JPS5828110Y2 - lock - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a lock in which when the handle is grasped, the piece that engages with the thumb is rotated to retract the lock piece.

Conventionally, in this type of lock, the lock piece is prevented from sinking in by rotating the lever installed on the indoor side, so when releasing the lock to prevent the lock from sinking, it is necessary to release the lock each time. You have to rotate the shot.

For this reason, there was a drawback that it was very time-consuming.

In view of the above-mentioned points, the object of this invention is to provide a lock in which the lock that prevents the lock rod from being retracted is automatically released when the handle is grasped and the piece is rotated.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

In the figure, boxes 2 and 2' having pulls 1 and 1' on the lower side are fixed to positions facing the interior and exterior surfaces of door A.

Through-holes 3, 3' are provided in the lower part of the front wall of the boxes 2, 2', and the front and back surfaces of each through-hole pass through, and each through-hole 3, 3' has a pin whose tip passes through and whose axis is horizontal. 4゜4'
There are provided swinging pieces 5, 5' rotatably supported by.

Furthermore, rotatable pivot shafts 6, 6' whose opposing ends fit into the door A from inside the boxes 2, 2' are provided, and the swing pieces 5, 6' are provided inside the boxes 2, 2'. Rotation transmission devices 7, 7 for converting the vertical movement caused by the lifting and lowering of the tip of the shaft 5' into rotational movement, and driving the rotation shafts 6, 6' in the forward and reverse directions.
' is included.

Further, a rotatable shaft member 9 is horizontally suspended between the boxes 2, 2' with the end tab 8 protruding toward the indoor side above the rotation shafts 6, 6', and the box 2' The above-mentioned shaft member 9 located inside has a rotation transmission bag N7 when the tip is lowered.
A plate piece 10 is fixed, which prevents the lifting movement of ' from rising.

The rotation shaft 6 supports the lower end of a swing plate 11 whose upper end swings from one side to the other when the tip of the swing piece 5 is raised.

Further, the distal end side of the plate-like body 12 whose distal end faces downward when the distal end of the plate piece 10 faces downward is fixed to the shaft member 9 in the box 2, and the distal end of the plate-like body 12 is attached to the shaft member 9. Moving plate 1
A protrusion 13 is provided that engages with the swing plate 11 when the swing plate 1 swings in the other direction.

Furthermore, the above-mentioned shaft 9 is configured such that the upper and lower side edges of the plate piece 10 and the plate-like body 12 are brought into contact with the protrusion 14 protruding into the boxes 2 and 2', so that the shaft member 9 can be rotated in the normal or reverse direction. The angle is restricted to 90°.

The above-mentioned rotation transmission devices 7, 7' are connected to a guide channel 15 which is superimposed on the inner surface of the boxes 2, 2' as shown in FIG.
and a slider 16 fitted so that its lower edge abuts the top edge of the tip of the swing pieces 5, 5' and moves up and down within the channel member 15.
, a longitudinal elongated hole 17 provided in the slider 16 , a notch 18 provided laterally from the middle of one side edge of the elongated hole 17 , and a channel member 15 extending through the elongated hole 17 . a pin 19 protruding from the shaft, a disc 21 provided at the end of the rotation shaft 6.6' so as to rotate about the pin 19, and a grooved member 15.
It consists of a vertical arcuate hole 20 provided in a concentric arc shape with the pin 19 as the center, and a pin 22 provided so as to protrude from one peripheral edge of the disk 21 and fit into the notch 18 and the arcuate hole 20. When the slider 16 rises, the rotation shafts 6, 6' are driven via the pin 22.

Further, the lock piece 23 is retracted from the vertical frame surface of the door A by driving the rotating shafts 6, 6' in the forward and reverse directions, but the structure is such that the lock piece 23 is driven by a spring as shown in FIG. The pivot shaft 6 of the protruding piece 24 at the end of the lock piece 23, which provides protrusion;
The claw of the rotating body 26 has a square hole 25 into which the 6' is fitted and secured.
(not shown) is engaged.

In the figure, reference numeral 27 denotes a holding plate fixed to the boxes 2, 2' by screws 28, and the grooved member 15 is fixed together by this holding plate 27.

29 is a spring that provides the slider 16 with a downward return property; 3;
Reference numeral 0 denotes a through hole provided in the channel member 15, into which the tips of the swinging pieces 5, 5' are fitted.

31 is a spring that prevents the plate piece 10 and the plate-shaped body 12 from rotating naturally.

In addition, by exposing the end face of the shaft member 9 on the surface of the box 2' and providing a groove 32 in this end face as shown in the figure, the shaft member 9 can be rotated from the outside with a screwdriver or the like. I can do it.

The lock according to this invention has the above-mentioned structure, and its operation will be explained next. When the door A is closed, the lock piece 23 is fitted into and locked in a hole (not shown) in the vertical stile of the door frame. To retract the slider 16, press down the end of the swinging piece 5' with your thumb at the same time as grasping the handle 1', the slider 16 will rise, the notch 18 will raise the pin 22, and the arcuate hole 20 The pin 22 moves from the lower end to the upper end, and the rotating shaft 6' is driven in one direction together with the disc 21.

Therefore, the rotating body 26 is rotated to retract the lock piece 23.

When retracting the lock piece 23 from the indoor side, the end of the swing piece 5 may be pushed down.

After the door A is opened as the lock piece 23 is retracted, when the push-down of the end of the swing piece 5' is released, the spring 2
Since the slider 16 is lowered by the action 9, the rotary wheel 6' is reversed, and the lock piece 23 is released from retraction.

Next, when the door A is closed, rotate the shaft member 9 in one direction (third clockwise direction) according to photograph 8 so that the downwardly facing tip of the plate piece 10 faces the upper edge of the slider 16. (At this time, the protrusion 13 of the plate-like body 12 that rotates together faces the side edge of the swing plate 11), thereby preventing the slider 16 from rising.

Therefore, even if you try to push down the end of the swing piece 5',
It is possible to prevent the lock piece 23 from sinking without falling.

In other words, it is in a locked state.

Next, to release the above-mentioned lock, grab the handle 1 and at the same time push down the end of the swing piece 5, the slider 16 inside the box 2 will rise and have the pivot shaft 6 as described above. The disk 21 rotates clockwise in FIG.

At this time, the rocking plate 11 that rotates together comes into contact with the pin 13 and rotates the shaft member 9 in the same direction via the plate-like body 12, so that the tips of the plate pieces 10 that rotate together rise.

Therefore, the lock piece 23 can be retracted at the same time as the prevention of the rise of the slider 16 in the box 2' is released.

As described above, according to the lock according to this invention, when the end of the swinging piece is pushed down with the fingertip at the same time as grasping the handle, the rotation transmission device converts the upward movement into rotational movement, and
The lock piece is retracted by driving the rotating shaft, but the end part of the lock protrudes toward the indoor side, and a rotatable shaft member is horizontally suspended between both boxes, and the lock piece is inserted into the indoor side. The lower end of the rocking plate, which swings from one side to the other as the rotating wheel rotates, is supported at the end of the rotating shaft, and the shaft member located inside the outdoor box supports the lower end of the rocking plate, which swings from one side to the other as the rotating wheel rotates. When the shaft material is rotated,
The end of the plate that prevents the vertical movement of the rotation transmission device from rising is fixed with the tip facing downward, and when the tip of the plate is directed downward to the shaft member located inside the indoor box, the tip will be directed downward. In addition to fixing the end of the plate-like body, this plate-like body is provided with a protrusion that engages with the rocking plate when the rocking plate starts in the other direction. By rotating the plate, even if an attempt is made to push down the swinging piece from the outdoor surface, the plate piece prevents the vertical movement of the rotation transmission device from rising.

This prevents unlocking from outside.

Furthermore, when the end of the swinging piece is pushed down on the indoor side, the engagement between the swinging plate and the pin causes the shaft member to return and rotate (so that the tip of the plate rises) via the plate-like body. The lock can be released without having to rotate the shaft member back.

This licking can save you the trouble of manually removing locks.

[Brief explanation of drawings]

Fig. 1 is a front view of the indoor handle according to this invention, Fig. 2 is an enlarged rear view showing the main parts of the above, Fig. 3 is a rear view of the outdoor box, Fig. 4 is an enlarged vertical side view, FIG. 5 is an exploded perspective view of the rotation transmission device. A...Door, 1, 1'...Handle, 2
, 2'...Box, 3.3'...
Through hole, 4.4'...Pin, 5,5'...
・Swivel piece, 6゜6'...Rotation axis, 7,7'...
...Rotation transmission device, 8...Photography, 9...
...Shaft material, 10...Plate piece, 11...
Rocking plate, 12... plate-shaped body, 13... protrusion, 14... protrusion, 15... channel member,
16...Slider, 17...Long hole,
18...notch, 19...pin, 20
......Arc-shaped hole, 21...Disc, 22...
...Pin, 23...Lock piece, 24...
・Protruding piece, 25... Square hole, 26... Rotating body, 27... Holding plate, 28... Screw,
29...Spring, 30...Through hole, 31.
·····Spring.

Claims (1)

[Scope of utility model registration request] A box that has a handle that holds the door in place and is fixed in a facing manner; a rocking piece whose tip fits into the box and is supported by a pin whose axis is horizontal; and a box whose opposing tip fits into the door. A rotation shaft supported in the box, a rotation transmission device built into the box so that the vertical movement caused by the lifting and lowering of the tip of the rocking piece is replaced with rotational movement, and the rotation shaft is driven in the forward and reverse directions. As the shaft rotates, the lock piece is retracted from the vertical frame surface of the door, and the end of the lock protrudes toward the indoor side, and a rotatable shaft member is placed horizontally between both boxes. At the same time, at the end of the rotating shaft located on the indoor side, the lower end of a rocking plate that swings from one side to the other as the rotating shaft rotates is supported, and also located inside the outdoor box. When the above-mentioned shaft member is rotated in one direction, the end of the plate piece is fixed to the shaft member located in the indoor box, and the end of the plate piece is fixed to the shaft member located in the indoor box with the tip facing downward to prevent the vertical movement of the rotation transmission device from rising. When the tip of the plate piece faces downward, the tip of the plate-like body is fixed to the end of the plate-like body, and when the rocking plate starts to swing in the other direction, the rocking plate and A lock characterized by being provided with an engaging protrusion.