JP2014145431A - Concatenation mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a concatenation mechanism in which a body to be concatenated can be prevented from being locked by moving a lock body when it is not necessary to lock the body to be concatenated, and the body to be concatenated can be locked by a simple operation to the lock body when it is necessary to lock the body to be concatenated.SOLUTION: A concatenation mechanism 1 comprises: a body 2 to be concatenated including a part 21 to be engaged; a concatenating body 3 including a part 31 to be fitted, a guiding part 32, and an arrangement part 33; and a lock body 4 including a fitting part 41, a part 42 to be guided, and an engaging part 43 for locking the body 2 to be concatenated. The lock body 4 can be shifted between an engaged state and a disengaged state. The lock body 4 can be shifted to an engagement avoided state where the lock body cannot be shifted to the engaged state and can be shifted to the disengaged state. When shifting from the engagement avoided state to the disengaged state, the part 42 to be guided is guided by the guiding part 32 and when shifting from the disengaged state to the engaged state, the part 42 to be guided is fitted with the part 31 to be fitted.

Description

  The present invention relates to a coupling mechanism. More specifically, when it is not necessary to lock the coupled body, the locking body is prevented from moving and locking the coupled body, and when it is necessary to lock the coupled body, to the locking body It is related with the connection mechanism which can lock a to-be-connected body by simple operation of.

  Conventionally, for example, an engaged portion of a connected body arranged on a connected body and an engaging portion of a lock body, which are used in an adjusting device for adjusting the attachment length of a control cable used in a vehicle, are engaged. Thus, a coupling mechanism for locking the coupled body is known. For example, in Patent Document 1, as shown in FIGS. 11 and 12, a rod 101, a holder 102 to which one end of the rod 101 is movably attached in the length direction of the rod 101, and a holder 102 On the other hand, there is disclosed an adjusting device 100 including a lock piece 103 provided so as to be movable in and out in a direction perpendicular to the axial direction of the rod 101 and a slider 104 provided on the holder 102 so as to be movable in the axial direction of the rod 101. ing.

  11 and 12, the adjusting device 100 moves the protrusion 103 b of the lock piece 103 downward from the state shown in FIGS. 11 and 12 against the urging force of the leaf spring 103 a (see FIG. 12) of the lock piece 103. By pushing in the direction, the protrusion 103c of the lock piece 103 moves the slider 104 to the left in FIG. 11 and moves downward. After the protrusion 103c of the lock piece 103 gets over the slider 104, when the lock piece 103 is further pushed into the holder 102, the engaging claw 103d (see FIG. 12) of the lock piece 103 engages with the lower surface 102a of the holder 103. At the same time, the female screw 103e of the lock piece 103 and the male screw 101a of the rod 101 can be engaged to fix the rod 101.

  On the other hand, in Patent Document 2, as shown in FIGS. 13 and 14, a fastening body 201 in which a locking end (not shown) having a first locking tooth is inserted into the outer periphery of a rod-shaped member. And a fastening member of a control cable having a key member 202 having a second locking tooth 202a that is detachably attached to the fastening main body 201 and is locked when the first locking tooth is inserted. In this fastening member, a first groove 201b is provided in the window hole 201a of the fastening body 201, and when the key member 202 is inserted into the fastening body 201, the convex part 202b of the key member 202 is formed on the first groove 201b. They are fitted and temporarily inserted. In this temporarily inserted state, the control cable is not fastened to pre-tension the wire cable. And in this state, since the protrusion part 202c (refer FIG. 14) of the key member 202 protrudes outside the window hole 201c of the fastening main body 201, the key member 202 is further tightened from the temporarily inserted state. Even if it pushes into 201, the lower end of projection part 202c contacts the edge of window hole mouth 201c, and it is constituted so that key member 202 may not move below.

  When the control cable is fixed to the fastening member from the temporarily inserted state, the operation portion 202d of the key member 202 is bent inward, and the protruding portion 202c is moved inward from the window hole 201c. Further, the key member 202 can be further inserted, and the female screw (second locking tooth 202a) of the key member 202 and the male screw (first locking tooth) of the control cable are locked to complete the fixing.

Japanese Patent Laid-Open No. 2006-57664 Japanese Patent No. 4606701

  However, when the adjusting device 100 described in Patent Document 1 applies an unexpected force in a direction to push down the lock piece 103 except when it is necessary to actually lock the rod 101 such as during the conveyance of the adjusting device 100. The lock piece 103 may be pushed down and the rod 101 may be locked. Further, in the fastening member described in Patent Document 2, it is necessary to insert a force into the window hole 201a after applying a force so that the operation portion 202d of the small key member 202 is deformed when fixing the control cable. There is a problem that the insertion operation is difficult.

  In view of such a problem, the present invention prevents the locked body from moving and locking the coupled body when it is not necessary to lock the coupled body, and it is necessary to lock the coupled body. In some cases, an object of the present invention is to provide a coupling mechanism that can lock the coupled body by a simple operation on the locking body.

  The coupling mechanism of the present invention includes a coupled body having a coupled body, a coupled section, a guiding section, and a coupling body having a placement section in which the coupled body is movably disposed, and fitting. A locking body having an engaging portion that engages with the engaged portion of the connected body arranged in the placement portion and locks the connected body. The lock body is engaged with the engaged portion and the engaging portion, and the engaged portion and the engaging portion are engaged, and the engaged portion and the engagement portion. A coupling mechanism that is capable of transitioning to a disengaged state that is not engaged with a joint, wherein the lock body is unable to transition to the engaged state and is capable of transitioning to the disengaged state. When the transition of the lock body from the engagement avoidance state to the disengagement state is performed, the guided portion is moved to the guide portion. Is the inner, when moving to the engaged state from the disengaged state of the lock body, wherein the guided portion is mated with the fitted portion.

  Moreover, it is preferable that the lock body shifts from the engagement avoidance state to the engagement release state by the rotation of the lock body.

  In addition, it is preferable that the lock body is prevented from being detached from the coupling body by the guided portion being guided by the guide portion.

  According to the coupling mechanism of the present invention, it is possible to prevent the locked body from moving and locking the coupled body when the coupled body is not locked by the locking body, and the coupled body. When the lock is required, the lock body and the coupling body can be fitted by a simple operation on the lock body.

  Further, when the lock body shifts from the engagement avoidance state to the engagement release state due to the rotation of the lock body, it is possible to more reliably prevent the connected body from being locked. Further, the space for moving the lock body can be saved, and the entire coupling mechanism can be reduced in size.

  When the guided body is guided by the guiding section, the lock body can be more easily operated when locking the coupled body when the locked body is prevented from being detached from the coupled body. .

It is a perspective view which shows the connection mechanism of this invention. (A) is a top view which shows the coupling body used for the coupling mechanism of this invention, (b) is sectional drawing of a coupling body. It is a perspective view of the lock body used for the connection mechanism of this invention. It is the bottom view which looked at the lock body used for the connection mechanism of this invention from the engaging part side of the lock body. It is a side view of the lock body of the present invention. It is the sectional view on the AA line of FIG. 3b. It is a top view which shows the engagement avoidance state of the connection mechanism of this invention. It is a side view which shows the engagement avoidance state of the connection mechanism of this invention. It is a schematic diagram of the BB line cross section of FIG. It is a top view which shows the disengagement state of the connection mechanism of this invention. It is a side view which shows the disengagement state of the connection mechanism of this invention. It is a figure which shows the engagement state of the connection mechanism of this invention, and is sectional drawing which shows the state before the engagement nail | claw part of a lock body engages with the engagement protrusion of a connection body. It is a figure which shows the engagement state of the connection mechanism of this invention, and is sectional drawing which shows the state after the engagement nail | claw part of a lock body engaged with the engagement protrusion of the connection body. It is sectional drawing which shows the conventional connection mechanism. It is sectional drawing which shows the conventional connection mechanism. It is a perspective view which shows the fastening main body used for the other conventional connection mechanism. It is a perspective view which shows the key member used for the other conventional connection mechanism.

  Hereinafter, the connecting mechanism of the present invention will be described in detail with reference to the accompanying drawings.

  As shown in FIGS. 1 to 3 d, the connecting mechanism 1 according to the present invention has a connected body 2 having an engaged portion 21, a fitted portion 31, a guide portion 32, and the connected body 2 moves. The connecting body 3 having the arrangement portion 33 that can be arranged, the fitting portion 41, and the guided portion 42, and the engaged portion 21 of the to-be-connected body 2 arranged in the arrangement portion 33. And a lock body 4 having an engaging portion 43 (see FIGS. 3 a to 3 d) for locking the coupled body 2. The connection mechanism 1 of the present invention is a mechanism for connecting the connected body 2 and the connected body 3 by the lock body 4 (or fixing after the connection). In particular, by configuring the connected body 2 to be movable relative to the connected body 3, the position of the connected body 2 is adjusted with respect to the connected body 3 before the connected body 2 is fixed by the lock body 4. After the position of the coupled body 2 is adjusted with respect to the coupled body 3, the coupled body 2 can be fixed by the lock body 4. In the following embodiments, the coupled body 2 is movable with respect to the coupled body 3, the position of the coupled body 2 is adjusted, and then the coupled body 2 is fixed to the coupled body 3, thereby An adjustment device for adjusting the length (floating length) of a control cable (not shown) attached to the body 2 will be described as an example. However, the present invention is not limited to an adjusting device that adjusts the length of the control cable, and the connection mechanism 1 can be used in various ways that require position adjustment of the connected body 2 to the connection body 3 and connection after the position adjustment. Can be used for various purposes.

  In the embodiment shown in FIG. 1, the coupled body 2 is shown as a rod-shaped member, and includes a shaft portion 22 and an engaged portion 21 provided at one end of the shaft portion 22. As shown in FIG. 1, the engaged portion 21 has annular grooves and annular protrusions formed alternately in the longitudinal direction of the coupled body 2, and grooves and protrusions are formed alternately in succession. It is possible to engage with the engaging portion 43 (see FIGS. 3a and 3b) of the lock body 4 thus made. The engaged portion 21 only needs to have a structure that can be engaged with the engaging portion 43 of the lock body 4. The engaged portion 21 is engaged by using a male screw as the engaged portion 21 and a female screw as the engaging portion 43. It does n’t matter. Moreover, although the to-be-connected body 2 is shown as a rod with a circular cross section in FIG. 1, the to-be-connected body 2 may have a rectangular or polygonal cross section. The body 2 can have various shapes. When the coupling mechanism 1 is used to adjust the length of the control cable, the control cable is connected to the other end side of the coupled body 2 (the end section where the engaged section 21 is not provided). Fixed.

  In this embodiment, since the to-be-connected body 2 is movably arranged on the arrangement portion 33 of the coupling body 3, as shown in FIGS. 1, 2 (a) and (b), the arrangement of the coupling body 3 is arranged. It is inserted and held in insertion holes 33 a and 33 b provided in the portion 33. Since the openings of the insertion holes 33a and 33b are formed to be slightly larger than the outer peripheral portion of the coupled body 2, when the coupled body 2 is not engaged with the lock body 4, the arrangement portion 33 It is movable in the longitudinal direction of the connected body 2 (the left-right direction in FIGS. 2A and 2B). On the free end side of the engaged portion 21, a stopper 23 is formed to prevent the coupled body 2 from coming out of the arrangement portion 33. In the embodiment shown in FIG. 1, the stopper 23 is shown as a pair of leaf spring-like stoppers that bend inward when inserted into the insertion holes 33a and 33b and return to the original state after insertion. Other members such as E-rings or other structures may be used as long as the connected body 2 does not come out of the placement portion 33 after the connection body 2 is placed in the placement portion 33.

  The coupling body 3 is a holder to which the coupled body 2 is coupled and held. For example, when a driving side device such as a shift lever or a driven side device such as a transmission is coupled by a control cable, the coupling side device and / or A connection body 3 is attached to a connection portion between the driven device and the control cable attached to the connected body 2, and the length of the control cable is adjusted via the connected body 2. As shown in FIGS. 1, 2 (a) and 2 (b), the connection body 3 includes an arrangement portion 33 where the connected body 2 is movably disposed, and the connection body 3 as a driving side device or a driven side device. A mounting portion 34 is provided for mounting to the above. In FIGS. 1, 2A and 2B, the attachment portion 34 is shown with a circular attachment hole formed therein, but the shape of the attachment portion 34 is not particularly limited. In addition to the insertion holes 33a and 33b described above, the arrangement portion 33 is formed with a cavity portion 33s in which the lock body 4 can be inserted perpendicularly to the moving direction of the coupled body 2. The lock body 4 is inserted into the hollow portion 33 s so that the coupling body 3 and the coupled body 2 are coupled. Further, the connecting body 3 is formed with a movement space 35 that is communicated between the cavity portion 33s and the attachment portion 34 via the cavity portion 33s and the insertion hole 33b, and the axial length of the movement space 35 (see FIG. 2 (a), the to-be-connected body 2 is configured to be movable in the axial direction.

  The lock body 4 is a member for locking the coupled body 2 whose position is adjusted in the arrangement portion 33 of the coupled body 3, that is, for restricting movement of the coupled body 2 in the axial direction after the position adjustment. As described above, the lock body 4 is formed with the engaging portion 43 that engages with the engaged portion 21 of the connected body 2, and the lock body 4 is inserted into the cavity portion 33 s of the connecting body 3. Thereby, the engaging part 43 and the engaged part 21 are engaged, and the movement of the coupled body 2 in the axial direction is restricted. As shown in FIGS. 3a to 3d, the lock body 4 of the present embodiment has an arch-shaped lock body main body having a substantially U-shaped cross section, and is engaged with the inside of the lock body main body having a substantially U-shaped cross section. A portion 43 is formed. On the outer side of the lock body main body, a fitting portion 41 that fits with the fitted portion 31 of the coupling body 3 is formed along the insertion direction of the lock body 4 into the cavity portion 33s. A guided portion 42 is formed continuously with the fitting portion 41 on the free end side (the insertion end side inserted into the cavity portion 33 s) of the lock body main body having a substantially U-shaped cross section. Each of the guided portions 42 is formed with one notch portion 42 a, and the guided portion 42 is guided by the guide portion 32 of the connecting body 3 and the fitted portion 31 of the connecting body 3 as described later. It is comprised so that it may be fitted. In this embodiment, as shown in FIGS. 3a and 3c, in the vicinity of the free ends of the three protrusions in which the guided portion 42 and the fitting portion 41 are continuously formed on the outer peripheral side of the lock body 4, One notch 42a is formed in each. However, the shape and structure of the guided portion 42, the fitting portion 41, and the cutout portion 42a are not particularly limited as long as the effects of the present invention described later can be obtained. For example, the fitting part 41 and the guided part 42 of the lock body 4 may be discontinuous outside the lock body main body.

  In the present embodiment, the lock body 4 is engaged with at least one engaging protrusion 36 (two engaging protrusions 36 are shown in FIG. 2A) provided in the cavity 33s. The engaging claw portion 45 is formed, and the lock body 4 and the connecting body 3 can be reliably locked. The engagement protrusion 36 provided in the hollow portion 33 s is provided at a position where it can engage with the engagement claw portion 45 when the lock body 4 is completely engaged with the connected body 2. In the embodiment shown in FIGS. 3 a to 3 d, a knob 44 for operating the lock body 4 is formed. The knob 44 may have any shape as long as it can operate the lock body 4.

  As shown in FIGS. 2A and 2B, the outer peripheral portion of the lock body 4 (when the lock body 4 is inserted into the cavity portion 33 s) is formed on the inner peripheral surface of the hollow portion 33 s of the coupling body 3. A fitted part 31 into which the guided part 42 and the fitted part 41) are fitted is formed. Since the lock body 4 can be inserted into the cavity 33 s in which the fitted portion 31 is formed, the engaged portion 21 and the engaging portion 43 are engaged with each other in the lock body 4. It is possible to shift to an engaged state in which 31 and the fitting portion 41 are engaged, and an engaged state in which the engaged portion 21 and the engaging portion 43 are not engaged. That is, as shown in FIG. 9 or FIG. 10 to be described later, the lock body 4 is engaged with the engaged portion 21 and the engaging portion 43 while the engaged portion 31 and the engaging portion 41 are engaged. The state inserted until they are combined is the engaged state, from the state shown in FIGS. 7 and 8 and the state shown in FIGS. 7 and 8 until the engaged portion 21 and the engaging portion 43 are engaged. A state where the fitted portion 31 and the fitted portion 41 are fitable or fitted, and the engaged portion 21 and the engaged portion 43 are not engaged, such as the state up to the state. The disengaged state.

  In the embodiment shown in FIG. 1, FIG. 2A and FIG. 2B, the fitted portion 31 protrudes from the inner peripheral surface of the cavity portion 33 s of the coupling body 3 and is formed along the insertion direction of the lock body 4. The two protrusions 31a, 31b and the gap S formed between the two protrusions 31a, 31b are formed. The guided portion 42 and the fitting portion 41 formed on the outer peripheral side of the lock body 4 can be sequentially fitted to the fitted portion 31. In addition, the to-be-fitted part 31 by the side of the connection body 3, the fitting part 41 by the side of the lock body 4, and the to-be-guided part 42 can fit the connection body 3 and the lock body 4 mutually by fitting of unevenness etc. Thus, what is necessary is just to be comprised so that either one may become a convex part and the other becomes a recessed part among the connection body 3 and the lock body 4, and the shape in particular is not limited. Therefore, unlike the illustrated embodiment, when the fitted portion 31 is a groove formed perpendicular to the inner peripheral surface of the cavity portion 33s (a concave groove is formed on the inner peripheral surface of the cavity portion 33s), a lock is provided. The guided portion 42 of the body 4 may be a protruding portion that engages with the groove. In this case, the guide part 32 of the coupling body 3 through which the guided part 42 is guided is formed perpendicular to the fitted part 31 formed as a groove, and the protruding guided part 42 is a slidable groove. be able to. In the present specification, “fitting” between the fitting portion 41 and the fitted portion 31 refers to an operation in the insertion direction (vertical direction in FIGS. 5 and 7) of the lock body 4 into the hollow portion 33s. Sometimes, one of the fitting part 41 and the fitted part 31 is fitted into the other and guides the operation of the lock body 4 in the insertion direction. With such a configuration of the lock body 4 and the coupling body 3, the lock body 4 can be shifted between the engaged state and the disengaged state.

  Further, in the coupling mechanism 1 of the present invention, the lock body 4 can be shifted to the engagement avoidance state in which the lock body 4 cannot be shifted to the engagement state and can be shifted to the engagement release state. At the time of transition from the joint avoidance state to the engagement release state, the guided portion 42 of the lock body 4 is guided by the guide portion 32 of the coupling body 3, and at the time of transition from the engagement release state of the lock body 4 to the engagement state. Is configured such that the guided portion 42 of the lock body 4 is fitted to the fitted portion 31 of the connecting body 3. The engagement avoidance state cannot be shifted to the engagement state, that is, even if a force is applied in the insertion direction of the lock body 4 as shown in FIGS. 4 and 5, for example, the lock body 4 is inserted into the cavity 33s. The state that cannot move in the direction.

  Thus, the lock body 4 can shift to the engagement avoidance state in which the transition to the engagement state is impossible and the transition to the disengagement state is possible, and the transition from the engagement avoidance state to the engagement release state is possible. Sometimes, the guided portion 42 is guided by the guide portion 32, and the guided portion 42 (and the fitting portion 41) is fitted with the fitted portion 31 when the engagement state is shifted from the engaged state to the engaged state. By being configured, it is possible to prevent the locked body 4 from moving and locking the coupled body 2 when the coupled body 2 is not locked by the locking body 4, and to be coupled. When the connection body 2 needs to be locked, the lock body 4 and the connection body 3 can be fitted by a simple operation on the lock body 4. That is, for example, when the coupling mechanism 1 including the coupled body 2, the coupling body 3, and the lock body 4 is transported integrally before being assembled to an assembly target such as a vehicle, for example, the lock body 4. Even if a force is applied in a direction in which the lock body 4 is engaged with the coupled body 2 such as the insertion direction of the lock body 4, the lock body 4 cannot be shifted to the engaged state in the engagement avoidance state. There is no engagement with the connector 2. Therefore, the connected body 2 and the lock body 4 are not locked when it is not necessary to engage and lock the lock body 4 and the connected body 2 when the connecting mechanism 1 is transported. This eliminates the need for the operator to release the lock between the coupled body 2 and the lock body 4 before actually coupling the coupling mechanism 1 to an assembly target such as a vehicle, thereby improving the work efficiency. Once the coupling mechanism 1 is assembled to the assembly target, the engagement protrusion 36 and the engagement claw portion 45 described above are used so that the engagement state between the lock body 4 and the coupled body 2 is not released. In many cases, a means for preventing the release of the proper engagement is provided. In such a case, it is more difficult to remove the lock body 4 from the coupled body 2 and release the lock, and after the difficult lock release operation, further lock work must be performed. In the case of a coupling mechanism that can be shifted to, work efficiency deteriorates.

  The adjusting device 100 described in Patent Document 1 described above prevents locking to some extent by providing another member (slider 104 in FIG. 11) for applying a load with a spring so that it is difficult to shift to the engaged state. However, if a certain force greater than the load of the spring is applied to the lock body, the lock mechanism may be locked during transport. In the connecting mechanism 1 according to the present invention, even if a force is applied in a direction in which the lock body 4 is engaged with the connected body 2 in a state before assembly, such as during transport, the lock body 4 cannot be shifted to the engaged state. When the coupled body 2 is not required to be locked by the lock body 4, it is possible to prevent the coupled body 2 from being locked by the lock body 4 without using a separate member such as a slider.

  Furthermore, in the connection mechanism 1 of the present invention, the guided portion 42 of the lock body 4 is guided by the guide portion 32 of the connection body 3 during the transition from the engagement avoidance state to the engagement release state, and the engagement state is released from the engagement release state. At the time of transition to the combined state, the lock body 4 is locked from the locked state by the guided portion 42 and the fitting portion 41 of the lock body 4 being fitted to the fitted portion 31 of the coupling body 3. The operations up to can be performed easily. That is, unlike the fastening member described in Patent Document 2, it is not necessary to perform a fine and force-intensive operation such as moving the lock body after applying a force to the lock body.

  Further, the connection mechanism 1 of the present invention can prevent the lock when the lock 2 is unnecessary even if the connected body 2, the connection body 3, and the lock body 4 are all transported as one body. When it is necessary, it can be locked with a simple operation. Therefore, in order to prevent the lock, only the lock body is transported separately, and the lock body is lost, or during the assembly work, there is no need for complicated handling of taking out the lock body from another place and mounting it. Efficiency is improved.

  The transition from the engagement avoidance state to the engagement release state is not particularly limited as long as the guided portion 42 is guided by the guide portion 32 and relatively moves between the lock body 4 and the coupling body 3. However, in the present embodiment, the lock body 4 is configured to shift from the engagement avoidance state to the engagement release state by the rotation of the lock body 4. In other words, the shift from the engagement avoiding state to the disengaged state is configured such that the lock body 4 rotates in a plane perpendicular to the insertion direction of the lock body 4. As described above, when the lock body 4 shifts from the engagement avoidance state to the engagement release state due to the rotation of the lock body 4, it is possible to more reliably prevent the coupled body 2 from being locked. Moreover, the movement space of the lock body 4 can be saved, and the whole coupling mechanism 1 can be reduced in size.

  In order to shift from the engagement avoidance state to the engagement release state by the rotation of the lock body 4, in this embodiment, as shown in FIG. 2 (a), FIG. 3b, FIG. 33s has an inner circumferential surface of the cavity 33s (an inner circumference of a cross section of the cavity 33s cut along a plane perpendicular to the insertion direction of the lock body 4) formed at least partially in an arc shape. The outer peripheral surface (the outer periphery of the cross section of the lock body 4 cut by a plane perpendicular to the insertion direction of the lock body 4) is formed at least partially in an arc shape along the arc-shaped inner peripheral surface of the cavity 33s. ing. The arc-shaped portions of the inner peripheral surface of the cavity portion 33s and the outer peripheral surface of the lock body 4 have substantially the same curvature, and the lock body 4 can be smoothly rotated within the cavity portion 33s. ing.

  The guided portion 42 of the lock body 4 is formed on the outer peripheral side of the lock body 4 as a cutout portion 42a cut out along the rotational movement direction from the engagement avoidance state to the engagement release state. . And in order to guide the lock body 4, the connection body 3 is formed with a guide portion 32 having a size that fits into the cutout portion 42a. In the present embodiment, as shown in FIG. 2A, the guide portion 32 is formed on the inner peripheral surface of the cavity portion 33s from the upper edge on the side where the lock body 4 is inserted to the inside of the cavity portion 33s. Protrusively. Further, in the present embodiment, as shown in FIGS. 2A and 2B, the lower end of the lock body 4 is mounted in a state where the guide portion 32 is in the guided portion 42 in the engagement avoidance state. A placement portion 37 to be placed is provided. The mounting portion 37 is formed at a position slightly lower than the upper end edge of the cavity portion 33s, and the lock body 4 placed on the mounting portion 37 is so that the free end side of the lock body 4 slightly enters the cavity portion 33s. It has become. The mounting portion 37 is formed with a position holding projection 37p that engages with the lower end portion of the lock body 4 in order to hold the position of the lock body 4 in the engagement avoidance state. In the present embodiment, as shown in FIGS. 2A and 2B, the upper end surface 31 u of the fitted portion 31 shown as the protrusions 31 a and 31 b is the same surface as the placement portion 37. It is provided so as to be located inside, and smooth movement from the engagement avoidance state to the engagement release state.

  Further, the lock body 4 is configured not to be detached from the coupling body 3 by the guided portion 42 being guided by the guide portion 32. That is, when the guide portion 32 is in the guided portion 42, the lower end surface 32a of the guide portion 32 is not moved even if the lock body 4 moves in the direction in which it is detached (the direction indicated by the arrow in FIG. 6). The lock body 4 is prevented from being detached by coming into contact with the lower surface (or the engaging claw portion 45) of the cutout portion 42a. Therefore, since the lock body 4 does not come out of the connecting body 3 when the lock body 4 is operated, the operation of the lock body 4 when locking the connected body 2 can be made easier, and further, when the connecting mechanism 1 is transported. The lock body 4 can be prevented from being detached and lost.

  Next, the function of the coupling mechanism 1 of the present invention will be described with reference to FIGS. 4-8, illustration of the to-be-connected body 2 is abbreviate | omitted. Moreover, the state shown in FIGS. 4-10 is an example to the last, and the connection mechanism 1 of this invention is not limited to what is shown in FIGS.

  4 and 5 are views showing an engagement avoidance state of the coupling mechanism 1 of the present invention. As described above, in the engagement avoidance state shown in FIGS. 4 and 5, the transition to the engagement state is impossible and the transition to the disengagement state is possible. That is, in this engagement avoidance state, the lock body 4 cannot be shifted to the engagement state in which the lock body 4 is engaged with the coupled body 2, and the engaged portion 21 of the coupled body 2 is engaged with the lock body 4. The part 43 is not engaged and can be shifted to an engaged state where it can be shifted to the engaged state. Specifically, as shown in FIG. 4, the lower end of the engaging claw portion 45 and the lower end 42 b of the guided portion 42 are in contact with the mounting portion 37 of the connector 3. Moreover, the lower end 42b of the another guided part 42 is contact | abutted to the upper end surface 31u of the to-be-fitted part 31 of the connection body 3, and the movement to the insertion direction of the lock body 4 is controlled. Further, as shown in FIGS. 4, 5, and 6, the guide portion 32 of the coupling body 3 is in the notch 42 a of the guided portion 42 of the lock body 4, and the lock body 4 is And in FIG. 6, the movement to both the upper and lower sides is regulated. Further, the engagement claw portion 45 of the lock body 4 placed on the placement portion 37 engages with a position holding projection 37p (not shown in FIG. 4) on the placement portion 37, and FIG. 4, the clockwise rotation is restricted, and the stepped portion between the placement portion 37 and the upper end edge of the cavity portion 33 s is in contact with the lock body 4, and the counterclockwise rotation is restricted. Thereby, the lock body 4 is hold | maintained in the engagement avoidance state. Before the coupling mechanism 1 is assembled to a vehicle or the like, it can be held in this engagement-avoided state. When the coupled body 2 is not locked by the locking body 4 during transport or the like, the locked body 4 is It does not move in the direction in which it is locked to the coupling body 2 and can be locked.

  When the coupling mechanism 1 is assembled from the engagement avoidance state shown in FIGS. 4 to 6, the lock body 4 is first shifted to the engagement release state shown in FIGS. 7 and 8. From the engagement avoidance state to the engagement release state, the free end side of the lock body 4 partially enters the cavity 33s (in FIGS. 4 to 6, the guided portion 42 of the lock body 4 is within the cavity 33s. The fitting portion 41 does not enter the cavity portion 33s) and rotates in the cavity portion 33s. Therefore, the upper end side (the upper portion of the cavity portion 33s in FIG. 5) of the cavity portion 33s in which the free end side of the lock body 4 is partially included in the engagement avoidance state is formed so that the lock body 4 can rotate. In addition, the lower side than the upper end side of the cavity portion 33s is formed as a cavity along the outer shape of the lock body 4 so that the lock body 4 cannot rotate.

  In the present embodiment, the lock body 4 is shifted from the engagement avoiding state to the disengaged state by rotating within the hollow portion 33 s formed in a partially arc shape. Specifically, when the knob 44 of the lock body 4 is picked and the engaging claw portion 45 gets over the position holding projection 37p, the lock body 4 is rotated clockwise in FIG. At this time, the guided portion 42 of the lock body 4 is guided by the guide portion 32 of the coupling body 3, and the lock body 4 rotates smoothly. The outer peripheral portion of the lock body 4 is partially formed in an arc shape similarly to the hollow portion 33s, and rotates along the inner peripheral surface of the hollow portion 33s to move to the disengaged state. The side surface of the engaging claw portion 45 of the lock body 4 that partially enters is brought into contact with the inner periphery of the cavity portion 33s and stopped. In the disengaged state, as shown in FIG. 7 and FIG. 8, is the gap S between the two protrusions 31 a and 31 b constituting the fitted part 31 of the connector 3 substantially the same as the gap S? The guided portion 42 of the lock body 4 having a slightly small width is located. When the lock body 4 moves to this disengaged state, it can shift to the engaged state.

  When the lock body 4 is pushed (or dropped) into the cavity 33s from the disengaged state shown in FIGS. 7 and 8, the lock body 4 enters deeply into the cavity 33s as shown in FIG. It shifts to the engaged state, the engaged portion 21 of the connected body 2 and the engaging portion 43 of the lock body 4 are engaged, and the movement of the connected body 2 in the axial direction is restricted. From the disengaged state to the engaged state, the guided portion 42 and the fitting portion 41 of the lock body 4 are fitted in the gap S of the fitted portion 31 while sliding between the two protrusions 31a and 31b. Move. The state shown in FIG. 9 shows a state in which the engagement claw portion 45 of the lock body 4 is in contact with the tapered portion of the engagement protrusion 36 of the coupling body 3, and the lock body 4 is further moved from this state. When inserted into the cavity 33s, the engagement claw portion 45 of the lock body 4 is deformed inward, and when the engagement claw portion 45 is pushed down to the position of the lower end of the engagement projection 36, it is deformed inward. As shown in FIG. 10, the engaging claw portion 45 returns to the original state, and the upper end of the engaging claw portion 45 engages with the lower end of the engaging projection 36 to connect the lock body 4 to the connecting body 3. Can be fixed to.

  From the engagement avoidance state to this engagement state, the guided portion 42 of the lock body 4 is guided by the guide portion 32 of the connecting body 3 and moved, and the guided portion 42 of the lock body 4 is Since two movements of moving while being fitted to the fitted portion 31 are necessary, the possibility of being locked when the lock body 4 is not required to be locked can be further reduced.

  In the present embodiment, the lock body 4 is rotated on the spot to move the lock body 4 from the engagement avoidance state to the engagement state. Therefore, the lock body 4 is not displaced from the position on the cavity portion 33 s of the coupling body 3, and it is not necessary to slide the lock body 4 with respect to the cavity portion 33 s. Therefore, compared to the case where the lock body 4 is slid relative to the position of the cavity 33s (for example, when the lock body 4 is slid in the left-right direction in FIG. 4), the connecting body 3 is connected to the lock body 4. There is no need to provide a space for sliding and a guide portion for sliding the lock body 4. Thereby, the magnitude | size of the connection body 3 and the magnitude | size of the connection mechanism 1 whole can be made small, and prevention of the lock | rock of the lock body 4 and simple operation can be implement | achieved in space saving.

DESCRIPTION OF SYMBOLS 1 Connection mechanism 2 To-be-connected body 21 To-be-engaged part 22 Shaft part 23 Stopper 3 Connecting body 31 To-be-fitted part 31a, 31b Projection 31u Upper end surface of to-be-fitted part 32 Guide part 32a Lower end surface 33 to guide part 33s Cavity 33a, 33b Insertion hole 34 Attachment 35 Moving space 36 Engagement protrusion 37 Placement part 37p Position holding protrusion 4 Lock body 41 Fitting part 42 Guided part 42a Notch part 42b Lower end of guided part 43 Engagement Joint part 44 Pick part 45 Engagement claw part S Clearance

Claims (3)

A coupled body having an engaged portion;
A coupled body having a fitted part, a guide part, and an arrangement part in which the coupled body is movably disposed;
A locking body having a fitting portion and a guided portion, and having an engaging portion that engages with the engaged portion of the connected body arranged in the placement portion and locks the connected body; With
The lock body is engaged with the engaged portion and the engaging portion, and the engaged portion and the fitting portion are engaged, and the engaged portion and the engaged portion. A coupling mechanism capable of shifting to a disengaged state in which the part does not engage,
The lock body is capable of transitioning to an engagement avoiding state, incapable of transitioning to the engaged state and capable of transitioning to the disengaged state,
When the lock body transitions from the engagement avoidance state to the engagement release state, the guided portion is guided by the guide portion,
The coupling mechanism, wherein the guided portion is engaged with the fitted portion when the lock body is shifted from the engaged state to the engaged state. The connection mechanism according to claim 1, wherein the lock body shifts from the engagement avoidance state to the engagement release state by rotation of the lock body. 3. The coupling mechanism according to claim 1, wherein the lock body is prevented from being detached from the coupling body by the guided portion being guided by the guiding section.

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