shoes 30 are pressed against the sliding portion 14 side of the check arm 11 by the urging force of the rubber damper 32.

The housing portion 26C of the case 26 is closed by a case cover 34 so that the shoe 30 and the rubber damper 32 do not pop out. It should be noted that, in the case cover 34, at a portion facing the through hole 29,
A rectangular through hole 36 through which the check arm 11 is inserted is formed, and through holes 38 through which the weld bolts 28 of the case 26 are inserted are formed in the upper end vicinity 34A and the lower end vicinity 34B, respectively. There is.

As shown in FIG. 2, the shoe 30 is a polyacetal resin in which a high molecular polymer 40 having lubricity is dispersed in spherical fine particles of about 1 micrometer by the microcapsule technique. In this embodiment, Delrin is used. It is formed of DE12014 (trade name: DuPont).

Next, the operation of this embodiment will be described. In the resin mold type door checker 10 of this embodiment, the sliding portion 14 of the check arm 11 and the shoe 30 slide as the door is opened and closed, as shown in FIG. At this time, as shown in FIG. 2, the pair of shoes 30 are pressed against the sliding portion 14 by the urging force of the pair of rubber dampers 32 (arrow F in FIG. 2). Therefore, when the sliding portion 14 of the check arm 11 and the shoe 30 slide, the high molecular polymer 40 having lubricity from the fine particles dispersed in the Delrin DE 12014 forming the shoe 30 causes the sliding portion 14 of the check arm 11 to move. The sliding surface between the shoe 30 and the shoe 30 acts as a seeping lubricant. Therefore, the frictional resistance between the sliding portion 14 of the check arm 11 and the shoe 30 is reduced, and the generation of noise during sliding can be reduced.

Further, in this embodiment, from the fine particles on the sliding surface of the shoe 30, a high-molecular polymer 40 having an appropriate amount of lubricity is constantly provided on the sliding surface of the sliding portion 14 of the check arm 11 and the shoe 30. Since it acts as a lubricant,
Unlike the conventional case, it is not necessary to apply mineral oil grease regularly, and maintenance is easy.

[0020]

According to the resin mold type door checker of the present invention, a pair of sliders made of resin mold for supporting both sides of the check arm and a pair of these sliders are provided in a case where the check arm slides. A pair of urging means for urging in opposite directions, and a resin mold type door checker that accommodates a pair of urging means, wherein the resin mold is a polyacetal resin in which a high molecular polymer having lubricity is dispersed in fine particles. It has an excellent effect that it is possible to reduce the generation of abnormal noise during movement.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a resin mold type door checker according to an embodiment of the present invention, as seen from the rear diagonal inside of a vehicle body.

FIG. 2 is a side sectional view showing a main part of a resin mold type door checker according to an embodiment of the present invention.

FIG. 3 is a perspective view of a main part of a resin-molded door checker according to an embodiment of the present invention, viewed from the diagonally inner rear side of the vehicle body.

FIG. 4 is a plan sectional view of a resin mold type door checker according to a conventional example.

5 is a sectional view taken along line 5-5 of FIG.

[Explanation of symbols]

 10 Resin Mold Type Door Checker 11 Check Arm 12 Insert 14 Sliding Part 26 Case 30 Shoe (Slider) 32 Rubber Damper (Biasing Means) 40 High Polymer

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Junji Okumura 2-1, Asahi-cho, Kariya city, Aichi Aisin Seiki Co., Ltd.

Claims (1)

[Claims] 1. A case in which a check arm slides,
A resin mold type door checker that accommodates a pair of sliders made of a resin mold that supports both sides of a check arm, and a pair of biasing means that biases these sliders in opposite directions. A resin mold type door checker, wherein the resin mold is a polyacetal resin in which a high molecular polymer having lubricity is dispersed in fine particles.