TWI391274B - Cylinder lock protect apparatus - Google Patents

Description

Cylinder lock protection device (2)

The present invention claims priority to Japanese Patent Application No. 2008-073535, filed on March 21, 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 technique

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 shutter that slides between a closed position for closing a keyhole and an open position for opening the keyhole, an operable button disposed in the shutter, and A magnetic lock that can be locked and thus closes the keyhole by holding the baffle in the closed position.

In the foregoing protection device, the operation button is formed to protrude upward, and by pressing the operation button, the shutter can be operated from the open position to the closed position; and the operation button is disposed at the same position as the shutter The sliding direction is perpendicular to one end surface of the baffle. The magnetic lock is disposed on a side surface side of the baffle in a sliding direction of the baffle, and the magnetic lock can be fixedly located The baffle in the closed position is locked.

[Patent Document 1] JP-A-11-044132

However, in the conventional cylinder lock protection device described above, there are the following problems. That is, since the operation button is disposed on the end surface of the shutter perpendicular to the sliding direction of the shutter, and also because the magnetic lock is disposed on the side surface side of the shutter in the sliding direction of the shutter, Therefore, the overall size of the device becomes large. Recently, the demand for not only the sliding range of the baffle but also the overall size of the protective device has been increased.

Summary of invention

One or more embodiments of the present invention provide a cylinder lock protection device that not only obtains the sliding range of the baffle but also reduces the overall size of the protection device.

According to one or more embodiments of the present invention, a cylinder lock protection device includes: a casing 1 disposed on an upper side of a key hole a formed in a cylinder lock; and an insertion hole 1aa, 1ba, Formed substantially in the center of the housing 1 for inserting a starter key into the keyhole a; a shutter 2 is slidable substantially linearly within the housing 1 and can be used to close the a closing position of the insertion holes 1aa, 1ba and an opening position for opening the insertion holes 1aa, 1ba to open and close the key hole a; a pushing device S1 for the baffle 2 to be closed by the closing position Pushing to the open position; an operating button 3 is protruded from the baffle 2, and is used to oppose the pushing force of the pushing device S1, and the baffle 2 is operated from the open position to the closed position; a locking mechanism 6 For locking the baffle 2 in the closed position; and the opening device MK can release the locked state of the baffle generated by the locking mechanism 6. The operation button 3 is disposed on one side of the shutter 2 in the sliding direction of the shutter 2, and the locking mechanism 6 is disposed on the other side of the shutter 2.

According to the foregoing cylinder lock protection device, there is not only an operation knob provided on one side of the shutter in the vertical direction of the shutter, but also a locking mechanism positioned on the other side of the shutter. With this configuration, the operating button and the locking mechanism are disposed with the baffle therebetween, so that not only the sliding range of the baffle can be obtained, but also the overall size of the protective device can be reduced.

Further, the locking mechanism 6 may include a fixing device 4 for fixing the shutter 2 at the closed position, and a locking device 5 for releasing the fixed state of the shutter generated by the fixing device.

When the locking mechanism includes a fixing device for fixing the baffle at the closed position, and a locking device for releasing the fixed state of the baffle generated by the fixing device, the fixing device fixes the baffle The force required and the force required by the locking device to release the fixed state of the baffle can be set separately such that these forces can be set according to their respective optimum forces.

Further, the casing 1 may include a recess 7 formed on a surface of the casing 1, and the operating knob 3 may protrude in the recess 7 to be operable.

When the housing includes a recess formed on a surface of the housing, and the operating button is formed to protrude in the recess 7 to be operable, the protrusion of the operating button can be controlled, which prevents the operating button from being A vehicle driver interferes with other constituent elements of a vehicle.

In addition, the baffle 2 may include a notch portion 2c having a shape corresponding to the insertion hole, and the notch portion 2c may be located at the baffle 2 Align with the insertion hole at the position.

When the baffle includes a notch portion having a shape corresponding to the insertion hole, and the notch portion is aligned with the insertion hole when the baffle is at the open position, the overall protection device can be further reduced size.

Other aspects and advantages of the 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.

Figure 2 is a front view of the cylinder lock protector.

Figure 3 is a representative view of the cylinder lock protection device (showing a state in which the shutter is in a closed position and fixed by the fixing device), and is a top plan view of the cylinder lock protection device, showing a cover portion The state of being removed by it.

Figure 4 is a representative view of the cylinder lock protection device (showing a state in which a baffle is in a closed position and the fixed state of the baffle provided by the fixing device is released), and is the cylinder lock A top plan view of the protective device showing the state in which the cover is removed.

Figure 5 is a representative view of the cylinder lock protector (showing a state in which the baffle is in an open position) and is a top plan view of the cylinder lock protector showing that the cover is removed therefrom status.

Fig. 6 is a cross-sectional view taken along line VI-VI of Fig. 1 (the right half section of Fig. 6 is a front view).

Detailed description of the embodiment

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

One of the cylinder lock protection devices of this embodiment is disposed on an upper side of a keyhole of a cylinder lock disposed in a two-wheeled vehicle. According to the cylinder lock protection device, the keyhole can be opened and closed from the outside, thereby protecting The cylinder lock. As shown in the first to sixth figures, the cylinder lock protection device mainly comprises a casing 1 having a box portion 1a and a cover portion 1b, a baffle 2, an operating button 3, and a fixing device 4; The locking mechanism 6 of the locking device 5, a coil spring S1 as a pushing device, and a magnetic key MK as an opening device (see Fig. 6).

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 projection 1ab near the hole 1aa (see Fig. 6). A cylinder lock S disposed in a vehicle can be inserted into the insertion hole 1aa, and the insertion hole 1aa can also face the keyhole "a" of the cylinder lock 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 S3; and the magnetic lock projection portion The 1ab is also constructed such that the circular portion 5a of the locking device 5 can rotatably fit the outer peripheral surface of the magnetic lock projection portion 1ab. Here, in Fig. 6, reference numeral b denotes an O-ring for sealing between the circular portion 5a of the locking device 5 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 portion corresponding to being inserted for a start key (not shown) a hole 1ba at the position of the insertion hole 1aa in the keyhole "a", a hole 1bb into which the fitting portion 5a of the locking device 5 can be inserted, and the operation knob 3 are disposed thereon in a protruding manner. a recess 7.

As shown in FIGS. 3 to 5, the baffle 2 can slide substantially linearly in the right and left directions of the housing 1 in the figures, and in detail, can be used to close the hole 1ba. The closed position (one position shown in FIG. 3) is moved between an open position (one position shown in FIG. 5) for opening the hole 1ba, whereby the keyhole "a" can be opened and closed. ". As for the structure of the baffle 2, not only the operation knob 3 but also one side surface 2a (the lower surface in FIGS. 3 to 5) of the baffle 2 extending in the sliding direction of the baffle 2 is integrally formed, and A fixing recess 2ba fixed by the fixing means 4 is formed on the other side surface 2b (an upper surface in Figs. 3 to 5) on the side opposite to the one side surface 2a. Further, on the right end side of the shutter 2 in Figs. 3 to 5, a coil spring S1 (pushing means) for pushing the shutter 2 from the closed position to the open position is provided.

The operation button 3 is disposed on one side surface of the baffle 2 and protrudes and can operate the baffle 2 from the open position to the closed position against the urging force of the coil spring S1 (pushing device); and, as described As shown in Fig. 1, the operation knob 3 is disposed in a recess 7 formed in the surface of the casing 1 and protrudes, and can be operated in the recess 7. Therefore, since the operating button 3 is formed in a protruding manner and can be operated in the recess 7 (in other words, the operating range of the operating button 3 is limited to the recess 7), as shown in FIG. 2, the operating button 3 can be prevented. The surface of the casing 1 is protruded, whereby the operation knob 3 can be prevented from interfering with driving of a vehicle and other constituent elements of a vehicle. According to this embodiment, since the operation button 3 is made to protrude The starting manner is formed and operable in the recess 7, and the operating button 3 can be prevented from protruding laterally from the housing 1, and the operating button 3 can be prevented from interfering with vehicle driving and other constituent elements of the vehicle.

The operating button 3 is configured such that when it is held in a state in which it positions the shutter 2 in the closed position (when it is positioned in a position shown by the solid line in FIG. 1), it is close to (or may be in contact with) the wall surface 7a of the recess 7. Therefore, when the shutter 2 is positioned at the closed position, it is difficult to operate the operation knob 3, which prevents the third person from illegally operating the operation button 3 using a tool or the like, whereby the crime prevention effect can be re-enhanced.

A locking mechanism 6 is used to lock the flap 2 held in the closed position to thereby prevent a third person from operating the operating button 3 and thus operating the flap 2 from the closed position to the open position. As previously mentioned, the locking mechanism 6 comprises the fixing device 4 and the locking device 5. These fixing devices 4 and locking devices 5 are respectively disposed on the other side surface 2b side of the baffle 2 (on the upper surface side in FIGS. 3 to 5), and the operation knob 3 and the locking mechanism 6 are disposed in this block. Board 2 is located between the roads.

The fixing device 4 is movable into the fixing recess 2ba of the baffle 2 held at the closed position and fixes the baffle 2, and the fixing device 4 is normally pushed toward the baffle 2 by a coil spring S2 (at the Figures 3 to 5 are downwards). In detail, the fixing device 4 includes a fixing surface 4a and a tapered surface 4b which are respectively formed on the side of the projecting end thereof. When the shutter 2 is positioned in the closed position, as shown in Fig. 3, the fixing surface 4a is fixed to the fixing recess 2ba to prevent the shutter 2 from sliding to the open position. The tapered surface 4b contacts the baffle 2 during sliding of the baffle 2 from the open position to the closed position The tapered surface 2bb is pushed up the fixture 4, thereby allowing the shutter 2 to slide to the closed position.

The locking device 5 is for holding or releasing the fixed state of the shutter 2 produced by the fixing device 4, and the locking device 5 is made of a non-magnetic material. Thus, when the locking device 5 is engaged with the magnetic lock projection portion 1ab, and the locking device 5 is rotated around the magnetic lock projection portion 1ab, a projection portion 5a integrally provided with the locking device 5 is also rotated. Thereby, the fixing device 4 can be moved upward against the urging force of the coil spring S2.

The locking device 5 is formed on a surface side thereof for fitting a magnetic key MK (opening device) therein, and a plurality of fitting holes 5c are respectively formed on the back surface thereof for being disposed on the protruding portion of the magnetic lock Most of the magnets M on the front end of the 1ab are fitted and fixed thereto. When the locking device 5 thus constructed is assembled to the magnetic lock projection 1ab, the fitting holes 5c can be fitted and fixed to the magnet M pushed up above the coil spring S1.

The magnetic key MK is used to release the locked state of the shutter 2 generated by the locking mechanism 6 (in detail, the fixed state caused by the fixing device 4), whereby the shutter 2 can be Move from the closed position to the open position. For example, the magnetic key MK is constituted by a portion integrally formed with a grip portion (a portion made of resin) of a start key used in a one-two-wheeled vehicle. A plurality of magnets m are embedded in the front end of the magnetic key MK. In a state in which the magnetic key MK is fitted into the fitting portion 5b of the locking device 5, the magnets m are disposed at positions respectively corresponding to the magnets M; and the magnets m are arranged to be The polarities of the magnets m having different polarities on the upper surface side of the magnet M face the upper surface side of the magnets M, respectively. polarity.

With this configuration, when the locking device 5 (baffle 2) is locked, when the magnetic key MK is inserted into the embedded portion 5b, due to the magnets M and the magnets disposed in the magnetic key MK The repulsive force generated between m, the magnets M move downward against the urging force of the coil spring S3, thereby releasing the locked state of the locking device 5. In this state, when the magnetic key MK is rotated, the locking device 5 rotates together with the rotation of the magnetic key MK due to its state of being fitted into the embedded portion 5b, and the protruding portion 5a also rotates. Therefore, as shown in Fig. 4, the fixing device 4 can move upward against the urging force of the coil spring S2. Thus, the fixed state generated by the fixing device 4 has been released, and the shutter 2 can be automatically slid to the open position by the closing position due to the urging force of the coil spring S1.

Further, according to this embodiment, as shown in FIGS. 3 to 5, the shutter 2 includes a notch portion 2c having a shape corresponding to the insertion holes 1ba, 1aa; and, as shown in FIG. 5, when the block When the plate 2 is held in the open position, the notch portion 2c is aligned with the insertion holes 1ba, 1aa. Therefore, when compared with a baffle formed as a rectangle, the stroke of the baffle 2 from the closed position to the open position can be reduced, so that the overall size of the cylinder lock protector can be further reduced.

The operation of the aforementioned cylinder lock protector will be explained below.

First, when the shutter 2 is held in the open position, the operator can pinch the operation knob 3 and operate it to thereby slide the shutter 2 against the urging force of the coil spring S1. During this sliding process, since the tapered surface 2bb of the baffle 2 contacts the tapered surface 4b of the fixing device 4, by a cam The fixing device 4 moves upward against the urging force of the coil spring S2, causes the baffle 2 to slide upward again, and by the sliding of the baffle 2, the fixing device 4 moves into the fixing recess 2ba to thereby fix the Baffle 2.

Therefore, the shutter 2 is fixed in the closed position and is locked by the locking mechanism 6, so that a third person can be prevented from illegally opening the keyhole "a". On the other hand, when the shutter 2 is held in the closed position, the operator can insert the magnetic key MK into the fitting portion 5b so that not only the fixed state generated by the magnets M can be released, but also If the magnetic key MK is rotated in this state, the protruding portion 5a also moves the fixing device 4, thereby releasing the fixed state of the shutter 2. Therefore, the shutter 2 is slid to the open position due to the urging force of the coil spring S1.

According to the foregoing embodiment, not only is the operation knob 3 disposed on the one side surface 2a of the shutter 2 extending in the sliding direction thereof but also protrudes, and since the locking mechanism 6 (the fixing device 4 and the locking device 5) is disposed in the block The other side surface 2b of the plate 2, the operating button 3 and the locking mechanism 6 are respectively disposed with the baffle 2 therebetween, whereby the overall size of the cylinder lock protector can be reduced and the sliding range of the baffle 2 can be obtained.

Since the locking mechanism 6 includes a fixing device 4 that can be fixed to the shutter 2 held at the closed position, and a locking device 5 for releasing the fixed state of the shutter 2 generated by the fixing device 4, the locking device 5 The force required for the fixing device 4 to fix the baffle 2 (the driving force of the coil spring S2) and the force required for the locking device 5 to release the fixed state of the baffle 2 (the pressing force of the O-ring b) may be respectively Set so that these forces can be set according to their appropriate values.

Although the cylinder lock protection device of this embodiment has been described herein, The present invention is not limited thereto, and for example, the recess is not necessarily formed in the casing and the operation knob may be formed such that it can slide on the surface of the casing. In the embodiment, a magnetic lock for fixing the magnets M is used as the locking device 5; however, other types of locking devices may be used instead.

<Industrial Applicability>

The present invention can be effectively applied not only to the above-described type of cylinder lock protection device but also to other types of cylinder lock protection devices having a different shape from the above-described device or having other functions attached thereto, as long as the operation button is disposed at One side surface of the baffle extending in the sliding direction thereof is protruded, and a locking mechanism is set on the other side surface side of the baffle.

1‧‧‧shell

1a‧‧‧Box Department

1aa‧‧‧ insertion hole

1ab‧‧‧Magnetic lock projection

1ac‧‧‧ accommodating hole

1b‧‧‧ Cover

2‧‧‧Baffle

2a, 2b‧‧‧ side surface

2ba‧‧‧fixed recess

2bb‧‧‧Conical surface

2c‧‧‧ notched part

3‧‧‧ operation button

4‧‧‧Fixed devices

4a‧‧‧Fixed surface

4b‧‧‧Conical surface

5‧‧‧Locking device

5a‧‧‧round part; fitting part; protruding part

5b‧‧‧Chimeric part

5c‧‧‧ fitting holes

6‧‧‧Locking mechanism

7‧‧‧ recess

7a‧‧‧ wall

A‧‧‧ keyhole

b‧‧‧O ring

MK‧‧ magnetic key

M, m‧‧‧ magnet

S‧‧‧ cylinder lock

S1, S2, S3‧‧‧ spiral spring

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

Figure 2 is a front view of the cylinder lock protector.

Figure 3 is a representative view of the cylinder lock protection device (showing a state in which the shutter is in a closed position and fixed by the fixing device), and is a top plan view of the cylinder lock protection device, showing a cover portion The state of being removed by it.

Figure 4 is a representative view of the cylinder lock protection device (showing a state in which a baffle is in a closed position and the fixed state of the baffle provided by the fixing device is released), and is the cylinder lock A top plan view of the protective device showing the state in which the cover is removed.

Figure 5 is a representative view of the cylinder lock protection device (showing a state in which the baffle is in an open position), and is a view of the cylinder lock protection device A plan view showing the state in which the cover is removed.

Fig. 6 is a cross-sectional view taken along line VI-VI of Fig. 1 (the right half section of Fig. 6 is a front view).

1aa‧‧‧ insertion hole

2‧‧‧Baffle

2a, 2b‧‧‧ side surface

2ba‧‧‧fixed recess

2bb‧‧‧Conical surface

2c‧‧‧ notched part

3‧‧‧ operation button

4‧‧‧Fixed devices

4a‧‧‧Fixed surface

4b‧‧‧Conical surface

5‧‧‧Locking device

5a‧‧‧protruding part

5b‧‧‧Chimeric part

5c‧‧‧ fitting holes

6‧‧‧Locking mechanism

A‧‧‧ keyhole

S1, S2‧‧‧ coil spring

Claims (3)

A cylinder lock protection device comprises: a casing disposed on an upper side of a key hole formed in a cylinder lock; an insertion hole substantially formed in a center of the casing for enabling a start a key can be inserted into the keyhole; a recess is formed on a surface of the housing; a shutter is slidable substantially linearly within the housing and can be closed in a closed position for closing the insertion hole a movement between the open positions for opening the insertion hole to open and close the key hole; a pushing device for pushing the shutter from the closed position to the open position; an operating button is disposed in the recess Operated by the baffle protrusion and configured to operate the baffle from the open position to the closed position against the urging force of the pushing device; a locking mechanism for locking the baffle in the closed position And an opening device for releasing a locked state of the baffle generated by the locking mechanism, wherein the operating button is disposed on a side of the baffle in a sliding direction of the baffle, wherein the locking mechanism is disposed at the Baffle On one side, and wherein when the operation knob is maintained at the Department of the operation knob to set the shutter in the closed state of the position, the operation knob configured based approach or contact a wall surface of the recess. The cylinder lock protection device of claim 1, wherein the locking mechanism comprises a fixing device for fixing the baffle in the closed position, and a fixing device for releasing the baffle generated by the fixing device. State locking device. The cylinder lock protection device of claim 1 or 2, wherein the baffle includes a notch portion having a shape corresponding to the insertion hole, and the notch portion is when the baffle is in the open position Align with the insertion hole.