JPS60112967A - Cylinder lock - 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 cylinder lock, and more particularly, an inner cylinder, an intermediate cylinder, and an outer cylinder are combined so as to be relatively rotatable, and the inner cylinder, the intermediate cylinder, and the intermediate cylinder and the outer cylinder are each locked or locked by a locking means. The purpose is to simplify the structure of the locking means in the inner cylinder and the intermediate cylinder, which can be rotated relative to each other by using a spare key as well as a master key to unlock the lock.

Embodiments of the present invention will be specifically described below with reference to the drawings.

The cylinder lock of the present invention includes an outer cylinder (1), an intermediate cylinder (2) rotatably fitted in the outer cylinder, and an inner cylinder (3) rotatably fitted in the intermediate cylinder. Equipped with:

A first locking member (4) that prevents relative rotation between the inner cylinder (3) and the intermediate cylinder (2) is located between the inner cylinder (3) and the intermediate cylinder (2), and the locking member is inserted into the keyhole (5) of the inner cylinder. It is unlocked with a key (6) and allows rotation of the inner cylinder with the key.

Specifically, a pin tumbler is used as the seventh locking member (4), including an upper pin (7), a lower pin (8) and an intermediate pin (9).
) are inserted into the pin holes GO, αυ provided in seven rows at the center of the inner cylinder (3) and the intermediate cylinder (2), and are ejected by the spring a2 in the pin hole oo. The key (6) is inserted into the keyhole of the inner cylinder (3) (
5) When not inserted into the inner cylinder, the upper pin (7) straddles the rotating surface between the inner cylinder (3) and the intermediate cylinder (2) to prevent relative rotation. When the spare (6a) is inserted, the abutting surfaces of the 7 sets of lower pins (7) and lower pins (8) and the upper pins (7) and intermediate pins (9) of 7 sets are aligned as shown in Figure 9. The inner cylinder can rotate in accordance with the rotational planes of the inner cylinder (3) and the intermediate cylinder (21).When the master key (6b) is inserted, the 7
The upper pin (7) and lower pin (8) of the set and the middle pin (
9) and the lower pin (8) match the rotating surfaces of the inner cylinder (3) and the intermediate cylinder (2), allowing the inner cylinder to rotate. The inner cylinder (3) has an annular layer 03 on its outer periphery, and the intermediate cylinder (2)
The tip of the screw 0φ screwed into the screw hole is inserted into the annular groove 0
3, and is connected to the inner intermediate cylinder so that only rotation is possible.

Between the intermediate cylinder (2) and the outer cylinder (1), there is a d-th lock hole θO.
The locking member is incorporated into the intermediate cylinder so as to reciprocate between a protruding position and a retracted position, and is provided in the outer cylinder (1) so as to correspond to both ends of the rotation angle of the intermediate cylinder (2). engages with the engaging portions (16a) and (16b) in the locked position to lock the lock;
Furthermore, the inner cylinder (3) is unlocked according to its rotational movement, and the inner cylinder (3) and intermediate cylinder (2) are unlocked by the rotational movement of the inner cylinder (3). is transmitted to the intermediate cylinder (2) to rotate the intermediate cylinder from one locking position to the other locking position. The intermediate cylinder (2) operates a driven body 0'71 such as a lock or a switch by its rotational movement.

The No. 1 lock member συ is composed of a large-diameter cylindrical main body lJθ and a small-diameter cylindrical protrusion q9 protruding from its upper end,
It is slidably incorporated into the guide hole 0] which reaches the inner cylinder insertion hole @ from the outer peripheral surface of the intermediate cylinder (2) in the diametrical direction.

A concave spring receiver (A) is formed at the lower end of the main body αe,
A coiled compression spring (c) is provided between the spring receiver (a) and the spring receiver (a) on the intermediate cylinder (2) side, which is provided at a position facing the spring receiver. is constantly fired in the direction of protrusion. Therefore, when the locking member aO is in the locked position, its protrusion u9 engages with the engaging portions (16a) and (16b) of the hole bored in the outer cylinder (1), thereby preventing the intermediate cylinder from rotating. Both engaging parts (16a), (16b)
has a gap of 90 degrees, and while the protrusion 09 moves from one engagement part to the other engagement part, the protrusion slides while being pressed against the inner peripheral surface of the outer cylinder (1). , when the other engaging portion is reached, the barb (c) automatically engages and locks the intermediate cylinder (2). Therefore, the rotation angle of the intermediate cylinder (2) is also set to 90 degrees.

A cam (c) is formed at the rear end of the inner cylinder as a means for transmitting the rotational movement of the inner cylinder (3) to the locking member α0 and reciprocating the locking member linearly, and a cam that receives the cam is formed at the rear end of the inner cylinder. ) is formed on the lock member.

The cam (C) is an isosceles triangle, and its center line ■ is the inner cylinder (3
) overlaps the vertical center line 0]) including the keyhole (5),
The apex angle) exists on the outer circumferential surface of the inner cylinder, and the bottom angle) exists in a range parallel to the lateral center line (7) of the inner cylinder and does not exceed the center line (7).

The cam receiver (c) is formed in the notch of the main body 09 of the locking member αO, and extends in the lateral direction of the main body 0θ, and its width is the same as that of the bottom of the cam (c). Above the cam receiver (C), there are two slopes (32a) forming an isosceles triangle.
(3;)b,) extend symmetrically diagonally upward from the longitudinal centerline ■ of the main body α shuttle, allowing rotation of the cam (c) within a predetermined range, and allowing both slopes to intersect. The corner (2) limits the rotation angle of the cam.

The protrusion 09 of the locking member α0 is the engaging part (16a) of the outer cylinder (1)
(Fig. 7), the cam (8) of the inner cylinder (8)
The bottom surface (to) of C) engages with the cam receiver (C) of the locking member oo to hold the locking member in the protruding position.

In this state, the locking member (le) is oriented to the right along with the intermediate cylinder (2) and the inner cylinder (3), and the pin (a) protruding from the intermediate cylinder (2) is aligned with the outer cylinder (1). The inner cylinder (3) is located on the left side when viewed from the front, and the inner cylinder (3) is located on the left side when viewed from the front. The middle cylinder (2) (3 pairs) is rotated clockwise or counterclockwise by the main key or the spare key (Fig. 7), and each of the three pairs is rotated by ￥j degrees.

When the cam (c) is rotated counterclockwise from the position shown in FIG. 16a), and the slope (31a) of the cam (c) hits the corner (2) of the locking member Q6, so that the inner cylinder (3) and the outer cylinder (1) will rotate together from then on. Connect each other (Figure 1).

Therefore, when a further counterclockwise rotational force is applied to the inner cylinder (3), the inner cylinder (8) moves until the pin of the intermediate cylinder (2) hits the other stopper of the outer cylinder (1). Rotate the tube (2) 90 degrees counterclockwise and remove the intermediate tube (2) and lock member OQ.
takes the left<tS degree direction (diagonal direction), the inner cylinder (3) takes the left 2θ degree direction (lateral direction) together with the cam (c), and the protrusion θ9 of the lock member engages the outer cylinder (1). The retracted position corresponding to section (16b) is reached (FIG. 2).

When the counterclockwise rotational force on the inner cylinder (3) is released,
The locking member 00 is pushed out to the protruding position by a spring (c), and its protrusion θ9 fits into the engagement portion (16b) of the outer cylinder (1),
Lock the intermediate cylinder (2) with respect to the outer cylinder (1) in the leftward direction (Figure 70, Figure 1/Figure). According to the protrusion of the locking member αQ, the cam (c) is rotated counterclockwise by the cam receiver (c) from the direction of 9θ degrees to the left to the direction of xis degrees to the left, takes the same direction as the locking member aθ, and rotates the inner cylinder (3 ) is aligned with the pin hole QO of the intermediate cylinder (2), allowing the key to be removed from the keyhole (5). The inner cylinder (3) is on the right side when viewed from the front, the keyhole (5) is oriented diagonally to the left, and just by looking at the keyhole or the inner cylinder, the intermediate cylinder (2) has reached the left end of the rotation angle. You can know that (Figure 1/Figure).

To rotate the lock member α from the left gt degree direction to the right gt degree direction, use the key to rotate the inner cylinder (3) to the left m
Rotate gt degrees from s degrees to θ degrees (vertical direction) and rotate the cam (
Unlock the lock member 0υ using the cam receiver (c) and the cam receiver (c) (Figure 2). When the inner cylinder (3) is further applied with a clockwise rotational force of GT degrees to rotate the inner cylinder and the outer cylinder integrally in the same direction, the lock member moves to the right position of the engagement part of GT degrees and the cam receiver ( b) is reversed from the right 2θ degree direction (lateral direction) to the '13 degree counterclockwise direction by the force of the spring, and at the same time the lock member α0 protrudes and its protrusion connects to the right engaging portion (t6a). can be engaged and the key can be removed (Fig. 70, Fig. 1/Fig.).

In this case, the inner cylinder (3) moves to the right and the keyhole (5) moves to the right.
) takes a diagonal direction to the right, and it is possible to know that the intermediate cylinder (2) has reached the right end of the rotation angle just by looking at the keyhole or the inner cylinder.

In order to operate a driven body such as a lock lever or a switch, an operating member (to) is provided at the rear end of the intermediate cylinder (2) so as to rotate together with the intermediate cylinder (2). This operating member (c) is the intermediate cylinder (
2) Formed by a round rod with a smaller diameter, the rear end wall of the outer cylinder (toward)
It protrudes from the hole 071 of the lock lever (
(not shown) can be made to appear and appear, and electric switches can be opened and closed.

When used as a lock lever, an arm-shaped cam (not shown) is fixed to the operating member (1), the cam is connected to the lock lever, and the lock lever is linearly reciprocated as the cam swings.

When used in an electric switch, the operating member (c) is formed with a curve (c) that intersects the cylindrical outer circumferential surface with an obliquely cut slope of the outer circumferential surface, and this curve is used as the switch α as a driven body.
The two actuating pieces ogl and i are brought into contact with each other, and the actuating pieces are swung according to the rotation of the curve.

Two switches α are attached to a bracket ■ fixed to the rear end wall (G) of the outer cylinder (1), and the operating pieces of each switch are pressed against the curve (C) of the operating member and are in contact with each other. .

When the intermediate cylinder (2) is at the right end position of its rotation angle (Figs. 2 and 3), the curve (C) of the operating member (2)
The relatively raised contact point of one switch actuating piece 0
When the switch is pushed in, the relatively lowered contact point pulls out the other switch operating piece.

When the intermediate cylinder (2) moves from the right end to the left end of its rotational angle (Figs. 72 and 73), the operating member (curve ⑒) acts inversely on each operating piece of the switch, causing the rotation of the rotating cylinder. Accordingly, - switches are alternately opened and closed.

Of course, the number of switches may be seven.

As described above, the present invention provides the intermediate cylinder (2) between the inner cylinder (3) and the outer cylinder (1), and restrains and releases the relative rotation of the inner cylinder and the intermediate cylinder between them. A key inserted into the first locking member (4) and the inner cylinder to unlock the locking member is used to restrain and release the relative rotation between the intermediate cylinder and the outer cylinder, and the λ-th locking member αO between them and an inner cylinder that unlocks the locking member, the inner cylinder rotates the intermediate cylinder in the unlocked state of the intermediate cylinder, and the rotational movement of the intermediate cylinder is used to lock a driven body such as a lock lever or a switch.
Since the mechanism is configured to operate the locking mechanism, the structure of the locking means between the inner cylinder and the intermediate cylinder, which are rotated relative to each other, can be simplified even by a parent as well as a spare.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a front view, FIG. 2 is a side view, FIG. 3 is a plan view, and FIGS. 9 and 5 are sectional views taken along the line A-A in FIG. 3. Figure 3 is a sectional view taken along the line B-B in Figure 9, Figures 2 to 70 are sectional views taken along the line CC in Figure 9, Figure 1/Figure 1 is a front view, and Figure 7.2 is a partial view. The cutaway side view and FIG. 73 are partially cutaway plan views. In the figure, (1) is the outer cylinder, (2) is the intermediate cylinder, (3) is the inner cylinder, (
4) is the first lock member, αQ is the second lock member, 0 is the follower switch, (2) is the spring, (C) is the cam, (G) is the cam receiver, 03 is the bottle, (B) is The stopper, (c) is an operating member, and (g) and C+& are operating pieces. Patent applicant Nippon Kaganu Seisakusho Co., Ltd.

Claims (1)

[Claims] / An outer cylinder, an intermediate cylinder, and an inner cylinder are rotatably fitted to each other,
A seventh lock member is provided between the inner cylinder and the intermediate cylinder to prevent relative rotation between the two, and a second lock member is provided between the intermediate cylinder and the outer cylinder to prevent relative rotation between the two. The seventh lock member is unlocked by a key inserted into the inner cylinder to enable rotation of the inner cylinder by the key, and the second lock member is incorporated into the intermediate cylinder so as to reciprocate between a protruding position and a retracted position. , and engages with an engaging part at a locking position provided on the outer cylinder so as to correspond to both ends of the rotation angle of the intermediate cylinder, locking the outer cylinder which is the intermediate cylinder, and further follows the rotational movement of the inner cylinder. When the inner cylinder and intermediate cylinder are unlocked, the rotational movement of the inner cylinder is transmitted to the intermediate cylinder, and the intermediate cylinder is rotated from one locked position to the other locked position. , a cylinder lock in which a driven body such as a lock lever or switch can be operated by the rotational movement of the intermediate cylinder. λ The cylinder lock according to claim 1, wherein the first lock member is unlocked by a specific child key and a master key that is commonly used for a plurality of sets of child locks with different keys. 3. The cylinder lock according to claim 2, wherein the seventh lock member is a pin tumbler. The cylinder lock according to claim 2, wherein the seventh lock member is a disc tumbler. The locking member marked "j" is constantly urged in the protruding direction by a spring, and is pressed against the inner circumferential surface of the outer cylinder while moving from one engaging part to the other engaging part. When it reaches '@+1, it automatically engages and locks the intermediate cylinder, and the cam protruding from the rear end of the inner cylinder engages with the cam receiver formed on the second locking member, and as the cam rotates, the spring is released. The cam is unlocked by being moved in the retracting direction against the force, and the rotation angle of the cam is limited by the cam holder to the first locking member from the locked position to the unlocked position, and beyond the unlocked position. A cylinder lock according to any of the above claims, wherein the cam serves to rotate the intermediate cylinder. B In order to stop the above intermediate cylinder at its locked position,
The cylinder lock according to any one of claims 1 to 2, wherein a stopper is provided on the outer cylinder side, and a protrusion corresponding to the stopper is provided on the intermediate cylinder side. 7. The cylinder according to any one of claims 1 to 2, wherein a switch is coupled to the rear end of the outer cylinder as the driven body, and an operating member for opening and closing the switch is provided in the intermediate cylinder so as to rotate together with the switch. Tablet. The above switches are installed on the λ side, and each switch has an actuating piece that opens and closes them, and the engaging part of the actuating member is a curved line that intersects the outer peripheral surface of the cylinder with a slope cut diagonally through the cylinder. 8. The cylinder lock according to claim 7, wherein the cylinder lock is formed so that the switches open and close mutually.