JPH07110089B2 - Conduit fixing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for fixing a conduit used for fixing the conduit to a member such as a wiring box or a power supply box.

[0002]

2. Description of the Related Art An end of a conduit is fixed to a side wall of a wiring box or a power supply box, and an electric wire or a cable is introduced into the box through the conduit, and the end of the conduit is connected to the box. It is known to use a connector type fixing device for fixing to a side wall.

[0003]

Since the conventional fixing device of the connector type is often difficult and troublesome to remove the conduit tube fixed to it, the conduit tube connected to the fixing device has an excessive or insufficient length. However, there is a problem in that it is extremely troublesome to remove the conduit from the fixing device when there is such a problem. On the other hand, the structure in which the fixed conduit can be easily removed has a problem of poor reliability when the conduit is fixed. Further, in the fixing device formed of synthetic resin, there is a problem that it is troublesome to assemble the parts constituting the device.

[0004] The present invention has been made in consideration of the aforementioned problems, Rutotomoni can perform fixing and removal conduits easily and quickly, fabricated co and number of parts is also reduced
It is possible to reduce the number of strikes and facilitate assembly.
Also, the reliability when fixing the conduit in a securely pulled out state
It is an object of the present invention to provide a fixing device for a conduit tube that can improve the above.

[0005]

[Means for Solving the Problems] To achieve the above object
In the electric wire tube fixing device according to the present invention, an opening is formed at a predetermined position in the circumferential direction on a cylindrical body wall made of a synthetic resin in which a mounting portion for another member is formed at a base end portion, and a peripheral edge of the opening is formed. pivotable protrusion across between the outer position and the opening for closing the upper Symbol opening from one location parts through a hinge portion
Is extended , and the tip of this protrusion is
The engaging portion that can be engaged with and disengaged from the provided engaged portion is the projection piece.
It is integrated with the
On the back surface of the projecting piece near the hinge part,
Engage with the engaged part so that the projecting piece closes the opening.
Projected into the inner space of the body wall in the rocking setting state
And then fit it in the recess of the conduit that is inserted in the body wall.
The claw piece is provided integrally with the projecting piece.
On the surface of the engaging part side, insert the conduit into the body wall
There is no such claw piece, and elastically displacing the claw piece in the radially outward direction
Descending toward the conduit insertion direction that allows overcoming
An inclined guide surface is formed and the hinge of the claw piece is formed.
The surface on the part side engages with the inner surface of the recess of the conduit and pulls out the conduit.
It is characterized in that it is formed on an engaging surface for stopping .

[0006]

According to the conduit fixing device of the present invention, the projecting piece
By swinging around the hinge part toward the opening side of the trunk wall
By engaging the engaging portion with the engaged portion of the body wall,
The piece closes the opening. With this opening blocked,
Insert the conduit from one end side and
The convex part is in contact with the guide surface of the claw piece that is provided integrally with the projecting piece
Then, the guide surface is pressed in the pipe insertion direction. This pressing force
Upon receiving, the above-mentioned claw piece is outward in diameter against the elasticity peculiar to synthetic resin.
Allowing to climb over the convex part of the conduit while displacing
Therefore, the conduit can be easily inserted without difficulty. So
Then, the conduit is inserted into the body wall at a specified depth
When the nail piece faces the recess of the pipe, the nail piece is elastically moved.
Return to the inner diameter and fit into the recess of the conduit. This state
The engaging surface of the tab engages the inner surface of the recess of the conduit.
Therefore, even if some pulling force is applied to the conduit,
The conduit will be kept in a strong retaining state,
Therefore, it is easy to insert the conduit into the
When it is plugged in, it will be securely pulled out and the reliability when fixed is high.
Can be turned on .

Further, when removing the once fixed conduit
Use a jig such as a screwdriver to pry the protruding piece to disengage the engaging part from the engaged part, and remove the protruding piece from the circumference of the hinge part.
By swinging the claw outwards, the claw piece integrated with this projecting piece comes out of the recess of the conduit and the fitting is released.
Then, by pulling out the conduit in this state, it is possible to easily pull out the conduit from the body wall.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.
Reveal 1 is a side view of a fixing device 1 according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 is a sectional view taken along line III-III of FIG. 2, and FIG. Device 1
FIG. 5 is a side view showing the main part of FIG.

[0009] fixing device 1, attachment portion 3 is formed on other members such as the side wall of the wire box (not shown) to the proximal end of the body wall 2 which is formed into a cylindrical shape by synthetic resin. The mounting portion 3 has a male screw 31 and a collar portion 32. Yen above
The tubular body wall 2 has a rectangular opening 4, 4 are formed in two positions spaced 180 degrees in the circumferential direction, they opening 4, 4
As shown in FIG. 4, it is formed in a thin-walled shape at one location on the peripheral edge of the sheet, that is, on one side located on the mounting portion 3 side in the illustrated example .
Rectangular protrusions 6 1 , 6 are integrally extended via the so-called plastic hinge parts 5 , 1 . These protrusions 6, 6
Between the the outer position and the opening 4 for closing the opening 4 as shown by arrow A in FIG. 5 by the action of the hinge portion 5, 5
It is configured to swing freely.

[0010] engaging portion 7 to the tip portions of the projecting pieces 6 integrally
Provided, in the body wall 2 portion corresponding to the engaging portion 7
Engaged portion 8 to disengageably the engagement portion 7 is kicked setting is. As shown in FIG. 4, while the engaging portion 7 is provided with a engaging piece 7b protruding the distal end side of the protrusion 6 to the convex portion 7a that protrudes from the back surface of the protrusion 6, body wall The engaged portion 8 on the second side has a stepped portion 8b with which the engaging piece 7b is engaged. The engaging portion 7 is formed to have a width that is substantially the entire width of the projecting piece 6, and the width of the engaged portion 8 is formed to match the width of the engaging portion 7. Further, on each of the projecting pieces 6, from a middle portion of the rear surface in the extending direction F1 from the hinge portion 5, a supporting portion 9a that is protruded in a state of being inclined toward the anti-extending direction F2 side and a tip of the supporting portion 9a are provided. Lead-out portion 9b extending in the anti-extension direction F2 side
Doo is provided integrally, claw piece 9 to the end of the lead portion 9b is integrally provided. Then, the engaging portion 7
The surface of the claw piece 9 on the side of the hinge portion 5 in a state in which the protrusion 6 is engaged with the engaged portion 8 and is set to swing so as to close the opening 4 (see FIGS. 2 and 5). match engaging the inner surface of the recess 102 of the conduit 100 in perpendicular to the axial direction X
Is formed on the engagement surface 91 for preventing slippage , and the surface of the opposite side of the engagement surface 91 from the conduit tube 1 to the body wall 2
With the insertion of 00, elastically deform the claw piece 9 radially outward.
To allow the projection 101 of the conduit 100 to pass over.
The guide surface 92 of the counter selfish descending slope is formed in the insertion direction X2 of the conduit 100 to the.

In the fixing device 1 having the above structure,
The To Description <br/> bright as an example the case of inserting a flexible conduit 100 having a recess 102 of the convex portion 101 and the valley are alternately fixed Yamagata.

As shown in FIG. 5, the mounting portion 3 is inserted into the hole 210 formed in the member 200 such as the electric wire box or the side wall of the wiring box so that the flange portion 32 is brought into contact with the surface of the member 200.
Then , the nut body 220 is screwed into the male screw 31, and the fixing device 1 is attached to the member 200.

Thus attached to the member 200
The conduit 100 to the body wall 2 of the fixing device 1
The conduit 100 is fixed to the member 200 by inserting it from the
Although it is to be fixed, in this insertion fixing work,
First, the hinge 6 is used as a fulcrum to close the opening 4 with the projecting piece 6.
Causes swings location, Ru engaged the <br/> engagement portion 7 with the swing of the projecting piece 6 to the engaged portion 8.

The projecting piece 6 is rocked at the position where the opening 4 is closed in this way.
When set dynamically , the claw piece 9 slightly projects into the inner space of the body wall 2 through the opening 4 (see FIGS. 2 and 5). From this state ,
When the conduit 100 is inserted into the body wall 2, the conduit 100 pushes the claw piece 9 in the inserting direction X1 in the initial stage, so that the claw piece 9 bends or deforms the support portion 9a or the lead-out portion 9b. Due to the bending deformation of the piece 6, it is displaced radially outward. Therefore, the convex portion 101 of the conduit 100 is designed as the downward slope of the claw piece 9.
The guide surface 92 is brought into contact with the inner surface 92 in the pipe insertion direction X1.
Press. In response to this pressing force, the claw pieces 9 are made of synthetic resin.
Conduit 100 while displacing radially outward against the existing elasticity
It is allowed to get over the convex portion 101 of the
100 will be inserted into the body wall 2 without difficulty. When the electric wire tube 100 is inserted into the body wall 2 to a predetermined depth and the claw piece 9 faces the recess 102 of the electric wire tube 100, the elastic recovery of the support portion 9a, the lead-out portion 9b , and the protruding piece 6 is performed. The claw piece 9 displaces in the radial direction and fits into the recess 102 of the conduit 100.

In the above fitted state, the solid line in FIG.
As shown in FIG.
The inner surface of the recess 102 of the
Even if some pulling force is applied to 0, the conduit 100 is still strong.
It will be kept in a strong retaining state and therefore
Reliable locking when securely fixed in a fixed insertion state
Will be raised.

[0016] Conduit 100 fixed as shown in Fig. 5
When removing, the jig T such as a screwdriver is applied to the tip rear surface of the projecting piece 6, and from that state, the projecting piece 6 is pryed to disengage the engaging part 7 from the engaged portion 8 and the projecting piece 6 is removed . Figure 5
Swing outward around the hinge 5 as shown in phantom
By doing so, the claw piece 9 integral with the projecting piece 6 comes out from the recess 102 of the electric wire tube 100, and the fitting is released.
Then, in this state, pull out the conduit 100 in the axial direction X2.
This allows the conduit 100 to be easily pulled out from the body wall 2.
It is possible .

In the fixing device having the above structure, the engaging portion 7
Is engaged with the engaged portion 8 and the opening 4 is closed by the projecting piece 6.
After that, the conduit 100 is inserted into the body wall 2 and fixed.
Before closing the opening 4 with the projecting piece 6,
Insert the conduit 100 into the body wall 2 and, after the insertion, the protruding piece 6
Is swung to engage the engaging portion 7 with the engaged portion 8 and
It is also possible to use so as to close the opening 4.

Further , in the above embodiment, the mounting portion 3
Although the rectangular projecting piece 6 is integrally extended to one side of the opening 4 located on the side through the hinge portion 5, the location where the projecting piece 6 is integrally extended through the hinge portion 5 is shown. It may be another side portion of the opening 4.

[0019]

As described above, according to the present invention, the synthetic tree
Since it is made of fat, one component including each component,
That is, it is easy to make one piece,
Promote downsizing and reduction of manufacturing cost
It is easy to install, and work for assembling parts together
It is unnecessary and can be easily assembled. Also, one
It is also possible to easily remove the conduit tube that is fixed on the base with a simple operation.
It is possible.

Moreover, the projecting piece is swung around the hinge portion.
Engage the engaging part of the protrusion with the engaged part of the body wall to open the body wall.
With the mouth closed, insert the conduit into the body wall from one end side.
It is provided integrally with the protrusion by pulling it in
Displace the claw piece outward in the radial direction against the elasticity peculiar to synthetic resin.
While overhanging the convex part of the conduit against the claw piece,
Can be easily and easily installed, and the conduit
When it is inserted into the body wall to the specified depth,
It is returned to the inner diameter by elastic force and fits into the recess of the conduit.
In this state, the engaging surface of the claw piece is inside the recess of the conduit.
The surface is engaged, and some pulling force is applied to the conduit.
Also, the conduit can be kept in a strong retaining state.
Therefore, the work of inserting and fixing the conduit is very easy and
It can be done quickly, but with the specified insertion state
Is a reliable retaining state to improve reliability when fixing.
The effect that can be achieved.

[Brief description of drawings]

1 is a side view of the fixing device according to the onset Ming embodiment.

2 is a longitudinal cross-sectional view taken along line II-II of Figure 1.

3 is a longitudinal cross-sectional view taken along the line III-III in FIG.

FIG. 4 is a side view showing a main part of the fixing device.

5 is a longitudinal sectional view illustrating the use state of the fixing device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Fixing device 2 Body wall 3 Attachment part 4 Opening 5 Hinge part 6 Projecting piece 7 Engaging part 8 Engaged part 9 Claw piece 91 Engaging surface 92 Guide surface 100 Conduit 101 Convex part of conduit 102 Concave of conduit Location 200 Side wall (member) X-axis direction

Claims (1)

[Claims] 1. An opening is formed at a predetermined circumferential position in a cylindrical cylindrical wall made of synthetic resin, the base end of which is provided with a mounting portion for another member. pivotable protrusion has extended over between the outer position and the opening for closing the upper Symbol opening through to the distal end of the projecting piece, the engageable provided in the cylinder wall To the joint
And an engaging portion that can be engaged and disengaged is integrally provided with the projecting piece.
At the same time, the position closer to the hinge part than the engaging part is
On the back surface of the projecting piece, engage the engaging part with the engaged part and
In the state where the protruding piece is set to swing to the position that closes the opening,
And project into the inner space of the body wall and insert it into the body wall.
Is provided on the claw piece projecting piece integrally fitted to the recess of the conduit has, above the said engaging portion of the surface of the claw piece
When the conduit is inserted into the body wall, pull the claw piece outward in the radial direction.
Is allowed to elastically displace to allow it to pass over the convex part of the conduit.
A guide surface with a downward slope is formed toward the insertion direction of the tube.
And the surface of the claw piece on the hinge part side is
It is formed on the engaging surface that engages with the inner surface of the recess and prevents the conduit from coming off.
A device for fixing conduit tubes, which is characterized in that