JP7025217B2 - Lock handle for doors with auto-lock function - Google Patents

Description

The present invention is used for a door such as a switchboard storage box, and the door is opened and closed by rotating the handle lever attached to the door from the closed position to the open position of the door or vice versa, and the door is provided on the handle lever. A door lock with a lock unit that locks or unlocks the handle lever by inserting and removing the dead bolt into the lock hole by inserting the key into the lock unit and rotating the key from the lock position to the unlock position or vice versa. Regarding the handle, in particular, it relates to a lock handle for a door with an auto-lock function that automatically locks the handle lever by simply returning the handle lever from the open position to the closed position when closing the door.

A door lock handle with this type of lock unit has previously been proposed by the applicant of the present application in Patent Document 1.
This lock handle for the door has a clasp that rotatably inserts the operation shaft of the handle lever into the shaft hole of the handle seat that is fixed to the door and engages and disengages with the receiver on the fixed frame side of the box body. Connected to the tip, a receiving hole opened on the front side is provided on the operating shaft, and the operating shaft is locked to the handle seat so as not to rotate by engaging with the inner concave portion of the shaft hole from the inner wall through hole of the receiving hole. A joint member in which the dead bolt is housed in the tip of the receiving hole, the lock unit is housed in the front end of the receiving hole and fixed to the operation shaft, and the cam part for driving the dead bolt from the inner wall through hole is provided at the tip. Is rotatably housed in the middle portion of the receiving hole, and the front end portion of the joint member is interlocked with the rotor of the lock unit.
In this way, the door is closed, and the lock is locked to the fixed frame by engaging with the clasp by rotating the handle lever, and the dead bolt is locked by operating the key of the lock unit. The tip of the handle is engaged with the inner recess of the handle seat to lock the handle lever. To open the door, a predetermined key is inserted into the key hole of the rotor of the lock unit to unlock the lock unit, and the rotor is rotated in a predetermined direction by the key. As the joint member rotates in conjunction with the rotation of the rotor, the dead bolt is towed and driven by the cam portion, and the tip of the dead bolt escapes from the inner recess of the handle seat and becomes a through hole in the inner wall of the operation shaft. Be drawn in. As a result, the lock of the operation shaft with respect to the handle seat is released, the handle lever can rotate, and by turning the handle lever in a predetermined direction, the clasp is released from the receiver on the fixed frame side, and the door is the handle lever. Is released by pulling it toward you.

Japanese Unexamined Patent Publication No. 9-125758

By the way, in the above-mentioned conventional lock handle for a door, when closing the door, first close the door, return the handle lever, then insert the key into the key hole of the rotor of the lock unit, and use the key to turn the rotor in the opposite direction. By rotating the joint member, a dead bolt is inserted into the inner recess of the handle seat through the inner wall through hole of the operation shaft at the cam part of the joint member to lock the operation shaft, and then from the lock unit. By pulling out the key, the rotor of the lock unit is locked.
In this way, with the above-mentioned conventional door lock handle, in order to close and lock the door, it is necessary to operate the key opposite to the case of opening the door, so the key operation is troublesome and sometimes the key is forgotten to be locked. There is a problem that there is.

The present invention solves such a conventional problem, and in a door lock handle with a lock unit of this kind, when unlocking the door, only a simple operation of the key of the lock unit is performed. So, when closing the door, just by returning the handle lever to its original position (that is, from the open position of the door to the closed position), the handle lever is automatically locked, the key operation is omitted, and the lock is prevented from being forgotten. The purpose is to do.

In order to achieve the above object, the lock handle for the door with the auto-lock function of the present invention is used.
A handle seat that has a shaft hole and is pierced between the front and back of the door, and a fixed frame side that is rotatably inserted into the shaft hole of the handle seat and is on the tip side that is the back side of the door. A stopper is attached to the receiving metal of the door, and a receiving hole is formed by opening the base end surface at the base end portion on the front side of the door, and the door is formed from the base end portion side of the operation shaft. It has a handle lever consisting of a grip extending along the front surface of the door, a lock unit in which a key hole is exposed on the base end surface of the operation shaft and mounted in a receiving hole of the operation shaft, and a cam portion at the tip thereof. A joint member that is rotatably connected to the rotor of the lock unit in the receiving hole of the operation shaft and is formed on the peripheral wall portion of the receiving hole by being engaged with the cam portion of the joint member in the receiving hole. It is removably arranged in a lock groove or a lock hole formed on the inner peripheral surface of the shaft hole of the handle seat through the through hole, and the lock groove is inserted through the joint member by the rotation of the rotor of the lock unit. Alternatively, the lock hole is provided with a dead bolt that is driven so as to be removable, and the clasp on the door side is engaged with and detached from the receiver on the fixed frame body side by rotating the handle lever to the closed position or the open position of the door. For doors that insert and remove the dead bolt into the lock groove or lock hole and lock or unlock the handle lever by inserting the key into the lock unit and rotating the key to the lock position or unlock position. At the lock handle
(1) A guide portion is defined in the peripheral wall portion of the receiving hole of the operating shaft so as to communicate with the through hole and guide the dead bolt to the lock groove or the lock hole by sliding.
(2) A pin insertion portion is formed on the surface of the guide portion opposite to the lock unit so as to communicate with the guide portion and to be orthogonal to the sliding direction of the dead bolt, and the pin insertion portion is formed. One end of the portion is opened as a through hole in the peripheral wall portion of the receiving hole of the operation shaft, and a receiving groove is formed on the inner peripheral surface of the shaft hole of the handle receiving seat facing the through hole to form the pin. A holding pin having a stepped portion on the peripheral surface of the insertion portion is interposed between the other end of the pin insertion portion and the end portion of the holding pin via a coil spring that urges the holding pin in the normal direction of the through hole. And is arranged so as to protrude from the through hole.
(3) The dead bolt is drawn to one side surface, the guide portion, the cam portion of the joint member, the dead bolt is separated from the lock groove or the lock hole, and is drawn into the receiving hole of the operating shaft. The holding pin has a recess that can be engaged only in the direction, and the dead bolt protrudes from the receiving hole of the operating shaft through the through hole and is inserted into the lock groove or the lock hole on the other side surface. A convex portion that engages with the step portion, immerses the holding pin in the pin insertion portion, retracts the step portion of the holding pin from the guide portion, and allows the dead bolt to slide on the guide portion. In a state where the dead bolt is separated from the lock groove or the lock hole and pulled into the receiving hole of the operation shaft, the step portion of the holding pin is fitted and the holding pin is inserted from the pin insertion portion. It has a concave portion that protrudes into the receiving groove through the through hole, causes the step portion of the holding pin to enter the guide portion, engages with the dead bolt, and restricts the sliding of the dead bolt in the guide portion. A coil spring that urges the guide portion in the through hole direction with the dead bolt as a normal state is interposed between the end of the guide portion on the opposite side of the through hole and the end of the dead bolt. A guide portion of the receiving hole is arranged so as to project from the through hole.
(4) By inserting the key into the lock unit and rotating the key from the lock position to the unlock position, the cam portion of the joint member connected to the lock unit is engaged with the dead bolt. The dead bolt is pulled in one direction and is released from the lock groove or the lock hole while compressing the coil spring, and by pulling in the dead bolt, the stepped portion of the holding pin and the protrusion of the dead bolt. The engagement with the shaped portion is released, the step portion of the holding pin is fitted into the concave portion of the dead bolt, and the holding pin is projected from the pin insertion portion through the through hole into the receiving groove to hold the holding pin. The stepped portion of the pin is engaged with the concave portion of the dead bolt to regulate the sliding of the dead bolt.
(5) By rotating the handle lever from the closed position to the open position of the door, the clasp is released from the receiver, the door is unlocked, and the operation shaft is rotated and held. The pin is rotated in the circumferential direction, disengages from the receiving groove, is pressed against the inner peripheral surface of the shaft hole of the handle receiving seat, and is immersed in the pin insertion portion, and the step portion of the holding pin exits from the guide portion. By doing so, the engagement between the stepped portion of the holding pin and the dead bolt is released, and the sliding restriction of the dead bolt is released.
(6) When the door is unlocked, the handle lever remains in the open position of the door, and the key inserted into the lock unit is returned to the locked position to return the cam portion of the joint member and the dead . The engagement with the bolt is released, and the dead bolt is pushed out toward the through hole by the urging force of the coil spring and is pressed against the inner peripheral surface of the shaft hole in the handle seat.
(7) When the door is closed and the door is locked, the handle lever is rotated from the open position to the closed position of the door so that the dead bolt is opposed to the lock groove or the lock hole of the coil spring. The urging force automatically protrudes and engages with the lock groove or lock hole to automatically lock the handle lever.
The configuration of (1)-(7) is provided.
The gist is that.

In addition, this lock handle for doors with an auto-lock function is
(B) The dead bolt has a substantially square columnar shape, one end is a flat surface, the other end is provided with a spring receiving portion, the center is formed in a substantially U-shaped cross section on one side surface, and the other side surface has a recess. The other end side of the center is formed in a substantially U-shaped cross section, and has a concave portion in the substantially center and a convex portion on the other end side.
(B) The holding pin has a substantially columnar shape, one end is a hemispherical surface, the other end is provided with a spring receiving portion, and the other end side is formed with a large diameter and has a stepped portion.
(C) The recess on one side of the dead bolt is actuated and connected to the cam portion of the joint member connected to the lock unit, and when the handle lever is locked by the lock unit at the closed position of the door, the operation shaft Inside, the cam portion of the joint member is brought into contact with one side of the recess of the dead bolt at a predetermined standby position, a key is inserted into the key hole of the lock unit, and the key is moved from the lock position to the unlock position. By rotating the joint member, the cam portion of the joint member presses one side of the dead bolt by its eccentric rotation, and the dead bolt is pulled in one direction to compress the coil spring while receiving the handle. By returning the key of the lock unit to the lock position from the state where the handle lever is rotated to the open position of the door after being released from the lock groove or the lock hole of the seat, the cam portion of the joint member in the operation shaft Is returned to a predetermined standby position and abuts on one side and the other surface in the recess of the dead bolt, and the dead bolt is pressed against the inner peripheral surface of the shaft hole of the handle bearing by the urging force of the coil spring. From this state, by further returning the handle lever from the open position of the door to the closed position of the door, the dead bolt is opposed to the lock groove or the lock hole of the handle receiving seat by the urging force of the coil spring. Engage in the lock groove or lock hole,
(D) The convex portion and the concave portion on the other side surface of the dead bolt are operatively connected to the step portion of the holding pin of the pin insertion portion, and the handle lever is locked by the lock unit at the closed position of the door. If so, the stepped portion of the holding pin is pressed from above at the lower part of the convex portion of the dead bolt, the holding pin is immersed in the pin insertion portion through the through hole, and the stepped portion of the holding pin is the guide. The key is inserted into the key hole of the lock unit from the state where the dead bolt is allowed to slide in the guide portion and the handle lever is locked by the lock unit at the closed position of the door. By rotating the key from the lock position to the unlock position, the dead bolt is pulled into the guide portion, and the step portion of the holding pin is fitted into the concave portion of the dead bolt, and the holding pin is inserted. Is projected from the pin insertion portion through the through hole to the receiving groove, and the step portion of the holding pin enters the guide portion and engages with the concave portion of the dead bolt, and the dead bolt is the guide. Sliding is restricted in the part,
The above configurations (a)-(d) are provided.
Further, the lock handle for the door with an auto-lock function is also provided with a slide cap that covers the lock unit housed in the receiving hole on the base end surface of the operation shaft.

According to the lock handle for a door with an auto-lock function of the present invention, when the door is unlocked, the handle lever remains in the open position of the door and the key inserted in the lock unit is returned to the lock position. By leaving it in place, the engagement between the cam part of the joint member and the dead bolt is released, and when the door is closed and locked, the handle lever can be rotated from the open position to the closed position of the door. Since the handle lever is automatically locked, when the door is closed and locked, the handle lever can be automatically locked by simply returning the handle lever to its original position (that is, from the open position to the closed position of the door). It is possible to omit the operation of the key and prevent forgetting to lock the key, which is a special effect peculiar to the present invention.

The figure which shows the whole structure of the lock handle for the door with an auto lock function in one Embodiment of this invention, and the key of the lock unit used for locking and unlocking the lock handle ((a) is the front view (b) of the lock handle. Is a side sectional view of the lock handle (c) is a front view of the same key) A view showing the configuration of the handle seat in particular of the lock handle ((a) is a front view of the handle seat (b) is a side sectional view of the handle seat). A view showing the configuration of the handle lever in particular of the lock handle ((a) is a side sectional view (b) of the handle lever is a partial plan sectional view (c) is a sectional view taken along line CC in (a)). A view showing the configuration of the holding pin of the lock handle (front view). A view showing the configuration of the joint member in particular of the lock handle ((a) is a side view of the joint member (b) is a rear view of the joint member). A view showing the configuration of the dead bolt of the lock handle in particular ((a) is a front view of the dead bolt (b) is a bottom view of the dead bolt (c) is a right side view of the dead bolt). The figure which shows each operation of the dead bolt and the holding pin accompanying the rotation operation by the key of the lock handle, and especially the rotation operation of a handle lever of the lock handle.

Next, a mode for carrying out the present invention will be described with reference to the drawings.
FIG. 1 shows the overall configuration of a lock handle for a door with an auto-lock function, and FIGS. 2 to 6 show the configuration of each part of the lock handle for the door.

As shown in FIG. 1, the lock handle H for a door with an auto-lock function (hereinafter, simply referred to as a lock handle H) has a shaft hole 10 and is mounted through the front and back of the door. And, it is rotatably inserted into the shaft hole 10 of the handle receiving seat 1, and a stopper that is engaged with and detached from the receiving metal on the fixed frame side is attached to the tip end side which is the back side of the door, and the front side of the door and the door. The operation shaft 21 is formed by opening the base end surface of the receiving hole 210 at the base end portion, the handle lever 2 including the grip 20 extending from the base end portion side of the operation shaft 21 along the front surface of the door, and the operation shaft. The lock unit 3 has a lock unit 3 having a key hole 30 exposed on the base end surface of the operation shaft 21 in the receiving hole 210 of the 21 and a cam portion 41 at the tip thereof, and the lock unit 3 in the receiving hole 210 of the operating shaft 21. The joint member 4 rotatably connected in conjunction with the rotor 31 of the above, and the through hole 2120 formed in the peripheral wall portion of the receiving hole 210 by being engaged with the cam portion 41 of the joint member 4 in the receiving hole 210 (FIG. 3 (a) and 3 (b)), the lock groove 104 or the lock hole (see FIG. 2) formed on the inner peripheral surface of the shaft hole 10 of the handle receiving seat 1 is removably arranged and placed on the lock unit 3. It is provided with a dead bolt 5 that is removably driven into the lock groove 104 or the lock hole via the joint member 4 by the rotation of the rotor 31, and the door side is operated by rotating the handle lever 2 to the closed position or the open position. The dead bolt 5 is inserted into the lock groove 104 or the lock hole by engaging and disengaging the clasp on the fixed frame body side, inserting the key K into the lock unit 3, and rotating the key K to the lock position or unlock position. It takes the form of locking or unlocking the handle lever 2 by inserting and removing it.
Then, in this lock handle H, in particular, a guide portion 210c that communicates with the through hole 2120 through the peripheral wall portion of the receiving hole 210 of the operation shaft 21 and guides the dead bolt 5 to the lock groove 104 or the lock hole is defined. A pin insertion portion 210d is formed on the surface of the guide portion 210c opposite to the lock unit 3 so as to communicate with the guide portion 210c and to be orthogonal to the sliding direction of the dead bolt 5. One end of 210d is opened as a through hole 210e in the peripheral wall portion of the receiving hole 210 of the operation shaft 21, and a receiving groove 105 is formed on the inner peripheral surface of the shaft hole 10 of the handle receiving seat 1 facing the through hole 210e. A holding pin 21P having a stepped portion P4 on the peripheral surface of the pin insertion portion 210d is normally inserted between the other end of the pin insertion portion 210d and the end portion of the holding pin 21P in the direction of the through hole 210e. It is arranged so as to be projectable from the through hole 210e via the urging coil spring 21g. Then, the dead bolt 5 is pulled into the receiving hole 210 of the operation shaft 21 by separating the dead bolt 5 from the lock groove 104 or the lock hole in the cam portion 41 of the joint member 4 by the guide portion 210c on one side surface. It has a recess 50 (see FIG. 6) that can be engaged only in one direction (hereinafter referred to as a predetermined direction), and a dead bolt 5 passes through a through hole 2120 from a receiving hole 210 of the operation shaft 21 on the other side surface. In a state of being inserted into the protruding lock groove 104 or the lock hole, the holding pin 21P is engaged with the stepped portion P4 of the holding pin 21P, the holding pin 21P is immersed in the pin insertion portion 210d, and the stepped portion P4 of the holding pin 21P is moved from the guide portion 210c. The convex portion 54 (see FIG. 6) that allows the dead bolt 5 to slide out and slide on the guide portion 210c, and the dead bolt 5 are separated from the lock groove 104 or the lock hole, and are inside the receiving hole 210 of the operation shaft 21. The stepped portion P4 of the holding pin 21P is inserted into the holding pin 21P, the holding pin 21P is projected from the pin insertion portion 210d through the through hole 210e to the receiving groove 105, and the stepped portion P4 of the holding pin 21P is inserted into the guide portion 210c. It has a concave portion 55 (see FIG. 6) that enters and engages with the dead bolt 5 and restricts the sliding of the dead bolt 5 on the guide portion 210c, and is the end of the guide portion 210c opposite to the through hole 2120. A coil spring 53 that normally urges the dead bolt 5 in the through hole 2120 direction is interposed between the portion and the end portion of the dead bolt 5, so that the guide portion 210c of the receiving hole 210 can protrude from the through hole 2120. Be placed.

As shown in FIG. 2, the handle receiving seat 1 is composed of a tubular portion 11 on the distal end side and a tubular portion 13 on the proximal end side which is continuous with the tubular portion 11 on the distal end side via a flange portion 12, and each tubular portion 11 , The shaft hole 10 is concentrically formed on the shaft center inside the 13. In this case, the tubular portion 11 on the distal end side is formed in a substantially cylindrical shape having a small diameter (compared to the tubular portion 13 on the proximal end side), the screw 111 is cut in a predetermined range on the distal end side of the outer peripheral surface, and the handle receiving seat 1 A nut 110 (see FIG. 1) is screwed onto the outer peripheral surface of the door when it is attached to the door. The flange portion 12 projects between the tubular portions 11 and 13 on the distal end side and the proximal end side at right angles to the axial centers of the tubular portions 11 and 13 in the outer peripheral direction, and is formed in a substantially disk shape as a whole. The surface of the flange portion 12 on the tubular portion 11 side on the tip end side is a seat surface 120 with respect to the door, and a mounting boss 121 having screw holes at the center of the upper and lower portions thereof is projected. The tubular portion 13 on the proximal end side is formed into a substantially cylindrical shape having a large diameter (compared to the tubular portion 11 on the distal end side). The shaft hole 10 is formed through the inside of the cylinder portion 11 on the tip side (compared to the cylinder portion 13 on the base end side) to have a small diameter, and is continuous to the inside of the flange portion 12, and the inside of the flange portion 12. It is composed of a large-diameter portion 103 that is continuously formed through the inside of the tubular portion 13 on the base end side in the small-diameter portion 101 of the above, and a lock groove 104 or a lock hole and a receiving groove are formed on the inner peripheral surface of the large-diameter portion 103. 105 is formed so as to face the through hole 2120 and the through hole 210e provided in the middle diameter portion 212 of the operation shaft 21, which will be described later, respectively. In this case, the lock groove 104 is formed in a substantially quadrangular shape in the center on the left side (when viewed from the base end side) on the inner peripheral surface of the large diameter portion 103, and the receiving groove 105 is the inner circumference of the large diameter portion 103. It is formed in the center of the upper side (when viewed from the base end side) behind the lock groove 104 on the surface over a range of approximately 80 ° in the circumferential direction. Hereinafter, the lock groove 104 or the lock hole is simply referred to as a lock groove 104.

As shown in FIG. 3, the handle lever 2 is formed in a substantially L shape as a whole, and has an operation shaft 21 extending in a substantially horizontal direction and a grip 20 extending in a substantially vertical direction from the base end of the operation shaft 21.
The operation shaft 21 has a small diameter portion 211 which is inserted into the small diameter portion 101 in the tubular portion 11 on the tip side from the inside of the flange portion 12 of the handle receiving seat 1 and the tip portion protrudes from the tip of the tubular portion 11. A medium-diameter portion 212 that is continuously inserted into the large-diameter portion 103 of the tubular portion 13 on the proximal end side, which is continuous with the portion 211, and a proximal end opening edge of the tubular portion 13 on the proximal end side that is continuous with the medium-diameter portion 212. It is composed of a large diameter portion 213 which is in contact with the portion and is continuously arranged in the tubular portion 13 on the base end side. The tip portion of the small diameter portion 211 is a square shaft portion 211a for attaching a stopper, and a screw hole 211b is formed in the axial direction at the center of the tip surface thereof. In the large diameter portion 213, the base end surface which is the front surface of the operation shaft 21 is opened, and a receiving hole 210 is formed inside the large diameter portion 213 and the medium diameter portion 212. The receiving hole 210 is formed through the inside of the large diameter portion 213 and communicates with the circular hole 210a capable of accommodating the lock unit 3 and the hole 210a of the large diameter portion 213 to be formed through the inside of the medium diameter portion 212. A circular hole 210b capable of accommodating a joint member 4 connected to the rotor 31 of the lock unit 3 and a hole 210b of the medium diameter portion 212 are communicated with each other on the inner side of the medium diameter portion 212 (the inner end of the receiving hole 210). ), The guide portion 210c composed of a square groove 210c having a U-shaped cross section capable of slidably accommodating the dead bolt 5 engaged with the joint member 4, and the guide portion 210c on the opposite side of the circular hole 210b. A pin insertion portion 210d having a circular tubular shape is formed in the center of the width direction on the surface in a direction orthogonal to the sliding direction of the dead bolt 5, that is, in the vertical direction, communicating with the guide portion 210c. One end of the insertion portion 210d is opened as a through hole 210e in the peripheral wall portion of the receiving hole 210 of the operating shaft 21. As shown in FIG. 4, the holding pin 21P has a substantially columnar shape, one end is a hemispherical surface P1, the other end is provided with a spring receiving portion P2, and one end side and a part of the other end are formed to have a large diameter. The upper portion P3 and the lower portion P4 are provided, and a dimension slightly larger than the vertical height of the dead bolt 5 is set between the upper portion P3 and the lower portion P4. As shown in FIG. 1, the holding pin 21P urges the pin insertion portion 210d in the direction of the through hole 210e with the holding pin 21P as a normal state between the other end of the pin insertion portion 210d and the end of the holding pin 21P. It is arranged so as to be projectable from the through hole 210e via the coil spring 21g.
Although not shown in particular, the clasp is an elongated plate that can be engaged with a receiver fixed to the fixed frame on the box body side to which the door is attached, and has a square hole at one end. The square shaft portion 211a at the tip of the operation shaft 21 is passed through, the spacer S is further passed through the square shaft portion 211a, and the mounting screw 211s is tightened and fixed to the screw hole 211b at the tip. By rotating the handle lever 2 on the handle receiving seat 1 in this way, the clasp can be rotated at the tip of the operating shaft 21.
As shown in FIG. 3, the grip 20 is continuous with the lower part of the base end of the large diameter portion 213 of the operation shaft 21, and is gradually tapered from the upper side to the lower part, and the back surface is in the middle in the vertical direction. It is formed in a concave shape from the part to the lower part, and the lower end is bent in a curved shape toward the back side, so that it has a shape that is easy to handle.
Further, in this handle lever 2, as shown in FIG. 1, the lock unit 3 described later, which is housed in the receiving hole 210, is placed on the base end surface of the operation shaft 21 so as not to be exposed to the outside from the base end opening of the operation shaft 21. A slide cap 22 that covers the entire base end surface and covers the lock unit 3 that is housed in the receiving hole 210 is also provided. In this case, the upper portion of the base end of the large diameter portion 213 of the operation shaft 21 is projected in a triangular shape with rounded corners, and a through hole 216 for passing the mounting boss 221 is formed in the center of the upper portion of the front portion thereof. The slide cap 22 has an outer shape that matches the front shape of the base end surface of the large diameter portion 213 and has a design integrated with the grip 20, and a mounting boss 221 is projected from the upper portion of the back surface thereof. The slide cap 22 is aligned on the large diameter portion 213 base end surface of the operation shaft 21, and the mounting boss 221 is passed through the through hole 216 of the large diameter portion 213 base end surface, and the mounting boss is passed from the back side of the through hole 216. A coil spring 223 is wound around the 221, and a mounting screw 224 is fastened to the mounting boss 221 via the coil spring 223 so that the large diameter portion 213 can rotate laterally from a position on the base end surface. It is attached so that the posture can be held at an arbitrary rotation position (that is, it can be stopped at an arbitrary rotation angle). As a result, the slide cap 22 is usually held on the base end surface of the large diameter portion 213 to conceal the entire base end surface of the operation shaft 21 to improve the appearance of the entire front surface of the handle lever 2, and lock the lock unit 3. When unlocking, the slide cap 22 is slid sideways from the base end surface of the operation shaft 21 to expose the key hole 30 of the lock unit 3 to the outside so that the key K can be inserted into the lock unit 3. ..
Although not particularly shown here, the handle lever 2 is provided with this rotation control unit between the operation shaft 21 and the handle receiving seat 1, and the handle lever 2 is opened from the closed position to the open position. It is regulated to a predetermined rotation angle required by the time, that is, a predetermined angle required for engaging and disengaging the clasp of the handle lever 2 and the receiver. In this case, the handle lever 2 is designed to rotate counterclockwise, and the grip 20 of the handle lever 2 is rotated counterclockwise from a position directly below the operation shaft 21 to a rotation position of 90 °.

As shown in FIG. 1, a commonly used cylinder lock is adopted as the lock unit 3 (hereinafter referred to as a cylinder lock 3), and as is well known, the lock unit 3 is unlocked by inserting the key K into the key hole 30 on the front surface. (Conversely, it is locked by removing the key K from the front key hole 30), and the rotor 31 is rotated by rotating the key K. In this case, there is one position for removing the key K and one position for inserting the key K. One point is omitted. Further, in this case, one place where the key K can be inserted and removed is the lock position of the key K, and the rotation angle of the key K from this lock position to the unlock position is set to 90 °. That is, the key K is inserted into the cylinder lock 3 (key hole 30) to rotate the joint member 4 together with the rotor 31, and the dead bolt 5 is inserted into the lock groove 104 of the handle receiving seat 1 through the through hole 2120 of the operation shaft 21. The rotation angle of the rotor 31 required to disengage the dead bolt 5 from the lock groove 104 of the handle receiving seat 1 from the locked position and pull it into the unlocked position in the through hole 2120 of the operation shaft 21 is 90 °. ing. In this case, the key K is set to the lock position where the key K can be inserted and removed while the key hole 30 is oriented vertically, and when the key K is inserted into the vertically oriented key hole 30, the key K can rotate counterclockwise up to 90 °. Then, this 90 ° rotation position is set as the unlock position. The cylinder lock 3 is housed in the circular hole 210a of the receiving hole 210 from the opening of the base end surface of the operation shaft 21, that is, the opening of the base end surface of the large diameter portion 213, and the front key hole 30 is the large diameter portion. It is exposed on the opening surface of 213.
As shown in FIG. 5, the joint member 4 is formed in a cylindrical shape as a whole, a small cylindrical cam portion 41 is provided at a predetermined position eccentric with respect to the center position of the tip, and the lock unit 3 is provided on the bottom surface of the lock unit 3. A connecting portion 42 is provided so as to be connectable to the rotor 31. As shown in FIG. 1, the joint member 4 is connected to the rotor 31 of the lock unit 3, is arranged in the circular hole 210b of the middle diameter portion 212 of the operation shaft 21, and can rotate in conjunction with the rotor 31. It has become.
The joint member 4 may be integrally formed with the rotor 31 of the cylinder lock 3.

As shown in FIG. 6, the dead bolt 5 has a substantially square columnar shape that can be fitted to the square groove-shaped guide portion 210c of the medium diameter portion 212 of the operation shaft 21, one end of which is a flat surface 51, and the other end of which is a spring. A receiving portion 52 is provided, and a recess 50 is provided on one side surface thereof so that the cam portion 41 of the joint member 4 can be engaged with the cam portion 41 in only one predetermined direction, and the center of the side surface is cut out in a substantially U-shaped cross section. On the other side surface, the other end side of the holding pin 21P is cut out in a substantially U-shaped cross section so that it can be engaged with and detached from the stepped portion P4 of the holding pin 21P. It has a portion 54, and as shown in FIG. 1, a coil spring 53 (see FIG. 7) is attached to a spring receiving portion 52 at the other end, and is inside a guide portion 210c on the inner back side of the receiving hole 210 of the operation shaft 21. , The other end of the dead bolt 5 and the end of the guide portion 210c on the opposite side of the through hole 2120 are fitted via a coil spring 53 (see FIG. 7).
In this way, the recess 50 on one side surface of the dead bolt 5 is operatively connected to the cam portion 41 of the joint member 4 connected to the lock unit 3.
In this case, when the handle lever 2 is locked by the lock unit 3 at the closed position of the door, the cam portion 41 of the joint member 4 in the operation shaft 21 is a spring in the recess 50 of the dead bolt 5 at a predetermined standby position. It is in contact with one side 501 (see FIG. 6) on one side of the receiving portion 52, and the key K is inserted into the key hole 30 of the lock unit 3 and the key K is rotated from the locked position to the unlocked position. The cam portion 41 of the joint member 4 presses one side 501 of the dead bolt 5 by its eccentric rotation, and the dead bolt 5 is pulled in a predetermined direction to compress the coil spring 53 while the handle seat 1 In this state, the handle lever 2 is rotated from the closed position to the open position of the door, and the clasp is received. (This allows the door to open and close). Then, by returning the key K of the lock unit 3 to the locked position from the state where the handle lever 2 is rotated to the open position of the door, the cam portion 41 of the joint member 4 returns to the predetermined standby position in the operation shaft 21. The dead bolt 5 is brought into contact with the other surface 502 (see FIG. 6) on one side opposite to the spring receiving portion 52 side in the recess 50 of the dead bolt 5 (this makes the dead bolt 5 free), and the dead bolt 5 is released. By the urging force of the coil spring 53, it is pressed against the inner peripheral surface of the shaft hole 10 of the handle receiving seat 1 through the through hole 2120 of the operating shaft 21. From this state, by further returning the handle lever 2 from the open position of the door to the closed position of the door, the dead bolt 5 is opposed to the lock groove 104 of the handle receiving seat 1 through the through hole 2120 of the operation shaft 21 and the coil spring 53. The cam portion 41 is automatically engaged with the lock groove 104 by the urging force of the dead bolt 5, and one surface 501 on one side in the recess 50 of the dead bolt 5 is brought into contact with the cam portion 41 returned to the predetermined standby position. It works as a stopper for the dead bolt 5.
Further, the convex portion 54 and the concave portion 55 on the other side surface of the dead bolt 5 are operatively connected to the lower portion P4 of the holding pin 21P of the pin insertion portion 210d.
In this case, the dead bolt 5 is projected from the receiving hole 210 of the operation shaft 21 through the through hole 2120 and inserted into the lock groove 104, that is, the handle lever 2 is locked by the lock unit 3 at the closed position of the door. At this time, the lower portion P4 of the holding pin 21P is pressed from above at the lower part of the convex portion 54 of the dead bolt 5, and the holding pin 21P is immersed in the pin insertion portion 210d through the through hole 210e to immerse the lower portion P4 of the holding pin 21P. The dead bolt 5 exits directly under the guide portion 210c, passes through the inside of the guide portion 210c between the upper stage portion P3 and the lower stage portion P4 of the holding pin 21P, and is allowed to slide. Further, when the key K is inserted into the key hole 30 of the lock unit 3 and the key K is rotated from the locked position to the unlocked position from the state where the handle lever 2 is locked by the lock unit 3 at the closed position of the door, the dead bolt is formed. 5 is separated from the lock groove 104, is immersed in the through hole 2120 of the operation shaft 21, is drawn into the guide portion 210c, and is drawn (moved) into the guide portion 210c of the dead bolt 5 to cause the concave portion of the dead bolt 5. The lower portion P4 of the holding pin 21P is fitted into the 55, the holding pin 21P is projected from the pin insertion portion 210d through the through hole 210e to the receiving groove 105, and the lower portion P4 of the holding pin 21P enters the guide portion 210c. Then, it engages with the concave portion 55 of the dead bolt 5, and the dead bolt 5 is restricted from sliding in the guide portion 210c.
In this way, the dead bolt 5 is operatively connected to both the cam portion 41 of the joint member 4 connected to the cylinder lock 3 and the lower portion P4 of the holding pin 21P.

In this lock handle H, as shown in FIG. 1, a groove 214 is formed in the circumferential direction on the outer peripheral surface of the small diameter portion 211 of the operation shaft 21 of the handle lever 2 near the middle diameter portion 212 of the intermediate portion. The O-ring 214a is fitted into the 214, and is compressed between the tubular portion 11 on the tip end side of the handle receiving seat 1 and the small diameter portion 211 of the operating shaft 21 of the handle lever 2, and the shaft hole 10 of the handle receiving seat 1 is compressed. A groove 106 is formed in the circumferential direction at the base end of the inner peripheral surface of the large diameter portion 103 of the above, and an O-ring 107 is fitted into the groove 106 to form a tubular portion 13 and a handle lever 2 on the base end side of the handle receiving seat 1. It is compressed between the operation shaft 21 and the middle diameter portion 212 of the above. These O-rings 214a and 107 prevent rainwater from entering through the joint between the handle seat 1 and the handle lever 2. Further, when the lock handle H is attached to the door, a circular packing p is inserted between the flange portion 12 and the door, and the packing p prevents rainwater from entering through the door attachment hole and the rotation stop hole. The door.
In this way, the lock handle H is made highly waterproof.

The lock handle H has such a configuration, and is attached to the door panel by a mounting screw (not shown) and a nut 110. In this case, the door panel is provided with a mounting hole for inserting the tubular portion 11 on the tip end side of the handle receiving seat 1 and two holes above and below the mounting hole for passing each mounting boss 121 of the handle receiving seat 1. Then, the packing p is arranged on the seat surface 120 of the handle receiving seat 1, the tubular portion 11 is inserted into the mounting hole, and the seat surface 120 of the handle receiving seat 1 is brought into contact with the front of the door via the packing p. Each mounting boss 121 is passed through each of the upper and lower holes, and a mounting screw is tightened to each mounting boss 121 on the back side of the door, and a nut 110 is tightened to the outer peripheral surface of the small-diameter tubular portion 11 to tighten the door. It is installed through the front and back of the door. Thus, the operating shaft 21 of the handle lever 2 is passed through the shaft hole 10 of the handle receiving seat 1 from the front side of the door, and the clasp is fixed to the tip of the operating shaft 21.

In this way, the lock handle H is attached to the door, and the clasp on the door side is engaged with and detached from the receiver on the fixed frame body side by the rotation operation of the door of the handle lever 2 to the closed position or the open position, and the cylinder lock 3 is attached. By inserting the key K and rotating the key K to the lock position or the unlock position, the dead bolt 5 is inserted into and removed from the lock groove 104, and the handle lever 2 is locked or unlocked.
That is, in this lock handle H, referring to FIG. 1B, first, from the state where the handle lever 2 is locked by the lock unit 3 at the closed position of the door, the key K is inserted into the lock unit 3 and the key K is inserted. By rotating from the lock position to the unlock position, the cam portion 41 of the joint member 4 connected to the lock unit 3 and the recess 50 of the dead bolt 5 (see FIG. 6) engage with each other to release the dead bolt 5. It is pulled in a predetermined direction and is released from the lock groove 104 (see FIG. 2) while compressing the coil spring 53. Further, by pulling in the dead bolt 5, the engagement between the stepped portion P4 of the holding pin 21P and the convex portion 54 of the deadbolt 5 (see FIG. 6) is released, and the dead bolt 5 of the stepped portion P4 of the holding pin 21P is released. Is inserted into the concave portion 55 (see FIG. 6), the holding pin 21P is projected from the pin insertion portion 210d through the through hole 210e into the receiving groove 105, and the stepped portion P4 of the holding pin P21 is the concave portion 55 of the dead bolt 5. The sliding of the dead bolt 5 is restricted by being engaged with. Subsequently, by rotating the handle lever 2 from the closed position to the open position of the door, the clasp is released from the receiver, the door is unlocked, the door can be opened and closed, and the operation shaft 21 is rotated. The holding pin 21P is rotated in the circumferential direction along with the movement, is separated from the receiving groove 105, is pressed against the inner peripheral surface of the shaft hole 10 of the handle receiving seat 1, and is immersed in the pin insertion portion 210d. Is ejected from the guide portion 210c, the engagement between the step portion P4 of the holding pin 21P and the dead bolt 5 is released, and the sliding restriction of the dead bolt 5 is released. When the door is unlocked, the handle lever 2 remains in the open position of the door, and the key K inserted in the lock unit 3 is returned to the locked position, so that the cam portion 41 of the joint member 4 and the dead bolt 5 are separated. The engagement with the recess 50 is released, and the dead bolt 5 is pushed out toward the through hole 2120 by the urging force of the coil spring 53 and is pressed against the inner peripheral surface of the shaft hole 10 in the handle receiving seat 1. .. Then, when the door is closed and the door is locked, the handle lever 2 is rotated from the open position to the closed position of the door, so that the dead bolt 5 is opposed to the lock groove 104 through the through hole 2120 and the coil spring 53 is attached. The force automatically projects and engages with the lock groove 104, and the handle lever 2 is automatically locked.

FIG. 7 illustrates an example of using this lock handle H.
FIG. 7 (1) shows a state in which the door is closed with respect to the fixed frame body and further locked.
In this state, the grip 20 of the handle lever 2 is directed downward, the clasp is engaged with the receiving portion of the fixed frame body on the back side of the door, and the door is held in the closed state. Then, between the handle lever 2 and the handle receiving seat 1, the dead bolt 5 operatively connected to the lock unit 3 via the joint member 4 is inserted into the lock groove 104, and the handle lever 2 is in a non-rotatable locked state. It has become. Further, when the handle lever 2 is locked by the lock unit 3 at the closed position of the door in this way, as shown in FIG. 7 (1), the cam portion 41 of the joint member 4 is predetermined in the operation shaft 21. At the standby position, the dead bolt 5 is brought into contact with one surface 501 on one side of the recess 50 on the spring receiving portion 52 side. Further, between the dead bolt 5 and the holding pin 21P, the lower portion P4 of the holding pin 21P is pressed from above at the lower part of the convex portion 54 of the dead bolt 5, and the holding pin 21P is inserted from the through hole 210e to the pin insertion portion. Immersed in 210d, the lower part P4 of the holding pin 21P is retracted directly under the guide part 210c, and the dead bolt 5 passes through the inside of the guide part 210c between the upper part P3 and the lower part P4 of the holding pin 21P and becomes slidable. In this case, the dead bolt 5 is engaged with the lock groove 104 by the urging force of the coil spring 53, and the handle lever 2 is in the locked state as described above.

FIG. 7 (2) shows a state in which the door is unlocked and the door is opened with respect to the fixed frame body.
To unlock the door, first, the slide cap 22 of the handle lever 2 is slid sideways to expose the key hole 30 of the cylinder lock 3 to the front of the handle lever 2. After unlocking the cylinder lock 3 by inserting the key K into the key hole 30 of the cylinder lock 3, the key K is turned 90 ° to a predetermined unlocking direction, in this case, to the left. As a result, as shown in FIG. 7 (2), the joint member 4 rotates 90 ° in the predetermined unlocking direction (in this case, the left direction) together with the rotor 31 of the cylinder lock 3, and the eccentric position of the joint member 4 The cam portion 41 engages with the recess 50 of the dead bolt 5 from a predetermined standby position due to its eccentric rotation, that is, the cam portion 41 presses one side surface 501 of the recess 50 of the dead bolt 5 and the dead bolt. 5 is pushed toward the other end of the guide portion 210c, in this case to the right, and the dead bolt 5 is pulled into the operation shaft 21 and is released from the lock groove 104 while compressing the coil spring 53 at the other end. As a result, the lock of the handle lever 2 is released. Further, in this case, by pulling (moving) the dead bolt 5 into the guide portion 210c, the lower portion P4 of the holding pin 21P is fitted into the concave portion 55 of the dead bolt 5, and the holding pin 21P is passed through the pin insertion portion 210d. While protruding into the receiving groove 105 through the hole 210e, the lower portion P4 of the holding pin 21P enters the guide portion 210c and engages with the recess 55 of the dead bolt 5, and the dead bolt 5 slides in the guide portion 210c. Is regulated.

Then, when the grip 20 of the handle lever 2 is rotated by 90 ° from the closed position of the door to the open position of the door, in this case, 90 ° to the left, the clasp is released from the receiver of the fixed frame on the back side of the door. You can open the door. Further, with reference to FIG. 7 (2), due to the 90 ° rotation of the handle lever, the operation shaft 21 rotates 90 ° in the same direction, and the through hole 2120 of the receiving hole 210 is a shaft hole in the handle receiving seat 1. The holding pin 21P is rotated 90 ° in the same direction together with the operation shaft 21 so as to face the inner peripheral surface of the 10 and is disengaged from the receiving groove 105 and pressed against the inner peripheral surface of the shaft hole 10 of the handle receiving seat 1. , The holding pin 21P is immersed in the pin insertion portion 210d, the step portion P4 of the holding pin 21P is retracted from the guide portion 210c, the engagement between the step portion P4 of the holding pin 21P and the dead bolt 5 is released, and the dead bolt is released. The sliding regulation of 5 is lifted. At this time, the key K inserted into the lock unit 3 is in the unlocked position, and the dead bolt 5 is still pulled into the guide portion 210c in the receiving hole 210 of the operation shaft 21. The door is unlocked in this way.

Then, when the door is unlocked, the key K inserted into the lock unit 3 is returned to the locked position while the handle lever 2 remains in the open position of the door. As a result, the joint member 4 rotates 90 ° in the operation shaft 21 together with the rotor 31 of the lock unit 3 in the predetermined locking direction (in this case, the right direction), and the cam portion 41 of the joint member 4 is in the predetermined standby position. It is returned and is brought into contact with the other surface 502 on one side opposite to the spring receiving portion 52 side in the recess 50 of the dead bolt 5, and the engagement between the cam portion 41 and the dead bolt 5 is released. By disengaging the cam portion 41 and the dead bolt 5, the dead bolt 5 is pushed out toward the through hole 2120 by the urging force of the coil spring 53 at the other end in the guide portion 210c, and the shaft in the handle receiving seat 1 It is pressed against the inner peripheral surface of the hole 10. The key K may be removed from the cylinder lock 3 at this point, or may be left attached to the cylinder lock 3.

Then, when closing the door again and locking it, simply return the handle lever 2 from the open position to the closed position of the door, that is, 90 ° to the right from the position rotated 90 ° to the left when the door is opened. When the handle lever 2 is returned to the position directly below the operating shaft 21, the dead bolt 5 (tip) faces the lock groove 104 of the handle receiving seat 2 and is dead. The bolt 5 projects toward the lock groove 104 by the urging force of the coil spring 53 and is automatically engaged with the lock groove 104. At this time, one surface 501 of the dead bolt 5 in the recess 50 is brought into contact with the cam portion 41 returned to the predetermined standby position, and the cam portion 41 acts as a stopper for the dead bolt 5. Thus, the handle lever 2 is automatically locked (see FIG. 7 (1)). The key K may be removed at this point (from the cylinder lock 3). Since the handle lever 2 is automatically locked by a simple operation of returning the handle lever 2 in this way, it is not necessary to lock the key K on the cylinder lock 3, and it is possible to prevent forgetting to lock the key K on the cylinder lock 3. Can be done.

As explained above, with this lock handle H,
(1) A guide portion 210c is defined in which the peripheral wall portion of the receiving hole 210 of the operating shaft 21 communicates with the through hole 2120 and guides the dead bolt 5 to the lock groove 104 by sliding.
(2) A pin insertion portion 210d is formed on the surface of the guide portion 210c opposite to the lock unit 3 so as to communicate with the guide portion 210c and to be orthogonal to the sliding direction of the dead bolt 5, and the pin insertion portion 210d is formed. One end of the portion 210d is opened as a through hole 210e in the peripheral wall portion of the receiving hole 210 of the operation shaft 21, and a receiving groove 105 is formed on the inner peripheral surface of the shaft hole 10 of the handle receiving seat 1 facing the through hole 210e. Then, in the pin insertion portion 210d, a holding pin 21P having a stepped portion P4 on the peripheral surface is provided between the other end of the pin insertion portion 210d and the end portion of the holding pin 21P with the holding pin 21P as a normal state in the direction of the through hole 210e. It is arranged so as to protrude from the through hole 210e via the urging coil spring 21 g.
(3) The dead bolt 5 has a guide portion 210c on one side surface, and the dead bolt 5 is separated from the lock groove 104 in the cam portion 41 of the joint member 4 and is drawn into the receiving hole 210 of the operation shaft 21 in one direction. The holding pin 21P has a recess 50 on the other side surface, and the dead bolt 5 protrudes from the receiving hole 210 of the operation shaft 21 through the through hole 2120 and is inserted into the lock groove 104. A convex portion that engages with P4, immerses the holding pin 21P in the pin insertion portion 210d, retracts the stepped portion P4 of the holding pin 21P from the guide portion 210c, and allows sliding of the dead bolt 5 on the guide portion 210c. With the 54 and the dead bolt 5 detached from the lock groove 104 and pulled into the receiving hole 210 of the operating shaft 21, the stepped portion P4 of the holding pin 21P is fitted and the holding pin 21P is passed through the pin insertion portion 210d. A concave portion 55 that protrudes into the receiving groove 105 through the hole 210e, causes the step portion P4 of the holding pin 21P to enter the guide portion 210c, engages with the dead bolt 5, and restricts the sliding of the dead bolt 5 in the guide portion 210c. A coil spring 53 that urges the guide portion 210c in the direction of the through hole 2120 with the dead bolt 5 as a normal state is interposed between the end of the guide portion 210c opposite to the through hole 2120 and the end of the dead bolt 5. Therefore, it is arranged so as to protrude from the through hole 2120 in the guide portion 210c of the receiving hole 210.
With the above configurations (1)-(3),
(4) By inserting the key K into the lock unit 3 and rotating the key K from the locked position to the unlocked position, the cam portion 41 of the joint member 4 connected to the lock unit 3 and the dead bolt 5 are engaged with each other. As a result, the dead bolt 5 is pulled in in a predetermined direction and is released from the lock groove 104 while compressing the coil spring 53, and by pulling in the dead bolt 5, the stepped portion P4 of the holding pin 21P and the dead bolt 5 are separated. The engagement with the convex portion 54 is released, the step portion P4 of the holding pin 21P is fitted into the concave portion 55 of the dead bolt 5, and the holding pin 21P protrudes from the pin insertion portion 210d through the through hole 210e into the receiving groove 105. Then, the step portion P4 of the holding pin 21P is engaged with the concave portion 55 of the dead bolt 5 to restrict the sliding of the dead bolt 5, and (5) the handle lever 2 is doord from the state of (4) above. By rotating from the closed position to the open position, the clasp is released from the receiver, the door is unlocked, and the holding pin 21P is rotated in the circumferential direction along with the rotation of the operation shaft 21 to receive the groove 105. The holding pin 21P is immersed in the pin insertion portion 210d by being pushed off the inner peripheral surface of the shaft hole 10 of the handle receiving seat 1, and the step portion P4 of the holding pin 21P is retracted from the guide portion 210c. The engagement between the step portion P4 and the dead bolt 5 is released, and the sliding restriction of the dead bolt 5 is released.
(6) In the state of (5) above, that is, when the door is unlocked, the handle lever 2 remains in the open position of the door, and the key K inserted in the lock unit 3 is returned to the locked position to form a joint. The engagement between the cam portion 41 of the member 4 and the dead bolt 5 is released, and the dead bolt 5 is pushed out toward the through hole 2120 by the urging force of the coil spring 53 to form a shaft hole in the handle receiving seat 1. Pressed against the inner peripheral surface of 10
(7) From (6) above, when the door is closed and the door is locked, the handle lever 2 is rotated from the open position to the closed position of the door so that the dead bolt 5 faces the lock groove 104 and is coiled. The urging force of the spring 53 automatically projects and engages with the lock groove 104 to automatically lock the handle lever 2.
I made it.
As a result, when the door is closed and locked, the handle lever 2 can be automatically locked by simply returning the handle lever 2 to its original position (that is, from the open position of the door to the closed position). It is possible to omit the operation of and prevent forgetting to lock the key K.

Also, with this lock handle H,
(A) The dead bolt 5 has a substantially square columnar shape, one end is a flat surface 51, the other end is provided with a spring receiving portion 52, and the center is formed in a substantially U-shaped cross section on one side surface and has a recess 50. The other side surface is formed with a substantially U-shaped cross section on the other end side slightly from the center, and has a concave portion 55 at the substantially center and a convex portion 54 on the other end side.
(B) The holding pin 21P has a substantially columnar shape, one end of which is a hemispherical surface P1, the other end of which is provided with a spring receiving portion P2, and the other end of which is formed to have a large diameter and has a stepped portion P4.
(C) The recess 50 on one side surface of the dead bolt 5 is operatively connected to the cam portion 41 of the joint member 4 connected to the lock unit 3, and the handle lever 5 is locked by the lock unit 3 at the closed position of the door. When there is, the cam portion 41 of the joint member 4 is brought into contact with one side surface 501 in the recess 50 of the dead bolt 5 at a predetermined standby position in the operation shaft 21, and the key K is inserted into the key hole 30 of the lock unit 3. By inserting the key K and rotating the key K from the lock position to the unlock position, the cam portion 41 of the joint member 4 presses the one side 501 of the dead bolt 5 by its eccentric rotation, and the dead bolt 5 is predetermined. While being pulled in one direction and compressing the coil spring 53, it is released from the lock groove 104 of the handle receiving seat 1, and the key K of the lock unit 3 is locked from the state where the handle lever 2 is rotated to the open position of the door. By returning to, the cam portion 41 of the joint member 4 is returned to a predetermined standby position in the operation shaft 2 and is brought into contact with the other surface 502 on one side in the recess 50 of the dead bolt 5, and the dead bolt 5 is a coil spring. The urging force of 53 presses against the inner peripheral surface of the shaft hole 10 of the handle receiving seat 1, and from this state, the handle lever 2 is further returned from the open position of the door to the closed position of the door, so that the dead bolt 5 receives the handle. It faces the lock groove 104 of the seat 1 and is engaged with the lock groove 104 by the urging force of the coil spring 53.
(D) The convex portion 54 and the concave portion 55 on the other side surface of the dead bolt 5 are operatively connected to the step portion P4 of the holding pin 21P of the pin insertion portion 210d, and the handle lever 2 is in the closed position of the door to lock the lock unit 3. When locked by, the step portion P4 of the holding pin 21P is pressed from above at the lower part of the convex portion 54 of the dead bolt 5, and the holding pin 21P is immersed in the pin insertion portion 210d from the through hole 210e and the holding pin 21P. The step portion P4 is retracted from the guide portion 210c, the dead bolt 5 is allowed to slide in the guide portion 210c, and the handle lever 5 is locked by the lock unit 3 at the closed position of the door. By inserting the key K into the hole 30 and rotating the key K from the locked position to the unlocked position, the dead bolt 5 is pulled into the guide portion 210c, and the recessed portion 55 of the dead bolt 5 has a stepped portion of the holding pin 21P. P4 is fitted and inserted, the holding pin 21P protrudes from the pin insertion portion 210d through the through hole 210e to the receiving groove 105, and the stepped portion P4 of the holding pin 21P enters the guide portion 210c to enter the concave portion of the dead bolt 5. It is assumed that the dead bolt 5 is restricted from sliding in the guide portion 210c by engaging with the 55.
As a result, the auto-lock mechanism can be configured at low cost with a simple structure having a small number of parts.
Furthermore, with this lock handle H,
A slide cap 22 for covering the lock unit 3 housed in the receiving hole 210 is also provided on the base end surface of the operating shaft 21.
I made it.
As a result, the design of the entire lock handle H can be well maintained.

In the above embodiment, the lock groove 104 is formed on the inner peripheral surface of the shaft hole 10 of the handle receiving seat 1 so that the dead bolt 5 can be inserted and removed. However, the lock hole 104 is formed instead of the lock groove 104. It may be formed.
Even in this way, the same effects as those of the above embodiment can be obtained.

H Lock handle for doors with auto-lock function 1 Handle receiving seat 10 Shaft hole 101 Small diameter part 103 Large diameter part 104 Lock groove 105 Receiving groove 11 Cylinder part 110 Nut 111 Thread 12 Flange part 106 Groove 107 O-ring p Packing 120 Seat surface 121 Mounting boss 13 Cylinder 2 Handle lever 20 Grip 21 Operation shaft 210 Receiving hole 210a Circular hole 210b Circular hole 210c Guide part (square groove)
210d Pin insertion part 210e Through hole 21P Holding pin P1 Hemispherical P2 Spring receiving part P3 Upper part P4 Lower part (step part)
21g Coil spring 211 Small diameter part 211a Square shaft part 211b Screw hole 211s Mounting screw 214 Groove 214a O-ring S Spacer N nut 212 Medium diameter part 2120 Through hole 213 Large diameter part 22 Slide cap 221 Mounting boss 223 Coil spring 224 Mounting screw 3 lock Unit (cylinder lock)
30 Key hole 31 Rotor K Key 4 Joint member 41 Cam part 42 Connecting part 5 Dead bolt 50 Recessed part 501 One side one side 502 One side other side 51 Flat surface 52 Spring receiving part 53 Coil spring 54 Convex part 55 Concave part D door D0 mounting hole d0 hole

Claims (3)

A handle seat that has a shaft hole and is pierced between the front and back of the door, and a fixed frame side that is rotatably inserted into the shaft hole of the handle seat and is on the tip side that is the back side of the door. A stopper is attached to the receiving metal of the door, and a receiving hole is formed by opening the base end surface at the base end portion on the front side of the door, and the door is formed from the base end portion side of the operation shaft. It has a handle lever consisting of a grip extending along the front surface of the door, a lock unit in which a key hole is exposed on the base end surface of the operation shaft and mounted in a receiving hole of the operation shaft, and a cam portion at the tip thereof. A joint member that is rotatably connected to the rotor of the lock unit in the receiving hole of the operation shaft and is formed on the peripheral wall portion of the receiving hole by being engaged with the cam portion of the joint member in the receiving hole. It is removably arranged in a lock groove or a lock hole formed on the inner peripheral surface of the shaft hole of the handle seat through the through hole, and the lock groove is inserted through the joint member by the rotation of the rotor of the lock unit. Alternatively, the lock hole is provided with a dead bolt that is driven so as to be removable, and the clasp on the door side is engaged with and detached from the receiver on the fixed frame body side by rotating the handle lever to the closed position or the open position of the door. For doors that insert and remove the dead bolt into the lock groove or lock hole and lock or unlock the handle lever by inserting the key into the lock unit and rotating the key to the lock position or unlock position. At the lock handle
A guide portion is defined on the peripheral wall portion of the receiving hole of the operating shaft so as to communicate with the through hole and guide the dead bolt to the lock groove or the lock hole by sliding.
A pin insertion portion is formed on the surface of the guide portion opposite to the lock unit so as to communicate with the guide portion and to be orthogonal to the sliding direction of the dead bolt, and one end of the pin insertion portion. Is opened as a through hole in the peripheral wall portion of the receiving hole of the operation shaft, and a receiving groove is formed on the inner peripheral surface of the shaft hole of the handle receiving seat facing the through hole to form a receiving groove in the pin insertion portion. A holding pin having a stepped portion on the peripheral surface is provided between the other end of the pin insertion portion and the end portion of the holding pin via a coil spring that urges the holding pin in the normal direction of the through hole. Arranged so that it can protrude from the through hole,
The dead bolt is attached to one side surface, the guide portion, the cam portion of the joint member, and the dead bolt is released from the lock groove or the lock hole and is drawn into the receiving hole of the operation shaft only in one direction. It has an engageable recess, and on the other side surface, the dead bolt protrudes from the receiving hole of the operating shaft through the through hole and is inserted into the lock groove or the lock hole, and is inserted into the step portion of the holding pin. A convex portion that engages, causes the holding pin to be immersed in the pin insertion portion, retracts the step portion of the holding pin from the guide portion, and allows the dead bolt to slide on the guide portion, and the above. With the dead bolt disengaged from the lock groove or lock hole and pulled into the receiving hole of the operating shaft, the step portion of the holding pin is fitted and the holding pin is passed through the through hole from the pin insertion portion. It has a concave portion that protrudes into the receiving groove, causes the step portion of the holding pin to enter the guide portion, engages with the dead bolt, and restricts the sliding of the dead bolt in the guide portion. A coil spring that urges the guide portion in the through hole direction with the dead bolt as a normal state is interposed between the end of the guide portion on the opposite side of the through hole and the end of the dead bolt to form the receiving hole. Arranged in the guide portion so as to protrude from the through hole,
By inserting the key into the lock unit and rotating the key from the lock position to the unlock position, the cam portion of the joint member connected to the lock unit engages with the dead bolt to cause the dead. The bolt is pulled in in one direction and is released from the lock groove or the lock hole while compressing the coil spring, and by pulling in the dead bolt, the stepped portion of the holding pin and the convex portion of the dead bolt are formed. The engagement of the holding pin is disengaged, the step portion of the holding pin is fitted into the concave portion of the dead bolt, the holding pin is projected from the pin insertion portion through the through hole into the receiving groove, and the step portion of the holding pin is projected. The portion is engaged with the concave portion of the dead bolt to regulate the sliding of the dead bolt.
By rotating the handle lever from the closed position to the open position of the door, the clasp is released from the receiver, the door is unlocked, and the holding pin rotates with the rotation of the operation shaft. Rotated in the direction, disengaged from the receiving groove, and pressed against the inner peripheral surface of the shaft hole of the handle receiving seat so as to be immersed in the pin insertion portion, and the step portion of the holding pin is ejected from the guide portion. As a result, the engagement between the stepped portion of the holding pin and the dead bolt is released, and the sliding restriction of the dead bolt is released.
When the door is unlocked, the handle lever remains in the open position of the door, and the key inserted into the lock unit is returned to the locked position to bring the cam portion of the joint member and the dead bolt together. When the engagement is released, the dead bolt is pushed out toward the through hole by the urging force of the coil spring, and is pressed against the inner peripheral surface of the shaft hole in the handle receiving seat.
When the door is closed and the door is locked, the handle lever is rotated from the open position to the closed position of the door, so that the dead bolt is opposed to the lock groove or the lock hole by the urging force of the coil spring. Automatically projecting and engaging with the lock groove or lock hole to auto-lock the handle lever.
A lock handle for doors with an auto-lock function. The dead bolt has a substantially square columnar shape, one end is a flat surface, the other end is provided with a spring receiving portion, the center is formed in a substantially U-shaped cross section on one side surface, and the other side surface has a recess from the center. The other end side is formed in a substantially U-shaped cross section, and has a concave part in the center and a convex part on the other end side.
The holding pin has a substantially columnar shape, one end is a hemispherical surface, the other end is provided with a spring receiving portion, and the other end side is formed with a large diameter to have a stepped portion.
The recess on one side of the dead bolt is operatively connected to the cam portion of the joint member connected to the lock unit, and when the handle lever is locked by the lock unit at the closed position of the door, the recess is said to be in the operating shaft. The cam portion of the joint member is brought into contact with one side of the recess of the dead bolt at a predetermined standby position, a key is inserted into the key hole of the lock unit, and the key is rotated from the lock position to the unlock position. As a result, the cam portion of the joint member presses one side of the dead bolt by its eccentric rotation, and the dead bolt is pulled in the one direction to compress the coil spring while locking the handle seat. By returning the key of the lock unit to the lock position from the state where the handle lever is rotated to the open position of the door after being separated from the groove or the lock hole, the cam portion of the joint member is designated in the operation shaft. It is returned to the standby position and abuts on one side and the other surface in the recess of the dead bolt, and the dead bolt is pressed against the inner peripheral surface of the shaft hole of the handle bearing by the urging force of the coil spring. Further, by returning the handle lever from the open position of the door to the closed position of the door, the dead bolt is opposed to the lock groove or the lock hole of the handle seat, and the lock groove is caused by the urging force of the coil spring. Or engaged in the lock hole,
When the convex portion and the concave portion on the other side surface of the dead bolt are operatively connected to the step portion of the holding pin of the pin insertion portion and the handle lever is locked by the lock unit at the closed position of the door. The stepped portion of the holding pin is pressed from above at the lower part of the convex portion of the dead bolt, the holding pin is immersed in the pin insertion portion through the through hole, and the stepped portion of the holding pin exits from the guide portion. The dead bolt is allowed to slide in the guide portion , and the key is inserted into the key hole of the lock unit from the state where the handle lever is locked by the lock unit at the closed position of the door. By rotating the dead bolt from the lock position to the unlock position, the dead bolt is pulled into the guide portion, and the step portion of the holding pin is fitted into the concave portion of the dead bolt, and the holding pin is inserted into the pin. Along with projecting from the insertion portion to the receiving groove through the through hole, the step portion of the holding pin enters the guide portion and engages with the concave portion of the dead bolt, and the dead bolt slides in the guide portion. The movement is regulated,
The lock handle for a door with an auto-lock function according to claim 1. The lock handle for a door with an auto-lock function according to claim 1 or 2, wherein the base end surface of the operation shaft is also provided with a slide cap for covering the lock unit housed in the receiving hole.

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