JP5812435B2 - connector - Google Patents

Description

  The present invention relates to a connector.

  In Patent Document 1, a first housing, a circular gear having a cam groove and rotatably provided in the first housing, a second housing having a cam follower, and a plurality of teeth along the length direction are disclosed. There is disclosed a connector provided with a band-shaped jig formed with. In this connector, the first housing and the second housing are shallowly fitted and the cam follower is inserted into the cam groove, the teeth of the belt-shaped jig are engaged with the teeth on the outer periphery of the gear, and the belt-shaped jig is moved in the length direction. The first housing and the second housing are fitted by the cam action by the engagement of the cam groove and the cam follower by rotating the gear by pulling on the first gear.

JP 2012-043743 A

In the above connector, when the belt-like jig is engaged with the gear, the belt-like jig is inserted into the first housing at a position shifted in the rotational axis direction with respect to the gear, and the inserted belt-like jig is placed in the rotational axis direction. It is designed to slide and mesh with the gear. That is, the belt-shaped jig meshed with the gear can be easily detached from the gear by being displaced in the direction of the rotation axis of the gear, and the second housing remains in the state where the first housing and the belt-shaped jig are assembled. It is difficult to carry in the work site with the housing. Therefore, it is necessary to set the belt-like jig in the first housing before the fitting work at the fitting work site, and work efficiency is not good.
The present invention has been completed based on the above-described circumstances, and an object thereof is to improve the working efficiency at the fitting site of the housing.

As means for achieving the above object, the present invention provides:
A first housing;
A circular gear formed with a cam groove and rotatably provided in the first housing;
A plurality of driven teeth formed on the outer periphery of the gear;
A second housing that is engageable with the first housing and includes a cam follower engageable with the cam groove;
A belt-shaped jig that has a plurality of drive teeth arranged along the length direction and is attached to the first housing so as to be capable of relative displacement in the length direction in a state where the drive teeth mesh with the driven teeth;
A restricting portion for restricting displacement of the belt-shaped jig in a direction of removing the driving tooth from the driven tooth;
In the state where the driving tooth and the driven tooth are engaged with each other, the gear and the stopper for restricting the displacement of at least one of the belt-shaped jigs are provided.

  According to this configuration, if the displacement of the gear is restricted by the stopper, the belt-like jig is held in the state assembled to the first housing due to the engagement between the driving tooth and the driven tooth. Moreover, even if the displacement of the belt-shaped jig is restricted by the stopper, the belt-shaped jig is held in a state assembled to the first housing. According to the present invention, since the first housing and the band-shaped jig can be carried into the mating work site with the second housing in the assembled state, the band shape is formed before the mating work at the mating work site. The work of setting the jig in the first housing is unnecessary, and the work efficiency is excellent.

The perspective view of the 1st housing of Example 1. Perspective view of gear Top view of gear Side view of strip jig Perspective view of second housing A perspective view showing a state in which displacement is restricted by assembling a gear and a band-shaped jig to the first housing. Front view showing a state where displacement is restricted by assembling a gear and a band-shaped jig to the first housing AA line sectional view of FIG. BB sectional view of FIG. Plan sectional view showing a state where fitting of the first housing and the second housing is started The perspective view showing the state which started the fitting of the 1st housing and the 2nd housing Plan sectional view showing a state where fitting of the first housing and the second housing is completed Side sectional view showing a state in which the first housing and the second housing are fitted and the gear is restricted in displacement. Plane sectional view showing a state in which the belt-shaped jig is removed from the gear after the first housing and the second housing are completely fitted.

The connector of the present invention
The strength of the driving tooth is set higher than the strength of the driven tooth;
The belt-shaped jig may be pulled out from the first housing after the first housing and the second housing are fitted.
According to this configuration, after the two housings are properly fitted, when the belt-shaped jig is displaced with an operating force that exceeds the locking force between the drive teeth and the driven teeth, the driven teeth are plastically deformed, thereby Dissociates from the gear and disengages from the first housing. Since the belt-like jig can be extracted from the first housing without plastically deforming the drive teeth, the belt-like jig can be reused.

The connector of the present invention
A fitting portion may be provided that is formed at the center of the gear so as to be exposed on the outer surface of the first housing and allows the gear to rotate by fitting a general-purpose tool.
According to this configuration, after the two housings are properly fitted and the strip jig is removed from the first housing, the two housings can be detached by fitting the general-purpose tool to the fitting portion and rotating the gear. Can do.

The connector of the present invention
The stopper may be engaged with the gear to restrict the rotation of the gear when the gear is in an initial position that allows the cam follower to enter the cam groove.
According to this configuration, since the gear is held at the initial position by the stopper, the fitting operation of both housings is started immediately without displacing the gear and the belt-shaped jig at the fitting site with the second housing. be able to.

The connector of the present invention
A housing space that is formed inside the first housing and houses a region of the gear where the cam groove is formed;
An exposed portion formed on the gear and exposed on an outer surface of the first housing;
An indicator portion may be provided that is formed on an outer surface of the first housing and the exposed portion, and that allows visual confirmation that the gear is in the initial position.
According to this configuration, when the gear and the strip-shaped jig are assembled to the first housing, the position of the inlet of the cam groove cannot be visually confirmed. However, the index portion of the first housing and the index portion of the gear By visually confirming the positional relationship, the gear can be positioned at the initial position.

<Example 1>
Embodiment 1 of the present invention will be described below with reference to FIGS. The connector of this embodiment includes a first housing 10, a gear 30, a strip-shaped jig 40, and a second housing 50. In the following description, the left side in FIGS. 8 to 10 is the front side in the front-rear direction of the first housing 10, and the right side in FIG. 10 is the front side in the front-rear direction of the second housing 50.

<First housing 10>
The first housing 10 is made of synthetic resin, and is configured by integrally forming a block-shaped terminal accommodating portion 11 and a rectangular hood portion 13 as shown in FIGS. A well-known male terminal fitting 12 is inserted into the terminal accommodating portion 11 from the rear of the first housing 10. The hood portion 13 is composed of a lower wall portion 14, left and right side wall portions 15, and an upper wall portion 16. The lower wall portion 14 has a form extending forward from the front end of the lower surface wall of the terminal accommodating portion 11. The left and right side wall portions 15 are configured to extend upward from the left and right side edges of the lower wall portion 14 and the upper ends of the left and right side edges of the terminal accommodating portion 11. The upper wall portion 16 has a form in which the upper end edges of the left and right side wall portions 15 are connected to each other above the terminal accommodating portion 11.

  As shown in FIGS. 8 and 9, a region in front of the terminal accommodating portion 11 in the space in the hood portion 13 is a fitting space 17 for fitting the second housing 50 therein. A region above the terminal accommodating portion 11 in the space in the hood portion 13 is an accommodating space 18 for accommodating the gear 30. The accommodation space 18 penetrates from the front end to the rear end of the first housing 10. The upper end region of the fitting space 17 and the front end side region of the accommodating space 18 are a common space.

  As shown in FIG. 1, a circular bearing hole 19 having a locking edge portion 20 on the inner periphery is formed through the central portion in the left-right direction of the upper wall portion 16. At the hole edge of the bearing hole 19 on the upper surface (outer surface) of the upper wall portion 16, an initial position indicator portion 21 (an indicator portion which is a constituent element of the present invention) and a fitting position indicator portion 22 that can be visually identified. Are formed at predetermined angular intervals in the circumferential direction.

  The upper wall portion 16 is formed with a stopper 23 that is surrounded by a substantially U-shaped slit. The stopper 23 is configured to extend rearward in a cantilevered manner and can be elastically bent in the vertical direction (direction intersecting the displacement direction of the gear 30). A locking protrusion 24 that protrudes downward (in a direction protruding into the accommodation space 18) is formed at the rear end portion (extending end portion) of the stopper 23. The stopper 23 functions as a means for selectively holding the gear 30 at the initial position and the fitting position.

  As shown in FIG. 8, the left side wall portion 15 of the wall portions constituting the hood portion 13 functions as a first restriction portion 25 (a restriction portion that is a constituent feature of the present invention). Further, as shown in FIG. 7, the left side edge portion of the upper wall portion 16 and the left side edge portion of the upper surface of the terminal accommodating portion 11 are a pair of upper and lower second restricting portions 26 that are vertically opposed to each other. It is a regulation department). The first restricting portion 25 and the second restricting portion 26 allow the belt-like jig 40 to be displaced in the direction (front-rear direction) in which the gear 30 is rotated. However, the first restricting portion 25 restricts the belt-like jig 40 from displacing the driving tooth 43 from the driven tooth 38 in the radial direction (that is, leftward) direction. Further, the second restricting portion 26 restricts the belt-like jig 40 from being displaced in a direction in which the driving tooth 43 is removed from the driven tooth 38 in the vertical direction. That is, the restricting portions 25 and 26 function as means for maintaining the state where the belt-like jig 40 is engaged with the gear 30.

<Gear 30>
The gear 30 is made of synthetic resin and has a disk shape as shown in FIGS. A shaft portion 31 (exposed portion which is a constituent feature of the present invention) is formed to project from the center of the upper surface of the gear 30. The shaft portion 31 includes a prismatic portion 32 disposed in the central portion and four comb-shaped elastic locking pieces 33 arranged so as to face each side of the prismatic portion 32. The shaft portion 31 is formed with a fitting portion 34 having a shape in which the upper surface of the prism portion 32 is recessed in a hexagonal shape. On the upper surface of one elastic locking piece 33 among the four elastic locking pieces 33, a movable side index portion 35 (an index portion which is a constituent element of the present invention) that can be visually recognized by forming a triangular shape is formed. Has been.

  An initial position locking groove 36 for holding the gear 30 in the initial position and a fitting position locking groove 37 for holding the gear 30 in the fitting position are formed on the upper surface of the gear 30. . The initial position locking groove 36 and the fitting position locking groove 37 are disposed at positions radially outward from the shaft portion 31 (rotation center of the gear 30), and are spaced apart from each other in the circumferential direction.

  A plurality of driven teeth 38 are continuously formed on the outer periphery of the gear 30 at a constant pitch over the entire periphery. The gear 30 is formed with a cam groove 39 whose bottom surface is recessed. The inlet 39 </ b> E of the cam groove 39 is open on the outer peripheral surface of the gear 30. The back end of the gear 30 is spaced apart from the inlet 39E in the circumferential direction and is located on the inner side of the inlet 39E in the radial direction.

  The gear 30 is assembled into the accommodation space 18 from the front of the first housing 10. At this time, in order to avoid the shaft portion 31 from interfering with the upper wall portion 16, the upper wall portion 16 is elastically deformed upward. When the gear 30 reaches a predetermined assembly position in the housing space 18, the upper wall portion 16 is elastically restored and the shaft portion 31 is fitted into the bearing hole 19. At this time, the four elastic locking pieces 33 are once elastically deformed inward (in a direction approaching the prismatic portion 32) and then locked to the locking edge portion 20 from the outer surface side (upper surface side). Accordingly, the shaft portion 31 is fitted in a state in which relative displacement in the vertical direction (the axial direction of the shaft portion 31) is restricted with respect to the upper wall portion 16.

  Thereby, the gear 30 is assembled | attached to the 1st housing 10 so that it can rotate centering | focusing on the axis | shaft (shaft part 31 and the bearing hole 19) of an up-down direction. In the assembled state, most of the gear 30 excluding the shaft portion 31 is housed in the housing space 18, and the upper surface of the shaft portion 31 is exposed on the upper surface of the upper wall portion 16. A region on the front end side of the gear 30 (a region in front of the shaft portion 31) is positioned so as to protrude forward from the terminal accommodating portion 11. In addition, at the left end portion of the gear 30, a part of the driven tooth 38 is opposed to the first restricting portion 25 that extends straight in the front-rear direction in the radial direction.

  In the state where the gear 30 is in the initial position, as shown in FIG. 9, the locking projection 24 of the stopper 23 is locked in the locking groove 36 for the initial position, and the rotation of the gear 30 is restricted by the semi-locking function of the stopper 23. The When the gear 30 is in the initial position, the inlet 39E of the cam groove 39 opens forward. When a rotational force exceeding the locking force between the initial position locking groove 36 and the locking projection 24 acts on the gear 30, the rotation restriction by the stopper 23 is released. In the state where the gear 30 is in the fitting position, as shown in FIG. 13, the locking projection 24 of the stopper 23 is locked in the locking groove 37 for the fitting position, and the gear 30 is moved by the stopper 23 semi-locking function. Rotation is restricted. When a rotational force exceeding the locking force between the engagement position locking groove 37 and the locking protrusion 24 acts on the gear 30, the rotation restriction by the stopper 23 is released.

<Strip-shaped jig 40>
The strip-shaped jig 40 is a synthetic resin jig used when the housings 10 and 50 are fitted together. As shown in FIG. 4, the belt-like jig 40 is formed by integrally forming a main body portion 41 having a long belt shape and an operation portion 42 connected to the base end portion of the main body portion 41. Since the width dimension of the operation part 42 (the dimension in the vertical direction when the two housings 10 and 50 are fitted) is larger than the width dimension of the main body part 41, the operation part 42 is easily grasped by the hand. A plurality of drive teeth 43 are formed on the surface of the main body 41 so as to be arranged at a constant pitch (the same pitch as the driven teeth 38) in the length direction. The band-shaped jig 40 is made of a material having higher strength than the gear 30.

<Second housing 50>
The second housing 50 is made of a synthetic resin, and has a block shape as a whole as shown in FIG. As shown in FIG. 13, a well-known female terminal fitting 53 is accommodated in the second housing 50. A cylindrical cam follower 51 is formed to protrude from the upper surface of the second housing 50. A pair of left and right guide ribs 52 are formed on the left edge of the upper surface of the second housing 50.

<Working process of mating>
When the two housings 10 and 50 are fitted together, the gear 30 and the strip-shaped jig 40 are assembled to the first housing 10 at the same time. At this time, as shown in FIG. 8, the gear 30 is placed in the rotation restricted state by the stopper 23 so that the gear 30 is in the initial position. When the gear 30 is held at the initial position, the inlet 39E of the cam groove 39 opens toward the front of the first housing 10, and the cam follower 51 can enter the inlet 39E of the cam groove 39.

  On the other hand, the belt-like jig 40 engages the driving teeth 43 with the driven teeth 38 from the left side of the gear 30 and the main body 41 faces in the front-rear direction, together with the gear 30 from the front of the first housing 10. It is accommodated in the accommodating space 18. A region of a predetermined length on the base end side (operation unit 42 side) of the main body 41 and the operation unit 42 are in front of the first housing 10 (the direction opposite to the fitting direction of the second housing 50 with respect to the first housing 10). ). In a state where the belt-like jig 40 is assembled to the first housing 10, the back surface of the main body portion 41 (the surface on the side opposite to the drive teeth 43) is in contact with or close to the first restricting portion 25. In addition, the main body 41 is sandwiched between the pair of second restricting portions 26. By means of the first restricting portion 25 and the second restricting portion 26, the belt-like jig 40 is held in a state where the drive teeth 43 are engaged with the driven teeth 38.

  The belt-like jig 40 is restricted from relative displacement in the tangential direction (front-rear direction) with respect to the gear 30 by meshing the drive teeth 43 with the driven teeth 38. The gear 30 is held in a state in which the rotation is restricted at the initial position by the locking action of the stopper 23. Therefore, the belt-like jig 40 and the gear 30 are held in an assembled state in which relative displacement is restricted with respect to the first housing 10. Thereby, the 1st housing 10, the gear 30, and the strip | belt-shaped jig | tool 40 can be stored and conveyed as one unit.

  The unitized first housing 10, gear 30, and strip-shaped jig 40 are carried into the fitting site of both housings 10 and 50. When fitting, as shown in FIG. 10, the second housing 50 is shallowly fitted into the hood portion 13 of the first housing 10, and the cam follower 51 enters the inlet 39 </ b> E of the cam groove 39. The 40 main body portions 41 are passed between the pair of left and right guide ribs 52 in front of the first housing 10. Thereafter, the first housing 10 and the operation portion 42 are grasped, and the belt-like jig 40 is pulled so as to be displaced relative to the front of the first housing 10. The pulling direction of the belt-like jig 40 at this time is opposite to the fitting direction of the second housing 50 with respect to the first housing 10. Moreover, since the main-body part 41 is passed between the guide ribs 52, the position of the strip | belt-shaped jig | tool 40 in the left-right direction is stabilized. The displacement path of the belt-like jig 40 is a tangential straight path with respect to the outer periphery of the gear 30.

  When the belt-like jig 40 is pulled, the stopper 23 is elastically deformed so that the locking projection 24 is disengaged from the initial position locking groove 36, and the gear 30 is engaged from the initial position due to the engagement of the drive teeth 43 and the driven teeth 38. Rotate towards position. As the gear 30 rotates, the second housing 50 is drawn into the first housing 10 (hood portion 13) by the cam action caused by the engagement between the cam groove 39 and the cam follower 51, and the fitting proceeds. When the gear 30 reaches the fitting position, as shown in FIG. 12, both the housings 10 and 50 are in a proper fitting state.

  When the gear 30 reaches the fitting position, as shown in FIG. 13, the stopper 23 is elastically restored, and the locking projection 24 is locked in the locking groove 37 for the fitting position. 30 is held in the fitting position. Then, due to the engagement of the cam groove 39 and the cam follower 51, both the housings 10 and 50 are held in the normal fitting state. Further, in a state where the gear 30 has reached the fitting position, the drive teeth 43 and the driven teeth 38 remain engaged near the tip of the main body 41, but this is driven before the gear 30 reaches the fitting position. This is to prevent the teeth 43 from coming off the driven teeth 38.

  When the two housings 10 and 50 are properly fitted, the gear 30 is restricted in rotation by the locking of the stopper 23, and the second housing 50 abuts against the front end surface of the terminal accommodating portion 11 and stops in front. Then, it is transmitted to the hand holding the operation unit 42 of the operator. Thereafter, the operator strongly pulls the belt-like jig 40 while holding the operation unit 42. When the tensile force exceeds the strength of the driven teeth 38, the driven teeth 38 are plastically deformed so as to be scraped by the drive teeth 43, and the gear 30 is held in the fitted position without rotating as shown in FIG. The belt-like jig 40 is pulled out while being done. Thus, the fitting operation of both housings 10 and 50 is completed.

  When the two housings 10 and 50 are properly fitted and the belt-like jig 40 is removed from the first housing 10 and then the two housings 10 and 50 in the fitted state are separated, as shown in FIG. A hexagon wrench 55 (a general-purpose tool that is a constituent element of the present invention) is fitted into the fitting portion 34 exposed on the outer surface (upper surface) of the housing 10, and the gear 30 is rotated to the initial position side. Then, both the housings 10 and 50 are detached by the cam action by the engagement between the cam groove 39 and the cam follower 51.

  The connector of the present embodiment includes a gear 30 in which a cam groove 39 is formed, a driven tooth 38 formed on the outer periphery of the gear 30, a second housing 50 having a cam follower 51 that can be engaged with the cam groove 39, A belt-like jig 40 that has a plurality of drive teeth 43 arranged along the length direction and is attached to the first housing 10 so as to be capable of relative displacement in the length direction in a state where the drive teeth 43 are engaged with the driven teeth 38. In a state where the belt-shaped jig 40 is engaged with the first restricting portion 25 and the second restricting portion that restrict the displacement of the driving tooth 43 in the direction of removing the driving tooth 43 from the driven tooth 38, and the driving tooth 43 and the driven tooth 38. And a stopper 23 for restricting the displacement of the gear 30.

  According to this configuration, if the displacement of the gear 30 is restricted by the stopper 23, the belt-like jig 40 is held in the state assembled to the first housing 10 due to the engagement of the drive teeth 43 and the driven teeth 38. As a result, the first housing 10 and the belt-like jig 40 can be carried into the fitting work site with the second housing 50 in the assembled state. The work of setting the jig 40 to the first housing 10 is unnecessary, and the work efficiency is excellent.

  Further, in the connector of the present embodiment, the strength of the drive teeth 43 is set higher than the strength of the driven teeth 38 so that the belt-like jig 40 is pulled out from the first housing 10 after the housings 10 and 50 are fitted. It has become. According to this configuration, after the housings 10 and 50 are properly fitted, when the belt-like jig 40 is displaced with an operating force that exceeds the locking force between the drive teeth 43 and the driven teeth 38, the driven teeth 38 are plastically deformed. As a result, the belt-like jig 40 is detached from the gear 30 and detached from the first housing 10. Since the belt-like jig 40 can be extracted from the first housing 10 without plastically deforming the drive teeth 43, the belt-like jig 40 can be reused.

  In the connector of this embodiment, when the gear 30 is in the initial position where the cam follower 51 is allowed to enter the cam groove 39, the stopper 23 is locked to the gear 30 to restrict the rotation of the gear 30. Yes. According to this configuration, since the gear 30 is held at the initial position by the stopper 23, the two housings 10, 10 can be immediately assembled without displacing the gear 30 and the belt-shaped jig 40 at the fitting site with the second housing 50. 50 fitting operations can be started.

  In the connector according to the present embodiment, since the housing space 18 for housing the region where the cam groove 39 is formed in the gear 30 is formed inside the first housing 10, the gear 30 and the belt-like shape are formed in the first housing 10. When the jig 40 is assembled, the position of the inlet 39E of the cam groove 39 cannot be visually confirmed. However, a shaft portion 31 exposed on the outer surface of the first housing 10 is formed on the gear 30, an initial position indicator portion 21 is formed on the outer surface of the first housing 10, and a movable side indicator portion 35 is formed on the outer surface of the shaft portion 31. When the gear 30 is in the initial position, the movable side index portion 35 has a positional relationship corresponding to the initial position index portion 21. According to this configuration, the gear 30 can be positioned at the initial position by visually confirming the positional relationship between the movable side index portion 35 and the initial position index portion 21.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, when the two housings are fitted, the band-shaped jig is pulled. However, the two housings are fitted by pushing the band-shaped jig into the first housing. Also good.
(2) In the above embodiment, when the two housings are fitted, the belt-shaped jig is pulled in the direction opposite to the fitting direction of the second housing with respect to the first housing (that is, in front of the first housing). However, the belt-shaped jig may be pulled in a direction parallel to the fitting direction of the second housing with respect to the first housing (that is, rearward of the first housing), or pulled in a direction intersecting with the fitting direction of both housings. You may do it.
(3) In the above embodiment, the belt-like jig is displaced along a tangential linear path with respect to the outer periphery of the gear. However, the belt-like jig is curved in a circular arc shape to have a predetermined angle on the outer circumference of the gear. You may make it mesh | engage over a range.
(4) In the above embodiment, after the two housings are properly fitted, when the strip-shaped jig is removed, the driven teeth of the strip-shaped jig are not deformed and the driven teeth of the gear are deformed (plastic deformation). However, when removing the belt-shaped jig, the driven teeth of the belt-shaped jig may be plastically deformed without deforming the driven teeth of the gear, and the drive teeth of the belt-shaped jig and the driven teeth of the gear may be deformed. Both may be plastically deformed.
(5) In the above embodiment, the belt-shaped jig is removed from the first housing after the two housings are properly fitted. However, after the two housings are fitted together, the belt-shaped jig is assembled to the first housing. You can leave it.
(6) In the above embodiment, the stopper is locked only to the gear. However, the stopper may be locked to both the gear and the band-shaped jig, or may be locked only to the band-shaped jig. .
(7) In the above embodiment, the stopper is formed integrally with the first housing. However, the stopper may be formed integrally with the gear and locked to the first housing or the band-shaped jig, or formed integrally with the band-shaped jig. Then, it may be locked to the first housing or the gear.
(8) In the above embodiment, the number of gears is one. However, by arranging a plurality of gears in a direction orthogonal to the fitting direction of both housings and rotating the plurality of gears synchronously with one belt-like jig. Both housings may be fitted together. By doing so, it is possible to prevent the inclination of the posture in the fitting process between the two housings. Further, as a form in which a plurality of gears are synchronously rotated by a single band-shaped jig, the band-shaped jigs are arranged tangentially to the outer periphery of the plurality of gears, and the band-shaped jigs are perpendicular to the fitting direction of both housings. A configuration in which the belt-shaped jig is disposed between two gears arranged close to each other and the belt-shaped jig is displaced in parallel with the fitting direction of the two housings is possible.
(9) In the above embodiment, the hood portion for fitting the second housing into the first housing is formed, and the gear is accommodated in the hood portion. However, the housing recess in a form in which the outer surface of the first housing is shallowly recessed. The gear may be housed in the housing recess, and the first housing and the gear may be fitted into a hood formed in the second housing.
(10) In the above embodiment, a fitting portion exposed on the outer surface of the first housing is formed in the center portion of the gear, and the gear can be rotated by fitting a general-purpose tool to the fitting portion. However, the gear may be in a form that does not form such a fitting portion.
(11) In the above embodiment, after the sensor is attached to the belt-shaped jig and the first housing and the two housings are fitted, the belt-shaped jig remains assembled to the first housing, or the belt-shaped jig is the first housing. You may make it detect whether it was extracted from.

DESCRIPTION OF SYMBOLS 10 ... 1st housing 18 ... Accommodating space 21 ... Initial position index part (index part of 1st housing)
23 ... Stopper 25 ... First restriction part (regulation part)
26 ... 2nd regulation part (regulation part)
30 ... Gear 31 ... Shaft (exposed part)
34 ... Fitting part 35 ... Moving side index part (gear index part)
38 ... driven tooth 39 ... cam groove 40 ... belt-shaped jig 43 ... drive tooth 50 ... second housing 51 ... cam follower 55 ... hexagon wrench (general-purpose tool)

Claims (5)

A first housing;
A circular gear formed with a cam groove and rotatably provided in the first housing;
A plurality of driven teeth formed on the outer periphery of the gear;
A second housing that is engageable with the first housing and includes a cam follower engageable with the cam groove;
A belt-shaped jig that has a plurality of drive teeth arranged along the length direction and is attached to the first housing so as to be capable of relative displacement in the length direction in a state where the drive teeth mesh with the driven teeth;
A restricting portion for restricting displacement of the belt-shaped jig in a direction of removing the driving tooth from the driven tooth;
A connector comprising: a stopper that restricts displacement of at least one of the gear and the belt-shaped jig in a state where the driving tooth and the driven tooth are engaged with each other. The strength of the driving tooth is set higher than the strength of the driven tooth;
The connector according to claim 1, wherein the belt-shaped jig is pulled out from the first housing after the first housing and the second housing are fitted together.   3. A fitting portion that is formed at the center of the gear so as to be exposed on the outer surface of the first housing, and that allows the gear to rotate by fitting a general-purpose tool. The connector described.   The stopper is engaged with the gear to restrict the rotation of the gear when the gear is in an initial position where the cam follower is allowed to enter the cam groove. The connector according to any one of claims 1 to 3. A housing space that is formed inside the first housing and houses a region of the gear where the cam groove is formed;
An exposed portion formed on the gear and exposed on an outer surface of the first housing;
5. The connector according to claim 4, further comprising an index portion formed on an outer surface of the first housing and the exposed portion, and capable of visually confirming that the gear is in the initial position.

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