JP6520001B2 - Structure of interior member - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to the structure of an interior member disposed on the inner side of a door panel of a vehicle.

  Conventionally, a side door is provided on the side of a vehicle body of a vehicle for opening and closing an opening on which a passenger gets on and off. As shown in FIG. 6, a door trim 50 as an interior member is attached to the side of the door panel of the side door, as shown in FIG. 6, in order to ensure the beauty and comfortable amenity of the vehicle interior. The door trim 50 is provided with a main board 51 covering the vehicle interior side of the door panel, and an armrest 52 (including a pull case portion 52a) formed of separate parts. The armrest 52 is generally located outside the armrest chamber. The claws 53 provided on the back surface of the terminal 52b are inserted into the board mounting holes 51a and hooked on the periphery of the holes, whereby the main board 51 can be mounted. Therefore, the claws 53 are disposed extending in the vertical direction, and a back surface rib 54 engaged with the board attachment hole 51a is formed on the back surface located on the vehicle interior side.

In such a door trim 50 structure, the load A when the occupant pulls the pull case portion 52a to the vehicle interior side when the side door is closed, the rear rib 54 engaged with the board mounting hole 51a in the direction of the load A By supporting in the orthogonal direction, the occupant can perform the closing operation of the side door without the armrest 52 being detached from the door trim 50.
However, in the structure of the door trim 50, as shown in FIG. 6, the attachment trajectory X at the time of assembling the armrest 52 becomes the same vertical direction as the arrangement direction of the claws 53, so the terminal 52b outside the armrest chamber is the main There is a problem that the design surface of the board 51 on the side of the passenger compartment is damaged by being in contact. In order to prevent such damage to the design surface of the main board 51, it is necessary to affix a protective seal or the like on the design surface for protection, which may lead to an increase in cost.

  Therefore, in the structure of the conventional door trim 60 shown in FIG. 7, the attachment locus X of the outdoor side terminal 62b of the armrest 62 is oblique by arranging the claws 63 inserted in the board attachment hole 61a and hooking around the hole diagonally up and down. It sets so that it may become from the upper direction, and the damage to the design surface of the main board 61 can be prevented easily now (for example, refer patent document 1). Further, by supporting the slope of the back surface 64 of the claw 63 in a direction crossing the direction of the load A when pulling the pull case portion 62a to the vehicle interior side, the occupant's door is closed as in the prior art of FIG. It is possible to exert a resistance to the load A generated at the time of operation. In addition, in FIG. 7, the code | symbol 65 is an inner panel which comprises a door panel.

Patent No. 5168531 gazette

  However, in the above-described conventional door trim 60 structure, as shown in FIG. 7, when the inner panel 65 is deformed due to the load B from the outer side of the vehicle at the time of a side collision of the vehicle and intrudes toward the vehicle interior, It becomes a force to push the tip portion 63a of 63 into the vehicle compartment side, and this pushing force is converted to a force to push the armrest 62 diagonally upward through the slope of the back surface 64 of the claw 63 and the armrest 62 comes off the main board 61 There was a fear. As this prevention measure, as shown in FIG. 8, after the assembly of the armrest 62, in order to connect the main board 61 and the armrest 62, it is necessary to additionally perform a strong fixing operation such as tightening the screw 66. The cost of parts and assembly work could increase, and it could not be said that this was an effective measure.

  The present invention has been made in view of such a situation, and an object thereof is to facilitate the installation of the upper surface member on the interior member without the edge of the outer side of the vehicle damaging the inner surface of the interior member of the interior member. A structure of an interior member which can be attached and which can prevent the claw shaped portion of the upper surface member from coming out of the insertion hole of the interior member even if the door panel enters the vehicle interior side due to a vehicle side collision. To provide.

To solve the problems of the prior art, the present invention is the interior member for covering the vehicle interior side of the door panel of a door of the vehicle, a projecting portion projecting toward the vehicle interior side is provided, on the upper surface of the projecting portion In the structure of the interior member to which the upper surface member separate from the interior member is attached, of the edge portions of the upper surface member in the vehicle width direction, the lower side of the vehicle is on the back side of the edge located on the vehicle outer side A claw-shaped portion is provided which protrudes while inclining toward the end, and a bent portion which bends downward in the vehicle is provided on the tip end side of the claw-shaped portion, and the claw shaped portion is extended from the bent portion to the tip portion. By inserting the insertion member into the insertion hole of the interior member, the edge on the vehicle outer side of the upper surface member is attached to the projecting portion, and the bent portion of the claw shaped portion is the claw shaped portion Insert into the insertion hole In state I, located on the vehicle lower side protrudes from the object insertion hole, a surface facing the vehicle outside of the bent portion is facing the door panel.

  In the present invention, the back surface of the claw-shaped portion is provided with a rib-shaped portion that extends toward the vehicle interior and abuts on an edge portion of the insertion hole.

  Further, in the present invention, a folded-back portion with an inverted Z-shaped cross section is provided on the vehicle interior side of the portion provided with the insertion hole so that the rib-shaped portion abuts on the surface forming the folded-back portion. It is configured.

  Furthermore, in the present invention, the length from the bent portion of the claw shaped portion to the tip end portion is set to a size that protrudes below the lowermost end of the folded back portion of the Z-shaped cross section There is.

  Further, in the present invention, the angle of the surface of the portion ahead of the bent portion of the claw shaped portion is set to be substantially equal to the angle of the vehicle interior side intruding portion of the door panel which is deformed at the side collision.

  Further, in the present invention, a plurality of the claw shaped portions are provided along the longitudinal direction of the upper surface member.

  Furthermore, in the present invention, the pitches of the plurality of claw shaped portions are set at equal intervals.

  Further, in the present invention, among the plurality of claw-shaped portions, the adjacent claw-shaped portions that are partially adjacent to each other are provided at places having a pitch shorter than the pitch of the plurality of other claw-shaped portions.

As described above, the structure of the interior member according to the present invention, the interior member for covering the vehicle interior side of the door panel of a door of a vehicle, provided with a projecting portion projecting toward the vehicle interior side, the interior on the upper surface of the projecting portion The member is a structure for attaching a top member separate from the member, and among the edges in the vehicle width direction of the top member, the back surface of the edge located on the vehicle outer side is inclined toward the vehicle lower side and the vehicle outer side A claw-shaped portion that protrudes while being provided is provided with a bending portion that bends downward in the vehicle on the tip end side of the claw-shaped portion, and the nail-shaped portion extends from the bending portion to the tip portion. By inserting the insertion member into the insertion hole, the vehicle outer side edge of the upper surface member is attached to the projecting part, and the bending part of the claw-shaped part is adapted to receive the claw-shaped part. In the state of being inserted into the hole, the above-mentioned Located on the vehicle lower side protrudes from the hole, the surface facing the vehicle outside of the bent portion is facing the door panel, inserting the claw-shaped portion which inclined downward toward the vehicle outer side to the insertion hole When attaching the upper surface member to the interior member, the edge located on the vehicle outer side in the vehicle width direction can be easily and reliably attached to the interior member without damaging the design surface of the interior surface of the interior member. The appearance quality can be improved by maintaining the good appearance of the member.
Moreover, according to the structure of the interior member of the present invention, even if the door panel is deformed by the load from the outside of the vehicle compartment at the time of a side collision of the vehicle and intrudes into the vehicle interior, the bent portion of the hook shaped portion is further advanced. Since the end face will receive the intruded door panel and prevent the top member from being pushed up, there is no need to add new fixing parts or to form the interior member etc. into a complicated shape, The claw shaped portion of the upper surface member can be prevented from coming off from the insertion hole of the interior member, and the vehicle outer edge portion of the upper surface member and the projecting portion of the interior member can be reliably connected and held.

  Further, in the present invention, the back surface of the claw-shaped portion is provided with a rib-shaped portion extending toward the vehicle interior and in contact with the edge portion of the insertion hole. When the door panel intrudes into the vehicle compartment side, the load from the outside of the vehicle compartment received by the surface of the end portion ahead of the bent portion of the claw shaped portion is inserted into the insertion hole via the rib shaped portion. It becomes possible to transmit to the contact portion, and it is possible to suppress the deflection of the claw-shaped portion and to more reliably prevent the upper surface member from being detached from the interior member.

  Furthermore, in the present invention, a folded back portion having an inverted Z-shaped cross section is provided on the vehicle interior side of the portion provided with the insertion hole, and the rib-shaped portion abuts on the surface forming the folded back portion. As it is configured, it is possible to secure not only the edge of the insertion hole with respect to the rib-shaped portion but also a wide contact surface, and the door panel has intruded into the vehicle interior due to the vehicle side collision. At times, the claw-shaped part can be firmly held in the insertion hole. In addition, since the bent portion of the reverse Z-shaped cross section of the folded portion has a buffer effect, breakage of the claw shaped portion is effectively prevented even when a large load is applied from the outside of the vehicle compartment at the time of vehicle side collision. can do.

  Further, in the present invention, the length from the bent portion of the claw shaped portion to the tip end portion is set to a size that projects below the lowermost end of the folded back portion of the Z-shaped cross section Therefore, even when the door panel intrudes into the vehicle compartment due to a vehicle side collision, the tip end portion of the claw shaped part from the bent part of the hook shaped part is caught on the folded back part of reverse Z type, and the upper surface member is from the interior member It is possible to further prevent the detachment.

  And, in the present invention, the angle of the surface of the portion ahead of the bent portion of the claw-shaped portion is set to be substantially equal to the angle of the vehicle interior side intruding portion of the door panel deformed at the side collision. It is possible to receive the vehicle interior side entry portion of the door panel along the surface of the portion from the bent portion of the claw shaped portion to the tip. As a result, since the claw-shaped portion is not pushed out of the insertion hole, the upper surface member can be more reliably prevented from coming off the interior member.

  Further, in the present invention, a plurality of the claw-shaped portions are provided along the longitudinal direction of the upper surface member, so that there are a plurality of receiving surfaces for the door panel entering the vehicle interior at the time of a side collision. It is possible to efficiently obtain an effect close to the effect in the case where the vehicle interior side intruding portion of the door panel is received by the surface formed in a larger area than these claw shaped portions.

  Furthermore, in the present invention, the pitches of the plurality of claw-shaped portions are set at equal intervals, so that the claw-shaped portions do not come out of the insertion holes, they are generated from the outside of the vehicle cabin. The input load can be evenly distributed, and the removal of the top member from the interior member can be more effectively prevented.

  And, in the present invention, among the plurality of claw shaped portions, the adjacent claw shaped portions that are partially adjacent to each other are provided at places having a pitch shorter than the pitch of the other plurality of claw shaped portions. By closely arranging the claw-shaped portion in a portion where the input load from the outside of the vehicle compartment generated at the time of a side collision is large, the mounting strength of the required portion can be improved, and the upper surface member is removed from the interior member It can be prevented efficiently.

It is the perspective view which looked at the door trim and armrest to which the structure of the interior member which concerns on embodiment of this invention is applied from the vehicle interior side. It is the CC sectional view taken on the line in FIG. It is a top view which shows the armrest in FIG. It is a perspective view which shows the state before attaching an armrest to the upper surface of the overhang | projection part of the door trim in FIG. It is a perspective view which shows the state before attaching the door trim and armrest in FIG. 1 to a door panel. It is sectional drawing which shows the door trim and armrest to which the structure of the conventional interior member is applied. It is sectional drawing which shows the door trim and armrest to which the structure of another conventional interior member is applied. It is sectional drawing explaining the door trim to which the structure of the conventional interior member is applied, and the detachment prevention measures of an armrest.

Hereinafter, the present invention will be described in detail based on the illustrated embodiments.
1 to 5 show the structure of an interior member according to an embodiment of the present invention. In FIG. 2, the arrow O indicates the direction outside the passenger compartment, and the arrow R indicates the direction inside the passenger compartment.

  As shown in FIGS. 1 to 5, the door trim 1 to which the structure of the interior member according to the embodiment of the present invention is applied is a door panel which is a side surface of the vehicle in order to ensure the beauty and comfortable habitability of the vehicle interior. It is an interior member for vehicles which covers and is attached to the vehicle interior side of 2, and storage space etc. are provided in such a door trim 1. As shown in FIG. Moreover, the door panel 2 of this embodiment is a door inner panel which comprises the side door which opens and closes the door opening part provided in the vehicle body side surface of the vehicle.

As shown in FIGS. 1, 2 and 5, the door trim 1 of this embodiment is constituted of a main board (trim board) 11 formed of a synthetic resin material or the like having a size corresponding to that of the door panel 2. In the middle portion of the vertical wall surface 11a extending in the vehicle vertical direction and the vehicle longitudinal direction of the main board 11, a projecting portion 12 is provided which protrudes from the vertical wall surface 11a toward the vehicle interior in the vehicle width direction. . As shown in FIGS. 1 to 5, an armrest (upper surface member) 3 which is configured separately from the door trim 1 and installed from obliquely above the vehicle is attached to the upper surface 12 a of the projecting portion 12.
Therefore, as shown in FIG. 4, the upper surface 12a of the overhanging portion 12 is formed in a horizontal plane having a predetermined width corresponding to the size of the armrest 3, and is provided extending along the vehicle longitudinal direction It is done. Further, on the upper surface 12a of the overhanging portion 12, a plurality of (three in the present embodiment) openings 13 are provided spaced apart in the vehicle longitudinal direction, leaving the peripheral portion open for storage space and switches. A partition 14 is provided between the openings 13.

  Furthermore, as shown in FIG. 2 and FIG. 4, a plurality of engaging claws (claw shaped portions) described later are inserted into the vehicle exterior side (the vertical wall surface 11 a side of the main board 11) of the upper surface 12 a of the overhanging portion 12. The insertion holes 15 are provided at predetermined positions in the longitudinal direction of the vehicle at positions corresponding to locking claws described later. The portion of the projecting portion 12 provided with such a receiving hole 15 is an inclined surface that inclines downward toward the vehicle interior, and is substantially similar to a locking claw (described later) inserted into the receiving hole 15 A fold 12b is formed, which extends orthogonally and which is further bent toward the outer side of the vehicle compartment on the side of the vehicle interior of the portion concerned, so that the entire shape is a reverse Z shape in cross section when viewed from the rear of the vehicle There is.

On the other hand, as shown in FIGS. 1 to 5, the armrest 3 of the present embodiment is directed downward except the substantially flat upper surface 3 a suitable for placing the elbow of the occupant and the vertical wall 11 a of the main board 11. The L-shaped cross section along the vehicle width direction is formed by the side surface portion 3b bent and placed on the upper surface of the peripheral edge portion of the overhang portion 12, and the middle portion of the top surface portion 3a in the vehicle longitudinal direction is A pull case portion 31 having a concave shape in the downward direction of the vehicle is provided.
Further, of the edges of the armrest 3 in the vehicle width direction, on the back surface side of the edge 3c located on the vehicle outer side (the side of the vertical wall 11a of the main board 11), A plurality of locking claws (claw shaped portions) 32 protruding while being provided, and the plurality of locking claws 32 are provided at intervals along the longitudinal direction of the armrest 3 (the vehicle longitudinal direction). ing. Moreover, the pitches of the plurality of locking claws 32 are set at equal intervals, and the input load from the outside of the vehicle room generated at the time of a side collision is equally distributed to each locking claw 32. Does not come out of the insertion hole 15.

  As shown in FIG. 2, the locking claw 32 of the present embodiment is formed in a vertically long plate shape extending obliquely downward from the back surface side of the edge 3 c of the armrest 3 located on the vehicle outer side. It has substantially the same size as the insertion hole 15 of the portion 12 and is formed with a projecting length such that each of the locking claws 32 can be inserted into the corresponding insertion hole 15. A bent portion 32b bent downward in the vehicle is provided on the tip end 32a side of the locking claw 32, and the inclination angle of the locking claw 32 is changed halfway along the bent portion 32b. Further, the bent portion 32b of the locking claw 32 is provided at a position where it protrudes from the insertion hole 15 and is located on the lower side of the vehicle in a state where the locking claw 32 is inserted into the insertion hole 15. .

Moreover, as shown in FIG. 2, the length L from the bent portion 32 b of the locking claw 32 to the tip end portion 32 a is such that the length L projects to the lower side of the vehicle than the lowermost end of the folded back portion 12 b It is set to. As a result, the load Z from the outer side of the vehicle during a side collision of the vehicle receives a load B and the locking claw 32 exerts a reaction force orthogonal to the load direction against the force by which the locking claw 32 is pushed out to the vehicle interior In addition, even when the door panel 2 intrudes into the passenger compartment at the time of a side collision of the vehicle, the tip end portion beyond the bent part 32b of the locking claw 32 pushed out towards the passenger compartment is the folded back part 12b The hooking hook 32 is prevented from coming off from the insertion hole 15 so that the arm rest 3 does not come off the main board 11 of the door trim 1.
In addition, the angle θ of the surface of the portion ahead of the bent portion of the locking claw 32 is set to be substantially equal to the angle of the vehicle interior side intrusion portion of the door panel 2 deformed by the load B from the vehicle exterior outside at the time of a vehicle side collision. ing. As a result, the vehicle interior side entry portion of the door panel 2 at the time of a side collision is received along the surface of the portion ahead of the bent portion 32 b of the locking claw 32, and the locking claw 32 is inserted from the insertion hole 15. It has a structure that can not be pushed out.

Furthermore, as shown in FIG. 2, on the back surface of the locking claw 32, a claw back side rib (rib-shaped portion) that extends toward the vehicle interior and abuts on the edge of the insertion hole 15 of the projecting portion 12. ) 33 are provided. The claw back side rib 33 also has a function of enhancing the rigidity of the locking claw 32, and obliquely downward along the back surface of the locking claw 32 from the back surface side of the edge 3 c of the armrest 3 located on the vehicle outer side. It extends to the vicinity of the bending portion 32b. That is, the claw back side rib 33 is erected with a length extending from the back surface of the locking claw 32 to the edge of the insertion hole 15 and is formed in an inclined surface shape having the same angle as the locking claw 32 In the state where the locking claw 32 is inserted into the insertion hole 15, the locking claw 32 is positioned below the insertion hole 15 in the vehicle.
As a result, when the door panel 2 intrudes into the vehicle interior by receiving the load B from the outer side of the vehicle at the time of a side collision of the vehicle, it is received by the surface of the end portion ahead of the bent portion 32b of the locking claw 32 The load B from the outside of the passenger compartment is transmitted to the main board 11 through the contact portion with the insertion hole 15 via the claw back side rib 33 and the projection 12. Along with that, since the bending of the locking claw 32 is suppressed, the locking claw 32 comes out of the insertion hole 15, and the armrest 3 does not come off the main board 11.

  In addition, the claw back side rib 33 is configured to abut on the surface forming the folded back portion 12b of the cross-sectional reverse Z-shape. As a result, not only the edge of the insertion hole 15 but also a wide contact surface can be secured with respect to the claw back side rib 33, and the door panel 2 has intruded into the vehicle interior due to a vehicle side collision. Even in this case, the claw back side rib 33 is held in the insertion hole 15. Further, since the bent portion of the reverse Z-shaped section of the folded back portion 12 has a buffer effect, the locking claw 32 is prevented from being damaged even when a large load B is applied from the outside of the vehicle compartment at the time of a vehicle side collision. It becomes possible.

As described above, in the structure of the door trim 1 according to the embodiment of the present invention, the projecting portion 12 projecting toward the vehicle interior side is provided on the vertical wall surface 11 a of the main board 11 constituting the door trim 1. An armrest 3 separate from the door trim 1 is attached to the upper surface 12a, and of the edges in the vehicle width direction of the armrest 3, on the back of the edge 3c located on the vehicle outer side, to the vehicle lower and vehicle outer A locking claw 32 is provided that protrudes while inclining toward the end, and a bent portion 32b that bends downward in the vehicle is provided on the tip end 32a side of the locking claw 32. The locking claw is extended from the bent portion 32b to the tip end 32a By inserting 32 into the insertion hole 15 provided on the outer side of the casing of the projecting portion 12, the edge 3 c on the vehicle outer side of the armrest 3 is attached to the projecting portion 12. You have me.
Therefore, according to the structure of the door trim 1 of this embodiment, when the armrest 3 is attached to the door trim 1 by inserting the locking claw 32 that slopes downward toward the vehicle outer side into the insertion hole 15, as shown in FIG. As shown in the drawing, the mounting locus X from diagonally above along the inclined surface of the locking claw 32 and the claw back side rib 33 becomes an edge part 3 c of the armrest 3 positioned outside the vehicle in the vehicle width direction constitutes the door trim 1 The arm wall 3 can be easily and reliably attached to the main board 11 of the door trim 1 while the damage to the vertical wall surface 11 a of the main board 11 is eliminated.

Further, according to the structure of the door trim 1 of the present embodiment, when the door panel 2 is deformed and intrudes into the vehicle interior by receiving the load B from the outer side of the vehicle at the side collision of the vehicle, the bending of the locking claw 32 Since the face of the end portion ahead of the portion 32b receives the intruded door panel 2, pushing up of the armrest 3 can be suppressed. Therefore, it is not necessary to add a new fixing part, and it is not necessary to make the door trim 1 etc. into a complicated shape, and the locking claw 32 of the armrest 3 reliably comes off from the insertion hole 15 of the projecting portion 12 While being able to prevent, part cost can be reduced.
Furthermore, also in the structure of the door trim 1 according to the present embodiment, the load R at the time the occupant pulls the pull case portion 31 to the vehicle interior side at the time of closing the side door is a claw back side rib 33 that contacts the edge of the insertion hole 15 Can be supported in the direction orthogonal to the direction of the load A, and the armrest 3 can not be removed from the door trim 1 so that the occupant can perform the closing operation of the side door.

  Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications and changes are possible based on the technical idea of the present invention.

  For example, in the embodiment described above, the pitches of the plurality of locking claws 32 are set at equal intervals, but some of the plurality of locking claws 32 are adjacent to each other. Alternatively, it may be provided at a shorter pitch than the pitch of the plurality of other locking claws 32. In other words, if the structure is such that a plurality of locking claws 32 are densely arranged at a short pitch at a location where the input load B from the outside of the vehicle compartment generated at the time of a vehicle side collision is large As a result, the armrest 3 can be effectively prevented from coming off from the door trim 1.

1 Door trim (interior member)
2 Door panel 3 Armrest (upper surface member)
3a upper surface portion 3b side surface portion 3c edge portion 11 main board 11a vertical wall surface 12 overhang portion 12a upper surface 12b folded portion 15 insertion hole 31 pull case portion 32 locking claw (nail shape portion)
32a tip portion 32b bent portion 33 claw back side rib (rib shaped portion)

Claims (8)

The interior member that covers the interior of the door panel of the vehicle door is provided with a projecting portion projecting toward the interior of the vehicle interior, and the structure of the interior member to which an upper surface member separate from the interior member is attached to the upper surface of the projecting portion. In
Among the edges of the upper surface member in the vehicle width direction, on the back surface of the edge located on the outer side of the vehicle, there is provided a claw-shaped portion that protrudes while inclined toward the vehicle lower and outer side. On the tip end side of the part, there is provided a bending portion that bends downward in the vehicle,
By inserting the claw shaped portion into the insertion hole of the interior member from the bent portion to the tip end portion, the edge portion on the vehicle outer side of the upper surface member is attached to the projecting portion .
The bent portion of the claw-shaped portion protrudes from the insertion hole and is located on the lower side of the vehicle in a state where the claw-shaped portion is inserted into the insertion hole.
The structure of the interior member, wherein a surface of the bent portion facing the vehicle outer side faces the door panel .   The interior according to claim 1, wherein a rib-shaped portion is provided on the back surface of the claw-shaped portion, the rib-shaped portion extending toward the vehicle interior and contacting the edge of the insertion hole. Structure of members.   A folded-back portion with an inverted Z-shaped cross section is provided on the vehicle interior side of the portion provided with the insertion hole, and the rib-shaped portion is configured to abut on the surface forming the folded-back portion. The structure of the interior member according to claim 2 characterized by the above.   The length from the bent portion of the claw shaped portion to the tip end portion is set to a size that protrudes below the lower end of the folded portion of the Z-shaped cross section below the vehicle. The structure of the interior member according to claim 3.   The angle of the surface of the portion ahead of the bent portion of the claw-shaped portion is set to be substantially equal to the angle of the in-vehicle-intruding portion of the door panel that is deformed at the time of a side collision. Structure of the interior member described.   The structure of the interior member according to any one of claims 1 to 5, wherein a plurality of the claw shaped portions are provided along the longitudinal direction of the upper surface member.   The structure of the interior member according to any one of claims 1 to 6, wherein the pitches of the plurality of claw shaped portions are set at equal intervals.   Among the plurality of claw-shaped portions, a part of the adjacent claw-shaped portions is provided at a position at a pitch shorter than the pitch of the plurality of other claw-shaped portions. The structure of the interior member of any one of -7.

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