JP2009102859A - Door checking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door checking device having a case supporting a shaft rotatably, filled with viscous fluid in its internal space, and provided on either of vehicle body side and door side, having the shaft provided on the other of vehicle body side and door side and rotating in accordance with opening and closing of a door, and preventing the liquid from leaking from the case. <P>SOLUTION: The case 4 is composed of a bottomed cylindrical case body 1 having an opened face, a lid 11 covering the opened face of the case body 1, a bottom opposing part 53 opposing to a bottom part of the case body 1, a lid opposing part 55 opposing to the lid 11, a connection part 57 connecting the bottom opposing part 53 and the lid opposing part 55 mutually, and a base 51 preventing the lid 11 from levitating from the case body 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention includes a case that rotatably supports a shaft and is filled with a viscous fluid in an internal space, and the case is provided on one of a vehicle body side and a door side, and the shaft is The present invention relates to a door check device that is provided on the other side of the vehicle body side and the door side, and that one of the shaft and the case rotates relative to the other as the door is opened and closed.

As an example of a door check device, there is one having a case that rotatably supports a shaft and is filled with a viscous fluid (see, for example, Patent Document 1).
JP 2005-264616 A

In such a door check device, it is necessary that there is no liquid leakage from the case.
This invention is made | formed in view of the said subject, The subject is providing the door check apparatus which does not have the liquid leakage from a case.

  The invention according to claim 1 has a case in which the shaft is rotatably supported and the internal space is filled with a viscous fluid, and the case is provided on either the vehicle body side or the door side, In the door check device, wherein the shaft is provided on the other side of the vehicle body side and the door side, and one of the shaft and the case rotates relative to the other as the door is opened and closed. Comprises a bottomed cylindrical case main body having an open surface, and a lid covering the open surface of the case main body, and the device further includes a bottom facing portion facing the bottom of the case main body, the lid, It is a door check device characterized by having a base that has an opposing lid facing portion, a bottom facing portion, and a connecting portion that connects the lid facing portion, and that suppresses lifting of the lid from the case body.

  According to a second aspect of the present invention, when the base is attached to either the vehicle body side or the door side, the other party attached to the case extends in a direction intersecting the shaft. A wing portion having an abutment surface capable of abutting against the wing portion, and facing the abutment surface of the wing portion when attached to the base on either the vehicle body side or the door side. A pressing portion that presses the portion to be pressed and presses the contact surface of the wing portion against the mounted counterpart, and an attachment portion that is attached to either the vehicle body side or the door side. The door check device according to claim 1.

  According to a third aspect of the present invention, the case is inserted between the bottom facing portion of the base and the lid facing portion so as to be press-fitted, and the outer surface of the lid from the outer surface of the bottom portion of the case body. Is longer than the length between the bottom facing portion of the base and the lid facing portion in the portion disposed on the back side of the base with respect to the insertion direction of the case, and from the back side to the front side. 2. The rib is gradually lengthened toward the side, and a rib is provided on at least one of an outer surface of the bottom of the case body and an outer surface of the lid, and at least a part of the rib is crushed. Or it is a door check apparatus of 2 description.

  In the invention according to claim 4, the base and the case are in contact with only the pressing portion of the base and the wing portion of the case in the insertion direction of the case, and there is a gap in the other portion. The door check device according to claim 2 or 3, characterized in that.

  According to the invention of claim 1-4, the case includes a bottomed cylindrical case body having an open surface, and a lid that covers the open surface of the case body, and further includes a bottom portion of the case body. There is provided a base that has a bottom facing portion that opposes, a lid facing portion that faces the lid, a connecting portion that connects the bottom facing portion and the lid facing portion, and suppresses the lifting of the lid from the case body. As a result, the lid does not float from the case body, and there is no liquid leakage from the case.

  According to the invention of claim 2, the case is attached to the case when extending in a direction intersecting the shaft, and the base is attached to either the vehicle body side or the door side. Provided with a wing portion having an abutment surface capable of abutting against an opponent, and when the wing portion is attached to the base on either the vehicle body side or the door side, the abutment surface of the wing portion By providing the pressing portion that presses the portion facing the wing portion and presses the wing portion against the other side to which the abutting surface is attached, the swinging of the case with respect to the other side is prohibited. That is, it is possible to prevent the case from rotating about the shaft axis as the door is opened and closed.

  In addition, the base is provided with a mounting portion that is attached to either the vehicle body side or the door side, so that the base is placed on either the vehicle body side or the door side. Compared with the case where a member to be attached to is separately provided, the cost can be reduced.

  According to the invention of claim 3, the case is inserted between the bottom facing portion of the base and the lid facing portion so as to be in a press-fitted state, and the lid from the outer surface of the bottom portion of the case body. The length to the outer surface of the base is greater than or equal to the length between the bottom-facing portion of the base and the lid-facing portion in the portion disposed on the back side of the base with respect to the insertion direction of the case. The rib gradually becomes longer from the front side to the front side, and a rib is provided on at least one of the outer surface of the bottom portion of the case body and the outer surface of the lid, and at least a part of the rib is crushed so that the lid is There is no liquid leakage from the case by pressing against the body.

  According to the invention of claim 4, the base and the case are in contact with only the pressing portion of the base and the wing portion of the case in the insertion direction of the case, and there is a gap in the other portion. As a result, even if there are variations in part shapes, the positioning accuracy in the insertion direction does not decrease.

An embodiment of the present invention will be described with reference to FIGS. 1 is an exploded perspective view of the door check device, and FIG. 2 is an exploded perspective view of the case of FIG.
First, the case of the door check device will be described with reference to FIG. In the figure, a case 4 is a molded product of fiber reinforced plastic, and includes a bottomed cylindrical case body 1 having an open surface 2 and a lid 11 covering the open surface 2 of the case body 1. In this embodiment, a seal ring (not shown) is disposed between the case body 1 and the lid 11 so that the case body 1 and the lid 11 are sealed.

  On the inner bottom surface of the case main body 1, one end side of the shaft 5 is fitted, and a concave portion that rotatably supports the shaft 5 is formed. The case body 1 is filled with a viscous fluid (for example, oil). A flap 9 is attached along the shaft 5.

  A lid 11 is provided so as to cover the open surface 2 of the case 1. The lid 11 is also a molded product of fiber reinforced plastic, and a convex portion 11a is formed at a substantially central portion. The other end side of the shaft 5 is inserted into the convex portion 11a, and the shaft 5 is rotatably supported. A hole 13 is provided. The other end portion side of the shaft 5 protrudes to the outside of the case 4 through the hole 13 of the lid 11, and in this embodiment, is connected to a hinge pin of a door hinge.

  The door hinge includes a vehicle body side hinge, a door side hinge, a vehicle body side hinge, and a hinge pin through which the door side hinge is inserted. When the case 4 is provided on the vehicle body side, the hinge pin is fixed to the hinge on the door side. Conversely, when the case 4 is provided on the door side, the hinge pin is fixed to the hinge on the vehicle body side. In this embodiment, the case 4 is provided on the vehicle body side.

  And when rotating the shaft 5 in the case 4, a large resistance is generated at the start of the rotation of the shaft 5 or the orifice that gives different resistance depending on the phase angle of the shaft 5, and once the shaft 5 starts rotating, A mechanism is provided to reduce the resistance.

  Next, the base 51 will be described with reference to FIGS. The base 51 is a metal deep-drawn product having a recessed portion 51a into which the case 4 is inserted and an overhanging portion 51b formed around the recessed portion 51a and capable of contacting the vehicle body. The recess 51a of the base 51 includes a bottom facing portion 53 that faces the bottom portion 1b of the inserted case body 1, a lid facing portion 55 that faces the lid 11, and a connecting portion that connects the bottom facing portion 53 and the lid facing portion 55. 57. A substantially U-shaped groove 55a is formed in the lid facing portion 55 from the side facing the opening of the recessed portion 51a to the substantially central portion. As shown in FIG. 2, the width (W) of the groove 55 a is set to be equal to or larger than the width (w) of the convex portion 11 a of the lid 11.

  If the direction in which the shaft 5 protrudes is defined as the top, a hole 59 through which a bolt can be inserted is formed in the upper and lower portions of the overhanging portion 51b of the base 51, and the mounting portion 61 is in contact with the vehicle body side. . And the base 51 is attached to the vehicle body side by using a bolt (not shown) inserted through the hole 59 and a nut screwed into the bolt.

  On the side of the protruding portion 51b of the base 51, there are provided a recess 63 and a recess 65 in which a space is formed between the base 51 and the vehicle body. On the other hand, the case body 1 is formed with plate-like wings 21 and wings 23 that engage with the recesses 63 and the recesses 65. The wing portion 21 and the wing portion 23 have contact surfaces 21a and 23a that can contact the vehicle body side when the base 51 and the case 4 are attached to the vehicle body side. In the present embodiment, as shown in FIG. 1, the thickness (T) of the wing portion 21 and the wing portion 23 of the case body 1 is set to be larger than the depth (t) of the recess 63 and the recess 65. For this reason, when the base 51 and the case 4 are attached to the vehicle body side, the opposing surfaces 21b and 23b facing the contact surfaces 21a and 23a of the wing part 21 and the wing part 23 of the case body 1 are pressed parts. The base 51 is pressed by the concave portion 63, the bottom surface 63a of the concave portion 65, and the bottom surface 65a, so that the wing portion 21 of the case body 1 and the contact surfaces 21a, 23a of the wing portion 23 are pressed against the vehicle body side. Yes.

  And the wing | blade part 21 and the wing | blade part 23 of case 4 engage with the recessed part 63 of the base 51, and the recessed part 65, and when the vehicle body side is pressed, rotation of the case 4 centering on the axis | shaft of the shaft 5 is prohibited. It will be.

  Further, in this embodiment, as shown in FIG. 3 which is a cross-sectional view perpendicular to the shaft 5, the base 51 and the case 4 are recessed in the base 51 in the insertion direction of the case 4 (arrow D in the figure). The bottom surface 63a of 63, the bottom surface 65a of the recess 65, the facing surface 21b of the wing part 21 of the case body 1, and the facing surface 23b of the wing part 23 are in contact with each other, and the other part (the entire peripheral surface of the case body 1). The gap is formed so that there is a gap (S).

  Further, as shown in FIG. 4, the length from the outer surface of the bottom 1b of the case body 1 to the outer surface of the lid 11 is arranged on the back side of the base 51 with respect to the insertion direction of the case 4 (the direction of arrow D in the figure). The portion (F portion in the figure) is a length B that is equal to or longer than the length A between the bottom facing portion 53 and the lid facing portion 55 of the base 51 and gradually increases from the back side toward the near side. Thus, the length (C <B) of the concave portion 51a of the base 51 is the length C (B <C). In FIG. 4, the length from the outer surface of the bottom 1b of the case body 1 of the case 4 to the outer surface of the lid 11 is changed. However, as shown in FIG. 5, the bottom facing portion of the recess 51a 'of the base 51' You may change the length between 53 'and cover opposing part 55'. In the figure, the length between the bottom facing portion 53 ′ and the lid facing portion 55 ′ of the recess 51 a ′ of the base 51 ′ is related to the insertion direction of the case 4 ′ (the direction of arrow D in the figure). The opening side is a length B ′ that is equal to or shorter than the length C ′ from the outer surface of the bottom 1b ′ of the case body 1 ′ of the case 4 ′ to the outer surface of the lid 11 ′, and goes from the opening of the recessed portion 51a ′ to the back side. Gradually becomes shorter and becomes a length A ′ (A ′ <B ′) on the back side.

  The lid 11 has a plurality of concave portions in a portion facing the lid facing portion 55 of the base 51, and ribs 11b between the concave portions and the concave portions. The case 4 is inserted between the bottom facing portion 53 and the lid facing portion 55 of the base 51 so as to be in a press-fit state, and at least a part of the rib 11b is crushed.

According to such a configuration, the following effects can be obtained.
(1) The case 4 includes a bottomed cylindrical case main body 1 having an open surface 2 and a lid 11 covering the open surface 2 of the case main body 1, and the base 51 includes a bottom 1 b of the case main body 1. A base 51 having a bottom facing portion 53 facing the lid, a lid facing portion 55 facing the lid 11, a connecting portion 57 connecting the bottom facing portion 53 and the lid facing portion 55, and suppressing the lifting of the lid 11 from the case body. Since the lid 11 is not lifted from the case main body 1, there is no liquid leakage from the case 4.
(2) A wing portion that extends in a direction intersecting the shaft 5 in the case 4 and has a contact surface 21a and a contact surface 23a that can contact the mounted counterpart when the base 51 is mounted on the vehicle body side. 21. When the wing portion 23 is provided and the base 51 is attached to the vehicle body side, the wing portion 21, the abutting surface 21a of the wing portion 23, and the portion facing the abutting surface 23a are pushed, and the wing portion 21, the wing portion By providing the contact surface 21a of the portion 23, the recessed portion 63 as a pressing portion for pressing the contact surface 23a against the attached counterpart, the bottom surface 63a of the recessed portion 65, and the bottom surface 65a, the case 4 swings with respect to the counterpart. Is prohibited. That is, as the door is opened and closed, the case 4 can be prevented from swinging with respect to the other party about to swing about the axis of the shaft 5.

Further, by providing the base 51 with the attachment portion 61 that is attached to the vehicle body side, the cost can be reduced as compared with the case where a member for attaching the base 51 to the vehicle body side is separately provided.
(3) The case 4 is inserted between the bottom facing portion 53 and the lid facing portion 55 of the base 51 so as to be in a press-fitted state, and at least a part of the rib 11b is crushed, so that the lid 11 is There is no liquid leakage from the case 4 by pressing against the case body 1.
(4) With respect to the insertion direction of the case 4, the base 51 and the case 4 are in contact with only the pressing part of the base 51 and the wing part 21 and the wing part 23 of the case 4, and other parts have gaps. Even if there are variations in part shape, the positioning accuracy in the insertion direction does not decrease.

  The present invention is not limited to the above embodiment. In the above embodiment, the check device has been described. In addition, a rotary pump and a rotary damper having a case in which a shaft connected to another device is rotatably supported and the internal space is filled with a viscous fluid are also used. Applicable.

  Moreover, in the said form example, although the rib 11b was formed in the part facing the cover opposing part 55 of the base 51 of the lid | cover 11, you may form in the outer surface of the bottom part 1b of the case main body 1, or both. It may be formed.

It is a disassembled perspective view of a door check apparatus. It is a disassembled perspective view of the case of FIG. It is sectional drawing of the direction orthogonal to the shaft of the door check apparatus of FIG. It is a figure explaining the dimensional relationship of the fitting of a case and a base. It is a figure explaining the dimensional relationship of the fitting of the case of other forms, and a base.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case main body 4 Case 11 Cover 51 Base 53 Bottom facing part 55 Cover facing part 57 Connection part

Claims (4)

A shaft is rotatably supported and has a case in which an internal space is filled with a viscous fluid. The case is provided on either the vehicle body side or the door side. In the door check device provided on the other side of the door side, the shaft and one of the cases rotate relative to the other as the door is opened and closed,
The case comprises a bottomed cylindrical case body having an open surface, and a lid covering the open surface of the case body,
The apparatus further includes a bottom facing portion that faces the bottom portion of the case body, a lid facing portion that faces the lid, and a connecting portion that connects the bottom facing portion and the lid facing portion. A door check device comprising a base that suppresses lifting from the case body. In the case,
A wing portion extending in a direction crossing the shaft and having a contact surface capable of contacting an attached counterpart when the base is attached to either the vehicle body side or the door side. Provided,
In the base,
When attached to either the vehicle body side or the door side, the part facing the abutment surface of the wing part is pushed and the abutment surface of the wing part is pushed against the attached counterpart. A pressing part to be brought into contact;
The door check device according to claim 1, further comprising an attachment portion attached to either one of the vehicle body side and the door side. The case is inserted so as to be in a press-fit state between the bottom facing portion of the base and the lid facing portion,
The length from the outer surface of the bottom of the case body to the outer surface of the lid is:
With respect to the insertion direction of the case, the portion disposed on the back side of the base is not less than the length between the bottom facing portion of the base and the lid facing portion,
As it goes from the back side to the front side, it gradually becomes longer,
The door check device according to claim 1 or 2, wherein a rib is provided on at least one of an outer surface of the bottom of the case body and an outer surface of the lid, and at least a part of the rib is crushed.   The said base and said case are contact | abutted only by the pressing part of the said base, and the wing | blade part of the said case regarding the insertion direction of the said case, The other part has a clearance gap, It is characterized by the above-mentioned. 3. The door check device according to 3.

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