JP2023064683A - door checker - Google Patents

Abstract

To provide a door checker capable of restricting an occurrence of abnormal noise when an arm slides against a case or a deterioration in operation feeling.SOLUTION: A door checker 1 comprises: a case 4; an arm 2 slidable against the case 4; a shoe 6 capable of being in contact with an irregular part 23 of the arm 2; and an elastic member 7 energizing the shoe 6. The arm 2 has: a first surface S1 on which the irregular part 23 is provided; and a second surface S2 located opposite to the first surface S1. The shoe 6 and the elastic member 7 are arranged only at the first surface S1 side of the arm 2. The plurality of elastic members 7 are aligned in a vertical direction. The case 4 has a support surface 43 supporting the arm 2 when the second surface S2 of the arm 2 is brought into contact therewith. The second surface S2 has an inclined surface 24 inclined so as to come close to the shoe 6 from a center in the vertical direction to an end. The support surface 43 is provided corresponding to each inclined surface 24 and is inclined so as to come close to the shoe 6 from the center in the vertical direction to the end of the case 4.SELECTED DRAWING: Figure 7

Description

The present invention relates to a door checker for keeping the degree of opening of a door.

Conventionally, as a door checker, there is a case having a through hole, an arm that is slidable with respect to the case while being passed through the through hole, and an upper and lower pair that can contact a pair of concave and convex portions provided on the upper and lower surfaces of the arm. and an elastic body made of a pair of upper and lower rubbers for urging the shoe toward the uneven portion of the arm (Patent Document 1). Also known is a compression coil spring instead of rubber as the elastic body (Patent Document 2).

Japanese Patent Application Laid-Open No. 2021-038602 JP 2021-070979 A

By the way, in the conventional door checker, when the arm is slid relative to the case, the arm may be tilted relative to the case, which may cause abnormal noise or deteriorate the operational feeling.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a door checker that can suppress the generation of abnormal noise and the deterioration of operational feeling when an arm slides with respect to a case.

A door checker for achieving the above object comprises a case having a through hole, an arm that is slidable with respect to the case while being passed through the through hole, and an arm that is housed in the case and provided on the arm. and an elastic member housed in the case and biasing the shoe toward the arm, wherein the arm has a first surface provided with the uneven portion. and a second surface located opposite to the first surface, the shoe and the elastic member are arranged only on the first surface side of the arm, and a plurality of the elastic members are provided, and the The case is arranged side by side in an orthogonal direction perpendicular to both the sliding direction of the arm and the direction in which the arm and the shoe are arranged, and the case supports the arm when the second surface of the arm comes into contact with the support. and the second surface has inclined surfaces at both ends in the orthogonal direction that are inclined toward the side on which the shoe is arranged as it goes from the center to the end in the orthogonal direction, and the support A surface is provided corresponding to each of the inclined surfaces, and is characterized by being inclined so as to approach the side on which the shoe is arranged as it goes from the center of the case in the orthogonal direction to the end.

With such a configuration, the postures of the shoe and the arm can be stabilized by the plurality of elastic members arranged in the orthogonal direction, so that the arm can be prevented from tilting with respect to the case. In addition, since the arm, which is urged by the elastic member through the shoe, can be supported by the pair of support surfaces provided on the case, the posture of the arm can be further stabilized, and the arm can be moved relative to the case. tilting can be further suppressed. Furthermore, each inclined surface of the arm biased by the elastic member through the shoe contacts the corresponding inclined support surface to form a clearance between the arm and the inner surface of the case facing in the orthogonal direction. Therefore, it is possible to prevent the arm from contacting the inner surface of the case. As a result, it is possible to suppress the generation of abnormal noise and the deterioration of the operational feeling when the arm slides with respect to the case.

The first surface may be oriented horizontally.

According to this, foreign matter such as sand can be prevented from accumulating on the first surface as compared with the case where the first surface faces upward. As a result, wear of the first surface of the arm and the shoe, generation of abnormal noise, and deterioration of operational feeling when the arm slides with respect to the case can be suppressed.

The arm has an upper surface that connects the upper end of the first surface and the upper end of the second surface. It may be slanted so that it lies below.

According to this, foreign matter such as sand adhering to the upper surface of the arm can be dropped along the slope of the upper surface of the arm. As a result, it is possible to prevent foreign matter from accumulating on the upper surface of the arm.

One end of the arm in the sliding direction is swingably attached to one of a vehicle body and a door that can be opened and closed by swinging left and right with respect to the body. It may be fixed to the other side of the door, and the first surface may face the left-right direction when the door is closed.

According to this, the concave and convex portion of the arm can be pressed against the shoe by opening and closing the door. As a result, when the door is opened and closed, the urging force of the elastic member is also applied, and the concave and convex portion of the arm and the shoe can be brought into firm contact with each other. As a result, it is possible to suppress the occurrence of abnormal noise such as chattering when opening and closing the door.

The elastic member is, for example, a compression coil spring.

According to this, by means of a plurality of compression coil springs arranged in orthogonal directions, the shoe is directed toward the arm, and the arm is directed via the shoe toward the support surface of the case, and is attached substantially straight in the axial direction of the compression coil spring. can force. As a result, the posture of the shoe and arm can be stabilized.

The door checker may include an arm cover that covers the arm when the door is closed.

According to this, the arm cover can prevent foreign matter from accumulating on the arm.

Advantageous Effects of Invention According to the present invention, it is possible to suppress the generation of abnormal noise and deterioration of operational feeling when the arm slides with respect to the case.

1 is a perspective view of a door checker according to an embodiment; FIG. It is a top view of a door checker, the figure (a) which shows a state when a door is closed, and the figure (b) which shows a state when a door is open. It is the perspective view which looked at the arm from the 2nd surface side. FIG. 3 is a cross-sectional view taken along the line XX of FIG. 2; It is an exploded perspective view of a door checker. FIG. 4 is a cross-sectional view of the door checker showing a state in which the contact portion of the shoe is in contact with the convex portion of the uneven portion; FIG. 7 is a cross-sectional view taken along line YY of FIG. 6; FIG. 4 is a cross-sectional view of the door checker showing a state in which the contact portion of the shoe has entered the concave portion of the uneven portion; It is a perspective view of the door checker which concerns on a 1st modification. 4 is a cross-sectional view of an arm and an arm cover; FIG. It is a perspective view of the door checker which concerns on a 2nd modification.

Next, an embodiment of the door checker will be described in detail with reference to the drawings as appropriate.
As shown in FIGS. 1 and 2(a) and (b), the door checker 1 is a door checker for automobiles used in automobiles as an example of vehicles. The automobile has a body B and a door D that can be opened and closed by swinging left and right with respect to the body B. The door checker 1 is a device that holds a door D of an automobile at a predetermined opening degree or restricts it to a fully open position.

Here, in the present embodiment, front and rear, left and right, and up and down are based on the front and back, left and right, and up and down of the automobile, unless otherwise specified. Further, the case where the door checker 1 is applied to the left door D of an automobile will be illustrated and explained below. When the door checker 1 is applied to the right door D of an automobile, the front and rear directions are the same as when the door checker 1 is applied to the left door D, and the up and down and left and right directions are reversed.

A door checker 1 includes an arm 2 and a check unit 3.
The arm 2 is slidable in the sliding direction with respect to the check unit 3, and its front end, which is one end in the sliding direction, is attached to the body B of the automobile so as to be swingable. Specifically, the front end of the arm 2 is supported by the bracket 8 with a pin 81 so that the arm 2 can swing about the shaft 2A with respect to the bracket 8 . The bracket 8 is attached to the body B with a bolt (not shown) with the shaft 2A facing up and down, so that the arm 2 is attached to the body B so as to be able to swing left and right.

The arm 2 is an elongated member elongated in the sliding direction, and is passed through through holes 41A and 51A (see FIG. 5) provided in the case 4 and the cover 5 of the check unit 3, which will be described later. It is slidable in the sliding direction with respect to the cover 5 . The arm 2 is composed of, for example, a steel plate (not shown) and resin covering the steel plate. As shown in FIG. 3, a pin hole 21 into which a pin 81 is inserted is provided at one end of the arm 2 in the sliding direction. A stopper 22 for restricting the door D to the fully open position is provided at the other end of the arm 2 in the sliding direction.

As shown in FIG. 2(a), the arm 2 has a first surface S1 and a second surface S2 opposite to the first surface S1.

In this embodiment, the first surface S1 and the second surface S2 face the horizontal direction when the door checker 1 is attached to the automobile. Specifically, the first surface S1 and the second surface S2 face the left-right direction when the door D is closed. More specifically, the first surface S1 faces the left side (left and right outside of the automobile) when the door D is closed, and the second surface S2 faces the right side (left and right inside of the automobile) when the door D is closed. ).

An uneven portion 23 is provided on the first surface S1 to provide moderation when the door D is opened and closed. As an example, the concave-convex portion 23 includes a first convex portion 23A, a first concave portion 23B, a second convex portion 23C, a second convex portion 23C, a first concave portion 23A, a first concave portion 23B, a second It has a shape in which two concave portions 23D, a third convex portion 23E, and a third concave portion 23F are arranged in this order.

As shown in FIG. 3, the second surface S2 has a pair of upper and lower inclined surfaces 24. As shown in FIG. Here, in the present embodiment, the vertical direction corresponds to the "perpendicular direction" orthogonal to both the sliding direction of the arm 2 and the arrangement direction (see FIG. 4) in which the arm 2 and the shoe 6, which will be described later, are arranged.

As shown in FIG. 4, the inclined surfaces 24 are provided at both ends of the second surface S2 in the vertical direction. Each inclined surface 24 is inclined so as to approach the side on which the shoe 6 is arranged as it goes from the center in the vertical direction of the second surface S2 toward the end. Specifically, the upper inclined surface 24 is inclined so as to approach the left side where the shoe 6 is arranged as it goes upward from the center in the vertical direction, and the lower inclined surface 24 is inclined downward from the center in the vertical direction. It slopes toward the left side as it goes to.

The arm 2 further has an upper surface S3 that connects the upper end of the first surface S1 and the upper end of the second surface S2 (specifically, the upper inclined surface 24). The upper surface S3 is inclined downward from the upper end of the second surface S2 toward the upper end of the first surface S1. In other words, the upper surface S3 is inclined downward as it approaches the first surface S1.

As shown in FIGS. 4 and 5, the check unit 3 includes a case 4, a cover 5, a shoe 6, and an elastic member 7. As shown in FIGS. In the door checker 1, the shoe 6 and the elastic member 7 are arranged only on one side of the arm 2 in the arrangement direction in which the arm 2 and the shoe 6 are arranged. Specifically, the shoe 6 and the elastic member 7 are arranged only on the first surface S1 side of the arm 2 . That is, the door checker 1 has a structure in which the shoe and the elastic member are arranged on both sides of the arm so as to sandwich the arm as in the above-described prior art. It is a configuration to be arranged.

The case 4 is a box-shaped member with an opening on the other side in the sliding direction, and is made of, for example, a resin containing glass fiber. The case 4 has a base wall 41 located on one side in the sliding direction and a side wall 42 extending from the peripheral edge of the base wall 41 toward the other side in the sliding direction.

The base wall 41 has a through hole 41A through which the arm 2 is passed.
When the door checker 1 is attached to the automobile and the door D is closed, the side walls 42 are composed of a first side wall 42A positioned above, a second side wall 42B positioned below, and a third side wall 42C positioned on the right side. and a fourth side wall 42D located on the left side.

Further, as shown in FIG. 4, the case 4 has a pair of support surfaces 43 and a pair of stopper surfaces 44 inside.

The support surface 43 is a surface that supports the arm 2 when the inclined surface 24 provided on the second surface S2 of the arm 2 contacts. there is Each support surface 43 is inclined along the corresponding inclined surface 24 of the arm 2 . Specifically, each support surface 43 is inclined so as to approach the side on which the shoe 6 is arranged as it goes from the center in the vertical direction of the case 4 toward the end. Specifically, the upper support surface 43 is inclined so as to approach the left side as it goes upward from the center in the vertical direction, and the lower support surface 43 approaches the left side as it goes downward from the center in the vertical direction. It is slanted so that

The stopper surface 44 is a surface that regulates the position of the shoe 6 in the arrangement direction when a later-described regulation portion 63 of the shoe 6 comes into contact with the stopper surface 44 . ing. Each stopper surface 44 is provided as a plane substantially orthogonal to the arrangement direction. Each stopper surface 44 is provided at a position closer to the shoe 6 than the support surface 43 is.

As shown in FIG. 5, the cover 5 is a member that covers the case 4 as well as the shoe 6 and the elastic member 7 housed in the case 4, and is made of, for example, a steel plate. The cover 5 includes a regulating wall 51, a pair of fixed walls 52 extending from the vertical ends of the regulating walls 51 toward one side in the sliding direction, and a pair of fixed walls 52 extending from the ends of the regulating walls 51 in the arrangement direction toward one side in the sliding direction. and a pair of retaining walls 53 extending along the length thereof.

The regulation wall 51 has a through hole 51A through which the arm 2 is passed, and is arranged to face the base wall 41 of the case 4 in the sliding direction. In the door checker 1, the stopper 22 of the arm 2 contacts the portion of the regulation wall 51 surrounding the through hole 51A to regulate the door D to the fully open position.

The fixed wall 52 has a wall portion 52A extending from the vertical end of the regulation wall 51 toward one side in the sliding direction, and a flange portion 52B extending outward in the vertical direction from the end of the wall portion 52A. there is Each flange portion 52B is provided with a through hole 52C into which the shaft portion of the welding bolt 9 is inserted. The welding bolt 9 has a shaft portion inserted into the through hole 52C from the other side in the sliding direction toward one side, and a head portion welded to the flange portion 52B.

The holding wall 53 is provided with an engagement hole 53A with which the claw portions 46 (only one is shown) provided on the third side wall 42C and the fourth side wall 42D of the case 4 are engaged. The case 4 is held by the cover 5 by engaging the pair of claws 46 with the engagement holes 53A of the cover 5 , and constitutes the housing of the check unit 3 together with the cover 5 .

As shown in FIG. 4, the shoe 6 is a member that can come into contact with the uneven portion 23 provided on the arm 2, and is made of, for example, resin having high slidability. The shoe 6 is arranged between the fourth side wall 42</b>D of the case 4 and the arm 2 . The shoe 6 has a plate-like body portion 61 , a contact portion 62 and a pair of restricting portions 63 .

The contact portion 62 is a portion that can contact the uneven portion 23 of the arm 2, and is provided so as to protrude from the body portion 61 toward the arm 2 (see FIG. 6). The contact portion 62 has a shape that allows it to enter each of the concave portions 23B, 23D, and 23F of the concave/convex portion 23 .

The restricting portion 63 is a portion that can come into contact with the stopper surface 44 of the case 4 , and is provided above and below the contact portion 62 . The restricting portions 63 are provided so as to protrude from the upper and lower ends of the body portion 61 toward the stopper surface 44 . The restricting portion 63 protrudes from the contact portion 62 to the side where the arm 2 is arranged, that is, to the right.

As shown in FIG. 4 , the contact portion 62 of the shoe 6 is separated from the arm 2 when the restricting portion 63 contacts the stopper surface 44 of the case 4 at least when the door D is closed. As a result, it is possible to prevent the contact portion 62 and the arm 2 from rubbing against each other due to, for example, vibration when the automobile is running, so that wear of the contact portion 62 and the arm 2 can be reduced.

The elastic member 7 is a member that biases the shoe 6 toward the arm 2 . In this embodiment, the elastic member 7 is a compression coil spring. The elastic member 7 is arranged between the fourth side wall 42D of the case 4 and the shoe 6 in a compressed state. A plurality of elastic members 7 are provided. Specifically, in this embodiment, two elastic members 7 are provided. The two elastic members 7 are vertically arranged side by side between the fourth side wall 42</b>D and the shoe 6 .

As shown in FIGS. 4 and 5, the body portion 61 of the shoe 6 has two annular recesses 61A arranged vertically on the surface opposite to the contact portion 62, into which the ends of the elastic member 7 can be inserted. is provided. In the door checker 1, the end of the elastic member 7 enters the recess 61A of the shoe 6, so that the position of the elastic member 7 with respect to the shoe 6 is less likely to shift.

The check unit 3 is fixed to the inner surface of the door D by welding bolts 9 welded to the cover 5 . Thereby, the cover 5 and the case 4 that constitute the housing of the check unit 3 are fixed to the door D. As shown in FIG.

Next, operation of the door checker 1 will be described.
As shown in FIG. 2(a), the check unit 3 is positioned at the front end of the arm 2 when the door D is closed. At this time, as shown in FIG. 4, the shoe 6 is biased toward the arm 2 by the elastic member 7, the restricting portion 63 contacts the stopper surface 44 of the case 4, and the contact portion 62 contacts the arm 2. not. When the restricting portion 63 is in contact with the stopper surface 44 , no force is applied to the arm 2 from the elastic member 7 and the shoe 6 .

When the door D is opened from the state shown in FIG. 2(a), the check unit 3 fixed to the door D swings to the left along with the door D, and moves along the arm 2 from the front end to the rear end of the arm 2. , and swing the arm 2 to the left. At this time, the shoe 6 urged toward the arm 2 by the elastic member 7 slides on the concave-convex portion 23, so that the operation of opening the door D can be moderated.

As shown in FIGS. 6 and 7, when the check unit 3 slides along the arm 2, the contact portion 62 of the shoe 6 comes into contact with the first convex portion 23A of the uneven portion 23 on the way, and the restricting portion 63 leaves the stopper surface 44 .

When the shoe 6 contacts the first convex portion 23A, the arm 2 receives a biasing force from the elastic member 7 via the shoe 6, so that the upper and lower inclined surfaces 24 move toward the corresponding support surfaces 43 provided on the case 4. and supported by the support surface 43 . In addition, the arm 2 is moved to the center in the vertical direction in the case 4 by pressing the pair of upper and lower inclined surfaces 24 against the pair of upper and lower support surfaces 43, so that the inner surfaces 42U and 42L of the case 4 facing in the vertical direction are aligned. A clearance can be formed between

After that, as shown in FIG. 8, the contact portion 62 of the shoe 6 passes the first convex portion 23A as the check unit 3 slides, and the contact portion 62 enters the first concave portion 23B. 63 contacts the stopper surface 44 again (see FIG. 4). As a result, the contact portion 62 of the shoe 6 is no longer in contact with the arm 2 .

After that, as the check unit 3 slides, the contact portion 62 of the shoe 6 passes through the second convex portion 23C, the second concave portion 23D and the third convex portion 23E and reaches the third concave portion 23F. Also in this case, the shoe 6 functions in the same manner as when the contact portion 62 passes through the first convex portion 23A and the first concave portion 23B.

As shown in FIG. 2(b), when the check unit 3 comes into contact with the stopper 22 of the arm 2, the swinging of the door D is restricted and the door D stops at the fully open position.

As the door D is closed from the fully open position shown in FIG. Slide and swing the arm 2 toward the right side. At this time as well, the shoe 6 urged toward the arm 2 by the elastic member 7 slides on the concave-convex portion 23, so that the operation of closing the door D can be moderated.

As shown in FIG. 8, when the door D is closed, the shoe 6, in addition to the biasing force of the elastic member 7, moves the check unit 3 generated by closing the door D to the right side (upper side in FIG. 8). The contact portion 62 is pressed against the uneven portion 23 (the convex portions 23A, 23C, and 23E) also by the force to be applied. That is, in the door checker 1 , the force for closing the door D acts together with the biasing force of the elastic member 7 as a force for pressing the shoe 6 against the uneven portion 23 . As a result, the shoe 6 can be brought into firm contact with the concave-convex portion 23 (convex portions 23A, 23C, 23E).

According to the door checker 1 described above, the postures of the shoe 6 and the arm 2 can be stabilized by the plurality of elastic members 7 arranged in the vertical direction. can be done. Further, since the arm 2 urged by the elastic member 7 via the shoe 6 can be supported by the pair of upper and lower support surfaces 43 provided on the case 4, the posture of the arm 2 can be further stabilized. It is possible to prevent the arm 2 from tilting with respect to the case 4 .

Further, contact between the inclined surfaces 24 of the arm 2 biased by the elastic member 7 via the shoe 6 and the corresponding inclined support surfaces 43 causes the arm 2 and the inner surfaces 42U, 42L of the case 4 to be brought into contact with each other. Since a clearance can be formed between , the contact of the arm 2 with the inner surfaces 42U and 42L of the case 4 can be suppressed.

By suppressing the inclination of the arm 2 with respect to the case 4 and suppressing the contact of the arm 2 with the inner surfaces 42U and 42L of the case 4 in this manner, the arm 2 can move toward the case 4. It is possible to suppress the occurrence of abnormal noise and the deterioration of the operational feeling when sliding against the check unit 3 including.

In addition, since the first surface S1 of the arm 2 faces the horizontal direction, foreign matter such as sand is prevented from accumulating on the first surface S1 compared to when the first surface S1 faces upward. can be done. As a result, wear of the first surface S<b>1 of the arm 2 and the shoe 6 when the arm 2 slides relative to the check unit 3 , generation of abnormal noise, and deterioration of operational feeling can be suppressed. It should be noted that the first surface S1 facing the horizontal direction does not only mean that the first surface S1 faces the horizontal direction completely, including when

In addition, since the upper surface S3 of the arm 2 is inclined downward from the upper end of the second surface S2 toward the upper end of the first surface S1, foreign matter such as sand adhering to the upper surface S3 is removed from the inclined upper surface S3. can be dropped along As a result, accumulation of foreign matter on the upper surface S3 of the arm 2 can be suppressed.

One end of the arm 2 is attached to the door D and the case 4 is fixed to the body B, and the first surface S1 of the arm 2 is oriented in the horizontal direction when the door D is closed. , the operation of opening and closing the door D, and in this embodiment, the operation of closing the door D can press the uneven portion 23 of the arm 2 against the shoe 6 . As a result, when the door D is opened and closed, the urging force of the elastic member 7 is also applied, so that the concave-convex portion 23 of the arm 2 and the shoe 6 can be firmly brought into contact with each other. As a result, when the door D is opened and closed, it is possible to suppress the occurrence of abnormal noise such as chatter.

In addition, since the elastic member 7 is a compression coil spring, a plurality of vertically arranged compression coil springs can be used to direct the shoe 6 toward the arm 2 and to move the arm 2 toward the support surface 43 of the case 4 via the shoe 6. can be urged substantially straight in the axial direction of the compression coil spring. Thereby, the postures of the shoe 6 and the arm 2 can be stabilized.

An embodiment of the door checker has been described above, but the door checker can be modified appropriately as exemplified below. In addition, below, the same code|symbol is attached|subjected about the component similar to the said embodiment, and description is abbreviate|omitted suitably.

As shown in FIGS. 9 and 10 , the door checker 1 may be configured to further include an arm cover 10 . The arm cover 10 is provided to cover the arm 2 when the door D is closed. Specifically, the arm cover 10 has a plate shape and is provided so as to cover the upper surface S3 of the arm 2 . Arm cover 10 is provided integrally with case 4 . The arm cover 10 is provided so as to protrude from the first side wall 42A of the case 4 and extend along the arm 2 through the through hole 51A of the cover 5 .

The arm cover 10 has a first cover portion 11 and a second cover portion 12 .
The first cover portion 11 is a portion that covers the top surface S3 of the arm 2 . Also, the first cover portion 11 is provided so as to cover the first surface S1 of the arm 2 . Specifically, the first cover portion 11 extends to the outside (to the left in FIG. 10) of the first surface S1 in the arrangement direction.

The second cover portion 12 is a portion that covers the inclined surface 24 of the second surface S<b>2 of the arm 2 , and extends from the end of the first cover portion 11 while bending along the inclined surface 24 . Specifically, the second cover portion 12 extends obliquely downward along the upper inclined surface 24 from the end of the first cover portion 11 on the side of the second surface S2. Overlay surface 24 .

The upper surface S10 of the arm cover 10 is inclined downward from one side to the other side of the arrangement direction. Specifically, the upper surface S10 of the arm cover 10 is inclined downward from the first surface S1 side toward the second surface S2 side (from left to right in FIG. 10) in the arrangement direction. More specifically, the upper surface S11 of the first cover portion 11 is inclined downward from the first surface S1 side toward the second surface S2 side, and the upper surface S12 of the second cover portion 12 is inclined downward from the first surface S1 side toward the second surface S2 side. It inclines so that it may be located downward as it goes to the 2nd surface S2 side from the S1 side.

The angle formed by the upper surface S12 of the second cover portion 12 with respect to the horizontal direction is greater than the angle formed by the upper surface S11 of the first cover portion 11 with respect to the horizontal direction. That is, the slope of the upper surface S12 of the second cover portion 12 is greater than the slope of the upper surface S11 of the first cover portion 11 .

According to the door checker 1 as described above, the arm cover 10 can prevent foreign matter from accumulating on the arm 2 . Specifically, it is possible to prevent foreign matter from accumulating on the upper surface S3 of the arm 2 when the door D is closed.

In addition, since the upper surface S10 of the arm cover 10 is inclined so as to be positioned downward from one side to the other in the arrangement direction, the foreign matter adhering to the upper surface S10 of the arm cover 10 is dropped along the inclination of the upper surface S10. be able to. In particular, since the upper surface S10 of the arm cover 10 is inclined downward from the first surface S1 side toward the second surface S2 side, the irregularities 23 remove the foreign matter adhering to the upper surface S10 of the arm cover 10. It can be dropped on the opposite side (second surface S2 side) to the provided first surface S1 side.

In addition, since the arm cover 10 has the first cover portion 11 and the second cover portion 12, the first cover portion 11 can prevent foreign matter from accumulating on the upper surface S3 of the arm 2, The portion 12 can prevent foreign matter from accumulating on the second surface S<b>2 of the arm 2 , particularly the inclined surface 24 . In addition, since the first cover portion 11 (arm cover 10) covers the first surface S1, it is possible to prevent foreign matter from adhering to the first surface S1 of the arm 2, especially the uneven portion .

Further, since the arm cover 10 is provided integrally with the case 4, the number of parts of the door checker 1 can be reduced. Thereby, for example, the man-hours for assembling the door checker 1 can be reduced.

Note that the arm covers may be provided above and below the arm. For example, as shown in FIG. 11, the door checker 1 may be configured to include a first arm cover 10A provided above the arm 2 and a second arm cover 10B provided below the arm 2. good. The first arm cover 10A has the same structure as the arm cover 10 described above, and the second arm cover 10B has a vertically symmetrical structure with the first arm cover 10A. Such a door checker 1 can be applied to both the left door D and the right door D of an automobile. That is, the door checker 1 can be used as a common component.

Also, the arm cover 10 may be provided integrally with the cover 5 instead of the case 4 . Alternatively, the arm cover 10 may be provided separately from the case 4 and the cover 5 and attached to the case 4 or the cover 5 . Also, the arm cover may be made of resin, or may be made of metal.

In the above-described embodiment, two elastic members 7 are provided and arranged side by side in the vertical direction (perpendicular direction). good too. Further, in the above embodiment, the elastic member 7 is a compression coil spring, but the elastic member may be, for example, an elastic body made of rubber.

In the above-described embodiment, the upper surface S3 of the arm 2 is inclined downward from the upper end of the second surface S2 toward the upper end of the first surface S1. You may incline so that it may be located downward as it goes to the upper end of a 2nd surface from an upper end. In other words, the upper surface of the arm may be inclined downward as it moves away from the first surface. According to this, it is possible to suppress accumulation of foreign matter on the upper surface of the arm, and the foreign matter adhered to the upper surface of the arm can easily move along the slope in a direction away from the first surface. As a result, it is possible to prevent foreign matter dropped from the upper surface of the arm from entering between the first surface and the shoe. Also, the arm may have a configuration in which the upper surface is not inclined.

In the above-described embodiment, the first surface S1 of the arm 2 faces the left-right direction when the door D is closed. In the case where the door can be opened and closed by swinging back and forth, the first surface of the arm may face the front and back direction when the door is closed.

In the above embodiment, the first surface S1 of the arm 2 faces the horizontal direction, but the first surface of the arm may face the vertical direction (vertical direction), for example. Specifically, the first surface of the arm may face upward or downward.

In the above embodiment, the door checker 1 is configured such that one end of the arm 2 in the sliding direction is swingably attached to the body B of the automobile, and the case 4 is fixed to the door D. However, for example, the door checker may be configured such that one end of the arm in the sliding direction is swingably attached to the door, and the case is fixed to the body.

In the above-described embodiment, the arm 2 is composed of the steel plate as the core material and the resin that covers the steel plate. may For example, the arm may be manufactured by cutting an aluminum alloy or the like, or by cutting a polyamide resin or the like.

In the above-described embodiment, the door checker 1 for automobiles is exemplified, but the door checker may be used for vehicles other than automobiles, such as ships and aircraft.

Each element described in the above embodiment and modifications may be implemented in any combination.

Reference Signs List 1 door checker 2 arm 4 case 6 shoe 7 elastic member 10 arm cover 23 uneven portion 24 inclined surface 41A through hole 43 support surface B body D door S1 first surface S2 second surface S3 upper surface

Claims (6)

a case having a through hole;
an arm that is slidable with respect to the case while being passed through the through hole;
a shoe housed in the case and capable of coming into contact with an uneven portion provided on the arm;
an elastic member housed in the case and biasing the shoe toward the arm;
The arm has a first surface provided with the uneven portion and a second surface located opposite to the first surface,
the shoe and the elastic member are arranged only on the first surface side of the arm,
a plurality of said elastic members are provided and arranged side by side in an orthogonal direction orthogonal to both the sliding direction of said arm and the direction in which said arm and said shoe are arranged;
the case has a support surface that supports the arm when the second surface of the arm contacts;
The second surface has inclined surfaces at both ends in the orthogonal direction that are inclined so as to approach the side on which the shoe is arranged as it goes from the center to the edge in the orthogonal direction,
The support surface is provided corresponding to each of the inclined surfaces, and is inclined so as to approach the side on which the shoe is arranged as it goes from the center to the end of the case in the orthogonal direction. checker. 2. The door checker according to claim 1, wherein said first surface faces in a horizontal direction. the arm has an upper surface that connects the upper end of the first surface and the upper end of the second surface;
3. The door checker according to claim 2, wherein the upper surface is inclined downward from one of the upper end of the first surface and the upper end of the second surface toward the other. one end of the arm in the sliding direction is swingably attached to one of a vehicle body and a door that can be opened and closed by swinging left and right with respect to the body;
the case is fixed to the other of the body and the door;
4. The door checker according to claim 2, wherein the first surface faces in the left-right direction when the door is closed. 5. The door checker according to claim 1, wherein said elastic member is a compression coil spring. 6. The door checker according to claim 1, further comprising an arm cover that covers the arm when the door is closed.

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