JP5771038B2 - Assist grip device - Google Patents

Description

  The present invention is, for example, a retractable assist grip device that is attached to a roof side portion in a vehicle interior of an automobile and stores the grip by rotating it from a use position protruding into the vehicle compartment to a storage position along the vehicle body panel when not in use. About.

  As this type of assist grip device, for example, Patent Document 1 includes a long U-shaped grip having legs at both ends in the longitudinal direction and a support piece for pivotally supporting the leg of the grip. A device having a pair of brackets is disclosed. Each of the leg portions of the grip is formed with a recess for receiving the bracket support piece when the grip is in the retracted position, and the grip is retracted from the use position side in the recess of one leg portion. A torsion spring for biasing to the position side is provided, and a viscous damper using a viscous material such as silicone oil is provided on the concave side of the other leg.

  The viscous damper includes a bottomed cylindrical housing, an output shaft inserted into the housing, a rotor body that is inserted into the housing and forms a rotor with the output shaft, and a cap that closes the ceiling of the housing. And an O-ring that seals between the housing and the output shaft, and an O-ring that seals between the output shaft and the cap. And the viscous body is enclosed with the filling part in the housing sealed with the O-ring.

  The assist grip device configured as described above is configured such that when the user releases his / her hand from the grip when not in use, the grip is returned from the use position to the retracted position by the spring force of the torsion spring. At this time, a rotational resistance is generated between the grip and the bracket by the viscous damper, whereby the rotational speed of the grip is attenuated to improve the feeling of use.

JP 2002-21902 (paragraphs 0014, columns 0024 to 0031, FIGS. 1 to 4)

  However, since the viscous damper requires a sealing structure that encloses the viscous material as described above, the number of parts is large and the assembling work becomes complicated. As a result, the manufacturing cost of the viscous damper, and hence the assist grip device provided with the viscous damper, increases.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a retractable assist grip device having a damper with a small number of parts and easy assembly work.

According to a first aspect of the present invention, there is provided a long grip having legs at both ends in the longitudinal direction, and a pair of mounting seats each having a bearing projection that rotatably supports the legs with an axis. When the grip is rotated between the retracted position and the use position with the mounting seat fixed to the retractable assist grip device, and the grips are in the retracted positions on both the legs. A receiving recess is formed in the surface facing the fixed body to receive the bearing projection, and the grip is biased from the use position side to the storage position side on the receiving recess side of one leg. There is provided a biasing means, and the other leg has an accommodating recess side, and when the grip is returned from the use position to the retracted position by the biasing force of the biasing means, a rotation resistance is provided between the grip and the mounting seat. To reduce the rotational speed of the grip A damper mechanism is provided, and the damper mechanism is provided on either the grip or the mounting seat, and is elastically formed on the shaft and formed with a plurality of protrusions at different positions on the outer peripheral surface at least in the circumferential direction. The member is provided on either the grip or the mounting seat, and does not come into contact with the plurality of protrusions at the use position and the storage position of the grip, and when the grip returns from the use position to the storage position, It comprises deformation means for generating the rotational resistance by sequentially abutting against a plurality of protrusions and elastically deforming the plurality of protrusions. Here, the “accommodating concave portion side” means not only the accommodating concave portion but also includes, for example, a case where the grip rotates and is positioned outside the accommodating concave portion.

  According to a second invention, in the first invention, the outer peripheral surface of the elastic member is brought into contact with the deformation means when the grip returns from the use position to the storage position by the urging force of the urging means. Further, a stopper for restricting the rotation amount of the grip is further formed so that the grip does not collide with the mounting seat.

  According to the first invention, when not in use, the grip is returned from the use position to the storage position by the urging force of the urging means provided on the storage recess side of one leg, and the storage recess side of the other leg is A retractable assist that causes a rotational resistance between the grip and the mounting seat by the deformation means of the damper mechanism provided on the elastic member deforming the plurality of protrusions of the elastic member, thereby reducing the rotational speed of the grip A grip device can be realized. Here, since the damper mechanism is composed of only the elastic member and the deformation means, the number of parts is smaller than that of the conventional viscous damper, and the assembling work is easy. Therefore, a retractable assist grip device having a damper with a small number of parts and easy assembly work can be provided at a low cost.

  According to the second invention, since the rotation amount of the grip is regulated by the deforming means and the stopper, the grip and the mounting seat are moved when the grip returns from the use position to the retracted position by the biasing force of the biasing means. It is possible to prevent a hitting sound from occurring due to a collision.

It is a front view of the assist grip device according to Embodiment 1 when the grip is in the retracted position. It is sectional drawing in the II-II line of FIG. It is sectional drawing in the III-III line of FIG. It is sectional drawing in the IV-IV line of FIG. It is a disassembled perspective view of the leg part by the side in which the damper mechanism was provided. It is a figure for demonstrating the effect of a damper mechanism when a grip returns from a use position to a storing position. FIG. 4 is a view corresponding to FIG. 3 of the assist grip device according to the second embodiment. It is a figure which shows the modification of the processus | protrusion of an elastic member.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiment is merely exemplary in nature.
Embodiment 1
1 is a front view of an assist grip device 1 according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1, and FIG. 3 is a cross-sectional view taken along line III-III in FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. The assist grip device 1 is attached to a vehicle body panel P such as a roof side portion of an automobile, for example, and the vehicle interior panel P from a use position (see a two-dot chain line in FIG. 3) that protrudes the grip 3 into the vehicle interior when not in use. Is a retractable assist grip device that is rotated and stored in a storage position (see a solid line in FIGS. 2 and 3).

  The assist grip device 1 includes a grip 3 for a user to hold and a pair of mounting seats 5 for mounting the grip 3 to a vehicle body panel P as a fixed body.

  The grip 3 is a long, substantially U-shaped member having a long grip portion 31 and a pair of leg portions 33 curved in the same direction from both ends of the grip portion 31. The grip 3 is made of a resin material such as polypropylene and is manufactured by gas injection molding of the resin material. A cavity 35 is formed in the grip 3 thus manufactured (see FIG. 4). Thereby, the weight reduction and cost reduction of the grip 3 are implement | achieved. The cavity 35 is shown only in FIG. 4 and is omitted for convenience in other drawings.

  As shown in FIGS. 2 to 5, each leg portion 33 has a front end side of the grip 3 (opening on the rear surface of the grip 3 (the surface facing the vehicle body panel P when the grip 3 is in the retracted position)). That is, an accommodation recess 331 is formed that is cut out from the lower side of FIGS. 2 and 3 toward the gripping portion 31 (that is, the upper side of FIGS. 2 and 3). FIG. 5 is an exploded perspective view of the leg 33 on the side where a damper mechanism 9 described later is provided.

  Each receiving recess 331 is formed to receive a bearing projection 53 of each mounting seat 5 described later when the grip 3 is in the retracted position, and includes an inner side surface 331a on the center side of the grip 3 and the inner side surface. 331a and the outer surface 331b facing the longitudinal direction of the grip 3 (hereinafter simply referred to as the longitudinal direction), the distal side surface 331c and the proximal side surface 331d facing each other between the inner surface 331a and the outer surface 331b, and these side surfaces 331a, 331b, 331c, 331d and a bottom surface 331e facing the vehicle body panel P when the grip 3 is in the retracted position.

  A bottomed cylindrical non-through hole 331f for inserting a support shaft 55, which will be described later, is formed on the inner side surface 331a of each receiving recess 331, while the outer surface 331b of each receiving recess 331 is not A through hole 331g for inserting the support shaft 55 is formed coaxially with the through hole 331f.

  As shown in FIG. 2, one end of a torsion coil spring 7 to be described later is locked to the opening end portion of the accommodation recess 331 on the distal end side of one leg portion 33 (that is, the portion corresponding to the distal end side surface 331c). A notch 331h is provided.

  On the bottom surface 331e of the housing recess 331 in the other leg 33, as shown in FIG. 3, a fitting projection 331i having a rectangular cross section to be fitted into a fitting groove 913 of the elastic member 91 of the damper mechanism 9 described later is described later. Projecting toward the support shaft 55.

  Each mounting seat 5 is made of a resin material such as polypropylene. Each mounting seat 5 includes a rectangular flat plate portion 51 and a bearing protrusion 53 that protrudes from the flat plate portion 51 toward the grip 3 as shown in FIGS.

  The bearing protrusion 53 includes a pair of opposing walls 531 that face each other in the longitudinal direction, and a connection wall 533 that connects the pair of opposing walls 531 on the grip portion 31 side of the grip 3. Thereby, the bearing protrusion 53 is substantially U-shaped.

  Both opposing walls 531 are provided with shaft holes 531a on the same axis. Thus, in each of the leg portions 33, the columnar support shaft 55 is fitted into the non-through hole 331f from the through hole 331g through the shaft hole 531a. As a result, the grip 3 (both leg portions 33) is pivotally supported by both mounting seats 5 so as to be rotatable. Here, the end of the support shaft 55 on the side of the through hole 331 g is not illustrated, but has an uneven surface, and the unevenness functions as a retaining shaft for the support shaft 55.

  On the outer surface of each facing wall 531 (the surface on each side surface forming the housing recess 331), a bulging portion 531b in which the peripheral edge portion of the shaft hole 531a bulges in the longitudinal direction is formed. The bulging portion 531b of one opposing wall 531 is in contact with the inner side surface 331a, and the bulging portion 531b of the other opposing wall 531 is in contact with the outer side surface 331b. This prevents backlash in the longitudinal direction between the grip 3 and the mounting seat 5.

  At one end of the flat plate portion 51 (the lower end of FIGS. 2 and 3), a protrusion 511 having a substantially right-angled cross section that protrudes toward the support shaft 55 is provided. When the grip 3 is located at the retracted position, the protrusion 511 on the other leg 33 side and the fitting protrusion 331 i face each other via the support shaft 55.

  The front side (grip 3 side) and the back side (vehicle body panel P side) are penetrated on the side opposite to the protrusion 511 (that is, the upper side in FIGS. 2 and 3) across the connecting wall 533 of the flat plate portion 51. An insertion hole 513 is formed, and a pair of flexible locking pieces 57 each projecting toward the vehicle body panel P and having a locking claw 571 at the tip thereof are arranged to face each other with a gap therebetween. ing.

  The pair of flexible locking pieces 57 is for attaching and fixing the mounting seat 5 to the vehicle body panel P with the lock member 59.

  The lock member 59 includes a flat lid portion 591 and a projection portion 593 that protrudes from the lid portion 591 and has a claw portion 593a at the tip.

  Here, the method of attaching and fixing the mounting seat 5 to the vehicle body panel P will be specifically described. A pair of flexible locking pieces 57 are inserted into the locking holes of the vehicle body panel P, and in this state, the lock member 59 is fixed. The protruding portion 593 is located on the vehicle body side of both the flexible locking pieces 57 with respect to the gap between the flexible locking pieces 57 from the grip 3 side (that is, on the right side in FIGS. 2 and 3). Insert until protruding. Thereby, in a state where the bending of the two flexible locking pieces 57 toward each other is restricted by the protruding portion 593 of the lock member 59 between the two flexible locking pieces 57, the both flexible locking pieces The locking claw 571 of the piece 57 is locked to the peripheral edge of the locking hole of the vehicle body panel P, whereby the mounting seat 5 is mounted and fixed to the vehicle body panel P. In the state where the mounting seat 5 is mounted and fixed to the vehicle body panel P, the insertion hole 513 is covered with the lid portion 591 of the lock member 59. Further, the claw portion 593a of the lock member 59 protrudes toward the vehicle body side, and the claw portion 593a and the engagement claw 571 of the both flexible engagement pieces 57 are engaged, so that the lock member 59 does not come off. It has become.

  Thus, a torsion coil spring 7 as an urging means for urging the grip 3 from the use position side to the storage position side is provided on the accommodation recess 331 side of the one leg portion 33 of the assist grip device 1. When the grip 3 is returned from the use position to the retracted position by the spring force of the torsion coil spring 7, a rotational resistance is generated between the grip 3 and the mounting seat 5 on the housing recess 331 side of the leg 33. A damper mechanism 9 that attenuates the rotational speed of the grip 3 is provided.

  As shown in FIG. 2, the torsion coil spring 7 is extrapolated to the support shaft 55 and has one end locked to the notch 331 h and the other end to one opposing wall 531 of the bearing projection 53. Mounting is fixed. The torsion coil spring 7 constantly urges the grip 3 from the use position side to the retracted position side (that is, clockwise in FIGS. 2 and 3).

  As shown in FIGS. 3 to 5, the damper mechanism 9 includes an elastic member 91 made of an elastomer such as soft plastic and a protrusion 511 of the mounting seat 5 on the other leg 33 side. This protrusion 511 constitutes a deformation means.

  The elastic member 91 has a substantially cylindrical shape in which a through hole 911 is formed in a substantially central portion. The elastic member 91 is extrapolated from the through hole 911 to the support shaft 55.

  A fitting groove 913 is formed on the outer peripheral surface of the elastic member 91, and the fitting protrusion 331 i of the grip 3 is fitted into the fitting groove 913. Here, the elastic member 91 is fixed to the grip 3 by, for example, bonding the fitting protrusion 331i and the fitting groove 913 so that the fitting protrusion 331i and the fitting groove 913 are not reliably released. Also good. Thus, the elastic member 91 is provided on the grip 3 and rotates integrally with the grip 3 when the grip 3 rotates between the use position and the storage position as will be described later. Yes.

  Further, on the outer peripheral surface of the elastic member 91, when the grip 3 is located at the retracted position, on the opposite side of the connecting wall 533 across the protrusion 511 (that is, below the protrusion 511 in FIG. 3). A plurality of tongue-like protrusions 915 are formed in the position. The plurality of protrusions 915 are located at different positions in the circumferential direction of the elastic member 91 (hereinafter also simply referred to as the circumferential direction) so as to be easily elastically deformed when coming into contact with the protrusion 511 of the mounting seat 5 as will be described later. They are arranged at a predetermined interval.

  Further, a stopper 917 is formed on the outer peripheral surface of the elastic member 91 so as to come into contact with the protrusion 511 from the connecting wall 533 side (that is, the upper side in FIG. 3) when the grip 3 is located at the retracted position. . The stopper 917 is thicker in the circumferential direction than the protrusions 915, and prevents the grip 3 from colliding with the mounting seat 5 when the grip 3 returns from the use position to the retracted position as will be described later. It has a function to regulate the amount of rotation.

  The assist grip device 1 is configured as described above. Next, the function and effect of the assist grip device 1 will be described with reference to FIGS.

  When using the assist grip device 1, the user grasps the grip portion 31 of the grip 3 and pulls the grip 3 from the retracted position along the vehicle body panel P (shown by a solid line in FIG. 3). Against this, it is turned to the vehicle interior side (that is, counterclockwise in FIG. 3) to project into the vehicle interior. When the grip 3 is rotated to the position indicated by the two-dot chain line in FIG. 3, the opening peripheral edge portion 331 j of each leg portion 33 comes into contact with the flat plate portion 51 of the mounting seat 5, and the grip 3 is further rotated. Can not be. This position is a use position of the assist grip device 1. In this use position, the plurality of protrusions 915 of the elastic member 91 are located closer to the connecting wall 533 (that is, the upper side in FIG. 3) than the protrusion 511 and are not in contact with the protrusion 511.

  When the user removes his / her hand from the grip 3 when the assist grip device 1 is not used, the grip 3 is rotated from the use position side to the storage position side by the spring force of the torsion coil spring 7. Here, the positions of the plurality of protrusions 915 of the elastic member 91 are displaced to the opposite side of the connecting wall 533 across the protrusion 511 (that is, the lower side of the protrusion 511 in FIG. 3). At this time, as shown in FIG. 6, the plurality of protrusions 915 of the elastic member 91 are sequentially brought into contact with the protrusions 511 of the mounting seat 5 and elastically deformed (tilted), thereby causing a rotational resistance and causing the grip 3 to move. The rotation speed is attenuated. Thereby, the usability of the assist grip device 1 is improved. Then, the stopper 917 of the elastic member 91 comes into contact with the protrusion 511, the rotation of the grip 3 is stopped, and the grip 3 returns to the retracted position.

  Here, since the damper mechanism 9 of the assist grip apparatus 1 is composed of only the elastic member 91 and the protrusion 511, the number of parts is smaller than that of the conventional viscous damper, and the assembling work is easy. Accordingly, it is possible to obtain a retractable assist grip device that is less expensive than the conventional assist grip device.

  Further, since the rotation of the grip 3 beyond the storage position is prevented by the stopper 917 and the protrusion 511 of the elastic member 91, the grip 3 is attached to the mounting seat when the grip 3 returns from the use position to the storage position. It is possible to prevent the hitting sound from colliding with 5.

  Further, since the mounting seat 5 on the side where the torsion coil spring 7 is provided and the mounting seat 5 on the side where the damper mechanism 9 is provided have the same shape and are shared, both mounting seats 5 are manufactured with a single mold. As a result, the manufacturing cost of the mounting seat 5 can be reduced.

In addition, when the grip 3 is located at the use position and the storage position, the protrusion 915 of the elastic member 91 and the protrusion 511 of the mounting seat 5 are not in contact with each other, and only when the grip 3 is rotated. Since the protrusion 915 of the elastic member 91 and the protrusion 511 of the mounting seat 5 are in contact with each other and the protrusion 915 of the elastic member 91 is deformed, it is difficult for the protrusion 915 of the elastic member 91 to be deformed. It is possible to obtain a stable damper effect in which a constant rotational resistance is generated over a long period of time.
<< Embodiment 2 >>
Next, an assist grip device 101 according to Embodiment 2 of the present invention will be described.

  As shown in FIG. 7, the assist grip device 101 according to the second embodiment is characterized in that the elastic member of the damper mechanism is provided not on the grip but on the mounting seat, and the deformation means is provided on the grip instead of the mounting seat. Different from Form 1. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted as appropriate.

  Each mounting seat 105 includes a flat plate portion 51 and a bearing projection 53 as in the first embodiment. A fitting projection 1051a having a rectangular cross section protruding toward the support shaft 55 is provided at one end of the flat plate portion 51 (the lower end of FIG. 7). The fitting protrusion 1051a of one mounting seat 105 is fitted in the fitting groove 913 of the elastic member 1091. Here, the elastic member 1091 is fixed to the mounting seat 105 by, for example, bonding the fitting protrusion 1051a and the fitting groove 913 so that the engagement between the fitting protrusion 1051a and the fitting groove 913 is not reliably released. May be. Thus, the elastic member 1091 is provided on the mounting seat 105. Therefore, in the present assist grip device 101, unlike the first embodiment, the elastic member 1091 does not rotate when the grip 3 rotates between the use position and the storage position.

  On the bottom surface 331e of the housing recess 331 in the leg 33 on the side where the damper mechanism 109 is provided, a protrusion 1093 having a right-angled triangular section protrudes toward the support shaft 55, and the protrusion 1093 has a grip. When 3 is in the retracted position, it faces the fitting protrusion 1051a via the support shaft 55. Therefore, in the present assist grip device 101, the grip 3 and the protrusion 1093 are integrally rotated.

  The elastic member 1091 is positioned on the outer peripheral surface of the elastic member 1091 on the opposite side of the connecting wall 533 across the protrusion 1093 when the grip 3 is in the retracted position (ie, on the lower side of the protrusion 1093 in FIG. 7). A plurality of protrusions 915 are formed in the portion.

  Further, a stopper 917 is formed on the outer peripheral surface of the elastic member 91 so as to come into contact with the protrusion 1093 from the connection wall 533 side (that is, the upper side in FIG. 7) when the grip 3 is located at the storage position. .

The assist grip device 101 is configured as described above. According to this configuration, in the use position, the protrusion 1093 moves the fitting protrusion 1051a from the position facing the fitting protrusion 1051a (position shown in FIG. 7). It is displaced to the side of the vehicle body panel P on the opposite side of the connecting wall 533 (that is, lower right in FIG. 7), and is closer to the body panel P side (that is, the right side in FIG. 7) than the plurality of protrusions 915 of the elastic member 1091 Will be located. When the grip 3 is rotated from the use position side to the storage position side when not in use, the position of the protrusion 1093 is displaced from the plurality of protrusions 915 of the elastic member 1091 to the connection wall 533 side (upper side in FIG. 7). . At this time, the protrusions 1093 sequentially contact the plurality of protrusions 915 of the elastic member 91 to elastically deform (tilt) the plurality of protrusions 915, thereby causing a rotation resistance and reducing the rotation speed of the grip 3. To do. Thereby, the usability of the assist grip device 101 is improved. Then, the protrusion 1093 comes into contact with the stopper 917 of the elastic member 1091 so that the rotation of the grip 3 is stopped and the grip 3 returns to the retracted position. Therefore, the same effect as that of the first embodiment can be obtained by the assist grip device 101 as well.
<< Other Embodiments >>
The present invention may be configured as follows with respect to the embodiment.

  That is, the shape and arrangement of the plurality of protrusions 915 of the elastic members 91 and 1091 are not limited to the above, and for example, a plurality of conical protrusions 915 may be provided in a sword shape as shown in FIG.

  Further, rubber or silicon may be employed as the material of the elastic members 91 and 1091.

  INDUSTRIAL APPLICABILITY The present invention is useful in that a retractable assist grip device having a damper that has a small number of parts and can be easily assembled can be provided at a low cost.

DESCRIPTION OF SYMBOLS 1,101 Assist grip apparatus 3 Grip 33 Leg part 331 Receiving recessed part 5,105 Mounting seat 51 Flat plate part 511 Protrusion part (deformation means provided in the mounting seat)
53 Bearing projection 55 Support shaft 7 Torsion coil spring (biasing means)
9, 109 Damper mechanism 91, 1091 Elastic member 915 Projection 917 Stopper 1093 Projection (deformation means provided on grip)
P Body panel (fixed body)

Claims (2)

An elongated grip (3) having legs (33) at both longitudinal ends;
A pair of mounting seats (5, 105) each having a bearing projection (53) that rotatably supports each leg (33) by a shaft (55);
A retractable assist grip device in which the grip (3) is rotatable between a retracted position and a use position in a state where the mounting seat (5, 105) is fixed to a fixed body (P),
Each of the leg portions (33) has an accommodating recess (331) that opens to a surface facing the fixed body (P) when the grip (3) is in the retracted position and accommodates the bearing protrusion (53). Formed,
A biasing means (7) for biasing the grip (3) from the use position side to the storage position side is provided on the housing recess (331) side of the one leg portion (33),
When the grip (3) is returned from the use position to the retracted position by the biasing force of the biasing means (7), the grip (3) and the grip (3) are placed on the housing recess (331) side of the other leg (33). A damper mechanism (9,109) is provided that generates a rotational resistance between the mounting seat (5,105) and attenuates the rotational speed of the grip (3),
The damper mechanism (9,109) is provided on any one of the grip (3) and the mounting seat (5,105), is extrapolated to the shaft (55), and a plurality of protrusions (915) are at least in the circumferential direction of the outer peripheral surface The elastic member (91,1091) formed at different positions of the grip (3) and the mounting seat (5,105) are provided on the other side, and the grip (3) is used at the use position and the storage position. When the grip (3) returns from the use position to the retracted position without coming into contact with the protrusion (915), the plurality of protrusions (915) are sequentially contacted to elastically deform the plurality of protrusions (915). An assist grip device comprising deformation means (511, 1093) for generating the rotation resistance. The assist grip device according to claim 1,
On the outer peripheral surface of the elastic member (91,1091), when the grip (3) is returned from the use position to the retracted position by the urging force of the urging means (7), the deformation means (511, 1093) and An assist grip device further comprising a stopper (917) for restricting the amount of rotation of the grip (3) so that the grip (3) does not collide with the mounting seat (5) by contact. .

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