JP6432354B2 - Vehicle door check device - Google Patents

Description

  The present invention relates to a vehicle door check device when a vehicle door is opened.

 Conventionally, for example, a vehicle door opening and holding device described in Patent Document 1 is known. The door opening and holding device is provided outside the vehicle door, and has one end rotatably connected to a shaft portion provided on the vehicle body side and the other end rotatably connected to the door side. And a coil spring that is press-wound around the shaft portion, one end is a free end, and the other end is engaged with an arm. According to such a configuration, while the vehicle door is opened, sliding resistance is always generated between the shaft portion and the coil spring, and the sliding resistance increases as the door opening increases. Therefore, an increase in the inertial load generated when the vehicle door is opened is suppressed, and the vehicle door can be temporarily held at an arbitrary opening degree.

 On the other hand, for example, a vehicle door check device described in Patent Document 2 is known. This door check device is provided inside the vehicle door, a check arm having one end swingably arranged on the vehicle body side, a case fixed inside the vehicle door and inserted into the check arm, A stopper member provided at the other end of the check arm and a cushion member inserted through the check arm and fixed to the stopper member are provided. The cushion member contacts the case when the vehicle door is opened to the fully open position, and absorbs the inertial load of the vehicle door transmitted through the case. Therefore, the inertia load of the vehicle door is attenuated according to the elastic force of the cushion member. According to such a configuration, the opening operation can be restricted by holding the vehicle door in the fully open position without impairing the operability of the vehicle door.

Japanese Utility Model Publication No. 61-9968 JP 2005-307638 A

 However, in the vehicle door opening and holding device disclosed in Patent Document 1, the operation of the vehicle door becomes heavy due to sliding resistance generated between the shaft portion and the coil spring while the vehicle door is opened. There is.

  Such a problem is solved by the vehicle door check device of Patent Document 2. However, in the vehicle door check device of Patent Document 2, when the inertia load of the vehicle door is larger, the cushion member cannot absorb the inertia load and becomes a repelling force, and the vehicle door rebounds. In order to suppress the rebound, the cushion member may be thicker than the direction of receiving the inertial load. However, since other functional components and the like are arranged in an overly dense manner inside the vehicle where the cushion member is provided, the thickness of the cushion member cannot be easily changed. As described above, when the necessary thickness of the cushion member cannot be ensured, the inertial load of the vehicle door may not be sufficiently attenuated.

  The present invention has been made in view of such circumstances, and its purpose is to enable the inertial load of the vehicle door to be further suppressed at the fully open position of the vehicle door without impairing the door operability during the door opening operation. An object of the present invention is to provide a vehicle door check device.

 In order to solve the above-mentioned problem, in the invention according to claim 1, an attachment portion having a shaft portion attached to a periphery of the opening provided in the vehicle body, and a shaft portion that is pivotally supported by the shaft portion, opens and closes the opening. A rotating portion that rotates relative to the vehicle door, and is pivotally supported by the shaft portion, one end of which is locked to the mounting portion, while the other end of the rotating portion is fully opened from a predetermined door opening degree. The gist of the present invention is to provide a buffer portion that suppresses the opening operation of the rotating portion by abutting and elastically deforming the rotating portion only during the opening / closing operation up to the position.

  According to the above configuration, the buffer portion does not act until the vehicle door opens from the fully closed state and reaches a predetermined opening, and rotates together with the vehicle door only from the predetermined opening to the door fully open position. It abuts against the rotating part that moves and elastically deforms to absorb the inertial load of the vehicle door. In addition, since the buffer portion can be provided outside the door, it is not necessary to change the dimensions and arrangement of other components inside the door when the buffer portion is installed. Therefore, it is possible to provide a vehicle door check device that allows the inertial load of the vehicle door to be further suppressed at the fully open position of the vehicle door without impairing the door operability during the door opening operation.

 According to a second aspect of the present invention, in the vehicle door check device according to the first aspect, a shaft support portion interposed between the buffer portion and the shaft portion and supported by the shaft portion, and the buffer portion The gist of the present invention is to include a support member having a housing portion for housing a part of the housing.

  According to the said structure, a part of buffer part is accommodated in the aspect which a buffer part and a shaft part space apart by the axial support part. Therefore, it is possible to prevent the sliding portion from being brought into contact with the buffer portion and the shaft portion. Thereby, generation | occurrence | production of the noise by sliding resistance and it can suppress that a buffer part or a shaft part breaks by wear.

 According to a third aspect of the present invention, in the vehicle door check device according to the second aspect, the shaft portion has a projecting portion at least a portion projecting from the mounting portion, and the projecting portion serves as the support member. The gist is to support it rotatably.

  According to the said structure, since the protrusion part is provided, it becomes easy to attach or detach a buffer part and a supporting member to a shaft part.

 According to a fourth aspect of the present invention, in the vehicle door check device according to the first aspect, when the rotating portion is pivotally connected to the vehicle body at one end and the vehicle door is opened. A check arm that relatively moves in the vehicle door so as to be pulled out from the vehicle door, and is fixed in the vehicle door, and is inserted into the case through which the check arm is inserted, and the other end of the check arm. The gist further includes a stopper member that is fixed and abuts against the case and restricts the opening operation of the vehicle door at a position where the vehicle door is fully opened.

  According to the above configuration, even when the inertia load of the vehicle door is excessive and the damping of the inertia load by the buffer portion is not sufficient, the opening operation of the vehicle door can be reliably restricted at the fully open position of the door. .

  As described above in detail, according to the present invention, the vehicle door check device that enables the inertial load of the vehicle door to be further suppressed at the fully open position of the vehicle door without impairing the door operability during the door opening operation. Can be provided.

1 is a side view showing a vehicle to which a first embodiment of the present invention is applied. (A), (b) is a top view which shows operation | movement of the embodiment Exploded view of the buffer mechanism of the same embodiment The perspective view of the buffer mechanism of the same embodiment Sectional view of the buffer mechanism of the same embodiment (A), (b), (c) is a top view which shows operation | movement of the buffer mechanism of the embodiment. Sectional drawing which shows the modification of the buffer mechanism of the embodiment

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments embodying the present invention will be described in detail with reference to FIGS.

  As shown in FIG. 1, an opening 2 for getting on and off is formed in a side portion of a body 1 of the vehicle, and an edge 2 a in front of the opening 2 is arranged in parallel in the height direction of the vehicle. A door 4 is rotatably connected by a pair of door hinges 3. The door 4 opens and closes by rotating around the door hinge 3. In addition, one end of a check arm 11 that is formed in a substantially long shape constituting the door check device 10 is connected to the edge 2 a so as to be rotatable in accordance with the opening / closing direction of the door 4.

  As shown in FIGS. 2 (a) and 2 (b), the edge 2a is formed with a substantially flat mounting surface 5 that is recessed toward the inside of the vehicle, and the mounting surface 5 is made of, for example, a metal plate. Part 12 is fastened. On the other hand, the door 4 includes a door outer panel 6 that extends so as to face the outside of the vehicle and a box-shaped door inner panel 7 that is disposed on the inside of the vehicle, and an edge of the door outer panel 6 and an opening of the door inner panel 7. A substantially sealed internal space is formed by joining the ends. Note that the door 4 is opened and closed by rotating about the shaft 3 a of each door hinge 3.

  As shown in FIGS. 1 to 3, the door check device 10 includes an attachment part 12, a shaft part 21, a support member 22, a check arm 11 for a rotating part, a buffer part 23, and a case 16. As shown in FIG. 2A, the check arm 11 has one end rotatably connected to the mounting portion 12. On the other hand, the other end of the check arm 11 enters the door 4 through the wall portion 8 of the door inner panel 7 facing the mounting surface 5 behind the mounting surface 5. When the door 4 is fully closed, the check arm 11 is accommodated in the door 4 through the case 16, and when the door 4 starts to open as shown in FIG. 11 is gradually pulled out from the door 4. Thus, the relative position of the check arm 11 with respect to the case 16 uniquely corresponds to the opening / closing position (opening degree) of the door 4. Specifically, the smaller the length L of the check arm 11 pulled out from the door 4, the smaller the opening degree. Conversely, the longer the length L, the larger the opening degree.

  As shown in FIGS. 2A and 2B, the case 16 is fastened to the wall portion 8 of the door 4. The case 16 has an insertion hole (not shown) that is inserted into the check arm 11, and is inserted from the other end side of the check arm 11. In this case 16, a pair of sliding members (not shown) are attached in a pair so as to abut on the upper and lower surfaces of the check arm 11 with a predetermined load. This sliding member (not shown) slightly restricts the case 16 from moving in the longitudinal direction of the check arm 11 and slightly restricts the opening / closing position of the door 4.

  As shown in FIGS. 3 and 4, the shaft portion 21 of the mounting portion 12 has a protruding portion 21 a partially protruding from the mounting portion 12, and the protruding portion 21 a is formed in a cylindrical shape. A support member 22 and a buffer portion 23 are attached.

  As shown in FIG. 5, the support member 22 further surrounds the outer peripheral surface of the covering portion 22a (shaft support portion) provided to cover the shaft portion 21 (specifically, the protruding portion 21a) and the covering portion 22a. And an outer wall portion 22b provided on the outer wall. The lower end of the covering portion 22a and the outer wall portion 22b is connected by a bottom wall portion 22c. A housing portion 25 capable of housing a part of the buffer portion 23 is provided between the covering portion 22a and the outer wall portion 22b. In addition, in this embodiment, although the coating | coated part 22a has comprised the coverless bottomless shape which covers the protrusion part 21a whole, you may comprise the lidless shape. A part of the outer wall part 22a is provided with a communication hole 22e and a communication groove 22f through which the one end part 23b and the other end part 23c of the buffer part 23 are inserted.

  As shown in FIGS. 3 and 5, the buffer portion 23 is a coil spring formed by winding a wire such as a steel material, and is bent at the elastic portion 23 a formed of the wound portion and one end side of the elastic portion 23 a. And the other end 23c that extends substantially linearly on the other end side of the elastic portion 23a and can abut against the abutment surface 11a that is the side surface of the check arm 11. The elastic part 23 a is accommodated in the accommodating part 25. Further, the one end portion 23 b protrudes from the communication hole 22 e and is locked to the attachment hole 30 provided in the attachment portion 12. On the other hand, the other end portion 23c protrudes from the communication groove 22f and extends so as to be able to come into contact with the contact surface 11a of the check arm 11 (see FIG. 4).

  Next, the operation of the door check device 11 will be described with reference to FIG.

 As shown in FIG. 6A, when the door 4 is fully closed, the other end 23c of the buffer portion 23 is positioned as a free end at a position where the door 4 has a predetermined opening degree. Therefore, in Patent Document 1, sliding resistance is always generated in the coil spring from the time when the door is fully closed to the time when the door is fully opened, and the door opening operation becomes heavy. Until the door opening is reached, the door 4 can be opened easily.

  As shown in FIG. 6B, when the door 4 starts to open and reaches a predetermined opening, the other end 23c and the contact surface 11a of the check arm 11 come into contact with each other. Thereby, the inertial load of the door 4 is transmitted from the other end part 23c to the elastic part 23a. When the inertial load is transmitted, the elastic portion 23a is elastically deformed to accumulate elastic energy. In this way, the buffer portion 23 attenuates the inertia load of the door 4. In addition, the amount of attenuation of the inertial load of the door 4 can be adjusted by the material, the number of turns, and the thickness of the wire rod of the buffer portion 23. Further, the damping characteristic can be easily adjusted by arbitrarily adjusting the position where the other end portion 23c contacts the contact surface 11a of the check arm 11 by changing the length of the other end portion 23c of the buffer portion 23. Can be adjusted. That is, when the lever principle is applied to the present invention, when the fulcrum is the shaft portion 21, the force point and the action point can be the positions where the other end portion 23c and the contact surface 11a contact. Therefore, if the distance between the shaft portion 21 (fulcrum) and the other end 23c (power point and action point) is made longer, higher attenuation characteristics can be obtained, and the attenuation characteristics can be easily adjusted.

  As shown in FIG. 6C, when the opening operation of the door 4 further proceeds, the door 4 reaches the fully opened position. When the fully opened position is reached, the stopper member 15 and the case 16 come into contact with each other as shown in FIG.

  By the way, when the user closes the door 4 from the fully open position, the elastic energy accumulated in the elastic portion 23a is released, so that the user can easily perform the closing operation.

 Thus, the buffer part 23 does not act until the predetermined door opening is reached after the door 4 is opened, and the door 4 is positioned in a predetermined section from the predetermined door opening to the fully opened position. It only works when you do.

 Therefore, according to the present embodiment, the following effects can be obtained.

  (1) According to the above configuration, the buffer portion 23 does not act until the door 4 is opened from the fully closed state and reaches a predetermined opening, but only between the predetermined opening and the door fully opened position. It abuts against the check arm 11 that rotates together with the door 4 and elastically deforms to attenuate the inertia load of the door 4. In addition, since the buffer portion 23 can be provided outside the door, the size and arrangement of other components inside the door need not be changed when the buffer portion 23 is installed. Therefore, it is possible to provide a vehicle door check device that enables the inertial load of the door 4 to be further suppressed at the door fully opened position without impairing the door operability during the door opening operation.

  (2) According to the above configuration, the elastic portion 23 a of the buffer portion 23 is accommodated in the accommodating portion 25 provided between the covering portion 22 a and the outer wall portion 22 b of the support member 22. Therefore, it can suppress that the elastic part 23a contact | abuts with the axial part 21, and sliding resistance generate | occur | produces. Thereby, generation | occurrence | production of the noise by the elastic part 23a sliding, and it can suppress that it wears and breaks.

  (3) According to the above configuration, since the protruding portion 21 a is provided, the buffer portion 23 and the support member 22 can be easily attached to and detached from the shaft portion 21.

  (4) According to the above configuration, even when the inertia load of the door 4 is excessive and the inertia load is not sufficiently attenuated by the buffer portion 23, the opening operation of the door 4 is surely restricted at the door fully open position. Is possible.

  In addition, you may change embodiment of this invention as follows.

  -In the above-mentioned embodiment, you may provide between elastic part 23a and other end part 23c so that elastic deformation is possible. According to such a configuration, the inertial load of the door 4 can be further attenuated by bending between the elastic portion 23a and the other end portion 23c.

  In the embodiment, the support member 22 and the buffer portion 23 are attached to the check arm 11, but may be provided on the door hinge 3.

  In the embodiment, as shown in FIG. 7, the bottom portion 22 b of the attachment portion 12 is provided with a locking hole 22 h for locking the one end portion 23 b of the buffer portion 23 so that the buffer portion 23 is locked. Also good. Further, the leg portion 31 may be provided on the surface where the bottom 22b and the attachment portion 12 abut, while the attachment hole 30 may be provided in the attachment portion so as to correspond to the leg portion 31. According to such a structure, it becomes possible to assemble | attach beforehand in the state which the one end part 23b of the buffer part 23 was latched by the latching hole 22h, and the assembly | attachment to the protrusion part 21a becomes easy.

  -In above-mentioned embodiment, although the protrusion part 21a protrudes only to the upper side in FIG. 3, you may comprise so that it may protrude not only to this but the lower side. According to such a configuration, when the damping characteristic of the door 4 is desired to be enhanced, the damping characteristic can be adjusted by attaching the support member 22 and the buffer portion 23 to the lower side.

  In the embodiment, a plurality of attachment holes 30 may be provided in the attachment portion 12. According to such a configuration, it is possible to arbitrarily adjust the door opening degree at which the other end portion 23 c comes into contact with the contact surface 11 a of the check arm 11.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle body, 4 ... Door, 11 ... Check arm (rotation part), 12 ... Mounting part, 15 ... Stopper member, 16 ... Case, 20 ... Buffer part, 21 ... Shaft part, 21a ... Projection part, 22 ... Support Member, 22a ... covering portion (shaft supporting portion), 22b ... outer wall portion, 23 ... buffer portion, 23a ... elastic portion, 23b ... one end portion, 23c ... other end portion, 25 ... accommodating portion, 30 ... mounting hole, 31 ... leg Part

Claims (4)

An attachment portion having a shaft portion attached to the periphery of an opening provided in the vehicle body;
A rotating part pivotally supported by the shaft part and rotating relative to a vehicle door that opens and closes the opening;
One end is pivotally supported by the shaft portion, and one end is locked to the mounting portion, while the other end is in contact with the rotating portion only while the rotating portion opens and closes from a predetermined door opening degree to a door fully opened position. A buffer portion that suppresses the opening operation of the rotating portion by being elastically deformed in contact;
A vehicle door check device comprising:   2. The support member according to claim 1, further comprising: a support member having a shaft support portion interposed between the buffer portion and the shaft portion and pivotally supported by the shaft portion, and a storage portion for storing a part of the buffer portion. Vehicle door check device.   The vehicle door check device according to claim 2, wherein at least a part of the shaft portion has a protruding portion protruding from the mounting portion, and the protruding portion rotatably supports the support member. The rotating portion is a check arm that has one end pivotably connected to the vehicle body and relatively moves in the vehicle door so that the vehicle door is pulled out when the vehicle door is opened. And
A case in which the check arm is inserted while being fixed in the vehicle door;
The door check device according to claim 1, further comprising: a stopper member fixed to the other end of the check arm and configured to abut against the case and restrict an opening operation of the vehicle door at a position where the vehicle door is fully opened.

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