JP2023094016A - lock - Google Patents

Abstract

To provide a lock that can be easily replaced.SOLUTION: A rotor 3 is inserted into an outer sleeve 2 which is inserted into a lock mounting hole 103. A stopper 4 is connected to the rotor 3 for rotation therewith. The outer sleeve 2 has a snap-fit pawl 7 that engages the edge of the lock mounting hole 103 to stop the outer sleeve 2 from coming loose. The rotor 3 has an insertion shaft 16 as a flexure limiting portion that limits the flexure of the snap-fit pawl 7 to the disengaged side. The rotor 3 is provided with a plurality of snap-fit pawls 18 that engage the edges of connecting holes 20 that pass through the stopper 4 to stop the stopper 4 from coming loose. When the plurality of snap-fit pawls 26 of a clip 5 are inserted between the snap-fit pawls 18 of the rotor 3 and into the connecting holes 20 from the opposite side of the outer sleeve 2, the snap-fit pawls 26 engage the edges of the connecting holes 20 to stop the clip 5 from coming loose and to limit the flexure of the plural snap-fit pawls 18 of the rotor 3 to the disengaged side.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a lock, and more particularly to a lock that can be replaced easily and conveniently.

2. Description of the Related Art Amusement machines such as crane games and cabinet-type games installed in facilities such as game arcades are provided with one or more locks for locking doors such as maintenance work openings and money collection openings. This lock is initially installed by manufacturers of amusement machines, and generally a cam lock lock (for example, Patent Document 1) or a Hachiman lock (for example, Patent Document 2) is adopted.

JP 2014-47557 A Japanese Utility Model Laid-Open No. 61-20866

Amusement machines of various types and manufacturers are often installed in large-scale facilities. It is troublesome for the facility operator to perform daily operations while managing each key of all the amusement machines under management. Therefore, in order to be able to manage all the amusement machines in the facility with one or a small number of common keys, after receiving a new amusement machine, the facility operator himself locks the amusement machine initially equipped with the lock. I took it off and replaced it with another lock that I prepared myself.

The outer cylinder (case) of the cam lock lock and the 80,000 lock lock mentioned above is inserted into the lock mounting hole of the amusement machine, and a nut that screws onto the female thread of the outer cylinder allows the flange of the outer cylinder and the nut to secure the lock mounting hole. Firmly fastened to the surroundings. Also, the clasp such as a cam lock lock and the rotor are firmly connected with a screw. Such a strong fastening and connection structure is a preferable specification from the viewpoint of crime prevention and durability when the facility side continues to use the initial equipment lock without replacing it.

However, when replacing the lock with a lock prepared by the facility operator, it is troublesome to repeatedly turn the nut and screw using a tool, and the initial lock is wasted, which is not preferable in terms of cost.

It is conceivable that the amusement machine is not initially equipped with a lock, but instead is handed over to the facility operator in a packaging state in which the door is temporarily fixed with curing tape, etc. However, in that case, problems arise in the initial operation check after the amusement machine is brought into the facility. . Specifically, in order to prevent the theft of prizes and cash inside the equipment, a sensor is provided to detect the locked/unlocked state based on the position of the clasp of the lock that locks the important doors such as the maintenance work entrance and the money collection entrance. . Without a lock, an initial operational check cannot be made to see if the sensing device is working properly.

In view of the above background, the problem to be solved by the present invention is to provide a lock that is easy to replace.

As a first means for achieving the above object, the present invention provides an outer cylinder to be inserted into a lock mounting hole, a rotor to be inserted inside the outer cylinder, and a lock rotatable integrally with the rotor. and a lock to be connected, wherein the outer cylinder has a snap-fit pawl that engages with the edge of the lock mounting hole to prevent the outer cylinder from coming off, and the rotor has the snap-fit pawl. In this configuration, a deflection limiter is provided to limit deflection to the disengagement side.

According to the configuration of the first means, when the outer cylinder is inserted into the lock mounting hole, the snap-fit pawl engages the edge of the lock mounting hole to prevent the outer cylinder from coming off, so a tool is used. It is possible to temporarily fix the outer cylinder without any need. When the rotor is inserted inside the temporarily fixed outer cylinder, the rotor's deflection limiting portion limits the deflection of the snap-fit claws of the outer cylinder toward the disengagement side, so that the outer cylinder can be fixed. When the rotor is removed from the outer cylinder, the snap-fit claws of the outer cylinder are deflected to release the engagement with the edge of the lock mounting hole, and the outer cylinder can be removed from the lock mounting hole. In this manner, since there is no need to repeatedly turn the nut using a tool when inserting or removing the outer cylinder from the lock mounting hole, the lock can be easily replaced with another lock.

Preferably, the clasp is formed with a connecting hole penetrating in a direction along the rotation axis of the rotor, and the rotor engages with an edge of the connecting hole to retain the clasp. A clip having a plurality of snap-fit pawls, which is inserted between the plurality of snap-fit pawls of the rotor and into the connecting hole from the side opposite to the outer cylinder with respect to the stopper. wherein the plurality of snap-fit claws of the clip engage with the edge of the connecting hole to prevent the clip from coming off, and limit the deflection of the plurality of snap-fit claws of the rotor toward the disengagement side. It should be provided so that With this configuration, when the snap-fit claws of the rotor inserted inside the outer cylinder are inserted into the coupling holes of the stopper, the snap-fit claws of the rotor engage with the stopper to prevent the stopper from coming off. , it becomes possible to temporarily connect the rotor and the catch without using a tool. If it is from the side opposite to the outer cylinder with respect to the stopper, the plurality of snap-fit claws of the clip can be moved between the plurality of snap-fit claws of the rotor and the stop without being obstructed by the plurality of snap-fit claws of the rotor. It becomes possible to insert it into the gold connecting hole. When the clip is inserted, the plurality of snap-fit claws of the clip engage with the rim of the connecting hole to prevent the clip from coming off, and to limit the deflection of the plurality of snap-fit claws of the rotor toward the disengagement side. It becomes possible to connect the clasp, the rotor and the clip. By bending the snap-fit claw of the clip to release the engagement with the edge of the connecting hole, removing the clip from the connecting hole, and further bending the snap-fit claw of the rotor to release the engagement with the edge of the connecting hole, It is possible to withdraw the catch from the rotor. In this way, when connecting the rotor and the clasp, there is no need to repeat screwdrivers using a tool, so the lock can be more easily exchanged with other locks.

As a second means for achieving the above object, the present invention provides an outer cylinder inserted into a lock mounting hole, a rotor inserted inside the outer cylinder, and a lock rotatable integrally with the rotor. a coupling hole to be connected to the lock, wherein the coupling hole is formed through the latch in a direction along the rotation axis of the rotor, and the rotor is engaged with an edge of the coupling hole. It has a plurality of snap-fit claws for preventing the stopper from coming off, and is inserted between the plurality of snap-fit claws of the rotor and into the connecting hole from the side opposite to the outer cylinder with respect to the stopper. a clip having a plurality of snap-fit claws that engage with the rim of the connecting hole to prevent the clip from slipping out; and the plurality of snap-fit claws of the rotor. A configuration is adopted so as to limit the deflection to the disengagement side.

According to the configuration of the second means, as described above, when connecting the rotor and the clasp, there is no trouble of repeating screwdrivers using a tool. can do.

In the above first or second means, the outer cylinder has slits open toward the rotor at predetermined intervals in the circumferential direction, and the rotor includes projections that can be fitted into the slits. It is preferable to have a beam that bends so as to press the projection against the inside of the outer cylinder. With this configuration, when the rotor rotates toward the predetermined rotation position corresponding to the slit, the rotation of the rotor is relatively slow due to the sliding resistance between the protrusions of the bent beams of the rotor and the inside of the outer cylinder. get heavy. Then, when the rotor reaches a predetermined rotational position, the deflection of the beam of the rotor is elastically restored and the protrusions are fitted into the slits of the outer cylinder. Therefore, even if a movable member interposed between the outer cylinder and the rotor to prevent the rotation of the rotor with respect to the outer cylinder is not provided, the rotor can be stopped at a predetermined rotating position, locked or unlocked. It is possible to make the operator sense that the rotation position corresponding to the lock position has been reached. In addition, since a movable member such as a tumbler and a spring for urging the movable member are not incorporated between the outer cylinder and the rotor, and a specific key for moving the movable member is not required, the lock can be replaced with another lock. It is possible to realize an inexpensive lock for temporary use on the premise of.

As described above, the present invention can provide a lock that can be easily replaced by adopting the configuration according to the first or second means.

1 is an exploded perspective view of a lock according to an embodiment of this invention; FIG. A perspective view showing the appearance when the lock shown in FIG. 1 is assembled. 3 is a perspective view showing an amusement machine equipped with the lock shown in FIG. 2; FIG. Partially enlarged cross-sectional view showing the lock shown in FIG. 3 along the IV-IV line in FIG. Front view near the lock shown in FIG. 2 is an exploded perspective view showing the lock of FIG. 1 from the clip side; FIG. Partially enlarged cross-sectional view taken along line VII-VII in FIG. Enlarged view of the vicinity of the clip in Fig. 4 (a) is a front view of the periphery of the rotor head showing a modification of the present invention, (b) is a partially enlarged sectional view taken along the line bb of (a), and (c) is another modification. Enlarged sectional view around the rotor head shown

A lock according to an exemplary embodiment of the present invention will now be described with reference to the accompanying drawings.

The lock 1 shown in FIGS. 1 and 2 is for locking and unlocking the door 101 of the amusement machine 100 shown in FIG. The door 101 of the amusement machine 100 is provided with a lock mounting hole 103 in its panel 102 as shown in FIG. The lock 1 is inserted into the lock mounting hole 103 and fixed to the edge of the lock mounting hole 103 in the panel 102 . Here, the lock mounting hole 103 means a space, and the edge of the lock mounting hole 103 means a portion of the panel 102 located around the lock mounting hole 103 . Therefore, the edge of the lock mounting hole 103 is a concept that includes the inner peripheral surface of the lock mounting hole 103 and the surface of the plate portion extending from the opening edges on both sides of the lock mounting hole 103 to the periphery of the opening.

As shown in FIGS. 1, 2, and 4, the lock 1 includes an outer cylinder 2 inserted into the lock mounting hole 103, a rotor 3 inserted inside the outer cylinder 2, and the rotor 3 rotating integrally. It consists of four parts, with a catch 4 that can be connected and a clip 5 for connecting the catch 4 and the rotor 3 .

By applying torque to the rotor 3, the latch 4 is rotated coaxially with the rotor 3 between the locked position and the unlocked position, as shown in FIG. In the figure, the rotor 3 drawn with a solid line and the clasp 4 drawn with a hidden line are in the locked position, and the rotor 3 and the clasp 4 drawn with a dashed line are in the unlocked position.

The amusement machine 100 shown in FIG. 3 is provided with a sensor 104 for detecting the locked/unlocked state based on the position of the clasp 4, as shown in FIG. The sensor 104 is, for example, a laser sensor, a magnetic sensor, or the like, and detects whether or not the clasp 4 is present at the locking position.

After the amusement machine 100 shown in FIG. 3 is carried into the facility, in the initial operation check, the rotor 3 is rotated with the door 101 closed as shown in FIGS. The sensor 104 is tested for proper operation by rotating the .

After receiving the amusement machine 100, the facility operator removes the lock 1 and replaces it with another lock. Therefore, the lock 1 is not required to have anti-crime properties, and the mechanical strength is sufficient to allow the amusement machine 100 to be transported from the manufacturer for initial operation check. For this reason, firstly, the assembly of the lock 1 does not require robust durability. Secondly, the lock 1 does not need a movable member such as a tumbler interposed between the outer cylinder 2 and the rotor 3 to prevent the rotor 3 from rotating with respect to the outer cylinder 2. With no member, there is no need to attach a specific key to the lock 1 to activate it. Thirdly, there is little need to make the outer cylinder 2, the rotor 3 and the clip 5 from metal to make them sturdy parts. However, the clasp 4 is made of metal in order to withstand the load during transport and to ensure security even if the clasp 4 is used when replacing the lock with another lock. It is preferable to use it as a member. Focusing on these points, the lock 1 does not include the aforementioned movable member, and the outer cylinder 2, rotor 3 and clip 5 are made of synthetic resin, and the clasp 4 is made of metal.

Hereinafter, the direction along the rotational axis of the rotor 3 will be referred to as the "axial direction," the direction perpendicular to the rotational axis will be referred to as the "radial direction," and the circumferential direction about the rotational axis will be referred to as the "circumferential direction." "Direction".

As shown in FIGS. 1, 4, and 6, the outer cylinder 2 is a tubular member that is open at both ends in the axial direction. The outside of the outer cylinder 2 is radially positioned with respect to the inner peripheral surface of the lock mounting hole 103 by being supported in the radial direction at the fitting portion with the inner peripheral surface of the lock mounting hole 103 . On the other hand, the inner side of the outer cylinder 2 supports the rotor 3 in the radial direction at a fitting portion with one axial end side of the rotor 3 and at a fitting portion with the other axial end side of the rotor 3. The rotor 3 is positioned radially.

An outer collar 6 and a pair of snap-fit claws 7 are formed on the outside of the outer cylinder 2 for engaging the outer cylinder 2 with the edge of the lock mounting hole 103 in the axial direction. The outer collar 6 and the pair of snap-fit claws 7 are rotationally symmetrical at 180° in the circumferential direction.

When the outer collar 6 is inserted into the lock mounting hole 103 from one axial end side of the outer cylinder 2 , the outer collar 6 engages the edge of the lock mounting hole 103 toward the one axial end side of the outer cylinder 2 .

The pair of snap-fit claws 7 are rotationally symmetrical at 180° in the circumferential direction, and each has a cantilever shape. Hereinafter, the direction in which the pair of snap-fit claws face each other in the radial direction is simply referred to as the "opposing direction".

Each snap-fit pawl 7 is discontinuous from each outer flange 6 by slits extending in the axial direction on both sides in the circumferential direction. Each snap-fit pawl 7 has a leg 8 extending axially from its base toward the other end, a locking step 9 hooked toward the edge of the lock mounting hole 103 toward the other end in the axial direction, and a leg. 8 and the locking step 9, and a knob 11 that hooks toward one end in the axial direction of the edge of the lock mounting hole 103. As shown in FIG. The rib 10 increases in the opposite direction from the leg 8 to the locking step 9 toward the other end in the axial direction.

When the outer cylinder 2 is inserted into the lock mounting hole 103 from one end in the axial direction, each snap fit pawl 7 is axially pressed against the edge of the lock mounting hole 103 , so that each snap fit pawl 7 is formed inside the outer cylinder 2 . When the rib 10 gets over the edge of the lock mounting hole 103, the locking step 9 is elastically restored to the outside of the outer cylinder 2 so that the locking step 9 is positioned on the other end side of the lock mounting hole 103 in the axial direction. In addition, the knob 11 faces the edge of the lock mounting hole 103 toward one end in the axial direction. As long as this state is maintained, even if the outer cylinder 2 tries to displace toward the other end side in the axial direction with respect to the edge of the lock mounting hole 103, the locking step 9 of the pair of snap fit claws 7 will remain in the lock mounting hole 103. The outer cylinder 2 can be engaged with the edge of the lock mounting hole 103 in the axial direction to prevent the outer cylinder 2 from slipping off to the edge of the lock mounting hole 103. Even if an attempt is made, the outer collar 6 and the knobs 11 of the plurality of snap-fit claws 7 are engaged with the rim of the lock mounting hole 103 in the axial direction to prevent the outer cylinder 2 from slipping off from the rim of the lock mounting hole 103. can.

The formation of the ribs 10 facilitates the elastic deformation of the legs 8 toward the inside of the outer cylinder 2 when the outer cylinder 2 is inserted into the lock mounting hole 103. can also improve the strength of

Slits 12 open toward the rotor 3 are formed in the outer cylinder 2 at predetermined intervals in the circumferential direction. Each slit 12 radially penetrates between the inner side and the outer side of the outer cylinder 2 . The predetermined intervals are set at 90° intervals in the circumferential direction, and the slits 12 are formed at a total of four locations. Inside the outer cylinder 2, as shown in FIGS. 1 and 4, a circular arc surface 13 (see FIGS. 6 and 7) continuous between the slits 12 adjacent in the circumferential direction A filling groove 14 extending from the pair of slits 12 toward the other end in the axial direction is formed. These grooves 14 and the like are for determining the rotation position of the rotor 3, which will be described later.

As shown in FIGS. 4 and 6, a support surface 15 for preventing displacement of the stopper plate 4 toward the other axial end (toward the outer cylinder 2) is provided at the tip of the outer cylinder 2 at one end in the axial direction. formed. The support surface 15 is an annular surface along the radial direction on the entire circumference. A surface portion of the stop metal 4 that axially faces the support surface 15 of the outer cylinder 2 can slide on the support surface 15 in the circumferential direction during rotation.

The rotor 3 includes an insertion shaft 16 (see FIGS. 1, 2, 4, and 7) inserted between the pair of snap-fit claws 7 of the outer cylinder 2, and the other end side of the insertion shaft 16 in the axial direction. A rotor head 17 (see FIGS. 1, 4, and 6) having a diameter expanded from , and a pair of snap-fit claws 18 (see FIGS. 1, 6, and 7) projecting axially from the insertion shaft 16 toward one end side. , and a pair of beams 19 (see FIGS. 1, 6, and 8) extending in the air from the insertion shaft 16 .

As shown in FIGS. 1 and 6, the clasp 4 is formed with a connecting hole 20 that penetrates the clasp 4 in the axial direction. The connecting hole 20 has an elongated hole shape having a long axis in the facing direction of the pair of snap-fit claws 18 of the rotor 3 and a short axis in a direction orthogonal to the facing direction.

As shown in FIGS. 1, 6, and 7, the pair of snap-fit claws 18 of the rotor 3 are rotationally symmetrical at 180° in the circumferential direction, and each has a cantilever shape. Each of these snap-fit claws 18 has a leg 21 extending axially from its base toward one end, and a locking head 22 that engages the edge of the connecting hole 20 of the clasp 4 toward the other axial end. Consists of Each locking head 22 has a stepped surface 22a rising from the leg 21 toward the pair of snap-fit claws 18 and a tapered surface 22b extending from the stepped surface 22a to one end in the axial direction.

When the rotor 3 is inserted into the outer cylinder 2 toward one end in the axial direction, the pair of locking heads 22 protrude out of the outer cylinder 2 from the mouth of the outer cylinder 2 at one end in the axial direction. The pair of locking heads 22 are inserted into the connecting holes 20 in such a way that the facing direction thereof coincides with the major axis direction of the connecting holes 20 of the clasp 4 . At this time, the tapered surface 22b of each locking head 22 is pressed against the edge of the connecting hole 20 in the axial direction, so that the pair of snap-fit claws 18 of the rotor 3 are flexed in the opposing direction away from the edge of the connecting hole 20. When the tapered surface 22b of each locking head 22 gets over the edge of the connecting hole 20, the stepped surface 22a of each locking head 22 moves to the edge of the connecting hole 20 by elastically restoring to the side where the deflection is eliminated. While facing toward the other end in the axial direction, the stopper plate 4 is axially supported by the support surface 15 of the outer cylinder 2 (see FIG. 7). As long as this connected state is maintained, even if the stopper plate 4 tries to displace to one end side in the axial direction with respect to the outer cylinder 2 and the rotor 3, the locking heads 22 of the pair of snap-fit claws 18 will remain in the connecting hole 20. The retainer 4 is axially engaged with the edge to prevent it from being separated from the pair of snap-fit pawls 18, and the rotor 3 and the retainer 4 are axially aligned with the outer cylinder 2. Even if the outer cylinder 2 is to be displaced toward the end, the support surface 15 of the outer cylinder 2 can support the stopper 4 in the axial direction and prevent the displacement.

Further, in the above-described connected state, as shown in FIG. 4, the rotor head 17 is axially aligned with respect to the bearing surface 23 (see also FIG. 1) formed in a stepped manner inside the outer cylinder 2 and the knob 11. facing toward one end side of the Therefore, even if the rotor 3 tries to displace toward one end in the axial direction with respect to the outer cylinder 2, the bearing surface 23 and the like of the outer cylinder 2 support the rotor head 17 in the axial direction and prevent the displacement. can be done. Therefore, as long as the above-described connected state is maintained, the state in which the outer cylinder 2, the rotor 3, and the stopper plate 4 are assembled in a trinity is maintained.

Further, in the above-described connected state, the pair of snap-fit claws 18 of the rotor 3 and the rims of the stopper plate 4 are non-circular in the circumferential direction and are fitted in such a shape that they can be engaged with each other in the circumferential direction. and the stopper plate 4 can transmit torque.

The rotor head 17 is formed with an operation input portion 24 for connecting an operation tool having a predetermined shape to apply torque to the rotor 3 (see FIGS. 1 and 4). The operation input portion 24 is formed in a groove shape. The bottom surface of the groove of the operation input unit 24 is concavely curved so as to stably receive a coin such as a coin or a game medal as an operation tool.

In the above-described connected state, the insertion shaft 16 of the rotor 3 is positioned between the pair of snap-fit claws 7 of the outer cylinder 2, and even if the rotor 3 rotates between the locked position and the unlocked position, each snap It faces the fitting claw 7 with a slight radial clearance R1. With respect to the opposing direction of the pair of snap-fit claws 7 of the outer cylinder 2, the size of the radial clearance R1 is such that the engaging step 9 of the pair of snap-fit claws 7 of the outer cylinder 2 is aligned with the edge of the lock mounting hole 103 in the axial direction. is set sufficiently smaller than the engagement allowance that can be opposed to the For this reason, as long as the above-described connected state is maintained, the insertion shaft 16 of the rotor 3 is positioned so that the pair of snap-fit pawls 7 of the outer cylinder 2 do not come off the edge of the lock mounting hole 103 . It can function as a deflection limiter that limits deflection to the disengagement side (the inside of the outer cylinder 2).

As shown in FIGS. 1, 4 and 6, each beam 19 of the rotor 3 includes a projection 25 protruding radially toward the outer cylinder 2 from a hollow, circumferentially extending double-supported beam-shaped bridge portion. . The protrusion 25 has a shape that can be fitted into the slit 12 of the outer cylinder 2 . The projections 25 of the pair of beams 19 can be inserted into the slits 12 through the insertion grooves 14 of the outer cylinder 2 when the rotor 3 is inserted inside the outer cylinder 2 . When the pair of protrusions 25 are fitted into the slits 12 of the outer cylinder 2 in the above-described connected state, these protrusions 25 resist the rotational behavior of the rotor 3 . For this reason, even if the above-described movable member is not provided, the rotor 3 will not rotate arbitrarily due to the moment load from the clasp 4, and the rotor 3 will not rotate unless a torque exceeding a predetermined level is input to the rotor 3. is rested at any pivoted position at 90° intervals. On the other hand, when a torque greater than a predetermined value is input to the rotor 3 , the pair of beams 19 bends and the pair of projections 25 escape from the corresponding slits 12 , and each beam 19 pulls the projections 25 out of the circular arc surface 13 of the outer cylinder 2 . (See FIG. 7). When the projection 25 slides, the rotation resistance of the rotor 3 is relatively large. If the resistance is abruptly reduced (see FIG. 4) and the rotation of the rotor 3 still proceeds, the projection 25 will get caught in the edge of the slit 12 and the rotation resistance of the rotor 3 will be abruptly increased. Therefore, the operator's hand twisting the operation input portion 24 of the rotor 3 with a coin is given a sense of resistance to sense that the rotor 3 has reached the locked position or the unlocked position.

As shown in FIGS. 1, 4, and 8, the clip 5 connects the pair of snap-fit claws 18 of the rotor 3 from one axial end side (that is, the side opposite to the outer cylinder 2) of the stopper plate 4. A pair of snap-fit claws 26 inserted into the connecting holes 20 of the clamping plate 4 and a knob 27 connecting the roots of the pair of snap-fit claws 26 and protruding in the opposite direction of the pair of snap-fit claws 26. It is configured.

A pair of snap-fit claws 26 of the clip 5 are rotationally symmetrical at 180 degrees in the circumferential direction, and each has a cantilever shape. Each of these snap-fit claws 26 has a leg 28 extending from its base toward the other end in the axial direction, and a locking head 29 that engages the edge of the connecting hole 20 of the clasp 4 toward the one end in the axial direction. Consists of Each locking head 29 has an inclined stepped surface 29a (see FIG. 8) that rises from the leg 28 in the direction in which the pair of snap-fit claws 26 face each other, and a tapered surface 29b that extends from the inclined stepped surface 29a to the other end in the axial direction. have. Here, the angle formed by the inclined stepped surface 29a and the rotational axis of the rotor 3 is set to be larger than the angle formed by the tapered surface 29b and the rotational axis of the rotor 3. As shown in FIG.

When the pair of snap-fit claws 26 of the clip 5 are inserted toward the other end in the axial direction of the clasp 4 in the above-described connected state, the pair of locking heads 29 are aligned with the clasp 4 in the opposite direction. is inserted into the connecting hole 20 so that the direction of the minor axis of the connecting hole 20 is aligned. At this time, the tapered surface 29b of each locking head 29 is pressed against the edge of the connecting hole 20 in the axial direction, so that the pair of snap-fit claws 26 of the clip 5 move away from the edge of the connecting hole 20 in the opposing direction. When the tapered surface 29b of each locking head 29 is bent and crosses over the edge of the connecting hole 20, the inclined stepped surface 29a of each locking head 29 moves toward the connecting hole 20 by elastically restoring to the side where the bending is eliminated. The edge faces toward one end in the axial direction, and the knob 27 comes into an inserted state in which it abuts against the pair of snap-fit claws 18 of the rotor 3 in the axial direction (see FIG. 8). As long as this inserted state is maintained, even if the clip 5 tries to displace parallel to one end side of the axial direction with respect to the clasp 4 , the locking heads 29 of the pair of snap-fit claws 26 will not touch the edge of the connecting hole 20 . In contrast, the clip 5 can be engaged in the axial direction to prevent the clip 5 from being separated from the clasp 4, and even if the clip 5 tries to be displaced to the other end side in the axial direction with respect to the rotor 3 and the clasp 4. , the pair of snap-fit claws 18 (see FIG. 7) of the rotor 3 can axially support the clip 5 to prevent the displacement.

7 and 8, the pair of snap-fit pawls 26 of the clip 5 are positioned between the pair of snap-fit pawls 18 of the rotor 3 when in the above-described inserted state. It faces the fitting claw 18 with a slight gap. With respect to the direction in which the pair of snap-fit claws 18 of the rotor 3 face each other, the size of the gap between the snap-fit claw 18 and the snap-fit claw 26 on the same side is It is set to be sufficiently smaller than the engagement margin that can face the edge of the connection hole 20 of the metal 4 in the axial direction. For this reason, as long as the aforementioned insertion state is maintained, the pair of snap-fit claws 26 of the clip 5 are arranged so that the pair of snap-fit claws 18 of the rotor 3 do not come off the edges of the connecting hole 20 of the stopper plate 4 . Deflection of the snap-fit claw 18 toward the disengagement side (the side approaching each other in the longitudinal direction of the connecting hole 20) can be restricted.

A procedure for attaching the lock 1 to the amusement machine 100 will be described (see FIGS. 1, 4, 7 and 8 as appropriate). First, only the outer cylinder 2 is inserted into the lock mounting hole 103 so that the pair of snap-fit claws 7 of the outer cylinder 2 are hooked on the edge of the lock mounting hole 103 . Next, the rotor 3 is inserted inside the outer cylinder 2 , the pair of protrusions 25 are fitted into the pair of slits 12 from the insertion groove 14 , and the rotor head 17 is brought into contact with the bearing surface 23 of the outer cylinder 2 . Next, the edge of the connection hole 20 of the stopper metal 4 is pushed through the pair of snap-fit claws 18 of the rotor 3 so that the pair of snap-fit claws 18 are hooked on the edge of the connection hole 20 . Next, the pair of snap-fit claws 26 of the clip 5 are inserted into the connection hole 20 of the stopper plate 4 from the side opposite to the outer cylinder 2 to be hooked to the edge of the connection hole 20 . As a result, the assembly of the lock 1 is completed and the mounting of the lock 1 is also completed. No tools are required through these installation processes. In this completed state, the pair of snap-fit pawls 26 of the clip 5 restricts the deflection of the pair of snap-fit pawls 18 of the rotor 3 toward the disengagement side, and the pair of snap-fit pawls 18 of the rotor 3 engages the connecting hole 20. In order to prevent detachment from the rim, the connection between the stopper 4, the support surface 15 of the outer cylinder 2, and the rotor 3 is not easily released, and the insertion shaft 16 of the rotor 3 engages the pair of snap-fits of the outer cylinder 2. In order to limit the deflection of the claws 7 toward the disengagement side and prevent the pair of snap-fit claws 7 of the outer cylinder 2 from coming off the rim of the lock mounting hole 103, the outer cylinder 2 is positioned against the rim of the lock mounting hole 103. The fixed state by fitting and axial locking is also not easily released.

On the other hand, when the facility operator replaces the lock 1 with another lock, it is necessary to remove the lock 1 . The procedure for this removal will be explained. First, put your finger on the knob 27 of the clip 5 of the lock 1 from the direction of arrow A in FIG. 20, the locking head 29 on one side is removed from the edge of the connecting hole 20 and is in contact with the inner wall surface of the connecting hole 20. diagonally. Next, by pinching the locking heads 22 of the pair of snap-fit claws 18 of the rotor 3 with fingers and bending the snap-fit claws 18, they are removed from the edge of the connecting hole 20, and the stopper 4 is axially moved from the rotor 3. separate. Next, the pair of snap-fit claws 18 of the rotor 3 are pushed toward the other end in the axial direction to extract the rotor 3 from the outer cylinder 2 . Finally, the knobs 11 of the pair of snap-fit claws 7 of the outer cylinder 2 are pinched with fingers and removed from the edge of the lock mounting hole 103, and the outer cylinder 2 is pulled out from the lock mounting hole 103. This completes the removal of the lock 1. No tools are required during these removal processes.

Since the clasp 4 is made of metal and has sufficient mechanical strength, it can be used as a clasp for other locks to be replaced. If the clasp 4 can be diverted, it is advantageous for normal operation of the sensor 104 by suppressing changes in physical parameters that hinder detection by the sensor 104 (for example, detection distance with the sensor 104, reflectance, etc.). becomes.

As described above, the lock 1 includes the outer cylinder 2 inserted into the lock mounting hole 103, the rotor 3 inserted inside the outer cylinder 2, and the clasp 4 integrally rotatably connected to the rotor 3. and, the outer cylinder 2 has a plurality of snap-fit claws 7 that engage with the edge of the lock mounting hole 103 to prevent the outer cylinder 2 from coming off, and the rotor 3 releases the engagement of the plurality of snap-fit claws 7. By having the insertion shaft 16 as a deflection limiting portion for limiting deflection to the side, the outer cylinder 2 is temporarily fixed with a plurality of snap-fit claws 7 without using tools, and the rotor is mounted inside the temporarily fixed outer cylinder 2. 3 can be inserted to fix the outer cylinder 2. On the other hand, if the rotor 3 is pulled out from the outer cylinder 2, the plurality of snap-fit claws 7 of the outer cylinder 2 can be deflected with fingers so that the edge of the lock mounting hole 103 can be secured. The outer cylinder 2 can be pulled out from the lock mounting hole 103 by releasing the engagement with the lock mounting hole 103 . Therefore, according to the lock 1, when the outer cylinder 2 is inserted into or removed from the lock mounting hole 103, there is no need to repeatedly turn the nut using a tool, so the lock can be easily replaced with another lock.

In addition, the lock 1 has a connecting hole 20 formed through the clasp 4 in the direction along the rotational axis of the rotor 3 , and the rotor 3 engages with the edge of the connecting hole 20 to hold the clasp 4 . A plurality of snaps having a plurality of snap-fit claws 18 for preventing slippage and inserted between the plurality of snap-fit claws 18 of the rotor 3 and into the connecting hole 20 from the side opposite to the outer cylinder 2 with respect to the stopper plate 4. A clip 5 having fitting claws 26 is further provided, and the plurality of snap-fit claws 26 of the clip 5 are engaged with the edge of the connecting hole 20 to prevent the clip 5 from coming off, and the plurality of snap-fit claws 18 of the rotor 3 are engaged. By restricting the deflection to the disengagement side, when the snap-fit claws 18 of the rotor 3 inserted inside the outer cylinder 2 are inserted into the connecting holes 20 of the stopper plate 4, the rotor 3 Since the snap-fit claws 18 engage with the clasp 4 to prevent the clasp 4 from coming off, the rotor 3 and the clasp 4 can be temporarily connected without using a tool. The plurality of snap-fit claws 26 of the clip 5 can be inserted between the plurality of snap-fit claws 18 of the rotor 3 and into the connecting holes 20 of the stopper plate 4 without being obstructed by the fitting claws 18. The plurality of snap-fit claws 26 engage with the edge of the connecting hole 20 to prevent the clip 5 from coming off, and to limit the deflection of the plurality of snap-fit claws 18 of the rotor 3 toward the disengagement side, the stopper is provided. While the metal 4, the rotor 3 and the clip 5 can be connected, the knob 27 of the clip 5 can be hooked obliquely with a finger to raise the knob 27 from one side in the direction of the short axis of the connecting hole 20, thereby connecting the connecting hole 20. The snap-fit claws 26 are disengaged from the edges of the connecting holes 20, the clip 5 is pulled out from the connecting holes 20, and the plurality of snap-fit claws 18 of the rotor 3 are bent with fingers to release the engagement with the edges of the connecting holes 20. , the stopper plate 4 can be pulled out from the rotor 3. Therefore, according to the lock 1, when connecting the rotor 3 and the clasp 4, there is no trouble of repeating screwdrivers using a tool. can be done.

In lock 1, outer cylinder 2 has slits 12 open toward rotor 3 at predetermined intervals in the circumferential direction. When the rotor 3 rotates toward the predetermined rotation position corresponding to the slit 12, the protrusion 25 of the deflected beam 19 of the rotor 3 and the outer cylinder Rotation of the rotor 3 becomes relatively heavy due to the sliding resistance with the inner side of the rotor 2, and when the rotor 3 reaches a predetermined rotation position, the deflection of the beam 19 of the rotor 3 is elastically restored, and the projection 25 is moved to the outer cylinder 2. Therefore, the rotor 3 can be positioned at a predetermined rotational position without providing a movable member interposed between the outer cylinder 2 and the rotor 3 to prevent the rotation of the rotor 3 with respect to the outer cylinder 2. and the operator can sense that it has reached a rotating position corresponding to the locked or unlocked position. Since no specific key is required, it is possible to realize an inexpensive temporary lock on the assumption that it will be replaced with another lock.

In this embodiment, since the insertion shaft 16 is used as a deflection limiter, the radial gap R1 (see FIG. 4) between the insertion shaft 16 and each snap fit claw 7 of the outer cylinder 2 is made small, thereby When the rotor 3 is inserted into the cylinder 2, the pair of snap-fit claws 7 of the outer cylinder 2 are disengaged from the edge of the lock mounting hole 103 so that the snap-fit claws 7 do not come off the edge of the lock mounting hole 103. Although the configuration is such that the bending toward the inner side is limited, the outer peripheral portion of the rotor head 17 may be used as the bending limiting portion. In this case, the radial gap R2 (see FIGS. 4 and 5) between the outer peripheral portion of the rotor head 17 and the inner wall of the tab 11 of each snap-fit claw 7 of the outer cylinder 2 is made small so that the rotor is attached to the outer cylinder 2. 3 can be configured to limit the bending of the pair of snap-fit claws 7 toward the disengagement side (inside the outer cylinder 2). Note that both the insertion shaft 16 and the rotor head 17 may be configured to function as the deflection limiter.

In addition, by making the radial gap between the portion of the rotor 3 functioning as a deflection limiter and each snap fit claw 7 small, the pair of snap fit claws can be secured while the rotor 3 is inserted into the outer cylinder 2 . 7 to the disengagement side (the inside of the outer cylinder 2), but as in the modification shown in FIGS. A flange portion 17a having a diameter larger than the maximum diameter of the rotor head 11 is provided, or a cup portion 17c that covers the knob 11 from the axial and radial directions is provided on the rotor head 17 as in another modification shown in FIG. It may be provided on the front side of the front. With this configuration, the rotor head 17 covers the knob 11 of the snap-fit claw 7 on the near side of the front, making it impossible to pinch the knob 11 on the near side of the front with fingers. Deflection toward the disengagement side can be restricted.

Further, in this embodiment, the case where the outer cylinder 2 of the lock 1 is fixed to the panel 102, which is a component of the door 101, is illustrated. It is also possible to change so that the outer cylinder is fixed here.

Also, in this embodiment, the snap-fit claws 7 are provided at a plurality of locations (for example, two locations) on the outer cylinder 2, but they may be provided at only one location or at three or more locations.

It should be considered that the embodiments disclosed this time are illustrative in all respects and not restrictive. Therefore, the scope of the present invention is indicated by the claims, and is intended to include all changes within the meaning and range of equivalents of the claims.

1 Lock 2 Outer cylinder 3 Rotor 4 Stopper 5 Clip 7 Snap-fit pawl 12 Slit 16 Insertion shaft (deflection limiter)
17 Rotor head 18 Snap-fit claw 19 Beam 20 Connection hole 25 Projection 26 Snap-fit claw 103 Lock mounting hole

Claims (4)

A lock comprising an outer cylinder inserted into a lock mounting hole, a rotor inserted inside the outer cylinder, and a clasp rotatably connected to the rotor integrally,
The outer cylinder has a snap-fit claw that engages with the edge of the lock mounting hole to prevent the outer cylinder from coming off,
A lock according to claim 1, wherein said rotor has a deflection limiting portion for limiting deflection of said snap-fit pawl toward the disengagement side. A connection hole is formed in the stopper plate so as to penetrate in a direction along the rotation axis of the rotor,
the rotor has a plurality of snap-fit claws that engage with the edge of the connecting hole to prevent the retainer from coming off;
further comprising a clip having a plurality of snap-fit pawls inserted between the plurality of snap-fit pawls of the rotor and into the connecting hole from the side opposite to the outer cylinder with respect to the stopper,
The plurality of snap-fit claws of the clip are provided to engage with the edge of the connecting hole to prevent the clip from coming off, and to limit the deflection of the plurality of snap-fit claws of the rotor toward the disengagement side. 2. A lock according to claim 1, wherein the lock is A lock comprising an outer cylinder inserted into a lock mounting hole, a rotor inserted inside the outer cylinder, and a clasp rotatably connected to the rotor integrally,
A connection hole is formed in the stopper plate so as to penetrate in a direction along the rotation axis of the rotor,
the rotor has a plurality of snap-fit claws that engage with the edge of the connecting hole to prevent the retainer from coming off;
further comprising a clip having a plurality of snap-fit pawls inserted between the plurality of snap-fit pawls of the rotor and into the connecting hole from the side opposite to the outer cylinder with respect to the stopper,
The plurality of snap-fit claws of the clip are provided to engage with the edge of the connecting hole to prevent the clip from coming off, and to limit the deflection of the plurality of snap-fit claws of the rotor toward the disengagement side. A lock characterized by being The outer cylinder has slits open toward the rotor at predetermined intervals in the circumferential direction, and the rotor includes projections that can be fitted into the slits and presses the projections against the inside of the outer cylinder. 4. A lock as claimed in any one of claims 1 to 3 having a deflecting beam.

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