JP2020136059A - Wire cover and connector - Google Patents

Abstract

To provide a wire cover and a connector equipped with a tie band support base and downsized.SOLUTION: A wire cover 30 includes a cover body 30A, a lock arm 33, and a tie band support base 34. The cover body 30A covers a plurality of wires (not shown) between the cover body 30A and a connector housing 20, and the plurality of wires are extended from an opening 11. The lock arm 33 extends in a cantilever shape, and has a lock portion 32 at a tip end portion. The lock portion 32 locks a lever 40. The lever 40 is a lever for helping the fitting of a counterpart housing (not shown) to the connector housing 20. The tie band support base 34 is provided under the lock arm 33. The tie band support base 34 supports a tie band (not shown) for bundling the plurality of extended wires and fixing the same to the wire cover 30.SELECTED DRAWING: Figure 1

Description

The present invention relates to a wire cover that covers a plurality of wires between the connector housing and extends the wires in a predetermined direction, and a connector provided with the wire covers.

A connector with a wire cover is known. This type of connector has a large number of contacts corresponding to a large number of wires. Therefore, a large fitting force is required for fitting with the mating connector. Therefore, this type of connector is provided with a lever that assists in fitting with the mating connector. The connector of this type has a structure in which the connector is fitted to the mating connector by rotating the lever.

In this type of connector, the mating with the mating connector is started in a state where the lever is rotated to the release position where the mating connector is released from the mating. Then, the lever is rotated from the release position to the fitting position where the mating connector is fitted. Then, the mating connector is pulled in with the rotation, and the connector fits into the mating connector.

Here, this type of connector is provided with a lock portion so that the lever rotated to the fitting position maintains the fitting position.

Further, in the case of this type of connector, it is necessary to bundle a large number of extended wires with a tie band and fix them to this connector. Therefore, it is required that this type of connector be provided with a tie band support base for supporting the tie band.

For example, the lever type connector disclosed in Patent Document 1 is provided with a lock portion of the wire cover for locking the lever, and further serves as a tie band support base protruding from the lock portion in the direction of extension of the wire. A usable protrusion is provided.

Japanese Unexamined Patent Publication No. 2018-37231

The protruding portion that can be used as the tie band support base disclosed in Patent Document 1 described above projects in the direction of extension of the wire. For this reason, the presence of this protrusion pushes the dimensions of the wire cover and the lever-type connector with the wire cover.

In view of the above circumstances, it is an object of the present invention to provide a miniaturized wire cover and connector provided with a tie band support base.

The wire cover of the present invention that achieves the above object is
A cover body that covers multiple wires between the connector housing and extends in the first direction,
A lock arm that extends like a cantilever in the first direction and has a lock portion formed at the tip portion in the first direction to lock a lever that assists fitting of the mating housing to the connector housing by a rotation operation.
It is characterized in that it is provided with a tie band support base for supporting a tie band for bundling a plurality of wires, which is provided below the tip of the lock arm.

The wire cover of the present invention is provided under the lock arm in which the tie band support base is vertically overlapped with the tip end portion of the lock arm. As a result, the wire cover of the present invention has been miniaturized.

Here, in the wire cover of the present invention, an insertion passage through which the tie band is inserted may be formed between the tie band support base and the lock arm.

In the case of the wire cover of the present invention, the lock arm exists on the tie band support base. Therefore, by adopting a structure in which the tie band is inserted from the side, the height can be lowered rather than the tie band support base being greatly separated from the lock arm.

Further, in the wire cover of the present invention, the lock arm is provided with a laterally protruding protruding portion that intersects the first direction at a position where the lock arm faces the tie band support base and forms the upper surface of the insertion passage.
It is preferable that the cover body is provided with a locking wall that locks on the protruding portion when an upward force that separates the lock arm from the tie band support is applied to the lock arm to prevent excessive displacement of the lock arm.

In the case of a configuration in which an insertion passage for inserting the tie band is provided, an upward force for separating the lock arm from the tie band support may inadvertently act during the tie band insertion work or in other situations. .. When the above-mentioned protruding portion and the locking wall are provided, excessive displacement of the lock arm is prevented even if an inadvertent upward force is applied.

Further, the connector of the present invention that achieves the above object is
With the connector housing
With any form of wire cover of the present invention
It is characterized by being provided with a lever that assists fitting of the mating housing to the connector housing by a rotation operation in the first direction.

According to the above invention, a miniaturized wire cover and connector provided with a tie band support can be realized.

It is a perspective view of the wire cover of one Embodiment of this invention and the lever supported by the wire cover. It is a side view which showed the cross section of the wire cover and the lever along the arrow AA shown in FIG. It is a perspective view of a wire cover alone. It is a perspective view which showed the cross section along the arrow BB shown in FIG. It is a rear view which showed the cross section along the arrow CC shown in FIG.

Hereinafter, embodiments of the present invention will be described.

FIG. 1 is a perspective view of a wire cover according to an embodiment of the present invention and a lever supported by the wire cover. FIG. 1 also shows the schematic shape of the connector housing with a alternate long and short dash line. The feature of this embodiment is in the wire cover, which is also related to the lever, but is not directly related to the connector housing. However, here, in order to grasp the entire connector, an outline of this connector will be described with reference to FIG. 1.

The connector 10 includes a connector housing 20, a wire cover 30, and a lever 40.

The lever 40 shown in FIG. 1 is in a fitting position which is a position when a mating connector (not shown) is fitted to the connector 10 shown in FIG. This fitting position is a position in which the lever 40 is rotated in the direction indicated by the arrow R.

The wire cover 30 has a dome shape that opens downward (on the connector housing 20 side) and bulges upward. The wire cover 30 covers a large number of wires (not shown) connected to a large number of contacts (not shown) supported by the connector housing 20. An opening 11 is formed between the wire cover 30 and the connector housing 20. A large number of wires extend in the direction of arrow X from the opening 11. The orientation indicated by the arrow X corresponds to an example of the first orientation referred to in the present invention.

The lever 40 extends in a substantially inverted U shape so as to straddle the wire cover 30 in the width direction. Holes 41 are provided at both ends of the lever 40. On the other hand, protrusions 31 that enter into the holes 41 at both ends of the lever 40 are provided on both side surfaces of the wire cover 30. Then, the lever 40 rotates about the protrusion 31 as the center of rotation between the fitting position shown in FIG. 1 and the release position rotated in the direction opposite to the arrow R.

A pinion gear 42 (see FIG. 2) is formed around the hole 41 in the lever 40. The pinion gear 42 meshes with a rack (not shown) provided on a plate-shaped slider (not shown). The sliders are inserted one by one into the slots 21 on both sides of the connector housing 20. The slider is formed with a cam groove (not shown) into which a cam follower (not shown) provided in the mating connector is inserted.

In fitting with the mating connector, first, the lever 40 is rotated to the release position. Then, the mating connector is arranged at the initial position of fitting so that the cam follower of the mating connector is applied to the inlet portion of the cam groove provided on the slider. Then, the lever 40 is rotated from its release position to the fitting position shown in FIG. Then, during the rotation, the slider on which the rack is formed slides due to the rotation of the pinion gear of the lever 40. Then, this slide pulls the cam follower of the mating connector into the cam groove of the slider. By this pulling in, the mating connector is fitted to the connector 10.

The wire cover 30 is provided with a lock portion described below so that the lever 40 that has rotated to the fitting position shown in FIG. 1 maintains the fitting position.

FIG. 2 is a side view showing a cross section of the wire cover and the lever along the arrows AA shown in FIG.

Further, FIG. 3 is a perspective view of the wire cover alone.

Further, FIG. 4 is a perspective view showing a cross section taken along the arrow BB shown in FIG.

Further, FIG. 5 is a rear view showing a cross section taken along the arrow CC shown in FIG.

As shown in FIGS. 2 to 4, a lock portion 32 is formed at the end of the wire cover 30 in the direction of the arrow X. The wire cover 30 is provided with a lock arm 33 extending like a cantilever from the cover body 30A in the direction of arrow X. The lock portion 32 is formed at the tip portion of the lock arm 33 extending in the direction of the arrow X. As shown in FIG. 2, the locking claw 43 of the lever 40 that has been rotated to the fitting position by the rotation operation in the direction of the arrow R is locked to the lock portion 32. Then, the lock portion 32 locks the lever 40 so that the lever 40 stays at the fitting position. As described above, the lever 40 is a lever that assists in fitting the mating housing (not shown) to the connector housing 20 (see FIG. 1) by rotating the lever 40 from the released position in the direction of the arrow R.

Further, a tie band support base 34 is provided at a position (under the tip of the lock arm 33) of the wire cover 30 that overlaps with the tip of the lock arm 33. As shown in FIG. 5, the tie band support base 34 is an arc-shaped base. An insertion passage 35 through which the tie band (not shown) is inserted is formed on the tie band support base 34 (between the tie band support base 34 and the lock portion 32). A tie band is passed through the insertion passage 35, and a large number of wires (not shown) extending from the opening 11 are bundled with the tie band passed through the insertion passage 35. By doing so, a large number of wires are bundled, and the tie band is supported by the tie band support base 34 and fixed to the wire cover 30.

Further, the lock arm 33 has a pair of projecting portions 36 protruding in the left-right lateral direction indicated by arrows YY intersecting the directions of arrows X at positions forming the upper surface of the insertion passage 35 facing the tie band support base 34. It is formed. On the other hand, the cover body 30A is provided with a locking wall 37 above the protruding portion 36, and the protruding portion 36 is submerged under the locking wall 37.

The lock portion 32 is provided at the tip end portion of the lock arm 33 extending in the shape of a cantilever. An insertion hole 35 through which the tie band is inserted is formed under the lock portion 32. Therefore, when the tie band is inserted into the insertion hole 35, an upward force may be applied to the lock portion 32. When an upward force is applied to the lock portion 32, the lock arm 33 tends to bend upward. If the lock arm 33 bends significantly upward, the elastic limit of the lock arm 33 may be exceeded and the normal function of the wire cover 30 may be lost. In the case of this embodiment, the protruding portion 36 and the locking wall 37 are provided. Therefore, when an upward force that separates the lock portion 32 from the tie band support base 34 acts, the protruding portion 36 abuts against the locking wall 37, prevents excessive displacement of the lock portion 32, and causes the lock arm 33 to become large upward. It is prevented from bending. Therefore, the occurrence of defects in the lock arm 33 due to the work of inserting the tie band into the insertion hole 35 is suppressed, and the workability is improved without the need to use extra nerves for the insertion work.

As described above, according to the present embodiment, the tie band support base 34 is provided under the lock arm 33 to realize miniaturization.

10 Connector 20 Connector housing 21 Slit 30 Wire cover 30A Cover body 31 Protrusion 32 Lock part 33 Lock arm 34 Tie band support base 35 Insertion passage 36 Protrusion part 37 Locking wall 40 Lever 41 Hole 42 Pinion gear 43 Locking claw

Claims (4)

A cover body that covers multiple wires between the connector housing and extends in the first direction,
A lock arm is formed at the tip of the first direction so as to extend in a cantilever shape in the first direction and lock a lever that assists fitting of the mating housing to the connector housing by a rotation operation. When,
A wire cover provided below the tip of the lock arm and provided with a tie band support base for supporting a tie band for bundling the plurality of wires. The wire cover according to claim 1, wherein an insertion passage through which the tie band is inserted is formed between the tie band support base and the lock arm. The lock arm includes a laterally projecting portion that intersects the first orientation at a position that faces the tie band support and forms the upper surface of the insertion passage.
The cover body is provided with a locking wall that locks on the protruding portion when an upward force that separates the lock arm from the tie band support is applied to the lock arm to prevent excessive displacement of the lock arm. The wire cover according to claim 1 or 2. With the connector housing
The wire cover according to any one of claims 1 to 3 and
A connector including a lever that assists fitting of a mating housing to the connector housing by a rotation operation in the first direction.

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