JP2506511Y2 - Gate lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a push-pull type gate lock provided at an end of a door type gate.

[Conventional technology]

As a gate lock provided at the end of the hinged door,
BACKGROUND ART Lever type door locks that open the gate by lever operation and knob type gate locks that open the gate by knob operation are known.

Also, when opening and closing the gate with an umbrella and luggage in the rain, it is desirable that the gate be opened and closed by a simple operation of pushing or pulling the gate in the opening and closing direction. A door lock using an inversion latch is known (see Japanese Patent Laid-Open No. 63-277395).

[Problems to be solved by the device]

Gates are generally robust and have weather resistance, but have a simple hinge structure, and have a drawback that the size of dust is larger than that of indoor doors.

If the dust size is large, the pressure receiving area of the locking surface of the latch that locks the gate becomes small, and an excessive load is applied to the tip of the latch to damage the tip of the latch, or it becomes difficult to operate the lock.

The present invention is intended to solve the above-mentioned problems, and even if it is attached to a gate having a large size of dust, the gate lock does not cause wear or failure, it operates reliably, and the gate is opened in the opening direction. The present invention provides a gate lock that can be opened by a simple operation of pushing or pulling.

[Means for solving the problem]

In order to achieve the above object, the main gate lock has a thumb turn inside the gate and a cylinder lock outside the gate, and a push-pull plate is opened in the door opening direction on the outer surface of the lock case lock case that is attached to the end of the hinged door. A bifurcated stopper pivotally attached to the lock case, biased in a direction toward the opening toward the locking rod on the fixed side, and rotated by being pushed by the locking rod engaged in the opening when the door is closed. A first cam that locks and disengages the pushed bifurcated stopper by the rotation of the cam shaft is fixed to one end of the cam shaft rotatably supported in the lock case. A second cam is provided at the other end, and a lock plate movably provided in the lock case in the door closing direction and in a direction of approaching and separating from the second cam is urged in the door closing direction to approach the second cam. Lock plate in position The push-pull the first cam when the pressing of the second cam is pushed by the plate is adapted to release the engagement of the bifurcated type stopper.

[Action]

The operation of the gate lock configured as described above is as follows.

(Unlocked state) When the gate is closed, the locking rod on the fixed side engages with the opening of the bifurcated stopper, the bifurcated stopper rotates, and the pivoted bifurcated stopper is locked by the first cam. Is kept closed.

When this gate is pushed or pulled in the opening direction, the push-pull plate pushes the lock plate, the lock plate pushes the second cam, and the first cam coaxial with the second cam rotates to form a bifurcated type. Since the stopper is released, the bifurcated stopper can be rotated and the locking rod can be detached from the opening, and the door can be opened.

Then, the door is opened as it is due to the opening force applied to the gate.

(Locking) When the closed gate is locked by the thumb turn or the cylinder lock, the lever of the thumb turn or the cylinder lock rotates in the locking direction to push the lock plate to a position separated from the second cam.

Therefore, even if the push-pull plate is pushed in the door-opening direction, the lock plate does not rotate the second cam, so that the first cam still holds the forked stopper, and the forked portion is prevented from rotating by the first cam. Since the mold stopper holds the locking rod, the gate cannot be opened.

(Unlock) When the thumb turn or the cylinder lock is operated in the unlocking direction, the lever fixed to the thumb turn shaft or the cylinder lock pushes the lock plate to the position close to the second cam,
The lock plate comes to a position where the second cam can be pushed by the movement of the push-pull plate in the opening direction.

Therefore, when the push / pull plate pushes the lock plate in the door-opening direction, the second cam rotates, the first cam coaxial with the second cam rotates, releasing the high speed of the bifurcated stopper and releasing the locking rod. Becomes

〔Example〕

An embodiment of the present invention will be described with reference to the drawings.

3 is a front view of the gate lock A seen from outside the gate, FIG. 4 is a side view of FIG. 3, FIG. 1 is a sectional view taken along line XX of FIG. 3, and FIG. 2 is Y- of FIG. A Y sectional view, FIG. 5 shows a ZZ sectional view of FIG. 4, and FIG. 6 is a perspective view of main parts constituting the gate lock A.

As shown in FIG. 6, the lock case 1 is a door outside case 1a.
And a gate inner case 1b, and a cylinder lock 2 having a key hole 2a on the surface of the gate outer case 1a and a wide central portion 3a.
Is provided with a long hole 3 having a U-shaped handle 4 fixed thereto.

A thumb turn 5 is rotatably provided on the surface of the gate inner case 1b (see FIG. 4).

Sliding surfaces 6 are engraved on both outer surfaces of the lock case 1 (6th
(Refer to the drawing), the push-pull plate 7 formed in a tubular shape by the push plate 7a and the pull plate 7b is slidably fitted to the sliding surface 6.

The pushing plate 7a is provided with a hole 8 for avoiding interference with the cylinder lock 2, and one end of the hole 8 is provided with a pushing portion 9 that bends inward.

The pulling plate 7b is provided with a hole 10 into which the thumb turn 5 is inserted and a U-shaped handle 11, and both plates 7a and 7b are integrally fastened with a machine screw 12.

Inside the lock case 1, a lock plate 13 is slidably provided on the inner surface of the side wall of the gate inner case 1b (see FIGS. 1 and 6).

A cam pushing piece 14 is bent and extended at an end portion of the lock plate 13, and two L-shaped grooves 15 are provided at an intermediate portion.

The L-shaped groove 15 is a sliding groove 15 parallel to the arrow F that is the door opening direction.
It has a and a locking groove 15b extending in the direction perpendicular to the door opening (see FIG. 1), and the L-shaped groove 15 loosely fits into the pin 16 provided on the inner surface of the side wall of the gate inner case 1b.

Therefore, the lock plate 13 can slide in the door opening direction indicated by the arrow F and the door opening right angle direction indicated by the arrow G, and the spring 17 elastically mounted between the lock plate 13 and the gate inner case 1b causes the lock plate 13 to move in the arrow F direction. It is biased in the opposite direction.

One end 19a of the spring 19 is locked to an L-shaped spring support 18 that is bent and extended from the side surface of the lock plate 13, and the spring 19
The other end 19b is fixed to the gate inner case 1b (see FIG. 1).

Therefore, the lock plate 13 is urged to either one of the moving ends of the unlocked position shown by the solid line and the unlocked position 13 'shown by the alternate long and short dash line (see FIG. 1).

A mounting base 20 (sixth part) bent and extended on the lock plate 13
(See the drawing), a protrusion 21 is attached, a thumb turn shaft 22 having one end fixed with a thumb turn 5 has a lever 23 fixed at the other end, and a lever 23A having the same shape as the lever 23 at the end of the rotor of the cylinder lock 2 ( (Indicated by the dotted line in FIG. 6) is fixed.

When the lever 23 or the cylinder lock lever 23A rotates in the locking direction (clockwise in FIGS. 5 and 6), the lever 23 or 23A hits the protrusion 21 and the lock plate 13 locks in the direction opposite to the arrow G. When the lock plate 13 is pushed to the position and rotated counterclockwise, the lock plate 13 is pushed to the unlocked position in the arrow G direction.

A second cam 25 is fixed to one end of a cam shaft 24 rotatably supported by the inner gate case 1b (see FIGS. 1 and 6),
The second cam 25 is formed with a concave cam surface 26 that abuts the cam pushing piece 14 in the unlocked position.

Around the second cam 25, there is a shaft 27 on the inner wall of the inner case 1b.
Also, the spring locking pin 28 is provided, and one side of the spring 29 having the middle portion fitted and inserted into the shaft 27 is the spring locking pin 28 and the other side is the second cam.
The second cam 25 is locked to the pin 30 erected on the side of 25.
Is urged to rotate counterclockwise in FIG. 1, and a stopper 31 protruding from the outer peripheral surface of the second cam 25 has a gate inner case.
The cam surface 26 comes into contact with the stopper pin 32 provided in 1b, and the cam surface 26 comes close to the cam pushing piece 14.

A first cam 33 is fixed to the other end of the cam shaft 24 (see FIGS. 2 and 5), and below the first cam 33, there is a gate inner case.
A bifurcated stopper 35 is pivotally attached to a support shaft 34 fixed to 1b.

Around the bifurcated stopper 35, the shaft is attached to the inner case 1b.
36 is installed, the center part of the spring 37 is inserted into the shaft 36, and the spring
Both ends of 37 are mounted between the gate inner case 1b and the forked stopper 35.

Therefore, the bifurcated stopper 35 is biased in the counterclockwise direction in FIG. 2 and rotates to the position indicated by the alternate long and short dash line (see FIG. 2) in contact with the pin 38 provided on the inner case of the gate.

When the bifurcated stopper 35 rotates to the solid line position against the spring 37, the tip of the right arm 35a of the bifurcated stopper 35 contacts the first cam 33, and the first cam pushed by the tip of the right arm 35a. 33 rotates slightly counterclockwise to the angle 33 'indicated by the alternate long and short dash line in FIG. 2, the right arm 35a passes through the first cam 33, and the biasing force of the spring 29 (see FIG. 1) causes The right end portion of the first cam 33 that has returned to the solid line position of the old angle restrains the clockwise rotation of the bifurcated stopper 35.

When the bifurcated stopper 35 is at the position indicated by the alternate long and short dash line, the opening 39 of the bifurcated stopper 35 faces in the direction opposite to the door opening direction F.

As shown in FIGS. 9 and 10, a gate lock A is provided at the end of the gate B, and when the gate B is closed, the locking rod 40 is provided at a position facing the gate lock A on the fixed side. It is projected.

Then, when the door is closed, the locking rod 40 is inserted into the bifurcated stopper 35 through the opening 39 of the bifurcated stopper 35, and the bifurcated stopper 35 pushed by the locking rod 40 is rotated from the one-dot chain line position to the solid line position. The right arm 35a is locked to the first cam 33.

The inner case 1b is provided with two bottomed holes 41 at positions facing the elongated holes 3 of the outer case 1a, and a spring 42 inserted into the holes 41 has a wide central portion 3a of the elongated hole 3a. After that, point P of the pressing plate 7a shown in FIG. 6 is pressed.

Therefore, the push / pull plate 7 is pushed by the spring 42 to move in the direction opposite to the door opening direction F, and when the push / pull plate 7 is pushed in the door opening direction, the pushing portion 9 moves through the elongated hole 3 to the lock plate. Push 13 in the direction of arrow F, which is the opening direction.

The long screw 43 shown in FIG. 6 is for integrally assembling the gate outer case 1a and the gate inner case 1b.

Next, the operation of the gate lock configured as described above will be described.

(Unlocked state) The push / pull plate 7 is pushed by the spring 42 and moves in the direction opposite to the door opening direction F, and the push portion 9 of the push / pull plate 7 does not push the lock plate 13.

The thumb turn 5 is at an unlocking angle, the lever 23 fixed to the end of the thumb turn shaft 22 and the lever having a cylinder lock are both rotated counterclockwise in FIG. 5, and the lock plate 13 is shown in FIG. And in the unlocked position shown by the solid line in FIG.

When the lock plate 13 is in the unlocked position, the pin 16
Is in the sliding groove 15a, and when the push / pull plate 7 moves in the direction of the arrow F, which is the door opening direction, the cam pushing piece 14 of the lock plate 13 pushed by the push / pull plate 7 causes the second cam 25 to move. It is designed to push the cam surface.

The second cam 25 rotates counterclockwise in FIG. 1 until the stopper 31 hits the stopper pin 32 by the urging force of the spring 29, but when it is pushed by the cam pushing piece 14, it turns clockwise.

As shown in FIG. 2, the locking rod 40 is inserted into the bifurcated stopper 35, and the right arm 35a of the bifurcated stopper 35 in the solid line position in FIG. 2 is locked to the right end of the first cam 33. , The gate B is held in a closed state.

In the unlocked state, when the push / pull plate 7 is pushed or pulled in the door opening direction, the push / pull plate 7 is moved by the arrow F
Direction, the pusher 9 of the push / pull plate 7 is moved to the long hole 3
Push the lock plate 13 in the direction of arrow F through
While hitting the end of the sliding groove 15a, the second cam 25 pushed by the cam pushing piece 14 rotates clockwise in FIG. One cam 33
2 is rotated counterclockwise in FIG. 2 to the position 33 ′ and the first cam 33 is disengaged from the forked stopper 35.
The door lock A is rotated by the biasing force of the spring 37 and the door opening force to the position indicated by the alternate long and short dash line in FIG.
The door is opened further away.

That is, since the gate can be opened only by pushing or pulling the push-pull plate 7 in the opening direction, the door opening operation is extremely easy, and it is particularly convenient when the umbrella or luggage cannot be released in the rain.

When the gate B is closed, the locking rod 40 is inserted into the forked rod 35 through the opening 39 of the forked rod 35, and the forked rod 35 rotates from the one-dot chain line position in FIG. 2 to the solid line position. After hitting one cam 33, the first cam 33 rotates to the 33 ′ position and the forked stopper 35 moves to the solid line position, and then the first cam 33 coaxial with the second cam 25 biased by the spring 29.
Turns clockwise again and returns to the solid line position, and the first cam
The right end of 33 locks the right arm 35a of the bifurcated rod 35.

 Thus, the gate B is held in the closed state.

(Locking operation) When the key inserted into the thumb turn 5 inside the gate or the key hole 2a of the cylinder lock 2 outside the gate is rotated in the locking direction, it is fixed to the lever 23 fixed to the thumb turn shaft 22 or the rotor of the cylinder lock. The lever 23A pivots clockwise in FIGS. 5 and 6 to push the protrusion 21 to move the lock plate.
13 moves in the direction opposite to the arrow G direction, and the pin 16 slides in the groove 15.
It moves from a to the locking groove 15b.

Therefore, the push / pull plate 7 is opened in the direction of the arrow F,
Since the lock plate 13 does not move in the arrow F direction even if it is pushed in the direction, the cam pushing piece 14 does not push the second cam 25, and the first cam 33 coaxial with the second cam 25 is a bifurcated stopper.
35 remains locked, the locking rod 40 is restrained by the bifurcated stopper 35, and the gate B cannot be opened.

(Unlocking operation) When the thumb turn 5 on the inner side of the gate or the key inserted in the key hole 2a of the cylinder lock 2 on the outer side of the gate is rotated in the unlocking direction, the lever 23 or the lever on the cylinder lock side is shown in FIGS. 5 and 6. In the counterclockwise direction, the protrusion 21 is pushed in the direction of arrow G, the pin 16 moves to the sliding groove 15a, and the lock plate 13 can move in the direction of arrow F, which is the door opening direction. Return to.

FIG. 7 shows another embodiment of the present invention, in which the lever 23
Instead of, a two-armed lever 44 is used.

The lever 23 had to rotate almost 360 degrees to rotate from the locking angle to the unlocking angle.
According to the method, there is an advantage that the rotation angle is greatly reduced.

FIG. 8 shows the L-shaped groove 15 as a U-shaped groove 45.

In the case of the L-shaped groove 15, when the lock plate 13 is in the locked position, the pin 16 is moved to the locking groove, and therefore the movement in the door opening direction is impossible. However, the U-shaped groove 45 buffers the force of the push-pull plate 7 because the U-shaped groove 45 can move in the door opening direction even when the lock plate 13 is in the locked position. effective.

Even if the lock plate 13 in the locked position moves in the door opening direction, the cam pushing piece 14 is in a position where it does not hit the second cam 25, so that it cannot be unlocked.

[Effect of device]

Since the present invention is configured as described above,
The following effects are achieved.

(1) In the main gate lock, since the lock rod of the round bar lock is engaged with the forked stopper to lock the gate in the closed state, the length of the lock rod is adjusted even in the case of a gate having a large dust size. Only then, the locking rod is securely engaged with the bifurcated rod.

(2) The main gate lock can be opened simply by pushing and pulling the push-pull plate in the opening direction from outside or inside the gate, so the door opening operation is easy, especially when carrying luggage etc. in both hands. It is convenient because it has a door.

(3) The main gate lock can be applied to both a double-sided gate and a single-sided gate.

Further, since it is only necessary to provide a locking rod of a bar lock on the strike side of the gate lock, that is, at a position facing the gate lock when the door is closed, the structure on the strike side is simple and robust.

[Brief description of drawings]

1 to 10 show an embodiment of the present invention. FIG. 1 is a sectional view taken along the line XX of FIG. 3, FIG. 2 is a sectional view taken along the line YY of FIG. 3, and FIG. FIG. 4 is a front view as seen from the outside of the gate, FIG. 4 is a side view of FIG. 3, FIG. 5 is a sectional view taken along line ZZ of FIG. 4, and FIG. 6 is a perspective view of main parts forming a gate-like shape. FIG. 8 is a longitudinal sectional view showing another embodiment, FIG. 8 is a longitudinal sectional view showing another embodiment, FIG. 9 is a perspective view of a gate lock attached to a gate, and FIG. It is a figure. A ... Gate lock, B ... Gate, 1 ... Lock case, 1a ... Gate outside lock case, 1b ... Gate inside lock case, 2 ... Cylinder lock, 3 ... Long hole, 5 ... Thumb turn, 7 ... Push / pull plate, 9 ... Pushing part, 13 ... Lock plate, 14 ...
Cam pushing piece, 15 …… L-shaped groove, 15a …… Sliding groove, 15b ……
Locking groove, 16 …… pin, 17,19,21 …… projection, 22 …… thumbnail shaft, 25 …… second cam, 26 …… cam surface, 29 …… spring, 33 …… first cam, 34 …… Support shaft, 35 …… Bifurcated stopper, 37 …… Spring, 40 …… Locking rod, 42 …… Spring, 44
...... Lever, 45 …… U-shaped groove.

Claims (1)

(57) [Scope of utility model registration request] 1. A push-pull plate is movably provided in the opening direction on the outer surface of a lock case of a gate lock attached to the end of a hinged door provided with a thumb turn inside the gate and a cylinder lock outside the gate. A bifurcated stopper is provided that is pivotally attached to the case and is urged toward the fixed side locking rod in the direction toward the opening and is rotated by being pushed by the locking rod engaged in the opening when the door is closed. A first cam that engages and disengages the pushed bifurcated stopper by the rotation of the cam shaft is fixed to one end of a movably supported cam shaft, and a second cam is provided at the other end of the cam shaft. A lock plate movably provided in the lock case in a direction of closing the door and a direction of approaching and separating from the second cam in the direction of closing the door, and the lock plate at a position approaching the second cam is Push on the push-pull plate Has been gates lock the first cam when the pressing of the second cam is configured to release the engagement of the bifurcated type stopper.