Waterproof structure with rotary lock, hooking waterproof cord connector body, hooking waterproof plug, hooking waterproof panel receptacle, hooking waterproof flange inlet, waterproof cover, adapter for hooking waterproof panel receptacle, and adapter for hooking waterproof flange inlet

Abstract

To provide a waterproof structure with a rotary lock that can reduce its manufacturing cost and has high convenience.SOLUTION: A waterproof structure with a rotary lock 1 comprises housings 13, 23 that are attached to individually cover portions of hooking connector bodies 11, 21 other than connection ends and that can be fitted to each other. The housing 13 is attached with a seesaw type clip 16 that has its leading end directed toward the housing 23. The housing 23 is provided with a guide slope 25 that smoothly pushes up to open a leading end side 161 of the clip 16, and a clip receiver 26 that is adjacent to the guide slope 25. Rotational return of the hooking connector bodies 11, 21 does not occur unless the leading end side 161 of the clip 16 is not opened.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a waterproof structure with a rotating lock, a hook-shaped waterproof cord connector body, a hook-shaped waterproof plug, a hook-shaped waterproof panel outlet, a hook-shaped waterproof flange inlet, a waterproof cover, an adapter for a hook-shaped waterproof panel outlet, and an adapter for a hook-shaped waterproof flange inlet, which are attached to a pair of hook-shaped connector bodies for connecting coated electric wires such as AC power supply electric wires. Here, the "coated electric wire" is assumed to include, for example, an electric wire cable obtained by applying an insulating coating to a stranded electric wire, an electric wire cable, etc.

Background Art

[0002] As a hook-shaped and waterproof connector for connecting coated electric wires such as AC power supply electric wires, for example, a hook-shaped waterproof cord connector body, a hook-shaped waterproof plug, etc. conforming to JIS standards or US NEMA standards are known (see Patent Document 1, Non-Patent Document 1, etc.). For example, a user inserts the key-shaped plug blade of a hook-shaped waterproof plug held in the right hand into the blade receiving hole of a hook-shaped waterproof cord connector body held in the left hand, and rotates these hook-shaped waterproof cord connector body and hook-shaped waterproof plug clockwise by a predetermined angle, thereby locking the key-shaped plug blade to the blade receiver at the back of the blade receiving hole to prevent the plug from coming off, and obtaining waterproof performance (and dustproof performance). In addition, hook-shaped and waterproof connectors such as a hook-shaped waterproof panel outlet connectable to a hook-shaped waterproof plug and a hook-shaped waterproof flange inlet connectable to a hook-shaped waterproof cord connector body are also known. For these hook-shaped and waterproof connectors, rubber covers, metal plates, metal covers, etc. for achieving waterproofing (and dustproofing) are used.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Non-Patent Documents

[0004]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, conventional snap-type and waterproof connectors require a rubber cover, a metal plate, a metal cover, etc., so it is difficult to suppress the manufacturing cost compared to a snap-type connector that does not have waterproof performance (and dustproof performance). In addition, conventional snap-type and waterproof connectors generally allow the electrical connection to become unstable or require separate measures to prevent rotation return under severe usage conditions where the possibility of rotation return due to the twisting of the covered wire cannot be completely eliminated.

[0006] Therefore, the present invention has been made in view of such problems, and it is possible to suppress the manufacturing cost, and moreover, a waterproof structure with a highly convenient rotation lock, a highly compatible snap-type waterproof cord connector body, a snap-type waterproof plug, a snap-type waterproof panel outlet, a snap-type waterproof flange inlet, a highly convenient waterproof cover compatible therewith, an adapter for a snap-type waterproof panel outlet, and an adapter for a snap-type waterproof flange inlet are provided.

Means for Solving the Problems

[0007] To solve the above problems, the waterproof structure with a rotary lock according to the present invention is attached so as to individually cover portions other than the connection ends of a pair of hook-shaped connector bodies for connecting a covered electric wire, and includes a first housing and a second housing that can be fitted to each other. A seesaw-type clip with its tip side facing the side of the second housing is attached to the first housing. The second housing is provided with a guide slope that smoothly pushes up the tip side of the clip to open it when one of the pair of hook-shaped connector bodies is inserted into the other, and a clip receiver that is provided at a position adjacent to the guide slope in the circumferential direction and locks the tip side of the clip that has slid laterally along the guide slope when the pair of hook-shaped connector bodies are rotated for connection. The rotation of the pair of hook-shaped connector bodies is prevented from returning unless the tip side of the clip on the first housing is opened.

[0008] In the waterproof structure with a rotary lock according to the present invention for solving the above problems, a waterproof packing may be provided at the fitting portion between the first housing and the second housing.

[0009] In the waterproof structure with a rotary lock according to the present invention for solving the above problems, the first housing includes a pair of partition walls erected to support the rotation shaft of the clip, and through holes coaxially provided at the base end side of the clip on the pair of partition walls. A binding band may be bridged between the through holes of the pair of partition walls so as to prevent the base end side of the clip from being pushed down.

[0010] The hook-shaped waterproof cord connector body according to the present invention for solving the above problems is characterized by including a hook-shaped cord connector body as the hook-shaped connector body and the first housing of one waterproof structure with a rotary lock according to the present invention.

[0011] In order to solve the above problems, in the hook-shaped waterproof cord connector body according to the present invention, a grip for sandwiching a coated wire is provided on the anti-connection end side of the first housing, and a waterproof bushing may be arranged in a gap around the coated wire.

[0012] In order to solve the above problems, the hook-shaped waterproof plug according to the present invention is characterized by comprising a hook-shaped plug body as the hook-shaped connector body and the second housing of the waterproof structure with a single rotation lock according to the present invention.

[0013] In order to solve the above problems, in the hook-shaped waterproof plug according to the present invention, a grip for sandwiching a coated wire is provided on the anti-connection end side of the second housing, and a waterproof bushing may be arranged in a gap around the coated wire.

[0014] In order to solve the above problems, the hook-shaped waterproof panel socket according to the present invention is characterized by comprising a hook-shaped panel socket body as the hook-shaped connector body and the first housing of the waterproof structure with a single rotation lock according to the present invention.

[0015] In order to solve the above problems, in the hook-shaped waterproof panel socket according to the present invention, a hinge-type waterproof cover that can be fitted to the connection end side of the first housing is provided, and the hinge-type waterproof cover may be provided with a clip receiver that can be locked to the clip of the first housing.

[0016] In order to solve the above problems, in the hook-shaped waterproof panel socket according to the present invention, a bent-back handle is provided on the tip side of the clip, and the user can open the clip with the back of the thumb of the hand while holding the hook-shaped waterproof plug to be inserted into the connection end of the hook-shaped waterproof panel socket.

[0017] In order to solve the above problems, the hook-shaped waterproof flange inlet according to the present invention is characterized by comprising a hook-shaped flange inlet body as the hook-shaped connector body and the second housing of a waterproof structure with a rotation lock according to the present invention.

[0018] In the hook-shaped waterproof flange inlet according to the present invention in order to solve the above problems, a hinge-type waterproof cover that can be fitted to the connection end side of the second housing is provided, and the hinge-type waterproof cover may be provided with a clip that can be locked to the clip receiver of the second housing.

[0019] The waterproof cover according to the present invention in order to solve the above problems is a waterproof cover that can be fitted to the connection end side of the first housing of a hook-shaped waterproof cord connector body according to the present invention, and is characterized in that a clip receiver for locking the clip of the first housing is provided.

[0020] The waterproof cover according to the present invention in order to solve the above problems is a waterproof cover that can be fitted to the connection end side of the second housing of a hook-shaped waterproof plug according to the present invention, and is characterized in that a clip that can be locked to the clip receiver of the second housing is provided.

[0021] The adapter for a hook-shaped waterproof panel socket according to the present invention in order to solve the above problems is an adapter disposed between a hook-shaped waterproof panel socket according to the present invention and a mounting surface, and is characterized by having an opening that can be fitted to the outer periphery of the first housing. Here, the "mounting surface" refers to the surface to which the hook-shaped and waterproof connector is to be attached, and includes not only the wall surface but also a flat surface (panel) provided on a device or the like.

[0022] In order to solve the above problems, the adapter for the hook-shaped waterproof flange inlet according to the present invention is an adapter disposed between one hook-shaped waterproof flange inlet according to the present invention and the mounting surface, and is characterized in that it has an opening that can be fitted to the outer periphery of the second housing.

Effect of the Invention

[0023] The waterproof structure with a rotation lock according to the present invention includes a pair of housings mounted so as to individually cover portions other than the connection ends of a pair of hook-shaped connector bodies, and a rotation lock function is mounted on these pair of housings. Therefore, it is possible to add both waterproof performance (and dustproof performance) and a rotation lock function to the pair of hook-shaped connector bodies. Thus, since the existing hook-shaped connector body can be used as it is, the manufacturing cost of the hook-shaped and waterproof connector can be kept low. Moreover, when connecting a pair of hook-shaped connector bodies with housings, when the user holds one housing by hand and fits it to the other housing in an appropriate posture, the clip is opened while sliding on the surface of the guide slope. Therefore, the other key-shaped plug blade can be smoothly inserted into one blade receiving hole of the pair of hook-shaped connector bodies. After that, when the user relatively rotates the pair of housings in a predetermined direction, the tip side of the clip slides sideways on the guide slope and comes off the guide slope, so the clip closes and is locked with a "click" sound to the clip receiver adjacent to the guide slope. For this reason, the user can obtain the waterproof performance (and dustproof performance) and the rotation lock function due to the fitting of the pair of housings by the same operation as when connecting the hook-shaped connector bodies to each other. When disconnecting the connection between a pair of hook-shaped connector bodies, when the user presses down the proximal end side of the clip by hand and relatively rotates the pair of housings in the direction opposite to the predetermined direction, the distal end side of the clip rides on the guide slope. Therefore, by simply separating the pair of housings from each other, the distal end side of the clip slides down the surface of the guide slope, and the connection of the pair of hook-shaped connector bodies is smoothly disconnected. For this reason, the user can disconnect the connection of the pair of housings by simply adding the operation of pressing the clip to the same operations (rotation and pulling out) as when disconnecting the connection of the pair of hook-shaped connector bodies. As a result, the waterproof structure with rotational locking according to the present invention can suppress the manufacturing cost of the hook-shaped and waterproof connector, and has the effect of high convenience.

[0024] In addition, the hook-shaped waterproof cord connector body, hook-shaped waterproof plug, hook-shaped waterproof panel socket, and hook-shaped waterproof flange inlet according to the present invention have a structure compatible with the waterproof structure with rotational locking according to the present invention, so they have the effect of high compatibility. In addition, the waterproof cover, adapter for hook-shaped waterproof panel socket, and adapter for hook-shaped waterproof flange inlet according to the present invention also have a structure compatible with the waterproof structure with rotational locking according to the present invention, so they have the effect of high convenience.

Brief Description of the Drawings

[0025]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

MODE FOR CARRYING OUT THE INVENTION

[0026] 1. Overview of the Click Lock Series Hereinafter, a waterproof structure with a rotary lock according to the present embodiment, a hook-type / waterproof connector using the same (hook-type waterproof cord connector body, hook-type waterproof plug, hook-type waterproof panel outlet, hook-type waterproof flange inlet), and accessories (waterproof cover, adapter for hook-type waterproof panel outlet, adapter for hook-type waterproof flange inlet) compatible with these hook-type / waterproof connectors will be described in detail with reference to the drawings. The waterproof structure 1 with a rotary lock shown in FIGS. 1 to 3, the hook-shaped waterproof cord connector body 10 shown in FIGS. 1 to 3, the hook-shaped waterproof plug 20 shown in FIGS. 1 to 3, the hook-shaped waterproof panel socket 30 shown in FIG. 4, and the hook-shaped waterproof flange inlet 40 shown in FIG. 5 are a hook-shaped waterproof series (hereinafter referred to as the "click-lock series") used for high-capacity rated coated electric wires (such as electric wire cords and electric wire cables), such as 60A or 100A, in addition to ratings compliant with, for example, JIS standards or US NEMA standards. The waterproof cover 50 shown in FIG. 6, the waterproof cover 60 shown in FIG. 7, the adapter 70 for the hook-shaped waterproof panel socket shown in FIG. 8, and the adapter (not shown) for the hook-shaped waterproof flange inlet described later are accessories of the click-lock series. The blade-receiving hole type hook-shaped and waterproof connector (either the hook-shaped waterproof cord connector body 10 or the hook-shaped waterproof panel socket 30) belonging to the click-lock series and the plug blade type hook-shaped and waterproof connector (either the hook-shaped waterproof plug 20 or the hook-shaped waterproof flange inlet 40) are mutually connectable and are locked with a "click" sound by a rotary operation for connection (rotary lock). Also, the accessories of the click-lock series (the waterproof cover 50, the waterproof cover 60, the adapter 70 for the hook-shaped waterproof panel socket, and the adapter for the hook-shaped waterproof flange inlet described later) can be used with the hook-shaped and waterproof connectors of the blade-receiving hole type or the plug blade type belonging to the click-lock series. And each of the hook-shaped and waterproof connectors belonging to the click-lock series basically exhibits both waterproof performance (and dust-proof performance) satisfying, for example, an outer protection grade of IP65 and a rotary lock function by attaching a housing of a waterproof structure with a rotary lock to a hook-shaped connector body compliant with standards such as JIS standards or US NEMA standards. As the main material of this housing, it is possible to adopt a synthetic resin such as polycarbonate resin, and for its manufacture, resin molding mainly using a mold is common, but it is also possible to adopt, for example, a 3D printer. Therefore, the snap-lock type waterproof connectors belonging to the Snap Lock series do not require rubber covers, metal plates, metal covers, etc., and have the advantage of low manufacturing costs. Hereinafter, the snap-lock type waterproof connectors belonging to the Snap Lock series and the accessories of the Snap Lock series will be described in detail.

[0027] 1-1. Waterproof Structure with Rotating Lock Hereinafter, as an example of the waterproof structure with a rotating lock according to the Snap Lock series of the present embodiment, a waterproof mechanism with a rotating lock attached to the snap-type cord connector body main body and the snap-type plug main body will be described. Note that the waterproof mechanisms with rotating locks attached to other snap-type connector bodies described later also basically have the same functions. FIG. 1 is a perspective view of a snap-type waterproof cord connector body and a snap-type waterproof plug having a waterproof structure with a rotating lock according to the present embodiment, FIG. 2 is a plan view of the snap-type waterproof cord connector body and the snap-type waterproof plug, and FIG. 3 is a schematic cross-sectional view of the snap-type waterproof cord connector body and the snap-type waterproof plug. As shown in FIGS. 1, 2, and 3, the waterproof structure 1 with a rotating lock of the present embodiment is attached so as to individually cover the portions other than the connection ends of the snap-type cord connector body main body 11 and the snap-type plug main body 21, and includes a first housing 13 and a second housing 23 that can be fitted to each other. The materials of these first housing 13 and second housing 23 are synthetic resins such as polycarbonate resin, for example. The first housing 13 includes a flange 14 made of the same material joined, for example, by adhesion or welding near its connection end, and a seesaw-type clip 16 attached to the flange 14. The seesaw-type clip 16 includes a returnable tip side 161 that can be locked to a clip receiver 25 (described later), a base end side 162 as an operation lever, a rotation shaft 164 provided between the tip side 161 and the base end side 162, a pair of partition walls 17, 17 that are erected so as to sandwich the base end side 162 of the clip 16 and support the rotation shaft 164 pivotally, and a torsion spring 163 wound around the rotation shaft 164. The material of the clip 16 is a synthetic resin such as polycarbonate resin, for example, and the materials of the rotation shaft 164 and the torsion spring 163 are metals such as stainless steel, for example. The clip 16 of the first housing 13 is attached to the outer periphery of the flange 14 in a posture such that the tip side 161 faces the side of the second housing 23, and the circumferential width of the base end side 162 of the clip 16 is set to a sufficient size to be easily pressed by the user's thumb. The second housing 23 includes a flange 24 made of the same material joined, for example, by adhesion or welding near its connection end, a guide slope 25 provided at a predetermined position on the outer periphery of the flange 24, a concave clip receiver 26 provided at a position adjacent to the guide slope 25 in the circumferential direction on the outer periphery of the flange 24, and a waterproof packing 241, such as a valve film structure, arranged for sealing at the fitting portion with the first housing 13. The material of the waterproof packing 241 is, for example, chloroprene rubber, soft elastomer, etc. Note that the flange 24 provided on the second housing 23 has a shape that can be fitted to the flange 14 provided on the first housing 13. In addition, triangular marks 161M and 25M, for example, are attached to the tip side 161 of the clip 16 and the guide slope 25, respectively, to facilitate alignment of their positions. Further, on the surface of the waterproof packing 241 arranged on the side of the second housing 23, a fluororesin coating or the like may be applied to improve slidability in view of the fact that the rotational operation during connection is repeated.

[0028] 1-2. Operation of the Waterproof Structure with Rotating Lock The operation of the waterproof structure 1 with a rotary lock according to the click lock series of this embodiment will be described below. For example, the user holds the first housing 13 with the right hand and holds the first housing 24, and brings the flange 14 of the first housing 13 and the flange 24 of the second housing 23 closer to each other and fits them in a posture such that the alignment marks 161M and 25M (Fig. 2) face each other, so that the key-shaped plug blades 22, 22, 22 of the hook-shaped plug body 21 can be inserted into the blade receiving holes 12, 12, 12 of the hook-shaped cord connector body 11. At the time of this insertion, the guide slope 25 of the second housing 23 smoothly pushes up and opens the tip side 161 of the clip 16 of the first housing 13, so that the clip 16 does not become an obstacle to the insertion, and the insertion is performed smoothly. After that, when the user relatively rotates the first housing 13 and the second housing 23 clockwise (in the direction of tightening a right-handed screw) for connection, the key-shaped plug blades 22, 22, 22 are locked to the blade receivers provided at the depths of the blade receiving holes 12, 12, 12. At the time of this rotation, the tip side 161 of the clip 16 of the first housing 13 slides laterally along the guide slope 25 of the second housing 23 and then disengages from the guide slope 25, so that the tip side 161 is dropped into the clip receiver 26 adjacent to the guide slope 25 and is locked with a "click" sound. As a result, the hook-shaped plug body 21 and the hook-shaped cord connector body 11 are rotationally locked. When rotationally locked in this way, as long as the tip side 161 of the clip 16 of the first housing 13 is not opened, the locking of the tip side 161 to the clip receiver 26 is not released, so that the rotation of the hook-shaped cord connector body 11 and the hook-shaped plug body 21 does not return. As a result, the rotational lock is maintained. When disconnecting the hook-shaped plug body 21 and the hook-shaped cord connector body 11, while the user presses down the proximal end side 162 of the clip 16 with the belly of the right thumb, the first housing 13 and the second housing 14 are relatively rotated counterclockwise (in the direction of loosening a right-handed screw). Due to this rotation, the distal end side 161 of the clip 16 on the first housing 13 rides on the guide slope 25 of the second housing 23. After that, even if the user does not press down the proximal end side 162 of the clip 16 with a finger, just by separating the first housing 13 and the second housing 23 from each other, the distal end side 161 of the clip 16 slides down the surface of the guide slope 25, so that the connection of the hook-shaped plug body 21 to the hook-shaped cord connector body 11 is smoothly released.

[0029] 1-3. Double Lock Structure Hereinafter, the double-lock structure of the rotation-lock waterproof structure of the present embodiment will be described. As shown in FIG. 2, in the rotation-lock waterproof structure 1 of the present embodiment, through holes 171, 171 are coaxially provided in a pair of partition walls 17, 17, and when a binding band is bridged between these pair of through holes 171, 171, the pressing down of the proximal end side 162 of the clip 16 is blocked. The user can, for example, pass a strap of a binding band having a size of 2.5 mm × 1 mm through the through holes 171, 171, then pass the tail through the head of the binding band, and pull the tail portion to tighten the band and fix the binding band. After that, unless the binding band is cut, the binding band bridged between the through holes 171, 171 does not loosen, so that the pressing down of the proximal end side 162 of the clip 16 is blocked. As a result, the rotation lock of the rotation-lock waterproof structure 1 is double-locked.

[0030] 1-4. Hook-Type Waterproof Cable Connector Body Hereinafter, with reference to FIGS. 1 to 3, the structure unique to the hook-shaped waterproof cord connector body 10 belonging to the click-lock series of the present embodiment will be described. The hook-shaped waterproof cord connector body 10 according to this embodiment includes a hook-shaped cord connector body main body 11 as shown in FIG. 3 and the first housing 13 described above. A plurality of screw receivers 131 are provided in a rib shape coaxially with a plurality of screw receivers provided in advance on the hook-shaped cord connector body main body 11 near the anti-connection end of the inner wall of the first housing 13. After inserting the hook-shaped cord connector body main body 11 into the first housing 13, when mounting screws 132 (FIG. 3) are inserted into and tightened on each of these screw receivers, the hook-shaped cord connector body main body 11 can be mounted on the first housing 13. Further, on the anti-connection end side of the first housing 13, a pair of grips 19, 19 for sandwiching a covered electric wire (not shown) extending from the anti-connection end side of the hook-shaped cord connector body main body 11 are attached. The pair of grips 19, 19 are provided with screw receivers 193, 193 for fixing the pair of grips 19, 19 to each other. When grip screws 192, 192 are inserted into and tightened on the screw receivers 193, 193, the covered electric wire can be firmly sandwiched by the pair of grips 19, 19. In the first housing 13, in the vicinity of the attachment locations of the pair of grips 19, 19, a waterproof bushing 191 having, for example, a valve film structure is arranged for sealing, filling the gap around the covered electric wire to prevent water ingress. The material of the waterproof bushing 191 is, for example, chloroprene rubber, soft elastomer, etc.

[0031] 1-5. Hook-Type Waterproof Plug Hereinafter, with reference to FIGS. 1 to 3, the structure unique to the hook-shaped waterproof plug 20 belonging to the click-lock series of this embodiment will be described. The hook-shaped waterproof plug 20 according to this embodiment includes a hook-shaped plug body 21 as shown in FIG. 3 and the second housing 23 described above. Near the anti-connection end of the inner wall of the second housing 23, a plurality of screw receivers 231 are provided in a rib shape coaxially with a plurality of screw receivers previously provided on the hook-shaped plug body 21. After inserting the hook-shaped plug body 21 into the second housing 23, when mounting screws 232 (Fig. 3) are inserted into and tightened on each of these screw receivers, the hook-shaped plug body 21 can be mounted on the second housing 23. Also, on the anti-connection end side of the second housing 23, a pair of grips 29, 29 for sandwiching a covered electric wire (not shown) extending from the anti-connection end side of the hook-shaped plug body 21 are mounted. The pair of grips 29, 29 are provided with screw receivers 293, 293 for fixing the pair of grips 29, 29 to each other. When grip screws 292, 292 are inserted into and tightened on the screw receivers 293, 293, the covered electric wire can be firmly sandwiched by the pair of grips 29, 29. Note that, in the second housing 23, in the vicinity of the mounting locations of the pair of grips 29, 29, a waterproof bushing 291 having, for example, a valve membrane structure is arranged for sealing, filling the gap around the covered electric wire to prevent water ingress. The material of the waterproof bushing 291 is chloroprene rubber, soft elastomer, or the like.

[0032] 1-6. Hook-Type Waterproof Panel Outlet Hereinafter, with reference to Fig. 4, the structure of the hook-shaped waterproof panel socket 30 belonging to the click-lock series of the present embodiment will be described. Fig. 4 is a perspective view of the hook-shaped waterproof panel socket according to the present embodiment. As shown in Fig. 4, the hook-shaped waterproof panel socket 30 according to the present embodiment includes a hook-shaped panel socket body 31 and a first housing 33 mounted so as to cover the portions other than the connection end of the hook-shaped panel socket body 31. The material of this first housing 33 is a synthetic resin such as polycarbonate resin, for example. The first housing 33 has the same function as the aforementioned first housing 13, and includes a flange 34 made of the same material joined, for example, by adhesion or welding near the connection end, and a clip 36 provided on the upper side of the flange 34. This clip 36 has the same function as the aforementioned clip 16. Therefore, when the hook-type waterproof panel socket 30 according to this embodiment is combined with the aforementioned hook-type waterproof plug 20, it can exhibit the same function as the aforementioned waterproof structure 1 with a rotary lock. In addition, as a structure unique to the panel socket, the first housing 33 includes a substantially square base 341 in plan view provided around the first housing 33, a hinge 391 attached to the lower side of the flange 34, and a hinge 391 attached to the flange 34 via the hinge 391 and a round lid-shaped hinge-type waterproof cover 39 made of, for example, polycarbonate resin that can be fitted to the connection end side of the first housing 33, and a waterproof packing 393 having a valve film structure, for example, arranged at the fitting portion of the hinge-type waterproof cover 39 with the first housing 33 for sealing. The material of the waterproof packing 393 is, for example, chloroprene rubber, soft elastomer, etc. A clip receiver 392 capable of locking the clip 36 of the first housing 33 is provided on the non-hinge side of the hinge-type waterproof cover 39. Therefore, when the hinge-type waterproof cover 39 is closed, that is, when covering the connection end of the hook-type waterproof panel socket 30, the tip side 361 of the clip 36 is locked to this clip receiver 392. Also, when the user presses down on the base end side of the clip 36, the hinge-type waterproof cover 39 is opened (for example, unfolded 180°). This hinge-type waterproof cover 39 is a "freely movable lid" without an angle-maintaining mechanism, but it is desirable to have a structure (protrusion) that reduces the play width at the fully open position of the cover. Note that mounting holes 342 for laying (fixing) are provided on the surface side of the base 341, and a base packing 343 made of a material such as chloroprene rubber or soft elastomer is provided on the mounting surface side, whereby waterproof performance (and dust resistance performance) can be obtained. In addition, by making the material of the hinge-type waterproof cover 39 transparent or translucent to impart light transmissibility to the cover, it is convenient because the type of the connection end (distinction between the blade receiving hole type / plug blade type. Here, it is the blade receiving hole type.) can be confirmed while the cover is on. Also, in the hook-type waterproof panel socket 30 according to the present embodiment, a bent handle is provided on the tip side 361 of the clip 36. This bent handle has a shape that is bent upward in front when looking at the hook-type waterproof panel socket 30 toward the mounting surface side. Therefore, for example, when the user grips the hook-type waterproof plug 20 to be inserted into the connection end of the hook-type waterproof panel socket 30 by hand, the clip 36 can be opened with the back of the thumb of the same hand while gripping it. That is, the user can open and close the hinge-type waterproof cover 39 with one hand gripping the hook-type waterproof plug 20, and can also connect (snap-lock) the hook-type waterproof plug 20 to the hook-type waterproof panel socket 30 with one hand gripping the hook-type waterproof plug 20.

[0033] 1-7. Hook-Type Waterproof Flange Inlet Hereinafter, with reference to FIG. 5, the structure of the hook-type waterproof flange inlet 40 belonging to the snap-lock series of the present embodiment will be described. FIG. 5 is a perspective view of the hook-type waterproof flange inlet according to the present embodiment. As shown in FIG. 5, the hook-type waterproof flange inlet 40 according to the present embodiment includes a hook-type flange inlet body 41 and a second housing 43 attached so as to cover the portion other than the connection end of the hook-type flange inlet body 41. The material of this second housing 43 is, for example, a synthetic resin such as polycarbonate resin. The second housing 43 has the same functions as the aforementioned second housing 23, and includes a flange 44 made of the same material joined, for example, by adhesion or welding near the connection end, a guide slope 45 provided on the upper side of the flange 44, and a clip receiver 46 provided adjacent to the guide slope 45. This guide slope 45 and clip receiver 46 have the same functions as the aforementioned guide slope 25 and clip receiver 26. Therefore, when the hook-type waterproof flange inlet 40 according to the present embodiment is combined with the aforementioned hook-type waterproof cord connector body 10, it can exhibit the same functions as the aforementioned waterproof structure 1 with a rotary lock. In addition, the second housing 43 has, as a structure specific to the flange inlet, a substantially square base 441 in plan view provided around the second housing 43, a hinge 491 attached to the lower side of the flange 44, and a hinge-type waterproof cover 49, for example, made of polycarbonate resin, which is attached to the flange 44 via the hinge 491 and can be fitted to the connection end side of the second housing 43. A clip 492 that can be locked to the clip receiver 46 of the second housing 43 is provided on the side opposite to the hinge of the hinge-type waterproof cover 49. Therefore, when the hinge-type waterproof cover 49 is closed, that is, when covering the connection end of the hook-type waterproof flange inlet 40, the tip side of this clip 492 is locked to the clip receiver 46. Also, when the user presses the base end side of the clip 492, the hinge-type waterproof cover 49 is opened (for example, unfolded 180°). This hinge-type waterproof cover 49 is a "freely movable lid" without an angle maintaining mechanism, but it is desirable to have a structure (protrusion) that reduces the play width at the fully open position of the cover. Note that mounting holes 442 for laying (fixing) are provided on the surface side of the base 441, and a base packing 443 made of a material such as chloroprene rubber or soft elastomer is provided on the mounting surface side, whereby waterproof performance (and dustproof performance) can be obtained. In addition, by making the material of the hinge-type waterproof cover 49 transparent or translucent to impart light transmissibility to the cover, it is convenient because the type of the connection end (differentiating between the socket hole type / the plug blade type. Here, it is the plug blade type.) can be confirmed while the cover is on.

[0034] 1-8. Waterproof Cover for Hook-Type Waterproof Cable Connector Body Hereinafter, with reference to FIG. 6, the structure of the waterproof cover 50 for the hook-type waterproof cord connector body belonging to the click-lock series of the present embodiment will be described. FIG. 6 is an explanatory diagram for explaining the waterproof cover for the hook-type waterproof cord connector body according to the present embodiment. As shown in FIG. 6, the waterproof cover 50 for the hook-type waterproof cord connector body according to the present embodiment is, for example, a round lid-shaped waterproof cover made of polycarbonate resin that can be fitted to the connection end side of the first housing 13 of the hook-type waterproof cord connector body 10, and includes a clip receiver 56 that can be locked to the tip side 161 of the clip 16 of the flange 14, and a waterproof packing 59 having, for example, a valve film structure disposed at the fitting portion with the flange 14 for sealing. The material of the waterproof packing 59 is, for example, chloroprene rubber, soft elastomer, or the like. At the top of this waterproof cover 50, a strap 57 made of, for example, nylon resin with a loop 571 at the tip side is attached by a stopper 58. In use, the loop 571 of this strap 57 is locked around the first housing 13 of the hook-type waterproof cord connector body 10. Therefore, the waterproof cover 50 can not only impart waterproof performance (and dust resistance performance) to the hook-type waterproof cord connector body 10 when not in use, but also open or close the connection end side of the hook-type waterproof cord connector body 10 by using the clip 16 of the hook-type waterproof cord connector body 10, which is efficient. In addition, by making the material of the waterproof cover 50 transparent or translucent to impart light transmissibility to the cover, it is convenient because the type of the connection end (differentiating between the socket hole type / the plug blade type. Here, it is the socket hole type.) can be confirmed while the cover is on.

[0035] 1-9. Waterproof Cover for Hook-Type Waterproof Plug Hereinafter, with reference to FIG. 7, the structure of the waterproof cover 60 for the hook-shaped waterproof plug belonging to the click lock series of the present embodiment will be described. FIG. 7 is an explanatory diagram for explaining the waterproof cover for the hook-shaped waterproof plug according to the present embodiment. As shown in FIG. 7, the waterproof cover 60 for the hook-shaped waterproof plug according to the present embodiment is, for example, a round lid-shaped waterproof cover made of polycarbonate resin that can be fitted to the connection end side of the second housing 23 of the hook-shaped waterproof plug 20, and includes a clip 66 that can be locked to the clip receiver 26 of the flange 24. At the top of this waterproof cover 60, a strap 67 made of, for example, nylon resin with a loop 671 at the tip end side is attached by a stopper 68. During use, the loop 671 of this strap 67 is locked around the second housing 23 of the hook-shaped waterproof plug 20. Therefore, the waterproof cover 60 can not only impart waterproof performance (and dust resistance performance) to the hook-shaped waterproof plug 20 when not in use, but also open or close the connection end side of the hook-shaped waterproof plug 20 by using the clip receiver 26 of the hook-shaped waterproof plug 20, which is efficient. In addition, if the material of the waterproof cover 60 is made transparent or translucent to impart light transmissivity to the cover, it is convenient because the type of the connection end (differentiating between the blade receiving hole type / plug blade type. Here, it is the plug blade type.) can be confirmed while the cover is on.

[0036] 1-10. Adapter for Hook-Type Waterproof Panel Outlet Hereinafter, with reference to FIG. 8, the structure of the adapter 70 for the hook-shaped waterproof power strip belonging to the click lock series of the present embodiment will be described. FIG. 8 is an explanatory diagram for explaining an adapter for a hook-type waterproof panel socket. As shown in FIG. 8, the adapter 70 for a hook-type waterproof panel socket according to the present embodiment is a pedestal (mounting auxiliary tool) disposed between the above-described hook-type waterproof panel socket 30 and the mounting surface side, and has a circular opening 71 that can be fitted to the outer periphery of the first housing 33 of the hook-type waterproof panel socket 30, and a rectangular recess 72 in plan view that can be fitted to the base 34 of the hook-type waterproof panel socket 30. The material of the adapter 70 for a hook-type waterproof panel socket is a synthetic resin such as polycarbonate resin, for example. This adapter 70 for a hook-type waterproof panel socket is an optional component for enabling the use of the hook-type waterproof panel socket 30 according to the present embodiment while utilizing an existing waterproof plate (anti-jet flow) laid on the mounting surface side. When replacing with the hook-type waterproof panel socket 30, after removing the embedded socket already laid, the adapter 70 for a hook-type waterproof panel socket is fixed by screwing through the mounting holes 73 using the socket box (for example, mounting hole pitch 48 × 83.5 mm) stored in the mounting surface, and the hook-type waterproof panel socket 30 is screwed to the hook-type waterproof panel socket mounting screw receiver 74 on this adapter 70 for a hook-type waterproof panel socket. Note that a base packing 75 made of a material such as chloroprene rubber or soft elastomer is provided on the mounting surface side of this adapter 70 for a hook-type waterproof panel socket, whereby it is possible to obtain waterproof performance (and dust resistance performance). Also, here, the adapter 70 for a hook-type waterproof panel socket that is compatible with the hook-type waterproof panel socket 30 has been described, but an adapter for a hook-type waterproof flange inlet that is compatible with the hook-type waterproof flange inlet 40 may be similarly realized. This adapter for a hook-type waterproof flange inlet is an adapter disposed between the hook-type waterproof flange inlet 40 and the mounting surface, and has an opening that can be fitted to the outer periphery of the second housing 43 of the hook-type waterproof flange inlet 40.

[0037] 2. Effects of the Embodiment The effects of the click lock series of the present embodiment will be described below. Here, as a pair of hook-shaped and waterproof connectors, a combination of a hook-shaped waterproof cord connector body 10 and a hook-shaped waterproof plug 20 will be taken as an example, but the same effects can be obtained for other combinations. The waterproof structure 1 with a rotary lock of the click lock series of the present embodiment includes a pair of housings 13 and 23, and since a rotary lock function is mounted on the pair of housings 13 and 23, it is possible to add both waterproof performance (and dustproof performance) and a rotary lock function to the hook-shaped cord connector body main body 11 and the hook-shaped plug main body 21. Therefore, since the existing hook-shaped cord connector body main body 11 and the hook-shaped plug main body 21 can be used as they are, the manufacturing costs of the hook-shaped waterproof cord connector body 10 and the hook-shaped waterproof plug 20 can be kept low. Moreover, when connecting the hook-shaped waterproof cord connector body 10 and the hook-shaped waterproof plug 20, when the user holds one housing 13 by hand and fits it into the other housing 23 in an appropriate posture, the clip 16 is opened while sliding on the surface of the guide slope 25, so that the key-shaped plug blade 22 of the hook-shaped plug main body 21 can be smoothly inserted into the blade receiving hole 12 of the hook-shaped cord connector body main body 11. After that, when the user rotates the pair of housings 13 and 23 clockwise, the tip side 161 of the clip 16 slides horizontally on the guide slope 25 and comes off the guide slope 25, so that the clip 16 closes and is locked with a "click" sound to the clip receiver 26 adjacent to the guide slope 25. For this reason, the user can obtain, by the same operation as when connecting the hook-shaped cord connector body main body 11 and the hook-shaped plug main body 21, the waterproof performance (and dustproof performance) due to the fitting of the pair of housings 13 and 23 and the function of preventing the rotation return of the hook-shaped cord connector body main body 11 and the hook-shaped plug main body 21 (rotary lock function). When disconnecting the hook-shaped cord connector body 11 and the hook-shaped plug body 21, when the user presses down the proximal end side 162 of the clip 16 by hand and rotates the pair of housings 13, 23 counterclockwise, the distal end side 161 of the clip 16 rides on the guide slope 25. Therefore, just by separating the pair of housings 13, 23 from each other, the distal end side 161 of the clip 16 slides down the surface of the guide slope 25, and the connection is smoothly released. For this reason, the user can release the connection by simply adding the operation of pressing down the clip 16 to the same operations (rotation and pulling out) as when disconnecting the hook-shaped cord connector body 11 and the hook-shaped plug body 21. As a result, the snap lock series of rotation-lock waterproof structures 1 according to the present embodiment can suppress the manufacturing costs of the hook-shaped waterproof cord connector body 10 and the hook-shaped waterproof plug 20, and moreover, has high convenience.

[0038] In addition, the hook-shaped waterproof cord connector body 10, the hook-shaped waterproof plug 20, the hook-shaped waterproof panel socket 30, and the hook-shaped waterproof flange inlet 40 belonging to the snap lock series of the present embodiment all have structures adapted to the rotation-lock waterproof structure 1 of the snap lock series, so they have high compatibility. In addition, the waterproof covers 50, 60, the adapter 70 for the hook-shaped waterproof panel socket, and the adapter (not shown) for the hook-shaped waterproof flange inlet, which are accessories of the snap lock series, all have structures adapted to the rotation-lock waterproof structure 1 of the snap lock series, so they have high convenience.

[0039] 3. Variations 3-1. Regarding the Placement Location of the Waterproof Packing In the above-described embodiment, the placement location of the waterproof packing is on the side of the plug blade type hook-shaped and waterproof connector and on the side of the waterproof cover of the blade receiving hole type hook-shaped and waterproof connector. However, it may also be on the side of the blade receiving hole type hook-shaped and waterproof connector and on the side of the waterproof cover of the plug blade type hook-shaped and waterproof connector.

[0040] 3-2. Regarding the Reversed Structure In the above-described embodiments or modifications, the location where the clip is provided is on the side of the blade-receiving hole type hook-shaped and waterproof connector and on the side of the waterproof cover of the plug blade type hook-shaped and waterproof connector, and the location where the clip receiver (and the guide slope) is provided is on the side of the plug blade type hook-shaped and waterproof connector and on the side of the waterproof cover of the blade-receiving hole type hook-shaped and waterproof connector. However, the location where the clip is provided and the location where the clip receiver (and the guide slope) is provided may be reversed. However, as a result of the trial production conducted by the inventors of the present application, it has been found that there is an advantage that the connector size can be reduced when not reversed (as shown in FIGS. 1 to 8).

[0041] 3-3. Regarding the Fixing Method of the Hook-Type Connector Body to the Housing In the above-described embodiments or modifications, the hook-shaped connector body and the housing are fixed by the screw receiver provided on the inner wall of the housing, the screw receiver provided in advance on the hook-shaped connector body, and the screw. However, other fixing methods may be adopted. For example, another method such as providing a locking portion on the inner wall of the housing that can be locked to the shape around the hook-shaped connector body may be adopted. Further, in the above-described embodiments or modifications, it is preferable that the inner wall of the housing is set to a shape such that the hook-shaped connector body cannot be inserted in an inappropriate posture so that the rotational position of the hook-shaped connector body mounted inside the housing is always appropriate.

[0042] 3-4. Others In addition, any of the above-described embodiments or any of the modifications can be variously modified without departing from the spirit of the present invention.

Explanation of Reference Numerals

[0043] 1 Waterproof structure with rotation lock 10 Hook-shaped waterproof cord connector body 11 Hook-shaped cord connector body main body 12, 12, 12 Blade receiving holes 13 First housing 131 Screw receiver 132 Mounting screw 14 Flange 16 clips 161 tip side 161M mark for alignment 162 base end side 163 torsion spring 164 rotation shaft 17, 17 partition wall 171, 171 through hole 19, 19 grip 191 waterproof bushing 192, 192 grip screw 193 screw receiver 20 hook-shaped waterproof plug 21 hook-shaped plug body 22 key-shaped plug blade 23 second housing 231 screw receiver 232 mounting screw 24 flange 241 waterproof packing 25 guide slope 25M mark for alignment 26 clip receiver 29, 29 grip 291 waterproof bushing 292, 292 grip screw 293 screw receiver 30 hook-shaped waterproof panel socket 31 hook-shaped panel socket body 32, 32, 32 blade receiving hole 33 first housing 34 flange 341 base 342 mounting hole 343 base packing 36 clip 361 tip side with a bent-back handle 362 base end side 39 hinge-type waterproof cover 391 hinge 392 clip receiver 393 waterproof packing 40 Hook-type waterproof flange inlet 41 Hook-type flange inlet body 42,42,42 Key-shaped plug blade 43 Second housing 431 Waterproof packing 44 Flange 441 Base 442 Mounting hole 443 Base packing 45 Guide slope 46 Clip receiver 49 Hinge-type waterproof cover 491 Hinge 492 Clip 50 Hook-type waterproof cover for waterproof cord connector body 56 Clip receiver 57 Strap 571 Loop 58 Stopper 59 Waterproof packing 60 Hook-type waterproof cover for waterproof plug 66 Clip 67 Strap 671 Loop 68 Stopper 70 Hook-type waterproof adapter for panel socket 71 Opening 72 Recess 73 Mounting hole 74 Thread receiver for mounting hook-type waterproof panel socket 75 Base packing

Claims

1. It is attached so as to individually cover the portions other than the connection ends of a pair of hook-shaped connector bodies for connecting covered electric wires, and includes a first housing and a second housing that can be fitted to each other. In the first housing, a seesaw-type clip with its tip side facing the second housing is attached. In the second housing, a guide slope for smoothly pushing up the tip side of the clip to open it when one of the pair of hook-shaped connector bodies is inserted into the other, and a clip receiver provided at a position adjacent to the guide slope in the circumferential direction, for locking the tip side of the clip that has slid laterally along the guide slope when the pair of hook-shaped connector bodies are rotated for connection, are provided. Rotation of the pair of hook-shaped connector bodies back is prevented unless the tip side of the clip in the first housing is opened. A waterproof structure with rotation lock, characterized by the above.

2. In the waterproof structure with rotation lock according to Claim 1, it includes a waterproof packing disposed at the fitting portion between the first housing and the second housing. A waterproof structure with rotation lock, characterized by the above.

3. In the waterproof structure with rotation lock according to Claim 1, the first housing includes a pair of partition walls erected to support the rotation shaft of the clip, and through holes coaxially provided at the base end side of the clip between the pair of partition walls. When a binding band is bridged between the through holes of the pair of partition walls, depression of the base end side of the clip is prevented. A waterproof structure with rotation lock, characterized by the above.

4. A hook-shaped cord connector body as the hook-shaped connector body according to Claim 1, and the first housing of the waterproof structure with rotation lock according to Claim 1 A hook-shaped waterproof cord connector body, characterized by comprising the above.

5. In the hook-shaped waterproof cord connector body according to Claim 4, a grip for clamping a covered electric wire is provided on the non-connection end side of the first housing, and a waterproof bushing is disposed in the gap around the covered electric wire. A hook-shaped waterproof cord connector body, characterized by the above.

6. A hook-shaped plug body as the hook-shaped connector body according to Claim 1, and the second housing of the waterproof structure with rotation lock according to Claim 1 A hook-shaped waterproof plug, characterized by comprising the above.

7. In the hook-type waterproof plug according to claim 6, a grip for sandwiching a covered electric wire is provided on the opposite connection end side of the second housing, and a waterproof bushing is disposed in a gap around the covered electric wire, the hook-type waterproof plug being characterized by this.

8. a hook-type panel socket body as the hook-type connector body according to claim 1, and the first housing having a waterproof structure with a rotary lock according to claim 1 are provided characterizing the hook-type waterproof panel socket.

9. In the hook-type waterproof panel socket according to claim 8, a hinge-type waterproof cover that can be fitted to the connection end side of the first housing is provided, and a clip receiver that can be locked to the clip of the first housing is provided on the hinge-type waterproof cover characterizing the hook-type waterproof panel socket.

10. In the hook-type waterproof panel socket according to claim 9, a bent-back handle is provided on the tip side of the clip, and a user can open the clip with the back of the thumb of the hand while holding the hook-type waterproof plug to be inserted into the connection end of the hook-type waterproof panel socket by hand characterizing the hook-type waterproof panel socket.

11. a hook-type flange inlet body as the hook-type connector body according to claim 1, and the second housing having a waterproof structure with a rotary lock according to claim 1 are provided characterizing the hook-type waterproof flange inlet.

12. In the hook-type waterproof flange inlet according to claim 11, a hinge-type waterproof cover that can be fitted to the connection end side of the second housing is provided, and a clip that can be locked to the clip receiver of the second housing is provided on the hinge-type waterproof cover characterizing the hook-type waterproof flange inlet.

13. a waterproof cover that can be fitted to the connection end side of the first housing of the hook-type waterproof cord connector body according to claim 4, wherein a clip receiver that can lock the clip of the first housing is provided characterizing the waterproof cover.

14. a waterproof cover that can be fitted to the connection end side of the second housing of the hook-type waterproof plug according to claim 6, wherein a clip that can be locked to the clip receiver of the second housing is provided characterizing the waterproof cover.

15. An adapter disposed between the hook-shaped waterproof panel socket according to claim 8 and the mounting surface, characterized in that it has an opening that can be fitted to the outer periphery of the first housing. An adapter for a hook-shaped waterproof panel socket.

16. An adapter disposed between the hook-shaped waterproof flange inlet according to claim 11 and the mounting surface, characterized in that it has an opening that can be fitted to the outer periphery of the second housing. An adapter for a hook-shaped waterproof flange inlet.

Images