JP5619639B2 - Push-pull tablets - Google Patents

Description

  The present invention relates to a push-pull lock that is unlocked by a push operation or a pull operation.

  In the prior art of the push-pull lock provided on the door, as disclosed in Patent Document 1, both end portions of the U-shaped movable member in front view with respect to the fixed portion are provided so as to be movable forward and backward and pushed in. The movable member is moved toward the exit side against the biasing force of the spring while the square core is densely penetrated into the square hole formed by the end face of the fixed portion and the U-shaped portion of the movable member. In this manner, the square core can be rotated forward and backward in a plan view, and a locking member that interlocks with the movement of the movable member on the withdrawal side is provided, and the latch is completely stored in the door by the interlocking of the locking member. The locked state with the locking member that is not used is changed to the unlocked state in which it is completely stored (claims).

  In the technique disclosed in Patent Document 2, the latch is slidable in the forward / backward direction and the tip is swingable around the vertical axis, and the operation handle is pushed or pulled. By retreating the lock piece that regulates the swing of the latch, the swing of the latch can be swung, and when the abutment with the strike of the door frame, the latch can be swung back while sliding. The door can be opened.

JP 2007-297788 A Japanese Patent Laid-Open No. 11-50707

  The techniques of Patent Documents 1 and 2 enable unlocking by pushing or pulling the operation handle, but only by retracting the locking member that restricted the forward / backward sliding or rotation of the latch, The latch itself is not retracted. Therefore, when the door is opened, the latch must be retracted and / or rotated by the strike of the door frame, and the latch head slides against the strike. There is open resistance, noise is generated, and durability is also a problem.

It is an object of the present invention to provide a push-pull lock that can solve such problems of the prior art.
SUMMARY OF THE INVENTION An object of the present invention is to provide a push-pull lock that can be unlocked by retreating a protruding latch member itself, regardless of whether the operation handle is pushed or pulled.

Specific means for solving the problems in the present invention are as follows.
First, a latch member 2 having a latch head 2B at the tip of the latch shaft 2A and supported by the lock case 3 so as to be slidable in the latch retracting / retracting direction, and biasing the latch member 2 in the latch protruding direction. A biasing member 4, a trigger member 6 that moves back and forth from the neutral position A by a swinging operation of the operation handle 5, and a swinging body 7 that swings when the trigger member 6 moves back and forth and moves the latch member 2 backward. Have
Between the trigger member 6 and the rocking body 7, push interlocking means 8 that rocks the rocking body 7 backward when the trigger member 6 moves forward, and rocking body 7 rocks backward when the trigger member 6 moves backward. Pulling interlocking means 9 is provided ,
An interlocking body 10 is provided between the latch member 2 and the rocking body 7 to move the latch member 2 backward by moving linearly backward by rocking the rocking body 7.
The interlocking body 10 is loosely fitted to the rear portion of the latch shaft 2A so as to be relatively movable, and the interlocking pulling portion 10a capable of pushing the receiving portion 2a at the rear end backward, and the trigger member 6 opposite to the latch shaft 2A. The linear portion 10b connected to the oscillating body 7 and arranged in parallel with the latch shaft 2A is formed in a substantially L shape .

Second, the rocking body 7 is disposed on the side of the latch shaft 2A, and a rocking shaft 11 is provided at the end of the trigger member 6 so as to be swingable back and forth, and the end opposite to the trigger member 6 is provided. The linear part 10b of the interlocking body 10 is connected to the part via a connecting pin 25,
The linear portion 10b and the connecting pin 25 of the interlocking body 10 are guided so as to be linearly movable backward with respect to the lock case 3 .

Third, the rocking body 7 has a first engaging portion 7a and a second engaging portion 7b across the rocking shaft 11, and the trigger member 6 is engaged with the first engaging portion 7a. A pushing portion 6a that pushes and a pulling portion 6b that engages and pulls with the second engagement portion 7b protrudes from the side surface toward the rocking body 7 and sandwiches the rocking shaft 11;
The first interlocking portion 7a and the pushing portion 6a constitute the pushing interlocking means 8, and the second engaging portion 7b and the pulling portion 6b constitute the pulling interlocking means 9. To do.

Fourth, the trigger member 6 is formed by bending a band plate into a U-shape, and when the trigger member 6 is urged rearward and moved rearward when the trigger member 6 is moved forward with respect to the lock case 3 . An urging means 12 for urging the front is provided.
Fifth, the lock case 3, a move forwards and backwards with respect to the trigger member 6 in the neutral position A, engages the trigger member 6 by advancing a locking member 14 for restricting movement before and after An actuating member 41 is provided for moving the lock member 14 forward and backward by linear movement back and forth .

According to the present invention, whether the operation handle is pushed or pulled, the protruding latch member itself can be moved backward to be unlocked, and the door can be opened without the resistance of the latch member.
That is, according to the first aspect of the present invention, regardless of whether the trigger member 6 is moved forward or backward by the push / pull operation of the operation handle 5, the oscillating body 7 is provided via either the push interlocking means 8 or the pull interlocking means 9. Is moved backward, and the latch member 2 can be moved backward.

In the invention according to claim 2, since the interlocking body 10 is moved linearly rearward by the swinging of the swinging body 7, the latch member 2 can be smoothly moved backward.
In the invention according to claim 3, since the pushing portion 6a and the pulling portion 6b of the trigger member 6 are engaged with the rocking body 7 with the rocking shaft 11 interposed therebetween, the push interlocking means for moving the rocking body 7 backward. 8 and the pull interlocking means 9 can be configured easily.

The invention according to claim 4 can assist the neutral position return of the trigger member 6 by the urging means 12.
According to claim 5 the invention can be directly performing movement regulation before and after the trigger member 6 with the locking member 14.

It is a section front view showing an embodiment of the present invention. FIG. It is a sectional front view showing the relation between a rocking body and a trigger. It is a perspective view inside a lock case. It is a cross-sectional top view of a latch. It is a cross-sectional top view of an interlocking body. It is a section top view of a trigger. It is a cross-sectional top view of a locking mechanism. It is a whole perspective view of a push pull lock. It is the whole push pull lock front view.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 10, the push-pull lock 1 is embedded in the door end side of the door 21, and the latch member 2 can be engaged with a strike 23 provided on the door frame 22.
The push-pull lock 1 includes a latch member 2 supported in a lock case 3 so as to be slidable in a latch retracting direction, an interlocking body 10 that moves the latch member 2 backward, and the interlocking body 10 is moved backward by swinging. An oscillating body 7 to be moved, and a trigger member 6 to oscillate backward regardless of whether the oscillating body 7 is moved forward or backward, and operation handles 5F and 5R for moving the trigger member 6 back and forth on the inner and outer surfaces of the door 21. Is provided.

  The lock case 3 has a substantially box-shaped case main body 3A and a case lid 3B that closes the opening of the case main body 3A, and a door together with the case main body 3A on the front side (door side) of the case main body 3A. A case front 24 screwed to the door tip 21 is disposed, and a latch opening 16 from which the latch head 2B protrudes is formed in the front wall of the case main body 3A and the case front 24.

1 and 5, the latch member 2 has a latch head 2B fixed to the tip of the latch shaft 2A, and the latch shaft 2A is supported by a guide portion 3a provided on the lock case 3 so as to be slidable in the axial direction. cage, and is biased by the latch projecting direction by setting digit biasing member 4 (a coil spring) between the guide portion 3a and a latch head 2B.
A large-diameter receiving portion 2a is formed at the rear end of the latch shaft 2A, and the interlocking pulling portion 10a of the interlocking body 10 is free to move relative to the rear portion of the latch shaft 2A between the receiving portion 2a and the guide portion 3a. The interlocking pulling portion 10a is in contact with the front surface of the receiving portion 2a via a washer and can be pushed backward.

  In FIGS. 1, 2, and 6, the interlocking body 10 has an interlocking pulling portion 10a and a linear portion 10b perpendicular to the interlocking pulling portion 10a, and is substantially L-shaped when viewed from the front. The linear portion 10b is parallel to and above the latch shaft 2A. Is arranged. A connecting pin 25 connected to the tip of the oscillator 7 and a long groove 26 parallel to the latch shaft 2A are formed in the straight portion 10b. The connecting pin 25 engages with a guide groove 3b formed in the lock case 3, The long groove 26 is engaged with a guide pin 27 provided in the lock case 3.

The interlocking body 10 can be linearly moved by the guide of the connecting pin 25 and the guide groove 3b, and the long groove 26 and the guide pin 27, and the interlocking pulling part 10a moves linearly backward in parallel with the latch shaft 2A, whereby the interlocking pulling portion 10a is moved to the latch shaft 2A. The latch member 2 is moved back and forth linearly and smoothly.
The oscillating body 7 is disposed at a front portion in the lock case 3 in a substantially vertical direction, a fitting hole 28 that engages with the connecting pin 25 is formed at the upper end of the tip, and the oscillating shaft 11 is provided at the lower portion. The swing shaft 11 is supported so as to swing back and forth with respect to the lock case 3. The fitting hole 28 is a fool hole having a diameter larger than that of the connecting pin 25, but may be a long hole or a groove that is long in the vertical direction, and the swing shaft 11 is separately formed even if it is integrally formed with the swing body 7. It may be formed.

In addition, a first engaging portion 7 a and a second engaging portion 7 b that engage with the trigger member 6 are formed on the swinging body 7 vertically with the swinging shaft 11 interposed therebetween.
1-4, 7 and 9, the trigger member 6 is formed by bending a band plate into a U-shape, an intermediate plate 31 is provided in the middle part, a trigger shaft 13 is provided in the rear part, A pair of front and rear guide projections 6d project from the left and right sides of the left and right side edges of the plate portion. This guide convex portion 6d is engaged with a longitudinal groove 3d formed on the lock case 3 to guide the linear movement of the trigger member 6 back and forth.

  The trigger member 6 is located in a state in which the U-shaped back portion (front side) straddles the swing shaft 11 and the guide middle plate portion 3 c in the front and rear directions of the middle plate 31. A pusher portion 6a that engages and pushes the first engaging portion 7a of the rocking body 7 by forward movement below the rocking shaft 11 is formed in the inner part, and rearward above the rocking shaft 11. A moving part 6b that engages with the second engaging part 7b by movement and pulls is formed. The pushing portion 6 a and the pulling portion 6 b are formed so as to protrude from the side edge of the trigger member 6 toward the swinging body 7.

The first engaging portion 7a and the pushing portion 6a constitute push interlocking means 8 that rocks the rocking body 7 backward by the forward movement of the trigger member 6, and the second engaging portion 7b and the pulling portion 6b. Pulling interlocking means 9 is configured to swing the rocking body 7 backward by the rearward movement of the trigger member 6.
The push interlocking means 8 and the pull interlocking means 9 cause the upper part of the swinging body 7 to swing backward about the swinging shaft 11 regardless of which of the trigger members 6 is moved in the front-rear direction. Move 2 straight back.

The distance from the center of the swing shaft 11 to the connecting pin 25 is set to be 3 to 6 times, preferably 4 to 5 times, the distance from the center of the swing shaft 11 to the pushing portion 6a and the pulling portion 6b. Thus, the latch member 2 can be largely retracted by a short movement of the trigger member 6.
Between the inner part of the trigger member 6 and the middle plate 31, the lock case 3 is urged to return the trigger member 6 from the position moved back and forth to the neutral position A (position shown in FIGS. 1 and 2). Means 12 are provided.

  The urging means 12 has a spring 32 and front and rear receivers 33F and 33R that receive both ends of the spring 32. The front and rear receivers 33F and 33R are formed of a cylindrical receiver that is fitted to the end of the spring 32, and from this. The shaft portion of the front receiving member 33F is inserted through the back portion of the trigger member 6 and is in contact with the front wall of the case main body 3A. The shaft portion of the rear receiving member 33R is the middle plate. 31 and is in contact with the guide middle plate portion 3c.

When the urging means 12 moves the trigger member 6 forward in order to swing the swinging body 7 backward via the push interlocking means 8, the shaft portion 33b of the front receiving member 33F comes into contact with the front wall of the case body 3A. Then, the rear receiving member 33R moves forward to compress the spring 32, and applies a rear biasing force to the trigger member 6 to enable the return to the neutral position A.
Further, when the biasing means 12 moves the trigger member 6 backward to swing the rocking body 7 backward via the pull interlocking means 9, the shaft portion 33b of the rear receiving tool 33R contacts the guide middle plate portion 3c. The front receiving member 33F moves rearward to compress the spring 32, and applies a forward biasing force to the trigger member 6 to enable the return to the neutral position A.

  Since the latch member 2 is always urged in the latch protruding direction by the urging member 4, the oscillating body 7 is always urged forward through the interlocking body 10, and the urging means 12 is provided. The trigger member 6 can be returned to the neutral position A at least, but since there is a rotational resistance of the operation handle 5, the biasing means 12 is provided so that both the trigger member 6 and the operation handle 5 can be reliably returned to the neutral state. It is preferable to do so.

A bifurcated engagement portion 5a of the operation handle 5 attached to the inner and outer surfaces of the door 21 is detachably engaged with the trigger shaft 13 of the trigger member 6.
1, 5, 7, 9, and 10, base covers 35F and 35R are respectively arranged on the inner and outer surfaces of the door 21 so as to face each other (the door inner surface side) and reach the inside of the lock case 3. Two long legs 35a are formed, the other (door outer surface side) base cover 35R is formed with two short legs 35b, and screws inserted from the two legs 35b are attached to the long legs 35a. The inner and outer base covers 35F and 35R and the lock case 3 are fixed to the door 21 by screwing.

The inner and outer base covers 35F and 35R are provided with pivot shafts 36, and operation handles 5F and 5R are pivotally supported on the pivot shafts 36, respectively.
Each operation handle 5F, 5R has a bifurcated engagement portion 5a that protrudes inward from the opening 37 formed in the lock case 3 and protrudes inward from the pivot shaft 36, and base covers 35F, 35R. An operation portion 5b that is located on the outer side and is manually pushed and pulled (push-pull operation) is formed.

The inner and outer operation handles 5F and 5R have substantially the same shape. However, when the inner and outer operation handles are symmetrically arranged, the bifurcated engagement portions 5a are shifted up and down, and the trigger shaft 6 of the trigger member 6 is shifted up and down and simultaneously engaged. doing.
Each of the operation handles 5F and 5R can be engaged with the trigger shaft 13 by inserting the bifurcated engagement portion 5a into the opening 37 of the lock case 3 from the outside of the door 21, and the inner and outer operation handles 5F, There is no mistake in mounting 5R.

1 to 6 and 8 to 10, the push-pull lock 1 is provided with a lock mechanism 40. The lock mechanism 40 includes a lock member 14 disposed at a rear portion in the lock case 3, an operation member 41 disposed at an upper portion in the lock case 3, and inner and outer surfaces of the door 21 to operate the operation member 41. There are provided inner operating means 42F and outer operating means 42R.
The locking member 14 is movable up and down by engaging the protruding sliding guide portion 14a with the vertically elongated hole 3e of the lock case 3, and a bifurcated locking portion 14b is formed at the lower portion thereof, and the trigger member A locking portion 6c formed at the upper part of the rear end of 6 is detachable from above.

  The locking portion 6c of the trigger member 6 is formed by bending the upper end of the rear end of the belt plate in an L-shape upward, and when the trigger member 6 is in the neutral position A, the trigger member 6 is When the lock member 14 that can move forward and backward is advanced and the bifurcated locking portion 14b is engaged with the locking portion 6c, the trigger member 6 is restricted from moving back and forth and is locked at the neutral position A. That is, the lock member 14 descends and engages with the engaging portion 6c to bring the trigger member 6 into a locked state, and rises and releases the engagement with the engaging portion 6c to unlock the trigger member 6 To.

An interlocking pin 44 is provided in the upper part of the operating member 41, and an inclined groove 41 a of the operating member 41 is engaged with the interlocking pin 44. The actuating member 41 can be moved back and forth by engaging the protruding guide portion 41b with the laterally long hole 3f of the lock case 3, and a return spring 45 provided between the front portion of the lock case 3 and the actuating member 41. It is energized backward.
An inclined groove 41a and an engaging recess 41c on the front side thereof are formed in the rear portion of the actuating member 41. The inclined groove 41a is inclined downward at an angle of approximately 45 degrees from the front side to the rear side. And a cam structure that pushes the lock member 14 downward via the interlocking pin 44 by the forward movement of the actuating member 41 against the return spring 45.

Working pieces 46F and 46R of inner working means 42F and outer working means 42R for moving the working member 41 back and forth are engaged with the engaging recess 41c.
8-10, the inner working means 42F is supported by a mounting seat 47F attached to the inner surface of the door 21 so that an inner working body 48F and a working piece 46F can be rotated via a vertical axis 49, and the working piece 46F. Is inserted into the engaging recess 41 c and engaged with the operating member 41.

In the plan view of FIG. 8, when the inner working body 48F is turned counterclockwise with fingers, the actuating member 41 is locked (moved forward) via the working piece 46F, and the inner working body 48F is moved clockwise. When the turning operation is performed, the actuating member 41 is unlocked (rearly moved) via the actuating piece 46F.
As shown in FIGS. 1, 3, and 8, the outer operating means 42 </ b> R is supported in a mounting seat 47 </ b> R attached to the outer surface of the door 21 so that the cam member 50 can rotate about the horizontal axis. A pin-shaped operating piece 46R is provided on the inner surface (the surface on the side of the lock case 3) at a position displaced from the center of rotation, and the tip of the operating piece 46R is inserted into the engaging recess 41c to engage with the operating member 41. doing. A single groove 51 is formed on the outer surface of the cam member 50 to display a locked state and an unlocked state, and the cam member 50 can be rotated by a minus driver or the like.

  The inner operating means 42F and the outer operating means 42R operate integrally. When the operating member 41 is locked (forwardly moved) by the inner operating means 42F in the front view of FIGS. When the cam member 50 is rotated clockwise through the operation piece 41 and the operation member 41 is unlocked (rearly moved), the cam member 50 is rotated counterclockwise through the operation piece 46R.

The mounting seats 47F and 47R have two leg portions 47a opposite to each other, and are screwed with the door 21 sandwiched by screws inserted into the leg portions 47a. The leg portions 47a of the mounting seats 47F and 47R are engaged with the upper portion of the lock case 3 and contribute to the attachment of the lock case 3.
In the present invention, the shape of each member and the positional relationship between the front, rear, left, and right in the embodiment are best configured as shown in FIGS. However, it is not limited to the said embodiment, A member, a structure can be variously deformed, and a combination can also be changed.

For example, the interlocking body 10 is omitted, the swinging body 7 is disposed at the rear portion of the latch shaft 2A, and the top of the swinging body 7 is formed in a bifurcated shape so as to contact the front surface of the large-diameter receiving portion 2a of the latch shaft 2A. The latch shaft 2 </ b> A may be directly moved rearward by the backward swing of the swing body 7.
The operation handles 5F, 5R, the inner operation means 42F, and the outer operation means 42R, which are arranged on the inner and outer surfaces of the door 21, may be provided with only one of the inside and the outside.

The lock member 14 of the lock mechanism 40 moves the trigger member 6 forward from the neutral position A and lowers the latch member 2 to the lock position, so that the front side of the bifurcated locking portion 14b is engaged with the locking portion 6c. And the latch member 2 may be used so as to be held in the retracted state.
Further, the push-pull lock 1 may not include the lock mechanism 40 including the lock member 14.

DESCRIPTION OF SYMBOLS 1 Push pull lock 2 Latch member 2A Latch shaft 2B Latch head 2a Receiving part 3 Lock case 4 Energizing member 5 Operation handle 5a Bifurcated engagement part 6 Trigger member 6a Pushing part 6b Pulling part 7 Oscillator 7a 1st engagement part 7b Second engaging portion 8 Push interlocking means 9 Pull interlocking means 10 Interlocking body 11 Oscillating shaft 12 Biasing means 13 Trigger shaft 14 Lock member 21 Door 22 Door frame

Claims (5)

A latch member (2) having a latch head (2B) at the tip of the latch shaft (2A) and supported so as to be slidable in the latching / retracting direction in the lock case (3), and latching the latch member (2) A biasing member (4) that biases in the direction, a trigger member (6) that moves back and forth from the neutral position (A) by the swinging motion of the operation handle (5), and a swinging movement that occurs when the trigger member (6) moves back and forth. An oscillating body (7) that moves and moves the latch member (2) backward,
Between the trigger member (6) and the oscillating body (7), push interlocking means (8) for causing the oscillating body (7) to oscillate backward by the forward movement of the trigger member (6), and the trigger member (6) of which the oscillator (7) by rearward movement pull interlocking means (9) to the rear swing and is provided,
An interlocking body (10) is provided between the latch member (2) and the oscillating body (7). The interlocking body (10) moves backward linearly by the oscillation of the oscillating body (7) and moves the latch member (2) backward. And
The interlocking body (10) is loosely fitted to the rear part of the latch shaft (2A) so as to be relatively movable, and the interlocking pulling part (10a) capable of pushing the rear end receiving part (2a) backward, and the latch shaft (2A) ), The linear portion (10b) connected to the rocking body (7) on the opposite side of the trigger member (6) and arranged in parallel with the latch shaft (2A) is formed in a substantially L shape . Push-pull tablet characterized by The oscillating body (7) is arranged on the side of the latch shaft (2A), and an oscillating shaft (11) is provided at the end on the trigger member (6) side so as to be able to oscillate back and forth. ) Is connected to the end opposite to the straight portion (10b) of the interlocking body (10) via the connecting pin (25),
2. The push-pull according to claim 1, wherein the linear portion (10 b) and the connecting pin (25) of the interlocking body (10) are guided so as to be linearly movable backward with respect to the lock case (3). Tablets. The oscillating body (7) has a first engaging portion (7a) and a second engaging portion (7b) across the oscillating shaft (11), and the trigger member (6) is a first engaging portion. A pushing portion (6a) that engages and pushes with (7a) and a pulling portion (6b) that engages and pulls with the second engaging portion (7b) protrude from the side surface toward the oscillating body (7). And sandwiching the swing shaft (11),
The first interlocking portion (7a) and the pushing portion (6a) constitute the push interlocking means (8), and the second engaging portion (7b) and the pulling portion (6b) constitute the pulling interlocking means. The push-pull lock according to claim 1 or 2, wherein (9) is configured. The trigger member (6) is formed by bending a band plate into a U-shape, and when the trigger member (6) is moved forward with respect to the lock case (3) , the trigger member (6) is urged backward and moved backward. The push-pull lock according to any one of claims 1 to 3, further comprising an urging means (12) for urging forward when the urging mechanism is pressed. The lock case (3) is movable forward and backward with respect to the trigger member (6) at the neutral position (A), and is engaged with the trigger member (6) by advancing to restrict the back-and-forth movement. The lock member (14) and an actuating member (41) for moving the lock member (14) forward and backward by linear movement in the front-rear direction are provided. Push-pull tablet.

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