JP4464220B2 - Crescent tablets - Google Patents

Description

  The present invention relates to a crescent lock that is attached to a window of a house or a building as a locking device for preventing theft.

  References 1 and 2 include "a long box-shaped case main body, an operation handle that is rotatably attached to the case main body, a dial member that is rotatably integrated into the case main body, and an operation of the dial member. There is disclosed a “crescent lock provided with locking / unlocking means for preventing rotation of the operation handle in the locked state or allowing it in the unlocked state”.

  For example, a crescent lock disclosed in Document 1 includes a case main body fixed to a side wall of a sash, an operation lever rotatably attached to the case main body and having an engagement plate on a fitting projection shaft, A dial member that is separated and pivotally supported in the case main body, and that rotates a rotor having a recess on a peripheral side portion, and an engagement head is positioned between the dial member and the engagement plate A locking plate that is pivotally supported in the case body and that engages the engaging plate when the locking head is locked, and a locking plate that engages the rotor when unlocked, and the locking plate is always recessed in the rotor. A spring member appropriately provided in the case main body is provided so as to be urged in a certain direction.

  Therefore, when the dial member is arbitrarily turned to the locking position after engaging the spoon of the operation handle with the receiving metal fitting, the engagement plate of the shaft portion of the operation handle is locked so as not to rotate to the locking plate. The operation handle is locked.

However, if this kind of conventional crescent lock is used, for example, if the dial member is inadvertently turned to the locked position before the spoon of the operation handle is engaged with the catch of the outer shoji, can the operation handle be turned? Even if it can be turned, the rotation of the operation handle cannot be prevented in the locked state.
Utility Model Registration No. 2605365 Utility Model Registration No. 2603174

  The first object of the present invention is to disengage the operating handle before engaging the spoon of the outer shoji, for example after inadvertently turning the dial member to the locked position. Propose a crescent lock that can prevent the rotation of the operation handle in the locked state when the spoon is turned so that it engages with the catch of the outer shoji. The second purpose is to rationally incorporate each component into the case body. The third purpose is to guide the slide plate to move up and down stably.

The crescent lock of the present invention includes a long box-shaped case body, an operation handle that is rotatably mounted on the case body, a dial member that is rotatably assembled to the case body, and an operation of the dial member. In the crescent lock provided with the locking / unlocking means for preventing the rotation of the operation handle in the locked state or allowing it in the unlocked state, the locking / unlocking means 31 is engaged with and disengaged from the dial member 22. A driving arm 34 pivotally supported by the main body 1 and extending from one end engaged with the driving arm to a position where it can be engaged with the engagement plate 17 of the shaft 14 of the operation handle 12 in a face-to-face manner. Due to the sliding contact relationship between the slide plate 32 having a stopper 32c on the other arm-shaped other end portion guided by one side wall 8 of the case body and the other end portion and the engagement plate 17, the slide plate is moved vertically. moved Characterized in that it comprises a clutch spring 37a built in the wide guide portion 32a which is guided on the other side wall 9 of the scan body - the formed at one end and to case so as to elastically displaced or elastically return to.

In the above-described configuration, the clutch spring 37a is elastically displaced or elastically returned through the drive arm 34 .

(1) Before engaging the spoon of the outer handle with the outer shoji, for example, even after the dial member has been inadvertently turned to the locked position before engaging the spoon with the outer shoji. While being able to turn to engage with a metal fitting, rotation of an operation handle can be blocked in a locked state so that an operation handle cannot be returned.
(2) Since the constituent members are rationally incorporated in the case body, the space in the case body can be effectively utilized.
(3) In some embodiments having a plurality of guide portions, the slide plate moves up and down stably.

  Hereinafter, the best mode for carrying out the present invention shown in FIGS. 1 to 12 will be described.

(1) Basic components In FIGS. 1 to 12, X is a crescent with a dial lock (hereinafter referred to as “crescent lock”). The crescent lock X is roughly divided into constituent elements, and is a long box-shaped case body 1, an operation handle 12 that is rotatably attached to the case body 1, and a case body that is rotatably incorporated. A dial member 22 and an application member including an arm-like slide plate 32 and a drive member 33 (a drive arm 34, a clutch spring 35) that prevent the rotation of the operation handle in a locked state or allow the unlocked state based on an operation of the dial member. -It consists of unlocking means 31. Therefore, the following description will focus on the main parts of these constituent elements.

(2) Case main body The case main body 1 is formed in the shape of a long box with one side opening, and is fixed to the central portion of the side wall of the inner shoji in the vertical direction via a fastener. FIG. 1 shows a state in which the back plate is removed from the case main body 1, the dial member 22 is arbitrarily turned to the locking position with a finger, and then the operation handle 12 is turned to the engagement position indicated by the phantom line, As a result, the spoon 16 is engaged with a receiving metal fitting fixed to the side wall of the outer shoji, and at the same time, the one-armed slide plate 32 constituting the locking / unlocking means 31 is moved downward (stopper) by the elastic return force of the clutch spring 35. The projection stopper (left hand portion) 32c at the upper end of the slide plate 32 faces the bent projection 20 of the engagement plate 17 of the shaft portion of the operation handle 12, and the operation handle. 12 indicates that rotation of 12 has been prevented (handle lock state). In this handle lock state, the operation handle 12 cannot be rotated in the direction of arrow A (counterclockwise).

  Here, each site | part and attachment part of the case main body 1 are demonstrated based on FIG. Reference numeral 2 denotes an upper end portion (one end portion). On the upper end portion side, a first attachment hole is formed in the vertical (vertical) direction, or a block-like first attachment portion 3 having the first attachment hole is fixedly fitted. It is worn or formed in steps. On the other hand, reference numeral 4 denotes a lower end portion (the other end portion). A storage recess 5 for a dial member 22 and a wide portion (left shoulder portion) 32a of the one-armed slide plate 32 which will be described later is formed on the lower end side.

  Reference numeral 6 denotes a central portion (including a portion closer to the central portion). The central portion 6 has a second mounting hole formed in the vertical (vertical) direction, or a block-shaped second mounting portion 7 having the second mounting hole. It is fixedly fitted or formed in a stepped shape. For example, the block-shaped first mounting portion 3 and the second mounting portion 7 having long hole-shaped mounting holes are not particularly shown in cross section, but are formed in a thick shape, and are notched according to design needs. A hole for a spring support pin or the like is appropriately formed.

  8 is one side wall (the left side wall in FIG. 1), and the lower end portion of the left side wall 8 protrudes slightly outward in an arcuate shape 8a, and the arcuate protrusion 8a has an outer peripheral portion of the sign body of the dial member 22. A through-hole is formed through which the oozes out. On the other hand, reference numeral 9 denotes the other side wall (the right side wall in FIG. 1). The lower end of the right side wall 9 is formed in a stepped shape, or a stopper portion 9a is provided, and the stopper portion 9a has a wide portion of the slide plate 32. The lower end surface of 32a can contact | abut.

  Further, a portion bounded by the inner wall surface of the left side wall 8 of the case body 1, the lower end surface of the block-shaped first mounting portion 3 and the storage recess 5 is a protruding stopper portion (left-hand portion) of the one-armed slide plate. (Or a slender arm portion) 32b is a guide recess 10 into which a fitting is possible. In addition, the case body 1 is formed with an operating handle shaft hole and the like.

(3) Operation Handle An imaginary line shown in FIGS. 1 and 2 is an operation handle 12 in which a shaft portion is rotatably fitted in the mounting portion of the case body 1. The operation handle 12 includes an operation knob 13, a fitting protrusion shaft 14 that is connected to the distal end portion of the operation knob 13 and that fits into the shaft hole of the case body 1, and the fitting protrusion shaft 14 A semicircular arc shaped spoon (engagement portion) 16 is provided which is continuously provided on the outer side and engages with the receiving metal fitting 15 on the side wall of the external shoji.

  As shown in FIG. 3, the inner end portion of the fitting projection shaft 14 is formed in a square axis, and the engagement plate 17 is integrally fitted to the square shaft portion 14. The engagement plate 17 includes a non-circular fitting portion 19 having a square shaft hole 18, a protrusion 20 protruding from the peripheral wall of the fitting portion 19 in the axial hole (axial core) direction, And a spring end mounting portion 21 protruding in the axial hole direction from the vertical portion of the peripheral wall. In addition, since it is a detailed matter, although not specifically shown, the fixing tool is screwed onto the fitting projection shaft 14 via the seat plate so that the engagement plate 17 is not detached.

(4) Dial member The dial member 22 is shown in FIG.4 and FIG.5. The dial member 22 is incorporated in the housing recess 5 side of the lower end portion of the case body 1, and the outer peripheral portion of the operation portion body 24 having the mark 23 is always protruded from the arcuate protrusion 8 a of the one side wall 9. The case body 1 is pivotally supported by the case body 1. Accordingly, the dial member 22 is mounted on the case body 1 in a state where the dial member 22 is considerably separated from the fitting projection shaft 14 of the operation handle 12 and is offset toward the one side wall 8 as shown in FIG. .

  As shown in FIGS. 4 and 5, the dial member 22 includes an operation portion main body 24 having dial marks 23 such as “1” to “0” on the annular outer wall surface in this embodiment, and the operation portion main body. The engagement disk 25 is integrally fitted in a fitting recess 24 a formed on one side surface of the 24, and the donut-shaped rotor 26 is opposed to the engagement disk 25. On the inner peripheral surface of the projecting wall-shaped annular portion, a driving claw 27 is provided so as to face the shaft hole. On the opposite surface of the rotor 26, a driven claw 28 that can be engaged with the driving claw 27 is provided. Projected.

  In addition, one end portion of a drive arm 34 constituting the locking / unlocking means 31 can be engaged with and disengaged from the peripheral side portions of the drive-side engagement disk 25 and the driven-side rotor 26 constituting a part of the main body. Relief recesses 29 and 30 are formed, respectively.

  In the present embodiment, the dial member 22 is a combination of the engagement disk 25 of the dial member 22 and the rotor 26 having no mark, but the outer peripheral surface of the rotor 26 has “1” to “0”. The second dial member may be provided by providing a dial mark such as, and the outer peripheral portion of the second dial member may be exposed from the arc-shaped protrusion 8 a of the case body 1 in the same manner as the first dial member 22. . The dial member 22 is supported on the case body 1 as appropriate.

(5) Locking / unlocking means Locking / unlocking means 31 prevents the operation handle 12 from rotating in the locked state or allows the unlocked state based on the operation of the dial member 22 (FIGS. 7, 8, and 11). . Further, the locking / unlocking means 31 of the present embodiment turns the dial member 22 to the locking position and then turns the spoon of the operation handle 12 so as to engage with the receiving plate of the outer shoji. The slide plate 32 of the locking / unlocking means 31 disposed so as to move up and down is in sliding contact with the engagement plate 17 of the shaft portion 14 of the operation handle 12 and the elastic displacement or elasticity of the clutch spring 35 in the case body. The handle is locked so that the operation handle 12 cannot be returned by operating in relation to the return (FIG. 12). In particular, the latter configuration is a novel matter that has never been found in conventional crescent tablets.

  Therefore, the locking / unlocking means 31 of the present invention includes a drive arm 34 pivotally supported on the case body 1 so as to be engaged with and disengaged from the dial member 22, and a wide end portion engaged with the drive arm 34. A vertically long slide plate 32 having a projecting other end 32c extending from 32a to a position where it can come into contact with the engagement plate 17 of the operation handle 12, and a slide between the engagement plate 17 and the projecting other end 32c. When the slide plate 32 moves up and down due to the contact relationship, for example, a clutch spring 35 is provided on the slide plate 32 so as to be elastically displaced or elastically returned via the drive arm 34.

  In particular, the components of the application / unlocking means 31 will be described with reference to FIG. Reference numeral 32 denotes an arm-shaped slide plate 32 which is incorporated into the housing recess 5 and the vertical guide recess 10 of the case body 1 so as to be movable up and down. The arm-shaped slide plate 32 is formed in a single-arm shape including a shoulder portion 32a in the present embodiment.

  First, reference numeral 32 a denotes a wide guide portion of the left shoulder portion located in the storage recess 5, and the wide guide portion 32 a is a through hole with which the drive pin 36 of the other end of the drive arm 34 constituting the drive member 33 is engaged. A shaped engaged portion 37 is formed. The engaged portion 37 has, for example, a horizontal fitting hole 37a and a vertical engaging hole 37b communicating with the fitting hole 37a, and the driving member 33 is configured in the fitting hole 37a. A clutch spring (U-shaped leaf spring) 35 is fitted in such a manner that it can be elastically displaced or elastically restored. On the other hand, the driving pin 36 is inserted into the engagement hole 37b so as to ride on the upper part of the clutch spring 35. Yes. Although it is a detailed matter, the engaged portion 37 has a step surface that can stably support the clutch spring 35.

  Here, the configuration of the lever-like drive arm 34 will be described. The drive arm 34 is formed with a shaft hole for the horizontal shaft 41 horizontally mounted on the case main body 1 at the center, and the dial member 22 at one end (left side in FIG. 1) with respect to the shaft hole. An engagement head 39 that can be engaged with and disengaged from the relief recesses 29 and 30 is formed, and the drive pin 36 described above is fixedly provided at the other end (right side in FIG. 1).

  7 and 8, the central portion of the arm spring 38 is wound around the horizontal shaft 41, and one end of the arm spring 38 is supported by the engaging head 39 of the drive arm 34, The other end portion is supported by a spring end support portion 32 d that protrudes from the wide end portion 32 a of the slide plate 32.

  Accordingly, the drive arm 34 is urged by the arm spring 38 in a direction in which the engagement head 39 is always pressed against the peripheral surface of the dial member 22, and the engagement head 39 is released from the dial member 22. When engaged with the recesses 29, 30, the drive pin 36 at the other end lifts the slide plate 32. Therefore, when the dial member 22 is in the unlocked state (number coincidence), the arm spring 38 lifts the slide plate 32 via the drive arm 34 and separates the stopper portion 32c from the engagement plate 17 of the operation handle 12 (FIG. 8). .

  Next, 32b is a narrow arm-shaped guide portion provided continuously with the upper end portion of the wide guide portion 32a. The arm-shaped guide portion 32b is vertically contacted so as to be in sliding contact with the inner wall surface of one side wall 8a. Located in the guide recess 10. Therefore, when the arm-shaped slide plate 32 of this embodiment moves in the vertical direction, the arm-shaped guide portion 32b is stably guided by the wide guide portion 32a slidably contacting the inner wall surface of the other side wall 9a.

  Next, reference numeral 32c denotes a protruding stopper portion (left hand portion) provided continuously with the upper end portion of the arm-shaped guide portion 32b, and the stopper portion 32c functions when it faces the protruding portion 20 of the engagement plate 17 of the operation handle 12. (Operating handle rotation prevention function)

(6) Other Configurations As shown in FIG. 1, the end portion of the tension spring 42 is attached to the spring end attachment portion 21 of the engagement plate 17 and the support pin 43 provided on the case body 1 side. The position of the upper end of the pulling spring 42 is switched between right and left when the operating handle 12 is rotated in the engaging direction (FIG. 2) and when it is rotated in the non-engaging direction (FIG. 10). The pulling spring 42 is desirably provided so as to easily turn the operation handle 12 to a predetermined position (vertical locking position, vertical unlocking position). That is, when the spoon 16 of the operation handle 12 is engaged with the metal fitting 15 or when the spoon 16 is detached from the metal fitting 15, the pulling spring 42 is present, so that halfway engagement / disengagement is prevented as much as possible. can do.

(7) Action: Locking Description will be made focusing on the features of the present invention. As already explained in the section of “(2) Case body”, FIG. 1 shows a state in which the dial plate 22 is arbitrarily turned to the locking position with a finger in a state where the back plate is removed from the case body 1. The operation handle 12 is turned to the engagement position indicated by the phantom line. As a result, the spoon 16 is engaged with the receiving metal fitting fixed to the side wall of the outer shoji, and at the same time, the one-arm shape constituting the application / unlocking means 31 The slide plate 32 automatically slides downward (stopper position) by the elastic return force of the clutch spring 35, and the protruding stopper portion (left hand portion) 32 c at the upper end portion of the slide plate 32 is attached to the shaft portion of the operation handle 12. It shows that it came to the state which faced the bending-shaped projection part 20 of the engagement board 17, and prevented rotation of the operation handle 12 (handle lock state).

  FIG. 12 shows the above description dynamically. In FIG. 12, the left diagram shows the dial member 22 in a locked position (here, the engagement head 39 of the drive arm 34 is a relief recess 29), for example, by carelessness (of course, it may be conscious). Or / and 30 indicates that the operation handle 12 is turned in the direction of arrow B. At this time, the engagement plate 17 rotates in the direction of arrow B together with the operation handle 12.

  Next, the intermediate drawing shows a state in which the operation handle 12 is further rotated, the knob portion 13 continues to move to the 11 o'clock direction, and the spoon 16 is engaged with the receiving metal fitting 15. At this time, since the protrusion 20 of the engagement plate 17 is slidably engaged with the inner arcuate surface of the stopper portion 32 c of the slide plate 32, the slide plate 32 resists the spring force of the clutch spring 35 by the protrusion 20 of the engagement plate 17. And lifted in the direction of arrow C. Since the clutch spring 35 is sandwiched between the other end of the drive arm 34 that is regulated at a predetermined position by the dial member 22 and the hole edge surface of the engaged portion 37 of the slide plate 32, the slide plate 32 is raised. Then, elastic displacement occurs.

  Finally, the drawing on the right side shows a state in which the operation handle 12 is further rotated, the knob 13 is in a substantially vertical state, and the spoon 16 is completely engaged with the receiving metal fitting 15. At this time, since the protrusion 20 of the engagement plate 17 has passed the inner arcuate surface of the stopper 32c, the clutch spring 35 is elastically restored. Then, the slide plate 32 is lowered in the direction of the arrow D by the spring force of the clutch spring 35, and the stopper portion 32c and the protruding portion 20 of the engagement plate 17 are in a face-to-face state. This is the handle lock state of the locking / unlocking means 31 for the operation handle 12. In this handle lock state, the operation handle 12 cannot be returned in the direction of arrow A (counterclockwise) (the spoon 16 cannot be removed from the metal fitting 15).

(8) Action: Unlocking FIGS. 9 and 10 show unlocking in a state where the operation handle is allowed to rotate. When the dial member 17 is turned left or right with a finger based on the password for the purpose of unlocking, the drive arm 34 of the drive member 33 is actuated in the unlocking direction by the spring force of the arm spring 38. In this embodiment, when the passwords match, the drive arm 34 of the drive member 33 rotates a predetermined amount in the counterclockwise direction about the horizontal axis 41, so that the slide plate 32 is driven by the spring force of the arm spring 38 and the drive arm. It is pushed up through the other end of 34. At this time, the engagement head 39 of the drive arm 34 engages with the relief recesses 29 and 30 of the dial member 22, while the stopper portion (left hand portion) 32 c of the slide plate 32 is on the engagement plate 17 of the operation handle 17. It leaves | separates from the projection part 20. FIG. Therefore, the spoon 16 of the operation handle 17 can be rotated in the direction of removing it from the metal fitting 15. At this time, since the tension spring 42 exists, the operation handle 17 rotates to the vertical position completely (FIG. 10).

  In the example shown in the embodiment of the invention, the clutch spring 35 of the drive member 33 is provided in the engaged portion 37 of the slide plate 32. It may be provided at a location. The essential matter of the present invention is that the operation handle 12 is rotated in the direction of the handle lock even if the dial member 22 is arbitrarily rotated in a state where the spoon 16 of the operation handle 12 is disengaged from the receiving bracket 15, and Since the rotation of the operation handle 12 can be prevented from being locked, the details can be changed in design.

  The present invention is mainly used in the locksmith and joinery industries.

1 to 12 are each explanatory views showing the best embodiment of the present invention.
The schematic explanatory drawing of the state which blocked | prevented rotation of the operation handle in the locked state. In FIG. 1, it is explanatory drawing which shows the positional relationship of the engaging plate of an operation handle, and the stopper part of a slide plate. The disassembled perspective view which shows the relationship between the axial part of an operation handle, an engagement board, and a tension spring. The perspective view which shows an example of a dial member. Explanatory drawing which shows the combination of a dial member. The disassembled perspective view of an application / unlocking member. Schematic explanatory drawing when a dial member is turned to a locking position. Schematic explanatory drawing when a dial member is turned to an unlocking position (number coincidence). The schematic explanatory drawing of the state which became the unlocking position (number coincidence) and removed the spoon of the operation handle from the metal fitting. In FIG. 9, it is explanatory drawing which shows the positional relationship of the engaging plate of an operation handle, and the stopper part of a slide plate. Explanatory drawing when a dial member is turned in the state in which the spoon is engaged with the receiving metal fitting. Schematic explanatory drawing which turned the operation handle to the handle lock state after turning the dial member to the locking position.

X ... Crescent lock, 1 ... Case body, 2 ... Upper end, 4 ... Lower end, 10 ... Guide recess, 12 ... Operation handle, 13 ... Operation knob, 14 ... Fitting projection shaft, 15 ... Receiving bracket , 16 ... Spoon (engagement part), 17 ... Engagement plate, 18 ... Shaft hole, 19 ... Fitting part, 20 ... Projection part of engagement plate, 21 ... Spring end attachment part, 22 ... Dial member, 23 ... Dial indicator , 24 ... operation unit main body, 25 ... engagement disk, 26 ... rotor, 27 ... drive claw, 28 ... driven claw, 29, 30 ... relief recess, 31 ... locking and unlocking means, 32 ... slide plate, 32a ... one end, wide part (left shoulder part), 32c ... other end part, protruding stopper part (left hand part), 33 ... driving member, 34 ... driving arm, 35 ... clutch spring, 36 ... driving pin, 37 ... covered Engaging part, 38 ... arm spring, 39 ... engaging head.

Claims (2)

A long box-shaped case body, an operation handle that is rotatably mounted on the case body, a dial member that is rotatably mounted on the case body, and the operation handle is rotated based on an operation of the dial member. In the crescent lock provided with the locking / unlocking means that permits the locking or unlocking state, the locking / unlocking means 31 is pivotally supported on the case body 1 so as to be engaged with and disengaged from the dial member 22. The drive arm 34 extended from one end engaged with the drive arm to a position where the drive arm 34 can be engaged with the engagement plate 17 of the shaft portion 14 of the operation handle 12 in a face-to-face manner. Due to the sliding contact relationship between the slide plate 32 having the stopper 32c at the other end portion of one arm guided by the side wall 8 and the other end portion and the engagement plate 17, the slide plate moves in the vertical direction. Elastic recovery It is formed on the one end to and Ke - Crescent tablet which comprises a clutch spring 37a built in the wide guide portion 32a which is guided on the other side wall 9 of the scan body.
The crescent lock according to claim 1, wherein the clutch spring 37a is elastically displaced or elastically returned through the drive arm 34 .

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