JPH0544364A - Cylindrical lock - Google Patents

Abstract

PURPOSE:To replace a cylindrical body with a new one by a simple manipulation, by enabling the cylindrical lock body to be removably fitted in a housing secured to a door or the like, and by providing a release manipulating part in the rear side of the door or the like. CONSTITUTION:A housing 16 is secured to a door 17 or like, and a cylindrical lock body 14 is removably disposed in the housing 16 so as to constitute a cylindrical lock. Further, a release manipulating part 24 composed of a manipulating piece 64, a slide hole, a spring, a storage groove, an attaching piece or the like is provided in the housing 16 on the rear side of the door 17 or the like. Further, by manipulating the release manipulating part 24, the cylindrical lock body 14 is removed from the housing 16, and a new cylindrical lock body 14 is inserted into the housing 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder lock for locking and unlocking doors, safes, frames of pachinko machines and the like.

[0002]

2. Description of the Related Art In a conventional cylinder lock, a cylinder lock body and a housing are integrally fixed to a door or the like. For example, if you lose your house door key, you need to replace the cylinder lock for security reasons. in this case,
Remove the door mounting screws, etc., and replace the entire cylinder lock body and housing integrated product.

Also, in a pachinko parlor, fraudulent acts such as illegally copying a key to open the frame of the pachinko machine, bend a nail on the pachinko machine, or insert a pachinko ball into a winning hole are frequent. is doing. In the conventional cylinder lock disclosed in, for example, Japanese Patent Application No. 2-226456, such a fraudulent act is dealt with by removing the cylinder lock with the duplicated key from the curtain plate and replacing it with another new cylinder lock. Was.

[0004]

However, the cylinder lock of the residential door is generally buried in the door, and it is not easy to replace it. Also, in the work of replacing the cylinder lock of a pachinko machine, many electrical wiring and various machines installed on the back side of the curtain board obstructed,
It was a very cumbersome and time-consuming task.

Therefore, an object of the present invention is to provide a cylinder lock which can be easily replaced.

[0006]

The cylinder lock according to the present invention is as follows, which achieves the above object.

A cylinder lock body is detachably mounted in a housing fixed to a door or the like, and the housing is provided with a disengagement operation portion located behind the door or the like for disengaging the cylinder lock body. There is something. The term "fixed to the door or the like" as used herein includes not only being directly fixed to the door and the like but also indirectly fixed to the door and the like.

[0008]

The cylinder lock body is detachably housed in a housing fixed to a door or the like. The cylinder lock body is released from the housing when the release operation unit located on the back side of the door or the like is operated. Then, the cylinder lock body is replaced by engaging a new cylinder lock body in the housing.

[0009]

1 to 3 show an embodiment of a cylinder lock according to the present invention, FIG. 1 is an overall perspective view showing a state in which a cylinder lock main body is taken out from a housing, and FIG. 2 is II-II in FIG. FIG. 3 is a vertical cross-sectional view taken along the line, and FIG. 3 is a vertical cross-sectional view showing a state where the cylinder lock main body is housed in the housing in FIG. Hereinafter, a detailed description will be given with reference to these drawings.

The cylinder lock according to the present invention comprises a cylinder lock body 14 inside a housing 16 fixed to a door 17 or the like.
Is detachably configured, and the housing 16 is provided with a disengagement operation portion 24 located behind the door 17 or the like for disengaging the cylinder lock body 14. More specifically, it is composed of a cylinder lock body 14 having a drive shaft 12 that is rotated by a key 10, and a cylindrical housing 16 that houses the cylinder lock body 14. The housing 16 and the cylinder lock body 14 include a cylinder lock body. An engagement portion 18 for fixing 14 to the inside of the housing 16 is provided, and an opening 2 for inserting and removing the cylinder lock body 14 is provided in the housing 16.
0 and a mounting portion 2 for fixing the housing 16 to the door 17 or the like.
2 and a disengagement operation portion 24 for releasing the engagement of the engagement portion 18, and the cylinder lock body 14 is provided on one side with the door 17 interposed therebetween.
The key insertion opening 30 is located on the other side, and the detachment operating portion 24 is located on the other side.

The cylinder lock body 14 is composed of a casing 32 having a key insertion opening 30, a fixed cylinder portion 34 provided in the casing 32, and a drive shaft 12. The drive cylinders 34 having different lengths are provided in the fixed cylindrical body portion 34.
9 ... are accommodated in a state of being biased in the protruding direction by a spring (not shown). The drive shaft 12 is composed of a rotating member 42, one end of which is rotatably inserted into the fixed cylindrical portion 34, a guide protrusion 44, and a connecting shaft portion 45. The guide protrusion 44 extends from the rotating member 42, and the tip end side thereof reaches the inside of the key insertion opening 30. The large diameter portion 48 of the rotating member 42 accommodates operation pins 52 ... Having different lengths.

The key 10 has a cylindrical insertion portion 56 into which the guide protrusion 44 of the cylinder lock body 14 is inserted, and the cylindrical insertion portion 56 is inserted into the key insertion opening 30.

When the key 10 is inserted into the key insertion opening 30 of the cylinder lock body 14, the cylindrical insertion portion 56 presses the rear end surface of the operation pins 52 ..., The operation pins 52 ... And the drive pins 39.
Since the respective contact points with and are located on the same plane as the contact surface between the large diameter portion 48 and the fixed cylindrical body portion 34, the key 10 and the drive shaft 12
Can be rotated.

The housing 16 includes a cylinder lock body 1
4, an engaging portion 18 for fixing 4 in the housing 16, an opening 20 for inserting and removing the cylinder lock body 14, and a housing 1
A mounting portion 22 for fixing 6 to the door 17 and the like, and a disengagement operation portion 24 for disengaging the engagement portion 18 are provided. Further, the housing 16 has a shaft coupling 62 which is connected to the drive shaft 12 of the cylinder lock body 14 and rotates together with the drive shaft 12.
May be provided.

The disengagement operation portion 24 includes an operation piece 64, a slide hole 66 for slidably accommodating the operation piece 64, and a spring 68 for urging the operation piece 64 in a direction to hold the engagement of the engagement portion 18. A housing groove 70 for housing the spring 68, and the spring 68.
And a mounting piece 72 for fixing it in the storage groove 70. On the operation piece 64, the engagement convex portion 74 that engages with the engagement concave portion 55 to form the engagement portion 18 is engaged at one end, the hook portion 76 for hooking a finger or the like is engaged at the other end, and one end of the spring 68 is engaged. Engagement locking grooves 78 are formed at substantially the center.

Slide grooves 82, 82 are formed in the opening 20 in correspondence with the protrusions 80, 80 of the cylinder lock body 14. The ridges 80 along the slide grooves 82, 82,
80 slides, and the cylinder lock body 14 has the opening 2
Inserted and removed from 0.

The mounting portion 22 is composed of a flange portion 84, a male screw cylinder 86 formed from the flange portion 84 to the opening 20, and a female screw ring 88 screwed to the male screw cylinder 86.

The shaft joint 62 has a connecting hole 90 into which the connecting shaft portion 45 is fitted and which is formed at one end, and which is connected to another shaft.
2 is formed on the other end and is rotatably attached to the housing 16 by a flange portion 94 and a retaining ring 96 formed on the shaft coupling 62. A spring 98 for urging the connecting shaft portion 45 in the detaching direction is housed in the connecting hole 90. The joint portion 92 is a concave portion 100 into which a convex portion of another shaft is inserted.
And a mounting hole 102 formed in the recess 100 in the radial direction. The convex portion of the other shaft is inserted into the concave portion 100, and the convex portion of the other shaft and the concave portion 100 are coupled by the screw 104.

Next, the operation of the cylinder lock according to the present invention will be described. To attach the housing 16 to the door 17, the washer 106 is fitted into the male screw cylinder 86 of the housing 16, and the male screw cylinder 86 is inserted into the mounting hole 108 of the door 17. Subsequently, the female screw ring 88 is screwed into the male screw cylinder 86, and the door 17 is fastened by the flange portion 84 and the female screw ring 88, so that the housing 16 is fixed to the door 17.

Then, the cylinder lock body 1 is inserted into the opening 20.
When 4 is inserted, the guide surface 110 of the engagement concave portion 55 contacts the engagement convex portion 74, and the operation piece 64 is pushed up against the biasing force of the spring 68. Further, when the cylinder lock body 14 is pushed in while resisting the urging force of the spring 98, the engaging convex portion 74 falls into the engaging concave portion 55 and is engaged, and the drive shaft 12
The connecting shaft portion 45 is inserted into the connecting hole 90 of the shaft joint 62.

From this state, in order to disengage the cylinder lock body 14 from the housing 16, a finger is hooked on the hook portion 76 of the operating piece 64 to resist the urging force of the spring 68 and the operating piece 6 is pushed.
Lift up 4. Then, the engagement protrusion 74 and the engagement recess 55
The cylinder lock body 14 is pushed out of the opening 20 by the urging force of the spring 98 while being disengaged.

By thus inserting the new cylinder lock body 14 into the opening 20, the cylinder lock body 14 can be replaced very easily. Further, the detachment operation portion 24 is located on the back side of the door 17 and the like, and normally cannot be touched by hand. Therefore, the cylinder lock body 14 is not accidentally detached from the housing 16.

FIGS. 4 and 5 show an example in which the cylinder lock according to the present invention is used in an unlocking device for a pachinko machine. 4 is an overall perspective view of the pachinko machine unlocking device seen from the front of the pachinko machine, and FIG. 5 is an overall perspective view of the pachinko machine unlocking device seen from the back of the pachinko machine. A detailed description will be given below with reference to these drawings. However, the same parts as those in FIG. 1 to FIG.

The unlocking device 208 is an unlocking unit 2 for the front frame 210.
14 and the unlocking part 216 for the glass frame 212 can be provided. Since the unlocking unit 214 and the unlocking unit 216 have substantially the same configuration, only the unlocking unit for the front frame will be described. In the unlocking unit 216, the same parts as those of the unlocking unit 214 are designated by the same reference numerals.

In the unlocking device 208, a driving unit 234 for manually generating a driving force is installed on the outer frame 220 of the pachinko machine 218, and the locking claw 228 of the front frame 210 of the pachinko machine 218 is installed.
An unlocking portion 214 having an engaging protrusion 230 that engages with the driving force is installed on the outer frame 220 of the pachinko machine 218, and a flexible wire 232 that transmits the driving force causes the driving portion 234 and the unlocking portion 214 to move. Are connected. Further, the drive unit 234 is provided with a pulley 320 that is manually rotated, and a flexible wire 232 is fixed to the pulley 320. In addition, the flexible wire 2
32 is configured by one, one end 322 of the flexible wire 232 is connected to the unlocking unit 214, the other end 324 of the flexible wire 232 is connected to the unlocking unit 216, and one end 322 and the other end 324 of the flexible wire 232. The space between them is locked by the drive unit 234. Further, the drive unit 23
2 is provided with a latch mechanism 326 that holds the engagement state of the locking claw 228 and the engagement protrusion 230.

The unlocking unit 212 has a fixed plate 224 fixed to the outer frame 220 of the pachinko machine 218, a movable plate 226 slidably provided on the fixed plate 224, and a movable plate 226.
And an engaging protrusion 230 for pressing the locking claw 228 of the front frame 210 to unlock the front frame 210. A rotating member 248 is rotatably fixed to the fixed plate 224. The unlocking portion 216 of the glass frame 212 has exactly the same shape as in this embodiment except that the shape of the engaging protrusion 310 is different from the engaging protrusion 230 of the unlocking portion 214 of the front frame 210. A fixed plate 224 and a movable plate 226 can be used. The flexible wire 232 may be any wire as long as it has flexibility. In this embodiment, the flexible outer tube 276 and the flexibility inserted in the outer tube 276 are not used. And an inner wire 278 that has. The outer tube 276 is fixed to the fixed plate 224 by a fixing tool 280. The inner wire 278 is the drive unit 2
It is locked to 34.

The drive unit 234 includes a pulley 320, a transmission shaft 328 that connects the drive shaft 12 of the cylinder lock according to the present invention and the pulley 320, and transmits a driving force, and the pulley 32.
The housing 330 that accommodates 0 and a latch mechanism 326 are generally configured. The pulley 320 includes the pulley 3
A flexible wire mounting groove 332 is provided by cutting a part of 20. Further, the fitting 334 is crimped to the inner wire 278 of the flexible wire 232, and the fitting 334 is fitted in the flexible wire mounting groove 332, so that the flexible wire 232 is fixed to the pulley 320. And the inner wire 27
8 is suspended in the outer peripheral groove 336 of the pulley 320. The housing 330 is composed of a container member 338 and a lid member 340. Bearing holes 342 and 344 are formed in the container member 338 and the lid member 340, respectively.
A transmission shaft 328 is inserted through 42 and 344. The latch mechanism 326 has a locking hole 34 formed in the pulley 320.
6, a locking rod 348 that fits into the locking hole 346, and a release rod 350 that releases the latch. One end of the rotating piece 364 is one end and the other end is the release rod 350.
Are rotatably connected to each.

Further, as shown in FIG. 5, the drive unit 234 is installed at an arbitrary position on the outer frame 220 of the pachinko machine 218 by screws 288, ... And a mounting plate 374.
The drive unit 234 may be installed at any position on the curtain plate 300. The driving unit 234 uses the flexible wire 232.
Due to its flexibility, the driving force can be transmitted to the flexible wire 232 regardless of where the driving unit 234 is installed. Further, the pachinko machine 218 incorporating the unlocking device 208 is installed on the island stand 298 as shown in FIG. Further, the curtain plate 300 is provided above the front frame 210, and the curtain plate 300 is provided with the key insertion opening 30 of the cylinder lock body 14 and the tip 376 of the release rod 350.

Next, the operation of the unlocking device 208 will be described.
As shown in FIG. 5, a known locking device 312 is incorporated in the pachinko machine 218. Explaining the outline of the configuration, 228 and 228 are locking claws for the front frame 210, 314 is a locking claw for the glass frame 212, and 316 is a fixed claw fixed to the outer frame 220. Further, 318 is an existing cylinder lock.

First, the key insertion port 3 of the cylinder lock body 14
When the key 10 is inserted into 0 and rotated, the pulley 320 rotates via the transmission shaft 328. Then, the inner wire 278 suspended in the outer peripheral groove 336 of the pulley 320.
Rotates about the transmission shaft 328 along the outer peripheral groove 336. Therefore, the inner wire 278 is connected to the outer peripheral groove 336.
The flexible wire 232 can be smoothly pulled because it is pulled in the tangential direction (upward in this embodiment). In this way, by rotating the key 10 to the right or left, the front frame 210 side or the glass frame 2
Either one of the flexible wires 232 on the 12 side can be pulled.

When the front frame 210 is locked and in the closed state, the drive unit 234 is actuated at this time to drive the drive unit 23.
4 pulls the flexible wire 232, and the rotating member 2
One end 262 of 48 is lifted. At this time, the movable plate 226 slides downward by the rotation of the rotation member 248. Then, the engaging protrusion 2 attached to the movable plate 226
When 30 pushes the locking claw 228 downward, the locking claw 228
Separates from the fixed claw 316 and unlocks the front frame 210. The tension spring 257 is for returning the movable plate 226 to the original position. It should be noted that the fixing claw (not shown) for the glass frame 212 of the locking device 312 is not normally provided on the outer frame 220. Therefore, the unlocking portion 2 of the glass frame 212
In 16, the engaging protrusion 310 is unlocked simply by pressing the locking claw 314, and except for this point, the unlocking portion 214 of the front frame 210 operates in the same manner.

Further, the tension springs 228a, 228a provided in the locking device 312 constantly apply a force to the locking claw 228 to engage with the fixed claw 316.
The latch mechanism 326 is for holding the state in which the engagement protrusion 310 presses the locking claw 314 so that the locking claw 228 does not return to the locked state.

The operation of the latch mechanism 326 will be described below with reference to FIG. From the state shown, the cylinder lock body 14
When the key 10 is inserted into the key insertion opening 30 and the key 10 is rotated to the right, the pulley 320 is rotated via the transmission shaft 328. Then, as the pulley 320 rotates, the locking hole 34
6 moves to the position of the locking rod 348. Then, as described above, the front frame 210 is unlocked, and the locking rod 348 is inserted into the locking hole 346 by the extension force of the compression spring (not shown).
The tip of is inserted. At this time, the tip 37 of the release rod 350
6 is projected by rotating the rotating piece 364. In this way, the locking rod 348 is locked in the locking hole 346,
The latch mechanism 326 operates.

To release the latched state from this state, the tip 376 of the release rod 350 is pushed against the extension force of the compression spring (not shown). Then, as the rotating piece 364 rotates, the locking rod 348 is pulled out from the locking hole 340. At this time, the pulley 320 is rotated to move the locking hole 3
When 46 is moved from the position of the locking rod 348, the state shown in FIG. 5 is restored and the latched state is released.

Next, the work of replacing the cylinder lock body 14 will be described with reference to FIGS. First, the curtain 30
When the operator puts his / her hand on the 0 and puts a finger on the hook portion 76 of the operation piece 64 to lift it, the engagement of the engagement portion 18 is released, and at the same time, the cylinder lock main body 1
4 is pushed out of the opening 20. Although a large number of electric wirings and various machines are provided on the back side of the curtain plate 300, it does not hinder the operation of hanging a finger on the hook portion 76 and lifting it. Then, the new cylinder lock body 14 is provided with the opening 2
Insert to 0. As described above, the amount of work conventionally required to replace the entire housing 16 is changed to the amount of work for simply attaching and detaching the cylinder lock body 14.

Although the cylinder lock according to the present invention is used in the unlocking device of the pachinko machine in the above embodiment, the cylinder lock is not limited to this and may be used in a safe, a door or the like.

FIG. 6 is a partially cutaway perspective view showing the relationship between a cylinder lock body and a key in another embodiment of the cylinder lock according to the present invention.

The cylinder lock body 402 has a key insertion port 40.
4 is composed of a casing 406, a fixed cylinder portion 408 and a drive shaft 410 provided in the casing 406. Each of the pin holes 412 formed in the fixed cylindrical portion 408 in the radial direction has a drive pin 41 of a different length.
4 are housed in a state of being biased in the protruding direction by springs 416. The drive shaft 410 has a fixed cylindrical body portion 408.
The rotating member 418 rotatably inserted into the
20 and 20. Operating pins 424 ... Having different lengths are housed in the through-pin holes 422 ... of the rotating member 418, respectively. The through-pin holes 422 ... Are formed coaxially with the pin holes 412 ... of the fixed cylindrical body portion 408. As a result, as shown in FIG. 10, each drive pin 4
14 penetrates into the through pin hole 422, and the rotating member 418
Is prevented from rotating. Further, the casing 406 is formed with an engagement concave portion 428 which constitutes the engagement portion 426.

The key 430 has a plate-shaped insertion portion 432 to be inserted into the key insertion opening 404 of the cylinder lock body 402. A pin pressing cam groove surface 434 ... Is provided on the outer peripheral surface of the plate-shaped insertion portion 432. Pin pressing cam groove surface 43
4 presses the tip end surfaces of the operation pins 424.

When the key 430 is inserted into the key insertion opening 404 of the cylinder lock body 402, the pin pressing cam groove surface 434 ...
Presses the tip surface of the operation pin 424 ...
.. and the drive pin 414 are located on the same surface as the contact surface between the drive shaft 410 and the fixed cylindrical body portion 408, whereby the key 430 and the drive shaft 410 can be rotated.

Such a cylinder lock body 402 and key 4
30 may be used.

[0042]

As described above, according to the cylinder lock of the present invention, only the cylinder lock body can be replaced by a simple attaching / detaching operation, and the workability of cylinder lock replacement can be improved.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a state in which a cylinder lock main body in an embodiment of a cylinder lock according to the present invention is taken out from a housing.

FIG. 2 is a vertical sectional view taken along the line II-II of FIG. 1 in an embodiment of the cylinder lock according to the present invention.

FIG. 3 is a vertical cross-sectional view showing a state where a cylinder lock main body is housed in a housing in an embodiment of the cylinder lock according to the present invention.

FIG. 4 is an overall perspective view of an example in which an embodiment of the cylinder lock according to the present invention is used in an unlocking device of a pachinko machine, as seen from the front of the pachinko machine.

FIG. 5 is an overall perspective view of an example in which an embodiment of the cylinder lock according to the present invention is used in an unlocking device of a pachinko machine, as viewed from the back of the pachinko machine.

FIG. 6 is a partially cutaway perspective view showing a relationship between a cylinder lock body and a key in another embodiment of the cylinder lock according to the present invention.

[Explanation of symbols]

10,430 ... Key 12,410
... Drive shaft 14, 402 ... Cylinder lock body 16 ... Housing 17 ... Door 18, 426
・ ・ ・ Engagement part 20 ・ ・ ・ Opening part 22 ・ ・ ・ Attachment part 24 ・ ・ ・ Release operation part 30 ・ ・ ・ Key insertion port
300 ... curtain

Claims (1)

[Claims] 1. A cylinder lock body is configured to be detachable in a housing fixed to a door or the like, and a detaching operation portion located on the back side of the door or the like for detaching the cylinder lock body is provided in the housing. Cylinder lock.