JPH11344182A - Connector checking member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector checking member capable of surely checking the connecting state of a connector and remaining in the connector in the failure of connection. SOLUTION: This connector checking member comprises a C-shaped section 51 capable of broadening its diameter due to the elastic deformation externally held from the orthogonal direction of a shaft to the external peripheral face of the housing of a male member, a pair of lockingly protruded sections 52 and 52 integrally protruded inward from both ends of the C-shaped section 51, an inclined motion restraining section 57 extending in the direction (the axial direction of the male member) of the shaft on which the C-shaped section 57 is held, and a ring-shaped handle section 53 extending symmetrically with the C-shaped section 51 through the bent section 55 erected in an L-shape to the axial direction from the inclined motion restricting section 57, and when the male member is inserted into the C-shaped section 51, the C-shaped section 51 is broadened but is still locked to the housing and is removed from the housing by pulling the handle section 53 in the orthogonal direction to the shaft. The bent section 55 mitigates the tension force to the handle section 53 to the C-shaped section 51 and avoid the inclined motion of the C-shaped section 51 when the handle section 53 is pulled obliquely.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector check member for connecting a hose or a pipe for piping.

[0002]

2. Description of the Related Art A connector for connecting a hose or the like preferably has a check member for checking the connection state. The connector shown in FIGS. 9 and 10 is known as a connector having such a check member. This connector is a pipe-shaped male member 8 provided with a ring-shaped projection 80a projecting in the centrifugal direction at a position separated by a predetermined distance from the tip.
0, a female member 82 having a substantially cylindrical housing 81 having an insertion opening end 81a into which the male member 80 is inserted, and inserted and held at the insertion opening end 81a side of the housing 81, and inserted into the housing 81. A locking member 83 for connecting the male member 80 to the female member 82, and a housing 8
1 from the direction perpendicular to the axis,
And a check member 84 for confirming that the male member 80 has been connected to the main body.

[0003] A pair of windows 81b is provided at the end of the housing 81 on the side of the insertion opening end 81a and penetrates in the radial direction and is disposed in the circumferential direction so as to face each other. It has a pair of claws 83a which are elastically deformable in the direction and are arranged at positions corresponding to the windows 81b. As shown in FIG. 10, the check member 84 has a substantially C-shape whose diameter can be expanded by elastic deformation, and a notch groove 81 c continuously provided at an end of the window 81 b of the housing 81. And is externally held on the outer peripheral surface of the housing 81 in a direction perpendicular to the axis. And
The check member 84 is engaged with the edge of the window portion 81b before the male member 80 is joined to the female member 82 to prevent the check member 84 from coming off the housing 81 in a direction perpendicular to the axis. A pair of locking recesses 84a for regulating,
The male member 80 has a pair of distal end contact portions 84b that come into contact with the outer peripheral surface of the ring-shaped protrusion 80a when the male member 80 is inserted.

In the check member 84, before the male member 80 is coupled to the female member 82, the check member 84 is externally held on the outer peripheral surface of the housing 81 from a direction perpendicular to the axis. Is locked to the edge of the window 81b of the housing 81, and the distal end contact portion 84b of the check member 84 is located in the window 81b at a position axially deeper than the claw 83a of the locking member 83. Has been inserted. In this state, the male member 80 is connected to the female member 82.
When inserted into the housing 81, the ring-shaped projection 80a of the male member 80 pushes the claw 83a of the locking member 83 radially outward against its elasticity, and passes through the claw 83a. Thereby, the tip of the claw portion 83a and the ring-shaped protrusion 80
is locked, and the male member 80 and the female member 82 are connected. In this coupled state (the state of FIGS. 9 and 10), the ring-shaped protrusion 80a of the male member 80 pushes the distal end contact portion 84b of the check member 84 outward in the radial direction.
Then, the locking recess 84 a of the check member 84 is
As a result, the check member 84 jumps out of the end portion b due to its elasticity in the direction perpendicular to the axis (the direction of the arrow in FIG. 19). Thereby, it can be confirmed that the male member 80 has been coupled to the female member 82.

[0005]

However, in the above-described conventional check member, when the male member 80 is coupled to the female member 82 and the check member 84 is disengaged from the housing 81 due to its elastic return force, it jumps out. It is necessary to pick up the check member 84 that has fallen off the housing 81 after the connection, and this may be extremely difficult depending on the location where the connector is applied. Further, the above-described conventional check member cannot be applied to a place where the check member 84 is not likely to come off.

A conventional check member is a male member 80.
Before the female member 82 is coupled to the female member 82, the locking concave portion 84a is locked to the edge of the window 81b of the housing 81 only by the elastic restoring force of the check member 84, so that the check member 84 tilts obliquely. Then, there is also a problem that it is easily detached from the housing 81. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and after a male member and a female member are joined, a check member is detached by an artificial operation so that the check member does not pop out due to its elasticity. An object of the present invention is to provide a member.

Another object of the present invention is to provide a connector check member which is hardly detached from a housing.

[0008]

Means for Solving the Problems The inventor of the present application has disclosed in Japanese Unexamined Patent Application No. 9-318703 as a check member that does not protrude from the housing.
The present invention proposes a check member which is locked to the housing even after the connection of the male member to the female member is completed, and needs to be pulled out artificially in this state.

The above check member is as shown in FIG. That is, a cylindrical male member 1 having an insertion end 1c provided with a ring-shaped projection 1a protruding in the centrifugal direction at a position separated by a predetermined distance from the distal end as shown in FIG. Insertion opening end 31 into which portion 1c is inserted
d, and a female member 3 provided at one axial end thereof with a substantially cylindrical housing 31 having a pair of windows 35 penetrating in the radial direction and disposed in the circumferential direction so as to face each other. And a pair of claw portions 43 that are elastically deformable in the radial direction and are disposed at positions corresponding to the window portions 35, and each of the claw portions 43 is located axially deeper from the insertion opening end 31d. Inclines radially inward as you approach
When the male member 1 is inserted, the ring-shaped protrusion 1a is pressed and slidably brought into contact with the inclined inner surface 43a (FIG. 4), and when the male member 1 and the female member 3 are joined, the ring-shaped protrusion 1a is engaged with the ring-shaped protrusion 1a. In the connector including the locking members 4 each having a locking end 43b (FIG. 4) for restricting the male member 1 from coming off, the connector is externally held on the outer peripheral surface of the housing 31 from a direction perpendicular to the axis, and is elastically deformed. The C-shaped portion 94a whose diameter can be expanded and the locking end portions 43 of the claw portions 43 projecting inward from both ends of the C-shaped portion 94a.
b, at a position on the back side in the axial direction of the housing 31 from the respective windows 35 into the housing 31, the state before the male member 1 is coupled to the female member 3 and the male member 1 A pair of locking projections 94b that lock with the circumferential end 35a of the window portion 35 in a state of being coupled to the female member 3, and one end in the axial direction from substantially the center in the circumferential direction of the C-shaped portion 94a; The C-shaped portion 94 integrally extended to at least one of the other ends and held so as to stand in a direction perpendicular to the axis with respect to the housing 31.
at least one tilt restricting portion 57 for restricting the tilting of at least one of the one end side and the other end side in the axial direction by contact with at least the outer peripheral surface of the housing 31;
And the tilt regulating portion 5 symmetrically with the C-shaped portion 94a.
7 is a check member 94 comprising a handle portion 94c extending in a direction perpendicular to the axis.

According to the check member 94, the pair of locking projections 94b at the tips of the C-shaped portions are in a state before the male member 1 is joined to the female member 3, and the male member 1 is When the male member 1 is connected to the female member 3, the check member 94 does not fly out since the male member 1 is locked to the circumferential end 35 a of the window portion 35 in the state where the window member 35 is connected to the female member 3. Then, in order to pull out the check member 94 in a state where the male member 1 is connected to the female member 3, the handle portion 94c is pulled in the direction perpendicular to the axis to form a pair of locking projections 94b at the tip of the C-shaped portion. The check member 94 can be removed from the female member 3 by releasing the locked state of the window 35 with the circumferential end 35a.

When the check member 94 is pulled out of the housing 31 in the direction perpendicular to the axis after the insertion of the male member 1 is completed, the check member 94 is not necessarily pulled out in the same direction. For example, depending on the application location of the connector, the connector may be pulled out only in an oblique direction inclined toward one end or the other end in the axial direction with respect to the direction perpendicular to the axis. Further, there may be a case where the handle portion 94c hits another member and is pulled out obliquely in the same state.

In this case, before the insertion of the male member 1 is completed, that is, the connection between the male member 1 and the female member 3 is not properly completed, and the pair of locking projections 94b of the check member 94 and the window When the handle portion 94c is pulled obliquely to one end or the other end in the axial direction with respect to the direction perpendicular to the axis while the circumferential end 35a of the portion 35 is still locked, a C-shape is formed. A load is applied to the shape portion 94a in a direction opposite to that of the handle portion 94c. This load acts on the side wall of the window portion 35 or the claw portion 43 of the locking member 4. In this state, a load is also applied to the tilt regulating member 57, and the tilt regulating member 57 is elastically deformed. As a result, the pair of locking projections 94b of the check member 94 and the window 3
The engagement of the check member 94 with the circumferential end 35a of the check member 94 is likely to be released. Thus, despite the fact that the connection between the male member 1 and the female member 3 is not completely completed,
If the check member 94 comes off the housing 31, the function as the check member 94 will not be performed.

Therefore, the present inventors have further studied so that the check member does not come off even if the handle portion is pulled out obliquely, and have completed the following check member of the connector of the present invention. That is, the check member of the connector of the present invention is a cylindrical male member having an insertion end provided with a ring-shaped projection protruding in the centrifugal direction at a position separated from the tip by a predetermined distance, and the insertion end is A female member having at one end in the axial direction a substantially cylindrical housing having an insertion opening end to be inserted, and a pair of windows penetrating in the radial direction and circumferentially arranged so as to face each other; And a pair of claw portions that are inserted and held in the inside, are elastically deformable in the radial direction, and are disposed at positions corresponding to the window portions, and each of the claw portions extends axially deeper from the insertion opening end. Inclining radially inward An inclined inner surface with which the ring-shaped protrusion is pressed and slidably contacted when the male member is inserted, and a lock that locks with the ring-shaped protrusion when the male member and the female member are joined to prevent the male member from coming off. A check member of a connector including a locking member having an end portion, a C-shaped portion which is externally held on an outer peripheral surface of the housing from a direction perpendicular to an axis, and whose diameter can be expanded by elastic deformation; Projecting inward from both ends of the portion, and being inserted into the housing from each of the windows at a position on the inner side in the axial direction of the housing relative to the locking end of each of the claw portions, A pair of locking projections for locking the circumferential end of the window in a state before the male member is connected to the female member and in a state where the male member is connected to the female member; One end side in the axial direction from the approximate center of the The C-shaped portion integrally extended at least on one of the end sides and held so as to stand in the direction perpendicular to the axis with respect to the housing has at least one of one end and the other end in the axial direction. At least one tilt restricting portion that restricts tilting to at least the outer peripheral surface of the housing by contact with the outer peripheral surface of the housing, and a handle portion integrally held by the tilt restricting portion via a bent portion. It is assumed that.

[0014]

In the check member of the connector having the above-mentioned structure, the connection between the male member and the female member is not properly completed, and the pair of locking projections of the check member and the circumferential end of the window are not connected. Even when the handle portion is still locked, even if the handle portion is pulled obliquely to one end side or the other end side in the axial direction with respect to the direction perpendicular to the axis, the load due to this is not applied to the C-shaped portion. That is, the load when the handle is pulled diagonally is
Absorbed at the bent portion, no load is applied to the C-shaped portion.
For this reason, the pair of locking projections of the check member are unlikely to come off from the circumferential end of the window, and the check member does not separate from the housing even if pulled strongly, and functions sufficiently as a check member. Can be. In the check member of the connector of the present invention, the tilt regulating portion preferably has a reinforcing rib. Accordingly, the rigidity of the tilt regulating portion is increased, and an effect of further preventing the check member from tilting and detaching from the housing is generated.

In the connector check member of the present invention, it is preferable that the handle portion has a ring shape through which a finger passes and has a cutout portion that breaks when a load equal to or more than a predetermined load is applied. The notch does not break when the connection between the male member and the female member is completely completed, and breaks when the handle is pulled by an extremely strong force in a state where the connection is not completely completed. . As a result, the check member comes off the housing only when the male member and the female member are securely connected, and the check member remains in the case of an incompletely connected state, so that the connection can be confirmed more reliably. it can.

[0016]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be specifically described with reference to FIGS. (Embodiment 1) The check member 5 according to the present embodiment includes a male member 1 connected as shown in FIGS.
It is provided as a member for confirming the connection state with respect to the connector consisting of the female member 3 having the connector 3. As shown in FIGS. 1 to 3, the check member 5 includes a C-shaped portion 51 whose diameter can be expanded by elastic deformation, and a pair of C-shaped portions 51 integrally projecting inward from both ends of the C-shaped portion 51. Locking projections 52, 5
2, a tilt restricting portion 57 extending in the axial direction (axial direction of the female member) holding the C-shaped portion 51, and a bent portion 55 which is bent from the tilt restricting portion 57 in an L-shape in the axial direction and rises. C
It comprises a character-shaped portion 51 and a ring-shaped handle portion 53 extending symmetrically.

The tilt restricting portion 57 is formed to have a concave cross section in order to increase its rigidity in the axial direction, and both ends of the concave shape are reinforcing ribs 57c. Further, small protrusions 57a extending in the inner diameter direction for attaching the check member 5 to the female member 3 without play in the axial direction, and small hook portions 57b are provided at both ends in the axial direction of the tilt regulating portion 57, as described later. Are provided.
The configuration of the check member 5 will be specifically described with the check member 5 mounted on a connector. First, the connector is configured as shown in FIGS. Male member 1 (FIG. 6)
A ring-shaped projection 1a made of a metal or resin pipe and provided at a position spaced a predetermined distance from the tip in a centrifugal direction; and a tip located at a tip side of the ring-shaped projection 1a. 1b.

The female member 3 is made of resin, and is provided with a housing 31 provided at one end in the axial direction (the right side in FIGS. 5 and 6; the same applies hereinafter) and the other end in the axial direction (the left side in FIGS. 5 and 6; The same applies hereinafter) and a hose connection end provided coaxially with the housing 31. And the housing 31
Are large-diameter portions 3 provided coaxially in order from one end in the axial direction.
1a, a middle diameter portion 31b and a small diameter portion 31c, and an insertion opening end 31 into which the insertion end 1c of the male member 1 is inserted.
d is provided at one end in the axial direction. Further, the hose connection end has a shaft hole on the inner peripheral surface, and the outer peripheral surface of the hose connection end is provided with an annular groove and two steps for restricting the hose 2 from coming off. A ring-shaped seal member for sealing the inner peripheral surface of the hose 2 is provided in the groove.
The hose 2 is provided on the outer peripheral surface of the hose connection end.

As shown in FIGS. 5 and 6, the large diameter portion 31a of the housing 31 has a pair of flat walls 31e, 31e extending in parallel with each other, and the flat walls 31e, 3e.
1e is composed of a pair of arc-shaped wall portions 31f, 31f that integrally connect the upper end and the lower end of 1e, respectively. In addition, rectangular windows 35, 35 penetrating in the radial direction and disposed in the circumferential direction so as to face each other are provided at the center portions in the circumferential direction of the respective arc wall portions 31f, 31f.

As shown in FIG. 6, the inner peripheral surface of the middle diameter portion 31b has an elongated cylindrical collar member 36, and the outer peripheral surface of the distal end portion 1b of the insertion end portion 1c inserted into the housing 31. A ring-shaped sealing member 37, a short cylindrical collar member 38, and a ring-shaped sealing member 37 for sealing the outer peripheral surface of the distal end portion 1b are arranged in this order from one end in the axial direction. The inner peripheral surface of the small-diameter portion 31c is inserted into the insertion end 1 inserted into the housing 31.
c is a ring-shaped fitting inner peripheral surface that fits on the outer peripheral surface of the tip portion 1b.

The locking member 4 is made of an elastically deformable resin member, and is inserted and held in the large diameter portion 31a of the housing 31. As shown in FIG. 4, the locking member 4 includes an annular collar portion 41 and a pair of substantially U-shaped portions 4 protruding from the annular collar portion 41 so as to face each other.
2 and 42, and a pair of claws 43, 43 protruding from the respective substantially U-shaped portions 42, 42 so as to be inclined inward in the radial direction with respect to the axis, and being elastically deformable in the radial direction. ing. The claw portion 43 is inclined inward in the radial direction from the insertion opening end 31d toward the back in the axial direction in a state where the locking member 4 is inserted and held in the housing 31,
An inclined inner surface 43a with which the ring-shaped protrusion 1a is pressed and slidably contacted when the male member 1 is inserted, and a member that locks with the ring-shaped protrusion 1a when the male member 1 and the female member 3 are connected to restrict the removal of the male member 1. Toe 43b and circumferential end 3 of window 35 of housing 1
Locking step 4 that locks with 5a and restricts removal of locking member 4
3c. The locking member 4 is held so as to be relatively movable in the axial direction with respect to the housing 31 in consideration of ease of insertion into the housing 31.

By the way, as shown in FIGS. 5 and 6, the check member 5 is provided with locking projections 52, 52 at both ends of the C-shaped portion 51 by expanding the diameter of the C-shaped portion 51.
Can be inserted from the windows 35, 35 and attached to the housing 31. The inner peripheral surface shape of the C-shaped portion 51 corresponds to the outer peripheral surface shape of the large-diameter portion 31a of the housing 31. When the check member 5 is externally held by the housing 31, the inside of the C-shaped portion 51 is formed. The peripheral surface is in close contact with the outer peripheral surface of the large diameter portion 31a in a pressure contact state. As is clear from FIG. 1, the check member 5 has a center line (B-B in FIG. 1) passing through the center of the C-shaped portion 51 in the circumferential direction and the center between the locking projections 52. (Line) is a symmetrical axis.

As shown in FIGS. 1 to 3, each of the locking projections 52, 52 is engaged with the circumferential end 35a of the window 35 before the male member 1 is connected to the female member 3. First locking portions 52a, 52a for stopping the check member 5 from being pulled out of the housing 31 in the direction perpendicular to the axis, and the male member 1
Is located within the trajectory of the ring-shaped protrusion 1a when the male member 1 is inserted before being joined to the female member 3, and is pressed by the ring-shaped protrusion 1a when the insertion of the male member 1 is completed, and The distal end abutting portions 52b, 52b for moving the C-shaped portion 51 so as to expand the diameter thereof and the circumferential edge 35b of the window portion 35 when the insertion of the male member 1 is completed, the C-shaped portion 51 The elastic return force prevents the check member 5 from coming off the housing 31 in the direction perpendicular to the axis, and when the check member 5 is pulled out from the housing 31 in the direction perpendicular to the axis after the insertion of the male member 1 is completed, the circumferential direction of the window 35 is reduced. In order to further increase the diameter of the C-shaped portion 51 through sliding contact with the edge 35b, there are inclined second locking portions 52c, 52c extending inclining toward the substantially centripetal direction of the housing 31. doing.

When the check member 5 is externally held by the housing 31, the locking projections 52 are larger than the locking end 43 b of the claw 43 in the housing 3.
At the position on the back side in the axial direction, the housing is inserted into the housing 31 from the window 35. Further, in the present embodiment, the distal end contact portion 52b of each locking projection 52 is provided in a state in which the check member 5 is externally held by the housing 31 and the male member 1 is not yet connected to the female member 3, The male member 1 has entered the housing 31 to a position where the male member 1 can slide on the outer peripheral surface of the distal end portion 1b.

Here, in this embodiment, the distance between the straight line connecting the circumferential ends 35a of the windows 35 and the outer surface of the flat portion 31e of the housing 31 is determined by the first locking portions 52a,
52a and a straight portion 31 of the C-shaped portion 51
e so as to be slightly larger than the distance from the inner surface of e.
The dimensions of the character-shaped portion 51, the housing 31, and the like are set. With these configurations, the check member 5 is externally held by the housing 31, that is, the first locking portions 52 a of the locking projections 52 of the check member 5 are locked with the circumferential end 35 a of the window 35. In the state of the check member 5
The U-shaped portion 51 is slightly elastically deformed, and this elastic force acts as a force for pressing each first locking portion 52a in a direction substantially perpendicular to each circumferential end 35a of each window 35. . As a result, as shown in FIG. 7, the large-diameter portion 31 a of the housing 31 on the side where the check member 5 is mounted is located between each first locking portion 52 a of the check member 5 and the inner surface of the C-shaped portion 51.
, That is, the side wall of the large-diameter portion 31a in which the inner surface of the C-shaped portion 51 is in close contact with the pressed state, is sandwiched in a direction perpendicular to the axis. Thus, the check member 5 is connected to the housing 3
1 and is firmly and securely held to prevent the check member 5 from moving against the housing 31 and the like.
Even if the check member 5 is pulled out from the housing 31, it cannot be easily pulled out. (Operation) In the check member 5 of this connector, the male member 1
6, the small protrusion 57a on one end side of the tilt regulating portion 57 is fitted to the step between the large diameter portion 31a and the small diameter portion 31b of the housing 31, as shown in FIG. The check member 5 is externally held on the outer peripheral surface of the housing 31 from a direction perpendicular to the axis while the hook portion 57b is locked to the insertion opening end 31d. At this time, each locking projection 52 of the check member 5 is, as shown in FIG.
The locking member 4 is inserted into the housing 31 from each window 35 at a position axially deeper than the locking end 43 b of each claw 43 of the locking member 4 from the window 35, and the locking projection 52 1 locking part 52a is a circumferential end 3 of each window 35
5a. As described above, the first locking portion 52 a of the locking projection 52 is connected to the circumferential end 35 a of the window 35.
And the check member 5 is connected to the housing 3.
1 can be reliably prevented from being pulled out in the direction perpendicular to the axis.
No attempt can be made to pull out from 1 in the direction perpendicular to the axis.

In this state, even if the handle portion 53 is pulled obliquely in the axial direction, the load from the handle portion 53 is absorbed only by the elastic deformation of the bent portion 55, and the C-shaped portion 51
The load caused by the pulling of the handle portion 53 obliquely in the axial direction does not act on. Therefore, the housing 31
The C-shaped portion 51 does not respond to the inclination of the handle portion 53 even if the handle portion 53 is tilted obliquely.

When the insertion end 1c of the male member 1 is inserted into the housing 31 of the female member 3 from the insertion opening end 31d, the ring-shaped protrusion 1a of the male member 1 By pressing and sliding each inclined inner surface 43a of
Each claw 43 is pushed outward in the radial direction against its elasticity and passes through each claw 43. As a result, each of the claws 43 elastically returns radially inward, and the locking end 43 of each of the claws 43 is returned.
b and the ring-shaped projection 1a are locked, and the male member 1 and the female member 3 are connected via the locking member 4.

When the insertion of the male member 1 is completed, as shown in FIG. 8, each tip abutting portion 52b of each locking projection 52 located within the trajectory of the ring-shaped projection 1a is formed in a ring shape. The protruding portions 1a are pressed to move outward in the radial direction, thereby expanding the C-shaped portion 51. When the diameter of the C-shaped portion 51 of the check member 5 is increased in this manner, each inclined second locking portion 52c of each locking projection 52 is attached to the housing 3
Each of the windows 35 abuts on the circumferential edge 35a and is locked. As described above, since the inclined second locking portion 52c of the locking projection 52 is locked to the circumferential edge 35b of the window 35, the check member 5 is resiliently restored by the C-shaped portion 51 so that the check member 5 is moved to the housing 31. Can be reliably restricted from coming off in the direction perpendicular to the axis.

If the check member 5 is to be pulled out of the housing 31 in the direction perpendicular to the axis in this state, each inclined second locking portion 52c of each locking projection 52 and each circumferential edge of each window portion 35 will be described. The C-shaped portion 51
Is further expanded, so that the check member 5 can be easily pulled out of the housing 31 in the direction perpendicular to the axis. Thereby, the connection between the male member 1 and the female member 3 can be confirmed.

As described above, in the connector of the present embodiment, after the male member 1 is connected to the female member 3, the check member 5 does not jump out of the housing 31 due to its elastic return force. For this reason, the housing 31
The work of picking up and collecting the check member 5 that has fallen off the plate becomes unnecessary. Therefore, the connector of the present embodiment can be applied to a place where it is difficult to remove the check member 5 or a place where it is difficult to collect the detached check member 5.

In the check member 5 of the present embodiment, the connection between the male member 1 and the female member 3 is not properly completed, and the pair of locking projections 52 and the window 3
5 is still locked with the circumferential end portion 35a, even if the handle portion 53 is pulled in an oblique direction inclined to one end side or the other end side in the axial direction with respect to the direction perpendicular to the axis, this pulling is performed. The load due to the force acts on the bent portion 55, and the bent portion 55 is elastically deformed, but no load is applied to the C-shaped portion 51.
For this reason, the pair of locking projections 52 of the check member 5 does not easily come off the circumferential end 35a of the window 35, and the check member 5 does not separate from the housing 31 even if pulled strongly.

In particular, as in the check member 5 of the connector of the present embodiment, if the tilt restricting portion 57 is increased in rigidity in the axial direction of the tilt restricting portion 57 by the reinforcing rib 57c, it is difficult for bending to occur. Even if the handle portion 53 is pulled extremely obliquely and the bent portion 55 is deformed to the vicinity of the elastic limit, the load is hardly applied to the C-shaped portion 51 because the tilt regulating portion 57 does not bend. .

The check member 5 according to the fourth embodiment
Is a boundary portion between a ring-shaped handle portion 53 and a neck portion 53b connecting the C-shaped portion 51, and a notch 53c is formed at one end in the width direction of the neck portion 53b on the neck 53b side.
Is provided. If the check member 5 is to be pulled out of the housing 31 in a direction perpendicular to the axis before the insertion of the male member 1 is completed, the notch 53c is formed by the first locking portion 52a of the check member 5 and the circumferential end 35a of the window 35. Is provided so as to break the neck portion 53b of the handle portion 53 before the engagement with the check member 5 is completed.
Is provided so as not to break the neck portion 53b of the handle portion 53 when pulling out from the housing 31 in the direction perpendicular to the axis.

For this reason, with this check member 5, before the insertion of the male member 1 is completed, that is, in a state where the coupling between the male member 1 and the female member 3 is not completely (properly) completed, the operator can handle the handle portion 53. When a finger or the like is hooked on the ring portion 53a of the above and pulled in an orthogonal direction with an extremely strong force, the check member 5
Before the first locking portion 52a and the circumferential end 35a of the window portion 35 are unlocked, the neck 53b of the handle 53 is broken at the notch 53c, and the neck 53 of the check member 5 is broken.
Part b, the C-shaped portion 51 and the portions of the locking projections 52 remain while being held by the housing 31. Therefore, a worker who works thereafter confirms that the check member 5 thus damaged is held in the housing 31 or the like, thereby confirming that the connection between the male member 1 and the female member 3 is not completed. It can be easily confirmed.

When the connection between the male member 1 and the female member 3 is completed (appropriately), the operator pulls the ring portion 53a of the handle 53 of the check member 5 in the direction perpendicular to the axis by finger or the like. If it comes off, cut off the neck 53b of the handle 53.
The check member 5 can be easily formed without being damaged at the portion c.
Can be removed from the housing 31. In the check member of the connector of the present invention, it is preferable that the handle portion has a ring shape through which a finger passes, and has a notch portion that breaks when a load equal to or more than a predetermined load is applied.

[Brief description of the drawings]

FIG. 1 is a front view showing a check member of a connector according to a first embodiment.

FIG. 2 is a side view of a check member of the connector shown in FIG.

FIG. 3 is a top view of a check member of the connector shown in FIG.

FIG. 4 is a perspective view of a locking member provided in a housing.

FIG. 5 is a sectional view showing the female member and the check member before the male member is inserted, and showing the check member and the housing in a longitudinal section.

FIG. 6 is a sectional view of the connector and the check member in a state where the male member is inserted.

FIG. 7 is a cross-sectional view showing a check member for the connector before a male member is inserted.

FIG. 8 is a cross-sectional view of a check member for a connector in which a male member is inserted.

FIG. 9 is a cross-sectional view showing a state where the insertion of the male member is completed, according to the check member of the conventional connector.

FIG. 10 relates to a check member of a conventional connector,
FIG. 5 is a sectional view taken along line EE of FIG.

FIG. 11 is a side view showing a connector and a check member on which the present invention is based.

[Explanation of symbols]

1: male member, 1a: ring-shaped protrusion, 1c: insertion end,
3: female member, 31: housing, 32: contact restricting body, 3
5: window, 35a: circumferential end, 35b: circumferential edge,
4: locking member, 43: claw portion, 43a: inclined inner surface, 43
b: locking end, 5: check member, 51: C-shaped part,
52: locking projection, 52a: first locking portion, 52b: tip contact portion, 52c: inclined second locking portion, 53: handle portion, 5
3a: ring portion, 53b: neck portion, 53c: notch, 5
5: bent portion, 57: tilt regulation portion.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Atsushi Ota 1-4-1 Chuo, Wako, Saitama Prefecture Inside Honda R & D Co., Ltd. (72) Inventor Yasunobu Endo 1-4-1, Chuo, Wako, Saitama Honda R & D Co., Ltd.

Claims (3)

[Claims] 1. A cylindrical male member having an insertion end provided with a ring-shaped projection protruding in a centrifugal direction at a position separated from a tip by a predetermined distance, and an insertion opening end into which the insertion end is inserted. And a female member provided at one axial end with a substantially cylindrical housing having a pair of windows penetrating in the radial direction and disposed in the circumferential direction so as to face each other, and inserted and held in the housing, It has a pair of claw portions that are elastically deformable in the radial direction and are disposed at positions corresponding to the windows, and each of the claw portions is inclined inward in the radial direction from the insertion opening end toward the back in the axial direction. Then, when inserting the male member, the ring-shaped protrusion is pressed and slidably contacted with the inclined inner surface, and when the male member and the female member are joined, the ring-shaped protrusion is locked to prevent the male member from coming off. Connector comprising: locking members each having a locking end A C-shaped part which is externally held on the outer peripheral surface of the housing from a direction perpendicular to the axis, and whose diameter can be expanded by elastic deformation, and integrally protrudes inward from both ends of the C-shaped part. ,
A state before the male member is coupled to the female member by being inserted into the housing from each of the windows at a position on the inner side in the axial direction of the housing with respect to each of the locking end portions of each of the claw portions. And a pair of locking projections that lock with the circumferential end of the window in a state where the male member is coupled to the female member; and one end in the axial direction from substantially the center in the circumferential direction of the C-shaped portion; The C-shaped portion integrally extended to at least one of the other end sides and held so as to stand in a direction perpendicular to the axis with respect to the housing is at least one of the one end side and the other end side in the axial direction. At least one tilt restricting portion that restricts tilting to one side by contact with at least the outer peripheral surface of the housing, and a handle portion integrally held by the tilt restricting portion via a bent portion. Check connector features Member. 2. The connector check member according to claim 1, wherein the tilt restricting portion has a reinforcing rib. 3. The connector check member according to claim 1, wherein the handle portion has a ring shape through which a finger passes, and has a notch portion that breaks when a load equal to or more than a predetermined value is applied.