JP4717404B2 - Lock thumb turn - Google Patents

Description

  The present invention relates to a security-type lock thumb turn.

  The thumb turn of the lock described in Patent Document 1 includes a thumb turn cylinder attached to the inside of a door, a cylinder lock installed in the thumb turn cylinder, a cylindrical thumb turn cover that covers the tip of the cylinder lock, and the cylinder. It is composed of a thumb-turn knob and a combined key that can be locked and unlocked from the indoor side. For example, when it is desired to remove the key from the cylinder lock at the time of locking, the spring of the spring member built in the tip of the thumb-turn cylinder When the plate-shaped key stopper inserted into the thumb-turn cover is pushed up against the force with a finger, the opening edge having the lock function of the key stopper is separated from the engaging protrusion of the slot portion of the key lock, so that when going to bed, It is possible to pull out the combined key for picking at any time. Therefore, there is an advantage that even if a thief breaks a part of the glass of the door, for example, the so-called “thumb turn” cannot be performed.

However, the thumb turn of the lock requires a plate-shaped key stopper having a structurally complex shape, and is formed at the opening edge of the key stopper and the key stem while pushing the key stopper with a finger when desired. Since the operation member has to be pulled out as it is while eliminating the interference state with the engaging protrusion, there is a problem that the pulling out operation is troublesome.
JP 11-93482 A

  The first object of the present invention is to use a simple mechanism and rational means to prevent the operation member from moving in the axial direction even when the operation member is rotated in the circumferential direction, and to simplify the operation of pulling out the operation member. The second object is to easily incorporate the biasing spring and the movable engagement element and to stably guide the movable engagement element. The third purpose is to rationally attach the inner and outer cylinder locks to the door in accordance with the limited thickness of the door to improve the crime prevention.

The thumb-turn of the lock of the present invention is a thumb-turn of a lock provided with a cylindrical thumb-turn seat fixedly provided on a wall surface of the door or a lock case, and an operation member that is removably inserted into the thumb-turn seat. A pin-like shape having recesses having longitudinal storage grooves opposed to each other in the radial inward direction of the thumb turn seat at the distal end portion of the thumb turn seat, each of which is biased by a biasing means and having a flange portion The movable engagement elements are assembled so as to face each other, and then a guide plate for guiding the movable engagement elements is fixed to the distal end surface of the distal end portion, and the pin-shaped movable engagement elements are at least the guide plate or the thumb turn. It is movable in a radial direction through the flange portion to be engaged with the small guide portion formed on the distal end surface of the seat, and, when inserting the said operating member to the thumb seat, the operation The pin-shaped movable engaging element in formed on the fitting portion of the timber circumferential groove is engaged simultaneously, whereas, when pulling the operating member, without multi-operation, characterized in that it can be pulled out as it is.

  In the above configuration, a cylindrical connector is incorporated in the thumb turn seat together with the inner cylinder lock, and the outer cylinder lock is arranged coaxially with the thumb turn core connected to the connector. To do.

The lock thumb turn of the present invention is a lock thumb turn comprising a cylindrical thumb turn seat fixedly provided on a wall surface or a lock case of a door, and an operation member that is removably inserted into the thumb turn seat. Forming a circumferential groove inside the tip portion of the thumb turn seat, while forming a longitudinal storage groove directed radially outward together with the small guide portion in the fitting portion provided continuously with the knob portion of the operation member, A pin-like movable engagement element that is urged radially outward through an urging means and has a flange portion is incorporated in each of the vertically long storage grooves, and then the movable engagement element is guided to the distal end surface of the fitting portion. An annular guide plate is fixed, and the pin-like movable engagement element is arranged in the radial direction through at least the small guide portion formed on the guide plate or the flange portion engaged in the small guide portion formed on the insertion portion. Transfer Are possible, and, when inserting the said operating member to the thumb seat, said pin-shaped movable engaging element of the operation member is engaged at the same time engages in a circumferential groove of the thumb seat, whereas, when pulling the operating member Is characterized in that it can be pulled out as it is without many operations.

(1) Since the circumferential groove (circumferential groove) in which the movable engagement element is pressed against the insertion portion of the operation member is formed, the operation member does not move in the axial direction even if the operation member is rotated in the circumferential direction. In addition, by freely engaging and disengaging the movable engagement element and the groove of the insertion portion of the operation member, no operation is performed with the remaining fingers while holding the knob portion of the operation member (without multiple operations). The operation member can be pulled out from the thumb turn seat. Therefore, the operation of pulling out the operation member is extremely simple.
(2) Since the plurality of movable engagement elements are respectively incorporated in the plurality of small guide portions formed on at least the guide plate and the thumb turn seat, the movable engagement elements can be stably guided. Further, since the guide plate is fixed to the tip of the thumb turn seat, it is easy to incorporate a biasing spring or a movable engagement element.
(3) According to the invention described in claim 2, it is possible to rationally attach the inner and outer cylinder locks to the door corresponding to the limited thickness of the door, and to improve the crime prevention.

  Hereinafter, the best mode for carrying out the present invention shown in FIGS. 1 to 7 will be described.

(1) Implementation Environment As shown in FIG. 1, reference numeral 1 denotes a door that separates the outdoor side 2 and the indoor side 3. Since the door 1 is one of the joinery, it is provided with respect to the door frame 4 of a house, for example. A receiving bracket 5 is fixedly provided on the door frame 4, and a dead bolt 7 protruding from the front 6 of the lock X provided on the door 1 is engaged with and disengaged from the receiving bracket 5.

  Now, in the lock X of the door 1, a dead bolt 7 protrudes from the front 6 of the lock case 8 (this embodiment), a dead bolt protrudes from the side wall of the lock case on the thumb turn knob side, There are various types such as the one where the thumb turn shaft (drive core material) of the thumb turn knob located and the drive shaft (including the tailpiece) of the cylinder lock located on the outdoor side 2 are located on the same axis, and the other is not. Yes.

  Since the present invention relates to the thumb turn of the lock, the mounting manner of the lock X, the specific structure of the lock X, and whether or not the inner and outer cylinder locks are provided on the same axis are not necessarily limiting requirements. For convenience, as shown in FIGS. 1 and 2, in a type in which the lock case 8 is built in the free end portion of the door 1, it can be locked and unlocked by an inner and outer operation member (for example, the same key) 11. The lock X having the inner and outer cylinder locks 12 and 13 will be described as an example.

  Now, when the occupant operates the key 11 as the operation member from the outdoor side 2, the outer cylinder lock 13 unlocks the locking / unlocking mechanism including the outer cylinder, the inner cylinder, the obstacle, the spring member, and the like. It is locked or locked. Therefore, this also applies to the inner cylinder lock 12. When the key 11 is inserted into a thumb turn seat 15 (described later) and operated, a cylindrical connector 18 and a dharma 20 having a drive arm linked to the operating force are respectively connected. The dead bolt 7 appears and disappears from the front 6.

(2) Configuration of Lock The configuration of the lock X will be described with reference to FIG. First, 15 is a cylindrical thumb turn seat fixedly provided on the wall surface of the door 1 or the lock case 8. In this embodiment, the thumb turn seat 15 is fixed to the inner wall surface 1a of the door 1 or the lock case 8 via a fixing tool (not shown). Further, in this embodiment, the thumb turn seat 15 is a thick tubular body fixed to the inner wall surface 1a of the door 1 as shown in FIG. A connector 18 is incorporated, and an outer cylinder lock 13 is disposed on the door 1 coaxially with a thumb turn core 19 connected to the connector 18.

  Reference numeral 16 denotes a thumb turn cover for a thumb turn seat. The thumb turn cover 16 is formed in a trapezoidal shape in cross section, and a through hole 17 for an operation member is formed in the vertical wall 16a. Further, an engaging portion having a claw-like cross section that engages with a protruding locking portion provided around the tip end portion of the thumb turn seat 15 is formed on the peripheral edge of the peripheral body portion 16b of the thumb turn cover 16. (Because it is a detailed matter, the reference numerals are omitted.)

  Next, reference numeral 12 denotes an inner cylinder lock, which is horizontally installed in the center of the thumb turn seat 15. Although not particularly designated, the thumb turn seat 15 is formed to be thick so that the inner cylinder lock 12 can be housed in the insertion direction of the operation member 11 and communicates with the through hole 17 of the thumb turn cover 16. It has a through-hole fitting hole. The inner cylinder lock 12 is smaller in length, size, etc. than the outer cylinder lock 13.

  A rotatable cylindrical connector 18 is provided on the rear end surface of the inner cylinder lock 12. The connector 18 can be rotated up to 180 degrees when the key as the operation member 11 is rotated. Therefore, when the connector 18 and the thumb turn core (thum turn input shaft) 19 passing through the connector 18 are rotated by the operation member 11, the dharma 20 in the lock case 8 engaged with the thumb turn core is rotated by a predetermined amount. The dharma 20 is rotatably supported by a pair of left and right support plates 21 fixedly disposed in the lock case 8.

  Next, 13 is an outer cylinder lock provided on the outer wall surface 1 b side of the door 1 via a fixed cylinder 22. As described above, the inner cylinder of the outer cylinder lock 13 is rotated in the locking or unlocking direction by the operation of the combination key 11 as the operation member. When the inner cylinder rotates, the driving shaft (including the tail piece) 23 rotates, and the dharma 20 rotates by the driving force.

  Therefore, in the lock X of this embodiment, the thumb-turn core (thum-turn input shaft) 19 or the drive shaft 23 is rotated by the key operation of the operation member 11 inserted into the inner cylinder lock 12 or the outer cylinder lock 13, and interlocked with this. Then, when the dharma 20 rotates, the dead bolt 7 appears and disappears with respect to the receiving metal 5 via the driving arm extending in the radial outward direction of the dharma 20.

(3) Structure of main part The structure of the main part of this invention is demonstrated with reference to FIG. 3 thru | or FIG. The thumb turn seat 15 is formed in a thick cylindrical body as described above, and includes the inner cylinder lock 12 in the fitting hole.

  First, 25 is a space portion (recess) of the thumb turn seat 15 that remains (set) in front of the inner cylinder of the inner cylinder lock 12, and this space portion 25 is formed with the through hole 17 of the vertical wall 16 a of the thumb turn cover 16. Communicate. The columnar insertion portion 11 b of the operation member 11 enters the space portion 25.

  Next, 26 and 26 are radially outward storage portions (storage grooves) communicating with the recess 25, and in this embodiment, they are formed in a vertically long shape so as to be opposed to each other on the basis of FIG. ing. These vertically long storage grooves 26, 26 are provided with an urging spring 28 and a spring force of the urging spring 28 due to the presence of an annular guide plate 27 fixed to the tip portion of the thumb turn seat 15 via a fixing tool (not shown). Thus, the movable engaging element 29 that is always urged inward in the radial direction is housed.

As shown in FIGS. 5 and 6, the guide plate 27 includes a center hole 31 having the same diameter as that of the through hole 17 of the thumb turn cover 16 formed in the center, and the center hole 31 in the present embodiment. And a plurality of small guide portions (grooves, notches, holes, etc.) 32 and 32 respectively formed at appropriate portions on concentric circles. Small groove-shaped small guide portions 33 corresponding to the small guide portions 32, 32 are also appropriately formed on the inner wall surface of the thumb-turn seat 15 where the vertically long storage grooves 26, 26 are formed.

  On the other hand, the movable engagement member 29 is formed in a pin shape having a flange portion 29 b guided by both the small guide portion 32 of the guide plate 27 and the small guide portion 33 of the thumb turn seat 15, and is formed on the outer wall of the operation member 11. The tip portion 29a that is in pressure contact is formed in a hemispherical shape. One end of the urging spring 28 is wound around the other end 29 c of the pin-shaped movable engagement element 29.

  The hemispherical distal end portion 29a of the movable engagement member 29 can be arbitrarily changed in design (for example, formed in a slightly mountain shape) within a range in which the object of the present invention can be achieved.

  Next, an example of the operation member 11 shown in FIG. 4 will be described. As described above, the operation member 11 of this embodiment is inserted into the thumb turn seat 15 or the inner cylinder lock 12 from the indoor side 3 and can rotate the thumb turn input shaft 19 by a predetermined amount, and can also be removed from the outdoor side 2. The drive shaft 23 can be rotated by a predetermined amount by being inserted into the cylinder lock 13.

  Therefore, the operation member 11 has an oval or slightly rhombus knob 11a on the front surface on the front side, and a columnar shape that can enter the space portion 25 of the thumb turn seat 15 on the front surface of the knob 11a. The fitting portion 11b is formed to protrude. A stem portion 11c that can be inserted into the inner and outer cylinder locks 12 and 13 extends from the fitting portion 11b.

  Thus, a groove (semi-arc shape, arc shape, etc.) 35 as an engaged portion is formed in the circumferential direction at a portion near the insertion end of the outer wall of the fitting portion 11b. The groove 35 of the present embodiment employs a circumferential groove because the operation member 11 is stably rotated.

(4) Operation of the Present Invention The operation of the present invention will be described with reference to FIG. Before the operation member 11 is inserted, the movable engagement element 29 slightly protrudes from the center hole 31 of the annular guide plate 27 by the spring force of the biasing spring 28. At this time, the flange portion 29 b is received by the inner wall surface forming the guide plate 27 and the small guide portions 32 and 33 of the thumb turn seat 15.

  Therefore, when the operating member 11 is inserted from the through-hole 17 of the thumb turn cover 16 and the distal end surface of the fitting portion 11b hits the distal end portion 29a of the movable engagement member 29 in the middle, and the operating member 11 is inserted into the inner cylinder lock 12 as it is, it is movable. Although the engaging element 29 moves backward against the spring force of the biasing spring 28 for a moment, it returns by the spring force of the biasing spring 28 and presses the engaged portion 35 of the operating member in an engaged state. In this state, the operation member 11 can be turned in the locking direction or the unlocking direction. While the operation member 11 is rotating, the movable engagement element 29 is always engaged in the circumferential groove 35 of the operation member.

  On the other hand, when the operation member 11 is turned away from the thumb turn seat 15 or the inner cylinder lock 12, the operation mode is the reverse of the above, so that after the lock X is locked, the operation member 11 is removed from the thumb turn seat 15. When it is desired, the operation member 11 may be simply pulled out as it is.

  The embodiment in the previous column is referred to as a first embodiment, and in this column, another embodiment of the present invention will be described. In addition, the same code | symbol or the same code | symbol is attached | subjected to the part same as 1st Example, and the overlapping description is abbreviate | omitted.

  The thumbturn of the lock X1 of the second embodiment shown in FIGS. 8 and 9 is mainly different from the first embodiment in the operation member 11A and the thumbturn seat 15A. For example, as apparent from comparison between FIGS. 4 and 9 or FIGS. 3 and 8, the operation member 11 of the first embodiment has a key lock function, whereas the operation member 11A of the second embodiment It is a simple insertion type picking member. That is, the operation member 11A of the second embodiment has no stem portion. Therefore, the operation member 11A includes a knob portion 11a and a columnar insertion portion 11b protruding from the front surface of the knob portion 11a. A circumferential groove 35 is formed on the outer wall of the insertion portion 11b. For example, a cross-shaped fitting hole 37 is formed from the end face of 11b toward the knob 11a.

  Further, the thumb turn seat 15 of the first embodiment incorporates the inner cylinder lock 12, whereas the thumb turn seat 15A of the second embodiment does not have the inner cylinder lock 12. Therefore, the one end portion 19a of the thumb turn core 19A is a fitting end portion of the input shaft formed in a cross-shaped cross section as shown in FIG. 9, for example. And the site | part close | similar to this fitting edge part 19a is supported by the bearing 38 provided in the recess inside 15 A of thumb turn seats. On the other hand, the other end portion 19 b of the input shaft is engaged with the fitting hole of the dharma 20. In this embodiment, although the shapes of the thumb turn seat 15A and the thumb turn cover 16A are different, the main parts of the present invention are the same.

  Therefore, the operation member 11A can be extracted as it is through the engagement / disengagement relationship between the engaged portion 35 of the operation member 11A and the movable engagement element 29 incorporated on the thumb turn seat 15A side. One end 19a of the thumb turn core 19A does not necessarily have a cross-shaped cross section. It may be “cross-section minus shape”.

  In the thumb turn of the lock X2 of the third embodiment shown in FIGS. 10 to 12, the main difference from the first embodiment is that the thumb turn can be pulled out by picking only the knob 11a of the operation member 11B. The circumferential groove 35B in which the movable engagement element 29 is pressed against the seat 15B is formed, and on the other hand, the biasing spring 28 and the spring force of the biasing spring are inserted into the fitting portion 11b that is connected to the knob portion 11a of the operation member 11B. In other words, the movable engagement element 29 constantly biased outward in the radial direction is incorporated into the configuration opposite to that of the first embodiment.

  Accordingly, the annular guide plate 27B is fixed to the operation member 11B side, and a plurality of storage portions (storage grooves are formed by the guide plate 27B and the distal end portion of the insertion portion 11b of the operation member 11B and the guide plate 27B. 26B, 26B, the urging spring 28 and the movable engagement element 29 are incorporated so as to oppose each other in the left and right or up and down directions. Even if the configuration is replaced in this way, the same operation and effect as the first embodiment of the present invention are obtained. FIG. 12 is an explanatory diagram showing the operation of the third embodiment, but since it overlaps, its description is omitted.

1 to 7 are explanatory views showing a first embodiment of the present invention. 8 and 9 are explanatory views showing a second embodiment of the present invention. 10 to 12 are explanatory views showing a third embodiment of the present invention.
Schematic explanatory drawing which shows the environment from a plane. Schematic explanatory drawing which shows the attachment position of each member (when an operation member is inserted). Schematic explanatory drawing which shows the attachment position of each member (before inserting or pulling out the operation member). The perspective view of an operation member (a biasing spring and a movable engagement element are also included). The schematic sectional drawing by the side of a thumb turn seat. The schematic explanatory drawing which shows the main member (a biasing spring and a movable engagement element are also included) by the thumb turn seat side. Schematic explanatory drawing which shows the relationship between the operation member and the main member of the thumb turn seat side. Schematic explanatory drawing showing the second embodiment (when the operating member is inserted and withdrawn). The perspective view which shows the positional relationship of main members (a biasing spring and a movable engagement element are also included). Schematic explanatory drawing which shows 2nd Example (when an operation member is inserted). Schematic explanatory drawing which shows the structure of an operation member. Schematic explanatory drawing which shows the relationship between the operation member and the main member of the thumb turn seat side.

  X, X1, X2 ... lock, 1 ... door, 2 ... outdoor side, 3 ... indoor side, 8 ... lock case, 11, 11A, 11B ... operation member, 11a ... knob, 11b ... insertion part, 35, 35B ... Engagement part (groove), 37 ... fitting hole, 12 ... inner cylinder lock, 13 ... outer cylinder lock, 15, 15A, 15B ... thumb turn seat, 16, 16A ... thumb turn cover, 17 ... through hole, 18 ... connector 19 ... Thumb turn input shaft, 20 ... Dharma, 21 ... Support plate, 22 ... Fixed cylinder, 23 ... Drive shaft, 25 ... Space part, 26, 26B ... Storage part (storage groove), 27, 27B ... Annular guide plate, 28 ... biasing spring, 29 ... movable engagement element, 29a ... tip, 29b ... collar.

Claims (3)

In the thumb turn of a lock provided with a cylindrical thumb turn seat fixedly provided on a wall surface or a lock case of a door and an operation member to be removably inserted into the thumb turn seat, the tip end of the thumb turn seat Recesses having longitudinal storage grooves that oppose each other in the radial inward direction of the thumb turn seat are formed, and pin-like movable engaging members that are urged by urging means and that have flange portions are opposed to each other in the longitudinal storage grooves. Then, a guide plate that guides the movable engagement element is fixed to the distal end surface of the distal end portion, and the pin-shaped movable engagement element is formed on at least the guide plate or the distal end surface of the thumb turn seat. It is movable in a radial direction through the flange portion to be engaged with the guide portion, and, when inserting the said operating member to the thumb seat, a circumferential groove formed in the fitting portion of the operating member Serial pin-like movable engaging element engages simultaneously, whereas, when pulling the operating member, without multi-operation, the lock characterized in that it can be pulled out as thumb turn. The cylindrical connector according to claim 1, wherein a cylindrical connector is incorporated in the thumb turn seat together with the inner cylinder lock, and the outer cylinder lock is disposed coaxially with the thumb turn core connected to the connector. The lock thumb turn. In the thumb turn of the lock comprising a cylindrical thumb turn seat fixedly provided on the wall surface or the lock case of the door and an operation member to be removably inserted into the thumb turn seat, the inside of the tip of the thumb turn seat On the other hand, in the insertion portion connected to the knob portion of the operation member, the longitudinal guide grooves that are directed radially outward from each other are formed together with the small guide portions, and the biasing means is provided in each of the longitudinal storage grooves. A pin-like movable engagement member biased radially outward through a flange and having a flange portion is incorporated, and then an annular guide plate for guiding the movable engagement member is fixed to the distal end surface of the insertion portion, and the pin Jo movable engaging member is movable in a radial direction through the flange portion to be engaged with the small guide portion formed on a small guide portion or the insert portion is formed at least on the guide plate, and the Sumter When inserting the said operating member to the seat, the pin-like movable engaging element engages simultaneously in a circumferential groove of the thumb seat of the operation member, whereas, when pulling the operating member, without multi-operation, as it is A thumb turn of a lock that can be pulled out.

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