JP6125307B2 - Insertion member - Google Patents

Description

  According to the present invention, an opposing claw portion that can be elastically deformed is inserted into an attachment hole formed in a mating member such as a bracket, and an engagement portion provided on the claw portion is engaged with and fixed to the inner peripheral edge portion of the attachment hole. It relates to an insertion member.

  In the insertion member shown in the following Patent Document 1, by inserting a pair of elastically deformable opposing claw portions (insertion protrusions) into the attachment hole, the locking portion formed on the opposing claw portion is the attachment hole. It engages with the back side peripheral edge. In addition, a defining means that regulates the elastic deformation of the claw portion including the locking portion to a predetermined amount or less is integrally formed at an appropriate position from the tip to the base of the opposing claw portion, and the locking portion is engaged. It cannot be easily removed from the hole.

JP 2000-220618 A

  However, in the insertion member shown in Patent Document 1, the elastic deformation of the claw portion is regulated to a predetermined amount or less by the defining means, so that it is difficult to insert into the mounting hole.

  The present invention has been made in consideration of the above-mentioned facts, and an object thereof is to obtain an insertion member that is not easily detached from the mounting hole and can be easily inserted into the mounting hole.

The insertion member according to the first aspect of the present invention is erected at a position facing each other from a base attached to the mating member and a contact surface of the base contacting the mating member, and elastically deforms in a direction approaching each other. Accordingly, at least a pair of opposed claw portions inserted into the mounting holes formed in the mating member and a radially outward projection formed at the distal end side of the pair of opposed claw portions, respectively, a pair of engaging portions that engage the parts, the shape as viewed from the insertion direction is parallel to a straight line relative to the direction of elastic deformation of the radially inward of the pair of engaging portions, both ends the opposing It is connected at a right angle at a position including at least the tip of the claw portion, wherein with opposing pawl portion is prevented from being elastically deformed in the radially inward elastic deformation of the oblique radially inward of the opposed claw portion Allowable deformation prevention part and Having.

In the insertion member according to the first aspect, at least the pair of opposing claw portions are inserted into the mounting holes formed in the counterpart member. At this time, since the shape viewed from the insertion direction of the deformation preventing portion is a straight line parallel to the radially inward elastic deformation direction of the pair of engaging portions, the base is inserted in the mounting hole. If the pressing operation is simply performed, the opposing claw portion is prevented from being elastically deformed radially inward due to the radial outward of the deformation preventing portion, and thus cannot be inserted into the mounting hole. Therefore, the base is pressed in the direction of insertion into the mounting hole and rotated around the axis in the direction of insertion, whereby the deformation preventing portion in which the opposing claw portion is allowed to be elastically deformed in the oblique radial direction. And the connection state of the opposing claw portion changes from a right angle state to an inclined state. As a result, the opposing claw portions are elastically deformed in a direction approaching each other, so that the opposing claw portions can be easily inserted into the mounting holes. In addition, when the engaging portion passes through the mounting hole and engages with the inner peripheral edge of the mounting hole, the opposing claw portion returns to the original position, and the connection state between the deformation preventing portion and the opposing claw portion is a right angle state. Return to. For this reason, when the engaging portion of the opposing claw portion is engaged with the mounting hole, an external force that tries to remove the opposing claw portion from the mounting hole, for example, an external force inward in the radial direction is applied. However, it is possible to prevent the opposing claw portions from being elastically deformed inward in the radial direction, that is, in a direction approaching each other, by the radial tapping of the deformation preventing portion. As a result, it is difficult to come off the mounting hole in a normal use state.

  According to a second aspect of the present invention, in the insertion member according to the first aspect, the deformation preventing portion is a plate-like rib that connects the entire areas of the opposing claw portion along the insertion direction.

  In the insertion member according to the second aspect, the deformation preventing portion is a plate-like rib that connects the entire region along the insertion direction of the opposing claw portion, thereby simplifying the configuration and improving the productivity.

  According to a third aspect of the present invention, in the insertion member according to the first or second aspect, the deformation preventing portion is formed on a center line along the insertion direction of the opposing claw portion.

  In the insertion member according to the third aspect, since the deformation preventing portion is formed on the center line along the insertion direction of the opposing claw portion, the opposing claw portion is elastically deformed in the radially inward direction by the deformation preventing portion. Can be effectively prevented. As a result, it becomes more difficult to come off from the mounting hole.

  According to a fourth aspect of the present invention, in the insertion member according to any one of the first to third aspects, the diagonally inward elastic deformation of the opposing claw portion is easily performed at both ends of the deformation prevention portion. A deforming portion is formed.

  In the insertion member according to claim 4, the opposing claw portion is easily elastically deformed inward in the oblique radial direction by the deformed portions formed at both ends of the deformation preventing portion, so that the insertion member is further easily inserted into the mounting hole. .

  According to a fifth aspect of the present invention, in the insertion member according to the fourth aspect, the deformed portion is a thin-walled portion that is thinner than other portions.

  In the insertion member according to claim 5, the configuration is simplified and the productivity is improved by forming the deformed portion as a thin-walled portion that is thinner than other portions.

According to a sixth aspect of the present invention, in the insertion member according to any one of the first to fifth aspects, the opposing claw portion is a pair.
According to a seventh aspect of the present invention, in the insertion member according to any one of the first to sixth aspects, the interval between the opposing claw portions is constant on the root portion side and the distal end portion on the distal end side. Widened continuously in the direction.

In the insertion member according to the sixth aspect, since the opposing claw portion is a pair, the configuration is simplified and the productivity is improved.
In the insertion member according to the seventh aspect, since the torsional rigidity on the distal end side is lower than that on the base side of the opposed claw portion, the opposed claw portion is easily rotated around the axis in the insertion direction.

  As described above, the insertion member according to the first aspect of the present invention is not easily detached from the attachment hole and can be easily inserted into the attachment hole.

  In the insertion member according to the second aspect of the present invention, productivity can be improved.

  In the insertion member according to the third aspect of the present invention, the insertion member can be further prevented from coming off from the mounting hole.

  In the insertion member according to the fourth aspect of the present invention, the insertion member can be more easily inserted into the mounting hole.

In the insertion member according to the fifth aspect of the present invention, productivity can be improved.

In the insertion member according to the sixth aspect of the present invention, productivity can be improved.
In the insertion member according to the seventh aspect of the present invention, the insertion member can be more easily inserted into the mounting hole.

It is the perspective view seen from the diagonal insertion direction which shows the insertion member which concerns on 1st Embodiment of this invention. It is the top view seen from the insertion direction which shows the insertion member which concerns on 1st Embodiment of this invention. It is a side view which shows the insertion member which concerns on 1st Embodiment of this invention. It is the perspective view seen from the diagonal insertion direction which shows the middle of insertion of the insertion member which concerns on 1st Embodiment of this invention. It is the perspective view seen from the diagonal insertion direction which shows the insertion state of the insertion member which concerns on 1st Embodiment of this invention. It is the perspective view seen from the diagonal insertion direction which shows the insertion member which concerns on 2nd Embodiment of this invention. It is the top view seen from the insertion direction which shows the insertion member which concerns on 2nd Embodiment of this invention. It is a side view which shows the insertion member which concerns on 2nd Embodiment of this invention. It is the perspective view seen from the diagonal insertion direction which shows the middle of insertion of the insertion member which concerns on 2nd Embodiment of this invention. It is the perspective view seen from the diagonal insertion direction which shows the insertion state of the insertion member which concerns on 2nd Embodiment of this invention. It is the top view seen from the insertion direction which shows the insertion member which concerns on 3rd Embodiment of this invention. It is the top view seen from the insertion direction which shows the insertion member which concerns on 4th Embodiment of this invention.

(First embodiment)
Hereinafter, the insertion member which concerns on 1st Embodiment of this invention using FIGS. 1-5 is demonstrated. In addition, arrow IN suitably shown in each figure has shown the insertion direction to the attachment hole of an insertion member.

  As shown in FIG. 1, the insertion member of the present embodiment is an insertion rubber 10 made of an elastically deformable rubber material as an example, and is attached to a mounting hole 42 formed in a bracket 40 as an example of a counterpart member. It can be installed. The attachment hole 42 is a circular hole, and the attachment hole 42 is formed in the flat plate portion 40 </ b> A of the bracket 40.

  The base 12 of the plug-in rubber 10 has a conical shape with a diameter decreasing in the anti-insertion direction (downward in FIG. 1), and protrudes radially outward in an intermediate portion of the base 12 in the insertion direction (vertical direction). The large diameter portion 12A is formed. In addition, the contact surface 12B that contacts the flat plate portion 40A of the bracket 40 in the base body 12 is circular, and a pair of opposed claw portions 14 and 16 project from the central portion of the contact surface 12B. In the present embodiment, the center line 10 </ b> A along the insertion direction of the opposing claw portions 14, 16 into the mounting hole 42 coincides with the center line 10 </ b> A of the plug-in rubber 10.

  As shown in FIG. 2, the opposed claw portions 14 and 16 are erected at the same distance from the center line 10 </ b> A in the radial direction, and the opposed claw portions 14 and 16 are elastically deformed in a direction approaching each other. The insertion hole 42 can be inserted. Moreover, the shape seen from the insertion direction (direction along the center line 10A) of the opposing claw portions 14 and 16 into the mounting hole 42 is such that the opposed wall portions 14A and 16A facing each other are flat, and radially outward. The outer peripheral wall portions 14B and 16B are convex bent surfaces.

  As shown in FIG. 3, engaging portions 18 and 20 project outwardly in the radial direction on the distal end side (insertion end side) of the opposing claw portions 14 and 16, respectively. The shape (side surface shape) seen from the radial direction (direction orthogonal to the center line 10A) of the engaging portions 18 and 20 is the amount of protrusion from the tips 14C and 16C of the opposing claw portions 14 and 16 toward the root portions 14D and 16D. The engaging portions 18 and 20 return to their original positions and engage with the rear peripheral edge portion 42A after passing through the mounting hole 42.

  Note that the base portions 14D and 16D in which the engaging portions 18 and 20 are not formed in the opposing claw portions 14 and 16 are inside the mounting hole 42 in a state where the plug-in rubber 10 is assembled to the mounting hole 42 of the bracket 40. It is supposed to be arranged in. In addition, the lower end portion of the root portion 14 </ b> D of the opposed claw portion 14 and the lower end portion of the root portion 16 </ b> D of the opposed claw portion 16 are connected to each other by the connecting portion 24.

An interval S1 between the opposed claw portion 14 and the opposed claw portion 16 is constant at the base portion side, and continuously increases toward the distal end side on the distal end portion side . Further, a rib 30 as a deformation preventing portion is formed between the opposed claw portion 14 and the opposed claw portion 16. The rib 30 is formed in the entire region from the tips 14C, 16C to the root portions 14D, 16D along the insertion direction of the opposing claw portions 14, 16.

  As shown in FIG. 2, the rib 30 has a plate shape, and the shape of the rib 30 viewed from the insertion direction (the direction of the center line 10 </ b> A) of the opposing claw portions 14 and 16 into the mounting hole 42 is a straight line. . The rib 30 is formed on the center line 10A along the insertion direction of the opposing claw portions 14 and 16. Furthermore, both longitudinal ends (radial ends) 30A and 30B of the rib 30 are connected to the opposing wall portions 14A and 16A of the opposing claw portions 14 and 16 at positions P1 and P2 facing each other at right angles. Note that the lower end 30 </ b> D of the rib 30 is connected to the connecting portion 24.

  Therefore, as shown in FIG. 2, the rib 30 supports the opposing claw portions 14 and 16 vertically from the inside in the radial direction, and the opposing claw portions 14 and 16 are directed radially inward (in the direction of arrow A in FIG. 2). Elastic deformation is prevented by the tapping of the rib 30 radially outward (in the direction opposite to the arrow A in FIG. 2). In addition, the plate | board thickness of the rib 30 is set to the thickness which does not buckle-deform when the load of radial inward acts on the opposing nail | claw parts 14 and 16. FIG.

  On the other hand, as shown in FIG. 4, the base 12 is pressed in the insertion direction (the direction of arrow C in FIG. 4) with the tips 14 </ b> C and 16 </ b> C of the opposing claw portions 14 and 16 abutting against the inner peripheral portion of the mounting hole 42. When the base member 12 is operated and rotated around the axis in the insertion direction, that is, in the direction around the center line 10A (the direction of the arrow D in FIG. 4), the connected state of the rib 30 and the opposing claw portions 14 and 16 Changes to a state inclined from a right angle. More specifically, both ends 30A and 30B in the longitudinal direction of the rib 30 are bent so as to allow elastic deformation of the opposing claw portions 14 and 16 inward in the oblique radial direction (in the direction of arrow B in FIGS. 2 and 4). It has become. As a result, the opposing claw portions 14 and 16 are elastically deformed so as to approach each other and can be easily inserted into the mounting hole 42. Further, when the engaging portions 18 and 20 pass through the mounting hole 42 and then engage with the inner peripheral edge portion 42A of the mounting hole 42, the opposing claw portions 14 and 16 return to their original positions, and the rib 30 and the opposing claw The connection state with the parts 14 and 16 returns to a right angle.

(Function and effect)
Next, the operation and effect of this embodiment will be described.

  In the present embodiment having the above-described configuration, as shown in FIG. 1, when the plug-in rubber 10 is attached to the attachment hole 42 formed in the bracket 40, the tips 14 </ b> C and 16 </ b> C of the opposing claws 14 and 16 are used as the attachment holes 42. insert. At this time, the operator presses the base 12 of the plug-in rubber 10 in the insertion direction (the direction of arrow C in FIG. 4) and rotates in the insertion direction (the direction of arrow D in FIG. 4). By this operation, the connection state of the rib 30 and the opposing claw portions 14 and 16 changes to a state inclined from a right angle. That is, both longitudinal ends 30A and 30B of the rib 30 are bent, and elastic deformation of the opposing claw portions 14 and 16 inward in the oblique radial direction (in the direction of arrow B in FIGS. 2 and 4) is allowed. As a result, the opposing claw portions 14 and 16 can be easily inserted into the mounting hole 42 by elastically deforming the opposing claw portions 14 and 16 toward each other.

  Further, when the engaging portions 18 and 20 pass through the mounting hole 42 and engage with the inner peripheral edge portion 42A of the mounting hole 42, the opposing claw portions 14 and 16 return to their original positions, and the rib 30 and the opposing claw portion The connection state with 14 and 16 returns to a right angle. Therefore, as shown in FIG. 5, when the engaging portions 18 and 20 of the opposing claw portions 14 and 16 are engaged with the mounting hole 40, the opposing claw portions 14 and 16 are likely to be removed from the mounting hole 42. Even if an external force to be applied, for example, an external force that is simply inward in the radial direction (in the direction of arrow A in FIG. 5) is applied, 16 can be prevented from elastically deforming inward in the radial direction, that is, in a direction approaching each other (direction of arrow A in FIG. 5). As a result, the plug-in rubber 10 of the present embodiment is unlikely to be detached from the mounting hole 42 in a normal use state.

In the present embodiment, the rib 30 is formed on the center line 10 </ b> A along the insertion direction of the opposing claw portions 14 and 16. For this reason, it is possible to effectively prevent the opposing claw portions 14 and 16 from being elastically deformed in the radial inward direction by the rib 30. As a result, the plug-in rubber 10 according to the present embodiment is more difficult to be detached from the mounting hole 42.
(Second Embodiment)

  Hereinafter, the insertion member according to the second embodiment of the present invention will be described with reference to FIGS. In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIGS. 6-10, in this embodiment, the thin part as a deformation | transformation part is formed in the longitudinal direction both ends 30A and 30B of the rib 30 along the insertion direction. That is, the recesses 32 are formed in the longitudinal direction both ends 30A and 30B of the rib 30 from both sides in the plate thickness direction along the insertion direction, and the plate thicknesses of the ribs 30 at both longitudinal ends 30A and 30B It is thinner than the plate thickness of the longitudinal intermediate portion 30C, which is a part. In addition, as shown in FIG. 8, the recessed part 32 which forms a thin part is also formed along the lower end 30D of the rib 30. As shown in FIG.

  Therefore, the rib 30 supports the opposing claw portions 14 and 16 vertically from the inside in the radial direction, and the rib 30 prevents the opposing claw portions 14 and 16 from elastically deforming radially inward (in the direction of arrow A in FIG. 7). This is prevented by the tapping of the outer side in the radial direction (the direction opposite to the arrow A in FIG. 7). The plate thickness of the intermediate portion 30C in the longitudinal direction of the rib 30 and the plate thicknesses of both ends 30A, 30B in the longitudinal direction are such that they do not buckle and deform when a radially inward load is applied to the opposing claw portions 14, 16. Is set.

  On the other hand, as shown in FIG. 9, the base 12 is pressed in the insertion direction (the direction of arrow C in FIG. 9) with the tips 14 </ b> C and 16 </ b> C of the opposing claw portions 14 and 16 being in contact with the inner peripheral portion of the mounting hole 42. When the base 12 is operated and rotated around the axis in the insertion direction, that is, around the center line 10A (in the direction of arrow D in FIG. 9), the rib 30 and the opposing claw portions 14 and 16 are connected. The state changes from a right angle to an inclined state. That is, both longitudinal ends 30A and 30B of the rib 30 are bent to allow elastic deformation of the opposing claw portions 14 and 16 inward in the oblique radial direction (in the direction of arrow B in FIG. 7). As a result, the opposing claw portions 14 and 16 are elastically deformed so as to approach each other and can be easily inserted into the mounting hole 42.

(Function and effect)
Next, the operation and effect of this embodiment will be described.
In the present embodiment, the concave portions 32 are formed from both sides in the plate thickness direction at both longitudinal ends 30A, 30B of the rib 30 and the plate thicknesses at both longitudinal ends 30A, 30B of the rib 30 are different from those of the other portions of the rib 30. This is thinner than the plate thickness of the intermediate portion 30C in the longitudinal direction. For this reason, in addition to the effect of 1st Embodiment, when inserting in the attachment hole 42, the longitudinal direction both ends 30A and 30B of a rib 30 deform | transform easily. As a result, since the opposing claw portions 14 and 16 are easily elastically deformed inward in the oblique radial direction, the insertion into the mounting hole 42 is further facilitated.

(Supplementary explanation of the embodiment)
In the above, the present invention has been described in detail for specific embodiments. However, the present invention is not limited to the above-described embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art.

  For example, as in the third embodiment shown in FIG. 11, two ribs 30 as deformation preventing portions may be formed, and the two ribs 30 may be formed at the same distance from the center line 10A. Also in this third embodiment, when the plug-in rubber 10 is attached to the attachment hole 42 formed in the bracket 40, the longitudinal ends 30A, 30B of each rib 30 are bent, and the diagonal diameters of the opposing claw portions 14, 16 are bent. Since elastic deformation in the direction inward (in the direction of arrow B in FIG. 11) is allowed, the same effect as the first embodiment can be obtained. Also in the third embodiment, as in the second embodiment, thin portions as deformation portions may be formed at both longitudinal ends 30A, 30B of the respective ribs 30.

  Moreover, it is good also as a structure which combined the 1st Embodiment and 3rd Embodiment and formed three ribs 30 as a deformation | transformation prevention part. Further, although not shown, a configuration in which four or more ribs 30 are formed may be employed.

  Moreover, you may form 2 pairs of opposing nail | claw parts 14 and 16 like 4th Embodiment shown in FIG. Also in the fourth embodiment, when the plug-in rubber 10 is attached to the attachment hole 42 formed in the bracket 40, the longitudinal ends 30A, 30B of each rib 30 are bent, and the opposing claw portions 14, 16 are slanted. Since elastic deformation in the radially inward direction (the direction of arrow B in FIG. 12) is allowed, the same effect as that of the first embodiment can be obtained. Furthermore, although illustration is omitted, a configuration in which three or more pairs of opposing claw portions 14 and 16 are formed may be employed.

  Further, in each of the above embodiments, the rib 30 as the deformation preventing portion is formed in the entire region from the tip of the opposing claw portions 14 and 16 to the root portion, but the opposing claw portions 14 and 16 are radially inward by the rib 30. If it is possible to prevent elastic deformation, the rib 30 may be formed by being divided into positions including only the tips of the opposed claw portions 14 and 16 or at least the tips of the tip and the root.

  Moreover, in each said embodiment, the recessed part 32 is formed in the longitudinal direction both ends 30A and 30B of the rib 30 as a deformation | transformation part, and the plate | board thickness of the longitudinal direction both ends 30A and 30B becomes the other part of the longitudinal direction intermediate part 30C. Although the thickness is smaller than the plate thickness, the deforming portion is not limited to the above-described configuration, and any other configuration may be used as long as the opposing claw portions 14 and 16 can be easily elastically deformed inward in the oblique radial direction.

  In each of the above embodiments, the shape of the base body 12 of the plug-in rubber 10 is a conical shape. However, the shape of the base body 12 may be other shapes such as a cylindrical shape and a rectangular parallelepiped shape. Further, although the mounting hole 42 is a circular hole, the mounting hole 42 may have another shape such as an ellipse or a rectangle.

  Moreover, in each said embodiment, although the insertion member of this invention was applied to the insertion-type rubber 10, this invention is not limited to the insertion-type rubber 10, It was comprised so that elastic deformation was possible with other materials, such as a resin material. The present invention can also be applied to other insertion members.

10 Insertion type rubber (insertion member)
DESCRIPTION OF SYMBOLS 12 Base body of insertion type rubber | gum 14 Opposing claw part of insertion type rubber 14A Opposing wall part of opposing claw part 16 Opposing claw part of insertion type rubber 16A Opposing wall part of opposing claw part 18 Engaging part of opposing claw part 20 Opposing claw part Engaging portion 24 connecting portion 30 rib (deformation preventing portion)
30A Both ends of rib (deformed part, thin part)
30B Both ends of rib (deformed part, thin part)
32 Recess 40 Bracket (mating member)
42 Mounting hole

Claims (7)

A base body attached to the mating member;
At least a pair of opposing claws that are erected at positions facing each other from the contact surface of the base member that contacts the counterpart member, and are inserted into mounting holes formed in the counterpart member by elastic deformation in a direction approaching each other When,
A pair of engaging portions that are formed to project radially outward from the distal ends of the pair of opposing claw portions, and engage with the inner peripheral edge of the mounting hole;
Wherein the shape viewed from the insertion direction is parallel to a straight line relative to the direction of elastic deformation of the radially inward of the pair of engaging portions, connected at a right angle at a position including at least the tip ends of the facing claw portion are, with the with facing pawl portion is prevented from being elastically deformed in the radially inward deformation prevention unit that allows elastic deformation of the oblique radially inward of the opposed claw portion,
Insert member having.   The insertion member according to claim 1, wherein the deformation preventing portion is a plate-like rib that connects the entire areas of the opposing claw portion along the insertion direction.   The insertion member according to claim 1 or 2, wherein the deformation preventing portion is formed on a center line along the insertion direction of the opposing claw portion.   The insertion member according to any one of claims 1 to 3, wherein deformation portions that facilitate elastic deformation of the opposing claw portions inward in the oblique radial direction are formed at both ends of the deformation prevention portion.   The insertion member according to claim 4, wherein the deformable portion is a thin-walled portion that is thinner than other portions.   The insertion member according to claim 1, wherein the opposing claw portions are a pair. The insertion member according to any one of claims 1 to 6, wherein an interval between the opposing claw portions is constant on a base portion side and is continuously widened toward a distal end side on a distal end portion side. .

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