JP2649099B2 - Door locking device - Google Patents

Description

The present invention relates to a lock device for a door attached to a door of a vending machine, a locker or the like according to the present invention.

"Prior art" Conventionally, as this kind of lock device, for example, Japanese Patent Publication No. 49-47
There was one embodiment disclosed in Japanese Patent Publication No. 560.

In this embodiment, as shown in FIG. 10, a handle 3 serving also as a lock outer cylinder slidable in the axial direction in conjunction with rotation of the lock inner cylinder 5 by a key (not shown), and interlocking with the axial movement of the handle And an intermediate cylinder 2 that rotates inside the lock housing 1 and a lock member integrally connected to the intermediate cylinder.
The handle 3 can be pulled out of the lock housing 1 when unlocked by a key, and is locked by the rotation of the intermediate cylinder 2 interlocked with the pulling of the handle 3 when unlocked by the key. The member is at an unlocking position.

However, in the lock device having the above configuration, the lock inner cylinder 5 cannot be automatically pulled out, and the locking piece 6 is provided at the rear end of the lock inner cylinder 5 stored in the handle 3 with the screw 8. When removing the lock inner cylinder 5 as a cylinder lock from the handle 3, the screw 8 must be removed with a screwdriver. Therefore, when replacing the lock inner cylinder with another lock inner cylinder, Had the disadvantage of being very cumbersome.

"Problems to be Solved by the Invention" In view of the above-mentioned conventional drawbacks, the present invention can automatically eject a required amount of a lock handle from a lock housing simply by unlocking a cylinder lock with a key. The cylinder lock can be easily removed from the lock handle, the cylinder lock can be engaged with the lock handle with one touch, and the cylinder lock can be prevented from being stolen by a thief. The aim is to obtain a door locking device that is not easily pulled out of the handle.

"Means for Solving the Problems" The door locking device of the present invention comprises a lock housing 11 having a fitting recess 15.
A sleeve-shaped lock member 28 that is provided inside the lock housing and has a rear end 28d protruding from the rear portion of the lock housing, and an insertion body 2 that can receive a part 28a of the lock member 28.
2 and a lock handle 21 having a handle portion 23 fitted into the fitting recess so as to be substantially the same as the surface of the lock housing, and a lock handle provided in the lock housing 11 and constantly popping out. A spring member 30 biasing in the direction, and a cylinder lock 31 fitted into the fitting hole 24 of the lock handle so that the surface does not substantially protrude, and a male screw 32 formed in an outer cylinder 32 of the cylinder lock 31 is provided. Screwing the engagement ring 35, while pivotally supporting the latch member 40 having the engagement claw portion 40b engaged and disengaged with the engagement ring 35 to the lock handle 21,
The rotation of the latch member 40 causes the cylinder lock 31 to be disengaged from the lock handle 21.

In the above configuration, the male screw 32 is not necessarily formed on the outer cylinder 32A of the cylinder lock 31, and the engagement ring 3 is attached to the outer cylinder 32A.
5A is provided integrally, while a latch member 40 having an engagement claw portion 40b engaging and disengaging from the engagement ring 35A is pivotally supported by the lock handle 21.
31A is disengaged from the lock handle 21.

[Operation] The door locking device of the present invention is attached to a door of a vending machine, a locker or the like so as to be substantially flush with the surface of the door.

Therefore, when opening the door of a vending machine or the like, first insert the key into the cylinder lock and rotate the inner cylinder of the cylinder lock. Then, the latch provided on the lock handle is disengaged from the engagement hole of the lock housing, and the lock housing is moved by the spring force of the spring member provided between the latch mounting portion and the sleeve-shaped lock member. Jump out the required amount outward. Next, when the lock housing is rotated, the sleeve-shaped lock member that fits into the drug lock handle and whose rear end projects from the lock housing rotates, and as a result, is fixed to the rear end of the sleeve-shaped lock member. The locked plate is disengaged from the engaged portion of the vending machine or the like, whereby the door can be opened.

On the other hand, when the cylinder lock is further removed from the lock handle, the latch member, which partially protrudes from the lock housing, is pressed with the thumb or the like to rotate the latch member, and the cylinder lock is held as it is via the key. Pull out from the lock handle. For example, when fitting a different Siridan lock conforming to the standard into the lock handle, when the cylinder lock is pressed firmly into the lock handle, the cylinder lock is locked by a latch member such that the engagement ring is snapped. And is stored in the lock handle.

"Example" Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

In the embodiment shown in FIGS. 1 to 9, X is a door locking device which is attached to a door 10 such as a vending machine or a locker so as to be substantially flush with the surface 10a of the door. The lock device X basically includes a lock housing 11 fixedly attached to a door 10 and a lock stored in the lock housing 11 such that the surface of a handle portion is the same as the surface of the lock housing. The lock comprises a combination of a handle 21 and a cylinder lock 31 stored in the lock handle so that the surface of the lock is substantially the same as the surface of the lock handle. Therefore, the basic members 11, 21, 31 will be described in more detail.

First, in the lock housing 11, reference numeral 12 denotes a fitting attachment portion having a peripheral wall formed in a track shape, 13 denotes a flange portion provided in a protruding wall shape at the front end of the fitting attachment portion 12, and 14 denotes a fitting portion. A cylindrical protruding portion formed into a cylindrical shape at a position near the upper end of the rear end of the mounting portion, 15
Is a fitting recess formed in the front of the fitting mounting portion and the flange portion in the shape of an old keyhole for fitting a handle portion to be described later, and 16 is a fitting mounting portion so as to be orthogonally connected to the fitting recess. A fitting hole penetrated through 12 and the cylindrical projecting portion 14, 17 is a storage groove for storing a later-described latch member formed in an appropriate portion of an inner wall of the fitting mounting portion where the fitting hole is formed, 18 Is a rectangular engagement hole formed below the peripheral wall surface of the cylindrical protrusion 14 and engages with a vertical latch described later.

Next, in the lock handle 21, the reference numeral 22 denotes the fitting mounting portion 12 of the lock housing 11.
A cylindrical insertion trunk portion 23 that loosely fits into the fitting hole 16 of the cylinder, a handle portion 23 that fits into the fitting recess 15, and the handle portion 23 and the insertion trunk portion
22 is integrally formed in an L-shape as a whole. Reference numeral 24 denotes a fitting hole for a cylinder lock 31 formed at a front portion in the insertion body 22, and reference numeral 25 denotes an inner peripheral wall of the insertion body 22 except for a lower part of the rear portion in the insertion body 22. A latch mounting portion, which is isolated and provided integrally with the insertion trunk portion, is a square fitting hole for vertically moving latch operation, which is fitted into a fitting hole formed in the latch mounting portion 25 in its axial direction. A vertical rotating latch 27 which fits into the rear end of the latch mounting portion 25 and moves up and down by the rotation of the rotating rod 26; and 28 is an insertion body of the lock 21. twenty two
The latch 11 is incorporated in a space formed between the inner peripheral wall of the lock mounting portion 25 and the outer peripheral wall of the
29, a sleeve-shaped locking member projecting from the cylindrical projection 14
The lower end is housed in the spring housing of the vertical movement latch 27, while the other end is pressed against the inner wall of the insertion body 22 through an axial cutout 28 b formed in the sleeve 28 a of the sleeve-shaped locking member 28. The compression spring for vertical movement latch stored in the spring storage portion formed on the inner wall, the rear end portion of the latch mounting portion 25 of the insertion body 22 and the flange-shaped stopper wall 28c of the sleeve-shaped lock member 28 When the cylinder key 31 is unlocked with a key to be described later, the lock
This is a spring member that urges 21 to protrude by a required amount.

A male screw 28d is formed at the rear end of the sleeve-like lock member 28, and a long plate-like lock plate (not shown) is fixedly attached thereto by using a fixing tool screwed with the male screw 28d.

Finally, in a cylinder lock 31 incorporating a pin tumbler or the like (not shown), 32 is an outer cylinder having a male screw 32a on a part of the outer periphery, and 33 is a square-shaped An inner cylinder having a drive shaft 33a, a ring-shaped spacer 34 fitted to the outer cylinder 32 and having a tapered cutout surface 34a, 35 is screwed with a male screw 32a of the outer cylinder 32, and a latch member described later. It is an engagement ring that engages. 36 is an ordinary general key.

Thus, 40 is pivotally supported by lock handle 21 and is a cylinder lock.
31 is a latch member that is engaged with and disengaged from the engagement ring 35 of FIG. The latch member 40 is provided in a notch 22a formed at the front of the insertion barrel 22 of the lock. Latch member 40 is pivot pin 4
1 and is supported by opposed bearing portions 22b, 22b protrudingly formed on the outer peripheral portion of the insertion body portion 22 of the lock handle, and a pivot pin 41
Is always urged in one direction by a torsion spring 42 wound around the torsion spring. The latch member 40 is formed in a block shape as a whole, and a protruding portion with which a fingernail is
On the other hand, an engaging claw portion 40b is formed at the inner front end portion of the lock handle so as to protrude from the inner peripheral wall of the insertion barrel portion 22 in a tapered shape.

In the above configuration, as shown in FIGS. 6 and 7, the lock handle 21 is fitted in the fitting hole 16 of the lock housing 11, and is stored in the fitting hole 24 of the lock handle 21. When the cylinder lock 31 is in the locked state, the vertical movement latch 27 is engaged with the engagement hole 18 of the lock housing 11 by the spring force of the compression spring 29. In this case, the spring member 30 for urging the lock handle 21 is contracted.

Then, when the key 36 is inserted into the lock hole of the cylinder lock 31 and the inner cylinder 33 is rotated and unlocked, the drive shaft 33a of the inner cylinder 33 is rotated.
As a result, the rotation rod 26 rotates, and the vertical movement latch 27
Moves in the direction of disengagement against the spring force of the lock housing 11 and disengages from the engagement hole 18 of the lock housing 11. Then the lock handle 21 becomes the spring member 30
The spring force is pushed outward, and the required amount is ejected from the lock 11 as shown in FIG. In this case, the vertical movement latch 27 attached to the insertion body 22 of the lock handle 21 also moves in the axial direction together with sliding on the inner wall of the cylindrical projection 14 of the lock housing.

Next, even when the lock handle 21 protrudes from the lock housing 11 as shown in FIG. 3, the cylinder lock 31 is engaged with the engaging claw portion of the latch member 40 on the lock handle 21 side as shown in FIG. Since 40b is engaged with the engagement ring 35 of the cylinder lock 31, it is stored in the lock handle 21 as it is. However, the latch member
40 is exposed as shown in FIG. Therefore, when removing the cylinder lock 31 from the lock handle 21, as shown in FIG.
The engagement claw 40b of the latch member 40 is released from the engagement ring 35 of the cylinder lock 31. When the key 36 is pulled as it is, the cylinder lock 31 is pulled out from the lock handle 21 as shown in FIG. On the other hand, when fitting the extracted cylinder lock 31 into the lock handle 21, when the cylinder lock 31 is pushed into the fitting hole 24 of the lock handle 21, the engagement ring 35 is pressed.
Is in sliding contact with the tapered surface of the engaging claw portion 40b of the latch member 40, so that the latch member 40 rotates against the spring force of the torsion spring 42, and the cylinder lock 31 locks in a manner called "snap".
Stored in 21.

FIG. 9 shows another embodiment of the cylinder lock 31A. This cylinder lock 31A is different from the above-described embodiment of the present invention in that the cylinder lock 31A has no spacer and the engagement ring 35A is provided integrally with the outer cylinder 32A.

"Effects of the present invention" As is clear from the above description, the present invention has the following effects.

(1) When the key is rotated, the lock handle automatically pops out of the lock housing by the required amount, so that the door can be easily unlocked.

(2) When removing the cylinder lock from the lock handle that has protruded from the lock housing, pulling the key while rotating the latch member with a finger allows the cylinder lock to be easily removed from the lock handle.

(3) When inserting the cylinder lock into the lock handle, when the cylinder lock is pushed into the lock handle, the cylinder lock engages with the latch member of the lock handle in a manner that the engagement ring is snapped and is locked. .

Therefore, one-touch cylinder-shaped lock handle
Can be stored.

(4) According to the above (2) and (3), the cylinder lock of each standard can be easily replaced.

(5) Since the engaging claw portion 40b of the latch member 40 engages with the engaging ring 35 of the outer cylinder constituting the cylinder lock, it is strong against the cylinder lock being pulled out. That is, since the engagement ring 35 is provided around the outer cylinder of the cylinder lock in a flange shape, even if a very strong force acts in the axial direction, the engagement claw 40b of the latch member 40 is easily crushed. No worries about scraping or scraping. As a result, the cylinder lock cannot be easily pulled out from the lock handle, so that theft against the thief can be prevented.

[Brief description of the drawings]

1 to 8 are explanatory views showing one embodiment of the present invention, FIG. 9 is a perspective view showing a different embodiment of a main part of the present invention, and FIG. 10 is a schematic showing one embodiment of the prior art. FIG.
Specifically, FIG. 1 is an exploded perspective view, FIG. 2 is a perspective view of a combined state, FIG. 3 is an explanatory view of a state in which a lock handle has popped out, and FIGS. 4 and 5 are lock handle and cylinder lock. FIGS. 6 to 8 are schematic explanatory views showing the relationship. X: Door locking device, 10: Door, 11: Lock housing, 12: Fitting mounting part, 15: Fitting recess, 17: Storage groove, 21: Lock handle, 22 ... … Inserting body, 23… handle, 25… latch mounting part, 27 …… vertical latch, 28 …… sleeve lock member, 30 …… spring member, 31, 31A …… cylinder lock, 32, 32A ... outer cylinder, 35, 35A ... engagement ring, 36 ... key, 40 ... latch member.

Claims (2)

(57) [Claims] 1. A lock housing 11 having a fitting recess 15; a sleeve-like lock member 28 which is provided in the lock housing and has a rear end portion 28d protruding from a rear portion of the lock housing. Member 28
A lock handle 21 having an insertion body 22 into which a portion 28a of the lock housing can be inserted, and a handle 23 fitted into the fitting recess so as to be substantially flush with the surface of the lock housing; Provided in the
Also, a spring member 30 that constantly urges the lock handle in the protruding direction.
And a cylinder lock 31 fitted into the fitting hole 24 of the lock handle so that the surface does not substantially protrude.
An engagement ring 35 is screwed into the male screw 32 formed in the outer cylinder 32, and a latch member 40 having an engagement claw portion 40b engaged and disengaged from the engagement ring 35 is pivotally supported by the lock handle 21. A lock device for a door, wherein the cylinder lock 31 is disengaged from the lock handle 21 by rotating the latch member 40. 2. A lock housing 11 having a fitting recess 15, a sleeve-like lock member 28 which is provided in the lock housing and has a rear end portion 28d protruding from a rear portion of the lock housing. Member 28
A lock handle 21 having an insertion body 22 into which a portion 28a of the lock housing can be inserted, and a handle 23 fitted into the fitting recess so as to be substantially flush with the surface of the lock housing; Provided in the
Also, a spring member 30 that constantly urges the lock handle in the protruding direction.
And a cylinder lock 31 fitted into the fitting hole 24 of the lock handle so that the surface does not substantially protrude.
An engagement ring 35A is provided integrally with the outer cylinder 32A of A, while a latch member 40 having an engagement claw 40b engaging and disengaging from the engagement ring 35A is pivotally supported by the lock handle 21. A lock device for a door, wherein a cylinder lock 31A is disengaged from a lock handle 21 by a rotation operation.