JP2017206812A - Cylinder lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cylinder lock device that enhances assembly work efficiency.SOLUTION: A cylinder lock device 1 includes a rotor 30 housed and held rotatably in a cylindrical body 2, a sleeve 5 housed and held rotatably between the body 2 and the rotor 30, a slide member 6 that moves when the rotor 30 and the sleeve 5 are rotated integrally with regard to the body 2, and an engaging protrusion 37 formed on an outer peripheral surface of the rotor 30, the engaging protrusion engaging with a clutch member 8 transmitting rotation of the rotor 30. The cylinder lock device further includes a ring-form plate 7 engaged and held on the slide member 6 when inserted into the engaging protrusion 37 and rotated, the ring-form plate blocking pull-out of the rotor 30 when the rotor is pulled out from a front side of the body 2, by bringing the engaging protrusion 37 in contact therewith.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cylinder lock device that is locked and unlocked by rotating a mechanical key.

  As an example of a conventional cylinder lock device, a pin tumbler lock is proposed in which rotation of an inner cylinder and an outer cylinder is regulated by a pin tumbler (see, for example, Patent Document 1).

  The pin tumbler lock described in Patent Document 1 includes a lock main body in which an inner cylinder and an outer cylinder are assembled, and a connecting cam fixed with screws at the inner end of the inner cylinder. The lock body to which the connecting cam is fastened with screws is inserted into the case body in the axial direction from the front side, and a retaining pin that prevents the lock body from falling off is perpendicular to the outer periphery of the case body. It is assembled and engaged with the connecting cam.

JP 10-88874 A

  The pin tumbler lock described in Patent Document 1 has a structure in which a retaining pin is inserted from a direction perpendicular to the inserting direction of the lock main body in order to prevent the lock main body from falling off. Because of this structure, the lock body and the retaining pin are assembled into the case body from two different directions, so that there is a problem that assembly of the pin tumbler lock takes time and man-hours and the work efficiency is poor.

  Accordingly, an object of the present invention is to provide a cylinder lock device capable of improving the work efficiency of assembly.

  In order to achieve the above object, the cylinder locking device provided by the present invention accommodates a tumbler that is urged in a radial direction across the key insertion hole, and rotates in a cylindrical body that opens back and forth. A rotor that can be accommodated and held, a sleeve that is rotatably accommodated and held between the body and the rotor, and that releases the engagement with the tumbler by inserting a regular key into the key insertion hole, and A slide member that is disposed between the body and the sleeve and moves to the rear side of the body when the rotor and the sleeve are rotated together with the body; and a clutch member that transmits the rotation of the rotor. A mating engagement protrusion is formed on the outer peripheral surface of the rotor, and is engaged with and held by the slide member by a rotation operation after being inserted through the engagement protrusion. Wherein the engagement projection is provided with a ring-shaped plate to prevent withdrawal contacts when they are withdrawn from the front side of the di.

  In the cylinder lock device according to the present invention, the ring-shaped plate has an insertion hole to be inserted into the outer peripheral surface of the rotor, and the engagement protrusion of the rotor is provided on the circumference of the inner diameter surface of the insertion hole. An insertion hole that is inserted through the engagement projection and a fitting hole that is fitted into the fitting projection formed at the distal end in the moving direction of the slide member by a rotation operation after being inserted into the engagement projection. It is preferable to become.

  Furthermore, in the cylinder lock device according to the present invention, the ring-shaped plate has a configuration in which the engagement between the rotor and the clutch member is released by being sandwiched and moved between the slide member and the clutch member. It is preferable that

  Furthermore, in the cylinder lock device according to the present invention, it is preferable that the clutch member has an engagement recess that is movable and non-rotatably engaged with the engagement protrusion of the rotor.

  ADVANTAGE OF THE INVENTION According to this invention, the assembly property of a cylinder lock apparatus can be improved.

It is a perspective view which shows typically the disassembled state before assembling the cylinder lock apparatus which concerns on suitable embodiment for this invention. It is a perspective view which shows typically the external appearance after assembling a cylinder lock apparatus. It is a principal part cross-sectional enlarged view of the III-III line arrow of FIG. It is explanatory drawing (a)-(e) for demonstrating an example of the assembly procedure of a cylinder lock apparatus. It is the top view (a) seen from the Va arrow direction of FIG.4 (c), and the top view (b) seen from the Vb arrow direction of FIG.4 (d).

  Preferred embodiments of the present invention will be specifically described below with reference to the accompanying drawings. In the following description, the key insertion hole side of the cylinder lock device is referred to as a front portion, the rear side of the key insertion hole is referred to as a rear portion, and the key insertion hole is referred to as up, down, left, and right when viewed from the front.

(Overall configuration of cylinder lock device)
1 and 2, reference numeral 1 indicating the whole exemplifies a configuration example of a typical cylinder lock device in the present embodiment. The cylinder lock device 1 includes a body 2 that is assembled to a trunk lid of a vehicle body (not shown).

  The body 2 includes a cylindrical portion 20 for housing the internal components of the cylinder lock device 1 and a mounting flange portion 21 that is integrally formed near the front opening of the cylindrical portion 20. As a constituent material of the body 2, for example, a cylindrical metal material that opens in the front-rear direction, such as zinc die casting, is used.

  In the cylindrical portion 20 of the body 2, a regular mechanical key (not shown) (hereinafter referred to as a regular key) and a rotor unit 3 capable of mechanical authentication are inserted and held through the front opening. On the other hand, a freewheel mechanism 4 having a clutch function for switching the rotor unit 3 and a lock mechanism (not shown) between a connected state and a disconnected state is inserted and received and held from the rear opening on the opposite side of the front opening of the body 2. The The lock mechanism includes lock parts such as a coil spring and a lever.

  As shown in FIGS. 1 and 3, the rotor unit 3 includes a columnar rotor 30 that is rotatably accommodated in the cylindrical portion 20 of the body 2. The rotor 30 has a stepped shape in which a large-diameter rotor portion 33 and a small-diameter rotor portion 34 are integrally connected via a stepped portion 35. An annular front partition wall 22 bulges on the inner peripheral surface of the front portion of the body 2, and a stepped portion 35 of the rotor 30 is brought into contact with the front surface of the front partition wall 22. It is prevented from coming out from the opening side.

  Inside the large-diameter rotor portion 33 and the small-diameter rotor portion 34, a key insertion hole 32 for inserting a regular key is formed along the rotation axis CL direction. Inside the small-diameter rotor portion 34, a plurality of long tumblers 31,..., 31 that are urged in the radial direction across the key insertion hole 32 are accommodated so as to be able to advance and retract in the radial direction by the elasticity of a coil spring (not shown). Has been. By inserting the regular key into the key insertion hole 32, the tumbler 31 is immersed in the small diameter rotor portion 34, and the rotor unit 3 can be rotated into the cylindrical portion 20 of the body 2.

  A small diameter portion 36 having a diameter smaller than that of the small diameter rotor portion 34 is integrally connected to the rear end portion of the small diameter rotor portion 34. The ring-shaped plate 7 is movably fitted to the small diameter portion 36. A part of the small-diameter portion 36 is formed with an annular step portion toward the radial center. On the step portion of the small diameter portion 36, a pair of stepped engagement protrusions 37, 37 for switching the connection state with the freewheel mechanism 4 to the connection release state are formed to protrude in both radial directions. A cylindrical clutch member 8 is movably fitted to the engaging projection 37.

  A cylindrical sleeve 5 is rotatably accommodated in a space formed between the inner peripheral surface of the cylindrical portion 20 of the body 2 and the outer peripheral surface of the small diameter rotor portion 34. The front opening end surface of the sleeve 5 abuts against the rear surface of the front partition wall 22 of the body 2, thereby preventing the sleeve 5 from being pulled out from the front opening of the body 2.

  On the inner peripheral surface of the sleeve 5, tumbler engaging portions 50 that are long in the direction of the rotation axis CL are formed on both sides in the radial direction. The tumbler engaging portion 50 forms a hole for releasing the protruding end portion of the tumbler 31 by inserting a regular key, and the engagement with the tumbler 31 is maintained by inserting the regular key into the key insertion hole 32. In addition, the engagement state with the tumbler 31 is maintained by extracting the regular key.

  A pair of T-shaped sliding grooves 51, 51 extending in the rotational axis CL direction and the circumferential direction are formed on both sides in the radial direction on the outer peripheral surface of the sleeve 5. A pair of slide members (slide bars) 6 and 6 are slidably fitted.

  A cam surface (not shown) is formed on the facing surface where the slide member 6 and the slide groove 51 face each other, and the sleeve 5 rotates relative to the body 2 so that the slide member 6 is a cylinder of the body 2. It moves toward the lock mechanism along a space formed between the inner peripheral surface of the portion 20 and the sliding groove 51 of the sleeve 5.

(Configuration of rotor pull-out prevention structure)
In the present embodiment, a rotor pull-out prevention structure that is a characteristic portion is provided. As shown in FIGS. 1 and 3, a circular insertion hole 70 that is inserted into the small-diameter rotor portion 34 of the rotor 30 is formed in the center portion of the ring-shaped plate 7. A fitting projection 60 projects from the rear end surface, which is the front end of the slide member 6 in the moving direction, and the small diameter portion 36 of the rotor 30 is engaged on the circumference of the inner diameter surface of the insertion hole 70. An insertion hole 71 inserted into the protrusion 37 and an attachment hole 72 fitted into the fitting protrusion 60 of the slide member 6 communicate with each other and are formed on both radial sides.

  This ring-shaped plate 7 has an insertion protrusion 70 inserted into the small-diameter rotor portion 34 of the rotor 30 from the rear opening of the body 2 and engaged with the clutch member 8 that transmits the rotation of the rotor 30 to the lock mechanism. The fitting hole 72 is engaged and held by the fitting protrusion 60 of the slide member 6 by a rotation operation after the insertion hole 71 is inserted into the insertion member 37. The ring-shaped plate 7 is joined to the rear end surface of the slide member 6 in a state where the fitting hole 72 is fitted to the fitting projection 60, and the fitting hole 72 and the fitting projection 60 are ring-shaped. The plate 7 is configured as a retaining portion that prevents the plate 7 from being detached from the slide member 6.

  The ring-shaped plate 7 configured as described above is configured as a stopper member for preventing the rotor from being pulled out. The ring-shaped plate 7 joined to the rear opening end surface of the sleeve 5 has the rotor 30 attached to the body 2. The engagement protrusion 37 of the rotor 30 is disposed so as to come into contact with the rotor 30 when being pulled out from the front opening side.

  This arrangement is combined with a configuration in which the front opening end surface of the sleeve 5 abuts against the rear surface of the front partition 22 of the body 2 and prevents the sleeve 5 from being pulled out from the front opening of the body 2. The rotor plate 30 prevents the rotor 30 from being pulled out from the front opening side of the body 2 when the ring-shaped plate 7 and the engagement protrusion 37 of the rotor 30 are in contact with each other. Can do.

(Configuration of freewheel mechanism)
As shown in FIGS. 1 and 3, the freewheel mechanism 4 includes a cylindrical sleeve 5 that is rotatably accommodated between an inner peripheral surface of the cylindrical portion 20 of the body 2 and an outer peripheral surface of the small-diameter rotor portion 34. A pair of T-shaped slide members 6 and 6 that are movable along the rotation axis CL direction on the outer peripheral surface of the sleeve 5 and a ring shape for preventing rotor pull-out that is movable on the outer peripheral surface of the small-diameter rotor portion 34 of the rotor 30. The plate 7 and the cylindrical clutch member 8 that is movable on the outer peripheral surface of the small-diameter portion 36 of the rotor 30 are configured.

  On the circumference of the inner diameter surface of the front opening in the clutch member 8, detachable recesses 80, 80 that can be engaged with and disengaged from the engagement protrusion 37 of the rotor 30 are formed on both sides in the radial direction. The detachable recess 80 has a staircase shape having a step that is stepped down by a required height from the inner diameter surface of the insertion hole 81 that can be inserted into the small diameter portion 36 of the rotor 30.

  The clutch member 8 is urged toward the front opening of the rotor 30 by a coil spring (not shown) having a function of urging toward the side opposite to the lock mechanism and a function of urging in the rotational direction. As a result, the attachment / detachment recess 80 of the clutch member 8 is brought into pressure contact with the engagement protrusion 37 of the rotor 30 and is fitted and attached.

  An annular rear partition wall 23 having a larger inner diameter than the front partition wall 22 is formed on the rear inner peripheral surface of the body 2, and a flange portion 82 formed on the outer peripheral surface of the clutch member 8 by the elasticity of the coil spring is provided. By contacting the rear surface of the rear partition wall 23, the clutch member 8 is prevented from coming out of the front opening side of the body 2.

  In the locked state where the regular key is not inserted into the key insertion hole 32 of the rotor 30, an unauthorized key other than the regular key or a foreign object such as a driver is inserted into the key insertion hole 32 of the rotor 30 to unlock the cylinder lock. When the illegal act is performed, the protruding end portion of the tumbler 31 is engaged with the tumbler engaging portion 50 of the sleeve 5 to restrict the rotation of the rotor 30.

  When the rotor 30 is forcibly rotated, the sleeve 5 is rotated with respect to the body 2 so that the slide member 6 is directed toward the lock mechanism along the sliding groove 51 of the sleeve 5 against the elasticity of the coil spring. While moving, the ring-shaped plate 7 is sandwiched between the slide member 6 and the clutch member 8 and moved.

  In addition to the function as a stopper member for preventing the rotor from being pulled out, the ring-shaped plate 7 is sandwiched and moved between the slide member 6 and the clutch member 8 to engage the rotor unit 3 and the clutch member 8. It can have a function to cancel. With this configuration, it is possible to release the fitted state between the detachable recess 80 of the clutch member 8 and the engagement protrusion 37 of the rotor 30, and prohibit the integral rotation of the rotor unit 3 and the clutch member 8. Is possible.

  By the free wheel mechanism 4 configured as described above, the rotor 30 and the sleeve 5 are merely idled with respect to the body 2, and the rotation of the rotor 30 is not transmitted to the clutch member 8, and the lock mechanism does not operate. A clutch function having a connection release function for releasing the engagement between the rotor 30 and the clutch member 8 and causing the rotor 30 to idle with respect to the lock mechanism can be achieved with a simple configuration.

  On the other hand, when the regular key is inserted into the key insertion hole 32 of the rotor 30, all the tumblers 31 are retracted inward from the tumbler engaging portion 50 of the sleeve 5 by engaging with the key groove of the regular key. . All the tumblers 31 and the sleeves 5 are disengaged, and the rotor 30 can rotate independently of the sleeves 5.

  When the normal key is rotated in this state, the engagement protrusion 37 of the rotor 30 and the detachment recess 80 of the clutch member 8 are maintained in the engaged state, and the sleeve 5, the slide member 6, and the ring Except for the plate-like plate 7, only the clutch member 8 engaged with the rotor 30 rotates integrally. The rotation of the clutch member 8 switches between a locked state and an unlocked state of the lock mechanism.

(Assembly procedure of cylinder lock device)
Here, referring to FIGS. 4 (a) to 4 (e) and FIGS. 5 (a) and 5 (b), the rotor unit 3 and the freewheel mechanism 4 are shown in the body 2. An example of the assembly process is illustrated.

  Hereinafter, an example of the assembly procedure of the cylinder lock device 1 will be described with reference to FIGS. 3, 4 (a) to 4 (e), and FIGS. 5 (a) and 5 (b). In addition, illustration of the body 2 is abbreviate | omitted in Fig.4 (a) thru | or FIG.4 (e).

  In order to assemble the rotor unit 3 and the free wheel mechanism 4 in the cylindrical portion 20 of the body 2, as shown in FIG. 3, first, the rotor unit 3 is moved from the front opening of the body 2 into the cylindrical portion 20 of the body 2. The step portion 35 of the rotor 30 is engaged with the front partition 22 of the body 2.

  Next, as shown in FIGS. 3, 4 (a) and 4 (b), the sleeve 5 is inserted into the cylindrical portion 20 from the rear opening of the body 2, and the front opening end surface of the sleeve 5 is inserted into the body 2. Abut against the front partition 22. Subsequently, the slide member 6 is fitted into the slide groove 51 of the sleeve 5. Note that the sleeve 5 may be inserted into the cylindrical portion 20 from the rear opening of the body 2 after the sliding member 6 is fitted into the sliding groove 51 of the sleeve 5.

  Next, as shown in FIGS. 3, 4 (c) and 5 (a), the insertion hole 70 of the ring-shaped plate 7 is inserted into the small diameter portion 36 of the rotor unit 3 from the rear opening of the body 2, The insertion hole 71 of the ring-shaped plate 7 is inserted into the engagement protrusion 37 of the small diameter portion 36. After the insertion hole 71 of the ring-shaped plate 7 is inserted into the engagement protrusion 37, the insertion hole 70 of the ring-shaped plate 7 is set in the small diameter rotor portion 34 of the rotor unit 3.

  Next, as shown in FIGS. 3, 4 (d) and 5 (b), the rotor unit 3 or the ring-shaped plate 7 is rotated, and the fitting hole 72 of the ring-shaped plate 7 is fitted into the slide member 6. Fit into the protrusion 60. By this operation, the ring-shaped plate 7 is assembled as a stopper member for preventing the rotor from being pulled out.

  Finally, as shown in FIG. 3 and FIG. 4 (e), the attachment / detachment recess 80 of the clutch member 8 is fitted to the engagement protrusion 37 of the rotor unit 3, and the flange portion 82 of the clutch member 8 is attached to the body 2. It abuts on the rear partition wall 23. With the above operation, the assembly operation of the rotor unit 3 and the free wheel mechanism 4 to the body 2 is completed.

(Effect of embodiment)
According to the cylinder lock device 1 configured as described above, the ring-shaped plate 7 for preventing the rotor from being pulled out is assembled in the body 2 along the rotation axis CL in the same direction as the assembly direction of the other internal components. Therefore, in addition to the above effects, the following effects can be obtained.

  The assembly man-hour can be reduced by assembling the ring-shaped plate 7 from the direction of the rotation axis CL.

  Since the hole shape for tightening the ring-shaped plate 7 can be eliminated, the simplification of the shape and the reduction of the processing man-hour can be achieved.

  Since the hole shape for tightening the ring-shaped plate 7 can be eliminated, there is no need for secondary processing, and the manufacturing cost can be reduced.

  Since it has a simple structure, it can be easily assembled and can be automated by an automatic robot.

  With a simple structure for preventing the rotor unit 3 from being pulled out by an unauthorized act, it is possible to prevent an unlocking operation due to an unauthorized destruction operation, and to improve the attack resistance.

  Since the ring-shaped plate 7 for preventing the pulling out of the rotor can be used as a component of the freewheel mechanism 4, it is possible to reduce the arrangement space of the housing components in the body 2 without increasing the manufacturing cost. can do.

  In addition, although the case where it applied to a motor vehicle was demonstrated in the typical structural example of the cylinder lock apparatus 1 in this invention, this invention is not limited to this. As long as the ring-shaped plate 7 for preventing the rotor pull-out can be assembled in the body 2 along the rotation axis CL in the same direction as the assembly direction of the other internal components, various types such as construction machines and agricultural machines can be used. Of course, the present invention can be effectively applied to the working vehicle.

  Moreover, in the said embodiment, although the ring-shaped plate 7 for rotor extraction prevention applied to the cylinder locking device 1 which locks and unlocks the trunk lid of a vehicle by mechanical operation was illustrated, It is not limited. As another example, it is needless to say that the structure for preventing the rotor from being pulled out by the ring-shaped plate 7 can be applied to, for example, a cylinder lock device for an ignition cylinder of a vehicle, a door of a vehicle, a door of a house, and other opening / closing bodies.

  As is clear from the above description, the representative embodiments and the illustrated examples according to the present invention do not limit the invention according to the claims. Therefore, it should be noted that not all the combinations of features described in the above embodiments and the illustrated examples are essential to the means for solving the problems of the invention.

DESCRIPTION OF SYMBOLS 1 ... Cylinder locking device, 2 ... Body, 3 ... Rotor unit, 4 ... Free wheel mechanism, 5 ... Sleeve, 6 ... Slide member, 7 ... Ring-shaped plate, 8 ... Clutch member, 20 ... Cylindrical part, 21, 82 ... Mounting flange portion, 22: front partition, 23 ... rear partition, 30 ... rotor, 31 ... tumbler, 32 ... key insertion hole, 33 ... large diameter rotor portion, 34 ... small diameter rotor portion, 35 ... stepped portion, 36 ... small diameter , 37 ... engagement protrusion, 50 ... tumbler engagement part, 51 ... sliding groove, 60 ... fitting protrusion, 70, 81 ... insertion hole, 71 ... insertion hole, 72 ... fitting hole, 80 ... desorption Recess, CL ... Rotation axis

Claims (4)

A rotor that is housed in a tumbler that is urged in a radial direction across the key insertion hole and that is rotatably housed in a cylindrical body that opens back and forth; and
A sleeve that is rotatably housed and held between the body and the rotor, and releases the engagement with the tumbler by inserting a regular key into the key insertion hole;
A slide member that is disposed between the body and the sleeve and moves to the rear side of the body when the rotor and the sleeve are rotated integrally with the body;
An engagement protrusion that engages with a clutch member that transmits the rotation of the rotor is formed on the outer peripheral surface of the rotor, and is engaged with and held by the slide member by a rotation operation after being inserted into the engagement protrusion. And a ring-shaped plate that prevents the pulling out when the engaging projection abuts when the rotor is pulled out from the front side of the body;
A cylinder locking device comprising: The ring-shaped plate has an insertion hole to be inserted into the outer peripheral surface of the rotor,
On the circumference of the inner diameter surface of the insertion hole, an insertion hole that is inserted into the engagement protrusion of the rotor, and a rotation operation after the insertion of the engagement protrusion is formed at the distal end in the moving direction of the slide member. The cylinder lock device according to claim 1, wherein the fitting hole is formed so as to communicate with a fitting hole to be fitted into the fitting protrusion.   The said ring-shaped plate is comprised between the said slide member and the said clutch member, and has the structure which cancels | releases engagement with the said rotor and the said clutch member by moving. Cylinder lock device.   4. The cylinder lock device according to claim 1, wherein the clutch member includes an engaging recess that is movable and non-rotatably engaged with the engaging protrusion of the rotor. 5.

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