JPS582839Y2 - lock - Google Patents

Description

[Detailed description of the invention] This invention relates to locks used for sliding doors, accordion curtains, etc. The purpose of this invention is that the guide pin of the guide bolt protrudes only when the lock is locked, and when the lock is unlocked, the guide pin is exposed to the body or clothing. The aim is to provide a lock that does not pose a risk of obstruction.

First, the configuration of this invention will be explained with reference to the drawings showing one embodiment.

1 is a case with a retractor 2 and a dead bolt 3 inside.
, a guide bolt 4 and a hub 5 are provided.

The retractor 2 is vertically slidable, and a spring 7 is provided between it and the support column 6.

The deadbolt 3 retracts the pin 8 installed at the rear.
2, the oblong hole 10 of the case 1, and the oblong hole 12 of the case lid 11, and
2, and is recessed into the case 1 when unlocked.

An abbreviated locking piece 15 having a front protruding piece 13 and a rear protruding piece 14 is rotatably supported on the front part of the deadbolt 3 so that the rear protruding piece 14 protrudes when the lock is unlocked.

When the retractor 2 slides downward, the pin 8 of the deadbolt 3 is guided into the inclined hole 9, so the case 1
It protrudes from a dead hole 17 in the front wall 16 of.

As shown in FIG. 5, the guide bolt 4 is formed into a substantially shape with a bent piece at the rear, a guide pin 18 on the front side, and a corner part slanting downward with respect to the vertical rear face on the inside of the bent part. 19
is rotatably supported by the case 1 and the case lid 11 via a shaft 20.

When the guide bolt 4 is unlocked, the guide pin 18 is recessed into the case 1, and the corner 19 is in contact with the pressing part 21 of the retractor 2. When the retractor 2 slides downward when the lock is locked, the pressing part 21 of the retractor 2 is pressed. Since the portion 21 comes off the corner portion 19 and presses the rear surface, the guide pin 18 protrudes from the pin hole 22 of the front wall 16.

The hub 5 is supported by a spring 23 and is connected to the case 1 and the case lid 11.
The retractor 2 is rotatably supported on a shaft and engaged with an engaging portion 24 at the lower part of the retractor 2 when the lock is locked.

25 is a front, which has a dead hole 26 and a pin hole 27, and is screwed onto the case lid 11.

28 is an outdoor handle plate, which has a cylinder 29;
A cylinder tail 30 engages the hub 5.

Reference numeral 31 designates an operating handle on the outdoor side, and inserts two engagement pieces 32 formed by opposing molds on the back into a pair of sliding holes 33 provided in the handle plate 28 through their wide portions 33'. It is provided on the handle plate 28 so as to be vertically slidable.

An operating rod 34 is formed on one side of the engagement piece 32, and passes through a vertically elongated hole 35 of the case lid 11 and fits into a hole 36 of the retractor 2.

37 is an indoor handle plate, which has a thumb turn 38,
A thumbturn shaft 39 is engaged with the hub 5.

Reference numeral 40 denotes an operating handle on the indoor side, and two engaging pieces 41 formed by opposing molds on the back are inserted into a pair of sliding holes 42 provided in the handle plate 37 through their wide portions 42'. It is provided on the handle plate 37 so as to be vertically slidable.

An operating rod 43 is formed on one piece of the engagement piece 41, and the case 1
It passes through a vertically elongated hole 44 and fits into a hole 45 of the retractor 2.

The outdoor side handle plate 28 and the indoor side handle plate 37 are connected by a connecting body 46.

Note that the shape of the guide bolt 4 is not limited to the above-mentioned embodiment, and it engages with the retractor 2, rotates by sliding of the retractor 2 when the lock is locked, and its guide pin protrudes from the case. Any shape is sufficient.

In addition, the structure for interlocking the guide bolt with the retractor includes the engagement method as in the above embodiment, a direct interlocking method in which a pin and a long hole provided on both are engaged, or a lever or a lever between the two. Various methods can be considered, such as a method of indirectly connecting with a link or the like.

Next, the operation of this invention will be explained.

In the unlocked state shown in FIGS. 2 and 3, if you operate the indoor operation handle 40 downwards to lock the door from inside the room, and operate the outdoor operation handle 31 downward to lock it from the outdoors, the Retractor 2 slides downward and the IJ
Since the pressing part 21 of the T-rafter 2 presses the rear surface of the guide bolt 4, the guide bolt 4 rotates and the guide pin 1
8 protrudes from the pin hole 22.27 and fits into the pin hole of the strike 47.

When the retractor 2 is still lowered, the dead bolt 3 is guided through the pin 8 into the inclined hole 9 of the retractor 2, protrudes from the dead hole 17.26, and fits into the dead hole 48 of the strike 4T.

When the deadbolt 3 protrudes, the rear protruding piece 14 of the locking piece 15 hits the front wall 16 of the case 1, so the front protruding piece 13 rotates and protrudes, resulting in a strike 4 as shown in FIG.
7 and is temporarily locked.

In this state, when the cylinder 29 is rotated by the thumb turn 38 from inside the room or by the key from outside, the hub 5 rotates and engages with the engaging portion 24 of the IJ I-rafter 2-, and is locked.

4 and 5 show the locked state.

From this locked state, the lock can be unlocked from the indoors by disengaging the hub 5 and the retractor 2 with the thumb turn 38 and sliding the indoor operating handle 40 upward, or unlocking from the outdoors with the key. By disengaging the hub 5 and the retractor 2 and sliding the outdoor operation handle 31 upward, the dead bolt 3 having the guide bolt 4 and the locking piece 15 is retracted into the case 1.

This device has the above structure and function; when unlocking, the corner of the guide bolt comes into contact with the suppressing part of the retractor and is positioned inside the case, and when locking, the guide bolt slides to the rear surface. When the pressing part of the tractor contacts and rotates, its guide pin protrudes and fits into the pin hole of the strike.In the unlocked state, the guide pin is located inside the case, so It is safe as there is no risk of clothes or body getting caught.

In addition, when locking, the guide pin of the guide bolt protrudes ahead of the dead bolt and fits into the strike, so when used for an accordion curtain that is prone to misalignment, the locking position of the dead bolt can be adjusted. It has practical effects.

[Brief explanation of drawings]

The drawing shows one embodiment of the lock according to this invention.
The figure is a front view of the entire case, Figure 2 is a right side view of the case, Figure 3 is a right side view inside the case, Figure 4 is a left side view of the case, Figure 5 is a left side view inside the case, and Figure 5 is a left side view inside the case. Figure 6 is a rear view of the outdoor handle plate, Figure 7 is a cross-sectional view of Figure 6, Figure 8 is a rear view of the indoor handle plate, Figure 9 is a cross-sectional view of Figure 8, and Figure 10. is an explanatory diagram of a temporarily locked state. 2... Retractor - 4... Guide bolt, 18... Guide pin, 19... Corner, 21... Pressing part.

Claims (1)

[Scope of utility model registration request] A guide bolt with a bent piece at the rear is rotatably supported in the lock case, and a guide pin that can come out and go out from the front surface is provided on the front of the guide bolt. A downwardly sloping corner is formed with respect to the vertical rear surface, and the rear surface of this guide bolt is slidably provided in the lock case or engaged with the pressing part of the tractor, so that the retractor can be operated indoors or outdoors. A lock that is linked to the locking/unlocking operation of the handle.