JP2020111086A - Assist grip - Google Patents

Abstract

To provide an assist grip which can absorb an impact effectively with a simple structure.SOLUTION: An assist grip 10 includes a holding part 23 to be held. The assist grip 10 includes an attachment part 24 attached to a vehicle body panel 11. The assist grip 10 includes a connection part 25 which connects the holding part 23 to the attachment part 24 in a crank form. The assist grip 10 includes a restriction part 26 which restricts bending at a connection position P1 between the connection part 25 and the holding part 23.SELECTED DRAWING: Figure 1

Description

The present invention relates to an assist grip having a shock absorbing effect.

2. Description of the Related Art Conventionally, for example, an assist grip, which is located above a pillar or a door opening of a vehicle compartment of a vehicle and is held by an occupant in order to maintain a posture of the occupant when the occupant gets in and out of the vehicle or is in a riding state, is installed. Such an assist grip has a shock absorbing action of absorbing the shock by the deformation of the core material when the occupant collides.

As a structure that more effectively absorbs the energy of impact at the time of an occupant collision, the grip part of the assist grip and the mounting seat for mounting the assist grip on the vehicle body panel are divided into two parts and gripped in the direction perpendicular to the mounting seat. It is known that the parts are engaged with each other and, when an impact is applied, the engagement is released to absorb the impact (for example, refer to Patent Document 1).

JP, 2006-160075, A (Pages 4-5, Drawing 1-3).

In the above-mentioned assist grip, since the engagement between the mounting seat and the grip portion is basically disengaged by the impact applied from the direction perpendicular to the mounting seat, the impact from other directions is absorbed, or the grip portion and the mounting seat are absorbed. A separate structure is required to absorb the impact after the engagement with the is disengaged.

Further, it is not easy to control how much impact the engagement between the grip portion and the mounting seat is released, and the cost may increase due to an increase in the number of parts.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an assist grip capable of effectively absorbing an impact with a simple configuration.

The assist grip according to claim 1, wherein a gripping part to be gripped, a mounting part to be mounted on a mating member, a connecting part for connecting the gripping part and the mounting part in a crank shape, and the connecting part and the gripping part. And a restricting portion that restricts bending at a connecting position with.

The assist grip according to claim 2 is the assist grip according to claim 1, wherein the restriction portion projects from one of the grip portion and the connecting portion toward the other across the connecting position between the grip portion and the connecting portion. A protrusion is provided, and an abutting portion provided at a position facing the tip of the protrusion on the other of the grip and the connecting portion.

According to a third aspect of the present invention, in the assist grip according to the second aspect, the restriction portions are provided on both sides of the grip portion and the connecting portion in the connecting direction.

According to a fourth aspect of the present invention, in the assist grip according to the second or third aspect, the protruding portion is arranged close to a mating member to which the attachment portion is attached.

An assist grip according to claim 5 is the assist grip according to any one of claims 1 to 4, further comprising a metal core member and a resin covering member, wherein the mounting portion, the connecting portion, and the regulating portion are: The grip portion formed on the core material is formed of the core material and the covering member that covers the core material.

According to the assist grip according to claim 1, when the colliding object collides with the grip portion, the regulation portion regulates bending at the coupling position between the coupling portion and the grip portion, so that the coupling is performed with a simple configuration. It is possible to suppress the grip portion from bending from the position and to interfere with the counterpart member, and it is possible to effectively absorb the shock due to the bend of the grip portion.

According to the assist grip according to claim 2, in addition to the effect of the assist grip according to claim 1, the protruding portion extends from one of the grip portion and the connecting portion toward the other across the connecting position between the grip portion and the connecting portion. When the colliding object collides with the gripping part, the tip of the projecting part is contacted with the contacting part by providing the contacting part on the other of the gripping part and the connecting part at a position facing the tip of this projecting part. It is possible to easily suppress the bending at the connecting position of the connecting portion and the gripping portion by abutting with the simple configuration.

According to the assist grip according to claim 3, in addition to the effect of the assist grip according to claim 2, the collision object collides with the grip portion by providing the restriction portions on both sides of the grip portion and the connecting portion in the connecting direction. At this time, the tip of the protruding portion of at least one of the restricting portions easily comes into contact with the contact portion, and bending at the connecting position between the connecting portion and the gripping portion can be more reliably suppressed.

According to the assist grip according to claim 4, in addition to the effect of the assist grip according to claim 2 or 3, the collision object is collided by arranging the projecting portion in proximity to a mating member to which the mounting portion is mounted. Since the projecting portion comes into contact with the mating member from the initial stage, it is possible to further reduce the bending stroke of the grip portion at the position away from the connecting position, and to more effectively suppress the interference with the mating member.

According to the assist grip according to claim 5, in addition to the effect of the assist grip according to any one of claims 1 to 4, by forming the mounting portion, the connecting portion, and the restricting portion on a metal core material, It is not necessary to set a separate part, and shock absorption performance can be added at a low cost with a simple structure.The gripping part is formed by a core material and a covering member that covers the core material, so that when the gripping part is gripped. The touch feeling can be improved and the grip portion can be easily gripped.

(A) is a cross-sectional view of the assist grip according to the first embodiment of the present invention at a position corresponding to I-I in FIG. 2, and (b) is a cross-sectional view taken along the line I- of FIG. 2 showing a state where an impact is applied to the assist grip. It is sectional drawing of the I equivalent position. It is a perspective view which expands and shows a part of assist grip same as the above. It is a perspective view which shows the core material of an assist grip same as the above. It is a perspective view which shows the state which attached the assist grip to the partner member same as the above. It is sectional drawing which shows the state to which the impact was applied with respect to the comparative example of an assist grip. 6 is a graph showing the relationship between deceleration and stroke of the same assist grip and the comparative example shown in FIG. 5. (A) is sectional drawing which shows the assist grip of the 2nd Embodiment of this invention, (b) is sectional drawing which shows the state where the impact was applied to the assist grip.

The configuration of the first embodiment of the present invention will be described below with reference to the drawings.

In FIG. 4, 10 is an assist grip. The assist grip 10 is installed, for example, on a B pillar or an A pillar in a passenger compartment of a vehicle (an automobile), or above a door opening, and is gripped by an occupant in order to maintain a posture when the occupant gets on or off or is in a riding state. To do. In the example shown in FIG. 4, the assist grip 10 is fixed to the vehicle body panel 11 which is a mating member by a fastening structure of bolts 12 and nuts 13 which are fastening members.

The vehicle body panel 11 of this embodiment constitutes, for example, a B pillar or an A pillar of a vehicle. The vehicle body panel 11 is covered on the vehicle compartment side with a trim (not shown) that is an interior material. The vehicle body panel 11 is made of a metal plate and is pressed into a predetermined shape that forms, for example, a B pillar or an A pillar of the vehicle. The vehicle body panel 11 of the present embodiment is elongated along the vertical direction. Further, as shown in FIGS. 1A and 1B, the vehicle body panel 11 constitutes a central portion of the vehicle body panel 11, and a fixing portion 15 to which the assist grip 10 is fixed, and the fixing portion 15. With respect to the flange portion 16 which is located on the side away from the assist grip 10 and which constitutes the edge portion of the vehicle body panel 11, and a mating member connecting portion which connects the fixing portion 15 and the flange portion 16 in a crank shape. A certain panel connecting portion 17 is integrally provided.

Further, in the assist grip 10, in the present embodiment, the metal core material 20 and the synthetic resin covering member (outer) 21 that covers a part of the core material 20 are integrally formed by insert molding or the like. Is configured. The core material 20 has a plate shape formed by pressing a metal plate into a predetermined shape. Further, as shown in FIGS. 1A, 1B, 2 and 3, the assist grip 10 includes a grip portion 23 that is gripped by an occupant, and a mounting portion 24 that is mounted on the vehicle body panel 11. A connecting portion 25 that connects the grip portion 23 and the mounting portion 24 in a crank shape, and a restricting portion 26 that restricts bending at the connecting position of the connecting portion 25 and the grip portion 23 are provided.

The grip portion 23 is formed in an elongated shape. Further, in the present embodiment, the grip portion 23 has a U shape in which both ends are bent in a direction intersecting the longitudinal direction of the grip portion 23. That is, the grip portion 23 has a long grip body portion 30, and a connecting portion 25 that is continuous with both ends of the grip body portion 30 and extends in a direction intersecting the longitudinal direction of the grip body portion 30. The continuous end portions 31, 31 are integrally provided. In the present embodiment, a portion extending from the grip body portion 30 to the base end sides of the end portions 31 and 31 is formed by covering the core member 20 with the covering member 21 and is exposed from the trim to the inside of the vehicle compartment. A part extending from the tip end side of 31, 31 to the connecting part 25, the restricting part 26 and the mounting part 24 is formed only by the core material 20 and is inserted into the trim. Further, the grip portion 23 is arranged such that the thickness direction of the core material 20 is along the surface direction of the vehicle body panel 11.

The mounting portion 24 is formed so as to be continuous with the end portions 31, 31 of the grip portion 23. That is, the mounting portion 24 is connected to both ends of the grip portion 23 in the assist grip 10 by the connecting portions 25. The mounting portion 24 is located away from the grip portion 23 toward the vehicle body panel 11 side, that is, outside the vehicle. The mounting portion 24 is a seat portion formed in a planar shape. The mounting portion 24 of the present embodiment extends in a direction that is inclined with respect to the direction in which the end portions 31, 31 of the grip portion 23 extend. For example, the mounting portions 24, 24 are inclined toward the directions away from each other. A hole 33 into which the bolt 12 is inserted is opened in the mounting portion 24. The hole 33 is formed so as to penetrate the core member 20 in the thickness direction. The hole 33 is aligned with the mounting hole 34 formed in the fixed portion 15 of the vehicle body panel 11, and the bolt 12 is inserted between the hole 33 and the mounting hole 34. In the present embodiment, one mounting portion 24 is fixed to the vehicle body panel 11 on the upper side, and the other mounting portion 24 is fixed on the lower side. Therefore, the assist grip 10 of the present embodiment is arranged in a longitudinal shape along the up-down direction which is the longitudinal direction of the vehicle body panel 11.

The connecting portion 25 is connected to each of the grip portion 23 and the mounting portion 24 in a bent shape. The connecting portion 25 of the present embodiment is bent at about 90° with respect to each of the grip portion 23 and the mounting portion 24. The connecting portion 25 is formed from the grip portion 23 toward the mounting portion 24, that is, along the vehicle width direction.

In the present embodiment, the restriction portion 26 is formed between the grip portion 23 and the one coupling portion 25. In the illustrated example, the restriction portion 26 is formed between the lower end portion of the grip portion 23 and the lower coupling portion 25. Further, the restricting portions 26 are provided on both sides of the grip portion 23 and the connecting portion 25 in the connecting direction. In the illustrated example, the restricting portions 26 are formed at two upper and lower positions with respect to the lower end portion of the grip portion 23 and the lower connecting portion 25.

The restriction portion 26 includes a protruding portion 37 and a contact portion 38. The projecting portion 37 projects from one of the grip portion 23 and the connecting portion 25 toward the other across the connecting position P between the grip portion 23 and the connecting portion 25. In the present embodiment, the projecting portion 37 projects from the grip portion 23 toward the connecting portion 25. That is, the projecting portion 37 of the present embodiment is formed so as to be continuous with the grip portion 23 and is located away from the connecting portion 25 (contact portion 38).

Further, the protruding portion 37 is formed at a position protruding in the width direction with respect to one of the grip portion 23 and the connecting portion 25. The protruding portion 37 protrudes from the grip portion 23 in the thickness direction of the core member 20, that is, toward the vehicle body panel 11 side in the vehicle exterior direction.

Furthermore, the protrusion 37 is formed in a bent shape. In the present embodiment, the protrusion 37 is bent in an L shape. The projecting portion 37 integrally includes a projecting base end portion 40 and a projecting tip end portion 41. The projecting base end portion 40 projects from one of the grip portion 23 and the connecting portion 25 in a direction intersecting (orthogonal to) one of the grip portion 23 and the connecting portion 25. Further, the projecting tip portion 41 projects from the tip of the projecting base end portion 40 in a direction intersecting (orthogonal to) the projecting base end portion 40, and projects toward the other of the grip portion 23 and the connecting portion 25. In the present embodiment, the protruding base end portion 40 is connected to the grip portion 23, is bent from the side portion of the grip portion 23 toward the vehicle body panel 11 side, and the tip of the protruding tip end portion 41 is connected to the connecting portion 25 ( It opposes the contact portion 38).

The contact portion 38 is formed in a plate shape. In the present embodiment, the contact portion 38 is formed to extend in a tongue shape from the side portion of the connecting portion 25. For example, the contact portion 38 is formed substantially flush with the connecting portion 25. The contact portion 38 is close to the projecting tip 41 of the projecting portion 37, and is arranged so as to face the projecting tip 41. In the present embodiment, the contact portion 38 is located slightly away from the protruding tip portion 41.

Next, the operation of the first embodiment will be described.

As shown in FIG. 1A, in the assist grip 10 attached to the vehicle body panel 11, the grip portion 23 is gripped by an occupant when assisting the passenger to get in and out of the vehicle or in a riding state.

As shown in FIG. 1B, when a collision object A such as an occupant collides with the grip portion 23 of the assist grip 10 exposed in the passenger compartment from the passenger compartment side, the grip portion 23 is pushed to the outside of the vehicle. When the core member 20 is deformed, the protruding tip portion 41 of the protruding portion 37 of the regulating portion 26 abuts the abutting portion 38, so that the grip portion 23 bends from the connecting position P1 with the connecting portion 25 (bending deformation). Suppress).

Then, the collision object A pushes the grip portion 23 to the outside of the vehicle, whereby the assist grip 10 bends from the position of the connecting position P2 between the connecting portion 25 and the mounting portion 24 and starts to deform. Therefore, the grip portion 23 moves rearward of the vehicle body and separates rearward from the flange portion 16 of the vehicle body panel 11.

Further, the collision object A pushes the grip portion 23 toward the outside of the vehicle, so that the assist grip 10 moves to a position P3 on the opposite side of the connecting portion 25 of the restricting portion 26 located at a position away from the flange portion 16 of the vehicle body panel 11. It bends and deforms from the body panel 11 side.

By deforming at the two points of the connecting position P2 and the position P3 in this way, the assist grip 10 absorbs the impact of the collision of the colliding object A, and the grip portion 23 is located at a position away from the flange portion 16. , It is hard to interfere with the flange portion 16 of the vehicle body panel 11 even at the maximum deformation.

That is, according to the first embodiment, when the collision object A collides with the grip portion 23, the bending of the connecting portion 25 and the grip portion 23 at the connecting position P1 is restricted by the restricting portion 26. With a simple structure, it is possible to prevent the grip portion 23 from bending from this connecting position and to interfere with the vehicle body panel 11, and the bending of the grip portion 23 can effectively absorb the shock.

On the other hand, in the assist grip 10a of the comparative example (for example, an example is shown in FIG. 5) that does not include the restriction portion 26, when the colliding object A collides with the grip portion 23 from the vehicle interior side, the grip portion 23 moves to the outside of the vehicle. When the core material 20 is deformed by being pushed, the grip portion 23 is bent from the connecting position P1 with the connecting portion 25 and the deformation is increased, which may interfere with the flange portion 16 of the vehicle body panel 11. In that case, the absorption of the impact is not sufficient, and a reaction force is generated due to the interference with the vehicle body panel 11.

As shown in an example in FIG. 6, although the initial deceleration is the same in both the present embodiment and the comparative example, the deceleration is low in the comparative example from the middle period to the final stage, and energy cannot be sufficiently absorbed, The stroke of the colliding object becomes large, and the deceleration sharply rises due to the collision of the assist grip 10 with the vehicle body panel 11. On the other hand, in the present embodiment, since the energy is absorbed efficiently in the medium term, the assist grip 10 does not collide with the vehicle body panel 11 or is unlikely to collide, that is, basically, the assist grip 10 itself. Shock is absorbed only by deformation, and deceleration does not increase or does not increase easily.

In addition, the projecting portion 37 is projected from one of the gripping portion 23 and the connecting portion 25 to the other across the connecting position P1 between the gripping portion 23 and the connecting portion 25, and at a position facing the tip of the projecting portion 37. By providing the contact portion 38 on the other side of the grip portion 23 and the connecting portion 25, when the colliding object A collides with the grip portion 23, the tip of the projecting portion 37 abuts on the contact portion 38, which is, so to speak, bulky. The bending of the connecting portion 25 and the grip portion 23 at the connecting position P1 can be easily suppressed with a simple configuration.

Further, by providing the restricting portions 26 on both sides of the gripping portion 23 and the connecting portion 25 in the connecting direction, at least one of the projecting portions 37 of the restricting portions 26 is in contact with the tip of the projecting portion 37 when the colliding object A collides with the gripping portion 23. It is easy to contact the contact portion 38, and bending of the connecting portion 25 and the grip portion 23 at the connecting position P1 can be more reliably suppressed. Moreover, the range in the collision direction of the colliding object A to the gripping part 23, which can suppress the bending at the connecting position P1 by the restricting portion 26, can be expanded, and the impact absorption against the collision of the colliding object A from a wider range is possible. It is possible to exert the performance.

Further, by forming the mounting portion 24, the coupling portion 25, and the restriction portion 26 on the metal core material 20, there is no need to set separate parts, and the assist grip 10 can be provided with a shock absorbing performance at a low cost with a simple configuration ( The occupant protection performance) can be added, and the grip portion 23 is formed by the core member 20 and the covering member 21 that covers the core member 20, so that the tactile sensation when gripping the grip portion 23 is improved, and the grip portion 23 Can be easily gripped.

Next, a second embodiment will be described with reference to FIG. The same components and operations as those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted.

The restriction portion 26 is arranged such that the protruding portion 37 is close to the vehicle body panel 11 to which the attachment portion 24 is attached. In particular, in the present embodiment, the protruding portion 37 of the restriction portion 26 is arranged in contact with the vehicle body panel 11. In the example shown in FIGS. 7A and 7B, the protruding tip portion 41 of the protruding portion 37 is arranged in contact with the fixed portion 15 of the vehicle body panel 11.

Then, as shown in FIG. 7B, when the colliding object A such as an occupant collides with the grip 23 of the assist grip 10 exposed in the passenger compartment from the passenger compartment side, the grip 23 is pushed to the outside of the vehicle. By deforming the core member 20 as described above, the protruding tip end portion 41 of the protruding portion 37 of the restriction portion 26 abuts on the abutting portion 38 and abuts on the vehicle body panel 11, and the grip portion 23 is connected to the connecting portion 25. It is possible to suppress bending and deformation from the position P1.

Then, the collision object A pushes the grip portion 23 to the outside of the vehicle, whereby the assist grip 10 projects the projection portion 37 at the position of the connection position P2 between the connection portion 25 and the mounting portion 24 and the vehicle body panel 11. The tip portion 41 is used as a fulcrum to bend and deform from the position P3 on the opposite side of the connecting portion 25 of the restricting portion 26 located away from the flange portion 16 of the vehicle body panel 11 to the vehicle body panel 11 side.

By being deformed in this way, the assist grip 10 absorbs the impact of the collision of the colliding object A, and the grip portion 23 is located away from the flange portion 16, so that the flange portion of the vehicle body panel 11 can be deformed even during the maximum deformation. Hard to interfere with 16.

In the present embodiment, since the projecting portion 37 is arranged close to the vehicle body panel 11, the projecting portion 37 hits the vehicle body panel 11 at the initial stage before the collision object A collides with the assist grip 10 or before that. By making contact, the bending stroke of the grip portion 23 at the position P3 distant from the connecting position P1 can be further reduced, and the interference with the vehicle body panel 11 can be suppressed more effectively.

In addition, in each of the above-described embodiments, the restriction portion 26 is not limited to only between the grip portion 23 and one (lower side) connecting portion 25, and the restriction portion 26 between the grip portion 23 and both (upper and lower) connecting portions 25. You may provide between each.

Further, the projecting portion 37 is projected from the grip portion 23 toward the connecting portion 25, and the contact portion 38 is formed on the connecting portion 25, but the present invention is not limited to this, and the projecting portion 37 is projected from the connecting portion 25 toward the grip portion 23. Then, the contact portion 38 may be formed on the grip portion 23.

Furthermore, although the assist grip 10 is formed of two members, the core member 20 and the covering member 21, it may be formed of only one member such as metal.

INDUSTRIAL APPLICABILITY The present invention can be preferably used as an assist grip attached to a pillar of a vehicle such as an automobile.

10 Assist grip
11 Body panel, which is a mating member
20 cores
21 Covering material
23 Grip
24 Mounting part
25 connection
26 Regulatory Department
37 Projection
38 Contact part P1 connection position

Claims (5)

A gripping part to be gripped,
An attachment part that can be attached to the mating member,
A connecting portion that connects the grip portion and the mounting portion in a crank shape,
An assist grip, comprising: a restricting part that restricts bending at the connecting position of the connecting part and the gripping part. The regulatory department
A projecting portion that projects from one of the grip portion and the connecting portion toward the other across the connecting position between the grip portion and the connecting portion,
The assist grip according to claim 1, further comprising: an abutting portion provided at a position facing the tip of the projecting portion on the other side of the gripping portion and the connecting portion. The assisting grip according to claim 2, wherein the restricting portion is provided on both sides of the holding portion and the connecting portion in the connecting direction. The assist grip according to claim 2 or 3, wherein the projecting portion is arranged close to a mating member to which the mounting portion is mounted. A metal core,
With a resin covering member,
The attaching portion, the connecting portion, and the regulating portion are formed on the core material,
The assist grip according to any one of claims 1 to 4, wherein the grip portion is formed by the core material and the covering member that covers the core material.

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