JP2014009810A - Loading/unloading mechanism for holding means for object to be positioned - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a loading/unloading mechanism for holding means for an object to be positioned, which is available even when a substrate to be used becomes thicker, and working is facilitated in loading/unloading, especially, in unloading.SOLUTION: A loading/unloading mechanism comprises: a base shaft 11: a pair of stoppers 12 extending in a V shape from an extension end of the base shaft 11 closer to holding means, e.g., a head part 21 of a band-shaped object 2; positional displacement prevention pieces 13 further extending from extension ends of the pair of stoppers 12 closer to the head part 21, respectively; and cancellation pieces 14 extending away from the base shaft 11 with the positional displacement prevention pieces 13 as origins, respectively. The vicinity of an extension proximal end 14a of the cancellation piece 14 is weakened to make an elastic force smaller than a diameter reduction force of the stopper 12, in addition, the positional displacement prevention piece 13 further extends closer to the head part 21, and an unloading support lever 15 capable of pressing the vicinity of the extension end 13a extends from the cancellation piece 14.

Description

  The present invention relates to a holding means for holding an object to be positioned such as an electric wire or a piping tube, and arranging the object to be positioned at a predetermined position on a substrate such as various frames or switchboards. The present invention relates to an attachment / detachment mechanism for holding means for an object to be positioned that can be removed from a substrate.

In recent years, recycling and reuse of industrial products has been actively performed as one of measures for protecting resources and preventing global warming.
For example, for wiring used in automobiles, vending machines, printers, copiers, etc., after attaching necessary parts such as connectors to wires of the required length or LAN cables in advance, cable ties etc. for each wire destination The wire harness bundled in is assembled, and then the wire harness is wired and positioned at a necessary location.
In many cases, a binding band as disclosed in JP-A-10-37917 is used for this positioning.
This type of binding band is formed by a head and a band extending from the head, while providing a through hole in the head and the band when the band passes through the through hole. A claw that can be locked is formed, and an arrowhead-shaped retaining piece is extended from the head.
Then, a hole for positioning the wiring is formed on the substrate of each device, and the arrowhead-shaped retaining piece is inserted into this hole, and the necessary part of the wire harness is wound around the head portion by winding the band portion. The wire harness is bundled and positioned by passing through the hole and locking the band portion with a claw.
However, once this banding band is inserted into the hole in the substrate, the arrowhead-shaped retaining piece is caught on the back side of the hole in the substrate and cannot be removed.
As mentioned above, in the recent recycling and reuse of industrial products, which is one of the measures to protect resources and prevent global warming, the arrowhead shape is used for disassembling products by each part or material. The retaining piece is a major obstacle.
In view of this, the business operators related to the present case have proposed as shown in the following “prior art document” in order to improve the efficiency of the work of removing the wire harness from the substrate of each device.

  JP 2002-78166 A   JP 2004-218762 A

  In “Patent Document 1”, an engagement arm having an intermediate portion bent at an acute angle (2θ) and a shaft portion connecting the bent portion and the wire gripping portion are formed in an arrow shape, and both wings of the engagement arm A technique is disclosed in which a concave portion is formed on the outer side by a stepped portion and a wing formed by bending an engaging arm outward, and is engaged with a peripheral portion of the opening of the panel.

  In “Patent Document 2”, a fitting portion is provided at a position off a position immediately below a saddle portion that holds a cable. The fitting portion includes a pair of fitting pieces provided at the tip of the post protruding from the lower surface of the base portion and fitted into the through hole of the chassis, and a release piece connected to the fitting piece via the connecting piece. . A technique has been disclosed in which the release piece is picked with a finger and deformed in the inner diameter direction, whereby the fitting piece is deformed in the reduced diameter direction so that the mini saddle (fixing tool) can be easily attached to and detached from the through hole of the chassis. ing.

According to “Patent Document 1”, when the engaging arm is pushed into the opening, the engaging arm enters the opening while the angle θ is compressed, and when the step reaches the step portion, the engaging arm is elastically moved to both sides. If it is opened and pushed further, it will hit the wing and no further tool locking part can be inserted into the panel.
Also, when removing the wire locking tool from the panel, if the angle is reduced by grasping the left and right recycling levers, the engagement between the stepped portion and the periphery of the opening is released, and the tool locking portion is pulled out from the opening. Can do.
It is said.
While this technique has good workability and simple mechanism, it is easy to manufacture the mold and there are few mold failures, and it is easy to mold and can stabilize the quality and has a good yield, Referring to FIG. 11, when the left and right recycle levers 142X are picked to reduce the angle θ, it naturally means that the recycle levers 142X and wings 141X move upward from the panel PX as indicated by phantom lines. For example, the thicker the panel PX, the smaller the angle θ with respect to the position of the wing 141X. This means that the stepped part 121X can be easily removed from the opening HX. Therefore, there is a problem that the thickness of the panel PX to be used is limited.

  Since “Patent Document 2” has the same effect as “Patent Document 1”, there remains a problem that the thickness of the chassis is limited.

  Therefore, the present invention enables use even when the thickness of the substrate to be used is thick, and since the mechanism is simple, it is easy to manufacture the mold and there are few mold failures, and it is easy to mold and the quality is stable. It is another object of the present invention to provide an attaching / detaching mechanism for holding means for an object to be positioned, which can be easily attached / detached, particularly at the time of hole removal, while taking advantage of the prior art that can be made and has a good yield.

In order to achieve the above object, the present invention solves the problem by using the following means.
The first problem-solving means is an attachment / detachment mechanism for the positioning means holding means for positioning and positioning the positioning object holding means on the substrate by being inserted into the hole of the substrate,
The attachment / detachment mechanism includes a base shaft extending from the holding means as a base end, a pair of retaining pieces extending in a V shape from the extending end of the base shaft toward the holding means, and the pair of retaining pieces. A misalignment prevention piece extending from the extended end of the position toward the holding means, and a release piece extending in a direction away from the base shaft from each misalignment prevention piece as a starting point. When an external force is applied to each retaining piece via the release piece, the diameter of the retaining piece is reduced toward the proximal side from the vicinity of the extended base end of each retaining piece. Applying an elastic force to expand the diameter toward the base axis side, and further, when the thickness of each of the retaining pieces near the base point is rotated to the left or right while being inserted into the hole of the substrate, the retaining pieces are removed from the holes. The shape and size of the release piece It is possible to make the vicinity of the base end weak enough to make it a small elastic force that does not substantially affect the diameter reducing force of the retaining piece, and in addition, the misalignment prevention piece can be further extended to the holding means side and the vicinity of the extended end can be pressed Provided is an attaching / detaching mechanism for holding means for the object to be positioned, in which a deaeration assist lever is extended from the release piece.

  In addition to the first problem-solving means, the second problem-solving means is provided in the vicinity of the extension end between the extension hole auxiliary lever extension end and the misalignment prevention piece due to the deformation of the release piece at the maximum board thickness. Provided is an attachment / detachment mechanism for holding means for an object to be positioned whose positional relationship is close to that of contact.

  In addition to the first and second problem-solving means, the third problem-solving means includes a stepped portion that is larger than the hole of the board and contacts the surface on the insertion-direction side of the board, on the base axis on the insertion direction side of the board. Provided is a mechanism for attaching and detaching the provided object holding means.

  In the fourth problem solving means, in addition to the first to third problem solving means, the holding means is formed of a head portion and a band portion extending from the head portion, and a through hole is provided in the head portion. In addition, a mechanism for attaching and detaching the object to be positioned is provided in which a claw capable of locking the band part when the band part passes through the through-hole is formed in a band-like object formed in the head.

  In addition to the first to third problem solving means, a fifth problem solving means provides an attachment / detachment mechanism for the object to be positioned holding means, wherein the holding means is a clip that holds or loosely holds the object to be positioned.

The operation of the first problem solving means is as follows.
Make the area near the extended base end of the release piece weak enough to make it a small elastic force that has almost no effect on the diameter reducing force of the retaining piece, and further extend the position shift prevention piece to the holding means side and press near the extended end When the board thickness of the substrate is increased by extending the possible deaeration assist lever from the release piece, the release piece moves to the holding means side with the vicinity of the extended base end of the release piece as a rotation fulcrum. At this time, the rotation fulcrum in the vicinity of the extended base end of the release piece is weak and the diameter reducing force of the retaining piece is larger than the elastic force generated by the position movement of the release piece. The force transmitted to the retaining piece is small, so that the retaining piece is hardly reduced in diameter and only the release piece moves. Therefore, the stopper piece does not come out from the hole of the substrate.
In addition, since the extended end of the de-hole assist lever that moves with the release piece approaches the extended end of the misalignment prevention piece, when the external force is applied to shrink the release piece to the base side, the de-hole assist lever The stopper piece is brought into contact with the misalignment prevention piece and the diameter of the retaining piece is reduced through the misalignment prevention piece. Even if the rotation fulcrum in the vicinity of the extended base end of the release piece is weak, the deaeration assist lever is effective. Will work. Therefore, the retaining piece can be easily removed from the hole in the substrate.

The operation of the second problem solving means is as follows.
In addition to the action of the first problem solving means, the positional relationship between the extended end of the de-hole assist lever and the extended end of the misalignment prevention piece due to the deformation of the release piece at the maximum board thickness is in contact The distance between the extension end of the auxiliary lever and the position near the extension end of the misalignment prevention piece is minimized even at the minimum plate thickness as well as at the maximum plate thickness. The hole removal workability at the minimum plate thickness can be performed with the same feeling as the best hole removal workability at the maximum plate thickness.

The operation of the third problem solving means is as follows.
In addition to the first and second actions described above, the holding means of the holding means is provided on the base axis on the insertion direction side of the board by providing a step portion that is larger than the hole of the board and contacts the surface on the insertion direction side of the board. The fall of the attaching / detaching mechanism when seated on the substrate can be prevented and the posture of the holding means is stabilized.

The operation of the fourth problem solving means is as follows.
In addition to the action by the first to third problem solving means, since the holding means is a band-like object, even if the size of the object to be positioned changes, the object to be positioned is wound and positioned at the band part. The limit range of the size of the object to be positioned can be expanded.

The operation of the fifth problem solving means is as follows.
In addition to the action of the first to third problem solving means, the holding means is a clip that clamps or loosely holds the object to be positioned, so that compared to the case of a band-like object when assembling and disassembling the object to be positioned This eliminates the need for winding or unloading work.

In the present invention, the thickness of the substrate to be used is not limited to a specific plate thickness, and the range of use of the substrate plate thickness can be expanded, and since the mechanism is simple, the mold can be easily manufactured and the mold failure is small. In addition, it is possible to perform an efficient attaching / detaching work by the presence of the hole releasing lever while taking advantage of the prior art that can be easily molded and can stabilize the quality and has a good yield.
In addition, by adding means for solving each problem subordinate to the means for solving the first problem, the hole removal workability at the minimum plate thickness is not different from the best hole removal workability at the maximum plate thickness. It can be done with sensation, it can prevent the holding means from falling down when it is seated on the board, the range of size of the positioning object can be expanded, or the assembly and disassembly of the positioning object At the time of work, each of the effects can be achieved, such as winding or removing work can be omitted as compared with the case of a band-like object.

The front view which abbreviate | omitted one part which shows one Example of the attachment / detachment mechanism of the holding means of this invention A part of the band-like part in FIG. 1 is omitted in the longitudinal sectional view along the longitudinal axis. The rear view which abbreviate | omitted one part of FIG. Left side view of FIG. Explanatory drawing of the main part of the present invention Explanatory drawing of the main part of the present invention Explanatory drawing of the main part of the present invention Explanatory drawing of the main part of the present invention Explanatory drawing of the main part of the present invention The front view which shows the other Example of the attachment / detachment mechanism of the holding means of this invention. Explanatory drawing showing an example of conventional technology

1 to 4, the attaching / detaching mechanism 1 includes a base shaft 11 that extends from the head portion 21 of the band-like object 2 that is a holding means as a base end, and a V that extends from the extended end of the base shaft 11 toward the head portion 21 side. A pair of retaining pieces 12 extending in a letter shape, a misalignment preventing piece 13 extending from the extending end of the pair of retaining pieces 12 toward the head 21, and each misalignment preventing piece 13. And a release piece 14 respectively extending in a direction away from the base shaft 11.
When an external force is applied to each retaining piece 12 in the direction of the base shaft 11 via the release piece 14, the vicinity of the extended base end of each retaining piece 12 is reduced to the base shaft 11 side with a base point 12 a, and there is no external force. In the state, the elastic force which expands a diameter to the opposite base side is provided.

Further, the vicinity of the extended base end 14 a of the release piece 14 is weakened so that the elastic force is smaller than the diameter reducing force of the retaining piece 12. In addition, a de-positioning auxiliary lever 15 that extends further to the head 21 side and can press the vicinity of the extended end 13 a extends from the release piece 14.
The deaeration assist lever 15 has a weak waist in the vicinity of the extended base end 14a of the release piece 14, so that when the external force in the direction of the base shaft 11 is applied to the release piece 14, the release piece 14 is more than necessary in the head 1 direction. Thus, the external force is effectively transmitted to the retaining piece 12 through the misalignment prevention piece 13 by pressing the vicinity of the extended end 13a of the misregistration prevention piece 13 without rotating.

This configuration will be described in more detail with reference to FIGS. 5 to 9. The release piece 14 includes an arc-shaped wing 141 capable of applying an elastic force when the substrate P has a minimum plate thickness P 1, and an extended end of the wing 141. The auxiliary hole 15 is formed so as to be parallel to the wing 141 from the inside of the gripping portion 142 toward the extended end 13 a of the misalignment prevention piece 13.
The distance between the extended end of the auxiliary hole 15 and the extended end 13a of the misregistration prevention piece 13 is set to an appropriate distance before the attachment / detachment mechanism 1 is inserted into the hole H of the substrate P. It is arranged. That is, in a state before the attachment / detachment mechanism 1 is inserted into the hole H of the substrate P, when the attachment / detachment mechanism 1 is inserted into the maximum plate thickness P2 of the substrate P, the wing 141 of the release piece 14 is located near the extended base end 14a. The position of the deaeration assist lever 15 that rotates around the center of rotation in the direction of the head 21 but rotates together with the release piece 14 when the retaining piece 12 is completely inserted into the substrate P is the deaeration assist lever 15. The distance between the extended end and the extended end 13a of the misregistration prevention piece 13 is set to be close to contact (see FIG. 7). By setting such an interval, when the attachment / detachment mechanism 1 is inserted into the minimum thickness P1 of the substrate P, the interval between the extended end of the deaeration assist lever 15 and the extended end 13a of the misalignment prevention piece 13 is as follows. Although the interval is slightly larger than that at the maximum thickness P2 of the substrate P, there is little waste in this interval, so that the hole removal workability at the minimum plate thickness P1 is different from the best hole removal workability at the maximum plate thickness P2. There is no sense.

That is, when the thickness of the substrate P is increased, the release piece 14 moves to the head 21 side with the vicinity of the extended base end 14a of the release piece 14 as a rotation fulcrum. At this time, the rotation fulcrum in the vicinity of the extended base end 14a of the release piece 14 is weak and the diameter reducing force of the retaining piece 12 is greater than the elastic force generated by the movement of the release piece 14, thereby preventing misalignment. The force transmitted to the retaining piece 12 through the piece 13 becomes small, and the retaining piece 12 hardly shrinks in diameter, and only the release piece 14 moves (see FIG. 7).
Therefore, even if the thickness of the substrate P is increased, the retaining piece 12 does not come out of the hole H.
In addition, since the extended end of the deaeration assist lever 15 that moves with the release piece 14 approaches the extended end 13a of the misalignment prevention piece 13, an external force is applied to shrink the release piece 14 toward the base shaft 11 side. At this time, the de-hole assist lever 15 comes into contact with the misregistration preventing piece 13 and the diameter of the retaining piece 12 is reduced via the misregistration preventing piece 13, and the rotation fulcrum in the vicinity of the extended base end 14 a of the release piece 14. Even if the waist is weak, the deaeration assist lever 15 works effectively (see FIGS. 8 and 9).

Further, the thickness of the base 12a in the vicinity of the base 12a of each retaining piece 12 is such that when the attaching / detaching mechanism 1 is inserted into the hole H of the substrate P and rotated left or right, it does not deform so that the retaining piece 12 is removed from the hole H. Since the dimensions are set, the retaining piece 12 does not deform even when the hole H is tightened when the attachment / detachment mechanism is fitted into the hole H, so that it can be prevented from coming off the substrate.
The reinforcement in the vicinity of the base point 12a makes use of the advantages of the prior art that the mechanism is simple and the mold is easy to manufacture and that there is little mold failure, that the mold is easy to mold, the quality is stable, and the yield is good. In combination with this, even if the thickness of the substrate P is increased, there is an effect of preventing the diameter reducing action of each retaining piece 12 due to the movement of the position of the release piece.

On the other hand, as is apparent mainly from FIG. 2, the base shaft 11 on the insertion direction side of the substrate P is provided with a step portion 11 a that is larger than the hole H of the substrate 11 and abuts against the surface on the insertion direction side of the substrate P. Provided.
This step portion 11a serves to stabilize the seating of the attachment / detachment mechanism 1 in cooperation with the wing 141 (see FIG. 5) of the release piece 14.

Next, the holding means will be described.
In this embodiment, the holding means is a band-like object 2.
The band-like object 2 is formed by a head portion 21 and a band portion 22 extending from the head portion 21, while a through hole 23 is provided in the head portion 21 and the band portion 22 is disposed in the through hole 23. A claw 24 that can lock the band portion 22 when passing is formed.
The band portion 22 and the claw 24 are locked by forming the claw 24 so as to engage with the saw-toothed ratchet 221 provided on the band portion 22 at a constant pitch. 221 is not provided, the band surface is made substantially flat and the claw 24 shown in each figure is not formed into a claw formed of a thin metal plate, and this claw is bitten into the band surface and locked. Also good.

  The advantage of having the holding means as the band-like object 2 is that even if the size of the object to be positioned changes, the object to be positioned is wound and positioned by the band portion 22, so that the range of the size of the object to be positioned is limited. It can be expanded.

Next, an embodiment will be described in which the holding means is a clip that holds or loosely holds the object to be positioned.
In FIG. 10, the clip 20 of the holding means has semicircular arms 22a and 22b arranged substantially symmetrically in a front view, and is arranged in a state close to a C shape before use.
One ends of the arms 22a and 22b are connected to each other, and rotation fulcrums C1 and C2 are provided to make the arms 22a and 22b close to a circle as shown by phantom lines when used.
In addition, a locking portion male 221 and a locking portion female 222 are provided at each of the other end portions of the arms 22a and 22b.
As described above, the locking portion male 221 and the female 222 lock the other ends of the arms 22a and 22b when the arms 22a and 22b are in a circular state when used, as shown in FIG. Further, the latching state can be released by lifting the lever 223 of the latching portion knife 222.
In addition, when pinching the object to be positioned, when holding the object to be positioned by providing a holding piece 224 having one end pivotally attached to the inside of the arc of each arm 22a, 22b and the other end being free, The other end of the pressing piece 224 is in pressure contact with the arcs of the arms 22a and 22b.
Further, when the object to be positioned is not sandwiched and may be loosely fitted in the clip 20, the pressing piece 224 may not be provided.
Furthermore, in this embodiment, the arms 22a and 22b are in a state close to a front view circle as indicated by virtual lines when in use, but may be a front view quadrangle or a triangle.
On the other hand, the base shaft 11 of the attachment / detachment mechanism 1 is extended with the vicinity of the rotation fulcrums C1 and C2 of the arms 22a and 22b of the clip 20 as the holding means as the base end. Since the subsequent attaching / detaching mechanism 1 is configured in exactly the same way as “Example 1”, the description after the base end of the base shaft 11 applies “Example 1”, and the description here is omitted.

  Since the holding means is the clip 20 that sandwiches or holds the object to be positioned, the winding or unwinding operation can be omitted at the time of assembling and disassembling work as compared with the case of the band-like object 2.

  As described above, the present invention makes it possible to use even when the thickness of the substrate to be used is thick, and since the mechanism is simple, it is easy to manufacture a mold, there are few mold failures, and it is easy to mold. While taking advantage of the prior art that can stabilize the quality and have a good yield, it is possible to achieve the initial purpose of providing an attaching / detaching mechanism for the object to be positioned, which is easy to work in attaching / detaching work, particularly at the time of hole opening.

1 Detachment mechanism 2 Band-shaped object (holding means)
11 Base shaft 11a Step 12 Stopping piece 12a Base point of extension piece (extension base end)
13 Misalignment prevention piece 13a Extension end 14 of position deviation prevention piece Release piece 14a Extension base end 15 of release piece Deaeration assist lever 20 Clip (holding means)
21 Head portion 22 Band portion 23 Through hole 24 Claw H Hole P Substrate P2 Maximum board thickness

Claims (5)

A positioning / removal mechanism for a positioning object holding means for positioning and positioning the positioning object holding means on the substrate by inserting the hole into the substrate,
The attachment / detachment mechanism includes a base shaft extending from the holding means as a base end, a pair of retaining pieces extending in a V shape from the extending end of the base shaft toward the holding means, and the pair of retaining pieces. A misalignment prevention piece extending from the extended end of the position toward the holding means, and a release piece extending in a direction away from the base shaft from each misalignment prevention piece as a starting point. When an external force is applied to each retaining piece via the release piece, the diameter of the retaining piece is reduced toward the proximal side from the vicinity of the extended base end of each retaining piece. Applying an elastic force to expand the diameter toward the base axis side, and further, when the thickness of each of the retaining pieces near the base point is rotated to the left or right while being inserted into the hole of the substrate, the retaining pieces are removed from the holes. The shape and size of the release piece It is possible to make the vicinity of the base end weak enough to make it a small elastic force that does not substantially affect the diameter reducing force of the retaining piece, and in addition, the misalignment prevention piece can be further extended to the holding means side and the vicinity of the extended end can be pressed An attaching / detaching mechanism for the holding means for the object to be positioned, wherein a deaeration assist lever is extended from the release piece.   The positional relationship between the extension hole auxiliary lever extension end caused by the deformation of the release piece at the maximum thickness of the substrate and the extension end vicinity of the misalignment prevention piece is an interval close to contact. The attachment / detachment mechanism for the holding means for the object to be positioned according to claim 1.   The holding of the object to be positioned according to claim 1 or 2, characterized in that a stepped portion that is larger than a hole of the substrate and abuts against a surface on the insertion direction side of the substrate is provided on a base shaft on the insertion direction side of the substrate. Means attachment / detachment mechanism.   The holding means is formed by a head and a band portion extending from the head, while a through hole is provided in the head and the band portion is locked when the band portion passes through the through hole. The attachment / detachment mechanism for holding means for an object to be positioned according to claim 1, wherein a claw that can be formed is a band-like object formed in the head.   The attachment / detachment mechanism for the means for holding the object to be positioned according to claim 1, wherein the holding means is a clip that holds or loosely holds the object to be positioned.

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