JP2007063841A - Crescent lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crescent lock having excellent operation characteristics and high design performance. <P>SOLUTION: The crescent lock can connect a movable door 1 such as double sliding doors or a sliding door to a lock base 2 on the periphery to restrain the movable door 1 from being opened. The crescent lock is provided with an operation handle 5 for turning a crescent locking section 4 to be engaged with and disengaged from a crescent accepter 3 secured on a connection object matter, and an operation protrusion 6 protruded in parallel with the rotation axis of the crescent locking section 4 is provided in the vicinity of the free end of the operation handle 5. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a crescent tablet.

  As a crescent lock fixed to one side of a window sash or the like and engaged with and disengaged from a crescent receiving member fixed to the other sash, the one disclosed in Patent Document 1 is known. In this conventional example, the crescent lock is formed by integrally projecting an operation lever (operation handle portion) on an engagement piece (crescent locking portion) that engages and disengages with the crescent receiver.

The operation of the crescent lock is performed, for example, by picking or hooking the operation handle with a finger and rotating the operation handle.
Utility Model Registration No. 2603174

  However, in the above-described conventional example, in order to operate the operation handle portion, a sufficient gap for inserting a finger or the like is set between the operation handle portion and the sash surface on the side where the crescent receiver is fixed. Therefore, there is a drawback that the design freedom of the operation handle portion is small.

  The present invention has been made to eliminate the above-described drawbacks, and an object of the present invention is to provide a crescent tablet that has good operability and can enhance design freedom.

According to the present invention, the object is
A crescent lock for connecting a movable door 1 such as a sliding door or a hinged door to a peripheral locking base 2 and restricting the opening of the movable door 1,
An operation handle portion 5 for rotating the crescent locking portion 4 to be engaged with and disengaged from the crescent receiver 3 fixed to the connection target;
This is achieved by providing a crescent lock provided with an operation protrusion 6 that protrudes in a direction substantially parallel to the rotational axis of the crescent lock 4 near the free end of the operation handle 5.

  The crescent lock that is locked to the counterpart crescent holder 3 by the crescent locking portion 4 and is connected to the locking base 2 such as the window frame or another adjacent sliding door is locked by the crescent locking portion 4. An operation handle portion 5 for facilitating the rotation operation is provided. The operation handle portion 5 may be integrally extended from the crescent locking portion 4 or may be one that is formed separately and fixed to the crescent locking portion 4.

  The operation handle portion 5 is provided with an operation protrusion 6 that protrudes in a direction substantially parallel to the rotational axis of the crescent locking portion 4. By projecting the operation projection 6 on the operation handle 5, the operation projection 6 can be picked up with fingers sandwiched from above and below, and the operation handle 5 can be rotated in the picked state. become. As a result, in the above-described conventional example, since the rotation operation force is only applied to the operation handle portion 5 by hooking a finger on the free end of the operation handle portion 5, the sash and the free end of the operation handle portion 5 are provided. While it is necessary to set a sufficient gap for the finger to enter between the surface and the surface, in the present invention, it is not necessary to consider the operation on the operation handle portion 5, and the degree of design freedom is improved.

Crescent tablets
A crescent lock for connecting a movable door 1 such as a sliding door or a hinged door to a peripheral locking base 2 and restricting the opening of the movable door 1,
An operation handle portion 5 for rotating the crescent locking portion 4 to be engaged with and disengaged from the crescent receptacle 3 fixed to the connection target;
A lock portion 7 for restraining the free end portion of the operation handle portion 5 and prohibiting the rotation operation on the crescent locking portion 4;
In addition, the operation handle portion 5 can be configured to be provided with an operation protrusion 6 that protrudes in a direction substantially parallel to the rotational axis of the crescent locking portion 4 at the free end portion.

  In general, when the operation to the operation handle portion 5 is restricted by the lock portion 7, the movement of the free end portion is restricted because it is not necessary to incorporate a restriction mechanism inside the operation handle portion 5. Can be made relatively simple. On the other hand, when a rotational operation force is applied to the operation handle, it is easy to operate using the free end portion of the operation handle portion 5 as a finger hook, and the free end portion of the lock portion 7 is used as a finger hook at the time of this locking / unlocking operation. When the restriction target portion is used, the operability during the rotation operation is lowered.

  In order to solve this, it is possible to configure the lock part 7 to be retracted to a position where it does not get in the way for hooking when the restraint is released. In this case, the structure of the lock part 7 is It becomes complicated.

  On the other hand, in the present invention in which the operation protrusion 6 is provided at the free end of the operation handle portion 5, the free end of the operation handle portion 5 can be a restraint object in the lock portion 7, and the operation There is no loss of sex.

  According to the present invention, it is possible to improve design freedom while maintaining good operability.

  1 and 2 show a crescent lock attached to a sliding door. The crescent lock includes a crescent locking portion 4 that is rotatably connected to the casing 9, an operation handle portion 5 that is connected to the crescent locking portion 4, and a lock portion 7 that is incorporated in the casing 9.

  This crescent lock is fixed to the side wall of one sliding door (movable door 1) on the indoor side, and a hook-shaped crescent receptacle is provided on the opposite side wall of the other sliding door (locking base 2) located outside the room. 3 is fixed. A packing 10 is interposed on the fixed surface of the casing 9 to the movable door 1.

  The crescent locking portion 4 has a rising locking piece 4a having a predetermined curvature, and locks to the crescent receiver 3 at the locking rotation position shown in FIGS. 2 (a) and 2 (b). When the crescent locking part 4 is rotated to the unlocking rotation position shown in FIG. 2 (c), the rising locking piece is detached from the crescent receiver 3 and the movable door 1 can be opened.

  As shown in FIGS. 3 and 4, the casing 9 includes a first case 9 a and a second case 9 b that is fixed to the first case 9 a. In the lower half of the first case 9a (hereinafter, the side on which the dial lock is disposed is referred to as “upper” and the side on which the crescent locking portion 4 is disposed is referred to as “lower” in the present specification). Fixed. A set plate 12 is fixed to the base plate 11, and a mounting hole 12 a opened in the set plate 12 has a front side (hereinafter, the mounting direction of the casing 9 to the movable door 1 is referred to as “front side” in this specification, and the opposite side It is fixed to the movable door 1 using a mounting screw 13 inserted from “back side”. The mounting hole 12a is formed in a vertically long oval shape so that the vertical mounting position can be adjusted, and the set plate 12 is formed on the base plate 11 in order to allow fine adjustment of the horizontal mounting position. On the other hand, it is mounted so as to be movable in the lateral direction.

  A pivot 14 is erected on the first case 9a so as to be rotatable. As shown in FIG. 3A, the pivot 14 is formed by extending a cylindrical portion 14b from the lower end surface of the prismatic portion 14a, and further, a small determination surface portion 14c is formed at the lower end of the cylindrical portion 14b. The pivot 14 is mounted by inserting a cylindrical portion 14b from the surface side into a shaft insertion hole 9c provided in the first case 9a, and a flanged fastener 15 is screwed into a screw hole 14d formed in the pivot 14. It is prevented from coming off.

  Reference numeral 16 denotes a click plate disposed so as to be sandwiched between the back surface of the first case 9a and the flanged fastener 15 and is fitted to the small judgment surface portion 14c of the pivot 14 to restrict idling relative to the pivot 14. Is done. The click plate 16 includes a spring hooking piece 16a that protrudes on the back surface side. Both ends of the click plate 16 are connected to the spring hooking piece 16a and a protrusion 9d that protrudes from the back surface of the first case 9a, and a tension spring 17 is attached. The

  The tension spring 17 is mounted to urge the pivot 14 toward one of the stroke end rotation positions of the operation handle portion 5 described later. That is, when the pivot 14 is rotated counterclockwise in FIG. 4B from the locking rotation position shown in FIG. 4B to shift to the unlocking rotation position, or rotated in the reverse direction to lock from the unlocking rotation position. When shifting to the rotational position, the amount of deflection of the tension spring 17 is maximized at the stroke center point (P). For this reason, the center point (P) becomes a thought point. When the pivot 14 slightly swings to any of the locking and unlocking rotation positions from this state, the pivot 14 is forcibly driven to the end position of the rotation stroke by the elastic restoring force of the tension spring 17. Is done.

  The above-mentioned crescent locking part 4 and the operation handle part 5 are connected to the pivot 14. The crescent locking portion 4 and the operation handle portion 5 are connected to the pivot shaft 14 so as not to idle by fitting the rectangular column portion 14a of the pivot shaft 14 into the rectangular holes 4b and 5b respectively opened.

  The rectangular hole 5b of the operation handle portion 5 is formed on the back surface of one end portion of the operation handle portion 5, and is laminated and fixed on the crescent lock portion 4 so that the crescent lock portion 4 is sandwiched between the front wall of the first case 9a. Is done. On the surface of the other end of the operation handle portion 5, a cylindrical operation protrusion 6 is projected in a direction parallel to the pivot 14. As described above, the position of the operation protrusion 6 can be freely set because it can be picked with a finger. However, as shown in FIGS. If it is arranged at a position where a sufficient gap for a finger or the like is formed between the surface and the surface of 2, the operation protrusion 6 can be hooked with the finger and rotated, so that the operability is further improved. . Further, as shown in FIGS. 3 and 4, the operation handle portion 5 is provided with a lateral hole 5a, which passes through the lateral hole 5a and is removed by a pin 18 which is driven into a pin press-fitting hole 14e formed in the pivot shaft 14. Stopped.

  Further, as shown in FIG. 3, a stroke restricting protrusion 19 is provided on the surface wall of the first case 9 a, and a stroke restricting recess 20 is provided on the back surface of the operation handle portion 5. In this embodiment in which the stroke between the locking and unlocking rotation positions is set to 180 °, the stroke restricting recess 20 is formed in a range in which the stroke restricting projection 19 can be rotated 180 ° around the rotation center of the pivot 14.

  Therefore, in this embodiment, when the operation handle is rotated using the operation protrusion 6, the crescent locking portion 4 rotates via the pivot 14. When the distance between the pivot 14 and the operating projection 6 is suitably set, the crescent receptacle 3 can be engaged and disengaged with a small operating force. The operation handle 5 can be operated in various ways, such as when the operation protrusion 6 is caught with a finger, or the lower surface of the operation protrusion 6 is supported with a finger, in addition to hooking the operation protrusion 6 with a finger. It can carry out in the aspect of.

  The second case 9b is fixed so as to cover the upper half surface of the first case 9a, and the lock portion 7 is accommodated therein. In order to obtain the design uniformity, the second case 9b is formed such that the outer periphery becomes an extended surface of the operation handle portion 5 at the locking rotation position.

  As shown in FIGS. 3 and 5, the lock portion 7 is configured as a dial lock, and has a lock shaft 21 having a circular cross section which is long in the vertical direction, a dial sleeve 22 mounted around the lock shaft 21, and mounted around the dial sleeve 22. Dial 8 to be used. A hemispherical locking end 21 a is formed at the lower end of the lock shaft 21 and is locked to a locking recess 23 formed at one end of the operation handle portion 5. The lock shaft 21 is urged by a shaft urging compression spring 24 in a direction in which the locking end 21 a protrudes toward the locking recess 23.

  Locking and unlocking in the lock portion 7 is performed by regulating and allowing movement of the lock shaft 21 in the longitudinal direction according to the rotation angle of the dial 8. That is, the lock shaft 21 is movable in the longitudinal direction in the unlocked state, and the engaging end 21a is engaged with the locking recess 23 by the biasing force of the shaft biasing compression spring 24 as shown in FIG. Stop and restrict the inadvertent rotation of the operation handle portion 5. In this state, when a clockwise rotational operation force in FIG. 3A is applied to the operation handle portion 5, the operation handle portion 5 is pushed by the inner inclined surface 23 a of the locking concave portion 23, so that the lock shaft 21 moves upward, that is, the locking concave portion. A component force in the unlocking direction with respect to 23 is generated. As a result, the operation handle portion 5 can rotate while pushing the lock shaft 21 upward against the reaction force of the shaft biasing compression spring 24.

  Further, when the operation handle 5 is rotated from the unlocking rotation position to the locking rotation position, the outer inclined surface 23b of the locking recess 23 having a mountain shape in cooperation with the inner inclined surface 23a moves the lock shaft 21 upward. Push and move to the locked state.

  On the other hand, when the lock portion 7 is in the locked state, the operation handle portion 5 cannot be rotated because the retreating movement from the locking position with the locking recess 23 is prohibited.

  In order to control the movement of the lock shaft 21, the lock shaft 21 is provided with a stopper projection 21b, and the dial sleeve 22 is provided with a lock notch 22a through which the stopper projection 21b can be inserted. On the outer periphery of the dial 8, numerals 8 a such as numerals are displayed at appropriate pitches (see FIG. 1B). A part of these codes 8a is exposed to the outside from the window 25 formed in the first case 9a and the second case 9b, and a predetermined code (unlocking code) is displayed from the window 25. It can be in an unlocked state.

  A concave groove 8 b is formed on the outer periphery of the dial 8 to distinguish between the reference numerals 25. As shown in FIG. 5A, the first case 9a holds a click plate 26 having a locking claw 26a that elastically locks in the concave groove 8b on the outer periphery of the dial 8 to stop the dial 8 moderately. .

  As shown in FIGS. 5B and 5C, the dial sleeve 22 and the dial 8 that is fitted outside the dial sleeve 22 are arranged on the dial 8 side with a fitting protrusion 22 b that protrudes from the outer periphery of the dial sleeve 22. Are fitted in the fitting groove 8c and connected in the rotational direction. The dial sleeve 22 is pressed against the dial 8 side by a sleeve biasing compression spring 27 interposed between the dial sleeve 22 located at the lowermost end and the casing 9, and the fitting protrusion 22b and the fitting groove The fitting state with 8c is maintained. If the rotational position of the dial 8, that is, the rotational position of the dial sleeve 22 is set, the rotational position of the lock notch 22 a is the rotational position of the stopper protrusion 21 b of the lock shaft 21 as shown in FIG. The lock shaft 21 can be moved in the longitudinal direction (unlocked state).

  On the other hand, when the rotational position of the dial 8 is not the set position, the stopper protrusion 21b of the lock shaft 21 does not coincide with the lock notch 22a of the dial sleeve 22, and the lock shaft 21 is moved upward, that is, the operation handle 5 When it is intended to move in the direction in which the locking recess 23 is released, it comes into contact with the lower end surface of the dial sleeve 22. Since the movement of the dial 8 in the longitudinal direction of the lock shaft 21 is restricted and the upward movement of the dial sleeve 22 is prevented by the dial 8 as shown in FIG. Is restricted from moving upward and is prohibited from being unlocked from the locking recess 23 (locked state).

  Furthermore, a code change button 28 is disposed on the upper end of the lock shaft 21 in order to make it possible to change the unlocking code of the lock unit 7. At the lower end of the cord change button 28, an operating leg 28 a that protrudes through the leg insertion hole 21 d formed in the flange 21 c formed at the upper end of the lock shaft 21 and reaches the upper end surface of the dial sleeve 22 is projected. The Further, as shown in FIG. 5 (d), at the lower end of the dial sleeve 22, an anti-rotation notch 22c that is directly opposed to the anti-rotation protrusion 9e protruding from the first case 9a at the unlocking rotational position is formed. .

  The upper end of the cord change button 28 is exposed to the outside through a cord change opening 9f provided in the casing 9, and when the dial 8, more precisely, the dial sleeve 22 is in the unlock rotation position, FIG. Can be pushed into the casing 9 as shown in FIG. By pressing the cord change button 28, the dial sleeve 22 is pushed downward, and the rotation prevention notch 22c is fitted to the rotation prevention projection 9e, and thereafter, the rotation is restricted. At the same time, the fitting between the fitting protrusion 22b of the dial sleeve 22 and the fitting groove 8c of the dial 8 is released, and the dial 8 can be idled.

  In this state, when the dial 8 is rotated to an appropriate rotation angle and then the pushing force to the cord change button 28 is released, the fitting protrusion 22b of the dial sleeve 22 is moved by the restoring force of the sleeve biasing compression spring 27. It fits in the new fitting groove 8c and returns to the original position. By changing the fitting position of the fitting protrusion 22b, the relative rotational position of the dial 8 and the dial sleeve 22 changes. Thereafter, the reference numeral 8a displayed on the display window at the time of fitting with the dial sleeve 22 is solved. It becomes a lock code.

It is a figure which shows this invention, (a) is a front view, (b) is a right view. It is a figure which shows the attachment state of a crescent lock, (a) is a front view, (b) is a 2B direction arrow directional view of (a), (c) is a front view which shows an unlocking state. It is sectional drawing of a crescent tablet, (a) is the sectional view on the 3A-3A line of (b), (b) is the sectional view on the 3B-3B line of (a). It is sectional drawing which shows the attachment state of an operation handle part, (a) is a side view which cuts and shows the attachment part of an operation handle part, (b) is a 4B direction arrow directional view of (a) shown by removing packing. . 3A is a cross-sectional view taken along line 5A-5A in FIG. 3A, FIG. 3B is a cross-sectional view taken along line 5B-5B in FIG. 3A, and FIG. FIG. 4D is a cross-sectional view of a main part taken along line 5C-5C in FIG. 3A. 3A is a cross-sectional view taken along line 6A in FIG. 3A, FIG. 3B is a cross-sectional view taken along line 6B-6B in FIG. 6A, and FIG. It is a figure corresponding to Drawing 3 (a) showing chord change operation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Movable door 2 Locking base 3 Crescent receptacle 4 Crescent locking part 5 Operation handle part 6 Operation protrusion 7 Lock part 8 Dial

Claims (3)

A crescent lock that connects a movable door such as a sliding door or a hinged door to the peripheral locking base and regulates the opening of the movable door,
An operation handle portion for rotating the crescent locking portion that engages and disengages with the crescent receptacle fixed to the connection target;
In the vicinity of the free end of the operation handle portion, a crescent lock is provided with an operation protrusion that protrudes in a direction substantially parallel to the rotational axis of the crescent lock portion. A crescent lock that connects a movable door such as a sliding door or a hinged door to the peripheral locking base and regulates the opening of the movable door,
An operation handle portion for rotating the crescent locking portion to be engaged with and disengaged from the crescent receptacle fixed to the connection target;
A lock portion that restrains the free end portion of the operation handle portion and prohibits a rotation operation on the crescent locking portion;
In addition, the crescent lock is provided with an operation protrusion that protrudes in a direction substantially parallel to the rotational axis of the crescent locking portion at the free end of the operation handle portion. The crescent lock according to claim 2, wherein the lock portion is a dial lock provided with an appropriate number of dials that are unlocked when being rotated to a predetermined rotation position.