JPH0431959Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a door check device that regulates the opening angle of an automobile door in stages.

<Prior art> As shown in Fig. 2, door check devices have conventionally been constructed by overlapping two corrugated plates.
Alternatively, by providing unevenness on one plate, the raised portion 14a,
14a, and a pair of guide shoes 17, 17 supported by a holding member 15 fixed to the door 13 side and urged to press the arm 14 with cushion members 16, 16. The guide shoes 17, 17 sandwich the arm 14 and move the arm 1 in response to the opening/closing operation of the door 13.
4, the raised portion 14a of the arm 14,
Sliding type door check devices 11 are widely used, which are configured to maintain an appropriate door opening degree by shifting to 14a.

<Problems to be solved by the invention> However, in the conventional door check device described above, since the opening angle of the door is maintained by the frictional force between the guide shoe and the arm, wear of the guide shoe can be avoided. There is a problem in that it is difficult to maintain the door opening degree over a long period of time due to wear of the guide shoe.

<Means for Solving the Problems> The present invention relates to the improvement of the above-mentioned sliding type door check device, and has been made to solve the above problems, and employs the following technical means, that is, the structure.

It consists of an arm that is horizontally swingably supported on the body side of the automobile, and a guide shoe that is supported by a holding member fixed to the door side and is biased by a cushion material, and the guide shoe holds the arm. In the door check device configured to slide on the arm according to the opening/closing operation of the door, the arm has at least one pair of concave spherical surfaces corresponding to the upper and lower surfaces of the arm in the longitudinal direction. A hole is bored in the cushion material and the guide shoe in a direction perpendicular to the axis of the arm, and a steel ball biased by an elastic member is inserted into the hole of the guide shoe to open and close the door. A door check device characterized in that the steel ball is arranged so as to be able to roll on the arm according to the movement of the door, and the steel ball is configured to maintain the opening degree of the door by engaging with a concave spherical portion of the arm. be. In the above configuration, the guide shoe is made of a self-lubricating synthetic resin or a sintered alloy. Further, as the elastic member that biases the steel ball, a spring member such as a coil spring or a leaf spring, or a rubber elastic body is used.

<Example> The contents will be explained in detail below using FIG. 1 corresponding to the example.

An arm 4 is supported on the vehicle body 2 side of the automobile so as to be able to swing in the horizontal direction, and the arm 4 has concave spherical portions 4a, 4a that correspond to each other at a predetermined interval on the upper and lower surfaces in the longitudinal direction. is formed. door 3
A holding member 5 consisting of a case 5a into which the arm 4 is inserted and a cover 5b to which the case 5a is fixed is fixed to the side, and the arm 4 is fixed in the case 5a of the holding member 5. A pair of cushion materials 6, 6 and guide shoes 7, 7 biased by the cushion materials 6, 6 are disposed with the cushion materials 6, 6 in between.
The guide shoes 7, 7 are arranged to sandwich the arm 4 and to be able to slide on the arm 4 along its longitudinal direction. Holes 6a, 6a and 7a, 7a are bored in the cushion materials 6, 6 and the guide shoes 7, 7 in a direction perpendicular to the axis of the arm 4, and holes 7a, 7a of the guide shoes 7, 7 are provided with holes 6a, 6a and 7a, 7a. Steel balls 8, 8 which are biased by coil springs 9, 9 whose one ends are in contact with the inner wall surface of the case 5a are rotatably housed. The steel balls 8, 8 are urged by the coil springs 9, 9 to roll on the arm 4 in accordance with the opening/closing operation of the door 3, and engage with the concave spherical portions 4a, 4a of the arm 4. The open position of the door 3 is maintained by.

<Effects of the Invention> The automobile door check device of the present invention has the above-mentioned configuration, and the holding force for holding the door in the open position is obtained by the engagement of the steel ball with the concave spherical portion on the arm. There is no decrease in the ability to hold the door open due to wear of the guide shoe.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a door check device according to an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional door check device. 1...Door check device, 2...Vehicle body, 3...
Door, 4... Arm, 4a... Concave spherical part, 5...
Holding portion, 6...Cushion material, 7...Guide shoe, 7a...Hole portion, 8...Steel ball, 9...Coil spring.

Claims (1)

[Scope of utility model registration request] It consists of an arm that is horizontally swingably supported on the body side of the automobile, and a guide shoe that is supported by a holding member fixed to the door side and is biased by a cushion material, and the guide shoe holds the arm. In the door check device configured to slide on the arm in accordance with the opening/closing operation of the door, the arm is formed with at least one pair of concave spherical surfaces corresponding to the upper and lower surfaces of the arm in the longitudinal direction. A hole is bored in the cushion material and the guide shoe in a direction perpendicular to the axis of the arm, and within the hole of the guide shoe, a steel ball biased by an elastic member is inserted onto the arm in response to the opening/closing operation of the door. 1. A door check device, characterized in that the steel balls are disposed so as to be able to roll, and the door opening degree is maintained by the steel balls engaging with the concave spherical portion of the arm.