JP2024053640A - Vehicular cushioning component - Google Patents

Abstract

To provide a versatile vehicular cushioning component which can be attached to multiple kinds of projections arranged in an interior member of a vehicle.SOLUTION: A vehicular cushioning component 1 is attached to a projection which is arranged to protrude toward a facing member in an interior member of a vehicle. The vehicular cushioning component includes: a top plate 11 which is arranged between the projection and the facing member while the vehicular cushioning component is attached to the projection of the interior member; an elastic protrusion 31 which elastically sandwiches a planar rib that is a projection from both sides in a plate thickness direction to be capable of holding the rib; and an elastic protrusion 32 which elastically presses a cylindrical wall of a boss that is a cylindrical projection from at least one side in a thickness direction of the wall to be capable of holding the boss.SELECTED DRAWING: Figure 3

Description

The present invention relates to shock-absorbing parts for vehicles.

Conventionally, vehicle doors are configured so that the door trim, which is an interior component, faces the door inner panel on the vehicle exterior. The door trim is provided with a protruding portion that protrudes toward the door inner panel to maintain a space between the door trim and the door inner panel. With such vehicle doors, there is a problem in that abnormal noises such as hitting sounds and rubbing sounds are generated as the protruding portion on the door trim side and the door inner panel repeatedly come into contact, separate, and rub against each other.

One possible solution to the above problem is to attach a nonwoven fabric to the protruding portion on the door trim side. In this case, the nonwoven fabric functions as a buffer between the door trim and the door inner panel. However, the solution of using nonwoven fabric requires that the release paper that is previously applied to the adhesive surface of the nonwoven fabric be peeled off before attaching the nonwoven fabric to the protruding portion. For this reason, this solution is disadvantageous in that the work of attaching the nonwoven fabric is time-consuming and that it is costly to dispose of the unnecessary release paper after it is peeled off from the nonwoven fabric.

The following Patent Document 1 discloses a vehicle shock absorbing part that is interposed between the door trim and the door inner panel. This shock absorbing part has a cap shape that is attached to the protruding part on the door trim side to prevent the protruding part on the door trim side from contacting the door inner panel. This shock absorbing part is advantageous in that it can be easily attached to the protruding part on the door trim side and does not generate unnecessary materials such as release paper.

JP 2017-19489 A

However, in Patent Document 1, two types of cushioning parts are prepared: one that is attached to a cylindrical protrusion called a boss, and one that is attached to a plate-shaped protrusion called a rib. In this case, the cushioning parts for the boss and the cushioning parts for the rib have different structures, so each cushioning part is a dedicated part used only for the respective protrusion. Therefore, it is necessary to prepare a cushioning part for each type of protrusion, which causes problems such as high costs for the cushioning parts and the need for work to use them differently. Furthermore, such problems are not limited to cushioning parts attached to protrusions provided on door trim, but can also occur in cushioning parts attached to protrusions provided on interior members other than the door trim in a vehicle. Therefore, when designing this type of cushioning part, it is desirable to develop a highly versatile cushioning part that can be used for multiple types of protrusions.

The present invention was made in consideration of these problems, and aims to provide a versatile vehicle cushioning component that can be attached to multiple types of protrusions provided on the interior components of a vehicle.

One aspect of the present invention is
A vehicle cushioning component that is attached to a protruding portion provided on an interior member of a vehicle so as to protrude toward an opposing member,
a buffer portion interposed between the protruding portion and the opposing member in a state where the buffer portion is attached to the protruding portion of the interior member;
a first holding portion capable of elastically sandwiching and holding the flat rib, which is the protruding portion, from both sides in a plate thickness direction;
a second holding portion that is capable of holding the cylindrical boss as the protruding portion by elastically pressing the cylindrical wall of the boss from at least one side in a wall thickness direction;
A vehicle shock absorbing part comprising:
It is in.

The vehicle cushioning part of the above-mentioned aspect is configured so that, when attached to the protruding portion of the interior member, the cushioning portion is interposed between the protruding portion and the opposing member. Therefore, the cushioning portion functions to absorb the vibrations of the protruding portion and the opposing member, respectively, and suppress the generation of abnormal noise. In contrast, the first retaining portion and the second retaining portion are used to attach the vehicle cushioning part to the protruding portion of the interior member.

When the protruding portion is a flat rib, the first retaining portion can elastically clamp and hold the rib from both sides in the plate thickness direction. On the other hand, when the protruding portion is a cylindrical boss, the second retaining portion can elastically press and hold the cylindrical wall of the boss from at least one side in the wall thickness direction. In this way, by providing both the first retaining portion and the second retaining portion on the vehicle cushioning component, the vehicle cushioning component can be used for attachment to both flat ribs and cylindrical bosses.

As described above, the above-mentioned aspect makes it possible to provide a highly versatile vehicle cushioning component that can be attached to multiple types of protrusions provided on the interior components of a vehicle.

1 is a cross-sectional view of a vehicle door according to a first embodiment. 1 is a perspective view of a vehicle shock absorber component according to a first embodiment, viewed obliquely from above; FIG. 3 is a perspective view of the vehicle shock absorber component of FIG. 2 as viewed obliquely from below. 3 is a bottom view of the vehicle shock absorber component of FIG. 2 as viewed from below. FIG. 3 is a perspective view showing the vehicle shock absorber component of FIG. 2 being attached to a rib, as viewed obliquely from above; FIG. FIG. 6 is a bottom view of the vehicle shock absorber component of FIG. 5 viewed from below. 3 is a perspective view showing the vehicle shock absorber component of FIG. 2 being attached to a boss, as viewed obliquely from above; FIG. FIG. 8 is a bottom view of the vehicle shock absorber component of FIG. 7 viewed from below. FIG. 11 is a bottom view of the vehicle shock absorber component of the second embodiment, as viewed from below. FIG. 11 is a bottom view of the vehicle shock absorber component of the third embodiment, as viewed from below. FIG. 13 is a bottom view of the vehicle shock absorber component of the fourth embodiment, as viewed from below.

Preferred embodiments of the above aspects are described below.

The above-mentioned vehicle cushioning part includes a retaining block portion provided in a block shape on the back side of the cushioning portion, and the retaining block portion is provided with an accommodation groove that extends linearly in a predetermined direction so as to be able to accommodate the rib, and an elastic protrusion that protrudes from the wall surface of the accommodation groove in the groove width direction, and it is preferable that the first retaining portion is constituted by the elastic protrusion.

With this vehicle shock absorber, the rib can be inserted into a storage groove provided in the retaining block on the back side of the shock absorber, and the rib can be elastically held by the elastic protrusion protruding from the wall of the storage groove. This makes it possible to attach the vehicle shock absorber to the rib by a simple one-touch operation of inserting the rib into the storage groove of the retaining block, using a retaining block with a simple structure.

In the above-mentioned vehicle cushioning component, it is preferable that the elastic protrusions are provided on both side walls of the accommodation groove in the groove width direction so as to be arranged alternately in the above-mentioned predetermined direction.

With this vehicle shock absorber, the elastic protrusions are arranged alternately (i.e., staggered) on one wall surface and the other wall surface in a specific direction in which the accommodation groove extends, thereby keeping the number of elastic protrusions to a minimum and elastically biasing the rib roughly evenly in the plate thickness direction to reduce rattling.

The above-mentioned vehicle cushioning part has a peripheral wall that forms a cap shape together with the cushioning part and surrounds the holding block part, and between the peripheral wall and the holding block part, there is provided an accommodation space for accommodating the tubular wall of the boss, and a second elastic protrusion that protrudes from at least one of the peripheral wall and the holding block part into the accommodation space when the elastic protrusion is the first elastic protrusion, and it is preferable that the second holding part is constituted by the second elastic protrusion.

With this vehicle shock absorber, the cylindrical wall of the boss can be elastically held by the second elastic protrusion that protrudes from at least one of the peripheral wall and the holding block part into the storage space by inserting the cylindrical wall of the boss into the storage space provided between the holding block part on the back side of the shock absorber. This makes it possible to attach the vehicle shock absorber to the boss with a simple one-touch operation of inserting the cylindrical wall of the boss into the storage space between the peripheral wall and the holding block part, which have a simple structure.

In the above-mentioned vehicle cushioning component, it is preferable that the peripheral wall has an insertion opening formed by opening a portion that overlaps with the storage groove of the holding block portion in the predetermined direction.

With this vehicle shock absorber, by providing an insertion opening in the peripheral wall, when the rib length of the rib exceeds the outer diameter of the peripheral wall, the rib can be accommodated in the accommodation groove and the end of the rib can be inserted into the insertion opening in the peripheral wall for installation. Therefore, the vehicle shock absorber can be attached to the rib regardless of the rib length.

The vehicle cushioning part described above has a peripheral wall that forms a cap shape together with the cushioning portion, and the peripheral wall is configured so that its outer diameter is less than the rib length of the rib and its inner diameter is greater than the outer diameter of the boss, and the peripheral wall is provided with an insertion opening that allows the rib to be inserted therethrough, a first elastic protrusion that protrudes from the wall surface in the width direction of the insertion opening, and a second elastic protrusion that protrudes from the inner peripheral surface, and it is preferable that the first elastic protrusion constitutes the first retaining portion and the second elastic protrusion constitutes the second retaining portion.

This vehicle cushioning component allows the rib to be elastically held by the first elastic protrusion provided at the insertion opening of the peripheral wall, while the tubular wall of the boss can be elastically held by the second elastic protrusion provided on the inner peripheral surface of the peripheral wall. This is effective in simplifying the structure of the first and second holding parts as much as possible when the outer diameter of the peripheral wall is less than the rib length of the rib and the inner diameter of the peripheral wall is greater than the outer diameter of the boss.

An example of a vehicle shock absorber according to this embodiment will be described below with reference to the drawings.

In the drawings for explaining this vehicle shock absorber, unless otherwise specified, the arrow UP indicates the upper side of the vehicle and the arrow OUT indicates the outer side of the vehicle. Additionally, the circumferential direction of the vehicle shock absorber is indicated by the arrow X, and the height direction of the vehicle shock absorber is indicated by the arrow Y.

As shown in FIG. 1, the vehicle shock absorber part (hereinafter simply referred to as the "shock absorber part") 1 of the first embodiment is assembled to a vehicle door 100. Here, the vehicle door 100 includes a door trim 101, a door inner panel 104, and a door outer panel 105. The door trim 101 is an interior member that covers the passenger compartment side of the vehicle door 100. This door trim 101 is formed from various resin materials.

The door inner panel 104 is provided on the vehicle exterior side of the door trim 101 so as to face the door trim 101 with a gap therebetween. The door outer panel 105 is provided on the vehicle exterior side of the door inner panel 104 so as to face the door inner panel 104 with a gap therebetween. The material of the door inner panel 104 and the door outer panel 105 is not particularly limited, but typically used are materials mainly made of iron or aluminum, or carbon reinforced plastic materials such as CFRP.

The door trim 101 is provided with protrusions 102 and 103 that protrude from its outer surface 101a toward the inner surface 104a of the door inner panel 104, which is the opposing member, in the vehicle exterior direction. The protrusions 102 and 103 are intended to maintain a space between the door trim 101 and the door inner panel 104. The protrusion 102 is flat with the front-to-rear direction being the plate thickness direction, and is referred to as a flat rib 102. In contrast, the protrusion 103 is cylindrical with the left-to-right direction being the cylindrical axis direction, and is referred to as a cylindrical boss 103.

The cushioning part 1 of this embodiment can be attached to either the rib 102 or the boss 103. The cushioning part 1 is made of an elastic material that is softer than the rib 102 or the boss 103. This cushioning part 1 is typically made as an injection molded body made of an elastic material (soft resin material) called an elastomer. Alternatively, an elastic material other than an elastomer may be used as the material for the cushioning part 1.

When the cushioning part 1 is attached to the rib 102, it is interposed between the protruding tip of the rib 102 and the inner surface 104a of the door inner panel 104 in contact with each other, and absorbs the vibration between the protruding tip of the rib 102 and the inner surface 104a of the door inner panel 104 by elasticity, thereby suppressing the generation of abnormal noise. When the cushioning part 1 is attached to the boss 103, it is interposed between the protruding tip of the boss 103 and the inner surface 104a of the door inner panel 104 in contact with each other, and absorbs the vibration between the protruding tip of the boss 103 and the inner surface 104a of the door inner panel 104 by elasticity, thereby suppressing the generation of abnormal noise. The "abnormal noise" here broadly includes hitting sounds and rubbing sounds caused by repeated contact, separation, and rubbing.

1. Structure of the Cushioning Component 1 As shown in FIGS. 2 and 3 , the cushioning component 1 includes an outer periphery 10 and a holding block 20 .

As shown in FIG. 3, the outer peripheral portion 10 has a top plate 11 and a peripheral wall 12. When the cushioning part 1 is attached to the protrusions 102, 103 (see FIG. 1) of the door trim 101, the top plate 11 is interposed between the protrusions 102, 103 and the door inner panel 104 (see FIG. 1) to serve as a buffer portion that absorbs vibrations between the two. Therefore, the top plate 11 essentially performs the buffering function of the cushioning part 1. The outer peripheral portion 10 is configured such that the top plate 11 and the peripheral wall 12 are joined together to form a cap shape. The peripheral wall 12 is provided on the back side of the top plate 11 so as to surround the holding block portion 20.

As shown in Figures 3 and 4, the holding block portion 20 is provided in a block shape (or a roughly cylindrical shape) on the back side of the top plate 11 of the outer peripheral portion 10. The holding block portion 20 is provided with a storage groove 21 and multiple elastic protrusions 31.

The accommodation groove 21 is a groove portion that extends linearly in a predetermined direction D so that the rib 102 can be accommodated therein. For this reason, the groove width of the accommodation groove 21 is dimensioned to be slightly larger than the expected plate thickness of the rib 102.

Each elastic protrusion 31 protrudes from the wall surfaces 21a, 21b of the accommodation groove 21 in the groove width direction to a protruding height that is less than the groove width. The multiple elastic protrusions 31 are configured as a first holding portion that can elastically clamp and hold the rib 102 from both sides in the plate thickness direction. In this embodiment, in particular, each elastic protrusion 31 is provided so as to be alternately arranged in a predetermined direction D on the wall surfaces 21a, 21b on both sides in the groove width direction of the accommodation groove 21.

The peripheral wall 12 of the outer periphery 10 has two insertion openings 12a, 12b that are formed by opening a portion that overlaps with the accommodation groove 21 of the holding block portion 20 in the predetermined direction D. Both of the two insertion openings 12a, 12b are configured to allow the insertion of the rib 102 when the rib 102 is accommodated in the accommodation groove 21.

As shown in Figures 3 and 4, an accommodation space 13 and multiple elastic protrusions 32 are provided between the peripheral wall 12 of the outer periphery 10 and the holding block portion 20.

The accommodation space 13 is a space for accommodating the cylindrical wall 103a of the boss 103. In this embodiment, the accommodation space 13 is an annular space corresponding to the cylindrical wall 103a of the boss 103. The radial space width of the accommodation space 13 is dimensioned to be slightly larger than the expected plate thickness of the cylindrical wall 103a of the boss 103.

Each elastic protrusion 32 protrudes from the outer surface 20a of the holding block portion 20 to a protruding height that is less than the spatial width of the accommodation space 13. The multiple elastic protrusions 32 are configured as a second holding portion that can hold the cylindrical wall 103a of the boss 103 by elastically pressing it from one side in the wall thickness direction (i.e., the inner peripheral side of the cylindrical wall 103a).

When the elastic protrusion 31 is the first elastic protrusion 31, the elastic protrusion 32 is the second elastic protrusion 32 separate from the first elastic protrusion 31. The first elastic protrusion 31 and the second elastic protrusion 32 are both provided in a minute convex shape and are the parts of the cushioning component 1 that are most susceptible to elastic deformation. The first elastic protrusion 31 and the second elastic protrusion 32 may be integrally molded with the holding block portion 20, or may be provided as separate members and formed by joining with the holding block portion 20.

In this embodiment, the elastic protrusions 32 are provided only on the outer surface 20a of the holding block portion 20 near the openings on both sides of the accommodation groove 21. When the peripheral wall 12 is viewed from the radial outside, the elastic protrusions 32 are arranged at positions that can be recognized through the insertion openings 12a and 12b. This arrangement is effective in ensuring the removal direction when the elastic protrusions 32 are resin-molded by a molding die when the elastic protrusions 32 are molded integrally with the holding block portion 20.

2. Method of Attaching the Cushioning Component 1 to the Rib 102 A method of attaching the cushioning component 1 to the rib 102 will be described with reference to FIGS.

As shown in FIG. 5, when attaching the cushioning part 1 to the rib 102 of the door trim 101, the cushioning part 1 is moved in the height direction Y so that the peripheral wall 12 of the outer periphery 10 covers the rib 102. Then, after aligning the accommodation groove 21 of the holding block part 20 so that it extends along the rib 102, the rib 102 is inserted into the accommodation groove 21.

As shown in FIG. 6, when the plate thickness of the rib 102 is D1, the groove width of the accommodation groove 21 is d1, and the minimum distance between the elastic protrusion 31 on the wall surface 21a side and the elastic protrusion 31 on the wall surface 21b side is d2, these dimensions have the relationship d1>D1>d2.

Therefore, when the rib 102 is inserted into the accommodation groove 21, the multiple elastic protrusions 31 are crushed as if being pushed open by the rib 102. At this time, the rib 102 can be elastically sandwiched from both sides in the plate thickness direction by the elastic protrusion 31 on the wall surface 21a side and the elastic protrusion 31 on the wall surface 21b side. As a result, the multiple elastic protrusions 31 can elastically urge the rib 102 approximately evenly in the plate thickness direction, suppressing wobbling and absorbing the plate thickness of the rib 102. As a result, the rib 102 is in a holding state in which it is elastically held by the multiple elastic protrusions 31 in the accommodation groove 21. In this holding state, the rib 102 is gripped from both sides by the elastic protrusions 31. For this reason, the elastic protrusions 31 in this embodiment can also be called "gripping protrusions" or "gripping claws".

In this embodiment, insertion openings 12a and 12b are provided in the outer periphery 10. As shown in FIG. 6, when the opening width of the insertion openings 12a and 12b is d3, this opening width d3 has a relationship with the groove width d1 of the accommodation groove 21 expressed as d3>d1. Therefore, even if the rib length L of the rib 102 in the predetermined direction D exceeds the outer diameter of the outer periphery 10, the rib 102 can be inserted into the accommodation groove 21 and elastically held therein by inserting the rib 102 into the insertion openings 12a and 12b.

3. Method of Attaching the Cushioning Component 1 to the Boss 103 A method of attaching the cushioning component 1 to the boss 103 will be described with reference to FIGS.

As shown in FIG. 7, when attaching the cushioning part 1 to the boss 103 of the door trim 101, the cushioning part 1 is moved in the height direction Y so that the peripheral wall 12 of the outer periphery 10 covers the boss 103. Then, the annular storage space 13 between the peripheral wall 12 and the holding block part 20 is aligned with the cylindrical wall 103a of the boss 103, and the cylindrical wall 103a of the boss 103 is inserted into the storage space 13.

As shown in FIG. 8, when the wall thickness of the cylindrical wall 103a of the boss 103 is D2 and the radial dimension of the accommodation space 13 is d4, these dimensions have the relationship d4>D2.

Therefore, when the cylindrical wall 103a of the boss 103 is inserted into the storage space 13, the multiple elastic protrusions 32 are crushed as if being pushed open by the cylindrical wall 103a. At this time, the cylindrical wall 103a is elastically sandwiched from both sides in the wall thickness direction between the inner circumferential surface 12c of the peripheral wall 12 and the multiple elastic protrusions 32. This allows the multiple elastic protrusions 32 to absorb the difference between the inner diameter of the cylindrical wall 103a and the outer diameter of the holding block portion 20. As a result, the cylindrical wall 103a of the boss 103 is in a holding state in which it is elastically held by the multiple elastic protrusions 32 in the storage space 13. In this holding state, the cylindrical wall 103a of the boss 103 is pressed from the inside by the elastic protrusions 32 being crushed. For this reason, the elastic protrusions 32 in this embodiment can also be called "crushed protrusions" or "crushed claws".

According to the above-mentioned embodiment 1, the following effects can be obtained:

The cushioning part 1 of the first embodiment is configured such that, when attached to the protrusions 102, 103 of the door trim 101, the top plate 11 of the outer periphery 10 is interposed between the protrusions 102, 103 and the door inner panel 104. Therefore, the top plate 11 functions to absorb the vibrations of the protrusions 102, 103 and the door inner panel 104, and suppress the generation of abnormal noise. In contrast, the first elastic protrusion 31 and the second elastic protrusion 32 provided on the holding block part 20 on the back side of the top plate 11 are used to attach the cushioning part 1 to the protrusions 102, 103 of the door trim 101.

The first elastic protrusion 31 can elastically pinch and hold the flat rib 102 from both sides in the plate thickness direction. On the other hand, the second elastic protrusion 32 can elastically press and hold the cylindrical boss 103 from the inside in the wall thickness direction against the cylindrical wall 103a of the boss 103. In this way, by providing both the first elastic protrusion 31 and the second elastic protrusion 32 on the holding block portion 20 of the cushioning component 1, the cushioning component 1 can be used for attachment to both the flat rib 102 and the cylindrical boss 103.

Therefore, according to the above-described first embodiment, it is possible to provide a highly versatile cushioning part 1 that can be attached to multiple types of protrusions 102, 103 provided on a door trim 101, which is an interior member of a vehicle.

The cushioning part 1 of the first embodiment has the advantage that the attachment work to the protruding parts 102, 103 is simpler than a structure in which nonwoven fabric is attached as a cushioning material to the protruding parts 102, 103, and no unnecessary materials such as release paper are generated.

According to the cushioning part 1 of the first embodiment, by inserting the rib 102 into the accommodation groove 21 provided in the holding block part 20, the rib 102 can be elastically held by the elastic protrusions 31 protruding from the walls 21a, 21b of the accommodation groove 21. This makes it possible to attach the cushioning part 1 to the rib 102 by a simple one-touch operation of inserting the rib 102 into the accommodation groove 21 of the holding block part 20 using the holding block part 20 with a simple structure.

According to the cushioning component 1 of the first embodiment, the elastic protrusions 31 are arranged alternately (i.e., staggered) on one wall surface 21a and the other wall surface 21b of the accommodation groove 21 in the specified direction D in which the accommodation groove 21 extends, thereby keeping the number of elastic protrusions 31 to a minimum and elastically biasing the rib 102 roughly uniformly in the plate thickness direction to suppress rattling.

According to the cushioning part 1 of the first embodiment, by inserting the cylindrical wall 103a of the boss 103 into the accommodation space 13 provided between the holding block part 20 and the peripheral wall 12, the cylindrical wall 103a of the boss 103 can be elastically held by the second elastic protrusion 32 protruding from the holding block part 20 into the accommodation space 13. This makes it possible to attach the cushioning part 1 to the boss 103 with a simple one-touch operation of inserting the cylindrical wall 103a of the boss 103 into the accommodation space 13 between the peripheral wall 12 and the holding block part 20, which have a simple structure.

According to the cushioning part 1 of the first embodiment, by providing the insertion openings 12a, 12b in the peripheral wall 12, when the rib length L of the rib 102 exceeds the outer diameter of the outer periphery 10, the rib 102 can be accommodated in the accommodation groove 21 and the end of the rib 102 can be inserted through the insertion openings 12a, 12b of the peripheral wall 12 for installation. Therefore, regardless of the rib length L of the rib 102, the cushioning part 1 can be attached to the rib 102.

In a modification example that is particularly related to the cushioning part 1 having the above configuration, instead of a structure in which the elastic protrusions 31 are arranged alternately on the wall surfaces 21a and 21b of the accommodation groove 21 in the predetermined direction D, a structure can be adopted in which the elastic protrusions 31 on the wall surface 21a side and the elastic protrusions 31 on the wall surface 21b side are arranged opposite each other.

In another modification example that is particularly related to the cushioning component 1 having the above configuration, instead of arranging the elastic protrusions 32 only near the openings on both sides of the accommodation groove 21 on the outer surface 20a of the holding block portion 20, a structure can be adopted in which the elastic protrusions 32 are arranged approximately evenly in the circumferential direction X on the outer surface 20a of the holding block portion 20.

Next, other embodiments related to the above-mentioned first embodiment will be described with reference to the drawings. In the other embodiments, elements that are the same as those in the above-mentioned first embodiment are given the same reference numerals, and descriptions of the same elements will be omitted.

(Embodiment 2)
9, the cushioning part 2 of the second embodiment differs from the cushioning part 1 of the first embodiment in that a plurality of elastic protrusions 32 are provided on the inner peripheral surface 12c of the peripheral wall 12 of the outer periphery 10. That is, in the cushioning part 1, the elastic protrusions 32 are provided only on the outer surface 20a of the holding block part 20, whereas in the cushioning part 2, the elastic protrusions 32 are provided not only on the outer surface 20a of the holding block part 20 but also on the inner peripheral surface 12c of the peripheral wall 12.

The rest of the configuration is the same as in embodiment 1.

According to the buffer part 2 of the second embodiment, when the cylindrical wall 103a of the boss 103 is inserted into the accommodation space 13, the cylindrical wall 103a can be elastically sandwiched from both sides in the wall thickness direction between the elastic protrusions 32 on the holding block portion 20 side and the elastic protrusions 32 on the peripheral wall 12 side. As a result, the multiple elastic protrusions 32 elastically bias the cylindrical wall 103a of the boss 103 approximately evenly in the wall thickness direction, suppressing rattling.

Otherwise, it has the same effects as embodiment 1.

(Embodiment 3)
As shown in FIG. 10 , the cushioning component 3 of the third embodiment differs from the cushioning component 1 of the first embodiment in that the peripheral wall 12 of the outer tube 10 is omitted.

The rest of the configuration is the same as in embodiment 1.

According to the cushioning part 3 of the third embodiment, the structure of the outer periphery 10 is simplified, thereby reducing the parts cost compared to the cushioning part 1 of the first embodiment.

Otherwise, it has the same effects as embodiment 1.

(Embodiment 4)
11 , the cushioning part 4 of the fourth embodiment differs from the cushioning part 1 of the first embodiment in that the holding block part 20 is omitted and the elastic protrusions 31, 32 are provided at positions other than the holding block part 20. That is, the peripheral wall 12 of the cushioning part 4 is provided with insertion openings 12a, 12b through which the rib 102 can be inserted, a first elastic protrusion 31 (first holding part) protruding from the wall surfaces in the width direction of the insertion openings 12a, 12b, and a second elastic protrusion 32 (second holding part) protruding from the inner peripheral surface 12c. In this case, the peripheral wall 12 is configured such that its outer diameter is smaller than the rib length L of the rib and its inner diameter is larger than the outer diameter of the boss 103.

The rest of the configuration is the same as in embodiment 1.

According to the buffer part 4 of the fourth embodiment, the rib 102 can be elastically held by the first elastic protrusions 31 provided on the insertion openings 12a, 12b of the peripheral wall 12, while the cylindrical wall of the boss 103 can be elastically held by the second elastic protrusions 32 provided on the inner peripheral surface 12c of the peripheral wall 12. This is effective in simplifying the structure of the first and second holding parts as much as possible when the outer diameter of the peripheral wall 12 is smaller than the rib length L of the rib 102 and the inner diameter of the peripheral wall 12 is larger than the outer diameter of the boss 103.

Otherwise, it has the same effects as embodiment 1.

The present invention is not limited to the above-mentioned embodiment, and various applications and modifications are possible without departing from the purpose of the present invention. For example, the following embodiments can be implemented by applying the above-mentioned embodiment.

In the above embodiment, the cylindrical boss 103 is assumed to be cylindrical with a circular cross section, but the cross-sectional shape of the boss 103 is not limited to a circle, and may be an ellipse, a triangle, a rectangle, a polygon, etc. In this case, the shapes of the outer periphery 10 and the holding block portion 20 are appropriately changed according to the cross-sectional shape of the assumed boss 103.

In the above embodiment, the cushioning parts 1, 2, 3, and 4 are exemplified as being attachable to the protruding parts 102 and 103 of the door trim 101, which is an interior member, but the interior member is not limited to the door trim 101. The cushioning parts 1, 2, 3, and 4 can be attached to another interior member having a portion similar to the protruding parts 102 and 103.

1, 2, 3, 4 Vehicle cushioning part 11 Top plate (cushioning part)
12 Peripheral wall 12a, 12b Insertion opening 12c Inner peripheral surface 20 Holding block portion 21 Housing groove 21a, 21b Wall surface 31 First elastic protrusion (first holding portion)
32 Second elastic protrusion (second holding portion)
101 Door trim (interior parts)
102 Rib (protrusion)
103 Boss (protruding part)
103a: cylindrical wall 104: door inner panel (opposing member)
D: specified direction L: rib length

Claims (6)

A vehicle cushioning component that is attached to a protruding portion provided on an interior member of a vehicle so as to protrude toward an opposing member,
a buffer portion interposed between the protruding portion and the opposing member in a state where the buffer portion is attached to the protruding portion of the interior member;
a first holding portion capable of elastically sandwiching and holding the flat rib, which is the protruding portion, from both sides in a plate thickness direction;
a second holding portion that is capable of holding the cylindrical boss as the protruding portion by elastically pressing the cylindrical wall of the boss from at least one side in a wall thickness direction;
A vehicle cushioning part comprising: The vehicle cushioning part according to claim 1, further comprising a retaining block part provided in a block shape on the back side of the cushioning part, the retaining block part being provided with a receiving groove extending linearly in a predetermined direction so as to be able to receive the rib, and an elastic protrusion protruding from the wall surface of the receiving groove in the groove width direction, the elastic protrusion forming the first retaining part. The vehicle shock absorber component according to claim 2, wherein the elastic protrusions are arranged alternately in the predetermined direction on both side walls of the groove width direction of the accommodation groove. The buffer portion and the peripheral wall form a cap shape and surround the holding block portion.
A vehicle cushioning part as described in claim 2 or 3, wherein between the peripheral wall and the retaining block portion there is provided an accommodation space for accommodating the tubular wall of the boss, and a second elastic protrusion protruding from at least one of the peripheral wall and the retaining block portion into the accommodation space when the elastic protrusion is a first elastic protrusion, and the second retaining portion is constituted by the second elastic protrusion. The vehicle shock absorber component according to claim 4, wherein the peripheral wall has an insertion opening formed by opening a portion that overlaps with the housing groove of the holding block portion in the predetermined direction. a peripheral wall that forms a cap shape together with the buffer portion, the peripheral wall being configured such that an outer diameter thereof is smaller than a rib length of the rib and an inner diameter thereof is larger than an outer diameter of the boss,
The vehicle cushioning part of claim 1, wherein the peripheral wall is provided with an insertion opening through which the rib can be inserted, a first elastic protrusion protruding from a wall surface in the width direction of the insertion opening, and a second elastic protrusion protruding from an inner peripheral surface, the first elastic protrusion constituting the first retaining portion, and the second elastic protrusion constituting the second retaining portion.

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