JP2012149482A - Door lock handle device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a relatively-simple-to-configure door lock handle device for keeping a door in a well sealed condition by clamping the door at its plurality of upper and lower parts without hanging it down.SOLUTION: The door lock handle device includes first and second strikes 1, 2 on the side of a fixed frame body B, a handle base 3 on the side of a door D, a lever handle 5, a connection link 14, a first clamp body 8, a reverse spring 19, a second clamp body 21, and a rod 25. Hook parts 10, 23 of the clamp bodies 8, 21 are joined to each other via the rod 25 and engage/disengage with/from the strikes 1, 2, respectively. The reverse spring 19 holds the lever handle 5 being at a non-lock position in a rising condition, exceeds a dead center during rotating the lever handle 5, and holds the lever handle 5 being at a lock position in a falling condition. At the lock position of the clamp body 8, a movable pivotal shaft 13 comes into a position over a reference straight line L, and at the non-lock position thereof, the movable pivotal shaft 13 comes into a position under the reference straight line L.

Description

  The present invention relates to a clamp-type door lock handle device for fastening and locking a closed door to a fixed frame body such as a cabinet body in an electrical equipment storage cabinet or the like.

As a door lock handle device for a cabinet for storing electrical equipment such as a distribution board or a distribution board, for example, a double clamp type door lock handle device described in Patent Document 1 is known. The lock handle device is fixed to the door at a position facing the first strike and the second strike when the door is closed; a first strike and a second strike provided at a distance from each other on the fixed frame body side; A main body case; a lever handle housed in the main body case, pivotally attached to the main body case by a first fixed pivot parallel to the front surface of the door, and provided with a drive arm at a position on the tip side of the first fixed pivot; A connecting link whose front end is pivotally attached to the tip of the drive arm by a first movable shaft parallel to the fixed pivot; a second link disposed parallel to the first fixed pivot and obliquely rearward of the first fixed pivot A first clamp body having a base end portion pivotally attached to the main body case by a fixed pivot, and a distal end hook portion protruding to the back side of the main body case engaging and disengaging with the first strike; and parallel to the first fixed pivot A second clamp body in which a base end portion is pivotally attached to the main body case by a third fixed pivot disposed obliquely rearward from the first fixed pivot, and a distal end hook portion protruding to the back side of the main body case is engaged with and disengaged from the second strike. And consist of
The second fixed pivot and the third fixed pivot are arranged at symmetrical positions with respect to an operation reference line that is perpendicular to the front surface of the door and passes through the first fixed pivot, and is parallel to the first fixed pivot and along the operation reference line. The passive shoulder of the first clamp body and the passive shoulder of the second clamp body are connected to the rear end portion of the connection link by the second movable pivot that moves in a moving manner, and the tip hook portion of the first clamp body serves as the first strike. In the locked state where the second hook is engaged with the tip hook portion of the second clamp body, the first movable pivot is located at a position beyond the operation reference line toward the second fixed pivot. In a door unlocked state in which the tip hook portion of the clamp body is detached from the first strike and the tip hook portion of the second clamp body is detached from the second strike, the first movable pivot moves the operation reference line to the third fixed pivot side. So that it ’s over the It is intended. In this apparatus, in order to move the second movable pivot along the operation reference line, both end portions thereof are inserted into guide slots formed in the main body case. In addition, an interlocking slot is formed in each of the passive shoulder of the first clamp body and the passive shoulder of the second clamp body, and the second movable pivot is inserted into these interlocking slots so that both clamp bodies are connected to the link link. It is the structure connected with a rear-end part.

JP 2006-63673 A

  The invention according to this application is a double-clamp type door lock that uses only a link connection that is simple and has little play, without using the above-described complicated structure in which the movable pivot is engaged with the guide slot or the interlocking slot. The object is to provide a handle device.

Hereinafter, the present invention will be described with reference to the accompanying drawings, but the present invention is not limited thereto.
In order to solve the above problems, the door lock handle device of the invention according to this application includes first and second strikes 1 and 2 provided on the fixed frame B side with a distance in the vertical direction between each other, A handle base 3 fixed to the door D at a position facing the front of the first strike and the second strikes 1 and 2 when the door D is closed; and a first fixed pivot 4 parallel to the front surface of the door D By being pivotally mounted on the handle base 3 at the end side, it can rotate between a fallen locked position (FIG. 3) and an upright unlocked position (FIG. 1). And a lever handle 5 having a drive arm 6 that extends in the vertical direction and extends rearward in the locked position at a position distal to the first fixed pivot 4; The first connection is pivotally attached to the tip of the drive arm 6 at the first pivot point by the first movable pivot 13 parallel to the first fixed pivot 4. One end is pivotally attached to the second pivot point 16 of the first connecting link 14 by a second movable pivot 16 having a link 14; one end and the other end and parallel to the first fixed pivot 4. A second connecting link 17; a base end portion 9, a hook portion 10 projecting from the base end portion 9 to the back side of the handle base 3, and a passive shoulder extending from the base end portion 9 in the opposite direction to the hook portion 10. And a base end 9 is pivotally attached to the handle base 3 at a lower oblique rear position of the first fixed pivot 4 by a second fixed pivot 7 parallel to the first fixed pivot 4 and a passive shoulder. The first movable pivot 18 is parallel to the first fixed pivot 4 and the first movable pivot 18 By being pivotally attached to the third pivot point 18 of the link 14, it rotates in the forward and reverse directions between the locked position and the unlocked position in conjunction with the lever handle 5, and the hook portion 10 is in the first strike at the locked position. A first clamp body 8 that engages with the rear surface from above and the hook portion 10 disengages from the first strike 1 in the unlocked position; a base end portion 22, and a base end portion 22 to the handle base 3. It has a hook portion 23 protruding to the back side and a passive shoulder portion 24 extending from the base end portion 22 in the opposite direction to the hook portion 23, and the base end portion 22 is a third parallel to the first fixed pivot 4. The second connecting link 17 is pivotally attached to the handle base 3 by the fixed pivot 20 at an obliquely rearward position above the first fixed pivot 4 and the passive shoulder 24 is parallel to the first fixed pivot 4 by a fourth movable pivot 25. Pivoted to the other end of As a result, the lever handle 5 rotates in the opposite direction to the first clamp body 8 between the locked position and the unlocked position in conjunction with the lever handle 5, and the hook portion 23 is moved against the second strike 2 in the locked position. A second clamp body 21 that engages with the rear surface from below and the hook portion 23 disengages from the second strike 2 in the unlocked position; one end side is locked to the second fixed pivot 7, and the other end side is the first clamp. The lever handle 5 which is locked to the movable pivot 13 and held in the unlocked position is held in an upright state, the dead center is exceeded during the rotation from the unlocked position to the locked position, and the lever handle 5 in the locked position is in the lying down state. The first movable pivot 13 and the second movable pivot at a position immediately before the lock position when the lever handle 5 is rotated from the non-lock position to the lock position. 6 extends beyond the reference line L extending from the second movable pivot 16 at a right angle to the front surface of the door from the lower side to the upper side, so that the first and second clamp bodies 8, 21 are not in the locked position. When receiving a rotational external force in the locking direction, the lever handle 5 is pressed in the lying down direction via the second connection link 17 and the external force is resisted by the reaction force.

  According to the invention according to this application, it is possible to provide a double clamp type door lock handle device using only a relatively simple link connection.

It is a longitudinal cross-sectional view of the unlocking state of the lock handle apparatus for doors which concerns on this invention. It is a longitudinal cross-sectional view of the lock state of the lock handle apparatus for doors of FIG. It is a longitudinal cross-sectional view in the middle of operation of the lock handle apparatus for doors of FIG. It is the rear view which looked at the lock handle device for doors of Drawing 1 from the back side of the door. It is a top view of the lock handle apparatus for doors of FIG.

Embodiments of the present invention will be described with reference to the drawings.
1 to 3 are longitudinal side views showing a state in which the lock handle device of the present invention is attached to the door D. FIG. 1 shows an unlocked state, FIG. 2 shows an operating state, and FIG. 3 shows a locked state. Show. In the figure, reference numeral 1 denotes a first strike and 2 denotes a second strike, which are fixed to a peripheral flange portion B1 of an opening in a fixed frame B that is a main body of a cabinet or the like with a required interval in the vertical direction.

  The handle base 3 of the lock handle device is arranged on the front surface of the free end portion side of the door D so as to face the strikes 1 and 2 when the door is closed, and is fastened and fixed to the door D with a screw from the back (rear surface) side of the door D. Is done.

  The first fixed pivot 4 is parallel to the front surface of the door D and is supported by the left and right side wall portions of the handle base 3 at both ends, and the intermediate portion penetrates the upper end (base end) portion of the lever handle 5 in the horizontal direction. The lever handle 5 has a halfway position (FIG. 2) between a non-locking position (FIG. 1) standing up with respect to the handle base 3 and a lying locked position (FIG. 3) around the first fixed pivot 4. And is arranged so as to extend in the vertical direction along the front surface of the door D at the lock position. The lever handle 5 has a drive arm 6 that extends rearward (back side of the door) from the first fixed pivot 4 in the locked position.

  The second fixed pivot 7 is parallel to the first fixed pivot 4, and both ends are supported by the left and right side wall portions of the handle base 3 at an obliquely lower rear position of the first fixed pivot, and the intermediate portion is the base of the first clamp body 8. The end 9 is penetrated in the horizontal direction. The first clamp body 8 includes a base end portion 9, a hook portion 10 protruding from the base end portion 9 to the back side of the handle base 3, and a passive shoulder portion 11 extending from the base end portion in a direction opposite to the hook portion 10. And have. A spring receiving protrusion 12 protrudes from the base end portion 9.

  The first movable pivot 13 is parallel to the first fixed pivot 4 and is supported at both ends by the tip of the drive arm 6 in the lever handle 5. The intermediate portion of the first movable pivot 13 passes through the first pivot point of the first connection link 14. The first connecting link 14 is substantially L-shaped, has a first pivot point at one end, a second pivot point in the middle, a third pivot point at the other end, and a spring near the first pivot point. A receiving projection 15 is provided.

  The second movable pivot 16 is parallel to the first fixed pivot 4 and pivotally supports the second pivot point of the first connection link 14 and one end of the second connection link 17. The third movable pivot 18 is parallel to the first fixed pivot 4 and pivotally supports the third pivot point of the first connection link 14 and the passive shoulder 11 of the first clamp body 8. A reversing spring is provided between the spring receiving protrusion 12 of the first clamp body 8 and the spring receiving protrusion 15 of the first connecting link 14 (substantially between the second fixed pivot 9 and the first movable pivot 13). 19 is inserted.

  The third fixed pivot 20 is parallel to the first fixed pivot 4, and both ends are supported by the left and right side wall portions of the handle base 3 at the diagonally upper and rear positions of the first fixed pivot, and the middle portion is the base of the second clamp body 21. The end part 22 is penetrated in the horizontal direction. The second clamp body 21 has the same shape as the first clamp body 8 and is provided in a vertically inverted state. The base end portion 22, and the hook portion 23 that protrudes from the base end portion 22 to the back side of the handle base 3, It has a passive shoulder 24 that extends in the opposite direction from the hook 23 from the proximal end. The fourth movable pivot 25 is parallel to the first fixed pivot 4 and pivotally supports the other end of the second connection link 17 and the passive shoulder 24 of the second clamp body 21.

  Accordingly, the first and second clamp bodies 8 and 21 rotate forward and backward between the unlocked position (FIG. 1) and the locked position (FIG. 3) in conjunction with the up-and-down rotation of the lever handle 5. The hook portions 10 and 23 are engaged with the first and second strikes 1 and 2 from the upper side or the lower side, respectively, and the hook portions 10 and 23 are engaged with the first and second strikes 1 and 2 in the unlocked position. Leave.

  The reversing spring 19 is substantially engaged at one end side with the first movable pivot 13 and at the other end with the second fixed pivot 7, so that the lever handle 5 in the unlocked position is raised (see FIG. 1) (applying a counterclockwise rotational force about the fixed pivot 4 in FIG. 1), the pressure dead center is exceeded during the rotation from the unlocked position to the locked position (FIG. 2), and the locked position (FIG. 3). ) Is held in a lying state (a clockwise rotational force is applied about the shaft 4 in FIG. 3).

  Thus, as shown in FIG. 1, the main body of the lock handle device has a first movable pivot (first pivot point) at the unlocked position where the hooks 10, 23 of the clamp bodies 8, 21 are disengaged from the strikes 1, 2. ) While a straight line L1 connecting 13 and the second movable pivot (second pivot point) 16 is below a reference straight line L extending perpendicularly from the second movable pivot (second pivot point) 16 to the door front surface, As shown in FIG. 3, in the locked position where the hook portions 10 and 23 of the clamp bodies 8 and 21 are engaged with the strikes 1 and 2, the respective portions are arranged so that the straight line L <b> 1 comes to a position beyond the reference straight line L. Be placed.

  Now, in the unlocked state shown in FIG. 1, the lever handle 5 stands from the handle base 3 and is held in the standing state by the reversing spring 19. The hook portions 10 and 23 of the first and second clamp bodies 8 and 21 are detached from the first and second strikes 1 and 2, respectively. The straight line L1 is on the lower right side of the reference straight line L.

  From this state, when the lever handle 5 is rotated counterclockwise (clockwise) against the reversing spring 19, the reversing spring 19 reaches the pressure dead center at the intermediate position shown in FIG. Is biased in the lying down direction to reach the locked position shown in FIG. During this time, the straight line L1 is disposed on the upper right side, exceeding the reference straight line L upward. In this state, the hooks 10 and 23 are disengaged due to external impact and vibration, the weight of the door, the internal pressure of the fixed frame, etc. (the hook 10 is clockwise in the figure and the hook 23 is counterclockwise in the figure). Even if the connecting link 14 is not rotated even if it receives a rotational force, the hook portions 10 and 23 do not leave the strikes 1 and 2. Since the door is locked at two points, a good sealed state is secured.

DESCRIPTION OF SYMBOLS 1 1st strike 2 2nd strike 3 Handle base 4 1st fixed pivot 5 Lever handle 6 Drive arm 7 2nd fixed pivot 8 1st clamp body 9 Base end part 10 Hook part 11 Passive shoulder part 12 Spring receiving protrusion 13 1st Movable pivot 14 Connection link 15 Spring receiving projection 16 Second movable pivot 17 Second connection link 18 Third movable pivot 19 Reversing spring 20 Third fixed pivot 21 Second clamp body 22 Base end 23 Hook 24 Passive shoulder 25 First 3 movable pivot B fixed frame B1 surrounding wall D door L reference straight line L1 straight line connecting the first and second pivot points

Claims (1)

  First and second strikes provided on the fixed frame side with a vertical distance between each other; facing the front of the first strike and the second strike when the door pivotally supported on the fixed frame side is closed A handle base fixed to the door in a position; a first fixed pivot parallel to the front surface of the door; And a drive arm that extends in the vertical direction from the proximal end to the distal end in the locked position and extends rearward in the locked position at a position distal to the first fixed pivot. A lever handle having first, second and third pivot points, and a first movable pivot which is parallel to the first fixed pivot and the drive lever at the first pivot point. A first connecting link pivotally attached to the distal end of the system; one end and the other end, and a second movable pivot that is parallel to the first fixed pivot and one end of which is the second of the first coupling link. A second connecting link pivotally attached to the pivot point; a base end portion, a hook portion projecting from the base end portion to the back side of the handle base, and a passive shoulder extending from the base end portion in a direction opposite to the hook portion And a proximal shoulder portion is pivotally attached to the handle base at a lower oblique rear position of the first fixed pivot by a second fixed pivot parallel to the first fixed pivot, and the passive shoulder is the first fixed pivot. Is pivotally attached to a third pivot point of the first connection link by a third movable pivot that is parallel to the lever, and rotates forward and backward between the locked position and the unlocked position in conjunction with the lever handle. The hook part engages with the first strike from the upper side to the back side. A first clamp body in which the hook part is disengaged from the first strike in the unlocked position; a base end part, a hook part projecting from the base end part to the back side of the handle base; and a direction opposite to the hook part from the base end part A passive shoulder extending to the handle base at a diagonally rearward position above the first fixed pivot by a third fixed pivot parallel to the first fixed pivot. The portion is pivotally attached to the other end portion of the second connection link by a fourth movable pivot that is parallel to the first fixed pivot, so that the first position between the locked position and the unlocked position is interlocked with the lever handle. A second clamp body that rotates forward and backward in the opposite direction to the one clamp body, the hook portion engages with the second strike from the lower side with respect to the second strike in the locked position, and the hook portion disengages from the second strike in the unlocked position; ;one The end side is locked to the second fixed pivot, the other end is locked to the first movable pivot, holds the lever handle in the unlocked position in an upright state, and is rotating from the unlocked position to the locked position. And a reversing spring that holds the lever handle in the locked position in a lying position; the first position just before the locked position on the way the lever handle rotates from the unlocked position to the locked position. When the straight line connecting the movable pivot and the second movable pivot crosses a reference line extending perpendicularly from the second movable pivot to the front surface of the door from below to above, the first and second clamp bodies in the locked position When receiving a rotational external force in a non-locking direction, the lever handle is pressed in the lying down direction via the second connecting link, and the external force is resisted by the reaction force. Door locking handle assembly.

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