WO2022138274A1 - プラグロック機構 - Google Patents
プラグロック機構 Download PDFInfo
- Publication number
- WO2022138274A1 WO2022138274A1 PCT/JP2021/045785 JP2021045785W WO2022138274A1 WO 2022138274 A1 WO2022138274 A1 WO 2022138274A1 JP 2021045785 W JP2021045785 W JP 2021045785W WO 2022138274 A1 WO2022138274 A1 WO 2022138274A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plug
- lock member
- bearing
- portions
- lock mechanism
- Prior art date
Links
- 239000002184 metal Substances 0.000 claims description 13
- 229920003002 synthetic resin Polymers 0.000 claims description 9
- 239000000057 synthetic resin Substances 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000004323 axial length Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
- H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
- H01R13/5812—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part the cable clamping being achieved by mounting the separate part on the housing of the coupling device
Definitions
- the present invention relates to a plug lock mechanism for preventing the plug connected to the female connector from being inadvertently removed.
- an inlet (corresponding to the female connector of the present invention) in which a pair of protrusions (corresponding to the bearing portion of the present invention) is formed, and a cable connector connected to this inlet. It has (corresponding to the plug of the present invention), and a hole (corresponding to the bearing hole of the present invention) is provided in each of the pair of the protrusions, and a spring member (corresponding to the lock member of the present invention) is provided in these holes.
- the bearings are rotatably supported by inserting both ends of the bearing (see, for example, Patent Document 1).
- An object of the present invention is to solve the above problems and to provide a plug lock mechanism capable of holding a lock member at an arbitrary position with a simple structure.
- the plug lock mechanism according to claim 1 of the present invention is oscillated by a female connector, a plug that can be inserted and removed from the female connector, a pair of bearing portions provided at positions sandwiching the female connector, and the bearing portions.
- a plug lock mechanism having a lock member that can be pivotally supported and the lock member has a pair of shaft portions coaxially at both ends corresponding to the bearing portion, the central axis of the bearing hole of the bearing portion is the said. It is configured so that the shaft portion is inclined with respect to the central axis of the shaft portion and the shaft portion is in pressure contact with the inner wall of the bearing hole.
- the plug lock mechanism according to claim 2 of the present invention presses the inner wall of the bearing hole at two or more locations where the shaft portion is separated from the central axis direction.
- the lock member is formed by bending a metal wire, and the bearing portion is made of a synthetic resin softer than the metal wire. It is a thing.
- the bearing hole is inclined so that the inlet side thereof is closer to the pull-out direction side of the plug than the inner side.
- the plug lock mechanism according to claim 1 of the present invention is configured as described above, and has a simple structure of the shaft portion and the shaft hole regardless of the shape of the device provided with the plug lock mechanism. After inserting the plug into the female connector while holding the lock member at an arbitrary position by friction due to pressure welding, the lock member can be used to prevent the plug from coming off.
- the lock member By pressing the shaft portion into the bearing hole at two or more locations separated from each other in the central axis direction, the lock member can be stably swung without wobbling.
- the lock member is formed by bending a metal wire, and the bearing portion is made of a synthetic resin softer than the metal wire, so that the shaft hole is deformed and comes into contact with the shaft portion on a wide surface. As a result, the lock member can be reliably held by friction.
- the lock member can be easily attached to the bearing portion.
- FIGS. 1 to 12 The upper and lower parts in FIGS. 2, 4 and 6 are defined as the upper and lower parts in the present embodiment. Further, the left and right in FIGS. 3, 5 and 7 are defined as the left and right of the present embodiment.
- the portable refrigerator / freezer 1 is a portable freezer / refrigerator as a device provided with the plug lock mechanism 11 of the present invention.
- the portable refrigerator / freezer 1 has a mechanism portion 2, an accommodating portion 3, and a lid 4, and has handles 5 on the mechanism portion 2 side and the accommodating portion 3, respectively.
- the mechanism unit 2 is provided with an operation unit 6, an intake unit 7, and an exhaust unit 8.
- the outer shell 2A made of synthetic resin of the mechanism portion 2 is provided with a recess 9, and the recess 9 is provided with a power supply connection portion 10 for supplying power to a cooling mechanism (not shown).
- the plug lock mechanism 11 is provided in the power supply connection portion 10. Since the basic configuration of the portable refrigerator-freezer 1 is known, detailed description thereof will be omitted.
- the plug lock mechanism 11 includes the power supply connection portion 10, a power cord 12, and a plug lock portion 13.
- the power supply connection portion 10 serves as a through hole 14 provided in the innermost part of the recess 9, a guide cylinder 15 attached to the through hole 14, and a female connector provided close to the inner end of the guide cylinder 15. It has a power receiving connector 16 of the above.
- the guide cylinder 15 is made of metal and is configured as a separate body from the outer shell 2A made of synthetic resin of the mechanism portion 2 in which the through hole 14 is formed.
- the guide cylinder 15 may be integrally formed with the outer shell 2A. Further, the guide cylinder 15 is not always necessary depending on the shape of the plug 17 of the power cord 12 connected to the power receiving connector 16.
- the power cord 12 includes an electric wire portion 18 and a plug 17 provided at the tip of the electric wire portion 18. Then, a locking surface 19 is formed at the end portion of the plug 17 on the side of the electric wire portion 18.
- the locking surface 19 is a convex curved surface.
- the insertion direction of the plug 17 is horizontal and inward (right direction in FIGS. 2, 4, 6 and upward in FIGS. 3, 5, 7). In other words, the pull-out direction of the plug 17 is horizontal and outward (left direction in FIGS. 2, 4, 6 and downward in FIGS. 3, 5, 7).
- the plug lock portion 13 has a pair of bearing portions 20, 20 and a lock member 21.
- the bearing portions 20 and 20 are the left wall 9L and the right wall 9R of the recess 9, and the left bearing hole 22L and the right bearing hole 22R are formed in the left wall 9L and the right wall 9R, respectively.
- the bearing holes 22L and 22R are not coaxial, and the central axis X1L of the left bearing hole 22L and the central axis X1R of the right bearing hole 22R intersect. Further, the bearing holes 22L and 22R are formed so as to penetrate the left wall 9L and the right wall 9R, respectively. Therefore, the left bearing hole 22L has a first edge 23L and a second edge 24L.
- the right bearing hole 22R has a first edge 23R and a second edge 24R. Since the first edges 23L and 23R are provided on the outer surface of the recess 9 of the outer shell 2A, they are inside in the positional relationship with the second edges 24L and 24R. Further, the bearing holes 22L and 22R are circular holes, and their inner diameters are D1. The bearing holes 22L and 22R may be formed at the time of molding the outer shell 2A, or may be drilled in the left wall 9L and the right wall 9R by post-processing.
- the lock member 21 is formed by bending a metal wire such as steel having a circular cross-sectional shape and being harder than the synthetic resin constituting the outer shell 2A.
- the lock member 21 includes a pair of shaft portions 25L and 25R formed at both ends, arm portions 26L and 26R provided inside these shaft portions 25L and 25R, and these arm portions 26L.
- 26R has a locking portion 27 provided inside.
- the shaft portions 25L and 25R and the arm portions 26L and 26R are provided on the same virtual plane VPX.
- the locking portion 27 is provided on a virtual plane VPY orthogonal to the virtual plane VPX.
- the lock member 21 is formed symmetrically with respect to the center of the locking portion 27.
- the pair of shaft portions 25L and 25R have a common central axis X2. That is, the lock member 21 can swing with the central axis X2 as the swing center.
- the outer diameter of the pair of shaft portions 25L and 25R is D2. And D1> D2. Therefore, the pair of shaft portions 25L and 25R can be inserted into the bearing holes 22L and 22R, respectively.
- the axial length of each of the shaft portions 25L and 25R is formed to be sufficiently longer than the thickness of the left wall 9L and the right wall 9R. Therefore, when the lock member 21 is attached to the pair of bearing portions 20, 20, the tips of the shaft portions 25L, 25R project inward from the inner surface of the outer shell 2A.
- the central axis X1L of the left bearing hole 22L and the central axis X1R of the right bearing hole 22R intersect. These central axes X1L and X1R are inclined with respect to the central axes X2 of the shaft portions 25L and 25R of the lock member 21.
- the bearing holes 22L and 22R have their first edges 23L and 23R on the pull-out direction (downward in FIGS. 3, 5 and 7) of the plug 17 with respect to the second edges 24L and 24R. As such, the central axes X1L and X1R are tilted.
- the first edges 23L and 23R are displaced from the second edges 24L and 24R in the pull-out direction of the plug 17 (downward in FIGS. 3, 5 and 7), so that the bearing holes 22L and 22R are formed.
- the overlapping 28L and 28R thereof are non-circular as shown in FIGS. 9 and 10.
- the short length L of the non-circular overlap 28L, 28R passing through the central axis X2 is smaller than the outer diameter D2 of the shaft portions 25L, 25R.
- the shaft portions 25L and 25R are inserted into the bearing holes 22L and 22R, they are in pressure contact with the first edges 23L and 23R and the second edges 24L and 24R, respectively.
- the shaft portion 25L is in pressure contact with the inner portion 23LB of the first edge 23L and the front portion 24LF of the second edge 24L.
- the shaft portion 25R is in pressure contact with the inner portion 23RB of the first edge 23R and the front portion 24RF of the second edge 24R.
- the inner portions 23LB and 23RB of the first edges 23L and 23R and the front portions 24LF and 24RF of the second edges 24L and 24R are crushed.
- the shaft portions 25L and 25R come into surface contact with the bearing holes 22L and 22R.
- the shaft portions 25L and 25R are in pressure contact with the bearing holes 22L and 22R at two locations separated in the central axis X2 direction.
- the bearing holes 22L so that the first edges 23L and 23R are on the pull-out direction (downward in FIGS. 3, 5 and 7) of the plug 17 with respect to the second edges 24L and 24R. Since the central shafts X1L and X1R of 22R are inclined, it is easy to insert the shaft portions 25L and 25R of the lock member 21 into the bearing holes 22L and 22R when assembling the plug lock mechanism 11. .. As a result, the lock member 21 can be easily attached to the bearing portions 20 and 20. That is, the plug lock mechanism 11 can be easily assembled.
- the lock member 21 has the central shaft X2 of the shaft portions 25L and 25R as the swing center. Then, as described above, the central shafts X1L and X1R of the bearing holes 22L and 22R of the bearing portions 20 and 20 are inclined with respect to the central shaft X2 of the shaft portions 25L and 25R, so that the central shaft X2
- the short length L which is the distance between the inner portions 23LB and 23RB of the first edges 23L and 23R of the bearing holes 22L and 22R and the front portions 24LB and 24RB of the second edges 24L and 24R, is described above.
- the shaft portion 25L is in pressure contact with two locations, the inner portion 23LB of the first edge 23L and the front portion 24LF of the second edge 24L, which are separated from each other in the direction of the central axis X2.
- the shaft portion 25R is in pressure contact with two locations, the inner portion 23RB of the first edge 23R and the front portion 24RF of the second edge 24R, which are separated from each other in the direction of the central axis X2. Therefore, resistance due to friction is applied to the swing of the lock member 21. Due to this frictional force, the lock member 21 can maintain the posture in a lifted state at an arbitrary position.
- the lock member 21 swings stably without wobbling. Can be done. Further, the lock member 21 is formed by bending a metal wire such as steel having a circular cross-sectional shape, and the bearing portions 20 and 20 are made of a synthetic resin softer than the metal wire, whereby the shaft hole 22L is formed. , 22R first edge 23L, 23R inner part 23LB, 23RB and second edge 24L, 24R front part 24LF, 24RF are pushed by the shaft part 25L, 25R and deformed, and the shaft part 25L on a wide surface , 25R abuts.
- each bearing hole 22L is not related to the shape of the outer shell 2A of the portable refrigerator-freezer 1 as a device provided with the plug lock mechanism 11. , 22R can be tilted to maintain the posture of the lock member 21.
- the plug 17 is inserted into the power receiving connector 16 of the power supply connecting portion 10 as shown in FIGS. 4 and 5.
- the posture of the lock member 21 is held by the frictional force, the user does not need to support the lock member 21 by hand. Therefore, the plug 17 can be easily inserted into the power receiving connector 16.
- the lock member 21 is swung and tilted. As a result, the locking portion 27 is located outside the locking surface 19 of the plug 17 that has been inserted. In this state, even if the electric wire portion 18 is pulled by hooking a foot or the like, the locking surface 19 of the plug 17 comes into contact with the locking portion 27 of the lock member 21, so that the plug 17 is the power receiving connector. It can be prevented from being pulled out from 16. Therefore, it is prevented that the plug 17 is inadvertently disconnected from the power receiving connector 16.
- the lock member 21 When the plug 17 is removed from the power receiving connector 16, the lock member 21 may be raised and then the plug 17 may be pulled out from the power receiving connector 16. Also at this time, since the lock member 21 is held in a posture in which the locking portion 27 is lifted, the user does not need to support the lock member 21 by hand. Therefore, the plug 17 can be easily removed from the power receiving connector 16.
- the plug lock mechanism 11 of the present invention includes a power receiving connector 16 as a female connector, a plug 17 that can be inserted and removed from the power receiving connector 16, and a pair of bearings provided at positions sandwiching the power receiving connector 16.
- a pair of shaft portions 25L, 25R having a portion 20 and 20 and a lock member 21 swingably supported by the bearing portions 20 and 20 and the lock member 21 corresponding to the bearing portions 20 and 20.
- the central shafts X1L and X1R of the bearing holes 22L and 22R of the bearing portions 20 and 20 are inclined with respect to the central shaft X2 of the shaft portions 25L and 25R, and the shaft portion 25L, Since the 25R is configured to be in pressure contact with each of the bearing holes 22L and 22R, the shaft portion 25L and 25R and the shaft hole 22L have a simple structure regardless of the shape of the device provided with the plug lock mechanism 11. , The plug 17 can be inserted into the power receiving connector 16 while holding the lock member 21 at an arbitrary position by friction due to pressure contact with the 22R, and then the plug 17 can be prevented from coming off by the lock member 21. Is.
- the shaft portions 25L and 25R are brought into pressure contact with the bearing holes 22L and 22R at two locations separated from each other in the central axis X2 direction, whereby the lock member 21 is stabilized without wobbling. It can be rocked.
- the lock member 21 is formed by bending a metal wire such as steel, and the bearing portions 20 and 20 are made of a synthetic resin softer than the metal wire.
- the lock member 21 can be reliably held by friction.
- the bearing holes 22L and 22R are arranged so that the first edges 23L and 23R on the inlet side thereof are closer to the pull-out direction side of the plug 17 than the second edges 24L and 24R on the back side. By inclining the lock member 21, the lock member 21 can be easily attached to the bearing portions 20 and 20.
- the bearing hole is formed so as to be inclined in the horizontal direction, but it may be formed so as to be inclined in the vertical direction.
- the bearing hole is a through hole, but it may be a bottomed hole.
- the bearing hole is a circular hole, but a hole having another shape, for example, a polygonal hole or an elliptical hole may be used.
- the plug is the power feeding side and the female connector is the power receiving side, but the plug may be the power receiving side and the female connector may be the power receiving side.
- both the central axes of the pair of bearing holes are inclined with respect to the central axis of the shaft portion, but as shown in FIG. 13, the central axis X3 of the bearing hole 32 of one bearing portion 30 is formed. Only the bearing hole 22R of the other bearing portion 20 may be inclined so as to coincide with the central shaft X2 of the shaft portion 25L.
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Description
10 電源接続部
11 プラグロック機構
16 受電コネクタ(雌コネクタ)
17 プラグ
20 軸受部
21 ロック部材
22L 左軸受孔
22R 右軸受孔
25L 軸部
25R 軸部
30 軸受部
32 軸受孔
X1L 左軸受孔22Lの中心軸
X1R 右軸受孔22Rの中心軸
X2 軸部25L,25Rの中心軸
Claims (4)
- 雌コネクタと、この雌コネクタに対し抜き差し可能なプラグと、前記雌コネクタを挟んだ位置に設けられる一対の軸受部とこの軸受部によって揺動可能に軸支されるロック部材とを有し、このロック部材が前記軸受部に対応する一対の軸部を同軸状に両端に有するプラグロック機構において、
前記軸受部の軸受孔の中心軸が前記軸部の中心軸に対し傾斜すると共に、前記軸部が前記軸受孔の内壁に対し圧接するように構成されることを特徴とするプラグロック機構。 - 前記軸部がその中心軸方向に離れた二箇所以上で前記軸受孔の内壁に圧接することを特徴とする請求項1記載のプラグロック機構。
- 前記ロック部材が金属線材を折り曲げて構成されると共に、前記軸受部が金属線材よりも柔らかい合成樹脂で構成されることを特徴とする請求項1記載のプラグロック機構。
- 前記軸受孔が、その入口側が奥側よりも前記プラグの引き抜き方向側となるように傾斜することを特徴とする請求項1記載のプラグロック機構。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/265,735 US20240030652A1 (en) | 2020-12-25 | 2021-12-13 | Plug lock mechanism |
CN202180084124.0A CN116584007A (zh) | 2020-12-25 | 2021-12-13 | 插头锁定机构 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020217053A JP7108679B2 (ja) | 2020-12-25 | 2020-12-25 | プラグロック機構 |
JP2020-217053 | 2020-12-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022138274A1 true WO2022138274A1 (ja) | 2022-06-30 |
Family
ID=82157894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2021/045785 WO2022138274A1 (ja) | 2020-12-25 | 2021-12-13 | プラグロック機構 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20240030652A1 (ja) |
JP (1) | JP7108679B2 (ja) |
CN (1) | CN116584007A (ja) |
WO (1) | WO2022138274A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52145278U (ja) * | 1976-04-28 | 1977-11-04 | ||
JPH07153526A (ja) * | 1993-12-02 | 1995-06-16 | Nec Corp | インレットコネクタ |
JP2001074009A (ja) * | 1999-09-02 | 2001-03-23 | Bandai Co Ltd | 連結装置 |
JP2003065355A (ja) * | 2001-08-29 | 2003-03-05 | Origin Electric Co Ltd | トルクヒンジ又はトルクリミッタ |
JP2004108453A (ja) * | 2002-09-17 | 2004-04-08 | Sugatsune Ind Co Ltd | ヒンジ装置 |
-
2020
- 2020-12-25 JP JP2020217053A patent/JP7108679B2/ja active Active
-
2021
- 2021-12-13 US US18/265,735 patent/US20240030652A1/en active Pending
- 2021-12-13 WO PCT/JP2021/045785 patent/WO2022138274A1/ja active Application Filing
- 2021-12-13 CN CN202180084124.0A patent/CN116584007A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52145278U (ja) * | 1976-04-28 | 1977-11-04 | ||
JPH07153526A (ja) * | 1993-12-02 | 1995-06-16 | Nec Corp | インレットコネクタ |
JP2001074009A (ja) * | 1999-09-02 | 2001-03-23 | Bandai Co Ltd | 連結装置 |
JP2003065355A (ja) * | 2001-08-29 | 2003-03-05 | Origin Electric Co Ltd | トルクヒンジ又はトルクリミッタ |
JP2004108453A (ja) * | 2002-09-17 | 2004-04-08 | Sugatsune Ind Co Ltd | ヒンジ装置 |
Also Published As
Publication number | Publication date |
---|---|
US20240030652A1 (en) | 2024-01-25 |
JP2022102364A (ja) | 2022-07-07 |
JP7108679B2 (ja) | 2022-07-28 |
CN116584007A (zh) | 2023-08-11 |
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