JP5275207B2 - Catch tablet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transom catch free from being carelessly released and adjustable in the length of a latch arm. <P>SOLUTION: A latch assembly 14 includes: a fixed member 16 having a cam groove hole 27; an operating lever member 18 turnably connected to the fixed member 16; a movable member 21 connected to the fixed member 16 through a sliding pin 19; and a link member 80 interposed between the fixed member 16 and the operating lever member 18 and turnably connected thereto. The transom catch 10 is configured to change the turning operation of the operating lever member 18 around a connection part between the fixed member 16 and the operating lever member 18 as a fulcrum, into the moving operation of the movable member 21 together with the latch arm 22 in a vertical direction Y and an oblique direction along the cam groove hole 27 through a link member 80, thereby releasing the engagement of a latch part 61 and a keeper 15. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a catch lock belonging to a category similar to a so-called patch-on lock used for a housing such as a storage box of a switchboard.

  The latch device disclosed in Patent Literature 1 includes a base plate attached to a casing body, a receiver attached to a lid, and an operation connected to one end of the base plate so as to be pivotable via a transverse pivot. The lever includes a spring that urges the operation lever, and a latch arm that is connected to the operation lever and includes a tip hook portion that is engaged with the receiver.

Japanese Utility Model Publication No. 06-43414

  An object of the present invention is to provide a catch lock that does not require the spring. Another object of the present invention is to provide a catch lock capable of adjusting the length of the latch arm between the latch portion of the latch arm and the keeper.

  As means for solving the above-mentioned problems, the present invention provides a latch assembly (14) having a longitudinal direction (Y) and a height direction (Z), and a first side (11) and a second side (12). And the improvement of the catch lock (10) including the keeper (15).

  According to the present invention, the latch assembly (14) includes a side wall (23b) extending from the first side to the second side on both sides of the base portion (23a) and projecting in the height direction and having a top edge (23c). ), A straight portion (27a) extending from the vicinity of the end of the side wall on the second side to the first side, and connected to the straight portion, toward the top edge side and obliquely toward the first side. A fixing member (16) having a cam groove hole (27) formed from an extending inclined portion (27b), and an operation lever member (18) rotatably connected to the vicinity of the end of the fixing member on the first side. And a latch arm (22) having a latch part (61) engaged with the keeper and an arm part (62), and at least a sliding pin slidably inserted along the cam groove hole (19) movable connected to the fixed member via A material (21), a first end (80a) and a second end (80b), the first end being pivotally connected to the operation lever member via a pin (75); The second end portion includes a link member (80) pivotably connected to the sliding pin inserted into the cam groove hole, and the latch portion is engaged with the keeper, The pivoting operation of the operation lever member with a connecting portion with the operation lever member as a fulcrum, the movable member is moved to the first side together with the latch arm along the cam groove hole via the link member, and It changes to the movement operation | movement to the said diagonal direction, and, thereby, engagement with the said latch part and the said keeper is cancelled | released, It is characterized by the above-mentioned.

The present invention includes the following preferred embodiments in addition to the features described above.
(1) The movable member has a spiral hole (54) at an end portion of the movable member on the first side, and at least a part of the arm portion of the latch arm is in the longitudinal direction in the spiral hole. It has a spiral portion that is screwed so as to be able to move forward and backward.
(2) The outer shape of the latch portion is formed in a cylindrical shape.

  According to the catch lock according to the present invention, unlike the conventional lock, a spring for urging the operation lever member is unnecessary. Furthermore, according to a preferred embodiment, the length of the latch arm between the latch portion of the latch arm and the keeper is adjustable. Therefore, the object can be achieved.

The perspective view which shows the state which attached and locked the catch lock to the housing. The perspective view which shows the unlocking state of a catch lock. The disassembled perspective view of a catch lock. IV-IV sectional view taken on the line of FIG.

  1 is a perspective view showing a state where the catch lock 10 is attached to the housing 13 and locked, FIG. 2 is a perspective view showing an unlocked state of the catch lock 10, and FIG. 3 is an exploded perspective view of the catch lock 10. 4 is a cross-sectional view taken along line IV-IV in FIG. In FIG. 4, the unlocked state of the catch lock 10 is indicated by a virtual line.

  1 to 3, the catch lock 10 has a lateral direction X, a longitudinal direction Y, a height direction Z, and a central axis P that bisects the lateral direction X. The catch lock 10 is formed symmetrically with respect to the central axis P. The catch lock 10 has a first side and a second side 11, 12, and includes a latch assembly 14 fixed to the main body 13 a of the housing 13 and a keeper 15 fixed to the lid 13 b of the housing 13. Including.

  The latch assembly 14 includes a fixing member 16, an operation lever member 18 that is pivotably connected to the fixing member 16, and a vertical direction Y and a height through a link member 80 by a turning operation of the operation lever member 18. And a movable member 21 having a latch arm 22 that is moved in the direction Z and in an oblique direction. Unlike the illustrated example, the latch assembly 14 may be attached to the lid 13b, and the keeper 15 may be attached to the housing body 13a.

  The fixing member 16 includes a base portion 23a and side walls 23b extending from the first side 11 to the second side 12 on both sides of the base portion 23a and projecting in the height direction Z and having a top edge 23c. In the side wall 23b, a pin hole 24 through which the pin 17 is inserted in the vicinity of the end of the side wall 23b on the first side 11, and a through hole 25 through which a lock latch (not shown) provided separately on the second side 12 is passed, A receiving recess 26 that is adjacent to the pin hole 24 and allows the end of the pin 75 to move, and extends between the receiving recess 26 and the through hole 25 in the longitudinal direction Y, and allows the pins (sliding pins) 19 and 20 to slide. A guide groove 27 is formed. A screw hole 28 for passing a screw (not shown) is formed in the base portion 23a, and the fixing member 16 is fixed to the main body 13a of the housing 13 through the screw.

  The cam groove 27 includes a straight portion 27a extending from the vicinity of the end portion of the side wall 23b on the second side 12 to the first side 11, and a slant toward the top edge 23c and the first side 11 connected to the straight portion 27a. And an inclined portion 27b extending in the direction. Pins 19 and 20 sliding along the cam groove hole 27 are inserted.

  The keeper 15 has a fixing portion 40 in which a screw hole 40a is formed, and an engaging portion 41 extending from the fixing portion 40 in the height direction Z so as to be a curved surface to which the latch portion 61 of the latch arm 22 is engaged. . The engaging portion 41 is formed with a receiving recess 42 that allows movement of the arm portion 62 of the latch arm 22.

  The operation lever member 18 includes a top portion 70 that extends in the longitudinal direction Y, and a side wall 71 that protrudes from both sides of the top portion 70 to the base portion 23 a of the fixing member 16. A recess 72 is inserted into the center of each side wall 71 in the longitudinal direction Y, a pin hole 74 through which the pin 17 is inserted into an end of the first side 11, and a pin 75 is inserted between the recess 72 and the pin hole 74. A pin hole 76 is formed. The operation lever member 18 has both side walls 71 located inside the both side walls 23b of the fixing member 16, and in this state, is pivotally connected to the fixing member 16 via the pins 17 inserted into the pin holes 24 and 74, A ring 87 is fixed to the end of the pin 17. In this embodiment, the operation lever member 18 can turn about 45 ° to 47 ° in the height direction Z in the lying state. At the end of the side wall 71 on the second side 12, a through hole 77 is formed through which a lock latch (not shown) provided separately is inserted in a state of being aligned with the through hole 25 of the fixing member 16. A tab 78 is formed at the end of the top portion 70 on the second side 12 side so that the operator can turn the operation lever member 18 with his / her finger.

  The movable member 21 has a substantially U-shaped peripheral wall 50 in plan view, and the peripheral wall 50 is located outside the side wall 23 b of the fixed member 16. A receiving recess 51 that allows the end of the pin 17 to move is formed in a portion of the peripheral wall 50 near the first side 11. A holding portion 53 that protrudes toward the keeper 15 is formed at the end portion 50 a of the peripheral wall 50 on the first side. The holding portion 53 has a spiral hole 54 and communicates with the opening 53 a (see FIG. 4) of the end 50 a of the peripheral wall portion 50. At the end of the peripheral wall 50 on the second side 12, pin holes 55 and 56 are formed through which pins 19 and 20 slidably inserted into the cam groove holes 27 of the fixing member 16 are inserted. The movable member 21 is connected to the fixed member 16 through pins 19 and 20 so as to be movable in the vertical direction Y. However, the pin 20 is not an essential element for the connection. In the locked state, the ring 87 fixed to the end of the pin 17 is in contact with or opposed to the inner peripheral surface of the curved portion 51 a on the first side 11 of the receiving recess 51. The backlash in the height direction Z of the main body 13a and the lid body 13b can be prevented.

  The latch arm 22 is substantially T-shaped in a plan view, is opposed to the keeper 15, has a cylindrical outer portion 61 positioned on the first side 11, and a longitudinal direction Y from a substantially central portion of the latch portion 61. And an arm portion 62 having a thread (spiral portion) formed on the outer peripheral surface thereof. The latch arm 22 is coupled to the movable member 21 by the arm portion 62 being screwed into the spiral hole 54 of the movable member 21 so as to be able to advance and retreat. Therefore, the operator grasps the latch portion 61 with a finger, rotates the latch arm 22 in a predetermined direction to change the screwing position, and sets the length L of the arm 22 extending from the end portion 50a to the keeper 15 side. It can be adjusted freely. Therefore, even if a slight error occurs in the arrangement position of the keeper 15 and / or the fixing member 16, the latch portion 61 is securely locked to the keeper 15 by adjusting the length of the arm portion 62 of the latch arm 22. can do. However, it is preferable that the arm portion 62 of the latch arm 22 be adjustable as described above. However, in some cases, the adjustment may be disabled.

  The link member 80 has a pin receiving portion 81 on both sides and a bridge 82 between the pin receiving portions 81. Both pin receiving portions 81 have a first end portion 80a and a second end portion 80b spaced from the first end portion 80a. A pin hole 84 through which the pin 75 is inserted is formed at the first end 80a, and a pin hole 85 through which the pin 19 inserted through the cam groove hole 27 is formed at the second end 80b. The link member 80 is interposed between the fixing member 16 and the operation lever member 18, and the first end 80 a is located inside the end of the side wall 71 of the operation lever member 18 on the first side 11, and the pin hole It is connected to the operating lever member 18 via a pin 75 that is inserted into these in the matched state of 76 and 84. Further, the second end portion 80 b is pivotably connected to the operation lever member 18 and is also pivotably connected to the pin 19 inserted into the cam groove hole 27.

The catch lock 10 according to the embodiment of the present invention having the above configuration has the following functions.
In the locked state shown in FIGS. 1 and 4, when the operator puts his / her finger on the tab 78 of the operation lever member 18 and pivots the operation lever member 18 clockwise with the pin 17 as a fulcrum, the link member 80 is pinned. The pins 19 and 20 are slightly swung counterclockwise via the pins 19 and 75. At the same time, the pins 19 and 20 slide in the vertical direction Y along the straight portion 27a of the cam groove hole 27 of the fixing member 16, and the pin 19 Slides to the inclined portion 27b of the cam groove hole 27 and stops. Therefore, the movable member 21 slides in the longitudinal direction Y together with the latch arm 22 and slides in the oblique direction toward the top edge 23 c of the side wall 23 b of the fixed member 16 and toward the first side 11. Therefore, the movable member 21 is in a state of being lifted in a diagonal direction with the pins 19 and 20 as a fulcrum together with the latch arm 22. For this reason, the latch arm 22 is disengaged from the keeper 15 of the latch portion 61.

  When the operation lever member 18 is turned counterclockwise, in other words, when the operation lever member 18 is operated in the opposite direction, the operation lever member 18, the movable member 21, the latch arm 22, and the link member 80 are restored to their original shapes. To do. When the catch lock 10 is locked, for example, a padlock latch is inserted and the padlock is locked with a key while the through hole 25 of the fixing member 16 and the through hole 77 of the operation lever member 18 are aligned.

  According to the embodiment of the present invention, the operation lever member 18 and the movable member 21 including the latch arm 22 are connected via the link member 80 without using a spring member. In contrast, there is no possibility that the operating lever member 18 is inadvertently operated due to the urging of a spring or the like and the latch lock 10 is unlocked. Further, when the arm portion 62 of the latch arm 22 is screwed to the end portion of the movable member 21 so as to be able to advance and retract, the distance between the end portion and the keeper 15 can be adjusted. Convenient.

10 Catch Lock 11 First Side 12 Second Side 13 Housing 13a Housing Body 13b Lid 14 Latch Assembly 15 Keeper 16 Fixing Member 18 Operation Lever Member 19 Slide Pin 21 Movable Member 22 Latch Arm 23 Side Wall 23a Base 23c Top edge 27 Cam groove hole 27a Cam groove hole straight part 27b Cam groove hole inclined part 54 Spiral hole 61 Latch part 62 Arm part 75 Pin 80 Link member 80a First end part 80b of link member Second end of link member Part Y Longitudinal direction Z Height direction

Claims (3)

Catch lock (10) comprising a latch assembly (14) having a longitudinal direction (Y) and a height direction (Z), a first side (11) and a second side (12), and a keeper (15) In
The latch assembly (14) includes:
On both sides of the base portion (23a), an end of the side wall on the second side extends to the side wall (23b) extending from the first side to the second side and projecting in the height direction and having a top edge (23c). Cam groove formed from a straight portion (27a) extending from the vicinity to the first side and an inclined portion (27b) extending to the top edge side and extending obliquely to the first side. A fixing member (16) having a hole (27);
An operation lever member (18) pivotably connected to the vicinity of the end of the fixing member on the first side;
At least a sliding pin (19) having a latch arm (22) having a latch portion (61) and an arm portion (62) engaged with the keeper, and slidably inserted along the cam groove hole A movable member (21) connected to the fixed member via
The first end (80a) and the second end (80b) have a first end that is pivotally connected to the operation lever member via a pin (75), and the second end Including a link member (80) pivotably connected to the sliding pin inserted into the cam groove hole,
In a state where the latch portion is engaged with the keeper, the turning operation of the operation lever member with the connecting portion between the fixed member and the operation lever member as a fulcrum is performed via the link member. The catch is characterized in that the engagement with the latch portion and the keeper is released by changing the movement to the first side and the oblique direction together with the latch arm along the cam groove hole. Tablets. The movable member has a spiral hole (54) at the end of the movable member on the first side, and at least a part of the arm portion of the latch arm can advance and retreat in the longitudinal direction with respect to the spiral hole. The catch lock of Claim 1 which has a spiral part screwed together. The catch lock according to claim 1 or 2, wherein an outer shape of the latch portion is formed in a cylindrical shape.

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