JP3105519U - Thumb turn with knob lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple, easy-to-handle, and safe thumb-turn with a lock that prevents unauthorized unlocking by turning a thumb-turn and prevents accidental locking and unlocking by children.
A thumb (5) is mounted on an outer peripheral portion of a thumb turn shaft (4) supported by a thumb turn mounting body (3) so as to be movable via a spring (6) in a thumb turn axial direction. By the movement of the knob, the external teeth (19) provided on the thumb turn shaft (4) and the internal teeth (20) provided on the knob are engaged to enable locking and unlocking by rotating the knob. , 20), when the engagement is released, the knob is idled to lock and unlock. A lock member (7) is provided on the movement path (28) of the knob so as to intersect with the thumb turn shaft (4), and the movement of the knob is prevented and released by the operation of the lock member.
[Selection diagram] FIG.

Description

  The present invention relates to a thumb turn of a lock device, and more particularly to a thumb turn with a thumb lock that prevents a thumb turn of a thumb turn from being unlocked by being illegally rotated and, in particular, prevents erroneous unlocking by children.

  2. Description of the Related Art In a lock device, there is known a thumb turn for locking and unlocking by operating a deadbolt. The thumb turn is locked and unlocked by turning the knob, but the knob is generally formed in a wing plate shape so as to be easily picked. For this purpose, in recent years, a wire-shaped object bent into an L-shape has been inserted through a hole opened in the gap between the door and the vicinity of the thumb turn, and the bent portion at the tip of the wire is hooked on a wing-shaped knob to be unlocked. In other words, there is an illegal act of turning the so-called thumb turn.

  Therefore, the outer peripheral surface of the knob is formed in a round shape so that the tip of the wire is not caught, or the knob is formed so as to be movable in the axial direction of the thumb, locks and unlocks when the knob is pushed in, and idles when it is not pushed in Locking and unlocking are not possible.

However, these things cannot surely prevent the thumb turn, and in the case of moving the knob as described above, if the knob is moved in the axial direction of the thumb turn, unlocking is possible, so it is not necessarily safe. It was not something.
In addition, children who do not know exactly how to lock and unlock may mischief and unlock the thumb tern, or even accidentally lock while the mother is going to take out the garbage and go home. It is happening that you can not enter.

  The present invention is intended to solve these problems and to further improve the problems, and to prevent unauthorized unlocking by turning a thumb turn and prevent accidental locking and unlocking by children. An object of the present invention is to provide a thumb lock with a lock for picking which is simple, easy to handle, and safe.

  The present invention has a knob movably mounted in the thumb-turn axis direction on an outer peripheral portion of a thumb-turn shaft supported by a thumb-turn mounting body, and the knob is engaged with the thumb-turn shaft by the movement of the knob to enable locking. A position where the knob and the thumb turn shaft are disengaged from each other and the knob is idled relative to the thumb turn shaft to form a position where unlocking is not possible, and a lock member is provided on the movement path of the knob so as to intersect with the thumb turn shaft. The movement of the knob is prevented and released by the operation of.

  Also, a click mechanism is provided on the lock member so that the movement of the knob by the lock member can be prevented and released smoothly and reliably.

  Further, a mark is displayed on the end face of the thumb-turn shaft so that the locking and unlocking state by the thumb-turn can be easily known.

  In the present invention, since the lock member is provided on the movement path of the knob, the movement of the knob can be prevented by the operation of the lock member so that the knob does not engage with the thumb turn shaft. Can be easily and reliably prevented from accidentally erroneously unlocking and locking, and it is safe, and the operation is simple and easy to handle.

  Further, since the outer peripheral surface of the knob is rounded and the knob idles at a position where the knob does not engage with the thumb turn shaft, it is possible to further prevent the thumb turn from being performed illegally.

  Furthermore, since the lock member is provided with the click mechanism, a reliable and smooth click action can be obtained.

  In addition, since the mark is displayed on the outer end surface of the thumb turn shaft, the locked state and the unlocked state can be easily known by this display, and it is easy to use.

  The thumb turn (1) is arranged movably in the axial direction on a thumb turn shaft (4) supported by the thumb turn mounting body, a thumb turn shaft (4) supported on the thumb turn mounting body, and an outer peripheral portion of the thumb turn shaft. A knob (5) removably engaged with the thumb turn shaft (4), and a spring (6) mounted between the thumb turn mounting body (3) and the knob (5) for urging the knob in the axial direction of the thumb turn shaft. ) And a lock member (7) for preventing or releasing the movement of the knob (5).

These members can be assembled according to the following procedure.
First, the thumb turn shaft (4) is passed through the insertion hole (8) of the knob (5), and the locking portion (9) at the end of the thumb turn shaft is inserted into the locking hole (10) of the knob.

  Next, the thumb turn mounting body (3) is taken out, and the lock member (7) is passed through a groove (47) formed so as to intersect a cylindrical support (12) extending from the seat (11). In this state, one end of the spring (6) is inserted into the support step (13) formed at the end of the support (12) of the seat, and the other end of the spring is supported by the support groove (14) of the knob (5). Insert

  With the spring (6) inserted between the seat (11) and the knob (5), the shaft (15) of the thumb turn shaft (4) is locked against the spring pressure by the locking member ( 7) and through a through-hole (17) formed in the seat (11), and on the back side of the through-hole, a retaining ring (18) is attached to the thumb-turn shaft (4) to mount the thumb-turn shaft (18). 4) The movement in the axial direction is restricted. Thereby, the respective members form a connected state (FIGS. 2, 3, 11, and 12).

  In this state, the knob (5) is pressed against the locking portion (9) of the thumb turn shaft by the bias of the spring (6), but can be moved to the seat (11) side against the spring. Has become.

  External teeth (19) are formed on the outer periphery of the thumb turn shaft (4), and internal teeth (20) engageable with the external teeth are formed on the inner periphery of the knob (5). Have been.

  As shown in FIGS. 11 and 12, when the external force (19) and the internal tooth (20) are formed, when no external force acts on the knob (5), the external tooth (19) and the internal tooth (20) are formed. When the internal teeth (20) are disengaged (FIG. 11) and an external force is applied by hand to move the knob toward the seat (11) side while opposing the knob spring (6), the external teeth are displaced. The (19) and the internal teeth (20) are engaged, and the thumb turn shaft (4) and the knob (5) are integrally connected (FIG. 12).

  When the thumb turn (1) is mounted on the door (2) (the mounting method will be described later), the cam shaft (21) (FIGS. 1, 10) provided at the shaft end of the thumb turn shaft (4) Since it is engaged with the cam groove (24) of the thumb turn disk (23) (FIGS. 1, 9) of the box lock (22) provided inside the door (2), the knob (5) is held in the state shown in FIG. By rotating the thumb turn shaft (4), the dead bolt (25) can be locked or unlocked by projecting or retracting the dead bolt (25) by its movement with the thumb turn disk (23).

  Here, when the hand is released from the knob (5) and the action of the external force is released, the knob returns to the original position by the pressure of the spring (6) as shown in FIG. 11, and the external teeth (19) of the thumb turn shaft (4). Then, the engagement of the internal teeth (20) of the knob (5) is disengaged, the knob (5) is in a free state, and even if the knob is rotated, the knob (5) is in an idling state, so that the thumb turn shaft (4) cannot be rotated, Therefore, locking and unlocking cannot be performed in this state.

  As described above, since the knob (5) idles and the outer peripheral surface of the knob is rounded as shown in the drawing, it is difficult to rotate the thumb turn (1) by rotating the knob.

  As shown in FIG. 8, the lock member (7) supported by the support portion (12) of the thumb turn mounting body (3) has a flat portion (26) and an upright portion (27) formed at an end thereof. The lock member is moved to move the lock member to move the upright portion (27) as shown in FIG. 4 and FIG. 3) When the knob is positioned above, the knob (5) is in a locked state, and its end abuts on the upright portion (27) and cannot be moved in the axial direction of the thumb turn. Therefore, improper or accidental locking and unlocking can be reliably prevented.

  Here, when the lock member (7) is moved to the position shown in FIG. 5 and FIG. 7, the upright portion (27) of the lock member moves out of the moving path of the knob, and the knob (5) is unlocked. Since it can move in the axial direction of the thumb turn shaft, it can be locked and unlocked.

The lock member (7) is provided with a click mechanism (29) as shown in FIG.
In this case, the lock member (7) is integrally formed of a plastic material, and is provided with elongated grooves (30) on both sides of its long groove (16) (having substantially the diameter of the thumb turn shaft) to form a linear body (31). ) Is formed, and an inwardly projecting projection (32) is provided at a substantially central portion of the linear body. Therefore, the elastic action of the linear body and the projection (32) allow the axis of the thumb-turn shaft to be formed. A click action is performed on the portion (15), so that the lock member (7) can be moved smoothly and reliably.

  The click mechanism (29) can use other means. For example, a piano wire can be provided on both sides of the long groove (16), or a ball and a spring can be used.

A mark (33) is displayed on the end surface of the locking portion (9) of the thumb turn shaft (4) so that it is possible to recognize whether the thumb turn shaft is locked or unlocked when the thumb turn shaft is rotated.
This mark may be formed on the surface of the locking portion (9) of the thumb-turn shaft in an uneven shape, or the surface may be printed or colored, or the mark displayed on a seal or the like may be displayed on the locking portion. It can be displayed by sticking on the surface of (9) or using any other appropriate method.

  As shown in FIG. 1, the thumb turn (1) was inserted into the adapter (34) through the insertion hole (49) through the surface of the thumb turn disk (23) of the box lock (22), and the front (35) was removed. In this state, a pin (36) is inserted from the front side into a mounting hole (37) formed in the mounting portion (46) of the adapter and fixed, and a mounting plate (38) is screwed to the adapter (34) with a screw (39) or the like. Then, a projection (41) formed on the seat (11) of the thumb-turn mounting body (3) is inserted into a hole (40) formed in the mounting plate and positioned, and the seat of the thumb-turn mounting body (3) is positioned. (11) is fixed to the mounting plate (38) with screws (48) or the like. In this case, the camshaft (21) of the thumb-turn shaft (4) passes through the insertion hole (50) of the mounting plate (38) and the insertion hole (51) of the adapter (34), and the camshaft of the thumb-turn disk (23). The groove (24) is engaged.

In the above embodiment, when the thumb turn (1) is mounted on the door (2), the cam shaft (21) of the thumb turn shaft (4) is connected to the cam groove (24) of the thumb turn disk (23) in the box lock (22). And a fixed position, and the length of the entire shaft portion (15) of the thumb turn shaft is adjusted.
That is, as shown in FIGS. 1 and 11 to 13, an engagement groove (42) is formed in the mounting end of the shaft portion (15) of the thumb-turn shaft, and the camshaft (21) is formed in the engagement groove (42). ) Is inserted, and the cam shaft (21) is engaged with a ring (44) formed by a spring wire or the like provided on the outer periphery of the mounting end of the shaft portion (15) of the thumb turn shaft. The length of the thumb turn shaft is adjusted by engaging the grooves (45) (three grooves are formed at equal intervals in the drawing, but other numbers are also possible) formed in the joint portion (43). I have.

  In the above embodiment, the engagement between the thumb turn shaft (4) and the knob (5) is performed by the internal teeth (20) and the external teeth (19). Or engagement by a clutch or the like can be used.

  The spring (6) for urging the knob (5) uses a compression spring in this example, but may use another tension spring or another structure.

FIG. 3 is an exploded perspective view showing an embodiment of the present invention. It is an enlarged left side view of a thumb turn. FIG. 4 is an enlarged right side view of the thumb turn. It is an enlarged plan view showing the state where the movement of the knob was locked by the lock member. FIG. 5 is an enlarged plan view showing a case where the locked state of the movement of the knob is released in FIG. 4. It is an enlarged front view which shows the state which locked the movement of the knob with the lock member. FIG. 7 is an enlarged plan view showing a case where the locked state of the movement of the knob is released in FIG. 6. It is an enlarged plan view of a lock member. It is a partially enlarged front view of a thumb turn disk. It is an enlarged front view of the cam shaft of a thumb-turn shaft. FIG. 4 is an enlarged partial cross-sectional view of the thumb turn showing a state where the thumb and the knob are not engaged. FIG. 4 is an enlarged partial cross-sectional view of the thumb turn showing a state where a thumb is engaged with a thumb turn shaft. It is an enlarged plan view showing a cam shaft part of a thumb turn shaft.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Thumb turn 3 Thumb turn mounting body 4 Thumb turn shaft 5 Knob 6 Spring 7 Lock member 11 Seat 19 External teeth 20 Internal teeth 21 Cam shaft 24 Cam groove 25 Dead bolt 26 Flat part 27 Standing part 28 Moving path area 29 Click mechanism 33 Mark

Claims (6)

  A thumb-turn mounting body mounted on a door, a thumb-turn shaft supported by the thumb-turn mounting body and engaged with a cam groove of a thumb-turn disk for operating a deadbolt, and having an outer peripheral surface rounded and arranged on an outer peripheral portion of the thumb-turn shaft A knob attached movably in the axial direction, means for engaging the thumb-turn shaft with the knob, and when the knob is moved by applying an external force in the axial direction to the knob, the knob engages with the thumb-turn shaft to engage the external force. When the action of (1) is released, the knob is disengaged from the thumb-turn shaft, and a spring is provided to bias the knob so that the knob can rotate idly, and can cross the thumb-turn shaft and move in the crossing direction. A thumb lock with a knob lock, comprising a lock member for preventing and releasing movement in the direction.   2. A thumb lock with a knob lock according to claim 1, wherein, as means for engaging the thumb turn shaft with the knob, external teeth are provided on an outer peripheral portion of the thumb turn shaft and internal teeth are provided on an inner peripheral portion of the knob.   The lock member is formed in a substantially L-shaped section having a flat portion and an upright portion at its end, and the upright portion is brought into contact with the knob to prevent the knob from moving in the axial direction. Item 3. A thumb turn with a knob lock according to Item 1 or 2.   The thumb lock with a knob lock according to any one of claims 1 to 3, wherein a click mechanism is provided on the lock member.   5. The click mechanism according to claim 4, wherein the lock member includes a linear member which is located on both sides of the thumb turn shaft and applies elasticity to the lock member, and a protrusion protruding inward is provided at a substantially central portion of the linear member. Thumb turn with knob lock.   The thumb turn with a knob lock according to any one of claims 1 to 5, wherein a mark is displayed on an end face of the thumb turn shaft so that the state of locking and unlocking by the dead bolt can be known.

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