JP2012237121A - Cylinder lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cylinder lock in which convenience for right open and for left open can be switched easily in mounting to a door.SOLUTION: In a cylinder lock 1, a lock case 2 is accommodated within a plate thickness of a door a. A cylinder body 3 is disposed at an outdoor side of the door and a thumb turn is disposed at an indoor side of the door. Between the cylinder body 3 and the thumb turn, there are provided a tail piece 5 and a tail plate for operating the cylinder body 3 and the thumb turn. A latch bolt 8 of the lock case 2 is locked and unlocked by a turning operation of the cylinder body 3 using a key and a turning operation of the thumb turn. The tail piece 5 is structured separately from the cylinder body 3 so as to deal with a difference of convenience for opening the door to right and to left when mounting and assembling the cylinder lock 1 to the door. The tail piece 5 includes a display section 34 which instructs a direction to be turned toward a door end side in mounting to a right-opening door and a display section 35 which instructs a direction to be turned toward the door end side in mounting to a left-opening door.

Description

  The present invention relates to a cylinder lock that can lock an openable / closable door in a closed position, and more specifically, for interiors that can easily switch between left and right sides according to the difference between left and right sides of a door to be attached. It relates to cylinder locks.

  A well-known interior cylinder lock for locking a door is configured such that a lock case is accommodated within the thickness of the door, and a latch bolt that protrudes and protrudes from the door end side surface of the door is provided on the lock case. The thumb turn is placed on the inside of the cylinder body and the door and connected to each other, and the tail piece provided to rotate integrally with the cylinder and the thumb turn are connected to the cylinder body with the tail plate. By interlocking with the cylinder cam in the lock case in the rotation direction, the cylinder cam is rotated by the rotation operation with the key of the cylinder in the cylinder body and the rotation operation of the knob in the thumb turn, so that the latch bolt of the lock case is It is designed to lock and unlock.

  Such cylinder locks generally have a structure in which the cylinder cam rotates 90 ° to the door butt when locking and unlocking. Therefore, on the cylinder body side, the key insertion / removal position and the thumb turn idling operation are performed. The assumed structure is adopted, and therefore, the left and right sides of the cylinder lock are generated.

  That is, as the structure of the cylinder body, the disk cylinder has two key removal positions. However, if the key is removed at the 180 ° rotation position, a malfunction occurs in which the thumb turn cannot be rotated.

  Further, if the thumb turn idle structure is not provided, the thumb turn cannot be rotated unless the key is inserted.

  As described above, the conventional interior cylinder lock has a structure in which the tail piece is fixed and integrated with the cylinder body, so that the direction to the left and right sides of the door is generated. There is an inconvenience that you have to make a product.

  Accordingly, an object of the present invention is to provide a cylinder lock that can be easily switched between left and right by making the tail piece a separate structure from the cylinder body and selecting the direction in which the tail piece is assembled when attaching to the door. There is to do.

  In order to solve the above problems, the present invention accommodates a lock case within the thickness of a door, arranges a cylinder body on the outside of the door and a thumb turn on the indoor side of the door, and A tail piece and a tail plate for operating the cylinder main body and the thumb turn are provided, and a latch bolt provided on the tail plate and the lock case is interlocked to rotate the cylinder main body with a key and a thumb turn. In the cylinder lock that locks and unlocks the latch bolt of the lock case by operation, the cylinder body can be attached to the cylinder body so that it can cope with the difference in opening and closing of the door when the cylinder lock is attached to the door. On the other hand, the tailpiece has a separate structure, and when the tailpiece is attached to the door, it can be opened left and right. The tailpiece is instructed to indicate the direction toward the door-end when attaching to the right-open door and the direction toward the door-end when attaching to the left-open door so that the arrangement corresponds to a different door The display part to provide is provided.

  The tailpiece is formed by surrounding a circular end wall with a cylindrical wall and a flange on the outer periphery of the cylindrical wall so as to be fitted around the cylindrical end of the cylinder in the cylinder body. A cylinder and a rotating engagement piece are provided on the circumference, two engagement holes for inserting the tail plate are formed in the circular end wall at a right angle, and the display portion is formed on the surface of the flange. It can be set as the structure provided by arrangement | positioning according to the position of the opening part length direction of a hole.

  Further, the display unit may be formed by engraving arrows, and the arrows may be arranged in opposite directions.

  Here, a pair of torque transmission protrusions are provided on both sides of the cylinder body at the circular shaft end portion of the cylinder body so as to sandwich the shaft center, and the pair of engagement pieces provided on the cylinder wall of the tail piece that fits externally on the cylinder is torque. The tail piece is accommodated between the transmission protrusions, and the tail piece is rotated by 90 ° left and right by rotating the cylinder 180 ° left and right with play in the rotation direction, and this is transmitted to the tail plate.

  This tailpiece is rotatably inserted into a circular mounting hole provided in the door, and is connected to a cylinder plate in the lock case so as to rotate integrally with a tail plate inserted through the engagement hole. When inserting the piece, turn the tailpiece in the direction of rotation, and insert it so that the arrow on the display section located on the lower side faces the door end. In this state, the tail is inserted into one vertical engagement hole. When the plate is inserted vertically and the wide head provided at the end of the tail plate fits in the engagement hole with the bottom, the tail piece and the tail plate are coupled in the rotational direction, and the tail piece is attached to the door. It will be covered with the installed cylinder body.

  In this way, when attaching the tailpiece to the door, if the arrow is directed to the door end side and the tail plate is inserted into one vertical engagement hole, the right and left sides of the door can be prevented. Therefore, it is possible to cope with the change of the 90 ° mounting direction and to easily switch between the left and right sides.

  According to this invention, the lock case is accommodated within the plate thickness of the door, the cylinder body is disposed outside the door and the thumb turn is disposed on the indoor side of the door, and the rotation operation by the key of the cylinder body and the rotation operation of the thumb turn are performed. In the cylinder lock that locks and unlocks the latch bolt of the lock case, the tail piece is a separate structure from the cylinder body, and the tail piece is attached to a door that has different left and right sides. In addition, a display unit is provided to indicate the direction toward the door end side, so that the right and left sides of the cylinder lock can be easily switched by selecting the tailpiece installation direction according to the instructions on the display unit when attaching to the door. It can cope with the difference between left and right doors.

The partially cutaway front view seen from the outdoor side which shows the attachment state to the right-hand door of the cylinder lock which concerns on this invention The cross-sectional top view which expanded the principal part of the cylinder lock concerning this invention The principal part notch side view which looked at the cylinder lock concerning this invention from the front plate side (A) is a longitudinal front view taken along arrow aa of FIG. 3 in which the relationship between the cylinder body and the tail piece of the cylinder lock according to the present invention is enlarged, and (b) is an enlarged view showing the relationship between the tail piece and the tail plate. Longitudinal front view at 3 arrow bb The perspective view which decomposed | disassembled the principal part which shows the attachment state to the door of the cylinder lock of this invention (A) is the perspective view which notched a part of tail piece, (b) is a front view which shows the integration state of the tail piece with respect to the left-handed door The front view which shows the state at the time of unlocking which shows the internal structure of the lock case in the cylinder lock of this invention The front view which shows the state at the time of the lock | rock which shows the internal structure of the lock case in the cylinder lock of this invention

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  As shown in FIGS. 1 to 5, an interior cylinder lock 1 according to the present invention includes a lock case 2 that is housed in a storage hole b provided in the plate thickness of the door a, and a cylinder that is attached to the outdoor side of the door a. A main body 3, a thumb turn 4 attached to the indoor side of the door a, a tail piece 5 disposed between the cylinder main body 3 outside the door a and interlocking with the rotation of the cylinder main body 3; A cylinder cam (described later) in the lock case 2 and a tail plate 6 for connecting the thumb turn 4 in the rotational direction are formed.

  As shown in FIGS. 7 and 8, the lock case 2 includes a cam that swings through a front plate 7 of the case 2a so that a latch bolt 8 can freely protrude and retract, and a rear knob of the latch bolt 8 and a door knob (not shown). The upper end of 9 is coupled so that the latch bolt 8 is pulled in by the tilting movement of the cam 9 toward the door bottom side, and the spring 10 urges the elasticity in the direction in which it always protrudes to the latch bolt 8.

  The cam 9 is biased by a return elasticity that presses the latch bolt 8 in a direction in which the latch bolt 8 always protrudes by a spring 11 provided between the cam 2 and the latch bolt 8. The latch bolt 8 is rotatably supported by the case 2a. Before the front plate 7 is set in the case 2a and the guide 12 is fitted to the latch bolt 8, the latch bolt 8 is adjusted to the right and left of the door. You can change the direction.

  A cylinder cam 13 is rotatably provided at a position closer to the rear in the upper part of the case 2a. The cylinder cam 13 is provided with a long square hole 14 through which the tail plate 6 passes. The upper end of the lock stopper 16 is coupled to the first arm 15 projecting from the pin 13 with a pin 17, and the lower end of the lock stopper 16 is moved vertically by a vertical slot 18 provided in the case 2 a and a pin 19 fitted thereto. When the cylinder cam 13 is in the unlocking phase with the square hole 14 being vertical as shown in FIG. 7, the lock stopper 16 is pulled up to the raised position, and the lower end of the lock stopper 16 is higher than the rear end of the latch bolt 8. The latch bolt 8 can be retracted and retracted.

  When the cylinder cam 13 reaches the locking phase rotated 90 ° from the unlocking phase to the door end side, the lock stopper 16 descends, and the lower end of the lock stopper 16 is the rear end position of the latch bolt 8 as shown in FIG. The latch bolt 8 which protrudes downward is made impossible to move backward, and the locked state is locked.

  In the cylinder cam 13, a pin 21 provided on the second arm 20 and a pin 22 fixed in the case 2 a are coupled by a spring 23 to elastically hold either the unlocking phase or the locking phase of the latch bolt 8. Thus, the tail plate 6 gives rotation to the door end in a range of 90 °.

  As shown in FIGS. 1 to 3, the cylinder body 3 is attached to the outer cylinder 24 so that the cylinder 27 can be inserted into and removed from the key hole 26 from the front side. The screw cylinder 28 has a projecting structure, the cylinder 25 can be rotated 180 °, and the key 27 can be inserted / removed at an intermediate position of the rotation. When the cylinder 27 is attached to the lock case 2, the right end in the rotation direction becomes the locking position, Further, the left end of the rotational direction is formed to be an unlocked position, and as shown in FIGS. 4A and 5, the cylinder 25 has a circular end 29 as a rear end thereof, and an outer peripheral surface of the end. A pair of torque transmission protrusions 30 are provided on both sides of the shaft center.

  As shown in FIGS. 4 to 6, the tail piece 5 is an independent member that is separate from the cylinder body 3, and is formed on the circular end wall 5a so as to be fitted on the circular end 29 of the cylinder 25. A pair of engaging pieces 31 are formed around the cylinder wall 5b and a flange 5c having a substantially semicircular shape on the outer periphery of the cylinder wall 5b, and engages with the cylinder 25 in the rotation direction on the inner periphery of the cylinder wall 5b. , And two engagement holes 32 through which the tail plate 6 is inserted are formed at a right angle in the circular end wall 5a.

  As shown in FIGS. 4 and 5, the tail piece 5 is inserted into the mounting hole 33 provided in the door a so as to be rotatable, and when the tail piece 5 is covered with the cylinder body 3, the pair of engaging pieces 31 are formed. The cylinder 25 is accommodated between the pair of torque transmission protrusions 30 and rotated by 90 ° left and right with a play angle by rotating the cylinder 25 left and right by 180 °, and this rotation is transmitted to the tail plate 6.

  As shown in FIG. 6 (a), when the tail piece 5 is attached to the surface of the flange 5c of the tail piece 5 with respect to the door a, it is opened to the right so that the right and left doors can be arranged differently. A display unit 34 that indicates a direction toward the door-end side when attached to the door and a display unit 35 that indicates a direction toward the door-end side when attached to the left opening door are provided, and both the display units 34 and 35 are arrows. It is formed by engraving.

  Two circular engagement holes 32 through which the tail plate 6 is inserted intersect the circular end wall 5a of the tailpiece 5 so as to intersect at right angles, and bottom portions 32a are provided at both ends of each engagement hole 32. The tail plate 6 inserted into the engagement hole 32 is formed of a horizontally long metal plate. A wide head 6a is provided at one end of the tail plate 6. When the tail plate 6 is inserted into the engagement hole 32, the head 6a is By abutting on 32a and being accommodated in the engagement hole 32, one side in the length direction is prevented and the tail piece 5 and the tail plate 6 are coupled in the rotational direction.

  The arrows of the display portions 34 and 35 provided on the flange 5c of the tailpiece 5 are provided in a 90 ° arrangement in accordance with the positions of the end portions in the opening length direction of the two engagement holes 32, and the arrows are in opposite directions. It is arranged to face.

  2 and 3, the tail plate 6 is connected to the tail piece 5 and penetrates the square hole 14 of the cylinder cam 13 located in the lock case 2 so as to be provided on the thumb 4 of the thumb 4a. The rotation of the cylinder 25 or the photographing 4a is transmitted to the cylinder cam 13 by being fitted into the rectangular hole 4b.

  As shown in FIG. 5, the thumb turn 4 is provided with an insertion cylinder 37 of a bolt 36 for fastening to the cylinder body 3, and the outer surface is covered with a cover 4c.

  The cylinder lock 1 of the present invention is configured as described above. As shown in FIG. 5, the storage hole b that opens at the door tip surface in the plate thickness of the door a, and the attachment and fastening of the tail piece 5 to the outdoor side A mounting hole 33 for inserting the bolt 36 and a mounting hole 38 for the door knob, and a mounting hole 39 for inserting the thumb turn 4 and inserting the fastening bolt 36 and the door on the indoor side as shown in FIG. A knob mounting hole is provided, and the lock case 2 is placed in the storage hole b and fixed by the front plate 7. At this time, the latch bolt 8 of the lock case 2 sets the direction of the door closing direction in accordance with the right and left hand of the door.

  In this state, the tail piece 5 is assembled in the attachment hole 33 on the outdoor side so that one engagement hole 32 is vertical, and the tail plate 6 is vertically oriented from the engagement hole 32 perpendicular to the tail piece 5. Insert the cylinder body 3 over the tail piece 5 through the square hole 14 of the cylinder cam 13, overlap the thumb turn 4 on the indoor side of the door a, and attach the fastening bolt 36 in a state where the shooting 4 a is coupled to the tail plate 6. Insert the cylinder body 3 and the thumb turn 4 temporarily.

  Next, the thumb 4 is turned to confirm that it operates normally, and then fixed, and the cover 4c is attached to the thumb turn 4 to complete the mounting.

  1 to 5 show a state where the cylinder lock 1 is attached to the right-handed door. In the unlocked state where the key 27 is not inserted into the key hole 26 of the cylinder 25, the tail plate 6 and the cylinder cam are shown in FIG. The 13 square holes 14 are vertically oriented and the lock stopper 16 is pulled up and held in the raised position, and the latch bolt 8 can be inserted by swinging the cam 9 to the door bottom side by rotating the door knob. A door will be created.

  Further, when the cylinder 25 is inserted into the key hole 26 and the key 27 is inserted and rotated to the locking position, the tail piece 5, the tail plate 6, and the thumb 4 of the thumb turn 4 are rotated together, so that the cylinder cam 13 is shown in FIG. 8 is held by the spring 23 at the position of FIG. 8 rotated 90 ° in the clockwise direction, and the lock stopper 16 descends to face the rear end of the latch bolt 8 so that the latch bolt 8 cannot be immersed.

  Here, when the cylinder lock 1 is attached to the door a, the door a has a right-handed and left-handed opening / closing direction. For this reason, when the lock case 2 is attached, the direction of the latch bolt 8 is the left-right hand of the door a. Adjust to match.

  Further, when the tail piece 5 is assembled into the mounting hole 33, when the one arrow of the display portions 34, 35 provided on the flange 5c is located at the lower portion of the tail piece 5, the display portion 34 located at the lower portion thereof. Alternatively, the tail piece 5 is rotated so that the direction of the arrow of 35 is directed to the door end side, and the position of the rotation direction is adjusted, and the engagement hole 32 corresponding to the arrow of the display unit 34 or 35 located at the lower portion is formed. The tail plate 6 is inserted into the square hole 14 of the cylinder cam 13 from the vertical engagement hole 32 to connect the tail piece 5 and the cylinder cam 13 in the rotational direction.

  1 to 5 show a state where the cylinder lock 1 is attached to the right-handed door, and the display portion 34 located at the lower part of the tailpiece 5 is in a phase toward the door-end side, and FIG. The state where the cylinder lock 1 is attached to the free door is shown, and the display portion 35 located at the lower portion of the tailpiece 5 is in a phase toward the door end side.

  In this way, the tail piece 5 is separated from the cylinder body 3, and when the tail piece 5 is attached, the right and left hand of the cylinder lock 1 can be easily adjusted by adjusting the mounting direction according to the right and left hand of the door a. Can be switched.

1 Cylinder lock 2 Lock case 3 Cylinder body 4 Thumb turn 5 Tail piece 6 Tail plate 7 Front plate 8 Latch bolt 9 Cam 10 Spring 11 Spring 12 Guide 13 Cylinder cam 14 Square hole 15 First arm 16 Lock stopper 17 Pin 18 Long hole 19 pin 20 second arm 21 pin 22 pin 23 spring 24 outer cylinder 25 cylinder 26 key hole 27 key 28 screw cylinder 29 circular end 30 torque transmission protrusion 31 engagement piece 32 engagement hole 33 attachment hole 34 display section 35 Display 36 Fastening bolt 37 Insertion tube

Claims (3)

A lock case is housed within the thickness of the door, a cylinder body is disposed outside the door, and a thumb turn is disposed on the indoor side of the door, and a tail piece for operating the cylinder body and the thumb turn is disposed between the cylinder body and the thumb turn. A tail plate is provided, and the latch bolt provided on the tail plate and the lock case is interlocked, and the lock bolt of the lock case can be locked and unlocked by the turning operation of the cylinder body and the thumb turn. In the cylinder locks
When attaching and assembling the cylinder lock to the door, the tail piece is a separate structure with respect to the cylinder body so that it can cope with the difference in the right and left opening of the door, and when this tail piece is attached to the door, The tailpiece has a display unit that indicates the direction toward the door when attaching to the right opening door, and the door side when attaching to the left opening door so that the arrangement corresponds to a door with different right-and-left opening. A cylinder lock provided with a display unit for indicating a direction to be directed.   The tailpiece is formed by surrounding a circular end wall with a cylindrical wall and a flange on the outer periphery of the cylindrical wall so as to be fitted around the cylindrical end of the cylinder in the cylinder body. A cylinder and a rotating engagement piece are provided on the circumference, two engagement holes for inserting the tail plate are formed in the circular end wall at a right angle, and the display portion is formed on the surface of the flange. The cylinder lock according to claim 1, wherein the cylinder lock is provided in an arrangement in accordance with a position in a length direction of the opening of the hole.   The cylinder lock according to claim 1 or 2, wherein the display part is formed by an arrow marking, and the arrows are arranged in opposite directions.

Images