JPH0421793B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lock of a type in which a dead bolt is retracted.

[Conventional technology]

A lock that retracts a latch head by operating an operating member such as a lever or a grip ball, and a lock that retracts and retracts a dead bolt using only a thumb turn or a thumb turn and a key inserted into a cylinder lock are installed in parallel on the door.

However, as shown in FIG. 14, if the door stop 2' provided on the vertical stile 1' of the door frame protrudes too much, when the operating member 3' is gripped, the door stop 2' will not come into contact with the hand. Therefore, the operating member 3' cannot be operated.

Of course, the same applies to thumb turns and keys.

Therefore, the mounting position of the lock has been changed so that the door stopper cannot be touched with the hand.

[Problem that the invention seeks to solve]

It is already known that when the lock is installed in a different position (to the opposite side of the opening/closing edge of the door), the latch head should be adjusted so that the protrusion of the latch head is in its normal state before being installed, but this cannot be adjusted in the case of a dead bolt. Therefore, the amount of protrusion of the dead bolt was reduced, which caused a safety problem.

Further, from the viewpoint of safety, if the position of the lock with the dead bolt is not changed, the axes of the locks located above and below may become uneven, resulting in an unsightly problem.

[Means for solving problems]

In order to solve the above problems, this invention
An attached lock case, a dead bolt fitted into the lock case so as to be freely retractable, a guide plate protruding from the end of the lock case, and a dead bolt fitted so as to be movable in and out of the guide plate with the connecting side facing downward. A groove-shaped slider, a pair of parallel connecting plates whose tips are rotatably connected to the end of the dead bolt, and which are installed inside this guide plate and penetrated through the end of the lock case, and between these connecting plates. At the same time, a rocking plate whose lower end is rotatably attached to both side plates of the slider via a shaft is inserted, and the mounting shaft of the rocking plate is passed through the guide plate, and the shaft and the slider are connected in the front-rear direction. A window provided so as not to obstruct the slider, a square hole provided in the shaft so that only the thumb turn or the rotation angle shaft of the thumb turn and cylinder lock can be fitted into the shaft, and the slider can be inserted into the guide plate in two places in the front and rear directions or A fixing device provided to fix at two or more predetermined positions,
A long hole is provided on the upper end of the connecting plate so that both ends face in the front-rear direction, and a long hole is provided on the upper end of the rocking plate with both ends located above and below, and a pin is inserted through both matching long holes to connect. A recess is provided on the upper edge of the elongated hole of the plate so that the end of the pin fits into the recess with a spacing equal to the interval between the fixed positions, and the connecting plate is provided with rotational properties to prevent the pin from escaping from the recess. It consists of a spring and a notch provided at both ends of the upper edge of the side plate of the slider so that the end of the pin fits into it when the dead bolt is extended and retracted.

[Effect]

When the swing plate is rotated in one direction along with the shaft by a thumb turn or a rotation operation of a key inserted into a cylinder lock, the connecting plate is moved forward via a pin fitted and locked in a recess, so that the dead bolt protrudes.

Furthermore, when the rocking plate is rotated in the other direction together with the shaft, the connecting plate is retracted via the pin fitted and locked in the recess, so that the dead bolt retracts.

Next, when changing the position of the shaft in the opposite direction of the lock case, pull up the end of the connecting plate to allow the pin to escape from the recess into the elongated hole, and then move the slider backward while moving the connecting plate forward. A pin is fitted into a recess at a position equal to the amount, and the recess is fitted and engaged with the pin.

After that, after releasing the fixation by the fixation device,
The slider is slid in the opposite direction of the lock case, stopped at a position equal to the amount of advance of the connecting plate, and fixed by a fixing device.

When operated as described above, the connecting plate is advanced by the amount by which the shaft position is changed, so the amount of protrusion of the dead bolt is always constant.

〔Example〕

In the figure, 1 is an attachment lock case.

The above-mentioned mounting lock case 1 is composed of a cylindrical body 2 and a screw plate 3 fixed to the tip of the cylindrical body 2.

4 is a dead bolt fitted into the lock case 1 so as to be freely retractable.

Reference numeral 5 denotes a guide plate protruding from the end of the mounting lock case 1, and on the outside of this guide plate 5 there is a groove-shaped slider 6 with the connecting side facing downward.
is fitted so that it can slide forward and backward.

The two guide plates 5 mentioned above are arranged in parallel with a predetermined interval.

Reference numeral 7 designates a pair of parallel connecting plates located inside the guide plate 5 and passed through the end of the mounting lock case 1. The tip of the connecting plate 7 connects a horizontal pin 8 to the end of the dead bolt 4. They are rotatably connected through.

A rocking plate 9 is inserted between the connecting plates 7 and rotatably attached at its lower end to both side plates 18, 18 of the slider 6 via a shaft 10.

11 passes through the shaft 10, and the shaft 10
This window is provided so as not to obstruct the back and forth sliding of the slider 6 and the slider 6.

Reference numeral 12 denotes a square hole provided in the shaft 10 so that the rotation angle shaft A of only the thumb turn or the thumb turn and the cylinder lock is fitted and locked.

A fixing device 13 is provided to fix the slider 6 to the guide plate 5 at two or more predetermined positions in the front and rear directions.

The above-mentioned fixing device 13 has through holes 14, 15, 16, 17 at the front and rear sides of the window 11 of the guide plate 5 and at the rear and rear sides, as shown in FIGS. 1 to 9.
Also, through holes 1 are provided at both ends of both side walls 18 of the slider 6.
9 and 20 are provided, and when the slider 6 is moved forward, the through holes 19 and 16 are aligned with the through holes 14 and 20, respectively, and the two screws E inserted into the inner plate C of the door B are inserted. One side into through holes 14 and 19,
After passing the remaining one through the through holes 16 and 20, screw the screw E into the outer plate D, and when the slider 6 is moved back, the through hole 19 will be inserted into the through hole 15, and the through hole 20 will be inserted into the through hole 17, respectively. After matching, the screw E was screwed in by the same method as above, but the screw E was screwed in from the slider 6 to the guide plate 5.
It is also possible to adopt a fixing method using screws screwed in.

In addition, as shown in FIGS. 11 to 13, a set of three through holes 14, 15, 21 are provided on the front side, and three through holes 14, 15, 21 are provided on the rear side.
In the case where a set of through holes 16, 17, 22 are provided and the screws E are passed through the through holes 14, 22 on the front side as shown in FIG. , 16, and there are cases where the screw E is passed through the through holes 21, 17 as shown in FIG.

Reference numeral 23 denotes a long hole provided at the upper edge of the distal end of the connecting plate 7 so that both ends thereof face in the front-back direction. and both elongated holes 23 and 24
A pin 25 is inserted through.

Further, the fixing device 13 is provided at the upper edge of the elongated hole 23.
Recesses 26 into which the ends of the pins 25 fit are provided at intervals equal to the intervals between the fixed positions.

Two recesses 26 are provided at the front and rear when the slider 6 is fixed at two locations, and three recesses 26 are provided at the front and rear when the slider 6 is fixed at three locations.

Furthermore, notches 27 and 28 are provided at both ends of the upper edge of the side plates 18 of the slider 6, into which the ends of the pins 25 are fitted when the dead bolt 4 is extended and retracted.

The notches 27 and 28 are designed to stop the dead bolt 4 from sliding when the pin 25 is inserted.

Reference numeral 29 denotes a spring that gives the connecting plate 7 the ability to rotate so as to lower the end of the connecting plate 7. 30 is a fingertip locking piece provided at the end of both connecting plates 7.
31 is a leaf spring that prevents the shaft 10 from rotating naturally when the dead bolt 4 is retracted.

The lock according to the present invention has the above configuration,
When the square shaft A is rotated by the thumb turn F or the key inserted into the cylinder lock G when locking, the swing plate 9 is rotated counterclockwise in FIG. 3 along with the shaft 10, so that the dead bolt is 4 and lock it as shown in FIG.

In addition, when unlocking, the swing plate 9 is moved to the sixth position along with the shaft 10.
When rotated clockwise, the connecting plate 7 is moved backward, so that the dead bolt 4 is retracted and unlocked as shown in FIG.

Shaft 1 is placed on the lock case 1 side shown in Figures 1 to 3.
0 is close to 0, or the door stop installed on the stile of the door frame protrudes so much that the hand holding the key or thumb turn touches the door stop and it is difficult to lock or unlock the door, first screw E. is pulled out to remove the lock case 1, and then the end of the connecting plate 7 is pulled up to allow the pin 25 to escape from the recess 26 on the front side as shown by the chain line in FIG. The pin 25 is fitted into the recess 26 (as shown in FIG. 7), and then the terminal end of the connecting plate 7 is released and the pin 25 is inserted into the recess 26.

The slider 6 is then moved back (as shown in FIG. 8).

As a result, the position of the shaft 10 moves in the opposite direction of the lock case 1.

After adjusting as described above, the lock case 1 is fitted into the door B and fixed by the fixing device 13.

〔effect〕

As described above, according to the lock according to the present invention,
If the door stop installed on the vertical stile of the door frame protrudes so much that it is difficult to touch the door stop and lock and unlock it, it is necessary to change the engagement position between the recess and the pin and the slider. Since the position of the slide and handle shaft (rotated by thumb turn or cylinder lock) can be changed, the position of the shaft can be changed while keeping the amount of dead bolt protrusion constant.

[Brief explanation of drawings]

The drawing shows the lock according to the present invention.
The figure is a perspective view, Figures 2 and 3 are partially cutaway side views of the same, Figure 4 is a partially cutaway plan view of the same, Figure 5 is a rear view of the same, and Figure 6 is a part of the same with the dead bolt protruding. Fig. 7 is a partially cutaway side view with the pin disengaged, Fig. 8 is a partially cutaway side view with the pin in the adjusted state, Fig. 9 is a side view of the same as above, Fig. 10 is a side view of the door with the pin disengaged. 11 to 13 are side views showing other embodiments of the fixing device, and FIG. 14 is a conventional plan view. 1... Mounting lock case, 2... Cylindrical body, 3... Plate, 4... Dead bolt, 5... Guide plate, 6
...Slider, 6'...Side plate, 7...Connecting plate, 8...Pin,
9... Rocking plate, 10... Shaft, 11... Window, 12... Square hole,
13... Fixing device, 14, 15, 16, 17... Through hole, 18... Side wall, 19, 20... Through hole, 21, 22
...through hole, 23...long hole, 24...long hole, 25...pin,
26... recess, 27... notch.

Claims (1)

[Claims] 1 An attached lock case, a dead bolt fitted into the lock case so as to be freely retractable, a guide plate protruding from the end of the lock case, and a dead bolt fitted into the guide plate so as to be movable in and out of the lock case with the connecting side facing downwards. a groove-shaped slider, a pair of parallel connecting plates that are built into the inside of this guide plate and pass through the end of the lock case, and whose tips are rotatably connected to the end of the dead bolt, and this connecting plate. A rocking plate is inserted between the slider and has its lower end rotatably attached to both side plates of the slider via a shaft, and the mounting shaft of the rocking plate is passed through the guide plate, and the shaft and the slider are connected in the front-rear direction. A window provided so as not to obstruct the slide of the slider, a square hole provided in the shaft so that the rotation angle shaft of only the thumb turn or the thumb turn and the cylinder lock can be fitted into the shaft, and the slider can be inserted into the guide plate in two places in the front and rear directions. is a fixing device installed to fix it in two or more predetermined positions;
A long hole is provided on the upper end of the connecting plate so that both ends face in the front-rear direction, and a long hole is provided on the upper end of the rocking plate with both ends located above and below, and a pin is inserted through both matching long holes to connect. A recess is provided on the upper edge of the elongated hole of the plate so that the end of the pin fits into the recess with a spacing equal to the interval between the fixed positions, and the connecting plate is provided with rotational properties to prevent the pin from escaping from the recess. A lock consisting of a spring and a notch provided at both ends of the upper edge of the side plate of the slider so that the end of the pin fits into it when the dead bolt is extended and retracted.