JPS6144188B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gate lock used for sliding door type and accordion type gates.

Traditionally, many gates were swing-type, but due to the spread of automobiles in households and the rise in land prices, sliding-door and accordion-type gates, which occupy a small area, are now replacing the swing-type gates, which occupy a large land area. is gradually occupying the majority of However, compared to swing-type gates, there were almost no sliding or accordion-type gates with built-in locking mechanisms, and most were locked with padlocks.

The present invention has been made with attention to the above-mentioned points, and includes a sliding door type gate lock in which the hook bolt is always urged to the locked position by a spring in a state in which the hook portion protrudes to the outside, and the hook bolt is always urged to the locked position by a spring. When the hook bolt collides with the edge of the engagement hole of the catch, the hook bolt can be rotated independently of the slide frame as the unlocking operation member, so that the lock can be automatically closed. The slide frame is temporarily locked with a hook bolt, and the slide frame for unlocking is provided with a lock plate that engages and disengages from the case cover, and by operating the lock plate with a cylinder lock, the movement of the slide frame can be restrained or released. To provide a gate lock having a simple and robust structure, which allows locking and unlocking to be performed by using a button.

An embodiment of the present invention will be described below with reference to the drawings. Reference numeral A denotes a gate lock fixed to the end of a sliding door, and B denotes a seat fixed to a pillar that abuts the sliding door.

In the gate lock A, the hook portion 2' of the hook bolt 2 is inserted from the opening 1a into the front surface of the metal lock body 1.
protrudes from the hook bolt 2, and an engagement guide 3 for the catch B is protruded from the lower part of the hook bolt 2, and buffer plates 4, 4 made of a synthetic resin material are provided at the upper and lower ends.

Handles 5, 5 are provided on both sides of the lock body 1, unlocking operation levers 6, 6 are provided on the upper part of the handle 5, and a cylinder lock 7 is provided on the outer surface.

As shown in FIG. 2, the seat B has an engagement hole 8 for the hook bolt 2 and an insertion hole 9 for the engagement guide 3, and mounting holes 10 are formed above and below these holes.

FIG. 3 shows a state in which the unlocking operation lever 6 is pushed down by hand, and the hook bolt 2 is rotated upward and disengaged from the edge of the engagement hole 8 of the catch.

The hook bolt 2 is unlocked by moving the slide frame 11 using the unlocking operation lever 6.

That is, the slide frame 11 is formed with a through hole 11a for the operation rod 6a of the unlocking operation lever 6, and the operation rod 6a is inserted into the vertical hole 1 of the case cover 12.
2a, the slide frame 11, which is always urged upward by a spring 13, is pushed down by the unlock operation lever 6 with a stroke of the vertically long hole 12a, and the engagement hole of the slide frame 11 11b rotates the drive plate 15 formed with a gear provided on the support shaft 14 of the hook bolt 2, and at this time, the drive protrusion 15a of the drive plate 15 engages with the lower part of the hook bolt 2 to move the hook bolt 2 upward. Rotate to. Inside the hook bolt 2, a spring 16 is provided between the driven portion 2a and the lock body portion 1, and the hook bolt 2 is biased by this so as to maintain a stable protruding position. If the locking operation lever 6 is released and the slide frame 11 is raised, the hook bolt 2 is returned to its original position by the spring 16.

Therefore, when the door is closed, the arcuate end 2b of the hook bolt 2 touches the edge 8 of the engagement hole 8 of the catch seat B.
a and rotates upwards (FIG. 7), and then rotates downwards by the spring 16 after getting over the edge 8a and engages with the catch seat B.

A lock plate 17 is attached to the slide frame 11.
The lower engaging portion 17a and the upper engaging portion 17b are movably assembled with a support groove 11c, and the upper engaging portion 17b is connected to the engaging hole 12b of the case cover 12. It is movable between locking and releasing holes 12c formed on one side of the engaging hole 12b so as to reach the vertically elongated hole 12a.

By rotating the cam 7a in one direction using the cylinder lock 7, the lock plate is moved from the movement restricted state shown in FIGS. 4 and 8 C to the movement permitted state shown in FIGS. 5 and 8 D. It is possible to migrate
By rotating the cam 7a in the opposite direction, the movement can be made in the opposite direction.

As described above, the present invention has a hook bolt rotatably supported in a lock body, the hook part protruding from the opening of the lock body, and colliding with the edge of the engagement hole of the catch. A spring is provided between the lock body and the hook bolt to urge the hook bolt to the locked position, and a drive plate having a gear is rotatably supported adjacent to the hook bolt, and the drive plate is provided with a driving protrusion that engages with the hook bolt and drives it to the unlocked position when the drive plate rotates in the unlocking direction, and a slide frame driven by the unlocking operation lever is engaged with the drive plate; A lock plate is provided on the slide frame so that its engaging portion is movable, and the case cover is provided with a locking hole for the locking portion of the lock plate and a locking release hole continuous to the locking hole, and a locking hole is provided in the lock body. Since it is equipped with a cylinder lock that operates the lock plate, when the sliding gate is closed, the hook bolt, which is always in a protruding state, is operated independently from the unlocking operation member of the hook bolt, so that the lock plate is automatically operated. Temporary locking can be performed by engaging the strike plate, and permanent locking can be performed by operating the lock plate with a cylinder lock to restrain the slide frame as an unlocking operation member. Even when the sliding door is closed from the fully locked state with the lock, the hook bolt can be operated independently and the fully locked state can be immediately achieved.At this time, by engaging and disengaging the lock plate from the case cover. Because of this, it has the advantage that the entire mechanism can be constructed simply and robustly.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the gate lock, Figure 2 is a front view of the catch, Figure 3 is a perspective view showing the operating state of Figure 1, and Figures 4 to 7 are internal mechanisms showing each operating state. figure,
FIG. 8 is a perspective view of the main parts. A...Gate lock, B...Catch, 2...Hook bolt, 6...Unlock operation lever, 7...Cylinder lock,
11...Slide frame, 15...Drive plate.

Claims (1)

[Claims] 1. A hook bolt is rotatably supported in the lock body so that the hook protrudes outward from the opening of the lock body and rotates by colliding with the edge of the engagement hole of the catch. A spring is provided between the lock body and the hook bolt to urge the hook bolt to the locked position, and a drive plate having a gear is rotatably supported adjacent to the hook bolt. A driving protrusion that engages with the hook bolt and drives it to the unlocked position when rotated in the unlocking direction is provided, and the slide frame driven by the unlocking operation lever is engaged with the drive plate, and the lock plate is attached to the slide frame. A cylinder lock in which an engaging part is provided so as to be movable, a locking hole for the engaging part of a lock plate is provided in the case cover, and a locking release hole continuous to the locking hole is provided in the case cover, and the lock body is provided with a locking hole for operating the lock plate. A gate lock characterized by comprising: