JP2000294064A - Mounting dimension adjustment member - Google Patents

Abstract

The present invention relates to a mounting dimension adjusting member used for a mounting portion of a switch for a brake lamp of an automobile, and relates to a rotation angle and a rotating force when a bearing portion of the switch is mounted on and removed from a holding member. Provide things that do not need to be considered more than necessary. SOLUTION: A partial inner peripheral thread portion 12E of a retaining hole 12D of a retaining member 12 and a partial outer peripheral thread portion 15A of a bearing portion 15 are provided.
The rotation stop portion which comes into contact after the rotation of the bearing portion 15 for meshing with the protrusion 12H is formed by the protrusion 12H of the holding hole 12D of the holding member 12.
And the end surface 15D of the partial outer threaded portion 15A of the bearing portion 15, and when the rotational force due to the above-described rotation is applied, the rotation stopping portions 17 rotate so that the contact portions 17 slide in the direction of biting each other. By inclining both abutting surfaces constituting the stopper, the stopper strength at the time of rotation is increased, and the rotation angle and the rotation force when attaching and detaching the bearing 15 to and from the holding member 12 are more than necessary. What does not need to be considered can be provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting size adjusting member used for a mounting portion of a brake lamp switch mounted on a pedal portion of an automobile.

[0002]

2. Description of the Related Art A conventional mounting dimension adjusting member will be described with reference to FIGS. 5 to 8 by taking a mounting portion of a brake lamp switch mounted on a pedal portion of an automobile as an example.

FIG. 5 is a partial cross-sectional side view of a mounting dimension adjusting member used for a switch mounted on a pedal portion of an automobile, and FIG. 6 is an exploded perspective view of a conventional mounting dimension adjusting member.

In FIG. 1, reference numeral 1 denotes a pedal portion of an automobile including a mounting plate 3 described below, and a substantially cylindrical holding member 2 made of resin is inserted into a mounting hole 3 A of the mounting plate 3. It is engaged and fixed by the elastic projection 2C.

[0005] Reference numeral 4 denotes a substantially circular holding hole 2 of the holding member 2.
D is a switch having a bearing part 5 as a resin shaft member which can be inserted and removed in D. The bearing part 5 of the switch 4 is held as shown in FIG. 7 which is a cross-sectional view taken along line XX of FIG. By inserting it into the hole 2D and rotating it by a predetermined angle at a position where a predetermined mounting dimension is obtained, the holding hole 2
As shown in the sectional view of FIG. 8, the partial inner peripheral threaded portion 2E and the partial outer peripheral threaded portion 5A having a predetermined width provided at corresponding positions of the outer periphery of the bearing 5 and the outer periphery of the bearing portion 5, respectively. At the same time, the projection 5B on the outer periphery of the bearing portion 5 is attached by pushing and expanding the wall of the holding hole 2D of the holding member 2 and fitting into the recess 2F on the inner periphery.

[0006] One side of the concave portion 2F on the inner periphery of the holding hole 2D and the convex portion 5B on the outer periphery of the bearing portion 5 are large contact surfaces 2G and 5C for preventing rotation after the rotation. .

The holding member 2 is formed by joining a pair of members 2A and 2B of a substantially semi-cylindrical shape having the same shape so as to be joined at a plane passing through the center thereof to form a substantially circular holding hole 2D. The partial inner peripheral threaded portion 2E and the concave portion 2F are arranged at two locations symmetrical with respect to the center.

The switch 4 is connected to a brake pedal 6
Is turned off in a normal state where the user does not step on, and turned on when the step is stepped on.

When it is necessary to adjust the operating position of the switch 4 in relation to the pedal of the automobile,
By rotating the bearing 5 in the direction opposite to the direction at the time of mounting,
The convex portion 5B of the bearing portion 5 is made to escape from the concave portion 2F of the holding member 2, and the partial inner peripheral thread portion 2E and the partial outer peripheral thread portion 5A are disengaged from each other. It was re-attached to the proper mounting dimensions.

[0010]

However, in the above-mentioned conventional mounting dimension adjusting member, the bearing portion 5 is rotated in a predetermined direction at a position where a predetermined mounting dimension is obtained, and the partial inner peripheral thread portion 2E and the partial outer peripheral portion are rotated. When engaging the threaded portion 5A,
When the force for rotating the bearing 5 is too large, or when the switch 4 engaged / fixed to the holding member 2 is removed, and the bearing 5 is rotated with a strong force by mistake, When a large force is applied to the contact surfaces 2G and 5C as stoppers on the side of the concave portion 2F on the inner periphery of the holding hole 2D of the holding member 2 and the convex portion 5B on the outer periphery of the bearing portion 5, the cylinder of the resin holding member 2 The convex wall portion is pushed out and the convex portion 5B comes out of the concave portion 2F, and the tip of the partial outer peripheral thread portion 5A of the bearing portion 5 is strongly pressed against the cylindrical wall portion of the holding member 2 and collapsed. In some cases, the holding member 2 and the bearing portion 5 cannot be reused, that is, since there is no margin in the stopper strength, the bearing portion 5 of the switch 4 is attached to the holding member 2.
At the time of removal, there is a problem that it is necessary to prevent the switch 4 from being rotated more than necessary and not to apply a large rotational force.

The present invention solves such a conventional problem, and increases the strength of a stopper at the time of rotation when attaching or detaching a shaft member such as a bearing of a switch to or from a holding member. It is an object of the present invention to provide a mounting dimension adjusting member which does not need to consider the rotation angle and the rotation force more than necessary.

[0012]

In order to solve the above-mentioned problems, the mounting dimension adjusting member according to the present invention comprises a partly inner threaded portion on the inner periphery of the holding hole of the holding member and a partly outer threaded portion on the outer periphery of the shaft member. The rotation stopper, which is brought into contact after the rotation of the shaft member for engaging the portion, is formed between the projection on the inner periphery of the holding hole of the holding member and the end surface of the partially outer threaded portion of the shaft member, and When the rotational force is applied, both abutment surfaces constituting the detent portion are inclined so that the abutment portions of the detent portion slide in the direction of biting each other.

As a result, the strength of the stopper at the time of rotation is increased, and the mounting dimension adjusting member which does not need to be considered more than necessary for the rotation angle and the rotating force when the shaft member is mounted on or removed from the holding member. Obtainable.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An invention according to a first aspect of the present invention is a resin-made substantially cylindrical holding member fixed to a mounting plate, and is detachably inserted into a substantially circular holding hole of the holding member. Having a partial outer peripheral threaded portion that meshes with a partial inner peripheral threaded portion in the holding hole of the holding member by being rotated in a predetermined direction with a predetermined insertion dimension, and Is a mounting dimension adjusting member composed of a resin shaft member having a projection on the outer periphery that fits into the recess of the holding member. It is formed between the end faces of the partial outer threaded portions, and when a rotational force is applied by the rotation in the direction of meshing the partial threaded portions, the contact portions of the rotation stoppers slide in the direction of biting each other. , Both abutment surfaces constituting the detent portion are located at the center of the shaft member. This is a mounting dimension adjusting member that is inclined with respect to the shaft, and is used for both the rotation stopping portion formed between the projection on the inner periphery of the holding hole of the holding member and the end face of the partially outer threaded portion of the shaft member. The contact surface is inclined in the direction in which the contact portions bite each other when a large rotational force is applied in the direction of meshing the partial threaded portions, that is, in the direction in which the contact area increases, so the rotation stop portion is deformed. To obtain a mounting dimension adjusting member that can increase the strength of the stopper until it is damaged and does not need to consider more than necessary about the rotation angle and torque when attaching and removing the shaft member to and from the holding member. It has the effect of being able to.

According to a second aspect of the present invention, in the first aspect of the present invention, the holding member includes two substantially semi-cylindrical members made of resin which are point-symmetric with respect to the center of the substantially circular holding hole. It is formed by joining at the plane passing through the axis, and the inner thread part, the concave part and the projection in the holding hole of the holding member are provided at two places symmetrical with respect to the center respectively. The partially outer threaded portion and the convex portion of the shaft member are also provided at two locations symmetrical with respect to the center, respectively, and a resin having a partially inner threaded portion and a projection in a substantially circular holding hole is provided. The holding member can be easily formed by splitting the holding member into two members and molding them by resin, and joining the two members. When rotational force due to rotation of the shaft member is applied to the contact surface, The power of the contact surface direction abutting portion bites each other, that is, the direction of the force acts to attract two projections, an effect that does not hold member is divided into easy two members.

A mounting dimension adjusting member according to an embodiment of the present invention will be described below with reference to the drawings, taking an example of a mounting portion of a brake lamp switch mounted on a pedal portion of an automobile as in the prior art. Will be explained.

FIG. 1 is a perspective view of a mounting dimension adjusting member used as a mounting dimension adjusting member according to an embodiment of the present invention, which is used in a switch mounted on a pedal portion of an automobile, and FIG. 2 is an exploded perspective view of the same. In the figure, reference numeral 12 denotes a substantially cylindrical holding member, and a pair of substantially semi-cylindrical resin-shaped members 12A and 12B having the same shape are joined at a surface passing through the center thereof to form a substantially circular holding hole 12D. And mounting hole 1 of mounting plate 13
It is the same as that of the prior art that it is inserted into 3A and is engaged and fixed by the elastic projection 12C.

Reference numeral 14 denotes a switch having a bearing portion 15 as a resin-made shaft member which can be inserted into and removed from the substantially circular holding hole 12D of the holding member 12, and the bearing portion 15 of the switch 14 is changed to Y in FIG. As shown in FIG. 3 which is a cross-sectional view taken along the line Y, the holding hole 12D of the holding member 12 and the bearing are inserted into the holding hole 12D and rotated by a predetermined angle at a position where a predetermined mounting dimension is obtained. Partial inner peripheral threaded portion 12E provided at a corresponding position on the outer periphery of portion 15
As shown in the cross-sectional view of FIG. 4, the outer peripheral threaded portion 15A meshes with a predetermined mounting dimension position and the bearing portion 15A.
It is the same as in the case of the related art that the outer peripheral convex portion 15B pushes the wall portion of the holding hole 12D of the holding member 12 so as to fit and fit into the inner peripheral concave portion 12F.

However, the inner peripheral portion of the holding hole 12D of the holding member 12 has the same inner peripheral threaded portion as the two inner threaded portions 12E and the concave portions 12F symmetrical with respect to the center. Two protrusions 12H are provided on the side of 12E.

The projecting portion 12H allows the bearing portion 15 to
2D, is rotated at a predetermined mounting dimension position, and engages the partial outer peripheral threaded portion 15A of the outer periphery of the bearing portion 15 with the partial inner peripheral threaded portion 12E of the holding hole 12D of the holding member 12, and then engages the partial outer peripheral portion. The end face 15D of the threaded portion 15A comes into contact with the
It constitutes a rotation stopper.

The projection 12 as a rotation stopper is provided.
H of the end surface 12I and the end surface 15D of the partial outer threaded portion 15A
As shown in the enlarged cross-sectional view of the contact portion 17 in FIG. 4, the contact portion 17 of (a) when the end face 12I and the end face 15D contact with each other by a flat portion, and (b) the tip of the end face 12I has an end face 15D.
In the case of contact with the flat portion, there are three cases in which (c) the tip of the end surface 15D contacts the flat portion of the end surface 12I. In any case, the two flat portions forming the contact portion 17 are considered. Is a contact portion 17 and a bearing portion 15 which is a shaft member.
Tilted with respect to the center line connecting the centers.

That is, in the case of FIG.
The plane part of I and the plane part of the end face 15D are inclined at the same angle,
In the case of (b), the plane portion of the end surface 12I is further inclined in this direction than the plane portion of the end surface 15D, and in the case of (c), the plane portion of the end surface 15D is further in this direction than the plane portion of the end surface 12I. , So that the partial threaded portions 12E and 1E
The contact portions 17 are inclined so as to slide in a direction in which the contact portions 17 bite each other, that is, in a direction in which the area of the contact portion 17 increases, when a rotational force due to the rotation in the direction of meshing the 5A is applied.

By doing so, the contact portion 17 of the rotation stopper becomes difficult to come off, and the strength of the stopper until the contact portion 17 or its periphery is deformed and damaged can be increased. Compared to the case where the contact surface of the contact portion 17 is in the direction along the center line of the bearing portion 15, 2
The stopper strength can be increased to nearly double.

Also, by inclining the contact surface of the contact portion 17 of the rotation stopper in this manner, a force acts in a direction to draw the two substantially semi-cylindrical members 12A and 12B forming the holding member 12. Therefore, the holding member 12 has two members 1
The possibility of division into 2A and 12B is reduced.

[0025]

As described above, according to the present invention, the rotation of the shaft member for meshing the partially inner threaded portion on the inner periphery of the holding hole of the holding member with the partially outer threaded portion on the outer periphery of the shaft member is achieved. The rotation stop portion which comes into contact after the movement is formed between the projection on the inner periphery of the holding hole of the holding member and the end surface of the partially outer threaded portion of the shaft member. The two contact surfaces constituting the rotation stop portion are inclined so that the contact portions of the portions slide in the direction of biting each other, so that the strength of the stopper at the time of rotation increases and when the shaft member is attached to the holding member. An advantageous effect is obtained that it is not necessary to consider more than necessary about the rotation angle and the rotation force at the time of removal.

[Brief description of the drawings]

FIG. 1 is a perspective view of a mounting dimension adjusting member used for a switch mounted on a pedal portion of an automobile as a mounting dimension adjusting member according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a sectional view showing a state where the shaft member is inserted along a line YY in FIG. 1;

FIG. 4 is an enlarged cross-sectional view showing the contact surface between the shaft member and the rotation stopping portion of the holding member taken along the line YY in FIG. 1;

FIG. 5 is a side view of a partial cross section of a mounting dimension adjusting member used for a switch mounted on a pedal portion of an automobile.

FIG. 6 is an exploded perspective view of a conventional mounting dimension adjusting member.

FIG. 7 is a sectional view showing a state where the shaft member is inserted along the line XX in FIG. 5;

FIG. 8 is a cross-sectional view showing a mounting state of the shaft member along line XX in FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Holding member 12A, 12B Member 12C Elastic projection 12D Holding hole 12E Partial inner peripheral threaded part 12F Concave part 12H Projection 12I End face 13 Mounting plate 13A Mounting hole 14 Switch 15 Bearing part 15A Partial external threaded part 15B Convex part 15D End face 17 Contact part

Claims (2)

[Claims] 1. A substantially cylindrical holding member made of resin fixed to a mounting plate, and removably inserted into a substantially circular holding hole of the holding member and rotated in a predetermined direction with a predetermined insertion dimension. A resin resin having a partial outer peripheral threaded portion that meshes with a partial inner peripheral threaded portion in the holding hole of the holding member, and having a convex portion on the outer periphery that fits into the concave portion of the retaining hole inner periphery by the rotation. A rotation stopping portion that abuts after the rotation is formed between a protrusion on the inner periphery of the holding hole of the holding member and an end surface of the partially outer threaded portion of the shaft member; When a rotational force is applied by the rotation in the direction in which the partial threaded portions mesh with each other, the two contact surfaces constituting the rotation stop portion are pivoted so that the contact portions of the rotation stop portion slide in the direction of biting each other. A mounting dimension adjusting member that is inclined with respect to the center line of the member. 2. The holding member is formed by joining two substantially semi-cylindrical members made of resin that are point-symmetric with respect to the center of a substantially circular holding hole on a plane passing through a center axis. In the holding hole of the holding member, a partially inner threaded portion, a concave portion, and a projection are respectively provided at two positions symmetrical with respect to the center, and correspondingly, a partially outer threaded portion and a convex portion of the shaft member are also provided. The mounting dimension adjusting member according to claim 1, wherein the mounting dimension adjusting member is provided at two locations symmetrical with respect to the center.