JPS645168Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a fastener for a wire harness or the like installed in a vehicle or the like.

Conventionally, in fasteners for arranging this type of wire harness, etc., due to the diversification of vehicle specifications, the thickness of the body steel plate varies even in the same car model, and the surrounding conditions etc. Due to these restrictions, there are many areas where backlash, sagging, etc. cannot be achieved, and therefore, at present, fasteners that match the thickness of the body steel plate are used. For this reason, the use of different fasteners in the same mounting position and by the same worker can cause quality defects due to incorrect product installation, and having various fasteners in the production line increases man-hours in parts arrangement and parts management. It becomes large,
In addition, when attempting to standardize current fasteners, a stabilizer is installed at the base of the locking part to absorb dimensional differences, which may cause abnormal noises due to rattling, especially in areas where the plate thickness is thin, and may cause damage to other parts. There were defects that caused quality defects such as interference.

This idea was made in view of the above-mentioned conventional drawbacks, and provides a fastener for wire harnesses, etc., which can absorb differences in the thickness of body steel plates and can be fixed without wobbling regardless of the plate thickness. The purpose is to provide a fastener made of synthetic resin or the like in which a wire harness or the like is arranged by inserting a locking leg into a mounting hole penetrating a steel plate body and elastically locking the locking leg. has a vertical central shaft that can be inserted into the mounting hole from the lower surface of the mounting portion of a wire harness or the like, and has a locking surface at the upper end that extends diagonally upward at a predetermined angle symmetrically at the tip of the central shaft; Furthermore, a plurality of joint pieces are provided on both sides of the central axis, symmetrically extending diagonally upward at a predetermined angle, and between the joint pieces there is provided a locking piece that can be elastically deformed. The leg pieces are symmetrically connected in parallel with each other at a predetermined interval, and a plurality of locking claws are symmetrically formed on the outer surfaces of the leg pieces at a predetermined interval in an upwardly diagonal manner,
The present invention resides in a fastener for a wire harness or the like, which is configured such that one or more pairs of substantially parallelogram-shaped receiving portions are formed by the connecting piece, the leg piece, and the central shaft for the locking claw.

Next, the first embodiment of this invention will be explained with reference to FIGS. 1 to 5. In the figures, 3 is inserted into a mounting hole 2 provided through the steel plate body 1 and is engaged with the wire harness W. The fastener 3 is made of synthetic resin or the like, and is composed of a mounting board 4 to which the wire harness W is attached, and a locking leg 5 that is inserted into the mounting hole 2 and engaged. There is.

Reference numeral 4 denotes the above-mentioned mounting board, which is illustrated as being formed into a rectangular plate shape in this example. This mounting board 4
A locking leg 5 is vertically provided on the lower surface of the holder. Reference numeral 6 denotes the central axis of the locking leg 5, which is formed into a plate shape with a width that allows it to be inserted into the mounting hole 2 and a predetermined thickness, and has a predetermined angle on both sides of the lower end toward the tip. An inclined edge 7 is provided, and the tip is formed in an arc shape. At the tip of the vertically installed central shaft 6, a symmetrical locking piece 8 is provided at a predetermined angle toward the side and upward, and a horizontal locking surface 9 is formed at the upper end of the locking piece 8. The locking surfaces 9 of both locking pieces 8, 8
A leg piece 10 is provided at the end on the side of the central axis 6 and stands upward in parallel with the central axis 6 at a predetermined distance.
Its upper end is connected to the lower surface of the mounting board 4 by a slightly thick connecting piece 11, and the locking piece 8 and leg piece 10
The width of the locking piece 8 and the connecting piece 11 are formed so as to be elastically deformable toward the central shaft 6, and the locking surface 9 of the locking piece 8 and the lower surface of the mounting board 4 A spacing T1 is formed between the locking pieces 8 and the steel plate body 1 having the thickest plate thickness T1. It is formed to a width that allows it to be attached to. On the outer surfaces of the left and right leg pieces 10 thus provided, a plurality of symmetrical locking pawls (three on the left and right in this example) are formed successively from below at predetermined intervals. That is, 12 is a second locking pawl, which is provided diagonally upward at a predetermined angle, and has a vertical surface 12a at its tip and is formed into a substantially sharp shape. The tip position is formed at a distance T2 from the lower surface of the mounting board 4, and the left and right projecting width H2 thereof is formed to a width that engages with the lower surface of the mounting hole 2. 13 is a third locking pawl, which is the second locking pawl 1
It is provided in an upwardly oblique manner in almost the same angular direction as 2, and its claw shape is approximately triangular and slightly larger, and its tip side has a horizontal surface 13a and a vertical surface 13b.
The third locking pawl 13 is formed at a distance T3 from the bottom surface of the mounting board 4, and its left and right projecting width H3 satisfies H2<H3.
It is formed to have a width of <H1. Reference numeral 14 denotes a fourth locking pawl, which is provided obliquely upward in substantially the same angular direction as the second locking pawl 12 and the third locking pawl 13;
The tip of the fourth locking pawl 14 is formed into a substantially right-angled shape with a horizontal surface 14a and a vertical surface 14b, and the fourth locking pawl 14 is spaced apart from the bottom surface of the mounting board 4 by a distance T.
4, and its left and right protruding widths are the same width H2 as the second locking pawl 12.

A plurality of joining pieces (in this example In other words, the central shaft 6 is connected by the first connecting piece 15 and the second connecting piece 16.
A plurality of pairs of substantially parallelogram-shaped receiving portions are continuously formed on both sides of the joint piece 1.
5 and 16 are provided so as to be elastically displaceable toward the central shaft 6 as the leg piece 10 is elastically deformed.

Next, the operation and effect of the first embodiment configured as described above will be explained.

Now, the fastener 3 of this example is made of synthetic resin or the like, in which the locking leg 5 is inserted into the mounting hole 2 penetrated through the steel plate body 1 and is elastically engaged to arrange the wire harness W, etc. The locking leg 5 has a central shaft 6 that can be inserted into the mounting hole 2 from the lower surface of the mounting board 4 of the wire harness W, and a central shaft 6 that can be inserted into the mounting hole 2 is vertically disposed at the tip of the central shaft 6. A locking piece 8 having a locking surface 9 and elastically deformable is provided, and a first joint piece 15 and a second joint piece 15 are provided on both sides of the central shaft 6 symmetrically and diagonally upward at a predetermined angle. A piece 16 is provided on the distal end sides of the joint pieces 15 and 16 at a predetermined distance from the central axis 6 and parallel to the locking surface 9 of the locking piece 8 and the lower surface of the mounting board 4. The leg pieces 10 that are joined to the two leg pieces 10 are connected symmetrically, and the outer surfaces of both leg pieces 10 are provided with a second locking claw 12, a third locking claw 13, and a fourth locking claw diagonally upward at a predetermined interval. 14 are formed to protrude symmetrically, and each locking claw 1
Joint pieces 15, 16 and leg piece 1 for 2, 13, 14
0 and the central axis 6 form one or more pairs of substantially parallelogram-shaped receiving parts. Therefore, in order to install the wire harness W using this fastener 3, the wire harness W is first wound and fixed around the mounting board 4 using adhesive vinyl tape or the like. Thereafter, when the tip of the locking leg 5 is brought into contact with the mounting hole 2 and pressed, the left and right locking pieces 8, 8 are guided by the edge of the mounting hole 2 and are elastically displaced toward the central shaft 6. The locking claws 12, 13, 14 are also guided, and the leg piece 10 is elastically deformed toward the central shaft 6, and at the same time as the locking piece 8 passes through the mounting hole 2, the locking pieces 8, 8 are elastically restored. In this case, steel plate body 1
The plate thickness t1 is the distance T1 between the mounting board 4 and the locking surface 9.
In almost the same case, in this state, the mounting board 4 and the locking pieces 8, 8 are elastically connected in a sandwiched manner, and the leg pieces 10, 10 are held together by the respective locking claws 12, 13, 14.
Since it is in contact with the edge of the mounting hole 2, it is elastically deformed toward the central shaft 6, and since the joint pieces 15 and 16 are also elastically displaced, they are fixed without wobbling due to this reaction force. Further, even if an external force is applied in the pulling direction in this state, the locking piece 8 is formed thick and the leg piece 10 connects the first and second connecting pieces 15, 1.
6 and the mounting board 4, it can be sufficiently resisted to prevent it from coming off. Note that the locking pieces 8, 8 alone can sufficiently resist this external force in the pulling direction.

Next, the plate thickness of the steel plate body 1 is adjusted to the second locking claw 12.
If the plate thickness is between t2 or t3 between the interval T2 and the interval T3 between the third locking claws, further pressure is applied to the second plate corresponding to the respective plate thickness.
By engaging the locking pawl 12 or the third locking piece 13 with the lower surface of each mounting hole 2, the locking can be achieved without wobbling, and the locking piece 8 and the first The reaction force of the joining piece 15 can sufficiently resist the movement and prevent it from coming off. Next, in the case of a thin plate thickness t4 corresponding to the interval T4 of the fourth locking pawl 14, by further pressing and locking the lower surface of the mounting hole 2, the mounting board 4 and the fourth locking pawl 14 can be In this case, the connecting piece 11 is attached to the mounting hole 2 in a pinched manner.
It can be easily attached close to the edge of the In addition, even if an external force is applied in the pulling direction in this state, the first joint piece 15, the second joint piece 16, the leg piece 10, and the central shaft 6 form a substantially parallelogram-shaped support against the fourth locking pawl 14. It is possible to sufficiently resist external force and prevent it from coming off.

In this way, one fastener 3 can be elastically fastened to four types of plate thicknesses t1, t2, t3, and t4 without any play, and the wire harness can sufficiently withstand the external force of pulling out. Since the W can be reliably disposed, quality problems such as abnormal noise can be eliminated, and it is also economical in terms of parts management.

In addition, in the first embodiment, the third locking claw 13
Although the projecting width H3 is illustrated as being slightly smaller than the projecting width H1 of the locking piece 8, it may be set to be the same projecting width H1 as the locking piece 8. Further, although the base side of the fourth locking piece 14 is illustrated as being large as shown in the figure, it may have the same shape as the second locking claw 12.

Next, a second embodiment of the present invention will be described with reference to Figures 6 and 7. A fastener 17 of this second embodiment is obtained by cutting off the joint between the legs 10, 10 of the fastener 3 of the first embodiment and the mounting base 4, and the other components are configured in the same manner as in the first embodiment. Therefore, this fastener 17 also has the same effect as the first embodiment, and, for example, even if an external force acts on the end of the mounting base 4 as shown in Figure 7, it has a substantially parallelogram-shaped receiving portion and a strong fastening force like the first embodiment.

Next, a third embodiment of this invention will be explained with reference to FIGS. 8 to 10. This fastener 1
Reference numeral 8 is made of synthetic resin or the like, and is a mounting portion of the approximately U-shaped wire harness W of this fastener 18.
A lid body 21 having an engagement groove 22 at the end thereof is rotatably provided on one upper end side of the mounting portion 19 via a thin wall portion 20, and an engagement groove 22 is provided on the other upper end of the mounting portion 19.
A locking pawl 23 that engages with 2 is provided, and
The inner periphery of the mounting portion 19 has a thin wall.
A wire harness holding piece 24 is provided inwardly in an arcuate shape and elastically deformable. A base portion 25 is provided horizontally in the figure on the outer peripheral portion of the mounting portion 19 formed in this manner, and a locking leg 26 is vertically provided on the base portion 25. Presser leg portions 37 are formed symmetrically on both left and right sides.

This locking leg 26 connects the leg piece 10 of the locking leg 5 of the first embodiment to the mounting board 4 side and the first locking piece 8.
A symmetrical locking piece 28 is provided diagonally upward at a predetermined angle at the lower end of the central shaft 27, which is suspended from the base 25, and at the upper end thereof. A horizontal locking surface 29 is formed, and a neck portion 30 that projects upward is formed at the end of the locking surface 29 on the central axis 27 side. Further, on both left and right sides of the central shaft 27, a first joint piece 32 and a second joint piece 33 having the same elasticity as in the first embodiment are arranged in a symmetrical shape diagonally upward at a predetermined interval and at a predetermined angle. A leg piece 34 is provided parallel to the central axis 27 at a predetermined distance between the joint pieces 32 and 33,
The first joint piece 32, the second joint piece 33, the leg piece 34, and the central shaft 27 constitute a substantially parallelogram-shaped receiving part 31, and the leg piece 34 is connected to both the joint pieces 32, 3.
3, the left and right leg pieces 34 have a locking pawl 35 on the lower end side, and a guide protrusion 36 along the mounting hole 2 on the upper end side. each formed. The locking surface 29 of the locking piece 28 of the locking leg 26 formed in this way
are provided at a distance T'1 from the bottom surface of the base part 25, the left and right overhangs are formed to have a width H'1, and the locking claws 35 are located at a distance T'1 from the bottom surface of the base part 25.
It is provided at a position T'2, and its left and right projecting widths are formed to be the same projecting width H'1 as the projecting width H'1 of the locking piece 28.

Reference numeral 37 denotes a presser leg part which elastically clamps the steel plate body 1 with the locking leg 26, and a leg piece 38 is provided near the base part 25 at a predetermined angle α with respect to the central axis 27. At the same time, a force bone portion 39 is formed at the tip of the leg piece 38. Further, a substantially arc-shaped folded piece 4 is folded back from the strength bone portion 39.
0 is provided at the end of the folded piece 40, and a force rib portion 41 is formed at the end of the folded piece 40, and the force bone portion 41 is connected to the attachment portion 19 via a thin wall portion 42 by a connecting piece 43. The presser leg 37 formed in this manner is only allowed to elastically deform in the direction of the arrow in the figure, and can be deformed to a position where the leg piece 38 of the presser leg 37 becomes substantially horizontal.

Next, the operation of the third embodiment configured as described above will be explained.

First, when the locking claw 35 is used to lock the locking leg 26, the tip of the locking leg 26 is brought into contact with the mounting hole 2 and pressed.
The locking piece 28 is guided by the edge of the mounting hole 2 and is attached to the central shaft 2.
It is elastically displaced to the 7 side. When pressed further, the locking claw 3
5 is brought into contact with the lower surface of the receiving portion 31, the entire receiving portion 31 is elastically displaced toward the central shaft 27, and the first locking piece 28
At the same time as it is removed from the mounting hole 2, it elastically returns to its original state, and the locking pawl 35 is inserted into the hole 2,
On the other hand, the tip of the presser leg 37 is brought into contact with the upper surface of the steel plate body 1. When the second locking claw 35 passes through the mounting hole 2 by further pressing, the locking claw 35 is engaged with the lower surface of the steel plate body 1 due to the elastic restoration of the first joint piece 32 and the second joint piece 33, and the presser leg Due to the elasticity of the portion 37, it is elastically engaged. In this case, the guide portion 36 is located within the attachment hole 2 and is securely engaged close to the inner diameter portion. When an external force acts in the pulling direction in this state, this external force is received by the receiving part 31, and even if the first joint piece 32 is forcibly expanded, it is received by the locking piece 28, and the second joint piece 32 is received by the locking piece 28. The piece 33 is located inside the mounting hole 2, and the guide convex portion 36 at its tip abuts against the inner diameter of the mounting hole 2, and together with this, it has a strong engagement force against external pulling force. In addition, since the presser foot 37 can be elastically deformed to a position where the leg piece 38 is horizontal, the presser foot 37 and the locking pawl 35 can be used to hold the steel plate body 1 having a thickness within the range of the interval T'2. It can be attached to. Further, the thickness of the steel plate body 1 to which the first locking piece 28 and the presser foot 37 are engaged can be applied to a range of thicknesses from the interval T'2 to the interval T'1. .

Note that in this third embodiment, the presser foot leg 37
Although the present invention is not limited to this, the presser leg portion 37 may be omitted, and in this case, it is possible to deal with two types of plate thicknesses with intervals T'1 and T'2. Furthermore, by providing a plurality of locking claws on the leg pieces 34 of the receiving portion 31, it is possible to deal with the thickness of the steel plate body 1 in stages, similarly to the first embodiment.

The present invention is a fastener made of synthetic resin, etc., in which a wire harness or the like is arranged by inserting a locking leg into a mounting hole penetrated through a steel plate body and elastically locking the locking leg. A central shaft that can be inserted into the mounting hole is provided vertically from the lower surface of the mounting part, and the tip of the central shaft has a locking surface at the upper end that extends diagonally upward at a predetermined angle symmetrically, and is elastically deformable. Furthermore, a plurality of joint pieces are provided on both sides of the central axis, symmetrically extending diagonally upward at a predetermined angle, and a predetermined interval is provided between the joint pieces with respect to the central axis. The leg pieces are connected symmetrically in parallel, and a plurality of locking pawls are formed symmetrically and protruding upwardly at predetermined intervals on the outer surfaces of both leg pieces. On the other hand, by forming one or more pairs of substantially parallelogram-shaped receiving parts by the joint piece, the leg piece, and the central shaft, it is possible to deal with steel plate bodies of different plate thicknesses using the plurality of locking claws. Since the receiving part is formed in a substantially parallelogram shape, it is possible to elastically receive the force applied to the locking pawl and eliminate rattling. Because it is easily displaced, it can be easily inserted and locked into the mounting hole, and at the same time, when an external force is applied to the locking leg in the pulling direction, the substantially parallelogram-shaped receiving part opens and expands within the mounting hole. , it is possible to obtain a large locking force by acting like a tension on the inner circumferential surface of the mounting hole, and to prevent the locking leg from coming off from the mounting hole,
Furthermore, it is possible to eliminate quality defects such as generation of abnormal noises, and is also economical in terms of parts management, so it is an extremely practical idea as a fastener for wire harnesses, etc.

[Brief explanation of the drawing]

Figures 1 to 5 show a first embodiment of the present invention, in which Figure 1 is a front view of the fastener, Figure 2 is a side view, Figure 3 is a bottom view, and Figure 4 is a locking leg. 5A and 5B are diagrams for explaining the operation, Figures 6 and 7 show the second embodiment of the present invention, Figure 6 is a front view, Figure 7 is a diagram for explaining the operation, and Figure 8 is a diagram for explaining the operation. Figures 10 to 10 show a third embodiment of the present invention, and Figure 8 is a front view;
Figure 9 is an enlarged view of the locking leg and presser leg;
The figure is an explanatory view of the action of the locking leg and the presser leg. 1... Steel plate body, 2... Mounting hole, 3, 17,
18... Fastener, 5, 26... Locking leg, 6, 27
... Central shaft, 8, 28 ... Locking piece, 10, 34 ...
... Leg piece, 15, 16, 32, 33 ... Joint piece, 1
2, 13, 14, 35...Latching claws.

Claims (1)

[Scope of utility model registration request] A fastener made of synthetic resin, etc., in which a wire harness, etc. is installed by inserting a locking leg into a mounting hole penetrated through a steel plate body and elastically locking the locking leg. A central shaft that can be inserted into the mounting hole is provided vertically from the lower surface, and at the tip of the central shaft there is a locking piece that is elastically deformable and has a locking surface at the upper end that extends symmetrically upward at a predetermined angle. Further, on both sides of the central axis, a plurality of joint pieces are provided symmetrically and diagonally upward at a predetermined angle, and there is a predetermined interval between the joint pieces with respect to the central axis, and The leg pieces are symmetrically connected in parallel, and a plurality of locking claws are symmetrically formed on the outer surfaces of the two leg pieces at predetermined intervals in an upwardly diagonal manner. A fastener for a wire harness or the like, which has a configuration in which a leg piece and a central shaft form one or more pairs of substantially parallelogram-shaped receiving parts.