JPH0978909A - Positioning device for index in dial lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regularly situate the index of a dial in the same angle position in any opening manner of door in a mailbox or the like. SOLUTION: In a dial lock, a locking piece 6 is fixed to the tip of a shaft body 15 in a frame body 1 for supporting rotating bodies 2, 3 by a screw 93 so as to be situated in the center in the front surface of a dial 5. A lid member 8 having an index and an engaging leg piece 82 is engagingly fixed to the fixing piece 6 with its angle position being optionally selected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an index positioning device for a dial lock used for a door of a mail box or the like.

[0002]

2. Description of the Related Art As shown in FIGS. 1 (A) to 1 (D), a door 10 of a mail box or the like has a right-hand, left-hand, upper-hand or lower-hand opening depending on a mounting position of a hinge 20. The type changes like a selfish hand.

Therefore, the orientation of the latch 30 of the dial lock is also different depending on the hand, and at the same time, the position of the index 40 for character alignment provided on the main body (frame body) side of the lock is also different, for example, vertically and horizontally. come.

Generally, the index 40 is usually set in the upper position, and it is inconvenient and confusing for the user that the position changes every time the door is opened.

It is also conceivable that four types of dial locks are prepared according to the inconsistency of the door 10 as shown in FIG. It is not efficient in terms of inventory management.

[0006]

The index positioning device for a dial lock according to the present invention has an index for a dial lock regardless of whether the opening of a mail box or the like is right-handed, left-handed, upper-handed or lower-handed. Is always proposed to be able to occupy the same angular position (for example the upper position).

[0007]

In order to achieve the above object, the index positioning device for a dial lock according to the present invention comprises a hollow frame body and a plurality of rotary bodies which are coaxially supported in the frame body and are rotatable relative to each other. , Engaging means provided between two adjacent rotating bodies for selectively engaging, notches for unlocking provided in a plurality of rotating bodies, one front side of the rotating bodies connected in at least the rotating direction A dial that also serves as a knob exposed to the outside, and a dial lock that includes a latch that is swingably held in the frame body and that is urged in a direction to project this portion outside the frame body. At the tip of the shaft body in, the fixing piece is fixed with a screw so as to be located in the center on the front side of the dial, and the fixing piece has a plurality of elastically deformable engaging leg pieces having an index on the front side and on the back side. The lid member that has the angle position Arbitrarily selected and characterized by engaging wear.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in FIGS. Reference numeral 1 is a hollow frame body composed of a cylindrical latch holder 11 having a latch mounting hole 13 and a latch spring mounting hole 14 and a cylindrical outer case 12 having a flange 16, and the latch holder 11 and the outer case 12 are mutually replaceable. Are fastened to each other and fixed with screws 91. Reference numeral 92 denotes a mounting screw for fixing the flange 16 of the outer case 12 to the door 10 such as a mail box.

The tip end of the latch holder 11 in the frame 1 is formed on an integral shaft body 15, and the shaft body 15 supports a plurality of (two or three) rotating bodies 2 and 3.

The plurality of rotating bodies 2 and 3 are coaxially rotatable independently of each other, and the rotating bodies 2 and 3 can be arbitrarily formed into a cylindrical shape, a disc shape, or the like.

Between the two adjacent rotating bodies 2 and 3, there is provided an engaging means 4 which is so-called a hook which can be selectively engaged during one relative rotation.

The engaging means 4 in the illustrated example is integrated with the inner rotary body 2 at the front surface of the outer rotary body 3 and a pin 41 which is planted on the rear surface of the dial 5 which will be described later. And a projecting piece 42 projecting from the base.

Notches 21 and 31 for unlocking are formed at the rear portions of the plurality of rotary bodies 2 and 3, respectively. When the notches 21 and 31 are aligned by the dial 5 and aligned at the same and predetermined angular position (see FIG. 4), the swing of the latch 7 described later is allowed and the notch is unlocked. Become.

Further, at the outer end of the inner rotating body 2 which is one of the rotating bodies, a stepped hollow cylindrical body is connected to the inside of a cup body having a bottom, and also serves as a knob exposed to the front side. The dial 5 is integrally connected.

In the illustrated embodiment, the inner rotating body 2 and the dial 5 are engaged by splines formed on the outer peripheral surface of the former outer end and the inner peripheral surface of the inner end of the latter stepped hollow cylindrical body, respectively. They are connected to each other and are coupled in a state in which they are restrained so as not to move in the axial direction by a bottomed cylindrical stopper piece 6 fixed to the outer end of the shaft body 15 by a screw 93.

As shown in FIG. 2, on the front surface of the dial 5, for example, numbers and characters "0" to "9", "A" and "B" are displayed.

The outer rotating body 3 and the inner step outer peripheral surface of the inner stepped hollow cylindrical body of the dial 5 are both formed in a polygonal cross section (for example, a dodecagonal shape), and a click spring is formed in that portion. 32 is in elastic contact so as to straddle both.

On the other hand, in FIG. 4, reference numeral 7 is a latch which is swingably and slidably held in the latch mounting hole 13 of the latch holder 11 in the frame body 1 and has a sloped surface 71 on its head. Is urged by the latch spring 72 housed in the latch spring mounting hole 14 in a direction in which the head portion projects out of the frame body 1.

Further, reference numeral 73 in the figure is planted in the latch 7, and the tip is fitted into a groove (not shown) formed in the latch holder 11 to linearly guide the latch 7, or the latch 7 has a linear shape. A latch shaft that serves as a center during swinging, 74 is an elastic resistor held by the latch holder 11, 75 is an induction groove provided on the surface of the latch 7 and the tip of the elastic resistor 74 is fitted, and 76 is the latch holder 11 It is a buffer held by.

The basic structure or operation of such a dial lock is disclosed, for example, in Japanese Utility Model Application Laid-Open No. 57-38449 or Japanese Patent Application Laid-Open No. 4-92067.
The operation of the dial lock having the above structure will be briefly described.

When locking, referring to FIG. 4, the door 10 may be pushed in the direction of arrow P. At this time, when the head of the latch 7 comes into contact with the locking piece 60 of the mail receiver 50, the slope 71
Although it is once pushed into the frame 1 by the wedge action generated between the locking piece 60 and the locking piece 60 (see the alternate long and short dash line), it is again projected and locked by the biasing force of the latch spring 72.

In the state shown in FIG. 4, since the dial 5 is set at the unlocked angular position, it is necessary to turn the dial 5 appropriately in order to bring it into the locked state.

When unlocking, the dial 5 is turned clockwise or counterclockwise once to align the letters / numerals in the first operation with the index 81, and then the dial 5 is turned in the opposite direction to the predetermined letters / characters in the second operation. Adjust the number to the index 81.

By such an operation, the unlocking notches 21 and 31 of the rotating bodies 2 and 3 are aligned at a predetermined angular position, so that the dial 5 also serving as a knob is pulled in the direction opposite to the arrow P. For example, the back portion of the latch 7 is pushed by the locking piece 60 and the latch 7 swings as shown by the chain double-dashed line. That is, the dial lock is unlocked and the door 10 is opened.

Next, the essential part of the present invention will be described.
A cylindrical stopper piece 6 having a bottom is brought into contact with the tip of the shaft body 15 of the latch holder 11 in the frame body 1 so as to sandwich the dial 5 also serving as a knob, and the stopper piece 6 is screwed to the shaft body 15 with a screw 93. Fix it.

At this time, the stopper piece 6 is mounted in the concave portion 51 provided in the outer center portion of the dial 5, and the dial 5 is integrally connected to the inner rotary body 2 in the rotational direction.

The lid member 8 fixedly attached to the stopper 6 has an index 81 on the front side (see FIGS. 2 and 3), and a plurality of elastic deformations on the back side around it. It has possible engagement legs 82.

Each engaging leg piece 82 has a claw integrally formed at the tip thereof, and the claw is, for example, 90 ° on the outer circumference of the stopper piece 6.
It is hooked on the engaging recesses 62 (see FIG. 7) provided at intervals.

In the illustrated embodiment, the front plate 83 of the lid member 8 is formed separately from the lid member 8 (frame member), and is fixed by fitting from the rear (back surface) side of the lid member 8. There is. Both members 8 and 83 may of course be manufactured integrally.

In the dial 5 also serving as the knob shown in FIG. 2, since the latch 7 projects to the left and the index 81 is located above, when the dial 5 is used for a right-handed door [(A) in FIG. 1]. , It may be fixed to the door 10 as it is, but for example, when it is used for a left-handed door [(B) of FIG. 1],
Since the index 81 is located below, it is difficult to align characters.

The index positioning device of the present invention is convenient to use in such a case. That is, the lid member 8 is placed on the stopper 6 in the dial 5 without being engaged until the door is determined, and the index 8 is set when the door is determined.
The lid member 8 may be finally fitted so that 1 is located above.

For example, when used for a left-handed door [(B) of FIG. 1], if the lid member 8 is fitted into the stopper piece 6 so that the index 81 is located at "6" in FIG. After attaching the lock, the index 81 will occupy the upper position.

However, in that case, it goes without saying that the designated character is displaced by 180 ° (the angle by which the index 81 is changed).

5 and 6 show a state in which the lid member 8 is temporarily fitted to the stopper piece 6 by using the auxiliary tool 80 formed of a thin and long plate-like piece.

As is apparent from FIG. 6, this assisting tool 80 extends so as to sew a gap between the engaging leg pieces 82, 82 in a state where the lid member 8 is slightly floated from the stopper piece 6, and is engaged. The claws at the tips of the compound leg pieces 82 are prevented from fitting into the engaging recesses 62 of the stopper pieces 6.

That is, the engaging leg pieces 82 of the lid member 8 are engaged with the annular temporary fixing groove 61 (see FIG. 7) formed on the outer peripheral portion of the outer end of the stopper piece 6, and the lid member 8 is stopped. If the door is determined to be free, the auxiliary member 80 is used to rotate the lid member 8 at a required angle, and then the auxiliary member 80 is pulled out and the lid member 8 is pushed in. With 81 occupying the desired position, the lid member 8 is irremovably attached.

The concave portion 51 of the dial 5 and the stopper piece 6
The front shape of the cover member 8 and the cover member 8 are both formed in a circular shape in the illustrated example, but may be formed in other shapes such as a square shape.

[0038]

According to the index positioning device for a dial lock of the present invention described above, the index can be used regardless of whether the door of a mail box or the like is opened by the right hand, the left hand, the upper hand or the lower hand. Since the lid member having the lock can be attached to the fixed stopper at a desired angular position, the index can always occupy the same angular position by using only one kind of dial lock. Not only is it convenient for users, but it also has the effect of improving efficiency in production and inventory management.

[Brief description of drawings]

FIG. 1 is a front view showing an example of use of four types of general dial locks (A) to (D).

FIG. 2 is a front view showing an embodiment of an index positioning device for a dial lock according to the present invention.

FIG. 3 is a side view thereof.

FIG. 4 is an enlarged vertical plan view taken along line IV-IV of FIG.

5 is a front view of the embodiment of FIG. 2 showing a state before use in which a lid member is temporarily fitted using an auxiliary tool.

FIG. 6 is an enlarged vertical plan view thereof.

FIG. 7 is a side view of the stopper piece.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 15 Shaft 2 Rotating body 21 Notch for unlocking 3 Rotating body 31 Notch for unlocking 4 Engaging means 5 Dial also serving as a knob 6 Stopping piece 61 Temporary fixing groove 62 Engagement recess 7 Latch 8 Lid member 81 Index 82 Engagement leg

Claims (1)

[Claims] 1. A hollow frame body, a plurality of rotary bodies coaxially supported in the frame body and rotatable with respect to each other, engaging means provided between two adjacent rotary bodies for selectively engaging, and a plurality of rotary bodies. An unlocking notch provided in each of the rotating bodies, one dial of the rotating body connected at least in the rotating direction, a dial also serving as a knob exposed on the front side, and a swingably held inside of the frame body, and a head portion. In a dial lock provided with a latch biased in a direction of projecting to the outside of the frame, a stopper is screwed to the tip of the shaft in the frame supporting the rotating body so that it is positioned in the center in front of the dial. A dial lock characterized in that a lid member having a fixed index piece on the front side and a plurality of elastically deformable engaging leg pieces on the back side is fixed to the stopper piece by arbitrarily selecting its angular position. Positioning device for index in.