JP2012077586A - Lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a muffler functioning when locking a dead bolt in complete locking.SOLUTION: A lock includes a dead bolt which is provided with a rack gear along the moving direction of the dead bolt. On the other hand, the dead bolt has a pinion gear engaging with the rack gear, and a rotation control damper member of which brake force is different depending on the rotational direction is disposed in a lock box. The rotation control damper member is composed of a case fixed in the lock box, the pinion gear fixed to a projecting tip part of a torque axis of a rotor installed in the case and engaging with the rack gear, a control projection or rotation control blade having a brake surface provided on the rotor, and a highly viscous material filled in the case. Viscosity resistance of the highly viscous material against the control projection or rotation control blade having the brake surface is higher when the dead bolt is brought into a locking state from an unlocking state based on the operation force of a duplicate key than when the dead bolt is brought into the unlocking state from the locking state.

Description

  The present invention relates to a lock provided with a rotation control damper member for reducing a collision sound such as a metal sound generated when a dead bolt completely protrudes (at the time of locking).

  First, Patent Document 1 states that “a member 1 that moves substantially linearly by a moving urging force when unlocked, a rotating member 4 that is engaged with the member and rotated, and a rotating shaft fixed to the rotating member. (Torque shaft) 4b comprises a cylindrical bearing member 5 on which the rotating shaft 4b is rotatably supported, and the base portion of the rotating shaft 4b of the rotating member and the cylindrical mouth portion of the cylindrical bearing member have disc-shaped flanges 4d and 5d, respectively. A plurality of cylindrical portions concentric with the rotary shaft are formed on the flange surface so as to be fitted to each other between both cylindrical portions, and a damper effect is provided between the rotary shaft and the cylindrical bearing member. There is disclosed a “dumbar apparatus” characterized in that viscous oil interposed for obtaining the oil does not leak to the outside. In addition, it is described with reference to the drawings that the damper device of Patent Document 1 is applied to an opening / closing body of a tape recorder (an eject mechanism part of a cassette holder) for the purpose of eliminating an impact sound (reference numeral 1). Stuff).

  Next, Patent Document 2 states that “a rotation control damper in which a pinion meshes with a rack gear train provided on a latch bolt of a latch lock, and a highly viscous substance is incorporated in a bearing case fixed to the lock box. A latch lock silencer is provided that includes a member and reduces the collision noise generated when the latch bolt protrudes using the viscous resistance of the highly viscous substance. In addition, the problem of Patent Document 2 is that (a) As in Patent Document 1, the collision sound generated when the latch bolt of the latch lock protrudes in the technical field of the lock instead of the opening / closing body of the electronic device is reduced. In other words, for the purpose of silencing at the time of locking, a rack tooth row 36 is provided on the latch bolt 3 that moves backward via the retractor 7 by the operating force of the handle operation, while the inner wall surface of the lock box 1 A damper device having a pinion meshing with the rack tooth row 36 is provided, and the damper device is a high-viscosity substance (provided at a fitting portion between a torque bearing 86 and a torque shaft 81 having the pinion at a protruding tip portion). (For example, silicon oil). When the hand is released from the operation member, the spring force of the latch spring reduces the collision sound of the latch bolt 3 that returns to the initial position vigorously. Those of Patent Document 2).

However, in Patent Document 1 and Patent Document 2, (a) “equivalent damper effect” works regardless of whether the torque shaft of the damper device rotates clockwise or counterclockwise. If you want to have a stronger dambar effect when locking, or if you want a strong dambar effect that you want only when locked, and you don't want to have a damped effect when unlocked Has a problem that it is difficult to apply.
(B) Patent Document 2 discloses a dharma that rotates in a locking / unlocking direction by an operating force of a key that is inserted into at least a cylinder lock in a lock box, and a driving arm of the dharma at an engagement portion on the rear end side. A dead bolt whose front end is engaged with and disengaged from a receiving metal fitting on the door frame side, a locking time when the dead bolt is pushed out by the drive arm, and the drive The present invention is not applied to a lock provided with a click means in which a spring force acts to press the deadbolt in the moving direction when the deadbolt is pulled back by an arm, that is, the so-called lock. Therefore, at present, the appearance of a lock that reduces the operation sound generated when the deadbolt is locked is expected.

  Next, the rotation control damper member described in Patent Document 3 is provided at the bottom of the rotor 20 so as to be displaced depending on the rotor 20 integrally provided at the base end of the torque shaft 10 and the rotation direction of the rotor. It comprises a rotation shaft blade (oscillating blade) 23 for a torque shaft provided and a highly viscous material 50 filled in a case 40 that can be fixed to a stationary member. For example, when an opening / closing body of an electronic device opens and closes The rotation control blade (oscillating blade) 23 is displaced to reduce the viscous resistance of the highly viscous substance (first damping force), and the viscous resistance of the highly viscous substance is greater than the first damping force. It is described that there is a mode of increasing (second damping force) (the reference numeral is that of Patent Document 2). Although this Patent Document 3 has a description that it can be carried out when a “large damping force” is required only for rotation in one of the forward and reverse directions (paragraph 0030), the rotation control damper member is “ There is no description that it can be applied to the “silencer at the time of unlocking the dead bolt in this locking”.

  Further, Patent Document 4 and Patent Document 5 disclose click means for pressing the dead bolt in the forward / backward direction at the time of locking / unlocking. That is, the click means described in Patent Document 4 has a pressing piece whose base end is pivotally supported by a fixed shaft above the inner space of the lock box of FIG. The free end of the pressing piece is in pressure contact with an engaging protruding piece protruding in a mountain shape in the direction opposite to the driving arm of a so-called dharma (rotary driving body).

  In addition, the click means described in Patent Document 5 includes a pressing column that is incorporated in the rear end portion of the dead bolt in the vertical direction and pressed against the tip end portion of the driving arm of the dead bolt, and a click spring wound around the pressing column. Etc. These clicking means are publicly known matters, but can be applied or replaced in the present embodiment described later.

Shokai 60-8538 JP-A-9-151653 JP 2001-254772 A JP 2006-89986 A JP 2003-148023 A

  The intended purpose of the present invention is not to interfere with the operation of the key combination when unlocking the lock, and to reduce the impact sound of the dead bolt when the lock is locked, that is, based on the key lock operation. In addition, the collision sound during locking caused by the spring force of the click spring of the click means acting on the dead bolt is reduced (silenced) so that the so-called late-night collision sound does not disturb the human (eg family). It is to be. The second object is that the rotation control damper member can be easily incorporated into the lock box. Another object is that the rotor and the torque engaging body constituting the rotation control damper member operate smoothly and reliably.

  In the lock of the present invention, a dharma that rotates in the locking / unlocking direction by an operating force of a key that is inserted into at least a cylinder lock in the lock box, and a driving arm of the dharma is selectively connected to the engagement portion on the rear end side. A dead bolt having an opposing engaging surface to be engaged and a tip of which engages / disengages with a receiving metal fitting on the door frame side, and when the dead bolt is pushed out by the drive arm, and the dead by the drive arm. At the time of unlocking when the bolt is pulled back, a lock gear provided with a click means in which a spring force acts so as to press the dead bolt in the moving direction, and the dead bolt is provided with a rack gear along the moving direction, A rotation control damper member having a pinion gear meshing with the rack gear and having a different braking force depending on the rotation direction is disposed in the lock box, and the rotation control damper member includes: A control protrusion having a case fixed in the locking box, the pinion gear fixed to the protruding tip of the torque shaft of the rotor housed in the case and meshing with the rack gear, and a brake surface provided on the rotor Alternatively, it consists of a rotation control blade and a high-viscosity material filled in the case, and the viscous resistance of the high-viscosity material with respect to the control protrusion having the brake surface or the rotation control blade is based on the operating force of the key combination. The case where the dead bolt is changed from the unlocked state to the locked state is larger than the case where the dead bolt is changed from the locked state to the unlocked state.

  In addition, the lock of the present invention has a dharma that rotates in the locking / unlocking direction by an operating force of a combined key that is inserted into at least the cylinder lock in the lock box, and a driving arm of the dharma is selected as the engagement portion on the rear end side. A dead bolt whose front end portion engages and disengages with a receiving metal fitting on the door frame side, and when the dead bolt is pushed out by the drive arm, and by the drive arm. At the time of unlocking when the deadbolt is pulled back, a lock gear provided with a click means in which a spring force acts so as to press the deadbolt in the moving direction, and the deadbolt is provided with a rack gear along the moving direction, On the other hand, a one-way rotation control damper member having a pinion gear meshing with the rack gear and having a clutch mechanism for generating a braking force depending on the rotation direction is provided with the lock box. When the dead bolt changes from the unlocked state to the locked state based on the operation force of the key combination, the rotor of the clutch mechanism and the torque engaging body combined with the rotor rotate in cooperation. As a result, a resistance of a highly viscous substance acts on the rotor, and when the dead bolt is changed from the locked state to the unlocked state, the torque engaging body is idled with respect to the rotor. It is characterized by.

  Further, in the lock according to the present invention, the dharma that rotates in the locking / unlocking direction by at least the operating force of the key inserted into the cylinder lock, and the driving arm of the dharma selectively engages with the engagement portion on the rear end side. A dead bolt that has an opposing engagement surface and whose front end is engaged with and disengaged from a receiving metal fitting on the door frame side, and when the dead bolt is locked by the drive arm, and the dead bolt is pulled back by the drive arm. At the time of unlocking, a lock gear provided with a click means in which a spring force acts so as to press the dead bolt in the moving direction is provided with a rack gear along the moving direction on the dead bolt, A one-way rotation control damper member having a meshing pinion gear and a clutch mechanism for generating a braking force depending on the rotation direction is disposed in the lock box. The torque engagement body of the clutch mechanism includes a ratchet gear that cooperates with the torque shaft and has a recess on one side surface, and a ratchet that is incorporated in the recess and formed on the inner peripheral surface of the ratchet gear by a biasing spring. The engaging claw piece urged in the direction of engaging with the teeth, and a rotor connected to the engaging claw piece via linkage means and receiving the resistance of the high-viscosity substance, based on the operation force of the key combination When the deadbolt is changed from the unlocked state to the locked state, the members of the clutch mechanism torque engaging member rotate together in an integrated manner, so that the resistance of the high viscosity substance acts on the rotor. On the other hand, when the dead bolt is changed from the locked state to the unlocked state, the ratchet gear and the engaging claw piece of the torque engaging body are idled with respect to the rotor.

(A) It is possible to provide a silencer when locking a dead bolt in the present locking. In addition, the present invention reduces (silences) the collision sound at the time of locking based on the key operation and the spring force of the click spring of the click means acting on the dead bolt, so that the so-called late-night collision sound is generated. It is possible to prevent a person (for example, a family member) from being disturbed. At the same time, when unlocking the deadbolt, the resistance of the high-viscosity material is extremely low or not at all, so that the key-locking operation is not hindered.
(B) The invention described in claim 2 is that the rotation control damper member can be easily incorporated into the lock box.
(C) The invention described in claims 3 to 5 can obtain the same effect as that of the invention described in claim 1. In particular, when unlocking a dead bolt, resistance of a high-viscosity substance does not occur, so there is no hindrance to the key lock operation.
(D) Further, in the invention according to claims 3 to 5, for example, when the torque engaging body housed in the recess of the driven rotor rotates in one direction, the torque engaging body smoothly idles. When rotating in the other direction, the engaging claw is securely locked to the ratchet teeth of the recess and an outwardly expanding displacement action is generated on the entire arcuate wedge portion (circumferential portion). The arcuate wedge portion is in pressure contact with the inner peripheral wall of the driven rotor so that force is not concentrated on the claws. Therefore, the driven rotor that rotates in cooperation with the torque engaging member rotates while receiving the viscous resistance of a highly viscous substance such as grease or silicone oil. Also, the number of parts can be reduced.
(E) Although the invention according to claim 6 also increases the number of constituent members of the torque engagement body of the clutch mechanism, the same effect as the present invention can be obtained.

1 to 8 are explanatory views showing a first embodiment of the present invention. 9 and 10 are each explanatory views showing a second embodiment of the present invention. 11 to 16 are explanatory views showing a third embodiment of the present invention. FIG. 17 is an explanatory view showing a fourth embodiment of the present invention.
Schematic explanatory drawing which shows the environment of 1st Embodiment. Explanatory drawing of the principal part of FIG. The schematic cross-section explanatory drawing of the principal part. Explanatory drawing of the principal part (joint key, cylinder lock, click means). Schematic cross-sectional explanatory drawing of a rotation control damper member. Explanatory drawing of a rotor. Explanatory drawing when a deadbolt will be in an unlocking state. Explanatory drawing which shows the internal structure of a rotation control damper member. Explanatory drawing of 2nd Embodiment. Explanatory drawing which shows the internal structure of a unidirectional rotation control damper member. Explanatory drawing from the front view of the principal part of 3rd Embodiment. 12 is a schematic cross-sectional view taken along line 12-12 of FIG. Explanatory drawing from the back view of the principal part. The exploded explanatory view which looked at the principal part from the back side. Explanatory drawing at the time of locking of a principal part. Explanatory drawing at the time of unlocking of a principal part. Explanatory drawing which shows 4th Embodiment of this invention.

(1) Environmental Member / Prerequisites of the Present Invention FIG. 1 is a schematic explanatory view showing an environmental member of the present invention. In this figure, 1 is a door frame, 2 is a receiver fixed to the door frame, and the receiver 2 has a trojoke and a strike plate as is well known.
On the other hand, X is a lock provided at the free end of the door 3, and a lock box 4 constituting the lock X is fixed to the door 3 with screws or the like. The lock box 4 includes a case body 4 a having a front 5 and a case lid 4 b fixed to the case body, and is incorporated in, for example, the mouth of the door 3. Reference numeral 6 denotes a dead bolt provided in the lock box 4 so as to be able to move in and out. Reference numeral 7 denotes a dharma (rotary drive body) having a drive arm 7a that selectively engages opposed inclined engagement surfaces at the rear end of the dead bolt 6. ). Reference numeral 8 denotes click means, and 9 denotes a stopper piece that engages with an engaged portion of the dead bolt 6 and maintains the locked state of the dead bolt 6. In addition, in the lower space in the lock box 4, as shown in Patent Document 2, for example, a latch bolt 53 that moves backward via a retractor 52 that rotates by the operating force of the operating member 51, and the latch bolt 53 are provided. A latch mechanism Y including a latch spring 54 that is biased in the protruding direction and a latch main body 55 that is integrally provided at the tip of the latch bolt 53 and that is engaged with and disengaged from the support 2 is appropriately incorporated. Note that the latch bolt 53, the latch body 55, and the like can be replaced with known or well-known inversion latches. In the latter case, a temporary locking mechanism for the reverse latch is appropriately incorporated in the lock box 4.

  2 to 4 are explanatory diagrams of main parts. For example, in FIG. 4, 11 is a key to be inserted into the keyhole of the cylinder lock 12, 12 is a cylinder lock, 7 is a dharma having a drive arm 7a in the radially outward direction, and 8 is a click means.

  Here, an example of the click means 8 will be described with reference to FIG. For example, the click means 8 is wound around a ten-handed push-down member 8a, a pivot pin 8b that pivotally supports the base of the push-down member 8a on the drive arm 7a of the dharma 7, and a long flange portion of the push-down member 8a. And a click spring (coil spring) 8c.

  The dharma 7 further includes a cylindrical first dharma component piece on the sumter side and a cylindrical second dharma component piece on the cylinder 12 side that is combined therewith.

  Therefore, the lock X having both the cylinder lock 12, the lock having the dharma 7 and the dead bolt 6 and the latch mechanism Y described above is operated in the lock box 4 at least in the key hole of the cylinder lock 12. And the engagement portion on the rear end side has opposing engagement surfaces 6a and 6b with which the dharma drive arm 7a selectively engages, and the front end portion of the dharma 7 is a door. The dead bolt 6 that engages and disengages with the frame side metal fitting 2, the dead bolt 6 when the dead bolt 6 is pushed by the drive arm 7a, and the dead bolt 6 when the dead bolt 6 is pulled back by the drive arm 7a. There are provided click means 8 on which spring force acts so as to press the bolt 6 in the moving direction (the advance direction and the backward movement direction).

  Thus, when the key 11 is rotated in the locking direction, the dharma 7 rotates in a predetermined direction, so that the dead bolt 6 is retracted by the driving arm 7a of the damal 7 (unlocked state) from FIG. Move in the locking direction shown. At that time, the click spring 8c of the click means 8 contracts as the long flange portion of the push-down member 8a passes through the through hole of the support shaft 13, and at the same time, the short flange portion of the push-down member 8a returns the stopper piece 9 to its return position. Push down against the spring force of the spring 14.

  When the deadbolt 6 is locked, the person who operates the key 11 in the locking direction usually rotates only the required amount in general. Therefore, the click spring 8c of the click means acts to press the deadbolt in the moving direction. As a result, a “metal collision sound” is generated.

  Therefore, in the present embodiment, when the dead bolt 6 is fully projected, the rack gear 16 provided on one side of the dead bolt 6 is provided with a rotation control damper member 21 that reduces the collision noise caused by the dead bolt 6. It arrange | positions in the lock box 4 so that it may mesh | engage.

(2) Main part As shown in FIG. 7, for example, 16 is a rack gear, and this rack gear is formed or provided on one side of the dead bolt 6 along its moving direction. On the other hand, reference numeral 21 denotes a rotation control damper member 21 whose pinion gear 27 meshes with the rack gear 16.

  Thus, the rotation control damper member 21 is disposed in a space above the lock box 4 with respect to the dead bolt 6 with respect to the dead bolt 6. Therefore, the rotation control damper member 21 is provided on the inner wall of the case body 4a (or the case lid 4b) of the lock box 4 with a plurality of fixing tools 22, 22 and projecting piece-like mounting portions 23a, 23a and a positioning reference for the case body 4a. A cylindrical case 23 having a bottom with one end opening fixed through the fitting hole 10 for use, and a protruding tip portion of a torque shaft 25 of a rotor 24 rotatably mounted in the cylindrical case 23; In addition, the pinion gear 27 meshed with the rack gear 16 via the intermediate gear or not, and the notch-like recess 32 formed at the bottom of the rotor 24 so as to be displaced inward and outward depending on the rotational direction of the rotor 24. The high-viscosity substance 2 filled in the space portion between the rotation control blade 28 provided through the flexible connection portion 28 a and the inner wall bottom surface of the cylindrical case 23 and the bottom surface of the rotor 24. Consisting of.

  For example, in FIG. 8, reference numeral 30 denotes a lid that closes one end opening of the cylindrical case 23, and the torque shaft 25 of the rotor 24 described above passes through the shaft hole at the center of the lid 30. Reference numeral 31 denotes a bottom-up center protrusion provided at the center of the bottom of the rotor 24, and the center protrusion 31 is in sliding contact with the center of the bottom surface of the inner wall of the cylindrical case 23. Further, reference numeral 32 denotes one or a plurality of notch-like recesses formed at appropriate locations on the peripheral end portion of the bottom of the rotor 24. One end portion of the rotation control blade 28 is provided at an appropriate location on the inner wall surface of the notch-shaped recess 32. Is integrally provided on the rotor 24 via the flexible connection portion 28a, and the inclined brake surface 28b is provided at the free end of the rotation control blade 28 corresponding to the opposite side of the flexible connection portion 28a. Is formed. The rotation control blade 28 may be one or a plurality of control protrusions having a brake surface 28b on one side.

  The rotation control damper member 21 having the above-described configuration is configured such that when the dead key 6 is retracted into the lock box 4 by rotating the joint key 11 in the unlocking direction, the free end portion of the rotation control blade 28 is notched. Since the position is displaced to the bottom side of the inner wall surface of the place 32, a small torque (first damping force) is generated by the viscous resistance of the high-viscosity substance 29 built in the cylindrical case 23, while the key 11 is locked. When the deadbolt 6 protrudes from the lock box 4 by rotating in the direction, a torque larger than the first damping force due to the viscous resistance of the high-viscosity material 29 with respect to the advancing movement of the deadbolt 6 ( (Second damping force) is generated. In addition, the viscous resistance of the high-viscosity material 29 with respect to the control protrusion having the brake surface 28b or the rotation control blade 28 is based on the operation force of the key 11 when the dead bolt 6 is changed from the unlocked state to the locked state. The dead bolt 6 becomes larger than the case where the locked state is changed to the unlocked state.

  Therefore, the present invention does not hinder the operation of the key combination when unlocking the lock, and can mitigate (silence) the impact sound of the dead bolt when locking the lock.

  In this column, the lock X1 of the second embodiment (example) of the present invention will be described. The main differences between the lock X1 and the lock X of the first embodiment are (a) the specific configuration (b) of the rotation control damper member 21A and the operation of the rotation control damper member 21A.

  9 and 10 show a specific configuration and operation of the one-way rotation control damper member 21A. In these drawings, the same (similar) configurations as those in the first embodiment are denoted by the same or similar reference numerals, and redundant description is omitted. In addition, FIG. 1, FIG. 2, etc. of 1st Example are used for the environmental figure of 2nd Example.

  The lock X1 is provided with a rack gear 16 along the moving direction of the dead bolt 6 and has a pinion gear 27 that meshes with the rack gear, and a one-way rotation provided with a clutch mechanism that generates a braking force depending on the rotation direction. When the control damper member 21A is arranged in the lock box 4 and the dead bolt is changed from the unlocked state to the locked state based on the operation force of the key 11, the rotor 24A of the clutch mechanism is combined with the rotor. When the torque engaging body 25A rotates in cooperation with the rotor, a resistance of the high-viscosity material 29 acts on the rotor. On the other hand, when the dead bolt 6 changes from the locked state to the unlocked state, The torque engaging body 25A is idling with respect to the rotor 24A. The clutch mechanism includes a rotor 24A and a torque engaging body 25A having a torque shaft 25 incorporated in a recess of the rotor.

  Therefore, first, 23A is a cylindrical case with a bottom, 24A is a driven rotor rotatably mounted in the cylindrical case, and 25A is a recess formed on one side surface of the driven rotor 24A. Depending on the torque engaging body 25, which is independently rotatably mounted, 25 is a torque shaft provided at the center of the torque engaging body 25A and penetrates the lid 30, and 27 is fixed to the projecting tip of the torque shaft 25 and dead. This is a pinion gear that directly meshes with the rack gear 16 of the bolt 6.

  Thus, the one-way rotation control damper member 21A forms a recess 41 on one side surface (upper surface in FIG. 10) of the driven rotor 24A, and a ratchet along the circumferential direction on the inner wall bottom surface of the recess 41. An elastic arcuate wedge portion a that forms teeth 42 and can be expanded and displaced so as to be in pressure contact with an inner peripheral wall 43 perpendicular to the bottom surface of the inner wall of the recess 41, and the ratchet at the tip of the arcuate wedge portion a A torque engagement body 25A having engagement claws b that engage with and disengage from the teeth 42 is incorporated.

  In the above configuration, when the dead bolt 6 is changed from the unlocked state to the locked state based on the operating force of the key 11, the rotor 24 </ b> A and the torque engagement body 25 </ b> A incorporated in the recess 43 of the rotor cooperate. Thus, the resistance of the high-viscosity material 29 acts on the brake control protrusion or the rotation control blade 28A. On the other hand, when the dead bolt 6 changes from the locked state to the unlocked state. The torque engagement body 25A is idled with respect to the rotor 24A.

  In addition, when the joint key 11 is rotated in the unlocking direction, the dead bolt 6 is retracted into the lock box 4. At this time, the torque engaging body integral with the torque shaft 25 (cooperating with the torque shaft 25). Since the engaging claw b of 25A rides over each tooth of the ratchet teeth 42, the torque engaging body 25A is in an idle state (idle) with respect to the driven rotor 24A. Therefore, the braking (load) of the rotation control damper member 21A is not applied to the operation of the key 11 as the operation member. That is, the operation of the key 11 is not hindered.

  On the other hand, when the key 11 is rotated in the locking direction, the two engaging claws b of the torque engaging body 25A are locked to the ratchet teeth 42. Occurs, and the arcuate wedge portion a is pressed against the inner peripheral wall 43 of the driven rotor 24A, and a frictional resistance is generated therebetween.

  As a result, the torque engagement body 25A and the driven rotor 24A rotate together in cooperation. At that time, the viscous resistance of the high-viscosity material 29 to the driven rotor 24A is achieved by one or a plurality of brake control projections 28A (or rotation control blades 28A as in the first embodiment) formed on the bottom of the driven rotor 24A. Is generated as a “relatively large damping force” so as to reduce the collision sound.

  Next, FIGS. 11 to 16 are explanatory views showing a third embodiment of the present invention. In the description of the third embodiment, the same or similar reference numerals are given to the same portions as in the second embodiment. This third embodiment is mainly different from the first embodiment in that the rotation control damper member 21B is “one-way rotation control” as in the second embodiment. Therefore, the rotation control damper member 21B is Similar to the second embodiment, a “clutch mechanism that generates a desired braking force depending on the rotational direction” is provided.

  Here, for example, the configuration of the main part will be described with reference to FIG. 12 (schematic cross section similar to FIG. 10). 4a is a case body having a fitting hole 10, and a plurality (for example, two) of unnumbered screw holes are formed in the vicinity of the fitting hole of the case body 4a.

  23B is a bottomed cylindrical case having a hat-shaped cross section. The bottomed cylindrical case 23B is formed with a fitting portion (housing portion) 40 having a recess, and the fitting portion 40 is fitted to the case body 4a. Fit into the hole 10.

  Reference numeral 30 denotes a lid that closes the recess of the fitting portion 40. The lid 30 is connected to the case body 4a (in some embodiments, the case lid 4b) through the plurality of fixing members 22 together with the bottomed cylindrical case 23B. It is fixed to the inner wall surface.

  Next, the clutch mechanism will be described. The torque engagement body 25B of the clutch mechanism cooperates with the torque shaft 25 and has a ratchet gear 44 having a recess 45 on one side surface, and an inner periphery of the ratchet gear 44 incorporated in the recess 45 by a biasing spring 48. The engaging claw piece 47 urged in a direction to engage with the ratchet teeth 46 formed on the surface, and the engaging claw piece 47 connected via the male / female linking means 49 and the resistance of the high viscosity substance 29 And a rotor 24B.

  Thus, referring to FIG. 12, 24B is a disk-shaped (driven) rotor, and this rotor 24B is rotatably incorporated in a recess of the bottomed cylindrical case 23B on the fixed side. A central projection 31 and a plurality of control projections (or blades) 28A and 28A are provided on one side rear surface (lower surface in FIG. 12) of the driven rotor 24B, as in the second embodiment. On the other hand, one or a plurality of support holes 49a (in this embodiment) are formed on one side surface of the driven rotor 24B (the upper surface in FIG. 12 and the back surface in FIG. 14) constituting one of the linking means 49.

  Next, other components of the torque engagement body according to the third embodiment will be described. The torque engagement body 25B according to the third embodiment is composed of a plurality of members as shown in FIG. In particular, the torque engagement body 25B of the third embodiment includes a ratchet gear 44 that engages with the torque shaft 25 through the square shaft hole 50 and rotates in cooperation with the torque shaft 25, and a stepped recess 45 of the ratchet gear. One or a plurality of (in this embodiment) arcuate engagement claw pieces 47 incorporated into the projection and a projection constituting the other of the linkage means 49 projecting from the base end portion of these (these) engagement claw pieces 47 The biasing spring 48 is wound around the shaft 49b. The explanation of other details is omitted.

  In the above configuration, when the dead bolt 6 is changed from the unlocked state to the locked state based on the operation force of the key combination, the members 44, 47, 24B constituting the torque engaging body 25B of the clutch mechanism are integrally cooperated. By acting and rotating, the resistance of the high-viscosity material 29 acts on the rotor 24B. On the other hand, when the dead bolt 6 changes from the locked state to the unlocked state, the ratchet gear of the torque engagement body. 44 and the engaging claw piece 47 are idled with respect to the rotor 24B. In other words, the engaging claw piece 47 is displaced in the direction away from the ratchet teeth 46 against the spring force of the biasing spring 48 with the projection shaft 49b as a fulcrum, so that the torque shaft (pinion gear) 27), the ratchet gear 44 of the torque engaging body 25B that rotates in cooperation with the rotor rotates idly with respect to the stopped rotor 24B while dragging the plurality of engaging claw pieces 47.

  Finally, FIG. 17 is an explanatory view showing a fourth embodiment of the present invention. The third embodiment is different from the first embodiment in Dharma 7. The dharma 7 includes, for example, a first rotating body 7A that directly rotates by an operation force of a key combination, and a second rotating body 7B that has a driving arm 7a that meshes with the first rotating body 7A and extends radially outward. Become. In this manner, the dharma 7 is configured as a plurality of (for example, two, three) rotating bodies, and the driven second rotating body 7B (or a third rotation not shown) that rotates with the driving force of the first rotating body 7A. The dead bolt 6 </ b> A may be caused to appear and disappear from the lock box 4 by a driving arm 7 a provided on the body. The third embodiment is mainly different from the first embodiment in the click means 8A. The click means 8A employs a so-called eyeglass spring in which one end of the dead bolt 6A is attached and displaced. Thus, even if the dharma 7 and the click means 8A are replaced with known matters, the same actions and effects as in the present invention can be obtained.

  By the way, in this embodiment, when the rotation control blade is provided on the driven rotor in place of one or a plurality of brake control projections (28, 28A), the connection portion of the rotation control blade is flexibly connected. Instead of the part 28a, for example, a shaft and a shaft hole can be connected. Therefore, the configuration of the connection portion of the rotation control blade is not an essential matter of the invention.

  Further, both the rotation control damper member 21 of the first embodiment and the one-way rotation control damper member 21A of the second embodiment are formed with positioning fitting holes 10 on the wide side wall of the lock box 4, and the one-way rotation control damper. The case 23 of the member is in a state where one end portion of the case is fitted in the fitting hole 10 and has flange portions 23 a and 23 a having an unnumbered attachment hole projecting from the case, and a plurality of fixing tools 22. And fixed to the inner wall surface of the wide side wall (characteristic).

  The present invention is used in the fields of locks and joinery.

X, X1 ... lock, 1 ... door frame, 2 ... receptacle, 3 ... door, 4 ... lock box, 4b ... case lid, 6, 6A ... dead bolt, 7 ... dharma, 8, 8A ... click means, 8c ... Rick spring, 9 ... stopper piece, 10 ... fitting hole, 11 ... key lock, 12 ... cylinder lock, 13 ... support shaft, 16 ... rack gear, 21, 21A, 21B ... rotation control damper member, 22 ... fixing tool, 23, 23A ... Case, 23a ... Flange part, 24, 24B ... Rotor, 24A ... Driver rotor, 25 ... Torque shaft, 25A, 25B ... Torque engaging body, 27 ... Pinion gear, 28 ... Rotation control blade (or control projection), 28a DESCRIPTION OF SYMBOLS Flexible connection part, 28b ... Brake surface of protruding end, 28A ... Control protrusion for brake, 29 ... High viscosity substance, 30 ... Lid, 31 ... Center protrusion, 32 ... Notch-shaped recess, 41 ... Recess 42 ... Rache Teeth, 43 ... inner peripheral wall, a ... arc-shaped wedge part, b ... engagement claw 1 ..., 44 ... ratchet gear, 45 ... recess, 46 ... ratchet teeth, 47 ... engagement claw piece, 48 ... biasing spring, 49 ... linking means, 50 ... square shaft hole.

Claims (6)

In the lock box, a dharma that rotates in the locking / unlocking direction at least by the operating force of the key that is inserted into the cylinder lock, and a counter-engagement in which the driving arm of the dharma selectively engages with the engagement part on the rear end side A deadbolt having a surface and a front end portion of which is engaged with and disengaging from a receiving bracket on the door frame side, and when the deadbolt is pushed out by the drive arm, and the deadbolt is pulled back by the drive arm A pinion gear which is provided with a rack gear along the moving direction of the dead bolt, and which is engaged with the rack gear. A rotation control damper member having different braking force depending on the rotation direction is disposed in the lock box, and the rotation control damper member is fixed in the lock box. The pinion gear fixed to the projecting tip of the torque shaft of the rotor housed in the case and meshing with the rack gear, and a control protrusion or a rotation control blade having a brake surface provided on the rotor The viscous resistance of the high-viscosity material with respect to the control projection or the rotation control blade having the brake surface is based on the operating force of the key lock, and the dead bolt is unlocked. The lock according to claim 1, wherein the lock state is larger when the dead bolt is changed from the locked state to the unlocked state. The positioning hole is formed in the wide side wall of the lock box, and the case of the rotation control damper member is in a state in which one end of the case is fitted in the fitting hole and the case. A lock which is fixed to an inner wall surface of the wide side wall through a flange portion projecting from the wall. In the lock box, a dharma that rotates in the locking / unlocking direction at least by the operating force of the key that is inserted into the cylinder lock, and a counter-engagement in which the driving arm of the dharma selectively engages with the engagement part on the rear end side A deadbolt having a surface and a front end portion of which is engaged with and disengaging from a receiving bracket on the door frame side, and when the deadbolt is pushed out by the drive arm, and the deadbolt is pulled back by the drive arm A pinion gear which is provided with a rack gear along the moving direction of the dead bolt, and which is engaged with the rack gear. And a one-way rotation control damper member having a clutch mechanism that generates a braking force depending on the rotation direction. When the deadbolt changes from the unlocked state to the locked state based on the working force, the rotor of the clutch mechanism and the torque engaging body combined with the rotor rotate in cooperation, thereby causing the rotor to have high viscosity. A lock according to claim 1, wherein when the deadbolt is changed from the locked state to the unlocked state, the torque engaging body is idled with respect to the rotor. 4. The lock according to claim 3, wherein the clutch mechanism includes a rotor and a torque engaging body incorporated in a recess of the rotor and having a torque shaft. 5. The torque engaging body incorporated in the recess of the rotor according to claim 3 or 4, wherein the engaging pawl is idled when rotating in one direction, and the engaging pawl is rotated when rotating in the other direction. A lock which is locked to ratchet teeth formed in a recess, has an outward expansion effect on an arcuate wedge portion, and the arcuate wedge portion presses against an inner peripheral wall of the rotor. At least a dharma that rotates in the locking and unlocking direction by the operating force of the key that is inserted into the cylinder lock, and an opposing engagement surface that selectively engages the driving arm of the dharma with the engagement portion on the rear end side, A dead bolt whose front end is engaged with or disengaged from a receiving bracket on the door frame side, and when the dead bolt is locked by being pushed out by the driving arm and when the dead bolt is pulled back by the driving arm, the dead bolt In the lock provided with a click means each of which exerts a spring force so as to press in the moving direction, the dead bolt is provided with a rack gear along the moving direction, while having a pinion gear meshing with the rack gear and rotating. A one-way rotation control damper member having a clutch mechanism that generates a braking force depending on the direction is disposed in the lock box, and the clutch mechanism The clutch engaging body engages with a ratchet gear cooperating with the torque shaft and having a recess on one side surface, and a ratchet tooth incorporated in the recess and formed on the inner peripheral surface of the ratchet gear by a biasing spring. The engagement claw piece biased in the direction and a rotor connected to the engagement claw piece via linkage means and receiving the resistance of the highly viscous substance, and the dead bolt is released based on the operation force of the key. When the locked state is changed to the locked state, the members constituting the torque engaging body of the clutch mechanism integrally rotate in cooperation with each other, so that the resistance of the highly viscous substance acts on the rotor. When the deadbolt is changed from the locked state to the unlocked state, the ratchet gear and the engaging claw piece of the torque engaging body are idled with respect to the rotor.

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