This application claims the priority of Japanese Patent Application No. 2018-195428 filed on Oct. 16, 2018. The disclosure of the prior application is hereby incorporated herein in the entirety by reference.
This invention relates to an engaging member.
For vehicles, a clamp described in, for example, Japanese Laid-Open Patent Publication No. 2007-282352 is used to hold a wire harness formed by a wiring group including a signal line and a power supply line, in a binding state, in a vehicle body.
An engaging member is bound and held together with the wire harness by using a belt, tape or the like, and, thus, the engaging member is attached integrally with the wire harness. Then, the engaging member that has been integrated with the wire harness is assembled to the vehicle body by an engaging portion thereof being inserted into a fixing hole of the vehicle body. A plurality of such engaging members are attached to the wire harness at predetermined positions in the longitudinal direction of the wire harness, and each of the engaging members is inserted and assembled into a fixing hole provided at the corresponding position in the vehicle body.
A technique for movably providing an engaging portion in such an engaging member is available (see Japanese Laid-Open Patent Publication No. 10-89329). In this case, even if there is some positional displacement between the engaging portion and the fixing hole of the vehicle body, the positional displacement can be absorbed by the movement of the engaging portion. In such a structure in which the engaging portion is movable, a large burden may be imposed on the movement mechanism of the engaging portion when an unexpected large load is imposed on the engaging portion in the movement direction.
An object of this invention is to enable, in an engaging member including an engaging portion configured to be movable, the movement mechanism to withstand a large load.
In order to attain the aforementioned object, an engaging member includes:
an engaging portion configured to be inserted and assembled into a fixing hole of a vehicle body;
an attachment portion configured to attach an elongated wire routing material;
a linking portion configured to connect the engaging portion and the attachment portion to each other such that the engaging portion is movable relative to the attachment portion in at least a longitudinal direction of the wire routing material attached by the attachment portion; and
a movement restricting portion configured to restrict movement of the engaging portion relative to the attachment portion in one or both of an insertion direction in the fixing hole and the longitudinal direction, to movement within a predetermined range.
In the engaging member of this invention, the linking portion is provided as a movement mechanism for moving the engaging portion. The movement restricting portion for restricting movement of the engaging portion in one or both of the longitudinal direction and the insertion direction, is provided. Thus, an excessive movement or deformation of the linking portion is prevented by the movement restricting portion even if a large load is applied, and, therefore, an excessive load that causes a damage to the linking portion is not applied.
In this invention, the attachment portion may include first opposing wall portions that hold the engaging portion therebetween in the longitudinal direction, and the linking portion may include a first side linking portion that connects one of the first opposing wall portions and the engaging portion to each other, and a second side linking portion that connects the other of the first opposing wall portions and the engaging portion to each other. With this configuration, two linking portions are provided, and, therefore, the burden on the linking portions can be shared.
In this invention, the attachment portion may include second opposing wall portions that hold the engaging portion therebetween in an orthogonal direction that is orthogonal to the longitudinal direction and the insertion direction, and that are provided with a through portion that penetrates in the orthogonal direction. The engaging portion may include a protrusion that is inserted into the through portion, and the movement restricting portion may be formed by the through portion and the protrusion, and may restrict movement of the engaging portion by restricting a movement range of the protrusion to a range within the through portion. With this configuration, movement of the protrusion is restricted by the protrusion coming into contact with the inner wall surface of the through portion, and the movement range is defined only to the inside of the through portion. Accordingly, the engaging portion can be also moved only within a range in which the protrusion can be moved. As a result, even if the engaging portion is urged to move by application of a large load, the protrusion can prevent the movement of the engaging portion by coming into contact with the inner wall surface of the through portion, to receive the load applied to the engaging portion. Therefore, the linking portion is not damaged by being excessively moved or deformed by the applied load.
In this invention, the linking portion may have a pantograph-like shape including first opposing portions that extend from the attachment portion toward the engaging portion so as to be separated from each other, and second opposing portions that are bent from extension ends of the first opposing portions, and that extend toward the engaging portion so as to approach each other, and each of the first opposing portions and the second opposing portions may be an opposing wall portion that extends in the insertion direction, and a cut surface, which is taken along a plane including the longitudinal direction, and an orthogonal direction which is orthogonal to both the longitudinal direction and the insertion direction, is formed so as to approach the engaging portion toward a far side in the insertion direction. With this configuration, when the pantograph-shaped portion formed by the pair of first opposing portions and the pair of second opposing portions is contracted, the engaging portion is moved upward so as to be raised in the insertion direction on the contraction side. Since the wire routing material is located on the opposite side in the insertion direction for the engaging portion, if the engaging portion is likely to be moved or deformed toward the opposite side in the insertion direction, the engaging portion comes into contact with the wire routing material, so that the engaging portion moves so as to slide on the wire routing material, and the engaging portion is not easily moved. However, by the engaging portion being moved so as to be raised in the insertion direction on the side on which the pantograph-shaped portion is contracted, the engaging portion is easily prevented from contacting with and sliding on the wire routing material, and the engaging portion can be easily moved.
In this invention, the linking portion may have a pantograph-like shape including first opposing portions that extend from the attachment portion toward the engaging portion so as to be separated from each other, and second opposing portions that are bent from extension ends of the first opposing portions, and that extend toward the engaging portion so as to approach each other, and the first opposing portions and the second opposing portions may be opposing wall portions that extend in the insertion direction, and a weakened portion may be provided on an inner side of each corner portion of a quadrangular wall portion formed by the four wall portions, the weakened portion facilitating bending deformation in which two wall portions extending from the corner portion approach each other or are separated from each other by using the corner portion as a fulcrum. With this configuration, the pantograph-shaped portion formed by the pair of first opposing portions and the pair of second opposing portions can be more easily extended or contracted. On the other hand, since the movement restricting portion is provided, even if the extension/contraction of the pantograph-shaped portion is facilitated, an excessive extension/contraction can be restricted, and, therefore, there is no risk of damaging.
Hereinafter, one embodiment of this invention will be described with reference to the drawings.
In this embodiment, as shown in
The flexible wire routing material 2 is a flexible member formed by a bundle of a plurality of wires extending in an elongated manner. The flexible wire routing material 2 is a wire harness that forms a signal line. The flexible wire routing material 2 of this invention is not limited to a wire harness.
The flat wire routing material 3 is a member that has a flat-plate-like shape, extends in an elongated manner, and has higher rigidity and lower flexibility than the flexible wire routing material 2. The flat wire routing material 3 is a metal bus bar that forms a power supply line. The flat wire routing material 3 is formed such that four surfaces forming the outer peripheral surfaces are each formed as a flat surface extending in the longitudinal direction of the flat wire routing material 3. The flat wire routing material 3 of this invention may be an FFC (Flexible Flat Cable) that constitutes a flat cable or an FPC (Flexible Printed Circuit), and is not limited to a bus bar.
As shown in
The engaging portion 40 is an anchor portion that is inserted into a predetermined fixing hole 101H (see
The engaging portion 40 is formed so as to protrude on the flat wire routing material 3 side (area located above the broken line Q in
The elastic locking piece 40A has a shape that expands from the distal end side (upper side of the column portion 40B in
The contact portion 40C has a shape extending in a dish-like form from the proximal end side of the column portion 40B in the insertion direction Z, and comes into contact with the peripheral part 101R around the fixing hole 101H so as to form an annular shape. In the above-described locking state, the contact portion 40C comes into contact with the peripheral part 101R around the fixing hole 101H from the near side (lower side in
As shown in
The attachment portion 41 includes, as a mount portion that is mounted on at least one of the wire routing materials 2, 3, an annular wall portion including first opposing wall portions 41X, 41X that oppose each other in a longitudinal direction X, and second opposing wall portions 41Y, 41Y that oppose each other in an orthogonal direction Y.
The first opposing wall portions 41X, 41X are wall portions that hold the engaging portion 40 (here, a bottom part 40D, of the engaging portion 40, on the side opposite to the insertion direction Z side) therebetween in the longitudinal direction X, and extend in the orthogonal direction Y. The first opposing wall portions 41X, 41X are formed as inclined wall portions that are inclined so as to approach each other toward the far side in the insertion direction Z for the engaging portion 40. On the other hand, the second opposing wall portions 41Y, 41Y are wall portions that hold the engaging portion 40 (here, the bottom part 40D of the engaging portion) therebetween in the orthogonal direction Y, and extend linearly in the longitudinal direction X so as to connect both ends of the first opposing wall portions 41X, 41X to each other.
The attachment portion 41 includes the bound portions 41R, 41L that are bound and held by being enclosed together with the wire routing materials 2, 3 when the wire routing materials 2, 3 are bound by the binding members 5R, 5L.
The bound portions 41R, 41L are sleeve portions that extend in the longitudinal direction X of the wire routing materials 2, 3 in a binding and holding state in which the bound portions 41R, 41L are bound and held together with the wire routing materials 2, 3 by the binding members 5R, 5L. Specifically, as shown in
As shown in
The binding members 5R, 5L are flexible elongated members, and are tape members in which surfaces (inner circumferential surfaces in the case of the object to be bound being enclosed) facing an object to be bound are adhesive surfaces (not shown). Each of the binding members 5R, 5L adheres at a portion that contacts with the enclosed object to be bound, and both ends of each biding member overlap and adhere to each other, whereby a binding state is obtained.
In this manner, the binding members 5R, 5L bind the bound portions 41R, 41L together with the flat wire routing material 3 and the flexible wire routing material 2, thereby achieving a binding and holding state in which the flat wire routing material 3 and the flexible wire routing material 2 are attached to and held by the engaging member 4.
Each of the bound portions 41R, 41L includes an outer side protrusion 41S that protrudes in the insertion direction Z at an end portion on the outer side in the longitudinal direction X. The outer side protrusions 41S function as a falling-off preventing portion for preventing the binding members 5R, 5L from falling off from the bound portions 41R, 41L to the outside in the longitudinal direction X.
As shown in
The linking portions 49R, 49L connect the engaging portion 40 and the attachment portion 41 such that the engaging portion 40 is movable relative to the attachment portion 41 in the orthogonal direction Y and the longitudinal direction X of the wire routing materials 2, 3 attached by the attachment portion 41.
As shown in
Specifically, each linking portion 49R, 49L has a pantograph-like shape including first opposing portions 491, 491 that extend from the first opposing wall portions 41X, 41X of the attachment portion 41 toward the engaging portion 40 so as to be separated from each other, and second opposing portions 492, 492 that are bent from the extension ends of the first opposing portions 491, 491, and that extend toward the engaging portion 40 so as to approach each other. A gap 40S (see
When the engaging portion 40 has been moved to the first side in the longitudinal direction X, the first opposing portions 491, 491 and the second opposing portions 492, 492 of the first side linking portion 49R are in a compressed state in which the opposing portions approach each other, and the first opposing portions 491, 491 and the second opposing portions 492, 492 of the second side linking portion 49L are in an extended state in which the opposing portions are separated from each other, as shown in
The first opposing portions 491, 491 of the linking portions 49R, 49L are connected with longitudinal direction extending portions 493 provided in the attachment portion 41. The longitudinal direction extending portions 493 extend from the first opposing wall portions 41X, 41X of the attachment portion 41 in the longitudinal direction X. Due to the longitudinal direction extending portions 493 being provided, the linking portions 49R, 49L allow connecting portions between the first opposing portions 491, 491 and the second opposing portions 492, 492 to be deformed until the opposing portions reach both sides of each longitudinal direction extending portion 493 in the orthogonal direction as shown in
When the engaging portion 40 is moved to the first side in the orthogonal direction Y, both the first opposing portions 491, 491 and the second opposing portions 492, 492 of the linking portions 49R, 49L are slightly extended to move the engaging portion 40 side portion toward the first side in the orthogonal direction Y by using, as a fulcrum, the connection portions between the first opposing portions 491, 491 and the longitudinal direction extending portions 493, 493, as shown in
Thus, the linking portions 49R, 49L are movable in the orthogonal direction Y and the longitudinal direction X of the engaging portion 40. That is, the engaging portion 40 is movable in an XY plane formed by the longitudinal direction X and the orthogonal direction Y in the engaging member 4.
However, the engaging member 4 includes movement restricting means provided so as to narrow a range in which the engaging portion 40 can be moved by the linking portions 49R, 49L. That is, the engaging member 4 includes, as first movement restricting means (longitudinal direction movement restricting means in this invention) for restricting the movement of the engaging portion 40 to movement within a predetermined range X10 in the longitudinal direction X in
Specifically, when the engaging portion 40 is moved to the first side (right side in
The engaging member 4 includes, as second movement restricting means for restricting the movement of the engaging portion 40 in the orthogonal direction Y to movement within a predetermined range Y10 (see
Specifically, when the engaging portion 40 is moved to the first side (upper side in
Since the first opposing portions 491, 491 and the second opposing portions 492, 492 are deformed in the insertion direction Z by application of a force in the insertion direction Z, the engaging portion 40 can be moved in the insertion direction Z (upper direction in
The first opposing portions 491, 491 and the second opposing portions 492, 492 are opposing wall portions that extend in the insertion direction Z, and a cut surface which is taken along a plane including both the longitudinal direction X and the orthogonal direction Y forms an inclined wall portion that is inclined so as to approach the engaging portion 40 toward the far side in the insertion direction Z. With this configuration, when one of the pantograph-like shapes including the first opposing portions 491, 491 and the second opposing portions 492, 492 is contracted, the contracted pantograph-like shape side portion (in the case of
Thus, in consideration of at least one of the structure in which the linking portions 49R, 49L are less likely to be moved in the direction opposite to the insertion direction Z, and the structure in which the wire routing materials 2, 3 are attached to the engaging member 4 on the side opposite to the insertion direction Z side, no wall portions are provided in the through portion 41H on the side opposite to the insertion direction Z side in the second opposing wall portions 41Y, 41Y. An opening is formed on the side opposite to the insertion direction Z side, and the opening facilitates the removal of a mold during molding.
Each of the first opposing portions 491, 491 and the second opposing portions 492, 492 is an opposing wall portion extending in the insertion direction Z, and a weakened portion 494 is provided on the inner side of each corner portion of a quadrangular wall portion formed by these four wall portions 491, 491, 492, 492, as shown in
In this embodiment, an assembling structure 10 for the engaging member 4 is formed for inserting and assembling the engaging member 4 that holds the elongated wire routing materials 2, 3, into the fixing hole 101H of the vehicle body 100, as shown in
As shown in
As shown in
As shown in
Although one embodiment of this invention has been described above, this embodiment is merely illustrative. This invention is not limited thereto, and various modifications such as additions and omissions may be made on the basis of the knowledge of a person skilled in the art without departing from the scope of the claims.
Hereinafter, other embodiments different from the above embodiment, and modifications thereof, will be described. Parts having the same functions as those in the above embodiment are denoted by the same reference characters, and the detailed description thereof is omitted. The above embodiment and the following modifications and other embodiments may be combined to be implemented as appropriate as long as no technical contradiction arises.
For example, in this invention, the flexible wire routing material 2 may be omitted, and only the flat wire routing material 3 may be used. Conversely, the flat wire routing material 3 may be omitted, and only the flexible wire routing material 2 may be used.
Although two bound portions 41R, 41L are provided as bound portions in the above embodiment, one of the bound portions 41R, 41L may be provided. Although the binding members 5R, 5L function as the first side binding member and the second side binding member, respectively, in the above embodiment, only one of the binding members 5R, 5L may be provided.
The attachment portion in the above embodiment is provided as the bound portions 41R, 41L, and the wire routing materials 2, 3 are attached to the engaging member 4 using the binding members 5R, 5L, which are separate members. However, for example, the attachment portion may be provided so as to include a belt portion that encloses the wire routing materials 2, 3, and a buckle portion (not shown) that fixes both ends of the belt portion, and the wire routing materials 2, 3 may be attached to the engaging member 4 without using a separate member.
Although two linking portions 49R, 49L are provided as linking portions in the above embodiment, it is possible to use any linking portion that connects the engaging portion 40 and the attachment portion 41 to each other such that the engaging portion 40 is movable relative to the attachment portion 41 in the longitudinal direction X and the orthogonal direction Y. For example, one of the linking portions 49R, 49L may be provided, or two or more linking portions 49R, 49L may be provided. In the case where two or more linking portions 49R, 49L are provided, the linking portions 49R, 49L each of which forms a pantograph-like shape may be arranged also in the orthogonal direction Y, as in the longitudinal direction X. The pantograph-like shape includes a diamond shape and a diamond-like shape, and may further include a V-like shape and a round shape.
In the above embodiment, the longitudinal direction extending portion 493 belongs to the attachment portion 41, and functions as an oscillation fulcrum for the linking portions 49R, 49L connected therewith. However, the longitudinal direction extending portion 493 may belong to the linking portions 49R, 49L, and may be configured such that the side connected with the first opposing portions 491, 491 oscillates in the orthogonal direction Y using, as a fulcrum, the connection portions with the first opposing wall portions 41X, 41X of the attachment portion 41.
Although the movement restriction in the above embodiment is performed in both the insertion direction Z and the longitudinal direction X, the movement restriction may be performed in one of these directions.
Number | Date | Country | Kind |
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2018-195428 | Oct 2018 | JP | national |