JP2010242296A - Lock mechanism of door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock mechanism of a door, which is inexpensive because it can be worked from a rod material, which surely prevents the generation of vibrations of the door and a collision noise of a metal, which enhances security by disabling others from easily opening the door, and which enables the mounting of a small-sized door and the mounting of a storage box etc. on the front surface of this upper portion, because it can be laterally pulled out. <P>SOLUTION: Metal knobs 3B and 3A are protrusively provided on the front surfaces of the right and left doors 2B and 2A, respectively; through-holes 26 penetrating from side to side are formed in the knobs, respectively; screw holes 17 communicating with the through-holes 26 are formed in the bottom surfaces of the knobs 3A and 3B, respectively; a connecting rod 27 is detachably passed through the through-hole 26 penetrating from side to side; a hollow screw 18 is screwed into the screw hole 17 in such a manner as to freely move forward and backward; the connecting rod 27 is fixed by means of a leading end of the hollow screw 18; and bosses larger in outside diameter than the connecting rod 27 are detachably attached to both ends of the connecting rods 27 which are protruded from the through-holes 26 of the right and left knobs 3B and 3A, respectively. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a door locking mechanism.

An incense burner made of stone and storage are installed in front of the tombstone. As shown in FIG. 8, for example, the storage 1 formed of conventional stone is provided with front doors 2 </ b> A and 2 </ b> B formed of stone, and left and right knobs 3 </ b> A are provided at the front center side of the storage 1. 3B protrudes. The knobs 3A and 3B have annular grooves 5A and 5B formed on the outer periphery of a knob body 4A and 4B formed in a cylindrical shape with a metal such as stainless steel, and the central portion of the annular groove 5A formed in one knob body 4A is used as an axis. A connecting arm 8 formed of a metal plate is rotatably supported.

Further, a U-shaped notch 9 is formed on the distal end side of the connecting arm 8, and this is detachably engaged with an engaging portion at the center of the annular groove 5B formed in the other knob body 4B, so that both knobs 3A, 3B is connected and locked so that the left and right doors 2A and 2B do not open (Patent Document 1).

However, in the conventional structure, since the double doors 2A and 2B are formed of stone, the doors 2A and 2B are processed with high accuracy, and the doors 2A and 2B are supported by hinges and shafts (not shown) so as to be opened and closed. It was difficult to assemble. For this reason, the width of the annular grooves 5A and 5B must be formed larger than the plate thickness of the connecting arm 8, and the gap becomes larger, so that the doors 2A and 2B are not flat when closed, When the wind blows, the doors 2A and 2B vibrate back and forth, hitting the knobs 3A and 3B and the connecting arm 8, causing a metal collision sound.

In addition, the conventional structure allows the other person to easily open the doors 2A and 2B by lifting the connecting arm 8 and releasing the connection of the knobs 3A and 3B. I couldn't.

For this reason, the present inventor first developed the locking mechanism shown in FIG. In this case, left and right knobs 3A and 3B made of metal and formed in a columnar shape project from the front face of double doors 2A and 2B made of stone on the front. The knobs 3A and 3B are formed with annular grooves 5A and 5B on the outer circumferences of knob bodies 4A and 4B formed in a columnar shape with a metal such as stainless steel.

One knob body 4 </ b> A has a shaft 6 formed on the back surface of the disk portion 12, a cylindrical body 13 projecting integrally on the back surface, and a knob member 15 having a screw hole 14 formed inside the cylindrical body 13. And a ring-shaped knob member 16 are combined. Further, a hollow screw 18 having an outer diameter of about 4 mm and having a hollow section in a hexagonal shape is screwed into the outer peripheral side of the disk portion 12 through a small screw hole 17 having an inner diameter of about 4 mm. The hollow screw 18 can be extended into the annular groove 5A in a state where it is combined with the ring-shaped knob member 16.

The other knob body 4B has a screw hole 14 formed in the back surface of the cylindrical body 20, and an annular groove 5B formed in the outer periphery. A small screw hole 17 having an inner diameter of about 4 mm is formed in the front part. Then, the hollow screw 18 having an outer diameter of about 4 mm and having a hollow section section formed in a hexagonal shape is screwed therein so that the hollow screw 18 can extend into the annular groove 5B. Similarly to FIG. 8, the connecting arm 8 is made of a metal plate, and a shaft mounting hole 25 through which the shaft 6 passes is formed on one side, and a U-shaped notch 9 is formed on the other side.

The knob 3A is inserted into the ring-shaped knob member 16 after the shaft mounting hole 25 of the connecting arm 8 is fitted to the shaft 6 of the knob member 15. Next, the bolt 23 is inserted through the washer 24 from the back side of the door 2A so as to be positioned in front of the through hole 22 opened in the door 2A, and the tip thereof is screwed into the screw hole 14 of the cylindrical body 13. By doing so, the knob 3A is fixed to the door 2A.

The knob 3B is positioned in front of the through hole 22 opened in the door 2B, and a bolt 23 is inserted from the back side of the door 2B through a washer 24, and the tip thereof is formed on the back side of the knob 3B. The knob 3B is fixed to the door 2B by being screwed into the hole 14.

As shown in FIG. 8, the lock mechanism configured as described above lifts and rotates the connecting arm 8 upward as indicated by the phantom line, thereby unlocking the knobs 3A and 3B and releasing the knobs 3A and 3B by hand. The doors 2A and 2B can be opened by grabbing.

When locking the closed doors 2A and 2B, the connecting arm 8 is returned and the U-shaped notch 9 is engaged with the engaging portion 10 formed inside the annular groove 5B of the knob 3B. Next, when the hexagon wrench is inserted into the hollow screw 18 and rotated, the hollow screw 18 advances through the screw hole 17 and protrudes into the annular grooves 5A and 5B. When the hexagon wrench further advances, the connecting arm 8 is pressed and fixed to the knobs 3A and 3B. The

Accordingly, the connecting arm 8 is fixed with the hollow screw 18 and the left and right knobs 3A and 3B are locked, so that there is no rattling and the doors 2A and 2B do not vibrate even when wind blows, so that metal collision noise is reliably generated. Can be prevented. In addition, since a small hollow screw 18 having an outer diameter of about 4 mm is used, it does not appear to be locked in appearance, and others who do not have a hexagon wrench do not move even if they try to rotate the connecting arm 8. Therefore, the knob and the connecting arm 8 are firmly fixed, there is no rattling, and the doors 2A and 2B are reliably prevented from vibrations and metal collision noises. (Patent Document 2).

However, this structure has a high processing cost for the connecting arm 8 and is complicated, and the connecting arm 8 rotates up and down as shown in FIG. There has been a problem that the small doors 2A and 2B and a storage box or the like cannot be attached to the upper front surface of the door.

FIG. 2 of JP-A-9-28549 JP 2005-226239 A

The present invention improves the above-mentioned problems, can be processed from a bar without using a connecting arm that is high in processing cost, is low in cost, reliably prevents door vibration and metal collision noise, and is easy for others. The door can not be opened to improve security, and it can be pulled out laterally without using a connecting arm that requires a space at the top for rotation. A door locking mechanism to which a storage box or the like can be attached is provided.

In the door locking mechanism according to the first aspect of the present invention, a metal knob protrudes from the front of the left and right doors or the front of the door and the front plate, and a through-hole penetrating from side to side is formed in the knob. A screw hole communicating with the through hole is formed on the bottom surface of the knob, a connecting rod is detachably passed through the through hole penetrating left and right, and a screw is screwed forward and backward to the screw hole, The connecting rod is fixed at the tip of this screw, and bosses with a larger outer diameter than the connecting rod are attached to both ends of the connecting rod protruding from the through holes of the left and right knobs, and at least one boss is detachably attached. It is a feature.

The door locking mechanism according to claim 2 of the present invention is characterized in that, in claim 1, the screw is formed of a hollow screw whose hollow section has a hexagonal cross-sectional shape.

The door lock mechanism according to claim 3 of the present invention is characterized in that, in claim 1, a lock mounting hole for attaching a lock is formed in the middle of the connecting rod.

According to the door locking mechanism of the first aspect of the present invention, the connecting rod penetrates the left and right knobs attached to the door and the front plate, and both sides thereof are fixed by the bosses having a large outer diameter. Since it is fixed with screws on the inside, it is securely locked, and it looks different from a normal lock and cannot be opened by others who do not know the structure. Further, since the connecting rod is fixed, there is no rattling, and the door does not vibrate even when wind blows, so that it is possible to reliably prevent the occurrence of metal collision noise.

The door lock mechanism according to the second aspect of the present invention fixes the connecting rod by advancing the hollow screw with a hexagon wrench, so that others who do not have a hexagon wrench cannot open the door and have excellent security. ing.

Further, according to the door lock mechanism of the third aspect, the lock attachment hole for attaching the lock is formed in the middle of the connecting rod, and the lock is attached to the double lock so that the security can be further improved. it can.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. This door locking mechanism is attached to the front face of the double doors 2A, 2B made of stone, and has left and right knobs 3A, 3B formed in a columnar shape with metal. As shown in FIG. 3, through holes 26, 26 penetrating left and right are formed, and a connecting rod 27 is detachably penetrated therethrough.

The knobs 3A and 3B are formed with screw holes 14 on the back side, and through holes 22 are opened at the knob mounting positions of the doors 2A and 2B. Bolts 23 are inserted from the back side through washers 24, The front end of the knob 3A, 3B is fixed to the door 2A, 2B by screwing it into a screw hole 14 formed on the back surface of the knob 3A, 3B.

Further, as shown in FIGS. 4 and 5, screw holes 17 communicating with the through holes 26 are formed on the bottom surfaces of the knobs 3A and 3B, and a hollow screw 18 having a hollow section formed in a hexagon is formed therein. The connecting rod 27 is fixed from the bottom side by the tip of the hollow screw 18 by being screwed together with a hexagon wrench 32.

When the doors 2A and 2B are locked in a locked state, the door lock mechanism having the above-described structure has a connecting rod 27 that penetrates the knobs 3A and 3B as shown in FIGS. Are fixed by the hollow screws 18 inside the knobs 3A and 3B, and are securely locked. Even if the connecting rod 27 is pulled sideways, it does not move, Has a different appearance and cannot be opened by others who do not know the structure. Further, since the connecting rod 27 is fixed, there is no rattling, and the doors 2A and 2B do not vibrate even when wind blows, and the occurrence of metal collision noise can be reliably prevented.

When the grave is visited, as shown in FIGS. 4 and 5, when the hexagon wrench 32 is inserted into the screw hole 17 formed in the bottom surface of the knobs 3A and 3B and the hollow screw 18 is rotated and lowered, the connecting rod 27 is locked. Canceled. Thereafter, when one boss 30 is rotated and removed from the threaded portion 28 and then pulled out sideways, the connecting rod 27 is detached from the through hole 26 of the knobs 3A and 3B, and the doors 2A and 2B can be opened and closed. When returning to the grave after the grave visit, the boss 30 is attached and the hollow screw 18 is stopped with the hexagon wrench 32 in the reverse procedure to the above, and the boss 30 is locked.

Therefore, others who do not know the structure cannot unlock the doors and cannot open the doors 2A and 2B, so that the security is excellent. Further, the connecting rod 27 has a structure that is pulled out sideways, and does not need to be rotated like the conventional connecting arm 18, and can be formed narrowly with the top plate 19, so that it can be attached to the small storage 1 and the ossuary chamber Another storage can be attached to the top of the door. Even if the grave wrench 32 is not taken with each visit to the grave, the hex wrench 32 is about 6 cm long and thin, so it can be hidden between gravestones and stones on the outer fence.

FIG. 6 shows another embodiment of the present invention, in which a lock mounting hole 33 is opened in the middle of the connecting rod 27. In this state, the lock 34 is attached to the lock attachment hole 33 with the connecting rod 27 locked. Even if another person who knows the lock structure should release it with the hexagon wrench 32, the lock 34 is applied, so the connecting rod 27 cannot be pulled out sideways and the doors 2A and 2B cannot be opened.

FIG. 7 shows still another embodiment of the present invention, which shows a case where the present invention is applied to the storage 1 of the one-sided door 2. A knob 3A is attached to the front plate 35, and the knob 3B is attached to the door 2. Is attached.

In the above description, a threaded portion 28 is formed at both ends of the connecting rod 27 and a boss 30 having a large outer diameter is screwed therein. However, since one boss 30 does not need to be removed, an adhesive is used. A fixed structure or a structure in which the connecting rod 27 and one boss 30 are integrally formed may be used. Moreover, although the case where the hollow screw 18 in which the hollow portion cross-sectional shape is formed in a hexagonal shape is used for fixing the connecting rod 27, a screw having another structure may be used.

The door locking mechanism is described as being attached to the storage 1 made of stone or the door of the ossuary chamber, but may be attached to the door of a wooden or metal storage.

It is a perspective view which shows the locking mechanism of the door by one Embodiment of this invention. It is a top view which shows the locking mechanism attached to the door of FIG. It is a horizontal sectional view which shows the lock mechanism attached to the door of FIG. It is a vertical front view which shows the locking mechanism attached to the door of FIG. It is a vertical side view which shows the locking mechanism attached to the door of FIG. It is a perspective view which shows the locking mechanism of the door which attached the lock | rock by other embodiment of this invention. It is a horizontal sectional view showing a state where a lock mechanism is attached to a single-open storage according to another embodiment of the present invention. It is a perspective view which shows the lock mechanism of the door using the conventional connection arm. It is a horizontal sectional view showing a lock mechanism attached to a conventional door.

1 storage
2, 2A, 2B door
3A, 3B knob
4A, 4B Knob body
5A, 5B annular groove
6 axes
8 Linking arm
9 U-shaped notch
13 Cylindrical body
14 Screw holes
15 Knob member
16 Knob member
17 Screw hole
18 Hollow screw
19 Top plate
20 cylinder
22 Through hole
23 volts
24 washer
25 Shaft mounting hole
26 Through hole
27 Connecting rod
28 Screw part
29 Screw holes
30 Boss
32 Hexagon wrench
33 Lock mounting hole
34 tablets
35 Front plate

Claims (3)

  A metal knob protrudes from the front of the left and right doors or the front of the door and the front plate, and a through-hole penetrating to the left and right is formed in the knob, and a screw hole communicating with the through-hole is formed on the bottom surface of the knob. The connecting rod is detachably inserted into the through hole penetrating from side to side, and a screw is screwed forward and backward to the screw hole to fix the connecting rod at the tip of the screw. A door locking mechanism, wherein a boss having a larger outer diameter than that of the connecting rod is attached to both ends of the connecting rod protruding from the through hole of the knob, and at least one of the bosses is detachably attached.   2. The door locking mechanism according to claim 1, wherein the screw is formed of a hollow screw having a hollow section formed in a hexagonal shape. 2. The door locking mechanism according to claim 1, wherein a lock mounting hole for attaching a lock is formed in the middle of the connecting rod.