JP2021146834A - Vehicle door stopper structure - Google Patents

Abstract

To solve a problem that in a stopper structure for elastically supporting a back door 2 of a vehicle at a closing position, when loss of elasticity occurs in an elastic member on a conventional stopper reception part side due to aging deterioration, since in some cases, shortage of an interference amount of a stopper reception part with respect to a stopper on the back door side causes a gap between both of the parts and the gap causes looseness and noise generation during traveling, it is required to secure a sufficient interference amount even if aging deterioration occurs.SOLUTION: A lip part 24 of a stopper reception part 20 includes: a bent part 25 serving as a starting point of elastic deformation; and an abutment reception part 23 on which an abutment part 11b of a stopper 11 abuts. The abutment reception part 23 has a first abutment angle part 26 on a tip side and a second abutment angle part 27 on a base part side, on which the stopper 11 abuts step by step. Through sequential abutment of the first abutment angle part 26 and the second abutment angle part 27 step by step, the interference amount is secured.SELECTED DRAWING: Figure 5

Description

The present disclosure relates to a stopper structure that regulates the closing position of the vehicle door.

For example, as disclosed in Patent Document 1, the closing position of the back door that opens and closes the opening at the rear of the vehicle is regulated by the stopper structure. A resin stopper is provided on the back door side. A rubber stopper receiving portion is provided on the opening side facing the stopper. The stopper comes into contact with the stopper receiving portion, and the closing position of the back door is restricted. In this type of stopper structure, an interference design is made to provide an interference amount (interference allowance) between the stopper and the stopper receiving portion. By setting a sufficient amount of interference, the stopper is pressed while the stopper receiving portion is elastically deformed when the door is closed. This interference design prevents a gap from being created between the stopper and the stopper receiving portion when the door is closed.

Patent Document 1 describes that the stopper receiving portion is elastically deformed in the axial direction so that the stopper comes into contact with the stopper. Patent Documents 2 and 3 describe that the lip portion of the stopper receiving portion is elastically deformed in the rotational direction so that the stopper comes into contact with the stopper. Both are designed for interference.

Japanese Unexamined Patent Publication No. 6-227259 Microfilm of Jitsugyo No. 52-179256 (Jitsukai Sho No. 54-10015) Japanese Unexamined Patent Publication No. 2006-299525

However, especially in the stopper receiving portion, settling occurs due to aged deterioration. Therefore, in the conventional stopper structure, a sufficient amount of interference cannot be secured due to aged deterioration. As a result, a gap may be generated between the stopper body and the stopper receiving portion due to vibration or the like during traveling, which may cause abnormal noise. In this respect, it is necessary to take measures against aging deterioration of the stopper structure.

According to one feature of the present disclosure, it is a vehicle door stopper structure that elastically supports the door with respect to the vehicle body when the door that opens and closes the opening of the vehicle body is closed. It has a stopper receiving portion on one of both members around the opening of the door or the vehicle body, and a stopper provided on the other of both members. The stopper receiving portion has a base portion attached to one of both members and a lip portion extending from the base portion toward the stopper. The lip portion has a bent portion which is a starting point of elastic displacement and a contact receiving portion with which a stopper is abutted. The contact receiving portion has a first contact angle portion on the tip side and a second contact angle portion on the base side on which the stopper is gradually contacted.

Therefore, when the door is closed, the stopper is brought into contact with the contact receiving portion of the lip portion. At this time, the lip portion is elastically displaced starting from the bent portion when the stopper is brought into contact with the lip portion. The contact receiving portion of the lip portion has a first contact angle portion on the tip side and a second contact angle portion on the base side. Therefore, the lip portion is elastically displaced by abutting the first contact angle portion against the stopper and then sequentially abutting the second contact angle portion stepwise. The elastic displacement of the lip portion is made by rotating around the bent portion. In this way, the lip portion rotates while stepwise contacting the first contact angle portion and the second contact angle portion of the contact receiving portion. Therefore, even if the lip portion of the stopper receiving portion is settled due to aged deterioration, the contact receiving portion is displaced around the bent portion and the first contact angle portion and the second contact angle portion are stepwise contacted. A sufficient amount of interference is secured by being in contact with each other.

According to another feature of the present disclosure, when the door is closed from the open state, the second contact angle portion slides with respect to the stopper and the first contact angle portion separates from the stopper. Therefore, as the door closes, the contact receiving portion of the lip portion is pushed by the stopper and elastically displaced in the rotational direction. In the process of elastic displacement of the lip portion, the first contact angle portion is first slid by the stopper, and then the second contact angle portion is slid so that the first contact angle portion is separated from the stopper. As a result, the first contact angle portion and the second contact angle portion of the contact receiving portion are sequentially and stepwise sliding contact with the stopper.

According to another feature of the present disclosure, the bent portion of the lip portion is formed by being recessed between the base portion and the contact receiving portion. Therefore, the lip portion is reliably rotated around the recessed bent portion. As a result, even if the lip portion is settled due to deterioration over time, the first contact angle portion and the second contact angle portion are gradually displaced around the bent portion and are brought into contact with the stopper. A sufficient amount of interference is secured.

According to another feature of the present disclosure, the base portion is provided with a relief portion for allowing elastic displacement of the lip portion. Therefore, the elastic displacement of the lip portion is made smooth. As a result, settling due to aged deterioration of the lip portion is suppressed, and the generation of a gap between the lip portion and the stopper is suppressed.

It is a rear view of the state where the back door is opened as seen from the rear of the vehicle. FIG. 1 is an enlarged view of part II of FIG. 1, which is a perspective view showing a state in which the stopper is in contact with the stopper receiving portion. This figure shows a state seen through from the closed door side. It is a perspective view which shows the contact state of a stopper with respect to a stopper receiving part. This figure shows a state seen from the direction of arrow III in FIG. It is a side view which shows the contact state of a stopper with respect to a stopper receiving part. It is an enlarged view of the V part in FIG. This figure shows the state of elastic displacement of the lip portion due to the closing operation of the back door.

Next, an embodiment of the present disclosure will be described with reference to FIGS. 1 to 5. As shown in FIG. 1, the vehicle door stopper structure (hereinafter, stopper structure 10) according to the present embodiment is applied to the back door 2 of the vehicle (body) 1. A substantially rectangular opening 3 is provided at the rear of the vehicle 1. The opening 3 is opened and closed by the back door 2. The back door 2 is supported on the upper part of the opening 3 via a pair of left and right hinges 4. The opening 3 of the back door 2 is opened and closed by rotating the back door 2 up and down via a hinge 4. The back door 2 is rotated upward to open the opening 3. The back door 2 is rotated downward to close the opening 3. One damper 5 is interposed between the left and right side portions of the back door 2 and the left and right side portions of the opening 3. The back door 2 is urged to the open side by the left and right dampers 5. The back door 2 is locked in a fully closed position by a lock mechanism (not shown).

A set of stopper structures 10 are interposed between the left and right side portions of the back door 2 and the left and right side portions of the opening 3. The left and right stopper structures 10 elastically support the back door 2 with respect to the opening 3 of the vehicle 1 when the back door 2 is closed. The left and right stopper structures 10 are symmetrically configured. The stopper structure 10 on the right side of the vehicle will be described below. The stopper structure 10 includes a stopper 11 on the back door 2 side and a stopper receiving portion 20 on the edge side of the opening 3.

The stopper 11 is integrally molded of a relatively hard resin as a material. The stopper 11 has a base portion 11a for mounting on the back door 2 and a contact portion 11b that comes into contact with the stopper receiving portion 20. The contact portion 11b is integrally formed on one surface (the side facing the stopper receiving portion 20) of the base portion 11a having a flat plate shape. The stopper 11 is fixed to the indoor side surface of the back door 2 by a bolt 11c inserted substantially in the center of the base portion 11a. The contact portion 11b has a substantially block body shape.

The stopper receiving portion 20 is integrally molded of a relatively soft synthetic rubber as a material. The stopper receiving portion 20 includes a base portion 21 for attaching to the edge portion of the opening 3. The base portion 21 has the lip portion 24 integrally. The lip portion 24 extends from the base portion 21 toward the stopper 11.

The lip portion 24 has a bent portion 25 which is a starting point of elastic displacement and a contact receiving portion 23 to which the stopper 11 is abutted. The lip portion 24 elastically rotates with the bent portion 25 as the starting point (center) when the contact portion 11b of the stopper 11 is pressed. As a result, the back door 2 is elastically supported in the closed position.

In FIG. 4, the contact portion 11b of the stopper 11 at the door closing position and the lip portion 24 at the door opening position are shown by solid lines, respectively. The range in which the contact portion 11b of the stopper 11 and the lip portion 24 overlap is shown as the interference amount D. The lip portion 24 is displaced by a distance corresponding to the interference amount D, and the back door 2 is closed.

As shown in FIG. 5, the contact receiving portion 23 corresponds to the side surface opposite to the bent portion 25. When the back door 2 is closed, the contact portion 11b of the stopper 11 is brought into contact with the contact receiving portion 23. The contact receiving portion 23 is provided with a first contact angle portion 26 and a second contact angle portion 27. A first contact angle portion 26 is provided at substantially the tip end portion of the contact receiving portion 23. A second contact angle portion 27 is provided substantially in the middle of the contact receiving portion 23 (on the base 28 side of the first contact angle portion 26).

The first contact angle portion 26 is provided as a sharp tip corner portion of approximately 90 °. The second contact angle portion 27 is provided as a gently pointed corner portion having an obtuse angle of, for example, about 120 °. The second contact angle portion 27 projects in a direction away from the bent portion 25 (outer peripheral side of the virtual arc surface 29) with respect to the smooth virtual arc surface 29 connecting the first contact angle portion 26 and the base portion 28. It is provided. Usually, a smooth contact receiving portion is provided by cutting the waste portion along the virtual arc surface 29. On the other hand, in the present embodiment, the contact receiving portion 23 is provided with a second contact angle portion 27 protruding toward the outer peripheral side from the virtual arc surface 29. As a result, the pressing force when the virtual arc surface 29 is brought into contact is not a continuous contact state in which the pressing force is substantially constant, but a discontinuity in which the pressing force changes from the first contact angle portion 26 to the second contact angle portion 27. A contact state is realized.

At the stage where the contact portion 11b of the stopper 11 is displaced in the closing direction indicated by the white arrow in the figure, the first contact angle portion 26 and the second contact angle portion 27 sequentially and stepwise hit the contact portion 11b. Be touched. Immediately before the back door 2 is closed and reaches the fully closed position, as shown by the arrow (0) in FIG. 5, the contact portion 11b of the stopper 11 is the first contact angle portion 26 which is the tip end portion of the lip portion 24. Is in contact with. The position indicated by the arrow (0) corresponds to the initial position of the lip portion 24. At the stage of the initial position of the lip portion 24, the second contact angle portion 27 is not in contact with the contact portion 11b.

Further, when the back door 2 is closed and displaced to the fully closed position side (left side in FIG. 5), the contact portion 11b of the stopper 11 moves to the position indicated by the arrow (1) in FIG. As a result, the first contact angle portion 26 is pushed by the contact portion 11b. At this stage, the first contact angle portion 26 is displaced relative to the contact portion 11b while being slidably contacted, and the lip portion 24 rotates in the counterclockwise direction shown with the bent portion 25 as the starting point. At the stage indicated by the arrow (1), the second contact angle portion 27 is brought into contact with the contact portion 11b in addition to the first contact angle portion 26.

Further, when the back door 2 moves to the fully closed position side and the contact portion 11b is displaced to the position indicated by the arrow (2) in FIG. 5, the lip portion 24 is further elastically displaced in the counterclockwise direction. As a result, the first contact angle portion 26 is separated from the contact portion 11b. At this stage, the second contact angle portion 27 is in contact with the contact portion 11b as shown in the figure.

Further, when the back door 2 moves to the fully closed position side and the contact portion 11b moves to the position indicated by the arrow (3) in FIG. 5, the lip portion 24 is further elastically displaced around the bent portion 25. As a result, the second contact angle portion 27 is slid on the contact portion 11b and is displaced relative to each other. Further, in addition to the second contact angle portion 27, the base portion 28 side of the contact receiving portion 23 is brought into contact with the contact portion 11b.

In this way, the lip portion 24 is pushed by the contact portion 11b and elastically displaced in the rotational direction starting from the bent portion 25. When the back door 2 is finally fully closed, the contact portion 11b of the stopper 11 is further displaced to the left side of the drawing with respect to the arrow (3) in FIG. In this fully closed position, the region between the second contact angle portion 27 and the base portion 28 of the contact receiving portion 23 of the lip portion 24 is pressed by the contact portion 11b. As a result, the back door 2 is elastically supported by the left and right stopper structures 10.

When the back door 2 is locked by a lock mechanism (not shown) and fully closed, the lip portion 24 is largely elastically displaced from the initial position indicated by the arrow (0) in FIG. 5 starting from the bent portion 25. The lip portion 24 is elastically displaced in a direction that brings the first contact angle portion 26 closer to the upper surface of the base portion 21. The amount of elastic displacement of the lip portion 24 from the initial position indicated by the arrow (0) to the fully closed position of the back door 2 corresponds to the amount of interference D of the lip portion 24 with respect to the stopper 11.

A relief portion 22 for allowing elastic displacement of the lip portion 24 is provided on the upper surface of the base portion 21. The relief portion 22 is provided by forming the bent portion 25 side of the upper surface of the base portion 21 one step lower than the base portion 28 side. Mainly the tip end side (first contact angle portion 26 side) of the lip portion 24 that has been largely elastically displaced enters the relief portion 22. As a result, smooth elastic displacement of the lip portion 24 is realized.

According to the stopper structure 10 configured as described above, the lip portion 24 of the stopper receiving portion 20 is pushed by the stopper 11 and elastically displaced as the back door 2 is closed. The lip portion 24 abuts the first contact angle portion 26 against the stopper 11 and then sequentially abuts the second contact angle portion 27 stepwise (discontinuously) to elastically displace.

Therefore, even if the lip portion 24 of the stopper receiving portion 20 is settled due to aged deterioration, the contact receiving portion 23 is displaced around the bent portion 25, and the first contact angle portion 26 and the second contact angle portion are formed. 27 is brought into contact in stages. As a result, a sufficient amount of interference D with respect to the stopper 11 of the lip portion 24 is secured. For example, assuming that the initial position of the lip portion 24 is lowered to the position shown in FIG. 5 (2) due to aged deterioration, the second contact angle portion 27 is closer to the stopper 11 than the virtual arc surface 29. A large amount of interference can be secured by the amount of protrusion.

Further, according to the illustrated stopper structure 10, a bent portion 25 serving as a starting point of elastic displacement is recessed in the lip portion 24 of the stopper receiving portion 20. As a result, the elastic displacement of the lip portion 24 is made smooth.

Further, according to the stopper structure 10, the base portion 21 is provided with a lower relief portion 22 for allowing the elastic displacement of the lip portion 24. As a result, the elastic displacement of the lip portion 24 is made even smoother. Therefore, the settling due to the aged deterioration of the lip portion 24 is suppressed. At the same time, even if settling occurs, the amount of interference D between the lip portion 24 and the stopper 11 is sufficiently secured, and the generation of a gap between the two is suppressed. By suppressing the generation of gaps, the generation of rattling and abnormal noise while the vehicle is running can be prevented.

Various changes can be made to the embodiments described above. For example, the contact receiving portion 23 of the lip portion 24 may be provided with more contact angle portions in addition to the first contact angle portion 26 and the second contact angle portion 27.

As the material of the stopper receiving portion 20, instead of the illustrated synthetic rubber, a rubber-like material such as a TPO material can be used.

The illustrated stopper receiving portion 20 can be applied when the stopper receiving portion is provided on one of both members around the opening 3 of the back door 2 or the vehicle 1 and the stopper is provided on the other of both members.

Although the stopper structure 10 of the back door 2 has been illustrated, the stopper structure 10 exemplified for movable parts such as side doors on the side of the vehicle can be applied.

1 ... Vehicle (body)
2 ... Back door 3 ... Opening 4 ... Hinge 5 ... Damper 10 ... Stopper structure 11 ... Stopper 11a ... Base part, 11b ... Contact part, 11c ... Bolt D ... Interference amount (interference allowance)
20 ... Stopper receiving portion 21 ... Base portion 22 ... Relief portion 23 ... Contact receiving portion 24 ... Lip portion 25 ... Bending portion 26 ... First contact angle portion 27 ... Second contact angle portion 28 ... Base 29 ... Virtual Arc surface

Claims (4)

A vehicle door stopper structure that elastically supports the door with respect to the vehicle body when the door that opens and closes the opening of the vehicle body is closed.
A stopper receiving portion on one of the door or both members around the opening of the vehicle body,
It has a stopper provided on the other side of both members.
The stopper receiving portion has a base portion attached to one of the two members and a lip portion extending from the base portion toward the stopper.
The lip portion has a bent portion that serves as a starting point of elastic displacement and an abutting receiving portion with which the stopper is abutted, and the tip side of the abutting receiving portion abutting the stopper stepwise. A stopper structure for a vehicle door having a first contact angle portion and a second contact angle portion on the base side. The vehicle door stopper structure according to claim 1.
The contact receiving portion is for a vehicle door in which the second contact corner slides with respect to the stopper and the first contact corner separates from the stopper by closing the door from the open state. Stopper structure. The vehicle door stopper structure according to claim 1 or 2.
The bent portion of the lip portion is a stopper structure for a vehicle door formed by being recessed between the base portion and the contact receiving portion. The vehicle door stopper structure according to claim 3.
A stopper structure for a vehicle door in which a relief portion for allowing elastic displacement of the lip portion is provided on the base portion.

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