JP3523436B2 - Locking device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retrofit locking device which is mounted on the front surface of an existing locking device and locks and unlocks the existing locking device with a key having a code different from that of the existing locking device. is there.

[0002]

2. Description of the Related Art When an administrator collectively manages a plurality of devices each equipped with a lock device having a different unique code,
The key for each lock device must be selected from the set of keys having the code of each lock device, locked and unlocked. For example, a plurality of pachinko machines installed in a pachinko machine are arranged by weaving and arranging each model manufactured by a plurality of manufacturers, so that the code of the lock device of each pachinko machine is various and the front of each pachinko machine is different. Locking and unlocking the door is a laborious task.

In order to eliminate such inconvenience, an attached locking device having a primary side lock unified into one code is attached to the front surface of an existing locking device having various codes, and this locking device is attached. To lock and unlock the existing lock device via the primary side lock with one key held by the administrator by interlocking the key of the code suitable for the existing lock device with the rotation axis controlled by Has been adopted. The technology relating to the locking device attached later is disclosed in Japanese Patent Publication No. 4-49433.
There is a technique described in JP-B-6-32682.

In all of the above-mentioned publications, an existing lock device is provided on the surface of the front door frame of the pachinko machine, and the lock device attached later is screwed to the surface of the front door frame. The lock on the primary side provided inside the later-installed locking device is a cylinder lock, and this cylinder lock is arranged in front of the existing locking device so as to coincide with the rotation axis of the existing locking device.
In Japanese Patent Publication No. 4-49433, "Locking device for playground", a key member that engages with a rear end of a rotor having a keyhole on the front surface is urged in a direction to engage with a keyhole of an existing lock device. Has been done. In Japanese Patent Publication No. 6-32682 "Locking device for playground", a key member fixed to the rear end of the rotor is inserted into a key hole of an existing locking device.

[0005]

However, the above-mentioned locking device has the following problems. (1) If there is a protrusion on the front of the pachinko machine, it will be an obstacle for pachinko users, and since the protrusion may hinder the monitoring of biasing operations such as malicious mischief, the protrusion length should be as small as possible. However, since the locking device to be attached later is coaxially arranged in front of the existing locking device, the protruding length is long, and a spring is provided to urge the key member toward the existing locking device. Has a larger protrusion length. (2) Since the locking device attached afterwards is screwed to the surface of the front door frame, it causes processing flaws on the surface of the pachinko machine, which causes a problem of impairing aesthetics and is a problem from the regulations that regulate processing. There is.

(3) The screw for attaching the post-locking device to the surface of the front door frame can be easily removed by a screwdriver by a malicious third party, and the post-installing locking device can be easily removed. There is. (4) If the rotation axis of the lock on the primary side of the retrofit locking device does not correctly match the rotation axis of the existing locking device, the key operation becomes heavy. The present invention is intended to solve such problems.

[0007]

[Means for Solving the Problems] In order to achieve the above purpose
The locking device of the present invention includes a case mounted via a base plate at a position covering the existing locking device provided on the wall surface, and a key different from the existing locking device in which a keyhole is exposed on the surface of the case. and lock the primary side with a code, engagement
A drive-side rotating body that has a fitting projection and is rotated by a key operation of the lock on the primary side, and the drive-side rotating body that is arranged in a direction substantially parallel to the case mounting surface with respect to the drive-side rotating body. a driven-side rotating member which is rotated by the rotation of, is mounted on the driven-side rotating member, and a key member inserted into the key hole of the existing lock device, the plate insertion hole in the case side, the Base
Each plate restraint groove is provided in
The plate with the case joined to the base plate.
Hold play through the insertion hole and the plate restraint groove
Case is inserted through the hold plate
And the base plate are connected to each other, and the hold plate
However, at the locking angle of the lock on the primary side,
A hole that is rotatably held and a lock on the primary side that communicates with the hole.
And an opening for passing the engaging projection at the unlocking angle of
It is characterized by having done .

[0008] The existing lock device, the existing lock device is provided on the wall surface of the front end portion which is secured to the body, the base
Supureto has a through-hole the key hole of the existing lock device is exposed, slidably mounted on the front end, the upper
The case can be configured to be fixed to the base plate. The hole that rotatably holds the engaging protrusion
Is provided with a locking surface for locking the locking projection at the locking angle.
It is possible to have a modified configuration .

The engaging protrusion is a surface of the base plate.
It can be configured to be inserted into the plate restraining groove through a projection insertion hole opened in the surface .

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to the drawings when it is installed in a pachinko playground. 1 is a longitudinal sectional view of a case 5 of the locking device A showing a locked state (when fixed), FIG. 2 is a view taken in the direction of the arrow X of FIG. 1, and FIG. 3 is a case of the locking device A showing an unlocked state (when attached and detached). 5 is a longitudinal sectional view of FIG. 5, FIG. 4 is a view taken in the direction of the arrow Y of FIG. 3, FIG. 5 is a perspective view showing the procedure for attaching the locking device A, FIG. 6 is a perspective view illustrating the engagement relationship between the base plate and the case, and FIG. FIG. 10 is an exploded perspective view of the case and its assembled parts, and FIG. 8 and FIG. 9 are a front view and a side view of essential parts of the inter-lens ball lending machine B to which the locking device A is fixed.
FIG. 10 is a Z arrow view of FIG. 9.

Between the pachinko machines arranged in the pachinko amusement park, a narrow inter-lens ball lending machine B for lending balls by inserting a prepaid card is installed. As shown in FIG. 8, a card insertion slot 2 (see FIG. 8) into which a prepaid card is inserted, an upper portion (see FIGS. 8 and 9) or a lower portion (see FIGS. 8 and 9) of the card insertion slot 2 is provided on the front surface of the stand ball lending machine B. The front end portion 1 having a lock device attached to (see FIGS. 5 and 6) and a display device (not shown) is assembled (see FIG. 10).

The locking device A of the present invention is the inter-mountain ball lending machine B.
Is most suitable for attachment to the front end portion 1, and the locking device A includes a base plate 4 attached to the front end portion 1,
It is roughly classified into a case 5 fixed to the base plate 4 (see FIGS. 6 and 10). The base plate 4 is the front wall 4
The side wall 4b is bent at a right angle from both ends of a, and an engaging piece 4c is provided at the tip of each side wall 4b so as to be bent back in a U shape.

The front end portion 1 of the inter-mountain ball renting machine B is formed in a U-shaped frame in cross section (see FIG. 10), and is slightly separated from the main body B'of the inter-mountain ball renting machine B. Since there is a gap S, the base plate 4 is formed in a shape that slidably holds the U-shaped front end portion 1 (FIGS. 6 and 10).
reference). Therefore, the base plate 4 is attached to the lower end 1 of the front end portion 1.
It can be inserted from a (see FIG. 9) and slid to any height of the front end portion 1.

The front wall 4a of the base plate 4 is provided with a through hole 6 through which the key hole 3 of the lock device at the front end 1 is exposed.
Standing walls 7 are formed in a cut-and-raised shape on both sides of the through hole 6,
The standing wall 7 is provided with a screw hole 8. The front wall 4 and the guide piece 9 in which the leg portions 9a formed at both ends are fixed to the front wall 4a.
A plate restraint groove 10 is formed between the support piece 12 and a, and the guide piece 9 is provided with a projection insertion hole 11 that opens into the plate restraint groove 10, and a support piece 12 that bends from the lower end of the base plate 4 and projects to the front side. The support piece 12 is formed with a screw insertion hole 13 (see FIG. 6).

The case 5 attached to the base plate 4 includes a front wall 5a, side walls 5b provided at both ends of the front wall 5a, an upper wall 5c provided at an upper end of the front wall 5a, and a lower end of the front wall 5a. With the lower wall 5d provided on the mounting surface, the mounting surface is formed into a flat box shape (see FIGS. 1 and 7).
reference). The cylinder insertion hole 15 penetrates the bottom of the circular recess 14 provided in the front wall 5a, and the cylinder insertion hole 15 has
A cylinder lock 16 which is a lock on the primary side is inserted. The reason for providing the lock on the primary side is that the existing lock device having different codes can be operated with one key K.

The cylinder lock 16 is a cylinder lock having a short overall length in order to reduce the thickness of the case 5. The cylinder lock 16 of a type having a short overall length has a small number of tumbler pins arranged in the axial direction of the rotor 20, but by increasing the number of tumbler pin rows in the circumferential direction of the rotor 20 (this embodiment 3 columns), to prevent a decrease in the total number of key differences.

The front wall 5a is clamped by clamping the front wall 5a by the flange portion 17 at the front end of the cylinder lock 16 and the nut 18 screwed onto the male screw screwed on the outer peripheral surface of the cylinder lock 16. (See FIGS. 1 and 7). Cylinder lock 1
When the key K is inserted into the key hole 19 opening in the front wall 5a and is rotated, the rotor 20 having the rear end 20a formed in a non-circular shape rotates. A step portion 21 is provided around the inner wall surface of the case 5 at a position close to the opening, and screw holes 22 are provided at four corners of the step portion 21.

The closing plate 23 mounted on the step portion 21 is provided with a hole 24 which overlaps with the screw hole 22, and a screw 25 inserted through the hole 24 is screwed into the screw hole 22 (see FIG. 7). The closing plate 23 is formed with bulging portions 26 and 27 projecting outward at positions facing upward and downward of the guide piece 9 when attached to the base plate 4, and the bulging portions 26 and 27 have the bulging portions 26 and 27 of the base plate 4. Plate insertion holes 28 and 29 continuous with the plate restraint groove 10 are provided, a long hole 30 into which the upright wall 7 is inserted and a long groove 30 'into which the support side 12 is inserted are provided, and the key hole 3 of the existing lock device is provided. An exposed hole 31 is provided (see FIG. 7).

A hole 3 provided near the central portion of the closing plate 23
The drive-side rotating body 33 is rotatably supported by the shaft 2. The drive-side rotating body 33 has a non-circular rear end portion 20 a of the rotor 20.
Is provided (see FIG. 1) with which the
A non-circular engagement protrusion 35 projecting into the protrusion insertion hole 11 is provided on the opposite surface (see FIG. 7).

A driven side rotating body 37 is rotatably supported by a cylindrical portion 36 provided on the inner surface of the front wall 5a. The driven-side rotating body 37 is arranged at a position substantially parallel to the mounting surface of the case 5 with respect to the driving-side rotating body 33. In the first embodiment of the present invention, the driven-side rotating body 33 and the driven-side rotating body 37 are arranged. It is a gear that meshes the rotating bodies 37 with each other (see FIG. 11). The gear of the drive-side rotating body 33 is formed over the outer periphery of 180 °, and both ends 33a and 33b abut on the protrusion 16a protruding from the end surface of the case of the cylinder lock 16, so that the rotation angle of the rotor 20 becomes approximately 90 °. It is regulated (see FIG. 7).

The driven rotor 37 has a recess 38 that opens toward the front wall 5a and a recess 39 that is provided on the opposite side of the recess 38.
(See FIG. 1), and the engaging groove 39a is provided in the recess 39 (see FIG. 7). Key member 40 inserted in the recess 39
Since the engaging projection 40a that engages with the engaging groove 39a is provided, the key member 40 cannot rotate with respect to the driven side rotating body 37. The tip of the key member 40 is inserted into and removed from the key hole 3,
It is a key that can operate the existing lock device.

The spring 4 is inserted between the washer 41 inserted into the recess 38 and the washer 42 inserted into the tubular portion 36.
3 is inserted (see FIGS. 1 and 7). Therefore, the driven side rotating body 37 is biased in the direction in which the key member 40 is inserted into the key hole 3, and is brought into contact with and retained by the closing plate 23.

A shallow bottom recess 44 is provided in the lower wall 5d of the case 5 (see FIG. 3), and an insertion hole 45 is provided in the recess 44 at a position closer to the opening side of the case 5 (FIG. 3, FIG. 3). (See FIG. 6). After the case 5 is brought into contact with the base plate 4, the tip of the hold plate 46 is inserted into the insertion hole 45 from the outside of the case 5.

The hold plate 46 is the plate insertion hole 28 of the closing plate 23 and the plate restraining groove 1 of the base plate 4.
When it is inserted into the plate insertion hole 29 of the closing plate 23 via 0, a hole 47 is formed at a position overlapping the hole 32 of the closing plate 23.
Is provided, and an opening 48 that communicates with the tip of the hold plate 46 from the hole 47 is provided (see FIG. 7). Opening 48
Has a width that allows the engagement projection 35 to pass when the engagement projection 35 that rotates together with the rotor 20 of the cylinder lock 16 has an unlocking angle, but cannot pass the engagement projection 35 having the locking angle. Is formed in.

A locking surface 49 that engages with the locking projection 35 is formed in the hole 47, and a screw insertion hole 51 is provided in a stopper 50 that is bent at the rear end of the hold plate 46. The screw 52 inserted in the hole 51 is screwed into the screw hole 53 provided in the bottom of the recess 44 of the case 5 (see FIGS. 5 and 7). When the driven-side rotating body 37 is arranged below the drive-side rotating body 33, the engagement protrusions 35 can be formed on the driven-side rotating body 37 and the key member 40, and are formed regardless of the arrangement due to space restrictions. can do.

The both side walls 5b of the case 5 are provided with holes 54 which overlap the screw holes 8 of the base plate 4 when the case 5 contacts the base plate 4. A screw 55 that is screwed into the screw hole 8 can be inserted into the hole 54 (see FIG. 6).

Next, the locking device A configured as described above.
The operation will be described in the order of attachment to the front end portion 1 of the inter-lens ball lending machine B, locking and unlocking operations. As shown in FIG. 6, the case 5 before being attached to the inter-lens ball lending machine B is assembled by removing the screw 55 and the hold plate 46, and by locking and unlocking the key K inserted in the cylinder lock 16. The engaging projection 35 can be rotated by approximately 90 degrees (at this time, the key member 40 is rotated by approximately 90 degrees in the opposite direction).

Next, the lower end 1a of the front end portion 1 of the inter-mountain ball lending machine B
The base plate 4 is inserted through the base plate 4, and the base plate 4 is slid along the front end portion 1 so that the key hole 3 of the existing lock device is exposed through the through hole 6 (see FIG. 6). Since the base plate 4 holds the front end 1 by the elastic force, it can be stopped at any position.

Next, since the key (key member 40) can be inserted and removed while the keyhole 3 of the existing lock device is locked, the key member 40 is rotated to the locking angle. When the case 5 is brought into contact with the base plate 4, the key member 40 projects from the base plate 4 to a position where the driven side rotating body 37 biased by the spring 43 comes into pressure contact with the base plate 4 (see FIG. 12).

When the protruding key member 40 is inserted into the key hole 3 of the existing lock device, the rotor of the existing lock device is inserted to the complete insertion position where the rotor can be rotated and then stopped. The driven-side rotating body 37 moves backward by the stroke amount while being engaged with the driving-side rotating body 33 against the spring 43 (the amount of backward movement is indicated by symbol C in FIG. 13). The driven side rotating body 37 can be retracted until it comes into contact with the case 5 shown in FIG. 13. However, in the mounted state, the driven side rotating body 37 is designed to stop retracting at approximately the middle of the movement amount, so that the keyhole 3 is always provided with a spring. There is no rattling due to the force of 43.

By inserting the key member 40, the mounting position of the base plate 4 is determined, and the upright wall 7 and the support piece 12 are inserted into the long hole 30 and the long groove 30 'of the closing plate 23 of the case 5, respectively, and the screws of the upright wall 7 are screwed. The hole 8 and the screw insertion hole 13 of the support piece 12 overlap the hole 54 of the side wall 5b of the case 5 and the screw hole 53 of the lower wall 5d. Insert the screw 55 inserted in the hole 54 into the screw hole 8
Then, the case 5 is fastened to the base plate 4 (see FIG. 6).

Next, when the key K inserted in the keyhole 19 is rotated to the unlocking angle, the engaging projection 35, which is horizontally oriented as shown in FIG. 6, is vertically oriented (see FIGS. 3 and 4). ),
The engaging projection 35 is allowed to pass through the opening 48 of the hold plate 46. When the hold plate 46 is pushed into the case 5, the end of the hold plate 46 is closed by the closing plate 2.
The plate insertion hole 28 of No. 3 is inserted into the plate restraining groove 10 of the base plate 4 and the plate insertion hole 29 of the closing plate 23, and the case 5 engages with the base plate 4. Therefore, the case 5 cannot be removed from the base plate 4 unless the hold plate 46 is removed.

By inserting the hold plate 46, the vertically-engaged engaging projection 35 is inserted into the hole 47, and the stopper 50 of the hold plate 46 is inserted into the recess 44 of the lower wall 5d of the case 5.
(See FIG. 4). Stopper 5 with screw 52
When the key K inserted in the keyhole 19 is rotated to the locking angle after 0 is fastened in the recess 44, the engagement projection 35 rotated counterclockwise from the vertical direction is turned sideways, and the hold plate 46 is rotated. It comes into contact with the locking surface 49 (see FIGS. 1 and 2), and the hold plate 46 cannot be removed.

Therefore, if the key K is pivoted to the lock angle and then withdrawn from the key hole 19, even if a malicious third party removes the screws 52 and 55 using a tool such as a screwdriver, the lock is locked. The device A cannot be removed from the tip portion 1 of the inter-mountain ball lending machine B. Cylinder lock 16 which is the lock on the primary side
When is locked, the existing lock device is also in the locked state, and if the key K is used to unlock the cylinder lock 16, the existing lock device is also unlocked.

The existing lock devices provided respectively in the plurality of arranged inter-lens ball lending machines B have various codes,
The retrofit locking device A provided at the position covering each existing locking device has the same code for the cylinder lock 16 on the primary side, so that the manager can operate all pachinko machines with one key K. The front door of can be locked and unlocked. The locking device A is fixed irremovably without scratching the tip of the inter-lens ball lending machine B, and since the thickness of the case 5 is small, it does not hinder the user.

14 and 15 are views showing a second embodiment of the present invention. Instead of the driving side rotating body 33 and the driven side rotating body 37 which mesh with each other, a pair of rotation transmitting links 56 or The drive side rotating body 33 'and the driven side rotating body 37' which are connected by one rotation transmitting link 57 are used, but the other structure is the same as that of the first embodiment. As shown in FIG. 14, the pair of rotation transmitting links 56 has both ends on the driving side rotating body 33 ′ and the driven side rotating body 3.
7 ', and this pivot point corresponds to the pivot point of a general four-bar parallel link, and when the drive side rotating body 33' rotates,
The driven side rotating body 37 'rotates in the same direction.

In the case shown in FIG. 15, both ends of one rotation transmitting link 57 are pivotally attached to the driving side rotating body 33 'and the driven side rotating body 37', but the other structure is the same as the above-mentioned one. 1
It is similar to the embodiment. Since the rotation transmission links 57 have different pivot points of the rotating bodies 33 'and 37', the rotation directions thereof are opposite to each other as indicated by the arrow. The driven side rotating body may be rotated by a belt in addition to the rotation transmitting link.

In the above description, the case where the later-installed locking device A is installed in front of the existing locking device of the inter-mountain ball lending machine B installed between the pachinko machines is explained. In addition to the existing lock device, the present invention can be widely applied when locking and unlocking existing lock devices having different codes with one key K.

[0039]

Since the present invention is constructed as described above, it has the following effects. (1) In the locking device of the present invention, the driving side rotating body driven by the lock on the primary side and the driven side rotating body having the key member inserted into the existing locking device are arranged in parallel with the mounting surface of the case. Therefore, the thickness of the case is reduced. When the lock on the primary side is a short lock, the thickness of the case becomes extremely small. Therefore, in the case where the locking device can be attached to the front of the pedestal ball lending machine, there is an advantage that it does not disturb pachinko patrons and it is possible to easily monitor illegal operation of the game machine by a malicious third party. There is.

(2) In the locking device of the present invention, the base plate is slidably attached to a member provided with an existing locking device,
Since the case mounted on the base plate is provided with the key member that engages with the key hole of the existing locking device, the locking device can be accurately and easily positioned and mounted. (3) The base plate can be attached to a member equipped with an existing locking device without attaching any flaws such as screws. Therefore, as in the prior art, problems that impair aesthetics and legal problems that regulate processing defects are solved. (4) The locking device of the present invention not only locks the existing locking device while locking the lock on the primary side, but also makes it impossible to remove the hold plate, so a malicious third party may use a tool. But it is not removable.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a locking device of the present invention in a locked state.

FIG. 2 is a view on arrow X in FIG.

FIG. 3 is a vertical cross-sectional view of the locking device before attachment.

FIG. 4 is a view on arrow Y of FIG.

FIG. 5 is a perspective view of FIG.

FIG. 6 is a perspective view showing an engagement relationship between a base plate and a case.

FIG. 7 is an exploded perspective view of components incorporated in the case.

FIG. 8 is a front view of an inter-lens ball lending machine to which a locking device is fixed.

9 is a side view of the main part of FIG.

10 is a Z arrow view of FIG. 9. FIG.

FIG. 11 is a view showing a driving rotary body and a driven rotary body according to the first embodiment.

FIG. 12 is a longitudinal sectional view of an essential part showing a protruding state of a key member of the locking device before attachment.

FIG. 13 is a longitudinal cross-sectional view of a main part showing a protruding state of a key member of the locking device after attachment.

FIG. 14 is a view showing a drive rotating body and a driven rotating body of a second embodiment, showing a case where there are a pair of rotation transmitting links.

FIG. 15 is a drawing showing a drive rotating body and a driven rotating body of a second embodiment, showing a case where there is one rotation transmitting link.

[Explanation of symbols]

A locking device B Tajima ball rental machine B'main body K key 1 front end 3 keyhole 4 base plate 5 cases 6 through holes 10 Plate restraint groove 15 Cylinder insertion hole 16 cylinder lock (lock on the primary side) 19 keyhole 20 rotor 20a Non-circular rear end 23 Block 28,29 Plate insertion hole 33,33 'Drive side rotating body 35 Engagement protrusion 37,37 'Driven side rotating body 40 key members 43 spring 46 Hold plate 48 openings 49 Locking surface 56,57 Rotation transmission link

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuyoshi Yokota 1-6-8 Fukuura, Kanazawa-ku, Yokohama-shi, Kanagawa Alpha Technical Center Co., Ltd. (56) Reference JP-A-49-126499 (JP, A) ) Actual Development Sho 60-72863 (JP, U) Japanese Patent Publication 4-49433 (JP, B2) Registered utility model 3018664 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E05B 61 / 00 A63F 7/02 E05B 35/12

Claims (4)

(57) [Claims] 1. A case having a case mounted via a base plate at a position covering an existing locking device provided on a wall surface, and a primary having a key hole exposed on the surface of the case and having a key code different from that of the existing locking device. Side lock and engaging protrusion
Then, the drive side rotating body which is rotated by the key operation of the primary side lock and the drive side rotating body are arranged in a direction substantially parallel to the case mounting surface with respect to the drive side rotating body. The driven-side rotating body that is rotationally driven, and the key member that is attached to the driven-side rotating body and is inserted into the key hole of the existing lock device are provided , and the plate insertion hole is provided on the case side and the base plate is provided.
Each plate restraint groove is provided, and the base plate
With the case joined to the
The hold plate is inserted through the rate restraint groove.
And the case and the base through the hold plate.
The plate is connected, and the hold plate is
The engaging protrusion can be rotated at the locking angle of the lock on the next side.
Holding hole and unlocking angle of the lock on the primary side that communicates with the hole
And a opening for allowing the engaging projection to pass therethrough . 2. The existing lock device is provided on a wall surface of a front end portion fixed to a main body, and the base plate has a through hole through which a key hole of the existing lock device is exposed , and the base plate is provided at the front end portion. The locking device according to claim 1, wherein the locking device is slidably mounted, and the case is fixed to the base plate. 3. The above-mentioned structure wherein the engaging projection is rotatably held.
The hole has a locking surface for locking the locking protrusion.
Locking device according to claim 1 or 2, wherein the obtained. 4. The engagement protrusion of the base plate
The locking device according to claim 3, wherein the locking device is inserted into the plate restraining groove through a projection insertion hole that opens on the surface .