JP7226606B2 - engagement structure - Google Patents

Description

The present invention relates to an engagement structure.

Conventionally, as an engaging structure, the one described in Patent Document 1 is known. In the engagement structure described in Patent Document 1, the convex portion 22 of the panel member 2 is locked such that the locking claw portion 11 of the door trim 1 engages with the peripheral edge portion 25 facing the convex portion 22 of the hole portion 20 . It is disclosed that when the claw portion 11 is inserted into the hole portion 20, it fits into the recessed portion 13 of the door trim 1. As shown in FIG. It is also described that such a configuration can restrict the relative movement between the panel member 2 in the insertion direction with respect to the door trim 1 and the direction perpendicular to the insertion direction.

Japanese Patent Application Laid-Open No. 2009-222108

However, in the configuration disclosed in Patent Document 1, since the hole 20 of the panel member 2 is surrounded by the panel member 2 over the entire circumference, when the claw is inserted, the panel member 2 is difficult to bend, and the insertion is high. I needed strength. On the other hand, even if an attempt is made to reduce the insertion force, the protrusion height of the door trim 1 cannot be reduced, and a large space is required. Further, when a force is applied to the door trim 1 in a direction opposite to the insertion direction of the locking claw portion 11 , the peripheral portion of the panel member 2 that contacts the locking claw portion 11 moves away from the locking claw portion 11 . flexed, and the removal force was low.

SUMMARY OF THE INVENTION The present invention has been completed based on the above circumstances, and one of the objects thereof is to provide an engaging structure which is space-saving and has a low insertion force and a high withdrawal force.

The present invention is an engagement structure between a first member and a second member, wherein the first member includes a claw portion projecting in one direction, and the second member is capable of receiving the claw portion. and a receiving portion having a hole formed through the projecting end thereof. a support portion located on the opposite side of the stop portion and supporting the claw portion; and a pair of slits connected to the hole portion between both side ends of the locking portion and both side ends of the support portion. and the claw is engaged with the locking portion by inserting the claw into the hole.

According to such an engaging structure, by providing the slit, the receiving portion is divided into the supporting portion and the engaging portion with the hole interposed therebetween. Therefore, when the claw is inserted into the hole, the locking portion separated from the support portion is slidably pressed by the claw and easily bends in the direction in which the hole expands. Therefore, the insertion force is lower than that of the engaging structure having a receiving portion without slits. In addition, since the slit is provided, it is possible to configure the engaging portion separated from the supporting portion to fall toward the supporting portion. It restricts the locking part separated from the part from collapsing toward the supporting part (inwardly collapsing) and pulling out the claw part. Therefore, the removal force becomes higher than that of the conventional engagement structure, and it becomes difficult to remove the first member from the second member. Furthermore, in order to provide an engagement structure that is easy to insert and hard to come off, there is no need to provide a high protrusion height from each member of the claw portion and the receiving portion, or to widen the left and right widths of the claw portion. A relatively smaller engaging structure can be formed than in the prior art. Therefore, the space for providing the engaging structure can be saved.

In the above configuration, the locking portion includes a piece-like portion extending along the insertion direction of the claw portion into the hole, and the claw portion extends in the insertion direction of the claw portion into the hole. It has a ridge that climbs over the ridge and engages with the ridge, the ridge includes a locked surface that governs the engagement by coming into contact with the ridge, and the claw portion is engaged with the ridge. In a state where the piece-like portion is engaged with the piece-like portion, an axis in an extending direction of the piece-like portion is formed to be tilted toward the crest of the mountain portion with respect to the perpendicular to the engaged surface. can do. According to such an engaging structure, when the claw portion is pulled out from the inserted state, a force toward the supporting portion acts on the tip of the tabular portion, and the tabular portion falls toward the supporting portion. As a result, it is possible to prevent the claw portion from being pulled out due to the tip of the tabular portion slipping on the locked surface. Therefore, it is possible to form an engaging structure with a higher removal force.

In the above configuration, the claw portion has a supported surface arranged on the back side of the surface on which the peak portion is arranged, and the first member side of the end of the surface of the supported surface that contacts the support portion. and a rib extending from the claw portion to the first member in the vertical direction. According to such an engaging structure, since there are no ribs up to the end of the surface of the supported surface that abuts on the supporting portion, the supporting portion and the supported surface can be brought into contact with each other. Therefore, unlike the case where the supported surface has ribs up to the tip of the claw portion, the support portion is not scraped by the ribs when the claw portion is inserted into the hole. In addition, since the surfaces can be in contact with each other, the frictional force increases and the removal force increases. Furthermore, since the claw portion has a rib on the side of the first member from the end of the surface in contact with the supporting portion in the supported surface, the base of the claw portion is broken by the repulsive force received from the locking portion when the claw portion is inserted. can be prevented.

ADVANTAGE OF THE INVENTION According to this invention, even if it is space-saving, it becomes possible to provide the engagement structure with low insertion force and high extraction force.

1 is a perspective exploded view of a door according to Embodiment 1 of the present invention; FIG. A perspective view showing a claw portion and a receiving portion View of the claw viewed from the right Top view of the claw A view of the claw portion (shaded) and the receiving portion viewed from the projecting tip side in the engaged state. Cross-sectional view in the engaged state (cross section along line AA in FIG. 5) Another cross-sectional view in the engaged state (cross section along line BB in FIG. 5) Explanatory diagram showing the axis in the extension direction of the spicule (corresponding to the BB line cross section in FIG. 5) Cross-sectional view in the engaged state (CC line cross section in FIG. 5) The perspective view which shows the nail|claw part and the receiving part which concern on Embodiment 2. The perspective view which shows the nail|claw part and the receiving part based on Embodiment 3. The figure which shows the relationship between the claw part and the receiving part before engagement about Embodiment 3.

<Embodiment 1>
Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 9. FIG. In FIG. 2, the lower left side is the front side, the upper right side is the rear side, the upper left side is the left side, the lower right side is the right side, the upper side is the upper side, and the lower side is the lower side.

A door 1 installed in a vehicle (vehicle) includes, as shown in FIG. A first member (door trim) 10 and a second member (ornament) 30 attached from the back side of the first member 10 and forming a part of the design surface of the first member 10 are provided. The first member 10 includes a plurality of claw portions 11 protruding in one direction from the rear surface thereof toward the outer panel 2 side. As shown in FIGS. 1 and 2, the second member 30 protrudes in one direction toward the outer panel 2 so as to be able to receive the claw portion 11, and a hole portion 34 is formed through the protruding end of the second member 30. A plurality of receptacles 31 are provided.

2 and 3, the claw portion 11 has a supported surface 16 forming a lower surface, an upper surface 17 opposite to the supported surface 16, and both ends of the supported surface 16 and the upper surface 17 in the left-right direction. a side surface 18 that connects the two, a mountain-shaped peak portion 12 that is arranged on the top surface 17 side at the tip end and protrudes upward, and a base portion 25 that is located rearward (first member 10 side) in the front-rear direction. . In addition, the tip of the claw portion 11 and the upper surface 17 are provided with recesses 20 .

As shown in FIGS. 2 and 5, the receiving portion 31 has a plate-like locking portion 32 consisting of a piece-like portion 36 extending along the direction in which the claw portion 11 is inserted into the hole portion 34, and the hole portion 34 is sandwiched therebetween. is located on the opposite side (lower side) of the locking portion 32, and covers the lower half of the hole portion 34 (that is, as shown in FIG. 5, when viewed from the protruding tip side, it has a U-shape recessed downward). Between the support portion 33, both side ends of the locking portion 32 in the left-right direction, and both side ends of the support portion 33 facing upward in the U-shape (that is, as shown in FIG. 5, when viewed from the projecting tip side) and a space arranged on the upper right and upper left of the receiving portion 31 ), and a pair of slits 35 connected to the hole portion 34 . As shown in FIGS. 2, 6 and 7, the opening width of the hole portion 34 in the vertical direction is formed to be smaller than the total thickness of the claw portion 11 and the peak portion 12 in the vertical direction.

2 to 4, 7 and 9, the claw portion 11 of the first member 10 can contact the supporting portion 33 of the receiving portion 31 of the second member 30 on the supported surface 16. A plate-shaped lower rib 26 extending downward from the end of the surface of the first member 10 (a rib extending from the claw portion to the first member in the vertical direction), and on the upper surface 17, the claw A plate-like upper rib 27 (a rib extending from the claw portion to the first member in the vertical direction) extending upward from the portion 11 of the first member 10, and the claw portion 11 on the side surface 18 a plate-like lateral rib 28 extending from the first member 10 in the left-right direction.

As shown in FIGS. 3 and 8, the peak portion 12 extends upward and obliquely forward from the upper surface 17, and extends from the locked surface 13, which is inclined forward to form a slope, and the front end portion of the upper surface 17. A sliding contact surface 14 extending upward and obliquely rearward and inclined rearward (to the side of the first member 10) to form a slope; , provided. Here, as shown in FIG. 8, when the claw portion 11 is arranged in front of the locking portion 32 (when the claw portion 11 is inserted into the hole portion 34), the extension direction axis 37 of the piece-like portion 36 is , is inclined toward the peak 15 from a line 19 perpendicular to the surface 13 to be engaged. It should be noted that the inclination of the axis 37 toward the summit 15 may be only 1 degree with respect to the vertical line 19 .

Next, a manner in which the claw portion 11 is engaged with the locking portion 32 by inserting the claw portion 11 into the hole portion 34 will be described. As shown in FIG. 1 , when attaching the second member 30 to the first member 10 , first, the claw portion 11 is inserted into the receiving portion 31 . As shown in FIGS. 2 and 7, the opening width of the hole portion 34 in the vertical direction is smaller than the total thickness of the claw portion 11 and the peak portion 12 in the vertical direction. When the claw portion 11 is inserted, the sliding contact surface 14 slides upward on the locking portion 32 to elastically deform it, and the claw portion 11 enters the hole portion 34 . Due to this sliding pressure, the claw portion 11 receives a downward repulsive force from the engaging portion 32, but since the supported surface 16 is supported by the supporting portion 33, the engaging portion 32 is elastically deformed while resisting the repulsive force. can be made

As the claw portion 11 is continued to be inserted into the receiving portion 31, as shown in FIGS. The stop surface 13 engages with the piece 36 (this state is called an engaged state or an inserted state). Thereby, the second member 30 is attached to the first member 10 . In addition, FIG. 5 is a view of the engaged state viewed from the projecting tip side, and the peak portion 12 is located in front of the sheet-like portion 36 in the plane of the drawing. At this time, since the lower rib 26 collides with the inner side of the second member 30, the claw portion 11 does not protrude from the receiving portion 31 more than necessary, and the engagement structure is stabilized.

Next, the effects of this embodiment will be described. The receiving portion 31 includes a locking portion 32 that can be engaged with the claw portion 11, a support portion 33 that is located on the opposite side of the locking portion 32 across the hole portion 34 and supports the claw portion 11, and a locking portion. A pair of slits 35 connected to the hole portion 34 are provided between both side ends of the support portion 32 and both side ends of the support portion 33. It is characterized by engaging with 32. According to such an engaging structure, the receiving portion 31 is divided into the supporting portion 33 and the engaging portion 32 with the hole portion 34 interposed therebetween by providing the slit 35 . Therefore, when the claw portion 11 is inserted into the hole portion 34, the locking portion 32 separated from the support portion 33 is slidably pressed by the claw portion 11 and easily bends in the direction in which the hole portion 34 expands. Therefore, the insertion force is lower than that of the engaging structure having the receiving portion 31 without the slit 35 . In addition, since the slit 35 is provided, the locking portion 32 separated from the support portion 33 can be configured to fall toward the support portion 33. Even if an attempt is made to pull out, the locking portion 32 separated from the support portion 33 falls (falls inward) toward the support portion 33, thereby restricting the claw portion 11 from being pulled out. Therefore, the removal force becomes higher than that of the conventional engaging structure, and it becomes difficult to remove the first member 10 from the second member 30 . Furthermore, in order to provide an engagement structure that is easy to insert and hard to come off, it is not necessary to provide a high projection height from each member of the claw portion 11 and the receiving portion 31, or to widen the left and right width of the claw portion 11. Therefore, it is possible to form a relatively smaller engaging structure than conventionally. Therefore, the space for providing the engaging structure can be saved.

In the above configuration, the locking portion 32 includes a piece-like portion 36 extending along the insertion direction of the claw portion 11 into the hole portion 34 , and the claw portion 11 extends in the insertion direction of the claw portion 11 into the hole portion 34 . It has a peak portion 12 that rides over the strip portion 36 and engages with the strip portion 36, and the peak portion 12 is in contact with the strip portion 36, and has a locked surface 13 that governs the engagement, When the claw portion 11 is engaged with the plate portion 36 , the axis 37 in the extending direction of the plate portion 36 is positioned closer to the peak 15 of the peak portion 12 than the line 19 perpendicular to the engaged surface 13 . can be formed so as to be inclined toward the According to such an engaging structure, when the claw portion 11 is pulled out from the inserted state, a force toward the support portion 33 is applied to the tip of the plate portion 36 , and the plate portion 36 falls toward the support portion 33 . As a result, it is possible to prevent the claw portion 11 from being pulled out due to the tip of the piece-like portion 36 slipping on the locked surface 13 . Therefore, it is possible to form an engaging structure with a higher removal force.

In the above configuration, the claw portion 11 is arranged on the first member 10 side of the supported surface 16 disposed on the back side of the surface on which the peak portion 12 is disposed, and the end of the surface of the supported surface 16 that contacts the support portion 33 . and a lower rib 26 extending from the claw portion 11 to the first member 10 in the vertical direction. According to such an engagement structure, since there is no lower rib 26 up to the end of the surface of the supported surface 16 that abuts on the supporting portion 33, the supporting portion 33 and the supported surface 16 can be in contact with each other. . Therefore, unlike the case where the supported surface 16 has the lower ribs 26 up to the tip of the claw portion 11 , the support portion 33 is not scraped by the lower ribs 26 when the claw portion 11 is inserted into the hole portion 34 . In addition, since the surfaces can be in contact with each other, the frictional force increases and the removal force increases. Furthermore, since the claw portion 11 has the lower rib 26 on the side of the first member 10 from the end of the surface of the supported surface 16 that contacts the support portion 33, the repulsive force received from the locking portion 32 when the claw portion 11 is inserted. Therefore, it is possible to prevent the base 25 of the claw portion 11 from breaking.

<Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to FIG. This embodiment exemplifies an engagement structure in which the configurations of the claw portion and the receiving portion are different from those of the first embodiment. In addition, in this embodiment, the same reference numerals are used for the same portions as those in the above-described embodiment, and overlapping descriptions of structures, actions, and effects are omitted.

The receiving portion 231 includes a plate-like locking portion 232 formed of a piece-shaped portion 236 extending along the insertion direction of the claw portion 211 into the hole portion 234 , and the opposite side (lower side) of the locking portion 232 with the hole portion 234 interposed therebetween. ) and covers the lower half of the hole 234 (that is, when viewed from the protruding tip side, it has a U-shape recessed downward), and both side ends of the locking portion 232 in the left-right direction. A pair of slits that are continuous with the hole 234 between both sides of the U-shaped portion 233 facing upward (that is, spaces arranged on the upper right and upper left of the receiving portion 231 when viewed from the protruding tip side). 235 , and a connecting portion 240 arranged on the far side (second member 230 side) of the slit 235 and connecting the second member 230 , the locking portion 232 , and the supporting portion 233 .

As a result, the vertical movement of the engaging portion 232 can be adjusted by adjusting the height of the forward projection of the connecting portion 240 from the second member 230, so that the engaging portion 232 can easily be elastically deformed. can be set. Therefore, it is possible to adjust the strength of the insertion force and the withdrawal force.

Further, the claw portion 211 of the first member 210 extends upward from the position corresponding to the end of the surface of the receiving portion 231 of the second member 230 that can come into contact with the support portion 233 on the upper surface 217 . and a plate-like lateral rib 228 extending from the claw portion 211 in the lateral direction of the first member 210 on the side surface 218 .

<Embodiment 3>
Next, Embodiment 3 of the present invention will be described with reference to FIGS. 11 and 12. FIG. This embodiment exemplifies an engagement structure that differs from the above-described embodiment in the configuration of the claw portion and the receiving portion. In addition, in this embodiment, the same reference numerals are used for the same portions as those in the above-described embodiment, and overlapping descriptions of structures, actions, and effects are omitted.

As shown in FIG. 11, the claw portion 311 connects the supported surface 316 that forms the lower surface, the upper surface 317 that is the opposite surface of the supported surface 316, and the supported surface 316 and the upper surface 317 at both ends in the horizontal direction. A side surface 318 that is a surface, and mountain-shaped peak portions 312 that are arranged on both the supported surface 316 side and the upper surface 317 side at the tip of the claw portion 311 and protrude downward and upward, respectively.

The receiving portion 331 includes a plate-like locking portion 332 formed of a piece-shaped portion 336 extending along the insertion direction of the claw portion 311 into the hole portion 334 , and the opposite side (lower side) of the locking portion 332 with the hole portion 334 interposed therebetween. ), a plate-like member extending along the insertion direction of the claw portion 311 into the hole portion 334 so as to be paired with the locking portion 332 (that is, having a shape like a two when viewed from the projecting tip side). ) between the support portion 333 and both side ends of the locking portion 332 in the left-right direction and both side ends of the support portion 333 in the left-right direction (that is, arranged on the left and right sides of the hole portion 334 when viewed from the projecting tip side). space) and a pair of slits 335 connected to the hole 334 .

As shown in FIG. 12, each peak portion 312 extends downwardly and upwardly from a supported surface 316 and an upper surface 317 and obliquely forward, respectively, and is inclined forward to form a sloped surface 313 to be engaged. A sliding contact surface 314 extending upward, downward, and obliquely rearward from the front end portions of the support surface 316 and the upper surface 317 , and inclined rearward (toward the first member 310 ) to form a slope, and a locked surface 313 . and a ridge line (peak) 315 where the sliding contact surface 314 intersects. That is, when the claw portion 311 is viewed from the direction of the side surface 318, the tip thereof is shaped like an arrowhead.

As a result, the locking portion 332 and the support portion 333 can be configured to fall inward (toward the hole portion 334). This restricts the locking portion 332 and the support portion 333 from falling inward and pulling out the claw portion 311 .

<Other embodiments>
The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. can be implemented with various changes.

(1) The shape of the support portion can be changed as appropriate in addition to the above embodiments. In Embodiment 1, the support portion has a shape that covers the lower half of the hole, but the shape is not limited to this. That is, it is sufficient that the support portion has a U-shape or a two-shape when viewed from the projecting tip side, and a slit can be secured in the receiving portion.

(2) The combination of configurations of the receiving portion and the claw portion is not limited to the above embodiment, and can be changed as appropriate. The configuration of the receiving portion and the claw portion may be combined, for example, by combining the claw portion having the ribs shown in the first embodiment and the receiving portion having the connecting portion shown in the second embodiment. can.

(3) The engagement structure illustrated in each of the above embodiments is not limited to being provided for vehicles, and may be provided for various vehicles that require engagement between members. For example, the engagement structure is used in the engagement process between members in vehicles such as trains and amusement vehicles as ground vehicles, airplanes and helicopters as flying vehicles, and ships and submarines as sea and undersea vehicles. can be applied.

DESCRIPTION OF SYMBOLS 1... Door 2... Outer panel 10, 210, 310... First member (door trim) 11, 211, 311... Claw portion 12, 312... Mountain portion 13, 313... Locked surface 14, 314 Sliding contact surface 15, 315 Ridge line (peak) 16, 316 Supported surface 17, 217, 317 Upper surface 18, 218, 318 Side surface 19 Perpendicular line 20 Undercut 25, 225... Base 26... Lower rib 27, 227, 327... Upper rib 28... Lateral rib 30, 230, 330... Second member (ornament) 31, 231, 331... Receiving portion 32, 232, 332 Locking portion 33,233,333 Support portion 34,234,334 Hole portion 35,235,335 Slit 36,236,336 Piece-shaped portion 37 Shaft 240 Connecting portion.

Claims (5)

An engagement structure between the first member and the second member,
The first member has a claw portion protruding in one direction from a facing surface facing the second member,
The second member has a receiving portion projecting in the one direction from the opposite surface located on the opposite side of the opposing surface so as to be able to receive the claw portion, and having a hole formed through the projecting end thereof. prepared,
The receiving part is
a locking portion engageable with the claw portion;
a support portion positioned on the opposite side of the locking portion across the hole portion and supporting the claw portion;
a pair of slits connected to the hole between both side ends of the locking portion and both side ends of the support portion;
By inserting the pawl into the hole, the pawl enters an engagement state in which the pawl engages with the locking portion,
The claw portion has lateral ribs on its side surface,
The engaging structure, wherein the lateral rib has a distal end projecting in the one direction from the opposite surface in the engaged state. 2. The engagement structure according to claim 1, wherein the tip portion has an outer corner rounded in plan view . The claw portion, in the engaged state,
an upper surface facing the locking portion and provided with a mountain portion that engages with the locking portion;
a lower surface facing the support,
3. The engaging structure according to claim 1, wherein the lateral ribs are located closer to the upper surface than to the lower surface on the side surface. 4. The engagement structure according to any one of claims 1 to 3 , wherein the lateral rib extends in a tapered shape from the side surface toward the facing surface. The second member has an opening through which the lateral rib is inserted,
The engagement structure according to any one of claims 1 to 4 , wherein the opening edge of the opening has a round shape on the opposing surface side.

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