JPH0651444U - Simple lock - Google Patents

Abstract

(57) [Abstract] [Purpose] A simple lock suitable for meter rooms such as gas and water is provided. It is easy to hang the hooks and open and close the door, and to provide a simple lock mechanism. Prevent the doors from opening and closing due to mischief such as children. [Structure] A handle frame 4 covering the fixed base frame 1 is rotatably mounted, a hanging metal fitting 7 is attached to the central axis of the handle frame 4, and a leg 11c is provided in a hollow portion 4C of the handle frame 4. Groove for fitting coins 11e and / or keyhole 11
The action body 11 with a, the rotation stop member 12 that is selectively provided, the rotating plate 15 that engages the leg pieces 11c of the action body 11, and the stopper member that locks the handle frame 4 to the fixed base frame 1. The lock mechanism 50 includes a lock mechanism 17 and a cam means 20 provided between the rotary plate 15 and the stopper member 17.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a simple lock suitable for use in a meter room where gas, water, electricity meters, etc. are installed.

[0002]

[Prior art]

 Conventional locks used for doors of conventional meter rooms (meter inspection rooms) do not have a locking / unlocking mechanism with a key. Simply turn the hooks to rotate the door frame or double doors. It's just hanging on the other side. As a result, children could mischievously open and close the door, touch the main plugs, or leave unnecessary objects, which was dangerous.

[0003] Although the above-mentioned knob normally also serves as a puller for opening and closing the door, it is small enough to fit in the central recess of the fixed frame, so that the hanging bracket can be hung. There was also a drawback that it was difficult to remove and open and close the door.

The simple lock of the present invention is proposed to solve the above problems. Immediately, by exposing only the handle frame, which is a rotating member, on the outer surface of the door, it is possible to form a relatively large knob, which makes it easy to hang the hanging bracket and open and close the door, and A simple lock mechanism is installed so that it can be stored in the limited space of the handle frame, and the purpose is to prevent the door from opening and closing by mischief such as children.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the invention according to claim 1 has a plate-shaped fixed base frame having a flange for attachment on the periphery thereof, and a flange portion and a knob portion which are sized to cover the flange. Attach a cylindrical handle frame with a bottom so that it can be rotated by a predetermined angle, and let the tip side of the center shaft provided inside the handle frame project rearward from the fixed base frame to attach the hook for locking the door. An action body with a groove for fitting coins, which has a leg piece in the rear in the hollow portion of the handle frame and which can be selectively rotated by a predetermined angle, and the action piece by engaging the leg piece of the action body. It is provided between the rotating plate and the stopper member, the rotating plate that can be rotated together with it, the stopper member that protrudes from the handle frame and selectively locks the handle frame to the fixed base frame, and the rotating plate and the stopper member. , Stopper member for rotating the rotating plate Characterized by comprising a lock mechanism comprising a cam means for converting the projected input movement from the handle frame.

Further, in addition to the structure of the invention described in claim 1, the invention described in claim 3 is a non-rotatable member that is biased toward the working body and detachably engages with the working body. It is characterized by the addition of anti-rotation material.

[0007]

[Action]

 For convenience of explanation, the locking operation of the device according to the third aspect will be described first. First, after closing the door, turn the handle frame with your fingers and hook the metal fitting attached to the center shaft to the door frame or the door on the other side of the double door.

Next, the duplication key is inserted into the key hole of the acting body, and the detent member engaged with the acting body is pushed against the biasing force of the spring with the key tip thereof to engage the acting member with the detent member. Solve

In this state, the acting body can be rotated. Therefore, when the key is rotated by a predetermined angle, the rotary plate engaged with the leg piece of the acting body is also rotated, and the protruding piece of the rotary plate is further moved. The stopper member projects from the handle frame and is locked to the fixed base frame by being rotationally displaced in the elongated hole of the stopper member. Here, the door is locked in the closed state.

In order to unlock, the duplication key is inserted into the key hole of the operating body, and the key is turned in the opposite direction to the above. By the operation, the stopper member is pulled into the handle frame and the engagement with the fixed base frame is performed. The stopped state is released. Therefore, since the handle frame can be rotated, the hanging metal fitting can be removed by the rotation to open the door.

According to the first aspect of the invention, the non-rotatable detent member that is biased toward the acting body and detachably engages with the acting body is omitted, and the acting body is a coin. Grooves for fitting (including similar) are provided.

Therefore, since the acting body is always rotatable, coins (including similar ones) may be simply fitted into the groove of the acting body and rotated. Other operations are the same as those described in claim 3. In short, coins are used in place of the lock / unlock key.

Further, in the lock of the present invention, only the rotating handle frame is exposed on the outer surface of the door, so that the knob portion can be formed in a relatively large size and also serves as a puller. It is assumed that it is easy to hang the hanging metal fittings and open and close the door.

[0014]

【Example】

 The present invention will be described below based on the embodiments shown in the drawings. Each member of the lock of this invention is usually made of a metal material such as iron, steel or aluminum, or a hard synthetic resin material.

In FIG. 1 and FIG. 2, reference numeral 1 is a deep fixed plate-shaped fixed base frame having a mounting flange 1 a on the periphery thereof, and is provided with a screw 3 or the like on a door 2 or the like of a meter room (inspection room). It is attached.

On the fixed base frame 1, a bottomed cylindrical handle frame 4 having a flange portion 4a having a size covering the flange 1a is attached so as to be rotatable by a predetermined angle.

On the inner surface side of the handle frame, there is provided a central shaft 5 provided integrally with or separately from it, and the central shaft 5 penetrates the central portion of the fixed base frame 1 and projects rearward. .

The handle frame 4 is rotatably attached to the fixed base frame 1 via a center shaft 5 thereof. Reference numeral 6 is a retaining ring attached to the central shaft 5.

A hanging metal fitting 7 having an appropriate shape is fixed to the tip end portion (right end portion in FIG. 2) of the central shaft 5 with a screw 10 via a mounting plate 8 and a washer 9.

When the locking mechanism 50 described later is unlocked, the hanging metal fitting 7 holds the knob 4b of the handle frame 4 with a finger and turns it in the direction of arrow A, so that the door frame (not shown) or the other side of the double door can be locked. The door is locked, and the lock is released by turning it in the direction of arrow B.

The knob portion 4b is integrally provided in the central recess 4e of the handle frame 4 in the diameter direction. A lock mechanism, generally designated by the numeral 50, is provided in the hollow portion 4c of the knob 4b of the handle frame 4.

As shown clearly in FIGS. 3, 4 and 5, the handle frame 4, that is, the substantially cylindrical acting body 11 that is partially exposed on the front surface side of the knob portion 4b, allows coins to be fitted and removed on the front surface side. Has a groove 11e and / or a key hole 11a, and preferably has two leg pieces 11c, 11c integrally formed behind the body portion 11b to engage with a rotary plate 15 described later. A locking member 12 (described later) is detachably engaged along the center line 11b and has an integrally formed engaging protrusion 11d having a cross section of a different shape, for example, a square. This acting body 11 is rotatably mounted in the hollow portion 4c of the handle frame 4.

It is sufficient for the action body 11 of the type rotated by coins to have only the groove 11e for fitting coins, but even if the keyhole 11a is provided side by side, it does not hinder the operation operation, In addition, the action body 11 of the type that can be turned by the key 30 as shown in FIG. 9 only needs to have the key hole 11a, but even if the groove 11e for inserting coins is provided side by side, it does not hinder the operation. Don't come

When two types of coin-operated type locks and key-operated type locks are produced, it is possible to share them by forming an operating body 11 having a groove 11e and a keyhole 11a as shown in the figure, which reduces the production cost. It is advantageous in terms of aspects and parts management.

A detent member 12 is slidably fitted into the space of the body 11 b of the above-mentioned acting body 11, and is urged by a compression spring 13 from the rear to be detachably engaged.

As shown in FIGS. 2 and 6, the detent member 12 having a cylindrical shape has a receiving hole 12a having a shape corresponding to the engaging protrusion 11d of the working body 11 in the front portion and a rear portion in the rear portion. Preferably has two arm pieces 12b, 12b integrally projecting outward (in the radial direction of the acting body 11).

The detent member 12 is elastically pressed by the compression spring 13 so that the receiving hole 12a thereof engages with the engaging projection 11d of the working body 11, and the arm pieces 12b and 12b of the detent member 12 engage with the hollow portion 4c. It is slidably fitted in a suitable groove 14 provided therein. Therefore, the detent member 12 can slide in the front-back direction (left-right direction in FIG. 2) within the handle frame 4, but cannot rotate.

In the acting body 11, for example, a compound key 30 having a bifurcated tip as shown in FIG. 9 is inserted into the key hole 11 a, and the detent member 12 is pushed against the elastic force of the compression spring 13 so that the detent member 12 and The rotation is possible only when the engagement is released.

On the other hand, the leg pieces 11 c, 11 c of the acting body 11 are engaged with the rotary plate 15 provided behind the rotation preventing member 12. Needless to say, the leg pieces 11c of the acting body 11 and the arm pieces 12b of the anti-rotation member 12 are arranged so as not to interfere with each other.

In the coin-operated type simple lock according to the first aspect of the present invention, the detent member 12 and the compression spring 13 for urging the detent member 12 are omitted. Therefore, the acting body 11 is always rotatable, and if the coins (including similar ones) such as a 10-yen coin are simply fitted into the coin groove 11e of the head thereof and rotated, the acting body 11 is rotated. .

The structure and the like shown below are common to the coin type operation type lock and the key operation type lock.

As shown in FIG. 7, the rotary plate 15 has a disk shape, and has two notches 15a, 15a formed in the peripheral portion thereof, with which the leg pieces 11c, 11c are engaged. Further, a protrusion 15b is provided on the back side of the rotary plate 15, and this protrusion 15b is displaceably fitted in a long hole 17c of a stopper member 17 described later.

The stopper member 17 is provided between the rotary plate 15 and the bottom plate 4d fixed to the rear portion of the handle frame 4 with screws 18 or the like so that the stopper member 17 can slide a small distance in the radial direction of the handle frame 4. You are being guided.

Further, as shown in FIG. 8, the stopper member 17 is composed of a main body portion 17a and an engaging portion 17b, and a long hole 17c into which the projecting piece 15b of the rotary plate 15 is fitted is formed in the main body portion 17a. It is open.

Therefore, when the working body 11 is rotated by a predetermined angle, for example, 90 degrees by the coins or the duplicate key 30, the projecting piece 15 b which is integrally rotated and displaced with the rotation of the rotary plate 15 has the length of the stopper member 17. The stopper member 17 is linearly slid and displaced while moving in the hole 17c. That is, the rotary motion of the rotary plate 15 is converted into the linear motion of the stopper member 17.

The protrusion 15 b of the rotary plate 15 and the elongated hole 17 c of the stopper member 17 constitute one cam means 20. In other words, the cam means 20 provided between the rotary plate 15 and the stopper member 17 converts the rotary motion of the rotary plate 15 into the projecting / inserting motion of the stopper member 17 from the handle frame 4.

The cam means 20 is not limited to the one shown in the drawing, and any cam mechanism having the above-mentioned action can be designed. For example, it is possible to use a cam means in which a long hole is provided in the rotary plate 15 and a projecting piece is provided in the stopper member 17.

Further, although the stopper member 17 in the illustrated example slides linearly and protrudes from the handle frame 4, the stopper member 17 is provided on a part of the handle frame 4, for example, the bottom plate 4 d along the horizontal axis. Alternatively, the handle frame 4 may be pivotally attached to the handle frame 4 so that the handle frame 4 protrudes. In this case, of course, at least the position and shape of the elongated hole in the cam means may change.

When the stopper portion 17 is displaced so that the engaging portion 17 b projects through the through hole 21 formed in the handle frame 4, the engaging portion 17 b engages with the engaging hole 22 formed in the fixed base frame 1. It is stopped or its lock is released.

When the stopper member 17 is in the locked state, the handle frame 4 is locked with respect to the fixed base frame 1. Therefore, the hanging metal fitting 7 fixed to the central axis 5 of the handle frame 4 is the door. It can be held in a state of being hung on the frame or the other door.

When the stopper member 17 is unlocked, the handle frame 4 becomes rotatable, the latch 7 can be turned in the direction of arrow B in FIG. 1 to unlock the latch, and the door 2 can be opened. become.

Reference numeral 23 in FIG. 1 denotes a torsion spring also called a thought spring provided between the handle frame 4 and the fixed base frame 1, and the counterclockwise direction is generated in the process of the first half of the rotation of the handle frame 4. It has a slight resistance to and is urged in the rotational direction in the latter half of the rotation. Reference numeral 23 'indicates the position of the torsion spring when the handle frame 4 is turned 90 degrees in the direction of the arrow B to unlock the hook 7.

[0043]

[Effect of device]

 As is apparent from the above description, according to the simple lock of the present invention, by exposing only the handle frame, which is the rotating member, on the outer surface of the door, the handle frame and the knob integrated therewith can be formed relatively large. As a result, it is very easy to open and close the door as well as to hang the hanging metal fittings. Also, a person with a large hand can operate by gripping the outer peripheral portion of the handle frame.

Further, the locking mechanism of the present invention exhibits a reliable locking action despite the compact structure such that the locking mechanism can be accommodated in the limited space in the flat handle frame, so that the meter for gas etc. It is suitable for use in room doors and has the effect of preventing the doors from opening and closing due to mischief such as children.

[Brief description of drawings]

FIG. 1 is a front view showing a locked state of a simple lock according to an embodiment of the present invention.

2 is a vertical sectional side view taken along line II-II in FIG.

FIG. 3 is a side view of an acting body.

FIG. 4 is a vertical sectional side view thereof.

FIG. 5 is a vertical plan view thereof.

FIG. 6 is a partial vertical sectional side view of a rotation preventing member.

FIG. 7 is a rear view of the rotating plate.

FIG. 8 is an external perspective view of a stopper member.

FIG. 9 is a plan view of a duplicate key.

[Explanation of symbols]

 1 Fixed Base Frame 1a Flange 2 Door 4 Handle Frame 4a Flange Part 5 Center Axis 7 Hooking Metal Fitting 11 Acting Body 11a Key Hole 11c Leg Piece 11e Groove 12 Locking Member 13 Spring 15 Rotating Plate 16 Projection Piece 17 Stopper Member 17c Long Hole 20 Cam Means 30 Compound key 50 Lock mechanism

Claims (4)

[Scope of utility model registration request] 1. A bottomed cylindrical handle frame having a flange portion and a knob portion having a size for covering the above-mentioned flange can be rotated by a predetermined angle with respect to a dish-shaped fixed base frame having a mounting flange on the periphery. Mounted on the inside of the handle frame so that the tip end of the central shaft is protruded rearward from the fixed base frame to attach a hook for locking the door. An operating body with a groove for inserting coins, which has a piece and can be selectively rotated by a predetermined angle, a rotating plate which engages with a leg piece of the operating body and can be rotated together with the operating body, and a handle frame Is provided between the rotary plate and the stopper member, which is inserted from the handle frame to selectively lock the handle frame with respect to the fixed base frame, and the rotary motion of the rotary plate is projected from the handle frame. A cam hand that transforms into a movement A simple lock characterized by having a locking mechanism consisting of steps. 2. The simple lock according to claim 1, wherein the cam means is composed of a projecting piece provided on the rotary plate and an elongated hole provided on the stopper member into which the projecting piece is displaceably fitted. 3. A bottomed cylindrical handle frame having a flange portion and a knob portion which are sized to cover the above-mentioned flange can be rotated by a predetermined angle with respect to a dish-shaped fixed base frame having a mounting flange on the periphery. Mounted on the inside of the handle frame so that the tip end of the central shaft is protruded rearward from the fixed base frame to attach a hook for locking the door. An action body with a keyhole that has a piece and can be selectively rotated by a predetermined angle, and is urged toward the action body,
A non-rotatable detent member that removably engages the working body, a rotating plate that engages the leg pieces of the working body and can rotate together with the working body, A stopper member that selectively locks the handle frame with respect to the fixed base frame, and a cam that is provided between the rotating plate and the stopper member and converts the rotational movement of the rotating plate into a projecting insertion movement of the stopper member from the handle frame. A simple lock comprising a lock mechanism composed of a means. 4. The simple lock according to claim 3, wherein the cam means comprises a projecting piece provided on the rotary plate and an elongated hole provided on the stopper member into which the projecting piece is displaceably fitted.