TWI384109B - Cylinder lock protect apparatus - Google Patents

Description

Cylinder lock protection device (3)

The present invention claims the priority of the Japanese Patent Application No. 2008-045546, filed on Feb. 27, 2008, the entire disclosure of which is hereby incorporated by reference.

Background of the invention Field of invention

The present invention relates to a cylinder lock protection device that prevents damage to a cylinder lock that is equipped in a two-wheeled vehicle or the like.

Background of the invention

In the past, there has been a cylinder lock for preventing a cylinder lock equipped in a two-wheeled vehicle or the like from being illegally opened and broken by a non-permitted person by inserting a scissors or a screwdriver into a key hole of the cylinder lock. Device (for example, see Patent Document 1). The protection device includes a baffle that can be rotated from a closed position in which the keyhole is closed to an open position in which the keyhole is opened, a torsion spring for pushing the baffle from the open position to the closed position, and a fixing a shutter button located at the open position, a magnetic lock for locking the shutter by holding the shutter at the closed position, thereby closing the keyhole, and a magnetic function for releasing a magnet A magnetic key that locks the magnetic lock.

According to the foregoing protection device, when the button is pressed, the shutter is rotatably moved to the closed position by the urging force of the torsion spring, whereby the keyhole can be closed, and when the magnetic lock (locking mechanism) is used Magnetic key unlock The baffle is rotatably moved to the open position. The baffle is constructed separately from the magnetic lock (locking mechanism) and thus they are operated through a slider.

[Patent Document 1] JP-A-2003-239581

However, according to the conventional cylinder lock protection device described above, since the shutter and the locking mechanism are formed separately from each other and thus they are separately operated by a slider, the following problems occur. That is, in order to obtain the operating range of the slider, the size of the device becomes large. Further, since the shutter is rotatably moved to the open position when the magnetic lock (locking mechanism) is unlocked by the magnetic key, the structure of the apparatus is complicated.

Summary of invention

One or more embodiments of the present invention provide a cylinder lock protector that maintains its operability and that can use a simplified structure to reduce its manufacturing cost and its size.

According to one or more embodiments of the present invention, a cylinder lock protection device for protecting a cylinder lock includes: a casing 1 disposed on an upper side of a key hole Sa formed in the cylinder lock S a baffle 2 movable in the housing 1 and moving between a closed position and an open position to open and close the keyhole Sa; a pushing mechanism 3 for opening the baffle 2 The position is pushed to the closed position; the locking mechanism 4 is for locking the baffle in the closed position; the opening mechanism MK is for releasing the locked state of the baffle 2 locked by the locking mechanism 4, so that the baffle 2 is The closed position is moved to the open position; and the operating mechanism 5 is configured to fix the baffle at the open position 2. The operating mechanism 5 includes an operating portion 5a projecting from the housing 1, and the fixed state of the shutter 2 is released by operating the operating portion 5a. The baffle 2 is integrally formed with the locking mechanism 4 as a single member.

According to the cylinder lock protection device, since the fixed state of the baffle can be released by operating the operation portion thereof, and the baffle and the locking mechanism are integrally formed as a single member, the cylinder lock protection device can be maintained It is operative and its structure is simplified, whereby the manufacturing cost and size of the device can be reduced.

In addition, the baffle 2 may include a rounded edge portion 2d. When the baffle 2 is moved to the closed position with a key inserted into the keyhole Sa of the cylinder lock S, the rounded edge portion may be In contact with the key.

When the edge portion of the baffle to be in contact with the key is rounded, even if the closing mechanism is erroneously operated, the key is inserted into the key hole of the cylinder lock and the baffle is thus moved to the closed position. The key is held and held in the baffle, and the key can be easily withdrawn.

Further, the urging mechanism 3 may include a torsion spring 3 disposed on a shaft L different from the rotating shaft 1ab of the shutter 2.

When the pushing mechanism is constituted by a torsion spring disposed on a shaft different from the rotating shaft of the baffle, the thickness of the structure of the present invention can be reduced if compared with a structure in which a torsion spring is disposed on the rotating shaft of the baffle .

In addition, the baffle 2 may include a protrusion 2c that is in contact with the torsion spring 3 and can receive the urging force of the torsion spring 3, and the protrusion 2c and the torsion spring 3 may be respectively formed to have a damper 2 according to the baffle 2 The angle of rotation changes the direction of the urging force applied by the torsion spring 3 to the protrusion 2c and at the direction The shape of the contact position between the 2c and the torsion spring 3.

When the protrusion and the torsion spring are formed to have a rotation angle according to the baffle, not only the direction of the urging force applied to the protrusion by the torsion spring but also the shape of the contact position between the torsion spring and the protrusion can be changed. At this time, the urging force of the torsion spring can be transmitted to the torsion spring with high efficiency, so that the baffle can be surely operated.

Further, a contact portion between the operation portion 5a and the shutter 2 may include a tapered portion 2ba.

When the contact portion between the operation portion and the shutter includes a tapered portion, the fixed state of the operation portion of the shutter can be more smoothly achieved.

Other aspects and advantages of the present invention will be apparent from the description, drawings and claims.

Simple illustration

Figure 1 is a top plan view of a cylinder lock protection device in accordance with an embodiment of the present invention.

Fig. 2 is a longitudinal sectional view of the cylinder lock protection device (taken along line II-II shown in Fig. 1).

Figure 3 is a top plan view of the aforementioned cylinder lock protection device showing a state in which a cover is removed therefrom.

Figure 4 is a perspective view of the baffle and locking mechanism and a button formed integrally in the above-described cylinder lock protection device.

Figure 5 is a perspective view of the baffle and locking mechanism and a button formed integrally in the aforementioned cylinder lock protection device, respectively, when they are The state of viewing from another angle.

Figure 6 is a top plan view and a rear view of the baffle and locking mechanism formed integrally in the cylinder lock protection device.

7A to 7D are views for explaining a state in which the torsion springs respectively provided when the shutter is rotated in the above-described cylinder lock protector.

Detailed description of the embodiment

An embodiment of the present invention will be described below with reference to the drawings.

A cylinder lock protection device of this embodiment is a device disposed on an upper side of a keyhole of a cylinder lock disposed in a two-wheeled vehicle, according to which the keyhole can be opened and closed from the outside. Thereby the cylinder lock can be protected. As shown in the first to fourth figures, the cylinder lock protection device mainly comprises a casing 1 having a box portion 1a and a cover portion 1b, a baffle 2, a torsion spring 3 as a pushing mechanism, and a composition The magnetic lock locking mechanism 4 (see Fig. 2), a magnetic key MK as an opening mechanism, and a button 5 as an operating mechanism.

As shown in Fig. 2, the box portion 1a made of a molded mold includes not only an insertion hole 1aa formed substantially in the center thereof (see Figs. 3 to 5), but also includes a setting in the insertion. The magnetic lock protrusion portion 1ab near the hole 1aa. A cylinder lock S of a vehicle can be inserted into the insertion hole 1aa, and the insertion hole 1aa also allows the keyhole Sa of the cylinder lock to face above the insertion hole 1aa. The magnetic lock projection portion 1ab includes a plurality of (four in the embodiment) receiving holes 1ac on the front end surface thereof for receiving the associated magnet M through its associated spring S1; and is also configured to lock the lock The circular portion 4a of the mechanism 4 can be rotated The outer peripheral surface of the magnetic lock projection portion 1ab is fitted. Here, in Fig. 2, the symbol "a" indicates an O-ring for sealing between the circular portion 4a of the locking mechanism 4 and the magnetic lock projection portion 1ab.

a cover portion 1b made of a predetermined mold-molding material covers the upper surface side of the box portion 1a to receive components such as the baffle 2 and the like, and is formed in the box portion 1a and In the internal space between the cover portions 1b. The cover portion 1b includes a hole 1ba formed at a position corresponding to an insertion hole 1aa for inserting a start key (not shown) into the key hole Sa, and an operation portion 5a into which the button 5 can be inserted. The hole 1bb and a hole 1bc into which the fitting portion 4a of the locking mechanism 4 can be inserted.

The operation portion 5a of the button 5 is assembled by the upper surface side of the cover portion 1b, and the button 5 and the locking mechanism 4 are respectively positioned on both sides and the hole 1ba facing the key hole Sa is disposed therebetween. . Here, the upper surface of the lid portion 1b is formed to be substantially flat except for the operation portion 5a of the button 5.

The locking mechanism 4 is made of a non-magnetic material and is integrally formed with the baffle 2 as a single member, and the locking mechanism 4 includes a fitting portion 4b on the front surface side thereof, and most of the back portion The fitting hole 4c on the side. A magnetic key (opening mechanism) MK is engageable with the fitting portion 4b, and a magnet M provided on the front end of the magnetic lock projection portion 1ab can be fitted and fixed in the fitting hole 4c. When the locking mechanism 4 is assembled to the magnetic lock projection 1ab, the fitting holes 4c can be fitted and fixed to the magnet M pushed up by the spring S1.

That is, when the baffle 2 is positioned at the closed position, the magnetic is formed The receiving hole 1ac in the front end of the locking projection portion 1ab is aligned with the fitting holes 4c; and, in the closed position, the magnets M are moved into the fitting holes 4c to thereby fix and lock the locking Agency 4. On the other hand, the magnetic key MK is used to release the locked state of the shutter 2 generated by the locking mechanism 4, and the shutter 2 is moved from the closed position to the open position. The magnetic key MK is constituted by, for example, a portion integrally formed with a grip portion (a portion made of a resin) of a start key of a two-wheeled vehicle. Further, in detail, in the front end of the magnetic key MK, a plurality of magnets are embedded at positions corresponding to the magnets M. These magnets are provided such that the polarities of the magnets having different polarities on the upper surface side of the magnets M face the magnets M in a state in which the magnetic key MK is fitted to the fitting portion 4b of the lock mechanism 4 The polarity of the upper surface side.

According to this configuration, in the state where the locking mechanism 4 (the shutter 2) is locked, when the magnetic key MK is inserted into the embedded portion 4b, due to the magnets M and the magnets disposed in the magnetic key MK The repulsive force generated between the magnets M moves downward against the urging force of the spring S1, thereby releasing the locked state of the lock mechanism 4 (baffle 2). In this state, when the magnetic key MK is rotated, the locking mechanism 4 moves together with the magnetic key MK due to the fitting of the fitting portion 4b with the magnetic key MK, so that the locking mechanism 4 can be engaged with the magnetic key MK. The plates 2 rotate together.

As previously mentioned, the baffle 2 is integrally formed with the locking mechanism 4 and is made of a non-magnetic material. Moreover, the baffle 2 includes a closing portion 2a for covering the key hole Sa at the closed position, an arm portion 2b disposed and protruding outward from the closing portion 2a, and a The back of the baffle 2 protrudes The protrusion 2c is raised. Thus, when the locking mechanism 4 is engaged with the magnetic lock projection portion 1ab and the former is rotated around the latter, the closing portion 2a is at a position (a closed position) for closing the hole 1ba of the cover portion 1b and a The movement is separated from the hole 1ba to open it (an open position), whereby the keyhole Sa can be opened and closed by the outside. Here, the overall shape of the baffle 2 can be arbitrarily changed depending on the overall shape and size of the casing 1 and the configuration of other constituent elements.

The projection 2c is a portion which is in contact with the torsion spring 3 and which can receive the urging force of the torsion spring 3; and by this urging force, the shutter 2 will always be pushed from the open position toward the closed position. The torsion spring 3 is a part constituting the pushing mechanism of the present invention; and, in order to push the baffle 2 from the open position to the closed position, the torsion spring 3 is disposed on the rotating shaft of the baffle 2 (ie The magnetic lock projections 1ab) are on different axes L.

In detail, the torsion spring 3 is wound around a shaft L provided on and protruded from the box portion 1a (or the cover portion 1b), and its base end 3b is fixed to the side of the box portion 1a and the front end 3a side It is in contact with the projection 2c, whereby the driving force can be transmitted thereto. Further, as shown in Fig. 7, during the turning operation of the shutter 2, the front end 3a side of the torsion spring 3 is always in contact with the projection 2c.

In addition, the protrusion 2c and the torsion spring 3 are respectively formed to have a rotation angle according to the baffle 2, and not only the direction of the urging force applied to the protrusion 2c by the torsion spring 3 but also the torsion spring 3 can be changed. The shape of the contact position of the protrusion 2c. In detail, as shown, the protrusion 2c is formed to have a substantially elliptical shape having a predetermined direction when viewed from above, and the front end 3a side of the torsion spring 3 is formed such that it can be bent by a predetermined angle Thus, regardless of the position of the shutter 2, the urging force of the torsion spring 3 can be efficiently transmitted to the projection 2c.

That is, as shown in FIGS. 7A to 7D, when the shutter 2 is rotated to the closed position (see FIG. 7D) by the open position (see FIG. 7A) through the states shown in FIGS. 7B and 7C, respectively. The contact position and the contact angle between the front end 3a of the torsion spring 3 and the projection 2c are continuously changed, whereby the urging force of the torsion spring 3 can be efficiently transmitted in the rotational direction of the baffle 2. Therefore, the urging force of the torsion spring 3 can be efficiently transmitted to the baffle 2, whereby the actual operation of the baffle 2 can be achieved.

The arm portion 2b is a portion that can contact the arm portion 5b of the button 5 when the shutter 2 is positioned at the closed position; and the back surface of the arm portion 2b (which can be associated with the arm portion 5b of the button 5) The surface of the contact is formed as a tapered portion 2ba. In this manner, since the tapered portion 2ba is formed in the contact portion (contact surface) between the button 5 (arm portion 5b) and the shutter 2 (arm portion 2b), the shutter can be obtained more smoothly. 2 is fixedly combined with the button 5 (operating portion). Here, the tapered portion may also be formed on the arm portion 5b side of the button 5 or on both the arm portion 5b and the arm portion 2b.

As previously mentioned, the button 5 not only fixes the shutter 2 positioned at the open position, but also includes an operating portion 5a disposed and projected by the housing 1. That is, the button 5 can release the fixed state of the shutter 2 generated by the operation portion 5a by the pressurization operation. The button 5 is made of an integrally molded resin member and includes the operating portion 5a and the arm portion 5b. Thus, when the shutter 2 is positioned in the open position, the button 5 is pushed up by the urging force of the coil spring S2, and the arm portion 5b is fixed to the arm portion 2b of the shutter 2, thereby limiting The button 5 is rotated in the pushing direction of the torsion spring 3 (in the direction of the closed position of the shutter 2).

On the other hand, when the button 5 is pressed against the urging force of the coil spring S2, the arm portion 5b also moves downward with the pressing operation of the button 5. This releases the fixed state of the baffle 2 to the arm portion 2b, whereby the baffle 2 is automatically rotated to the closed position by the urging force of the torsion spring 3. Therefore, the pressurizing operation on the operating portion 5a of the button 5 requires only a stroke amount which can release the fixed state of the shutter 2, so that the pressurizing operation can be simplified. Further, in order to operate the button 5, only a thrust corresponding to the coil spring S2 is required, and therefore, the pressurizing operation can be performed with a small force of one finger, whereby the operability of the protecting device can be improved.

When the shutter 2 reaches the closed position in the aforementioned manner, as described above, the magnet M is fitted with the locking mechanism 4, thereby locking the shutter 2. Further, when the magnetic key MK is used to release the locked state of the shutter 2 locked by the lock mechanism 4, when the lock mechanism 4 is rotated, the shutter 2 also rotates against the urging force of the torsion spring 3. Since the cam portion generated when the tapered portion 2ba of the arm portion 2b contacts the arm portion 5b, the arm portion 2b of the shutter 2 can be smoothly fixed to the arm portion 2b of the button 5, whereby The baffle 2 is held in the open position.

Further, according to this embodiment, the edge portion 2d (lower surface side) of the shutter 2 is formed in a rounded shape. The edge portion 2d is when the shutter 2 is moved to the closed position with a key (a start key) inserted into the keyhole Sa of the cylinder lock S, as shown in FIGS. 5 and 6. The portion of the baffle 2 that is in contact with the key. With this structure, even when the button 5 (operating mechanism) is operated erroneously, When the key is inserted into the keyhole Sa of the cylinder lock S, and the shutter 2 is thus moved to the closed position and the key is held in the shutter 2, the key can be easily taken out. .

Further, as shown in Fig. 2, the button 5 includes an extending portion 5c extending downward. When the extended portion 5c is pressurized, the extended portion 5c can also be moved downward. Below the extended portion 5c, a micro switch 6 is provided. When the button 5 is pressurized and the extension portion 5c is moved downward, the front end of the extended portion 5c is pressed against the operating portion 6a of the microswitch 6, whereby the microswitch 6 can be activated. With this configuration, for example, an illumination mechanism respectively provided on a two-wheeled vehicle can be activated, whereby the keyhole Sa can be illuminated.

According to the foregoing embodiment, since the button 5 (operating mechanism) capable of releasing the fixed state of the shutter 2 by pressurizing the operating portion 5a is provided, and since the shutter 2 and the locking mechanism 4 are also integrally formed, Therefore, when compared with a device in which the baffle 2 and the locking mechanism 4 are respectively formed, the structure of the present invention can be simplified and the manufacturing cost of the device can be reduced while maintaining the operability of the cylinder lock protection device. size.

Further, since the pushing mechanism for pushing the shutter 2 from the open position to the closed position is constituted by the torsion spring 3 provided on the shaft L different from the rotating shaft of the shutter 2, when one is When the torsion spring is disposed on the rotating shaft of the baffle 2 (ie, the magnetic lock protruding portion 1ab), not only the thickness of the device can be reduced, but also when the baffle 2 is still assembled. The spring 3 is twisted, whereby the maintenance convenience of the device can be increased.

Although the cylinder lock protection device of this embodiment has been described herein, the present invention is not limited thereto, and for example, in addition to the button 5, it is also possible to use Only the baffle at the open position can be fixed and include an additional operating mechanism (eg, a sliding or a rotary operating mechanism) disposed on the housing and protruding from the operating portion, whereby the baffle The fixed state can be released by operating the operation part.

Further, although a magnetic lock for fixing the magnet M to the lock mechanism 4 is used as the lock mechanism in the embodiment, other types of lock mechanisms may be used. Further, in addition to the torsion spring, other types of pushing mechanisms that push the shutter from the open position to the closed position may be used.

[Industrial Applicability]

The present invention is applicable to a cylinder lock protection device including a baffle, and the baffle is rotatable within a casing and thus movable between a closed position and an open position to open and close a keyhole, and In the cylinder lock protection device, the baffle is integrally formed as a single member with a locking mechanism for locking the baffle. Further, the present invention can be similarly applied to a device having a different shape from the foregoing device or a device having an additional function attached thereto as long as it has the aforementioned structure.

1‧‧‧shell

1a‧‧‧Box Department

1aa‧‧‧ insertion hole

1ab‧‧‧protruding part; shaft

1ac‧‧‧ accommodating hole

1b‧‧‧ Cover

1ba, 1bb, 1bc‧‧ hole

2‧‧‧Baffle

2a‧‧‧Closed section

2b‧‧‧arms

2ba‧‧‧Conical part

2c‧‧‧ Protrusion

2d‧‧‧Edge part

3‧‧‧ Torsion spring

3a‧‧‧ front end

3b‧‧‧ base

4‧‧‧Locking mechanism

4a‧‧‧round part; fitting part

4b‧‧‧Chimeric part

4c‧‧‧ fitting holes

5‧‧‧ button

5a‧‧‧Operation section

5b‧‧‧arm

5c‧‧‧Extended part

6‧‧‧Micro Switch

6a‧‧‧Operation section

a‧‧‧O ring

L‧‧‧ axis

M‧‧‧ magnet

MK‧‧ magnetic key

S‧‧‧ cylinder lock

Sa‧‧‧ keyhole

S1‧‧ spring

S2‧‧‧Coil Spring

Figure 1 is a top plan view of a cylinder lock protection device in accordance with an embodiment of the present invention.

Fig. 2 is a longitudinal sectional view of the cylinder lock protection device (taken along line II-II shown in Fig. 1).

Figure 3 is a top plan view of the aforementioned cylinder lock protection device showing a state in which a cover is removed therefrom.

Figure 4 is a perspective view of the baffle and locking mechanism and a button formed integrally in the above-described cylinder lock protection device.

Figure 5 is a perspective view of the integrally formed baffle and locking mechanism and a button used in the above-described cylinder lock protector, showing the state when they are viewed from another angle.

Figure 6 is a top plan view and a rear view of the baffle and locking mechanism formed integrally in the cylinder lock protection device.

7A to 7D are views for explaining a state in which the torsion springs respectively provided when the shutter is rotated in the above-described cylinder lock protector.

1a‧‧‧Box Department

2‧‧‧Baffle

2b‧‧‧arms

2c‧‧‧ Protrusion

3‧‧‧ Torsion spring

3a‧‧‧ front end

3b‧‧‧ base

4‧‧‧Locking mechanism

4b‧‧‧Chimeric part

4c‧‧‧ fitting holes

5‧‧‧ button

5b‧‧‧arm

L‧‧‧ axis

Claims (5)

A cylinder lock protection device for protecting a cylinder lock, and the device comprises: a casing disposed on an upper side of a key hole formed in the cylinder lock; a baffle in the casing Rotating and moving between a closed position and an open position to open and close the keyhole; a pushing mechanism for pushing the shutter from the open position to the closed position; and a locking mechanism for locking in the closed position a baffle at the position; an opening mechanism for releasing the locked state of the baffle locked by the locking mechanism to move the baffle from the closed position to the open position; and an operating mechanism for fixing the opening a baffle at the position, wherein the operating mechanism includes an operating portion protruding from the housing, and the fixed state of the baffle is released by operating the operating portion, wherein the baffle is integrally formed with the locking mechanism It becomes a single member, and wherein the urging mechanism includes a torsion spring disposed on a shaft different from the shaft of the baffle. The cylinder lock protection device of claim 1, wherein the baffle includes a rounded edge portion, wherein the baffle moves to the closed position when a key is inserted into the key hole of the cylinder lock The rounded edge portion can be in contact with the key. The cylinder lock protection device of claim 1, wherein the baffle includes a protrusion that is in contact with the torsion spring and can receive a pushing force of the torsion spring, and wherein the protrusion and the torsion spring are respectively formed to have The shape of the urging force applied to the protrusion by the torsion spring and the contact position between the protrusion and the torsion spring can be changed according to the rotation angle of the baffle. The cylinder lock protection device of claim 2, wherein the baffle includes a protrusion that is in contact with the torsion spring and can receive a pushing force of the torsion spring, and wherein the protrusion and the torsion spring are respectively formed to have The shape of the urging force applied to the protrusion by the torsion spring and the contact position between the protrusion and the torsion spring can be changed according to the rotation angle of the baffle. A cylinder lock protector according to any one of claims 1 to 4, wherein a contact portion between the operating portion and the shutter includes a tapered portion.