JP6006882B2 - Assist grip - Google Patents

Description

  The present invention relates to an assist grip that is held by an occupant during getting on and off or during boarding.

  For example, in Patent Document 1, a front end portion of an assist grip elongated in the front-rear direction of the vehicle is fixed to the vehicle body with a bolt, while a slide base portion is provided at the rear end portion, and the slide base portion and the vehicle body are fixed. An assist grip is disclosed in which a retainer is slidably fitted and a separate shock absorber is provided inside the rear end.

  In general, when a part of the occupant's body (for example, the head) collides with the assist grip during a vehicle side collision or the like, a pressure load is applied to the assist grip from the inside of the vehicle to the outside of the vehicle. A force in the direction of separating the front and rear end portions from each other acts.

  In such a case, in the invention of Patent Document 1, as a result of the slide base portion slidingly moving backward with respect to the retainer, the rear end portion slides backward with respect to the vehicle body, so that collision energy is absorbed. Furthermore, in the invention of Patent Document 1, since the shock absorber is crushed and deformed, collision energy is absorbed.

JP 2001-39195 A

  However, the assist grip disclosed in Patent Document 1 requires a slide base portion, a retainer, an impact absorber, and the like, which increases the number of components and causes an increase in cost.

  The present invention has been developed from such a viewpoint, and an object of the present invention is to provide an assist grip capable of reducing the cost and absorbing the collision energy.

  In order to solve the above problems, the present invention is an assist grip that is installed in a passenger compartment and gripped by an occupant, the assist grip body, and mounting seats respectively provided at both ends of the assist grip body. The mounting seat includes an insertion hole through which a fixture for fixing the assist grip body and the vehicle body is inserted, a first notch portion formed inside the insertion hole and communicating with the insertion hole, It is characterized by having.

  According to the present invention, the mounting seat is formed on the inner side of the insertion hole through which the fixing tool is inserted and has the first cutout portion communicating with the insertion hole, so that the occupant assists in the case of a vehicle side collision or the like. When it collides with the grip body, the first cutout moves to the fixture side, and the periphery of the mounting seat is deformed so as to fall inward with the first cutout side as a center. As a result, the assist grip main body is suitably bent toward the outside of the vehicle, so that collision energy can be absorbed. Therefore, it is not necessary to provide an extra part, and it is only necessary to form a notch, so that the cost can be reduced.

  The mounting seat is disposed in the insertion hole, and is formed along the outer periphery of the collar so as to overlap the collar into which the fixing tool is inserted and the first notch in the insertion direction of the fixing tool. And a restricting portion that restricts the movement of the collar.

  According to such a configuration, the mounting seat is formed along the outer periphery of the collar so as to overlap the first notch in the insertion direction of the fixing tool, and has the restricting portion that restricts the movement of the collar. The rigidity against the tensile load of the grip can be secured. That is, even when the notch portion is provided, a reduction in rigidity due to the notch portion can be reinforced by the restricting portion, and a decrease in rigidity due to the position shift of the collar can be suppressed.

  Moreover, it is preferable that the mounting seat has a second cutout portion that is formed inside the first cutout portion and has a larger cutout amount than the first cutout portion.

  According to this configuration, the mounting seat is formed on the inner side of the first cutout portion and has the second cutout portion having a larger cutout amount than the first cutout portion, so that the periphery of the mounting seat is further tilted inward. It becomes easy to deform. Therefore, the assist grip body can be easily bent to the outside of the vehicle, and the collision energy absorption performance can be enhanced. In addition, the collision energy can be further absorbed because the periphery of the second notch is crushed and deformed so as to approach the fixture.

  According to the present invention, it is possible to provide an assist grip capable of reducing the cost and absorbing the collision energy.

It is the schematic side view which looked at the vehicle interior in which the assist grip which concerns on embodiment of this invention was installed from the driver's seat side. It is a perspective view which shows an assist grip. It is the II sectional view taken on the line of FIG. It is sectional drawing which shows the state which opened the cover. It is the top view which looked at the end surface of the attachment seat of an assist grip from the normal line direction. It is a perspective view which shows the assist grip at the time of a passenger | crew collision. It is sectional drawing which shows the attachment seat periphery at the time of a passenger | crew collision.

  Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. Note that “front and rear” and “up and down” indicated by arrows in each figure indicate the front and rear direction and the vertical direction of the vehicle, and “left and right” indicate the left and right directions viewed from the driver's seat, respectively. In the following description, the inside of the arch of the assist grip is referred to as “inside”, and the outside of the arch is referred to as “outside”. In this embodiment, a case where an assist grip is installed in a passenger seat of a left-hand drive vehicle will be described as an example.

  As shown in FIG. 1, the assist grip 1 is installed along the upper edge of the side window 61 in the passenger compartment 60. The assist grip 1 is a member that is gripped by an occupant to support the body during getting on and off and during riding. The assist grip 1 is made of a resin material such as polypropylene, for example, and is molded by gas injection. In FIG. 1, reference numeral 62 indicates a passenger seat, reference numeral 63 indicates a right front door, reference numeral 64 indicates a front window, and reference numeral 65 indicates a rearview mirror.

  As shown in FIG. 2, the assist grip 1 includes an assist grip body 2 that is elongated in the front-rear direction in which the occupant places a hand, and mounting seats 3 provided at both longitudinal ends 2A and 2B of the assist grip body 2. And comprising. A downward tensile load F1 is applied to the assist grip 1 during normal use, and a pressing load F2 is applied mainly from the vehicle interior to the vehicle exterior during an occupant collision. As shown in FIG. 3, the assist grip 1 is fastened and fixed by bolts B with the mounting seat 3 abutting against the roof side rail 4 via the roof lining 5. Since the assist grip 1 has a symmetrical shape at both longitudinal ends 2A and 2B, the longitudinal end 1 (front end) 2A will be described in detail, and the longitudinal other end (rear end) 2B will be described. Is omitted.

  As shown in FIG. 2, the assist grip body 2 is formed in an arch shape (substantially U-shaped or substantially U-shaped) with the center side projecting toward the vehicle inner side from both longitudinal ends 2A and 2B. On the end side of the assist grip body 2, as shown in FIG. 3, an accommodating portion 21 that faces the head of the bolt B is formed. A cover 22 that opens or closes the accommodating portion 21 is provided outside the end portion of the assist grip body 2. As shown in FIG. 4, the cover 22 has a thin portion 23 at a continuous portion with the mounting seat 3, and is rotatable about the thin portion 23. With such a configuration, the cover 22 can be opened and the bolt B can be easily tightened.

  As shown in FIG. 3, the mounting seat 3 is formed inside the insertion hole 31 through the insertion hole 31 through which the bolt B is inserted, the collar 32 disposed in the insertion hole 31, and communicates with the insertion hole 31. A first notch 33 to be formed, a restricting part 34 formed along the outer periphery of the collar 32 so as to overlap the first notch 33 in the axial direction (insertion direction) of the bolt B, the first notch 33 and the restricting part A second notch 35 formed inside 34, a claw 36 formed outside the insertion hole 31, a pair of ribs 37 (see FIG. 5) formed on both sides of the restricting portion 34, Have In FIG. 5, notches and holes are indicated by dot hatching.

  As shown in FIG. 3, the insertion hole 31 is a circular through-hole that opens to the roof side rail 4 side. The vehicle interior side of the insertion hole 31 communicates with the accommodating portion 21. A flange 38 having a diameter smaller than that of the other part is formed at the end of the insertion hole 31 on the vehicle inner side.

  A bolt insertion hole 41 is also formed through the roof side rail 4, which is a vehicle body skeleton member, at a position corresponding to the insertion hole 31. A nut N to which the bolt B is screwed is joined to the back side of the bolt insertion hole 41 by welding. The roof side rail 4 is formed with an insertion hole 42 through which the claw portion 36 is inserted. A through hole 51 for exposing the bolt insertion hole 41 and the insertion hole 42 is formed through the roof lining 5 which is a vehicle interior material.

  As shown in FIG. 3, the collar 32 is a cylindrical member through which the shaft portion of the bolt B is inserted. The collar 32 is disposed between the collar portion 38 and the roof side rail 4.

  As shown in FIG. 3, the first notch 33 is a fragile part that is formed by notching a part of the peripheral wall of the insertion hole 31 by a predetermined length in the axial direction of the bolt B and opening to the roof side rail 4 side. . As shown in FIG. 5, the first notch 33 is formed in an arc shape along a part of the outer periphery of the insertion hole 31 and the collar 32 when viewed from the normal direction of the end face of the mounting seat 3. The dimension D1 along the tensile load direction of the first notch 33 is formed smaller than the diameter dimension D2 of the insertion hole 31. With such a configuration, it is possible to reduce a decrease in rigidity in the tensile load direction due to the first notch 33. The dimension D1 may be larger than the diameter dimension D2, or may be equivalent to the diameter dimension D2. In addition, the shock absorption performance of the assist grip 1 can be adjusted by appropriately changing the depth, opening area, and the like of the first notch 33.

  The restricting portion 34 is a wall-shaped portion that increases the rigidity against the tensile load F1 during normal use and restricts the movement (positional deviation) of the collar 32. The restricting portion 34 is provided at a position (inside the vehicle) farther from the roof side rail 4 than the first cutout portion 33. As shown in FIG. 5, the restricting portion 34 is formed in an arc shape along a part of the outer periphery of the insertion hole 31 or the collar 32 when viewed from the normal direction of the end surface of the mounting seat 3. On both sides of the insertion hole 31 and the restricting portion 34 along the tensile load direction, a rectangular hole 39 is formed so as to penetrate therethrough.

  As shown in FIG. 3, the second cutout portion 35 is a fragile portion that is formed by cutting out a predetermined length in the axial direction of the bolt B and opened to the roof side rail 4 side. The second cutout portion 35 is provided close to the inner wall portion 1 </ b> A of the assist grip 1. The second cutout portion 35 is formed by cutting out deeper than the first cutout portion 33. As shown in FIG. 5, the second notch 35 is formed in a substantially semicircular shape that is vertically long in the tensile load direction when viewed from the normal direction of the end face of the mounting seat 3. The outer center of the second cutout portion 35 communicates with the inner portion of the first cutout portion 33. The second cutout portion 35 is formed to have a larger opening area than the insertion hole 31 and the first cutout portion 33. In the present embodiment, since the second cutout portion 35 having a larger cutout amount than the first cutout portion 33 is provided, the periphery of the mounting seat 3 is more easily tilted inward as described later, and the collision energy absorption performance is improved. Can be made. That is, the shock absorption performance of the assist grip 1 can be adjusted by appropriately changing the depth, opening area, and the like of the second notch 35.

  As shown in FIG. 3, the claw portion 36 is a portion that is formed to protrude from the end face of the mounting seat 3 toward the roof side rail 4 by a predetermined length from other portions. The claw portion 36 is provided on the opposite side of the first cutout portion 33 and the second cutout portion 35 with the insertion hole 31 therebetween. In the present embodiment, the assist grip 1 is fixed to the roof side rail 4 at two points using the bolt B and the claw portion 36, but the fixing method is not limited to this.

  As shown in FIG. 5, the rib 37 is a wall-shaped portion that extends along the tensile load direction and increases the rigidity against the tensile load F <b> 1 during normal use. The ribs 37 are provided between the second notch 35 and the hole 39, respectively. In the present embodiment, the pair of ribs 37 and the restriction portion 34 form a highly rigid portion along the tensile load direction in the vicinity of the first cutout portion 33 and the second cutout portion 35.

  The assist grip 1 according to the present embodiment is basically configured as described above. Next, the function and effect will be described.

As shown in FIG. 6, when the head M1 of the occupant M collides with the center side of the assist grip body 2 during a vehicle side collision or the like, a pressing load F2 from the vehicle interior to the vehicle exterior is applied to the assist grip body 2. In addition, a force F3 (a force for moving the periphery of the mounting seat 3 outward) acts in a direction to separate the mounting seats 3 from each other.
At this time, in the present embodiment, as shown in FIG. 7, the mounting seat 3 has a first cutout portion 33 that is formed on the inner side of the insertion hole 31 and communicates with the insertion hole 31. Is moved to the bolt B or the collar 32 side, and the periphery of the mounting seat 3 is deformed so as to fall inward with the first notch 33 side as a center. As a result, as shown in FIG. 6, the assist grip body 2 is suitably bent toward the outside of the vehicle, so that the collision energy can be absorbed.

Further, in the present embodiment, as shown in FIG. 7, the mounting seat 3 has a second cutout portion 35 that is formed inside the first cutout portion 33 and has a larger cutout amount than the first cutout portion 33. The periphery of the mounting seat 3 is easily deformed so as to fall further inward. Therefore, the assist grip body 2 is easily bent toward the outside of the vehicle, and the collision energy absorption performance can be enhanced.
Furthermore, since the periphery of the second cutout portion 35 is crushed and deformed so as to approach the bolt B or the collar 32 side, collision energy can be further absorbed.
Therefore, in this embodiment, it is not necessary to provide extra parts, and it is only necessary to form the first cutout portion 33 and the second cutout portion 35, and thus the cost can be reduced.

  Furthermore, in the present embodiment, the mounting seat 3 is formed along the outer periphery of the collar 32 so as to overlap the first notch 33 in the axial direction of the bolt B, and thus has a regulating portion 34 that regulates the movement of the collar 32. The rigidity of the assist grip 1 during normal use with respect to the tensile load F1 can be ensured. That is, even when the first cutout portion 33 and the second cutout portion 35 are provided, a reduction in rigidity due to the first cutout portion 33 and the second cutout portion 35 can be reinforced by the restriction portion 34, and the collar 32. It is possible to suppress a decrease in rigidity due to the positional deviation.

  As described above, in the present embodiment, it is possible to achieve both the collision energy absorption performance at the time of a passenger collision and the securing of rigidity against the tensile load F1 during normal use.

  As mentioned above, although embodiment of this invention was described in detail with reference to drawings, this invention is not limited to this, In the range which does not deviate from the main point of invention, it can change suitably.

  In the present embodiment, the assist grip 1 is installed in the passenger seat of the left-hand drive vehicle, but may be installed in the seat of the right-hand drive vehicle or in the rear seat.

DESCRIPTION OF SYMBOLS 1 Assist grip 2 Assist grip main body 2A, 2B Longitudinal direction both ends 3 Mounting seat 31 Insertion hole 32 Collar 33 1st notch part 34 Control part 35 2nd notch part 4 Roof side rail (vehicle body)
5 roof lining 60 compartment B bolt (fixture)
N Nut F1 Tensile load F2 Pressing load M Crew

Claims (3)

An assist grip that is installed in the passenger compartment and gripped by the passenger,
The assist grip body,
Mounting seats respectively provided at both ends of the assist grip body,
The mounting seat is
An insertion hole through which a fixture for fixing the assist grip body and the vehicle body is inserted;
An assist grip, comprising: a first cutout formed inside the insertion hole and communicating with the insertion hole. The mounting seat is
A collar disposed in the insertion hole and through which the fixture is inserted;
It has a control part which is formed along the perimeter of the collar so that it may overlap with the 1st notch part in the penetration direction of the fixture, and controls the movement of the collar. Assist grip. The mounting seat is
3. The assist grip according to claim 1, further comprising a second cutout portion formed inside the first cutout portion and having a larger cutout amount than the first cutout portion.

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