JPS59106674A - Main lock apparatus of door - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention relates to a door locking device that has good performance in a shed, in which the latch bolt of a window lock mechanism and the put bolt of a lock mechanism are housed integrally inside a circular cylindrical body. It is.

In the past, various types of this type of blank lock and main lock have been seen here and there, but these ones that combine a latch and a put bolt,
Even if the get bolt moves forward and is locked, the force of the inclined part at the tip of the launcher will cause the bolt to be pushed out through the gap in the door, and it will be easily destroyed and will not function as a lock. There are drawbacks that cannot be fulfilled.

Further, when the door is opened and closed, the force of the inclined portion of the latch hits the door holder and generates noise, which causes a very unpleasant feeling when opening and closing the door. Therefore, in recent years, some latch construction materials have been selected that do not generate noise. However, for those that use both a latch and a put bolt,
If a soft material is selected for the latch and bolt, there is a risk that the door will be easily cut open with a saw or the like through the gap between the door and the door frame.

In addition, in conventional models, the operating cam that moves in and out of the latch is installed inside a case such as a machine casing, and the sliding plate at the rear of the launcher is used for both operation and locking.
When operating the handle, if a malfunction occurs, such as operating the window lock launch bolt too quickly and unlocking the lock at the same time, the linkage may be disrupted, easily causing a breakdown.

This invention has solved the above-mentioned drawbacks, and its main structure is that the latch and the get bolt are retractable inside the machine casing. A pressing spring is housed in the latch sliding body, and an operating cam that engages with the latch sliding body, a sliding plate that rotates the operating cam, and a rotating cam that presses the sliding plate are installed. . An extruded body is formed in the dead boiler, and a locking link is connected to the extruded body, and a locking rotary body provided with a pressing cam is connected to this locking link.

Further, when the lock is locked, the put bolt covers the entire outer periphery of the launch except for the front surface, and also pushes the latch forward.

Therefore, according to the present invention, the latch is made of a soft material that does not generate noise, and the put bolt covering the outer periphery is made of a hard material to reliably prevent breakage. In addition, the overall size can be significantly reduced, and when the lock is locked, the latch protrudes forward more than usual and is engaged, making it stronger, and the cover of the get bolt ensures that the latch cannot be damaged or cut.

Next, an embodiment of this invention will be explained with reference to the drawings. (1
) is a cylindrical machine casing, and the launch (
3) and guide cylinder (2) housing the get bolt (4)
are integrally constructed. (5) is a mounting plate that is nailed to the side of the door, which has a through hole at the tip of the guide cylinder (2) through which the latch (3) and the put bolt (4) come and go. Next, the latch (3) K forms a storage part into which a pressing spring α4 which has a restoring action is inserted. Furthermore, a latch sliding body (6) provided with an engaging bent piece (7) is fixed to the rear of the latch (3). The retaining bending piece (7)
The operating cam (8) that is hooked and slid is provided with an engaging projecting piece υ that engages with the retaining bent piece (7) on one side, and
Each of them is formed with a protruding shaft ρ(2) that presses and rotates the operating cam (8). A sliding plate (9) operated by a latch (3) provided with a pressing rod C1!2 for pressing and rotating the protruding shaft (2) forms a joint portion (C31) opposite to the latch (3). In addition, the rotary cam t101 located at the rear that presses the slide plate (91) has the joint portion C311C1 at the front.
In addition to forming a pressing part C3202 that comes into pressure contact with 1), a through hole (C) through which a square shaft is inserted is formed in the center part of the phase, and an arcuate groove hole (C) that is engaged with a door handle is bored in the rear outer periphery of the through hole (C). It is. Further, the get bolt (4) has a substantially U-shaped cross section, has a latch (3) sliding therein, and has an extruded body OD integrally formed at the rear thereof. This extruded body (
111&C is provided with a connecting piece Q41 on one side, and a locking link uz for locking operation is connected with a connecting pin 0 seconds. A shaft hole (2) is provided at the end of the locking link Z, and this shaft hole (2Br is rotated by aligning the shaft hole (2) provided with the pressing cam 5r provided on the outer periphery of the locking rotary body 0. The locking rotary body α31M has a square hole (2) bored in the center. Reference numeral 051 is a press-fitting spring, which is wound around the protruding shaft field, and its -piece is the locking link O
It is wound around the connecting shaft a9 between the locking rotor 2 and the locking rotary body, and is attached so as to impart a holding force when the put bolt (4) is pushed out. 061, the decoy is a restoring spring that provides the restoring force of the rotary cam (II), and its end is attached to the pin (c) C35+ provided on the machine casing (1).

In addition, if the code is η, the extruded body 01)K has a shaft hole (to).
and the shaft hole (to) of the operating cam (8) located above the fixed shaft.

0 is the limiting protrusion of the launch (3), and (9) is the gap between the limiting protrusion and the handle plate space.

This invention has the above-mentioned structure, and now we will explain in detail how to use it.Firstly, when it is normally used as a window lock, as shown in Fig. When the circular arc slot (G) provided is engaged and the rotating cam (1α) rotates left and right against the restoring spring fi61, its pressing portion C (3) is located behind the slide plate (9). In order to press the joint 6υ, the slide plate (9) moves forward, and the pressing rod 12z at the tip comes into pressure contact with the protruding shaft ■ of the operating cam (8), pressing it and fixing the operating cam (8) with the fixed shaft a71VC. At this time, the engaging protrusion υ of the operating cam (8) increases its speed and engages the retaining bent piece (7) of the latch sliding body (6) located 14 meters behind the latch (3). When engaged and retracted, the latch (3) retracts against the internal pressure spring (+4), and then the pressure spring I
It stands out and returns to the status quo through the restoration of . At this time, the rotating cam is restored and maintained at its original neutral position by the rear restoring spring αbIae, and is in a state where it can rotate to the right at all times. Next, when using this lock,
By rotating the locking rotary body 131 by 90 degrees by rotating various types of cameras provided on the handle, etc., the rotary body u31VC
The provided pressing cam (c) is inserted and fixed into the shaft hole 4 and the shaft hole (4) of the locking link α2, and the connecting shaft a! Jrp: Wrapped pressing spring (compresses I9, advances locking link σ2, and connects to get bolt (4)
The extruded body αB of is also extruded forward. That is, the locking rotary body u
When J rotates, the chit bolt (4) moves forward via the locking link σ2 and is inserted into the door stop fitting and fixed therein. At this time, the suppression spring α9 is 9 of the pressing cam (toward) of the locking rotary body α3.
Rotate 0 degrees to lower the horizontal position and put the bolt (4)
This resists the return of the pushing force. That is, the suppressing spring (15+) is for maintaining and controlling the locking rotary body o31.Furthermore, by forward locking the put bolt (4), the shaft hole (c) of the extruded body αl of the get bolt +41 is
and the shaft hole end of the operating cam (8) are integrally fixed by the fixed shaft (lη). However, when the current is applied, pressure is also applied to a certain interval between the chamber thresholds (to), and the latch (3) is also moved forward and fixed by that interval.Furthermore, the put bolt (4)
The pressing spring I is fixed in the X lock hole in a pressed state by the spring receiving part 61 located at the rear of the pressing spring α4 shown in FIG. In this locked state, the sliding plate (9) of the window lock is separated from the operating cam (8), and the rotary cam (ICJ) is free to rotate.

Since the present invention has the above-described structure, the latch of the window lock mechanism and the puntopol of the lock mechanism can be reliably housed within the cylinder of a conventional window lock, and the entire structure can be made extremely strong and compact. The latch is 71 when using a window lock.
It moves freely backwards and forwards when the handle is operated, but when it is locked with the get bolt, it is pushed further forward than the normal protruding position, making the door extremely strong and highly practical, as it reliably prevents breakage and cutting. It has a great effect. In addition, since the put bolt protects the entire outer circumference of the latch in a U-shape, it has an excellent safety effect in that it can reliably prevent the gap in the door from being pried open by cutting with a saw or the like or with a crowbar. Since the pressing spring is housed inside the latch and the latch sliding body is attached, it can be made into a large shed, and there is no need to worry about the pressing spring coming off. Providing an engaging actuating cam has the effect of achieving a speed-increasing effect in which the latch moves in and out more quickly. In addition, the slide plate that rotates the operating cam and the rotary cam that presses the slide plate allow for easy and reliable movement from side to side, and the restoring spring maintains the neutral position, increasing the rotational force of the handle and increasing durability. It has the effect of holding it.

Furthermore, a locking link is connected to the suppression body of Deadport 4,
Since the locking rotor is connected to the locking link, the structure is very simple, and the forward and backward movements are reliable and will not be damaged. When the lock is locked, the latch and put bolt move forward, and the operating cam for operating the window lock moves forward together with the nut bolt and becomes free from the push rod, so the handle that operates with the rotating cam also idles, and the handle can be used with a pipe wrench, etc. It also has the excellent effect of reliably preventing forced unlocking caused by.

In addition, in this invention, the latch-operated slide plate and the put-bolt-operated locking mechanism are each configured separately.
There is also the practical effect that no malfunction or damage will occur even if the locking and unlocking operations are incorrectly performed.

[Brief explanation of the drawing]

Claims (1)

[Claims] In the main door locking device in which a latch and a put bolt are retractable inside the machine casing and guide cylinder, the latch houses a pressing spring inside and a latch sliding body is attached to the latch. An operating cam that engages with the latch sliding body, a slide plate that rotates the operating cam, and a rotating cam that presses the slide plate are installed. A locking link is connected to the locking link, and a locking rotary body equipped with a suppression cam is connected to the locking link, so that the get bolt covers the entire outer periphery of the latch except for the front surface when the lock is locked, and pushes the launch forward. This locking device can also be used as an empty lock.