JPS6022190Y2 - Mounting structure of lock case in shutter locking device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lock housing mounting structure in a shutter locking device.

More specifically, a lock housing is attached to the back of one of the slats that make up the shutter, and the locking mechanism inside the lock housing is operated with a key from the front side of the slat. The present invention relates to a mounting structure for the lock housing in a shutter locking device in which the locking device locks the shutter by engaging the distal end of the provided lock arm with an engaging portion provided on the inner surface of the guide rail.

One embodiment will be described below with reference to the accompanying drawings.

1 is a slat that constitutes the shutter, and 2 is a lock case attached to the back side of the slat.

3 is a decorative plate of the lock case 2, located on the front side of the slat 1;
The lock housing 2 is attached by screwing the attachment screw 4 into the decorative plate 3.

As shown in FIG. 3, the lock housing 2 has a lock body 6 located at its center, which has a substantially rectangular protruding step part centered on a circular protrusion part 5 into which a key (not shown) is inserted from the front side. There is.

Referring to FIG. 5, the decorative plate 3 is provided with a through hole 5a of the circular protrusion 5 in the center, and a recess 6a into which the lock 6 is fitted around the through hole 5a.

Bosses 7.7 are protruded on both sides of the recess 6a at positions vertically shifted from the center line, and the bosses are provided with internal threads 7a, and a flat-bottomed non-threaded part 7b is provided at the bottom of the bosses 7.7. ing.

The boss 7 has such a length that, when the lock housing 2 is attached, the top thereof touches the bottom surface 2a of the lock housing 2 or is slightly separated from the bottom surface 2a of the lock housing 2.

The tip of the mounting screw 4 is a non-threaded portion 4a, and when this portion hits the flat-bottomed non-threaded portion 7b of the boss 7 during installation, it cannot be screwed in any further.

Reference numeral 8 denotes a ring-shaped stopper which can be pushed into the boss 7 from the back side of the slat 1 to fix the decorative plate 3 to the slat.

Therefore, the diameter of the center hole of the stopper is slightly smaller than the diameter of the boss 7, so that it can be inserted by force.

9 is a lock penetration hole bored in the slat 1, and 10 is a boss penetration hole.

The boss penetration hole 10 is bored vertically offset from the center line so as to match the boss 7.

Reference numeral 11 denotes an insertion hole for the mounting screw 4 provided in the lock housing 2, and is in the same positional relationship as the boss 7.

Note that 12 is a lock knob that can be locked from the inside.

With the above configuration, the lock housing 2 can be attached to the back surface of the slat in the following manner.

i Insert the bosses 7.7 of the decorative plate 3 into the boss penetration holes 10, 10 of the slat 1 in advance, and press the ring-shaped stopper 8 to fix them.

ii Place the lock housing 2 on the back side of the slat 1, insert the lock body 6 into the lock penetration hole 9 of the slat, and push it further to fit the lock body 6 into the recess 6a of the decorative plate 3, and at the same time make a circular shape. The protrusion 5 is inserted into the through hole 5a of the decorative plate.

iii Insert the mounting screw 4 from the back of the lock case 2 and screw it into the female thread 7a provided on the boss 7 of the decorative plate 3.

When the non-threaded portion 4a of the mounting screw 4 hits the non-threaded portion 7b at the bottom of the internal thread 7a of the boss, the installation is complete.

The present invention has the following advantages.

a Since the lock body 6 is held by fitting into the large lock body penetration hole 9 of the slat 1 and the recess 6a of the decorative plate 3, the lock case is stably held vertically and horizontally.

b. Since the boss 7.7 of the decorative plate 3 is not inserted into the lock housing 2, it can be attached to the slat 1 with the ring-shaped stopper 8 in advance, which is convenient for assembly.

A non-threaded portion 7b is provided at the bottom of the C-boss 7.7, and a non-threaded portion 4a is provided at the tip of the mounting screw 4 in response to this, so the lock case does not deform even when tightened strongly, improving quality. is safe.

d The lock housing 2 is supported with respect to the slat 1 by the lock body 6 and two mounting screws 4°4 which are vertically offset from the center.

Therefore, compared to simple linear support, extremely stable installation is possible.

e Since there is a distance between the boss 7 and the surface of the lock housing 2, the mounting screw 4 can be screwed in elastically, which has the effect of preventing loosening.

[Brief explanation of drawings]

Figure 1 is a front view of the slat in the lock installation position, Figure 2 is the same back view, Figure 3 is a front view of the lock housing, Figure 4 is a view taken along the IV-IV arrow in Figure 3, and Figure 5 is a front view of the slat in the lock installation position. The figure is a cross-sectional view (
(The lock case is shown with imaginary lines), Figure 6 shows VI-VI in Figure 1.
Cross-sectional view taken in the direction of arrows (the lock case is shown by a virtual line). In the diagram; 1...slat, 2...
Lock housing, 3... Decorative plate, 2a... Bottom surface (of the lock housing), 4... Mounting screw, 5... Circular protrusion, 4a. ......Tip non-threaded part (of the mounting screw), 5a...Through hole, 6...Lock body, 6
a...Concavity, 7...Boss, 7a...
...female thread, 7b... (flat bottom) non-threaded part,
8... Ring-shaped stopper, 9... Lock body penetration hole, 10... Boss penetration hole, 11...
(Mounting screw) insertion hole, 12...Lock knob.

Claims (1)

[Claims for Utility Model Registration] A structure for mounting a lock housing in a shutter locking device, characterized by comprising the following configurations (1) to (2). A lock housing 2; equipped with a lock body 6 in the center that has a substantially rectangular protruding step with a circular protrusion 5 in the center into which a key is inserted, and a mounting screw 4 at a position vertically shifted from the horizontal center line. It has an insertion hole 11 and is attached to the back side of the slat 1. Mouth Decoration plate 3: It has a through hole 5a in the center into which the circular protrusion 5 of the lock case 2 is inserted, and a recess 6a in the back into which the lock body 6 is inserted, and on both sides of the recess 6a there are holes above and below the horizontal center line of the decoration plate 3. It is provided with a boss 7.7 which is provided offset. The boss 7 is provided with a female thread 7a, and the bottom of the female thread is a non-threaded portion 7b. B. Slat 1: A lock penetration hole 9 into which the lock body 6 is inserted, and boss penetration holes 10 and 10 into which the boss 7 is inserted are provided on both sides thereof. A ring-shaped stopper 8; has a hole with a smaller diameter (than the outer diameter of the boss 7), and after inserting the boss 7 into the boss penetration hole 10 of the slat, the stopper 8 is forcibly fitted into the boss 7 to form a decorative plate. 3 can be fixed to the slat 1.