JP6836542B2 - Belt mall - Google Patents

Description

The present invention relates to a belt molding, and more particularly to a type of belt molding in which an end cap is attached to one end of a long belt molding base. Examples of this type of belt molding include an outer belt molding that can be attached along a belt line located at the upper edge of the door outer panel.

Belt moldings as described above are disclosed in, for example, Patent Documents 1 and 2.
Patent Document 1 discloses an end cap for molding. According to the summary and selection drawing of Document 1, an elastic locking coating (21) such as PVC resin is provided on the inner surface of the side edge (2a) of the molding (2), and the end cap (1) is provided with an elastic locking coating (21). A hook piece (12) slightly inclined with respect to the longitudinal direction of the molding is projected from the leg portion (10). When the end cap is fitted into the groove (20) in the end of the molding, the hook piece (12) bites into the locking coating (21) with its elastic restoring force, thereby preventing the end cap from coming off. Will be done.

Patent Document 2 discloses a molding provided with an end cap. According to the summary and selection diagram of Document 2, the end cap (25) includes an end cap main body portion (27) and an end cap movable portion (29). The movable portion (29) is provided with a base end portion rotatably provided on the main body portion (27), and a claw portion (35) and a second protrusion (37) are provided on the rotating end portion side of the movable portion (29). ) Is formed. Incidentally, the end cap movable portion (29) extends in a direction substantially orthogonal to the longitudinal direction of the molding body (23). When the claw portion (35) engages with the bent portion (23a) of the molding body, the second protrusion (37) comes into contact with the first protrusion (28) of the molding body, so that the end cap is attached to the molding body. Movement in the direction of exiting the opening (23b) is prohibited.

Jikkenhei 5-82694 Japanese Unexamined Patent Publication No. 2008-105504

However, in any of the configurations of Patent Documents 1 and 2, in light of the holding principle of the end caps, an external force in a direction intersecting the pull-out direction (or insertion direction) of the end caps is a locking portion (Reference 1). Then, when it reaches the hook piece 12 and the end cap movable portion 29) in Document 2, the locking portion may be unintentionally disengaged from the molding body and the end cap may come off from the molding.

An object of the present invention is to provide a belt molding in which the end cap does not easily come off even when an external force in a direction intersecting the longitudinal direction of the belt molding is applied.

The invention of claim 1 is a belt molding attached along the upper edge of a door panel of a vehicle door.
The belt molding has a long belt molding base and an end cap attached to at least one end of the belt molding base.
The end cap includes a lid for closing the open end of the base of the belt molding, a main body extending from the lid along the longitudinal direction of the belt molding, and a holding portion protruding from the main body. And have
The belt molding base has a vehicle outer side wall portion and a vehicle inner side wall portion facing each other, and a top wall portion for integrally connecting these two side wall portions, and the belt molding base is lowered by these three wall portions. It has a substantially U-shaped cross-sectional shape that opens to the side, and at least the internal space for inserting and arranging the main body of the end cap is partitioned.
The belt molding base has notches at least in at least a part of the inner side wall of the vehicle at at least one of both ends thereof.
The notch is partitioned by a peripheral wall formed on the inner side wall of the vehicle, and the peripheral wall partitioning the notch is formed by the longitudinal length of the belt molding at a position on the lid side of the end cap. The β surface is set as a receiving surface that is not perpendicular to the direction.
The holding portion of the end cap projects from the main body portion toward the lower opening of the belt molding base in a direction intersecting the longitudinal direction of the belt molding, and the holding portion is elastic around the base thereof. Further, when the end cap is attached to the base of the belt molding in a normal position, the holding portion is accommodated in the notch.
Near the tip of the holding portion, there is an end face region extending in the longitudinal direction of the belt molding while facing the lower opening of the belt molding base, and a part of the end face region is a notch of the belt molding base. The α plane is set as the regulation plane corresponding to the β plane of the part, and this α plane is not perpendicular to the longitudinal direction of the belt molding.
When the end cap is placed in the normal position, the α-plane of the holding portion and the β-plane of the notch portion remain in non-contact state with each other.
When a load in the direction of pulling out the end cap acts from the base of the belt molding and the end cap is displaced from the normal position, the α surface of the holding portion can come into contact with the β surface of the notch portion. It is a belt mall characterized by.

According to the present invention, when the end cap is inserted into the open end of the belt molding base, a part of the end cap and each wall portion of the belt molding base are engaged with each other, and the end cap is in the normal position of the belt molding base. Is placed in. At that time, since the α surface of the holding portion of the end cap and the β surface of the notch portion of the belt molding base are kept in non-contact state with each other, the elastic rotation of the holding portion is not hindered by both α and β. , The holding part is housed in the notch, and the placement of the end cap in the normal position is completed. On the other hand, it is assumed that the load in the direction of pulling out the end cap from the base of the belt molding acts after the installation of the end cap is completed, and the end cap is displaced from the normal position. However, even in that case, the elastic rotation of the holding portion is suppressed or hindered by the contact between the α surface of the holding portion and the β surface of the notch portion. Therefore, even when an external force in the direction intersecting the longitudinal direction of the belt molding (particularly its holding portion) is applied to the end cap (particularly its holding portion) with the load in the direction of pulling out the end cap, α and β Since the mutual contact between both sides suppresses or hinders the elastic rotation of the end cap holding portion, it is possible to prevent the end cap from unintentionally falling off from the base of the belt molding.

According to the second aspect of the present invention, in the belt molding according to the first aspect, the holding portion of the end cap is provided with a pull-in portion that protrudes toward the lid portion on the side facing the lid portion. The retracted portion is characterized by having an inclined surface that can come into contact with a part of a peripheral wall that partitions the cutout portion.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the following effects are further obtained. That is, the end cap can be correctly arranged at the normal position by sandwiching a part of the inner side wall portion of the belt molding base between the lid portion and the inclined surface of the retracting portion of the end cap. As a result, it is possible to prevent an unnatural gap from being generated between the lid portion of the end cap and the open end (or open end surface) of the base of the belt molding.

According to the third aspect of the present invention, in the belt molding according to claim 1 or 2, the holding portion of the end cap is provided with a protruding portion that protrudes toward the inside of the vehicle along the width direction of the belt molding. The α-plane is set at a position near the lid of the protruding portion.

According to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the following effects are further obtained. That is, by providing a protruding portion on the holding portion of the end cap and setting the α plane on the protruding portion, it is possible to secure a wider area of the α plane. As a result, the contact range (or contact area) when the α-plane and β-plane are in mutual contact can be made wider, and the effect of preventing the end cap from falling off can be improved.

The invention of claim 4 is described in the belt molding according to claim 3, when the retracted portion and the protruding portion of the end cap are compared from the viewpoint of the protruding length from the holding portion along the width direction of the belt molding. The maximum protruding length (h1) of the retracted portion is smaller than the protruding length (h2) of the protruding portion.

According to the invention of claim 4, in addition to the effect of the invention of claim 3, the following effects are further obtained. That is, when a force for pulling out the end cap is applied from the base of the belt molding, the peripheral wall in contact with the inclined surface of the retracting portion is guided by the inclined surface and faces the tip of the protruding portion (that is, toward the inside of the vehicle). It may reach the tip of the end where it was. However, even in that case, by setting the maximum protrusion length (h1) of the pull-in portion to be smaller than the protrusion length (h2) of the protrusion as in this configuration, it is possible to prevent the peripheral wall from overcoming the protrusion, and therefore the end. It is possible to prevent the cap from falling off.

According to the invention of claim 5, in the belt molding according to any one of claims 1 to 4, the α surface of the holding portion is set to be inclined so as to form an acute angle with respect to the longitudinal direction of the belt molding. It is characterized by that.

According to the invention of claim 5, in addition to the effects of the inventions of claims 1 to 4, the following effects are further obtained. That is, by inclining the α surface of the holding portion so as to form an acute angle with respect to the longitudinal direction of the belt molding, it is possible to make the entire belt molding compact. In particular, the entire belt molding can be miniaturized as compared with the case where both the α plane of the holding portion and the β plane of the notch portion are designed to be parallel to the longitudinal direction of the belt molding (described later in a specific example). Masu).

As described in detail above, according to the present invention, a load in the direction of pulling out the end cap from the base of the belt molding acts, and an external force in a direction intersecting (or being induced) in the longitudinal direction of the belt molding is incidentally (or induced). Even if it reaches the end cap, it is possible to prevent the end cap from unintentionally falling off from the base of the belt molding.

The figure which shows the schematic front (the side surface of a part of a vehicle) of a vehicle door. FIG. 2 is a cross-sectional view of the base of the belt molding in II-II of FIG. (A) is a side view of the rear end portion of the belt molding base, and (B) is a partially enlarged perspective view of the vicinity of the notch portion of the belt molding base. (A) is a side view of the end cap, and (B) is a schematic cross-sectional view taken along the line IV-IV of the above figure (A). (A) is an overall perspective view of the end cap, and (B) is a partially enlarged perspective view of the end cap as viewed from another direction. (A) is a side view showing the process of inserting the end cap into the base of the belt molding, and (B) is a schematic cross-sectional view taken along the line VI-VI of the above figure (A). (A) is a side view showing a state in which the end cap has been inserted (arranged in a normal position), and (B) is a side view showing a state in which a pull-out load is applied to the end cap. An enlarged view of the area surrounded by the ellipse (dashed-dotted line) in FIG. 7 (A). FIG. 7 (A) is a diagram schematically showing a horizontal cut end face at the IX-IX line position. FIG. 6 is a schematic cross-sectional view taken along line XX in FIG. 7 (A). FIG. 6B is a schematic cross-sectional view taken along the line XI-XI in FIG. 7 (B). (A) is a side view showing the outline of another example (second embodiment) of the belt molding according to the present invention, and (B) is the first embodiment (FIGS. 1 to 11) and the second embodiment (FIG. 12) of the belt molding. (A)) is a side view for explanation in which it is partially contrasted.

Hereinafter, some embodiments according to the present invention will be described with reference to the drawings.
1 to 11 show an embodiment (first embodiment) of the present invention. As shown in FIG. 1, a belt molding 3 is attached to the outer door panel 2 constituting the lower half of the vehicle door 1 along the upper edge (belt line) thereof. The belt molding 3 according to the present invention has a long belt molding base 10 (that is, a main body portion of the belt molding 3) and an end cap 20 attached to one end portion (rear end portion in FIG. 1) of the belt molding base 10. Have.

As shown in FIG. 2, the belt molding base 10 has a vehicle outer side wall portion 11 and a vehicle inner side wall portion 12 facing each other, and a top wall portion 13 for integrally connecting these two side wall portions 11 and 12. There is. Due to these three wall portions (11 to 13), the belt molding base 10 has a substantially U-shaped cross-sectional shape that opens downward. The three wall portions (11 to 13) located near the rear end portion of the belt molding base portion 10 partition an internal space for inserting and arranging at least the main body portion of the end cap 20. Incidentally, a vehicle inner lip 14a is provided on the vehicle inner wall surface of the vehicle inner side wall portion 12, and a vehicle outer lip 14b and a holding lip 14c are provided near the lower end of the vehicle outer side wall portion 11, and the top wall portion 13 and the vehicle are provided. An upper lip 14d is provided near the joint with the inner side wall portion 12. These lips 14a to 14d are generally known. By mounting the door panel flange 2f (indicated by a virtual line) into the lower opening of the belt molding 3, the flange 2f is sandwiched between the holding lip 14c and the vehicle inner side wall portion 12. It is worn and the attachment of the belt molding 3 to the door panel 2 is completed.

The belt molding base 10 is preferably formed by extrusion molding an olefin-based thermoplastic elastomer. However, a relatively hard olefin-based thermoplastic elastomer is used for the three wall portions (11 to 13) of the belt molding base 10. On the other hand, relatively soft olefin-based thermoplastic elastomers are used for the four lips (14a to 14d) other than the three wall portions. The belt molding base 10 may be made of an elastically deformable material, and is made of an elastic material other than the olefin-based thermoplastic elastomer (for example, styrene-based thermoplastic elastomer, soft vinyl chloride, rubber, etc.). May be good.

3A and 3B are a side view and a partially enlarged perspective view of the vicinity of the rear end portion of the belt molding base 10 as viewed from the inside of the vehicle. As shown in these drawings, the belt molding base 10 has a notch 15 in a part of the vehicle inner side wall portion 12 in the vicinity of the rear end portion. That is, the cutout portion 15 is formed by cutting out a part of the vehicle inner side wall portion 12, and a plurality of peripheral wall walls 16 (mainly, a first peripheral edge extending substantially vertically) formed in the vehicle inner side wall portion 12. It is partitioned by a wall 16a, a second peripheral wall 16b extending substantially horizontally, and a third peripheral wall 16c extending substantially vertically). Then, among the peripheral walls 16 that partition the notch portion 15, the third peripheral wall 16c located near the rear end of the belt molding base 10 (that is, the lid side of the end cap 20) is provided as a receiving surface. The β surface 17 is set. The β surface 17 is an inclined surface on the inner side wall portion 12 of the vehicle that is inclined in both the vertical direction and the horizontal direction, and is not perpendicular to the longitudinal direction of the belt molding 3 and faces the top wall portion 13 side. It is positioned as a receiving surface. The role of the β-plane 17 will be described later.

4 (A) and (B) and FIGS. 5 (A) and 5 (B) outline the structure of the end cap 20 according to the present embodiment. As shown in these drawings, the end cap 20 extends substantially horizontally from the lid portion 21 and the front side surface of the lid portion 21 along the longitudinal direction of the end cap 20 (which is also the longitudinal direction of the belt molding 3). It has a main body portion 22 provided, and a holding portion 23 projecting downward in the vertical direction from a part of the main body portion 22. The lid portion 21 is a portion for closing the rear end 18 (open end) of the belt molding base portion 10, and constitutes the rearmost end portion of the end cap 20.

Incidentally, the end cap 20 is preferably formed of polybutylene terephthalate (PBT), which is a kind of thermoplastic resin. In addition to PBT, the thermoplastic resins that can be used for the end cap 20 include ABS resin, polypropylene (PP), polyacetal (POM), polyamide (PA), polyphenylene sulfide (PPS), and polyetheretherketone (PEEK). Etc. can be exemplified.

The holding portion 23 of the end cap is located near the front end of the main body portion 22 in the longitudinal direction of the belt molding 3 from the lower surface surface 22a of the top of the main body portion 22 (see FIG. 4B) toward the lower opening of the belt molding base 10. It projects in a direction that intersects with respect to a substantially right angle (that is, downward in the vertical direction). The holding portion 23 itself constitutes one elastic tongue piece, and is directed from the outside of the vehicle to the inside of the vehicle centering on the vicinity of the base of the holding portion 23 (that is, the area connected to the lower surface 22a of the top of the main body). It is elastically rotatable like a pendulum (or from the inside of the car to the outside of the car). As shown in FIG. 4B, the center of rotation when the holding portion 23 rotates is the point C located at the base of the holding portion 23. Assuming that the outer end of the vehicle at the base of the holding portion 23 is point A and the inner end of the vehicle at the base of the holding portion 23 is point B, the point C is generally the line segment AB connecting the points A and B. Corresponds to the midpoint. Further, as will be described in detail later, when the end cap 20 is attached to the belt molding base 10 at a normal position, the holding portion 23 is accommodated in the notch 15 of the belt molding base.

As can be seen from FIG. 5, a protruding portion 25 is provided near the tip end (near the lower end portion) of the holding portion 23. The protruding portion 25 projects from the holding portion 23 toward the inside of the vehicle along the width direction of the end cap 20 (which is also the width direction of the belt molding 3). Further, a pull-in portion 31 is provided at a position in the middle of the holding portion 23 in the height direction and above the protruding portion 25. The retracting portion 31 projects from the rear end side (the side facing the lid portion 21) of the holding portion 23 toward the lid portion 21. As shown in FIG. 4B, the protruding portion 25 and the retracting portion 31 are formed from the viewpoint of the protruding length along the width direction of the end cap 20 from the vertical reference line VL arbitrarily set in the holding portion 23. When comparing, the maximum protrusion length (h1) of the retractable portion 31 is set to be smaller than the protrusion length (h2) of the protrusion 25 (h1 <h2).

As can be seen from FIGS. 4A and 5, the protruding portion 25 has a shape that is bent in the middle like the bow of a ship and protrudes toward the inside of the vehicle when viewed from the inside of the vehicle. More specifically, in the side view, the front portion 25a of the protrusion 25 along the longitudinal direction of the end cap 20 extends substantially horizontally, whereas the rear portion 25b of the protrusion 25 is oblique. It is extended to. The rear portion 25b is connected to the lower side of the retracting portion 31. The protruding portion 25 composed of the front portion 25a and the rear portion 25b has an end face region 26 extending from the front portion 25a to the rear portion 25b on the lower surface side thereof (that is, near the tip of the holding portion 23). ..

The end face region 26 is a region facing the lower opening of the belt molding base 10 and developing in the longitudinal direction of the belt molding 3, and provides an end face bent in the middle. Then, an α-plane 27 is set in a part of the end face region 26 (specifically, the inclined rearward portion 25b) at a position near the lid portion of the protruding portion 25. The α surface 27 is provided as a regulation surface corresponding to the β surface 17 of the notch portion 15 of the belt molding base 10. The α-plane 27 is generally parallel to the β-plane 17 and thus provides a plane that is non-perpendicular to the longitudinal direction of the belt molding 3. The inclination angle (θ1) of the α-plane 27 and the inclination angle (θ2) of the β-plane 17 are set so as to form an acute angle (more preferably 20 to 70 °) with respect to the longitudinal direction of the belt molding 3. (See FIG. 8).

As can be seen from FIGS. 5A and 5B, the retracting portion 31 is formed as a plate-shaped projecting piece having a substantially trapezoidal shape in a plan view from above and having a predetermined thickness. The retracting portion 31 is provided with an inclined surface 32 at a position corresponding to the hypotenuse of the trapezoidal shape. The inclined surface 32 is provided as a side wall surface facing the inside of the vehicle and at the same time facing the lid side. The inclination (inclination) of the inclined surface 32 in a plan view is such that the tip end 32a (the end closest to the lid 21) of the inclined surface is located relatively outside the vehicle in the end cap width direction. The rearmost end 32b (the end farthest from the lid 21) of the inclined surface is set to be relatively located inside the vehicle in the width direction of the end cap. The inclined surface 32 of the retracting portion 31 is an inclined surface that can come into contact with a part of the peripheral wall 16 (specifically, the third peripheral wall 16c) that partitions the notch portion 15, and will be described later. It functions as a guide surface or a support surface. Incidentally, the maximum protruding length h1 of the retracting portion 31 in FIG. 4B corresponds to the protruding length at the rearmost end 32b of the inclined surface 32.

Next, the action and effect of the belt molding 3 of the present embodiment will be described with reference to FIGS. 6 to 11.

6 (A) and 6 (B) show an intermediate process when the end cap 20 is inserted into the rear end opening 18 of the belt molding base 10. In this insertion process, it is necessary to temporarily push most of the end cap 20 other than the lid portion 21 between the vehicle outer side wall portion 11 and the vehicle inner side wall portion 12 of the belt molding base 10, and as a result, FIG. As shown in B), the holding portion 23 elastically rotates clockwise from the original position (indicated by a virtual line), and the protruding portion 25 temporarily comes into contact with the wall surface of the vehicle inner side wall portion 12. Appear. The holding portion 23 in this state stores an elastic rebound force that tries to rotate counterclockwise in order to return it to its original position.

FIG. 7A shows a state in which the end cap 20 is completely inserted and the end cap 20 is placed in the “normal position”. 8, 9 and 10 are auxiliary diagrams for supplementing FIG. 7 (A). When the end cap 20 is inserted to the normal position, the holding portion 23, which has been forced to elastically rotate in the clockwise direction, reaches the notch portion 15 (see FIG. 7A). Then, the contact state between the protruding portion 25 of the holding portion 23 and the wall surface of the inner side wall portion 12 of the vehicle is released, and the holding portion 23 returns and rotates based on the above-mentioned stored elastic rebound force, and the protruding portion 25 And at least a part of the pull-in portion 31 is housed in the notch portion 15 (see FIGS. 7 (A) and 10).

Approximately in synchronization with the return rotation of the holding portion 23, the lid portion 21 of the end cap 20 abuts on the rear end 18 of the belt molding base 10, and as shown in FIG. 9, the lid portion 15 of the belt molding base 10 is contacted. The vehicle outer edge 19 of a part of the exposed vehicle inner side wall portion 12 (that is, the third peripheral wall 16c) comes into contact with the inclined surface 32 of the retracted portion 31. FIG. 9 shows a state in which the vehicle outer edge 19 is in contact with the middle position 32c of the inclined surface 32, but the vehicle outer edge 19 is not in contact with the middle position 32c from the beginning, and the end cap 20 is in contact with the middle position 32c. As it is inserted, the vehicle outer edge 19 first contacts the rearmost end 32b of the inclined surface 32, and then gradually slides relative to the rearmost end 32b on the inclined surface 32 as the end cap 20 advances (moves forward). It has moved and reached the middle position 32c. When the lid 21 of the end cap 20 comes into contact with the rear end 18 of the belt molding base 10, the end cap 20 cannot move forward any further, and the vehicle outer edge 19 stops at the middle position 32c of the inclined surface 32. Since the inclined surface 32 has an inclined angle with respect to the extending direction of a part (that is, the third peripheral wall 16c) of the vehicle inner side wall portion 12 having the vehicle outer edge 19, the end cap 20 advances. In the process in which the vehicle outer edge 19 slides relative to the inclined surface 32, the vehicle outer edge 19 presses the inclined surface 32 and the pressing force gradually weakens. Then, by the time the vehicle outer edge 19 reaches the middle position 32c of the inclined surface 32, the repulsive elasticity corresponding to the magnitude of the pressing force is applied to the holding portion 23.

The rebound resilience acts as a force that pulls the entire end cap 20 forward (that is, in the direction opposite to the lid portion 21). Then, between the lid portion 21 of the end cap 20 and the inclined surface 23 (the contact point 32c of the vehicle outer edge 19), a section of the vehicle inner side wall portion 12 (that is, the rear end 18 of the belt molding base 10 and a notch). The section between the portion 15 and the portion 15) is strongly sandwiched, and as a result, the end cap 20 is positioned and arranged in the “normal position” with respect to the belt molding base 10 without rattling. In other words, the engagement relationship between the lid portion 21 of the end cap and the rear end 18 of the belt molding base, and the engagement between the inclined surface 32 of the retracting portion 31 of the end cap and the third peripheral wall 16c of the belt molding base. Based on the relationship, the end cap 20 is uniquely arranged in a regular position with respect to the belt molding base 10.

When the end cap 20 is arranged at the normal position, as shown in FIG. 8 (enlarged view), the β surface 17 provided on the inner side wall portion 12 of the vehicle constituting the notch portion 15 of the base of the belt molding and the end cap The α-plane 27 provided on the holding portion 23 side of the above is in a parallel facing relationship with each other, and both surfaces (17, 27) hold a non-contact state (that is, a separated state). The meaning of this non-contact state (separation state) will be described with reference to FIG.

As shown in FIG. 10, the outer and upper corners (corner tops) of the vehicle inner side wall portion 12 provided with the β surface 17 are designated as “D”, and the protruding portion 25 provided with the α surface 27. The inner and lower corners (top of the corner) are designated as "E". According to the present embodiment, the line segment CD connecting the point C and the angle D, which is the center of rotation of the holding portion 23, is longer than the line segment CE connecting the point C and the angle E (CE <CD). Therefore, even when the holding portion 23 rotates around the base thereof, there is no possibility that the angle E mechanically interferes with a part of the inner side wall portion 12 of the vehicle, and the holding portion 23 can freely rotate. Permissible. Therefore, when the end cap 20 is inserted into the belt molding base 10 and the end cap 20 reaches the normal position, at least a part of the holding portion 23 and the structure (protruding portion 25 and retracting portion 31) associated therewith is notched. It can be accommodated in 15, and the end cap 20 can be stably arranged in the normal position.

In contrast to FIG. 7A, FIG. 7B shows a state in which a pull-out load acts on the end cap 20 and the end cap 20 is slightly displaced rearward from the normal position. FIG. 11 is an auxiliary diagram for supplementing FIG. 7 (B). When a load (pulling force) in the direction of pulling out the end cap 20 acts, the β-plane 17 and the α-plane 27, which are separated from each other, come into contact with each other due to the rearward displacement of the end cap 20. To. On the other hand, a gap having a length corresponding to the rearward displacement is generated between the lid portion 21 of the end cap and the rear end 18 of the belt molding base. When the β surface 17 and the α surface 27 come into contact with each other, further rearward displacement of the end cap 20 is prevented, and further expansion of the gap is prevented.

The meaning of the contact state (contact state) between the α-plane 27 and the β-plane 17 will be described with reference to FIG. In addition, "D" and "E" in FIG. 11 have the same meaning as "D" and "E" in FIG. As shown in FIG. 11, in a state where the α-plane 27 and the β-plane 17 are in mutual contact, the line segment CD connecting the point C and the angle D, which is the center of rotation of the holding portion 23, is the point C and the angle E. It is shorter than the line segment CE connecting the two (CD <CE). Therefore, in such a mutual contact state, even if a force for rotating the holding portion 23 in the clockwise direction (that is, an external force in a direction intersecting the longitudinal direction of the belt molding 3) is exerted on the holding portion 23. The holding portion 23 is restricted from rotating due to the dimensional relationship (CD <CE) as described above. Therefore, when the belt molding 3 of the present embodiment is in the state shown in FIGS. 7B and 11, an external force in a direction intersecting the longitudinal direction of the belt molding is generated as a load is generated in the direction of pulling out the end cap 20. Even if it occurs incidentally, it is possible to prevent the end cap 20 from falling off unintentionally.

[Summary of effects, etc. of this embodiment (first embodiment)]
According to the present embodiment, when the end cap 20 is inserted into the open end of the belt molding base 10 and placed at the regular position of the belt molding base 10, the α surface 27 on the end cap side and the notch side of the belt molding base 10 are arranged. It keeps a non-contact state (separated state) from the β surface 17 of the above. Therefore, the elastic rotation of the holding portion 23 is not hindered by both α and β, and at least a part of the holding portion 23 and its accompanying structures (protruding portion 25 and retracting portion 31) is accommodated in the notch portion 15. Then, the end cap 20 can be arranged in the normal position. On the other hand, even when the load in the direction of pulling out the end cap 20 from the belt molding base 10 acts after the end cap 20 is installed and the end cap 20 is displaced rearward from the normal position, the α surface 27 on the end cap side is notched. By abutting on the β surface 17 on the portion side, the elastic rotation of the holding portion 23 is suppressed or hindered. Therefore, when an external force in a direction intersecting the longitudinal direction of the belt molding 3 is applied to the end cap 20 (particularly to the holding portion 23) with the load in the pulling direction of the end cap 20. However, since the mutual contact between both α and β suppresses or hinders the elastic rotation of the end cap holding portion 23, it is possible to prevent the end cap 20 from unexpectedly falling off from the belt molding base 10. it can.

According to the present embodiment, the end cap 20 is sandwiched between the lid portion 21 of the end cap 20 and the inclined surface 32 of the retracting portion 31 with a part of the inner side wall portion 12 of the belt molding base 10. It can be placed in the regular position. Then, it is possible to prevent an unnatural gap from being generated between the lid portion 21 of the end cap 20 and the rear end 18 (open end) of the belt molding base portion 10.

According to the present embodiment, by providing the protruding portion 25 on the holding portion 23 of the end cap 20 and setting the α surface 27 on the protruding portion 25, it is possible to secure a wider area of the α surface 27. .. As a result, the contact range (or contact area) when the α-plane 27 and the β-plane 17 are in mutual contact can be made wider, and the effect of preventing the end cap 20 from falling off can be improved.

In the present embodiment, since the retractable portion 31 is provided with the inclined surface 32, the inclined surface 32 of the retractable portion is in contact with the inclined surface 32 when a force for pulling out the end cap 20 is applied from the belt molding base 10. 3 The peripheral wall 16c is guided by the inclined surface 32, extends beyond the rearmost end 32b (FIG. 9) of the inclined surface, and further reaches the tip of the protruding portion 25 (that is, the tip of the end facing the inside of the vehicle). As a result, there is a concern that the end cap 20 may fall off from the belt molding base 10. In this respect, in the present embodiment, since the maximum protrusion length (h1) of the retractable portion 31 is set to be smaller than the protrusion length (h2) of the protrusion 25 as described above, the third peripheral wall 16c makes the protrusion 25 smaller. It is possible to prevent the situation of getting over, and therefore it is possible to prevent the end cap 20 from falling off.

[Change example]
The present invention is not limited to the above embodiment, and the structure may be appropriately modified. In the above embodiment (first embodiment), both the α surface 27 on the holding portion 23 side and the β surface 17 on the notch portion 15 side are set to be inclined so as to form an acute angle with respect to the longitudinal direction of the belt molding 3. For example, the design may be as shown in another example (second embodiment) of FIG. 12 (A). That is, as shown in FIG. 12 (A), both the α surface 27 on the holding portion 23 side and the β surface 17 on the notch portion 15 side are designed to extend horizontally along the longitudinal direction of the belt molding 3 (that is, the belt molding 3). It may be designed so as not to be inclined with respect to the longitudinal direction). In this case, the end face region 26 at the tip (lower end in the figure) of the holding portion 23 or the protruding portion 25 becomes a single horizontal plane along the longitudinal direction of the belt molding 3 and is located behind the end face region 26. The α-plane 27 is also a horizontal plane parallel to the longitudinal direction of the belt molding 3. The β surface 17 provided on a part of the inner side wall portion 12 of the vehicle is also a horizontal plane parallel to the longitudinal direction of the belt molding 3. However, even if it is configured as shown in FIG. 12 (A), almost the same effect as that of the first embodiment can be obtained. Incidentally, FIG. 12A shows a state in which a load in the direction of pulling out the end cap 20 is applied, and corresponds to FIG. 7B in the first embodiment.

FIG. 12B is a schematic view comparing the first embodiment and the second embodiment in a state where a load in the direction of pulling out the end cap 20 is applied. The left side of FIG. 12B is the first embodiment, and the right side is the second embodiment, which are drawn on the left and right with the heights of the roots of the holding portions 23 aligned. As can be seen from FIG. 12B, the first embodiment in which both α and β are inclined is inside the vehicle by the height difference ΔH as compared with the second embodiment in which both α and β are horizontally flattened. The vertical dimension of the side wall portion 12 can be reduced. In other words, in order to embody the β surface 17 as a horizontal plane, it is necessary to increase the vertical dimension of the vehicle inner side wall portion 12 by the height difference ΔH. That is, inclining both α and β both sides (17, 27) so as to form an acute angle with respect to the longitudinal direction of the belt molding as in the first embodiment is as follows as in the second embodiment. , 27) are both advantageous in reducing the size / compactness of the entire belt molding as compared with the case where the belt molding is made horizontal parallel to the longitudinal direction of the belt molding.

1 Vehicle door 2 Door panel 3 Belt molding 10 Belt molding base 11 Vehicle outer side wall 12 Vehicle inner side wall 13 Top wall 15 Notch 16 (16a, b, c) Peripheral wall 17 β surface as receiving surface 18 Belt molding Rear end of base (open end)
20 End cap 21 Lid part 22 Main body part 23 Holding part 25 Protruding part 26 End surface area 27 α surface as a regulation surface 31 Retracting part 32 Sloping surface of the retracting part

Claims (5)

A belt molding that is attached along the upper edge of the door panel of a vehicle door.
The belt molding has a long belt molding base and an end cap attached to at least one end of the belt molding base.
The end cap includes a lid for closing the open end of the base of the belt molding, a main body extending from the lid along the longitudinal direction of the belt molding, and a holding portion protruding from the main body. And have
The belt molding base has a vehicle outer side wall portion and a vehicle inner side wall portion facing each other, and a top wall portion for integrally connecting these two side wall portions, and the belt molding base is lowered by these three wall portions. It has a substantially U-shaped cross-sectional shape that opens to the side, and at least the internal space for inserting and arranging the main body of the end cap is partitioned.
The belt molding base has notches at least in at least a part of the inner side wall of the vehicle at at least one of both ends thereof.
The notch is partitioned by a peripheral wall formed on the inner side wall of the vehicle, and the peripheral wall partitioning the notch is formed by the longitudinal length of the belt molding at a position on the lid side of the end cap. The β surface is set as a receiving surface that is not perpendicular to the direction.
The holding portion of the end cap projects from the main body portion toward the lower opening of the belt molding base in a direction intersecting the longitudinal direction of the belt molding, and the holding portion is elastic around the base thereof. Further, when the end cap is attached to the base of the belt molding in a normal position, the holding portion is accommodated in the notch.
Near the tip of the holding portion, there is an end face region extending in the longitudinal direction of the belt molding while facing the lower opening of the belt molding base, and a part of the end face region is a notch of the belt molding base. The α plane is set as the regulation plane corresponding to the β plane of the part, and this α plane is not perpendicular to the longitudinal direction of the belt molding.
When the end cap is placed in the normal position, the α-plane of the holding portion and the β-plane of the notch portion remain in non-contact state with each other.
When a load in the direction of pulling out the end cap acts from the base of the belt molding and the end cap is displaced from the normal position, the α surface of the holding portion can come into contact with the β surface of the notch portion. Belt molding featuring. The holding portion of the end cap is provided with a pull-in portion that projects toward the lid portion on the side facing the lid portion, and the pull-in portion is a part of a peripheral wall that partitions the notch portion. The belt molding according to claim 1, wherein the belt molding has an inclined surface that can be contacted. The holding portion of the end cap is provided with a protruding portion that protrudes toward the inside of the vehicle along the width direction of the belt molding, and the α-plane is set at a position closer to the lid portion of the protruding portion.
The belt molding according to claim 1 or 2. When comparing the retracted portion and the protruding portion of the end cap from the viewpoint of the protruding length from the holding portion along the width direction of the belt molding, the maximum protruding length (h1) of the retracted portion is the protruding length of the protruding portion (h1). The belt molding according to claim 3, wherein the belt molding is smaller than h2). The belt molding according to any one of claims 1 to 4, wherein the α-plane of the holding portion is set to be inclined so as to form an acute angle with respect to the longitudinal direction of the belt molding.

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