JP4236952B2 - connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connector used for pipe connection.
[0002]
[Prior art]
Conventional connectors include those described in Patent Document 1, for example. The thing of the patent document 1 is provided with the connector main body 110 and the retainer 130, as shown in FIG. The connector main body 110 is formed so that the pipe 107 can be inserted. In addition, the retainer 130 is attached to the connector main body 110 and can be moved to a retaining position for retaining the pipe 107 inserted into the connector main body 110. The retainer 130 can be moved to the retaining position when the pipe 107 is completely inserted into the normal connection position of the connector main body 110, and to the retaining position when the insertion of the pipe 107 is incomplete. Movement is prevented. Therefore, whether or not the pipe 107 is completely inserted into the regular connection position of the connector main body 110 can be confirmed based on whether or not the retainer 130 can be moved to the retaining position.
[0003]
[Patent Document 1]
JP 10-509232 A (page 4-9, FIGS. 1 and 2)
[0004]
[Problems to be solved by the invention]
According to Patent Document 1 described above, the retainer 130 is moved to the retaining position after the pipe 107 is inserted into the connector main body 110, but it is confirmed whether or not the retainer 130 has been completely moved to the retaining position. I couldn't.
For example, in a connector used for a fuel pipe of an automobile, in addition to a confirmation work by a connection worker of the pipe 107, a re-confirmation work by visual inspection by an inspector in a later process, a so-called double check is performed.
Therefore, in the thing of the said patent document 1, it is difficult to confirm again visually whether the retainer 130 is moved to the retaining position, and whether the retainer 130 is in the retaining position.
Furthermore, since the connector such as the fuel pipe is often arranged in a narrow place on the lower surface of the floor of the automobile, the reconfirmation work is visually observed from a distant place, making reconfirmation more difficult. It was.
[0005]
The problem to be solved by the present invention is to provide a connector capable of easily performing a confirmation work by a pipe connection worker and a re-confirmation work by a visual inspection by an inspector in a subsequent process.
[0006]
[Means for Solving the Problems]
A connector according to a first aspect of the present invention for solving the above-described problems includes a connector main body, a retainer, and a checker. The connector body is formed so that piping can be inserted. The retainer is provided on the connector main body and is movable to a retaining position for retaining a pipe inserted at a normal connection position of the connector main body. The checker is detachably provided on the connector body. Between the connector main body and the retainer, the retainer is held in a temporarily fixed position by mutual engagement, and the engagement is released by piping inserted in a normal connection position of the connector main body. One engaging means is provided. Between the connector main body and the checker, there is provided second engagement means for holding the checker by mutual engagement and releasing the engagement by the retainer moved to the retaining position. ing.
If comprised in this way, engagement of a 1st engaging means will be cancelled | released by inserting piping in the regular connection position of a connector main body. For this reason, the retainer held at the temporary fixing position can be moved to the retaining position. Then, the retainer is moved to the retaining position, so that the pipe is retained. At the same time, the engagement of the second engagement means is released. For this reason, the checker held by the connector body can be removed.
By the way, if the pipe is not inserted into the normal connection position of the connector main body, that is, when the insertion is incomplete, the engagement of the first engagement means is not released. For this reason, the retainer remains held at the temporary fixing position and cannot be moved to the retaining position. Furthermore, the engagement of the second engagement means is not released unless the retainer is moved to the retaining position. For this reason, the checker remains held by the connector body and cannot be removed. In other words, the checker cannot be removed unless the conditions that the pipe is inserted into the proper connection position of the connector main body and that the retainer is moved to the retaining position next are satisfied.
Therefore, depending on whether or not the checker is removed, the confirmation work by the pipe connection worker and the reconfirmation work by the visual inspection by the inspector in the post-process can be easily performed.
[0007]
The connector according to claim 2 of the present invention is formed so that the checker in the connector according to claim 1 surrounds a retainer temporarily fixed to the connector body.
If comprised in this way, before removing a checker, a retainer will be surrounded by the checker. Further, when the checker is removed, the retainer is exposed. Therefore, when the checker is visually recognized, it can be determined that the pipe connection is incomplete, and when the retainer is visually recognized, it can be determined that the pipe connection is complete. For this reason, it is possible to easily determine whether the pipe is connected or not based on whether the checker is visually recognized and whether the retainer is visually recognized.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described. As shown in FIGS. 2 and 3, the connector 1 includes a connector body 10, a retainer 30, and a checker 40 (see FIG. 1). Moreover, in FIG. 1, the piping 7 connected to the connector 1 is made of, for example, metal and is formed in a substantially round pipe shape. On the outer peripheral surface at a position spaced from the front end surface of the pipe 7, a flange portion 7 a composed of a bulge portion protruding in an annular shape is formed. Hereinafter, the connector main body 10, the retainer 30, and the checker 40 will be described in order.
[0009]
First, the connector body 10 will be described. As shown in FIGS. 2 and 3, the connector body 10 is made of, for example, resin and is formed in a substantially cylindrical shape. One end of the connector main body 10 (the right end in FIGS. 2 and 3) is a pipe connecting portion 11 for connecting the pipe 7 (see FIG. 1). Moreover, the other end part (left end part in FIG.2 and FIG.3) of the connector main body 10 is the tube connection part 12 with which the tube (illustration omitted) made from a synthetic resin is mounted | worn by fitting, for example. Hereinafter, the following description will be given with the pipe connection side of the connector 1 as the front side and the tube connection side as the rear side.
[0010]
The hollow portion in the connector main body 10 is formed by first to fourth hole portions 13 to 16 each having a stepped hole shape in which the inner diameter is gradually increased from the rear toward the front. In the third hole 15, two front and rear O-rings 17 are disposed, and a resin spacer ring 18 positioned between the two O-rings 17 is fixed. In the connector main body 10, a resin stopper ring 19 straddling the third hole portion 15 and the fourth hole portion 16 is fixed. The rear O-ring 17 is prevented from coming off by a spacer ring 18, and the front O-ring 17 is kept from coming off by a stopper ring 19.
[0011]
As shown in FIG. 1, first to third restriction flanges 21 to 23 arranged in parallel at a predetermined interval from the front side to the rear side on the outer peripheral surface of the pipe connection portion 11 of the connector main body 10. Is formed. Each restriction flange 21 to 23 is formed in a substantially quadrangular shape having side edges on the top, bottom, left and right. The second restriction flange 22 is formed so as to expose the upper side portion of the pipe connection portion 11.
[0012]
As shown in FIG. 1, the pipe connecting portion 11 between the first restriction flange 21 and the second restriction flange 22 has a flat lower surface 24 (see FIG. 1) that is horizontal along the tangential direction of the lower end surface. 6) is formed. Both left and right end portions of the flat lower surface 24 are connected to both end surfaces of the pipe connecting portion 11 via the rising side surface 11a (see FIG. 1). The flat lower surface 24 is slightly recessed from the lower edge portions of the first and second restricting flanges 21 and 22.
[0013]
As shown in FIG. 1, between the second restriction flanges 22 and the third restriction flanges 23, the lower ends projecting horizontally in the left-right direction along the tangential direction of the lower end surface of the pipe connection portion 11. A plate portion 25 is formed (see FIGS. 4 and 5). The left and right end portions of the lower plate portion 25 are flush with both side edges of the restricting flanges 22 and 23, and the lower surface of the lower plate portion 25 is flush with the lower edge portions of the restricting flanges 22 and 23. There is no.
[0014]
As shown in FIG. 1, a pair of left and right insertion holes 26 located in the front half portion between the first restriction flange 21 and the second restriction flange 22 are formed in the upper half of the pipe connection portion 11. It is formed symmetrically (see FIG. 6). Further, as shown in FIG. 6, a pair of left and right receiving holes 28 corresponding to both insertion holes 26 are formed in the lower half of the pipe connecting portion 11 in a symmetrical manner. Concave portions 29 (see FIG. 2) that are recessed rearward are formed in the upper half portions of the receiving holes 28, respectively. Moreover, the lower edge part of the recessed part 29 is formed in the inner peripheral side of the pipe connection part 11, and the inclined surface 11b which inclines toward the upper end part of the said rising side surface 11a below from the lower edge part is formed. (See FIG. 1).
[0015]
Next, the retainer 30 will be described. As shown in FIGS. 1 and 9, the retainer 30 is made of resin, and includes a substrate portion 31, left and right guide pieces 32, left and right detection pieces 34, and left and right retaining pieces 37.
As shown in FIG. 1, the board | substrate part 31 is formed in substantially flat form. The board portion 31 is formed between the first restriction flange 21 and the third restriction flange 23 in the connector main body 10 so as to be fitted from above. Further, the left and right guide pieces 32 are formed in a long and thin plate shape that is bilaterally symmetrical and extends downward from the left and right end portions of the rear half of the substrate portion 31 (see FIG. 10). Both guide pieces 32 are engaged between the second restriction flange 22 and the third restriction flange 23 in the connector main body 10 so as to be slidable from above to below (see FIGS. 3 to 5).
[0016]
As shown in FIG. 1, the left and right detection pieces 34 are formed in an elongated plate shape that is symmetrical to the left and right ends of the front half of the substrate portion 31 and extends downward. Both detection pieces 34 are engaged between the first restriction flange 21 and the second restriction flange 22 in the connector main body 10 so as to be slidable from above to below (see FIGS. 3 and 6). The second restriction flange 22 is relatively interposed in the gap between the detection piece 34 and the guide piece 32 (see FIG. 3).
[0017]
Both detection pieces 34 are formed to be elastically deformable, that is, to be able to bend and deform in a direction in which the lower end portion is expanded (see a two-dot chain line 34 in FIG. 6). As shown in FIG. 1, a substantially quadrangular plate-shaped detection protrusion 35 protrudes from the lower ends of both detection pieces 34 so as to face each other. As shown in FIG. 10, a first guide slope 35a (see FIG. 6) that inclines upward from the lower surface side toward the tip, and a rear side from the front side toward the tip, are provided at the tip of each detection projection 35. An inclined second guide slope 35b (see FIG. 3) is formed. Both detection protrusions 35 are engaged with the upper end portions of the receiving holes 28 of the connector main body 10 in the recesses 29 using the elastic deformation of the detection pieces 34 (see FIG. 2). In this state, the tip ends of both detection protrusions 35 protrude into the pipe connection portion 11 (see FIGS. 3 and 6). The position of the retainer 30 corresponds to the “temporary fixing position” in this specification.
[0018]
Note that when the retainer 30 is attached to the connector main body 10 at the temporarily fixed position, the first guide inclined surfaces 35 a of the detection protrusions 35 slide along the outer peripheral surface of the pipe connection portion 11, while detecting both the detection pieces 34. Elastically deform in the direction of spreading The two detection pieces 34 that are elastically deformed are elastically restored by the two detection projections 35 corresponding to the concave portions 29 of the two receiving holes 28, and the two detection projections 35 are engaged in the concave portions 29 of the two reception holes 28. At this time, the vertical movement of the retainer 30 is restricted by the two detection protrusions 35 facing the upper and lower surfaces of the recesses 29 of the two receiving holes 28.
[0019]
As shown in FIGS. 1 and 9, the left and right retaining pieces 37 are formed in an elongated plate shape that is bilaterally symmetrical and extends downward from the front end portion of the substrate portion 31. A locking groove 38 having an inverted U shape and capable of receiving the pipe 7 in the radial direction is formed between the both retaining pieces 37. The both retaining pieces 37 are inserted into the both insertion holes 26 of the connector body 10 from above (see FIG. 6). Further, as shown in FIG. 6, when the retainer 30 is in the temporary fixing position, the both retaining pieces 37 are retracted upward. Further, an interrupt groove 39 is formed between the upper ends of the retaining pieces 37. The interrupt groove 39 is formed so as to be relatively capable of receiving a partition portion (reference numeral 11c) between the insertion holes 26 in the connector main body 10.
[0020]
Next, the checker 40 will be described. As shown in FIG. 1, the checker 40 is made of a resin and is formed in a substantially rectangular tube shape that is opened in the vertical direction by a front plate portion 41, a rear plate portion 45, and left and right side frame portions 46. The checker 40 is attached to the connector body 10 from above so as to surround the first to third restriction flanges 21 to 23 and the retainer 30, and movement in the front-rear direction and the left-right direction is restricted (FIG. 3). reference).
[0021]
As shown in FIG. 1, a substantially inverted U-shaped opening groove 41 a is formed in the front plate portion 41. The opening groove 41 a allows the pipe 7 to be inserted into the connector main body 10 and allows the checker 40 to be removed upward from the pipe 7 inserted into the connector main body 10. On the upper edge part of the front board part 41, the substantially cyclic | annular operation part 43 is connected via the connection part 42 (refer FIGS. 11-13).
Further, as shown in FIG. 1, the rear plate portion 45 is formed with a substantially inverted U-shaped receiving groove 45 a. The receiving groove 45a is fitted to the connector body 10 so that the rear plate portion 45 can be removed from above (see FIGS. 2 and 3).
[0022]
As shown in FIGS. 3 and 6, front contact portions 47 extending in the vertical direction are formed at both corners formed by the front plate portion 41 and the side frame portions 46. A guide slope 47a (see FIGS. 6 and 13) that gradually spreads downward is formed at the lower end of both front contact portions 47. In addition, the rear side having the guide slope 48a (refer to FIG. 11) is formed at both corners formed by the rear plate portion 45 and the both side frame portions 46 and is substantially line symmetrical with respect to the front contact portion 47 in the front-rear direction. The abutting portions 48 are respectively formed. Both the front contact portions 47 face the left and right side surfaces of the first restriction flange 21 and the rear contact portions 48 face the left and right side surfaces of the third restriction flange 23. The movement of the connector body 10 in the left-right direction is restricted. Further, the guide inclined surfaces 47a and 48a of both contact portions 47 and 48 slide while contacting the upper end corners of the restriction flanges 21 and 23 when the checker 40 is attached to the connector body 10 from above. Thus, the checker 40 is guided to a predetermined fitting position.
[0023]
As shown in FIG. 6, the opening portions in the both side frame portions 46 are escape portions 50 that allow elastic deformation (see the two-dot chain line 34 in FIG. 6) of both detection pieces 34 of the retainer 30. . Moreover, as shown in FIG. 1, the both-side frame part 46 is formed with an elongated plate-like engagement piece 52 that extends downward from the upper edge part on the rear side of the relief part 50 (see FIG. 12). . Both the engagement pieces 52 are formed so as to be elastically deformable, that is, bendable and deformable in a direction in which the lower end portion is expanded (see a two-dot chain line 52 in FIG. 12). As shown in FIGS. 4 and 5, both engaging pieces 52 extend in parallel along the guide piece 32 of the retainer 30. A substantially triangular engagement protrusion 53 protrudes from the lower ends of both engagement pieces 52 in an opposing manner. As shown in FIGS. 11 and 12, both engaging protrusions 53 have an upward slope 53a inclined from the upper end portion toward the tip portion, and a downward slope 53b inclined from the lower end portion toward the tip portion. Yes. Engaging grooves 55 that cross in the front-rear direction are formed at the distal ends of the both engaging protrusions 53. As shown in FIGS. 4 and 5, the engagement grooves 55 of the both engagement protrusions 53 are elastically deformed by the engagement pieces 52 with respect to both ends of the lower plate portion 25 in the connector body 10 (in FIG. 12, Engagement is performed using a two-dot chain line 52). Thereby, the vertical movement of the checker 40 relative to the connector main body 10 is restricted.
[0024]
Note that when the checker 40 is attached to the connector body 10 from above, the downward inclined surfaces 53b of the both engagement protrusions 53 slide along the both end portions of the lower plate portion 25 and expand both the engagement pieces 52. To be elastically deformed (see a two-dot chain line 52 in FIG. 12). The elastically deformed engagement pieces 52 are elastically restored by the engagement grooves 55 corresponding to both end portions of the lower plate portion 25, and both engagement grooves 55 are engaged with both end portions of the lower plate portion 25. Let Moreover, the upper part in the front half part of the engagement groove | channel 55 and the lower part in the latter half part are thinned.
[0025]
The connector 1 configured as described above is used as follows. First, the pipe 7 (see FIG. 1) is inserted into the pipe connecting portion 11 of the connector main body 10 of the connector 1 shown in FIGS. At this time, the flange portion 7a of the pipe 7 comes into contact with the front end surface of the stopper ring 19, so that the pipe 7 is completely inserted into the normal connection position of the connector body 10 (see FIG. 7). In this state, as shown in FIG. 7, the pipe 7 sequentially passes through the stopper ring 19, the front O-ring 17, the spacer ring 18, and the rear O-ring 17. At this time, the distal end portion of the pipe 7 reaches the second hole portion 14 of the connector main body 10. Further, both O-rings 17 are brought into contact with the outer peripheral surface of the pipe 7 by utilizing elastic deformation, and the airtightness between the both 7 and 10 is maintained.
[0026]
When the pipe 7 is inserted into the normal connection position of the connector body 10, the flange portion 7 a (see FIG. 1) of the pipe 7 is the second guide slope 35 b (see FIG. 1) of the detection protrusions 35 of the two detection pieces 34 in the retainer 30. 2). Then, the two detection pieces 34 are elastically deformed in a direction in which the two detection pieces 34 are expanded (see the two-dot chain line 34 in FIG. 6), and the detection protrusions 35 of the two detection pieces 34 are shifted laterally from the recesses 29 of the two receiving holes 28. As a result, the lower surfaces of the detection protrusions 35 are disengaged from the recesses 29 of the receiving holes 28, so that the retainer 30 can be moved downward. That is, unless the pipe 7 is inserted into the normal connection position of the connector body 10, the engagement of the lower surfaces of the detection protrusions 35 with the lower edge portions of the recesses 29 of the receiving holes 28 is not released, and the retainer 30 is moved downward. I can't let you. The recesses 29 of the receiving holes 28 and the detection pieces 34 constitute “first engaging means” in this specification.
[0027]
Subsequently, when the substrate portion 31 of the retainer 30 is pushed downward, the retainer 30 is moved downward as shown in FIGS. Then, the detection protrusions 35 of both detection pieces 34 descend while sliding along the inclined surface 11b of the wall portion 11a of the connector main body 10, and finally pass through the flat lower surface 24, whereby both detection pieces 34 are obtained. Is elastically restored. Then, both detection protrusions 35 are engaged with the lower side of the flat lower surface 24, and the upward movement of the retainer 30 is restricted (see FIG. 7). At the same time, the interruption groove 39 of the retainer 30 is relatively engaged with the partition portion 11c of the connector body 10, and the downward movement of the retainer 30 is restricted by the board portion 31 facing the upper side surface of the connector body 10. (See FIG. 7). The position of the retainer 30 corresponds to the “retaining position” in this specification.
[0028]
As described above, when the retainer 30 is moved to the retaining position, both retaining pieces 37 engage with the pipe 7 on the opposite side of the flange portion 7a, that is, on the front side (see FIG. 7). Thereby, the movement of the pipe 7 in the removal direction is restricted, that is, the pipe 7 is prevented from being removed. At this time, the lower end portions of both retaining pieces 37 are respectively inserted into both receiving holes 28 (see FIG. 6) of the connector body 10, whereby the both retaining pieces 37 are reinforced.
[0029]
Further, as the retainer 30 moves to the retaining position, both guide pieces 32 of the retainer 30 descend and slide while abutting on the upward slopes 53a of the engagement protrusions 53 of the engagement pieces 52 of the checker 40 ( (See FIG. 8). Then, as shown in FIG. 8, the engagement of the engagement groove 55 with the lower plate portion 25 is released by elastic deformation in a direction in which both engagement pieces 52 are expanded. For this reason, the checker 40 can be removed upward. That is, unless the retainer 30 is moved to the retaining position, the checker 40 cannot be removed upward. The lower plate portion 25 and the both engagement pieces 52 constitute “second engagement means” in this specification.
[0030]
Then, the checker 40 can be removed from the connector main body 10 by picking up the operation portion 43 of the checker 40 and pulling it upward (see the two-dot chain line 40 in FIG. 8). At this time, the engaging protrusions 53 of the two engaging pieces 52 in the checker 40 slide upward along the two guide pieces 32 of the retainer 30, and thus remain elastically deformed in the direction in which the two engaging pieces 52 are expanded. The checker 40 moves upward. Then, when the engaging protrusions 53 of both engaging pieces 52 are disengaged upward from both guide pieces 32 of the retainer 30, both engaging pieces 52 are elastically restored (see the two-dot chain line 52 in FIG. 8).
[0031]
According to the connector 1 described above, the pipe 7 is inserted into the regular connection position of the connector main body 10, whereby the engagement of the first engagement means by the recesses 29 of the receiving holes 28 and the detection pieces 34 is achieved. Canceled. For this reason, the retainer 30 held at the temporary fixing position can be moved to the retaining position. Then, when the retainer 30 is moved to the retaining position, the pipe 7 is retained. At the same time, the engagement of the second engagement means by the lower plate portion 25 and the both engagement pieces 52 is released. For this reason, the checker 40 held by the connector main body 10 can be removed.
[0032]
By the way, if the pipe 7 is not completely inserted into the normal connection position of the connector body 10, that is, if the insertion is incomplete, the first engagement by the recesses 29 of the receiving holes 28 and the detection pieces 34 is performed. The engagement of the means is not released. For this reason, the retainer 30 remains held at the temporary fixing position and cannot be moved to the retaining position. Further, unless the retainer 30 is moved to the retaining position, the engagement of the second engagement means by the lower plate portion 25 and the both engagement pieces 52 is not released. For this reason, the checker 40 remains held by the connector body 10 and cannot be removed.
That is, the checker 40 cannot be removed unless the conditions that the pipe 7 is inserted into the normal connection position of the connector main body 10 and that the retainer 30 is moved to the retaining position are satisfied. Therefore, depending on whether or not the checker 40 is removed, it is possible to easily perform the confirmation work by the connection worker of the pipe 7 and the re-confirmation work by visual inspection by the inspector in the subsequent process.
[0033]
A checker 40 in the connector 1 is formed so as to surround the retainer 30 temporarily fixed to the connector body 10 (see FIG. 3). For this reason, the retainer 30 is surrounded by the checker 40 before the checker 40 is removed. When the checker 40 is removed, the retainer 30 is exposed. Therefore, when the checker 40 is visually recognized, it can be determined that the connection of the pipe 7 is incomplete, and when the retainer 30 is visually recognized, it can be determined that the connection of the pipe 7 is complete. For this reason, it is possible to easily determine whether the pipe 7 is connected or not based on whether the checker 40 is visually recognized and whether the retainer 30 is visually recognized.
[0034]
In the above-described embodiment, for example, the connector body 10 is a dark color such as black, the retainer 30 is an intermediate color such as brown, and the checker 40 is a light color such as yellow. Color coding is done. Therefore, the connector main body 10, the retainer 30, and the checker 40 can be easily identified by color coding, and whether or not the pipe 7 is connected can be more easily determined.
[0035]
In the above embodiment, the engagement piece 52 of the checker 40 is formed in a long thin plate shape with respect to the side frame portion 46, but the engagement piece 52 is integrally connected to the side frame portion 46. Forms are also conceivable. That is, the side frame portion 46 is formed in a wide shape, and the engagement protrusion 53 having the engagement groove 55 is formed on the inner surface of the side frame portion 46. If comprised in this way, the engagement groove | channel 55 of the engagement protrusion 53 can be engaged with the lower board part 25 in the connector main body 10 by utilizing the elastic deformation of the side frame part 46. FIG.
[0036]
【The invention's effect】
As described above, according to the connector of the present invention, unless the condition that the pipe is inserted into the normal connection position of the connector main body and the retainer is moved to the retaining position is satisfied, the checker is not satisfied. Can not be removed. Therefore, depending on whether or not the checker is removed, the confirmation work by the pipe connection worker and the reconfirmation work by the visual inspection by the inspector in the post-process can be easily performed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a connector according to an embodiment of the present invention.
FIG. 2 is a side sectional view showing a connector.
3 is a cross-sectional view taken along line III-III in FIG.
4 is a cross-sectional view taken along the line IV-IV in FIG. 2;
5 is a cross-sectional view taken along line VV in FIG.
6 is a cross-sectional view taken along the line VI-VI in FIG. 2;
FIG. 7 is a side cross-sectional view showing the connector in a state where pipe insertion is completed and a retainer is pushed in.
8 is a cross-sectional view taken along line VIII-VIII in FIG.
FIG. 9 is a rear view showing the retainer.
10 is a cross-sectional view taken along line XX in FIG.
FIG. 11 is a side sectional view showing a checker.
12 is a cross-sectional view taken along line XII-XII in FIG.
13 is a cross-sectional view taken along line XIII-XIII in FIG.
FIG. 14 is an exploded perspective view showing a connector according to a conventional technique.
[Explanation of symbols]
1 Connector
7 Piping
10 Connector body
30 Retainer
40 checkers

Claims (2)

A connector body, retainer and checker
The connector body is formed so that piping can be inserted,
The retainer is provided on the connector main body and is movable to a retaining position for retaining a pipe inserted at a normal connection position of the connector main body,
The checker is detachably provided on the connector body,
Between the connector main body and the retainer, the retainer is held in a temporarily fixed position by mutual engagement, and the engagement is released by piping inserted in a normal connection position of the connector main body. 1 engaging means,
Between the connector main body and the checker, there is provided second engagement means for holding the checker by mutual engagement and releasing the engagement by the retainer moved to the retaining position. A connector characterized by that. The connector according to claim 1, wherein the checker is formed so as to surround a retainer temporarily fixed to the connector main body.

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