JP7249034B2 - lock handle device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock handle device used for doors and fittings used in warehouses, etc. in consideration of airtightness and soundproofing.

In the lock handle device, the inner and outer operation handles are fixed to both ends of a handle rotation shaft passing through the inside and outside of the door, and when the door is closed, the lock engaging member protrudes from the door and is provided on the door frame by operating one of the operation handles. It is locked by engaging with the lock receiving portion (see, for example, Patent Document 1).

In the lock handle device disclosed in Patent Literature 1, locking handles (operating handles) are provided inside and outside the door, and are mounted on the door while being supported by a handle support case.
A handle shaft (handle rotation shaft) passing through the inside and outside of the door connects and integrally supports the inside and outside locking handles, and a lock bar (lock engaging member) is integrally fitted to the handle shaft. there is

When one of the locking handles is operated to lock the door when the door is closed, the lock rod comes out of the handle support case due to the rotation of the handle shaft, protrudes outside the door tip, and is inserted into the receiving groove (lock receiving part) provided in the door frame. locked.

When the locking handle is in the locked position and in the locked state, the lock bar is inserted into the receiving groove and engages with the recess at the back of the receiving groove so that it will not come off even if there is vibration. .

However, in the lock handle device disclosed in Patent Document 1, when the locking handle is unlocked, the lock rod is accommodated in the handle support case and does not protrude to a position where it can be inserted into the receiving groove of the door frame. Since no restricting means is disclosed, the locking handle and lock bar are free to rotate when the door is opened.

Therefore, when the door is opened, the lock bar may protrude to a position where it can be inserted into the receiving groove. There is a risk of damaging the door frame.
In addition, there is also a problem that clothes or the like are caught on the locking rod protruding from the door.

Therefore, there is an example of preventing the lock engaging member from projecting and colliding with the doorway frame when the door is opened by restricting the rotation of the operating handle at the unlocked position (see Patent Document 2).

Japanese Patent Application Laid-Open No. 2001-279963 JP 2017-066815 A

The operating handle disclosed in Patent Document 2 is rotatably fitted to the outer periphery of a shaft portion fixed to a door, and a handle portion fixing shaft provided in the operating handle is attached to the shaft portion at a locked position and an unlocked position. The rotation of the operating handle is restricted by engaging with the formed concave portion.

However, the operating handle disclosed in Patent Document 2 is of a structure that is attached only to one side of the inner and outer side surfaces of the door, and a pair of inner and outer operating handles are connected by a common pivot shaft so that either operating handle Since the structure is fundamentally different from the structure of the present invention in which locking and unlocking can be performed by operating , the structure for restricting rotation of the operating handle disclosed in Patent Document 2 cannot be applied at all.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and its object is to provide a pair of inner and outer operating handles that prevent the lock engaging member from protruding to a position where the lock receiving portion can be engaged when the door is opened. The purpose is to provide a lock handle device that is more efficient.

In order to achieve the above object, the present invention
a swingable door for opening and closing an opening in the doorway frame;
a pair of inner and outer pedestals respectively fixed to the inner and outer side surfaces of the door;
a pair of cylindrical members rotatably supported by the pair of pedestals with their respective rotation center axes coaxial;
a handle rotation shaft having both ends fitted to the pair of cylindrical members and passing through the door along the rotation center axis;
a pair of inner and outer operation handles each having a rotation base fixed to each of the pair of cylindrical members and rotated along each of the pair of pedestals;
a lock engaging member protruding from a rotation base of at least one of the operating handles;
When the door is closed, by rotating the operation handle to the lock position, the lock engaging member engages with a lock receiving portion provided on the doorway frame to establish a locked state,
A lock handle device in which the lock engaging member is disengaged from the lock receiving portion to be in an unlocked state by rotating the operating handle to an unlocked position,
a slide bar axially slidably penetrating the center of the handle rotation shaft;
slide bar biasing means for biasing the slide bar in one axial direction;
a locking member that axially moves together with the slide bar and rotates together with the cylindrical member;
a trigger operating member provided on each of the pair of operating handles;
a trigger conversion mechanism that converts the actuation of the trigger operating member into axial movement of the slide bar against the biasing force of the slide bar biasing means;
When the operating handle is at the locked position or the unlocked position, the locking member, which is moved in the axial direction by being biased by the slide bar biasing means, is locked to the pedestal to restrict its rotation. Provided is a lock handle device characterized by forming a locked portion that

According to this configuration, when the operating handle is at the locked position or the unlocked position, the slide bar is biased by the slide bar biasing means to move in one direction, and the locking member moves together to form the slide bar on the pedestal. Rotation of the operating handle is restricted through the tubular member together with the locking member by being locked to the locked portion and restricted from rotating.
By operating the trigger operating member, the slide bar moves in the other direction against the biasing force of the slide bar biasing means via the trigger conversion mechanism, and the locking member moves together to lock the locked portion. is released, the rotation restriction of the operating handle is released through the cylindrical member together with the locking member.

When the operating handle is in the locked position and in the locked state when the door is closed, the trigger operating member is operated to unlock the locking member from the locked portion, and the operating handle is rotated to the unlocked position. When the lock is released, the locking member is moved by the slide bar urging means and locked to the locked portion formed on the pedestal, thereby restricting the rotation of the operating handle. The operating handle is maintained at the unlocked position, and the lock engaging member is maintained in a state of being disengaged from the lock receiving portion of the door frame. , the lock engaging member will not collide with the door frame and damage the lock engaging member and the door frame.

Further, when the operating handle is in the locked position and the lock engaging member is engaged with the lock receiving portion to be in the locked state, the locking member is locked to the locked portion and the trigger operating member is not operated. Since the rotation of the operation handle is restricted as long as possible, it is possible to prevent the operation handle from being unintentionally rotated or from being unlocked due to the rotation of the operation handle due to impact or vibration.

A locking member that rotates together with the cylindrical member and is movable in the axial direction of the central axis of rotation is moved by the biasing force of the slide bar biasing means between the lock position and the unlock position of the operating handle. When the trigger operating member is operated in a state where the locking member is locked to the locked portion, the slide bar and the locking member are integrated with each other via the trigger conversion mechanism. The slide bar urging means is moved against the urging force of the slide bar urging means to release the engagement of the locking member with the engaged portion, thereby permitting the rotation of the operating handle. , the operability of the trigger operation member can be improved with a simple structure.

In a preferred embodiment of the invention,
A handle biasing means is provided for biasing the operating handle toward the unlocked position.

According to this configuration, since the handle biasing means is provided to turn and bias the operating handle in the direction toward the unlocked position, when the operating handle is between the locked position and the unlocked position, the operating handle The urging force of the urging means rotates toward the unlocked position, and when the door is opened, the operating handle naturally rotates to the locked position and the lock engaging member can engage with the lock receiving portion. It is possible to avoid the situation of protruding and colliding with the door frame.

In a preferred embodiment of the invention,
The operation handle is a rod-shaped handle extending perpendicularly to the rotation center axis from the tubular member,
A trigger operating member that operates on the trigger operating member via a link member is supported by the operating handle so as to be slidable in a direction perpendicular to the central axis of rotation,
extension members connected to both ends of the slide bar and extending axially outward are formed with conical surfaces facing the biasing direction of the slide bar biasing means;
The trigger conversion mechanism is operated by operating the trigger operating member to slide the trigger operating member through the link member, and the tip of the trigger operating member presses the conical surface of the extension member. The slide bar is moved in the other direction against the biasing force of the slide bar biasing means.

According to this configuration, the trigger conversion mechanism operates by operating the trigger operating member, sliding the trigger operating member through the link member, and pressing the tip of the trigger operating member against the conical surface of the extension member. By moving the slide bar in the other direction against the biasing force of the slide bar biasing means, the operation of the trigger operating member is converted into the movement of the slide bar with a simple structure to release the locking by the locking member. , the operation handle can be allowed to rotate.

In a preferred embodiment of the invention,
The extension member has a fitting portion that is slidably fitted to the tubular member,
The locking member is a pin-shaped member that penetrates one of the fitting portions perpendicularly to the central axis,
The engaging member has an end protruding through the fitting portion which is axially slidably fitted into an elongated hole of one of the cylindrical members, thereby engaging the pair of cylindrical members. rotates with
At the rotation angle of the locking member when the operating handle is at each of the locked position and the unlocked position, the end portion of the locking member that is fitted into and penetrates the elongated hole of the tubular member It can be locked to the locked portion by the biasing force of the slide bar biasing means.

According to this configuration, the pin-shaped locking member that penetrates the fitting portion that is slidably fitted to the tubular member of one of the extension members perpendicularly to the central axis has an end protruding from the fitting portion. is axially slidably fitted into an axially elongated hole of one of the tubular members, rotates together with the tubular member, and is fitted into the elongated hole of the tubular member of the locking member. When the operating handle is at the locked position and the unlocked position, the jointed and penetrated end can be locked to the locked portion, so that it rotates together with the cylindrical member and is axially relative to the locked portion. A movable locking member can be moved by the biasing force of the slide bar biasing means and locked to the locked portion at each of the locked position and the unlocked position of the operating handle.

When the trigger operating member is operated in a state where the locking member is locked to the locked portion, the slide bar and the locking member resist the biasing force of the slide bar biasing means via the trigger conversion mechanism. to release the locking of the locking member from the locked portion, thereby permitting the rotation of the operating handle.

In a preferred embodiment of the invention,
The trigger operating member is swingably attached to the operating handle,
Both end portions of the rod-shaped link member are pivotally supported by the swing tip portion of the trigger operating member and the base end portion of the trigger operating member, respectively. The trigger operating member is moved in a direction perpendicular to the central axis of rotation.

According to this configuration, the swinging motion of the trigger operating member moves the trigger operating member in the direction orthogonal to the central axis of rotation via the link member. The operation member can be swung, and the trigger operation member can be easily operated, which is convenient.

In a preferred embodiment of the invention,
A roller is attached to the tip of the trigger operating member, and the roller contacts and presses the conical surface of the extension member.

According to this configuration, a roller is attached to the tip of the trigger operating member, and the roller presses the conical surface of the extension member while rolling in contact therewith, so that the trigger conversion mechanism operates smoothly and the trigger operating member to facilitate the operation of

According to the present invention, when the operating handle is in the locked position and in the locked state when the door is closed, the trigger operating member is operated to unlock the locking member from the locked portion, thereby unlocking the operating handle. When the lock is released by turning to the position, the locking member is moved by the slide bar urging means and is locked to the locked portion formed on the pedestal, thereby restricting the rotation of the operating handle. Even if the door is opened, the operating handle is maintained at the unlocked position, and the lock engaging member is disengaged from the lock receiving portion of the door frame. This prevents the lock engaging member from colliding with the door frame and damaging the lock engaging member and the door frame.

Further, when the operating handle is in the locked position and the lock engaging member is engaged with the lock receiving portion to be in the locked state, the locking member is locked to the locked portion and the trigger operating member is not operated. Since the rotation of the operation handle is restricted as long as possible, it is possible to prevent the operation handle from being unintentionally rotated or from being unlocked due to the rotation of the operation handle due to impact or vibration.

A locking member that rotates together with the cylindrical member and is movable in the axial direction of the central axis of rotation is moved by the biasing force of the slide bar biasing means between the lock position and the unlock position of the operating handle. When the trigger operating member is operated in a state where the locking member is locked to the locked portion, the slide bar and the locking member are integrated with each other via the trigger conversion mechanism. The slide bar urging means moves against the urging force of the slide bar urging means to release the locking of the locking member with the locked portion, thereby permitting the rotation of the operating handle. can improve the operability of the trigger operating member.

1 is an inside front view of a door and a doorway provided with a lock handle device according to an embodiment of the present invention when the door is closed, as viewed from the inside of the room; FIG. It is an inside front view of the same lock handle device at the time of closing a door. FIG. 3 is a plan view of the same lock handle device showing a cross section of the door and the like when the door is closed as viewed from the arrow III-III in FIG. 2; It is a partial side view of the vertical frame part of a doorway frame. It is an exploded perspective view of the lock handle device. It is an inside front view of an inner side seat. FIG. 3 is a cross-sectional view of the inner operating handle taken along line VII-VII in FIG. 2; FIG. 3 is a cross-sectional view of the same lock handle device taken along the line VIII-VIII in FIG. 2; FIG. 4 is a cross-sectional view of the same lock handle device taken along the line IX-IX in FIG. 3; FIG. 5 is a cross-sectional view of the inner operating handle after actuation of the trigger operating member; It is a sectional view of the lock handle device after actuation of the trigger operating member of the inner operating handle. It is a sectional view of the lock handle device after actuation of the trigger operating member of the outer operating handle. It is another sectional view of the same lock handle device after actuation of the trigger operating member.

An embodiment according to the present invention will be described below with reference to FIGS. 1 to 12. FIG.
FIG. 1 is an inside front view of a door 8 and a doorway 4 provided with a lock handle device 10 according to an embodiment to which the present invention is applied, viewed from the inside of the room when the doors are closed.
The door 8 according to this embodiment is a single door.

The main door 8 is an airtight door used in a large building such as a warehouse, a soundproof room, etc. The doorway 4 is partitioned by a doorway frame 5 on an inner wall 3 erected from the floor 2 of the building to form a rectangular open doorway 4. A door 8 supported by a doorway frame 5 via hinges 6 swings to open and close the doorway 4. - 特許庁
The door 8 is swung outward to open the doorway 4. - 特許庁
A cushion member 7 is stretched around the doorway frame 5, and when the door is closed, the peripheral protrusion 8p of the door 8 is pressed by the cushion member 7 to airtightly close the doorway 4 (see FIG. 3).

In the lock handle device 10, an inner pedestal 11 and an outer pedestal 51 are secured to the inner side 8i and the outer side 8o of the door 8 at predetermined positions near the door tip 8a at predetermined heights.
The inner pedestal 11 is composed of a cylindrical support portion 11a having a flat cylindrical shape and a mounting seat portion 11b formed by expanding the cylindrical end portion of the cylindrical support portion 11a into a flange shape. 8i is imposed at a predetermined position.

The outer pedestal 51 is composed of a cylindrical support portion 51a and a mounting seat portion 51b, and is formed substantially in plane symmetry with the inner pedestal 11. be.
The cylindrical support portions 11a and 51a projecting from the mounting seat portions 11b and 51b of the inner pedestal 11 and the outer pedestal 51 have somewhat tapered outer peripheral surfaces.

The inner pedestal 11 and the outer pedestal 51, which are generally plane-symmetrical to each other, are mounted plane-symmetrically on the inner and outer side surfaces 8i and 8o of the door 8. is coaxial with the rotation center axis Lc, which is the center axis of the cylinder (see FIG. 5).

As shown in FIG. 3, the inner operating handle 15 is attached along the end surface of the cylindrical support portion 11a of the inner pedestal 11 so as to be rotatable about the rotation center axis Lc, and the cylindrical support portion of the outer pedestal 51 is attached. Along the end surface of 51a, an outer operating handle 55 is attached so as to be rotatable around the rotation center axis Lc.
The inner operating handle 15 and the outer operating handle 55 are rod-shaped handles.

As shown in FIG. 8, a pair of the inner operating handle 15 and the outer operating handle 55 are rotated integrally via a common handle rotation shaft 31 provided on the rotation center axis Lc, and are always rotated in the same manner. in a dynamic angular position.

A lock roller 18, which is a lock engaging member, protrudes from the outer periphery of the rotation base portion 16a of the inner operating handle 15. As shown in FIG.
The lock roller 18 is rotatably supported by a support shaft 18a projecting from the outer periphery of the rotation base 16a in a direction orthogonal to the rotation center axis Lc (see FIGS. 2 and 4).

A rod-shaped inner operation handle 15 and an outer operation handle 55 of the lock handle device 10 provided near the door end 8a of the door 8 can be vertically swung. When the rotation base 16a of the handle 15 is rotated (rotated to the right when viewed from the inside in the front view of FIG. 2), the lock roller 18 rotates and protrudes toward the doorway frame 5 (indicated by the solid line in FIG. 2), and is reversely operated inside. When one of the handle 15 and the outer operation handle 55 is swung upward, the rotation base 16a is rotated (leftward when viewed from the inside in FIG. 2) to rotate the lock roller 18, thereby rotating the door end 8a. (indicated by a chain double-dashed line in FIG. 2).

The vertical frame portion 5a of the doorway frame 5 forming the doorway 4, which faces the door edge 8a of the door 8, has a vertically elongated rectangular roller socket 19h into which the lock roller 18 protruding toward the doorway frame 5 can be inserted. A receiving member 19 is attached.

As shown in FIG. 4, the vertically long rectangular roller receiving opening 19h of the lock receiving member 19 has the lower half of the outer vertical side 19v of the inner and outer vertical sides inclined outward, so that the revolving lock roller 18 is When inserted into the roller socket 19h, the lock roller 18 rolls in contact with the outer vertical side 19v and engages so as to move from the inclined surface of the lower half of the outer vertical side 19v to the vertical surface of the upper half. As a result, the door 8 is pressed to the closing side, and the peripheral ridges 8p of the door 8 are strongly pressed by the cushion member 7, so that the doorway 4 can be closed airtightly in a locked state.

An exploded perspective view of the lock handle device 10 is shown in FIG.
5 and FIG. 6 which is an inner front view of the inner pedestal 11, on the open end side of the inner peripheral surface of the cylindrical support portion 11a of the inner pedestal 11, a pair of Circular grooves 11aa and 11aa are formed, and locked holes (locked portions) 11ac and 11ao are formed deeper in the axial direction at both ends of each circular arc groove 11aa.
A pair of small circular holes 11ah, 11ah are formed in the open end face of the cylindrical support portion 11a of the inner pedestal 11 at symmetrical positions with respect to the rotation center axis Lc.

Referring to FIG. 5, the outer pedestal 51 consisting of the other cylindrical support portion 51a and mounting seat portion 51b is mounted on the outer peripheral portion of the side wall 51bw where the mounting seat portion 51b extends radially from the circular hole of the cylindrical support portion 51a. protrudes in the axial direction of the rotation center axis Lc to form an outer peripheral frame 51bf, and the end surface of the outer peripheral frame 51bf forms a seat surface that faces the outer side surface 8o of the door 8. As shown in FIG.
Two stopper ribs 51bc and 51bo are formed on the side wall 51bw of the mounting seat portion 51b to extend from two predetermined positions of the outer peripheral frame 51bf toward the circular hole of the cylindrical support portion 51a.

The angle between the two stopper ribs 51bc and 51bo extending radially from the circular hole of the cylindrical support portion 51a formed in the mounting seat portion 51b of the outer pedestal 51 is the angle formed in the cylindrical support portion 11a of the inner pedestal 11. This angle is an angle that allows the inner operating handle 15 and the outer operating handle 55 to rotate, as will be described later.

Referring to FIG. 5, the inner operating handle 15 and the outer operating handle 55 have plane-symmetrical structures with each other except that the lock roller 18 is provided only on the inner operating handle 15 .
The structure of the inner operating handle 15 will be described below.
The inner operating handle 15 has a handle body 16 comprising a pivot base portion 16a and a handle grip portion 16b extending from the pivot base portion 16a.

The rotation base 16a has a circular hole 16ah penetrating along the rotation center axis Lc, and a lock roller 18 protrudes from the outer periphery.
Fixing holes 16h, 16h are formed in the rotation base 16a at symmetrical positions with respect to the rotation center axis Lc.

The handle grip portion 16b is formed by bending a rectangular flat plate at right angles to form a side plate 16ba and an upper plate 16bb. A rocking shaft 16bp and a cross shaft 16bq protrude from the inner surface of the side plate 16ba.
The cross support shaft 16bq has screw holes formed at both ends, and is located on both sides of the rocking support shaft 16bp.
The handle grip portion 16b is covered with grip covers 17, 17 from both sides and fixed to the cross support shaft 16bq by a set screw 17s.

A part of the trigger conversion mechanism 20 is provided inside the grip covers 17 , 17 .
7 and 9, a trigger operating member 21 is pivotally supported on a swing support shaft 16bp, and a portion of the handle grip portion 16b on the side of the rotation base 16a and the rotation base 16a are provided with a rotation base 16a. A trigger operating member 23 is slidably supported through a circular hole 16ah of the base portion 16a in a direction orthogonal to the rotation center axis Lc. Both ends of a rod-shaped link member 22 are pivotally supported on the ends.

As shown in FIGS. 9 and 10, the trigger operating member 21, whose swing base end is pivotally supported by the swing support shaft 16bp, has a lower portion protruding downward from the lower openings of the grip covers 17, 17 so as to be retractable. ing.
The coil portion of the torsion coil spring 21s is fitted to the swinging support shaft 16bp that supports the trigger operating member 21. One end of the torsion coil spring 21s is engaged with the cross support shaft 16bq, and the other end is engaged with the cross support shaft 16bq. It is engaged with the distal end portion of the trigger operating member 21 to urge the trigger operating member 21 to swing downward.

Therefore, as shown in FIG. 9, unless an external force is applied to the trigger operating member 21, the biasing force of the torsion coil spring 21s urges the trigger operating member 21 to swing downward, so that the lower openings of the grip covers 17, 17 are widened. It protrudes downward.
Via the link member 22, the trigger operating member 23 can slide in a direction perpendicular to the rotation center axis Lc. moving away.

As shown in FIG. 10, when the trigger operating member 21 is swung upward against the biasing force of the torsion coil spring 21s, the trigger operating member 23 approaches the rotation center axis Lc via the link member 22. move in the direction
A tip of the trigger operating member 23 protrudes into a circular hole 16ah of the rotation base 16a, and a roller 24 is attached to the tip.

The other outer operating handle 55 has a structure symmetrical to the inner operating handle 15, and includes a handle body 56 consisting of a pivot base portion 56a and a handle grip portion 56b, and a trigger operating member which is a part of a trigger conversion mechanism 60. 61, link member 62, trigger actuation member 63, roller 64 and torsion coil spring (not shown).
Note that there is no lock engagement member such as a lock roller on the rotation base portion 56a of the outer operating handle 55. As shown in FIG.

Referring to FIG. 5, the inner operating handle 15 passes through a circular hole 16ah of the rotating base portion 16a, and further passes through the cylindrical support portion 11a of the inner pedestal 11 and is rotatably supported on the cylindrical support portion 11a. A cylindrical member (tubular member) 12 is provided.

The cylindrical member 12 has a flange portion 12f at one end, and axially oriented grooves 12v are formed on the inner peripheral surface at four equal intervals in the circumferential direction.
Also, a pair of elongated holes 12e, 12e that are long in the axial direction are formed in the vicinity of the center in the axial direction of the cylindrical member 12 at symmetrical positions with respect to the rotation center axis Lc.
Further, fixing holes 12h, 12h are formed in the cylindrical member 12 near the flange portion 12f at symmetrical positions with respect to the rotation center axis Lc.

The cylindrical member 12 is passed through the circular hole 16ah of the rotation base 16a of the inner operating handle 15 at a predetermined relative angle, and when the flange 12f comes into contact with the side surface of the rotation base 16a, it is used for fixing the rotation base 16a. The hole 16h is aligned with the fixing hole 12h of the cylindrical member 12, and the inner operating handle 15 and the cylindrical member 12 are integrated by inserting the fixing pin 16p into the fixing holes 16h and 12h so as to straddle both sides. It can rotate.

The cylindrical member 12 penetrating through the circular hole 16ah of the rotary base 16a has a pair of long holes 12e, 12e at the portion protruding through the circular hole 16ah. , and the rotating base portion 16a of the inner operating handle 15 is placed on the opening end face of the cylindrical support portion 11a of the inner base 11, the inner operating handle 15 rotates to the inner base 11 via the cylindrical member 12. It is movably supported (see FIGS. 7 and 8).

When the annular stop member 13 is screwed to the end of the cylindrical member 12 fitted to the cylindrical support portion 11a of the inner pedestal 11, the flange portion 13f of the annular stop member 13 engages the cylindrical support portion 11a of the inner pedestal 11. The cylindrical member 12 is opposed to the opening end face and is restricted from coming out of the cylindrical support portion 11a of the inner pedestal 11, and the flange portion 13f of the annular stop member 13 and the flange portion 12f of the cylindrical member 12 hold the inner pedestal. The inner operating handle 15 is axially positioned by sandwiching the cylindrical support portion 11a of 11 and the rotating base portion 16a of the inner operating handle 15. As shown in FIG.

Referring to FIG. 5, a handle rotating shaft 31 which is on the rotating central axis Lc and which connects the inner operating handle 15 and the outer operating handle 55 has a prism shape having a central shaft hole 31c.
One end of this handle rotating shaft 31 is fitted into the end of the cylindrical member 12 .

The four corners of the prism-shaped handle rotation shaft 31 are fitted into the four axially oriented grooves 12v formed on the inner peripheral surface of the cylindrical member 12, thereby forming the handle rotation shaft 31. The cylindrical member 12 rotates together.
Since the cylindrical member 12 and the inner operating handle 15 rotate integrally via the fixing pin 16p, the handle rotating shaft 31, the cylindrical member 12 and the inner operating handle 15 rotate integrally.

The other end of the handle rotating shaft 31 is formed with a pair of fixing holes 31g, 31g formed on corresponding side surfaces, and another pair of fixing holes 31h, 31h formed on corresponding side surfaces. is formed at a position away from the fixing holes 31g, 31g in the axial direction.

An annular rotation restricting member 32 is fitted to the position of the pair of fixing holes 31h, 31h of the handle rotation shaft 31. As shown in FIG.
The rotation restricting member 32 has a projection engaging portion 32p protruding from the annular outer peripheral surface, and the projection engaging portion 32p has an engaging portion formed by bending the distal end thereof in the axial direction.

Axially oriented grooves 32v are formed on the inner peripheral surface of the rotation restricting member 32 at four equal intervals in the circumferential direction. When the handle rotation shaft 31 is inserted to a predetermined position, the pair of fixing holes 32h, 32h formed in the rotation restricting member 32 engages the handle rotation shaft 31. By screwing the fixing screw 32s into the fixing holes 31h and 31h so as to straddle both of them, the rotation restricting member 32 can be rotated integrally with the handle rotating shaft 31. can be moved (see FIG. 8).

A rod-shaped slide bar 33 is slidably passed through the center shaft hole 31c of the handle rotation shaft 31. As shown in FIG.
The slide bar 33 is located on the rotation center axis Lc, and extension members 25 and 65 are connected to both ends of the slide bar 33 and extend outward in the axial direction.

The extension member 25 on the side of the inner operation handle 15 is integrally formed by connecting a conical body portion 26 and a cylindrical body portion 27 with a connecting central shaft 25a, and protruding from the cylindrical body portion 27 with a projecting central shaft 25b. The body portion 26 and the cylindrical body portion 27 have an outer diameter substantially equal to the inner diameter of the cylindrical member 12 and are slidable within the cylindrical member 12 (see FIGS. 7 and 11).
The conical portion 26 has a conical surface 26t on the surface facing the cylindrical portion 27. As shown in FIG.
A through hole 27h is formed in the cylindrical body portion 27 so as to extend therethrough in the diametrical direction.

7 and 8, which are cross-sectional views of the lock handle device 10, the end of the projecting central shaft 25b projecting from the cylindrical body portion 27 is connected to the end of the slide bar 33. As shown in FIG.
The extension member 25 is slidably positioned within the cylindrical member 12, with the connecting central axis 25a and the protruding central axis 25b on the rotation central axis Lc of the slide bar 33 (see FIGS. 8 and 12). ).
The flange portion 12f of the cylindrical member 12 is covered with a lid member 29 to cover the inner peripheral surface.

When the extension member 25 is assembled, a locking pin 28 as a locking member is passed through the through hole 27h of the cylindrical body portion 27. As shown in FIG.
That is, when the cylindrical member 12 is passed through the circular hole 16ah of the rotating base portion 16a of the inner operating handle 15, the extension member 25 is inserted into the cylindrical member 12, and the through hole 27h of the cylindrical body portion 27 is made cylindrical. With the extension member 25 aligned with the long hole 12e of the cylindrical member 12 and the locking pin 28 passing through both the long hole 12e of the cylindrical member 12 and the through hole 27h of the cylindrical body 27, The rotation base portion 16a of the inner operating handle 15 is placed on the cylindrical support portion 11a of the inner pedestal 11. As shown in FIG.
In addition, the locking pin 28 is retained by the cylindrical body portion 27 by a retaining member 28s (see FIG. 8).

At this time, both ends of the locking pin 28 projecting through the elongated hole 12e of the cylindrical member 12 are inserted into the pair of arcuate grooves 11aa, 11aa formed in the inner peripheral surface of the cylindrical support portion 11a of the inner pedestal 11. Engage each.
Therefore, the locking pin 28 is axially movable within the axial width of the elongated hole 12e through the elongated hole 12e of the cylindrical member 12 together with the extension member 25, and is axially movable within the angular range of the arcuate groove 11aa. 12 is rotatable.

The circular arc groove 11aa of the cylindrical support portion 11a of the inner pedestal 11 is formed with locking holes 11ac and 11ao deeper in the axial direction at both ends, so that the locking pin 28 is positioned at the same axial position as the circular arc groove 11aa. When it can rotate within the angle range of the arcuate groove 11aa at a certain time, and when it is in the rotation position corresponding to either of the locked holes 11ac and 11ao at both ends of the arcuate groove 11aa, it is within the axial width of the long hole 12e. can move in the axial direction together with the extension member 25 (and the slide bar 33). Rotation is restricted together with the operating handle 15).

When the rotation base portion 16a of the inner operating handle 15 is placed on the cylindrical support portion 11a of the inner pedestal 11, the small circular holes 11ah and 11ah formed in the opening end face of the cylindrical support portion 11a are fitted with coil springs. Insert detent pins 14, 14 along with 14s, 14s (see Fig. 5).
The head of the detent pin 14 urged by the coil spring 14s is pressed against the side surface of the rotation base 16a of the inner operation handle 15, and the rotation of the inner operation handle 15 is restricted to a rotation position (lock position Pc to be described later). , unlocked position Po), the head of the detent pin 14 fits into a recess 16v formed in the side surface of the pivot base 16a to temporarily position the rotation of the inner operating handle 15 (see FIG. 7).

When the inner operating handle 15 is rotatably assembled to the inner pedestal 11 via the cylindrical member 12 in this manner, the trigger conversion mechanism 20 provided on the inner operating handle 15 is positioned at the center of rotation as shown in FIG. A roller 24 attached to the tip of a trigger operating member 23 that slides in a direction perpendicular to the axis Lc passes through the cylindrical member 12 and contacts the conical surface 26t of the conical portion 26 of the extension member 25. As shown in FIG.

Referring to FIG. 5, fixing holes 56h, 56h are formed in a rotation base portion 56a of the other outer operating handle 55 at symmetrical positions with respect to the rotation center axis Lc.
A cylindrical member (a cylindrical member (a cylindrical member ( The tubular member) 52 has a flange portion 52f at one end and four grooves 52v formed on the inner peripheral surface.

Further, in the vicinity of the flange portion 52f of the cylindrical member 52, fixing holes 52h, 52h are formed at symmetrical positions with respect to the rotation center axis Lc. Fixing holes 52g, 52g are formed at symmetrical positions with respect to the axis Lc.

The cylindrical member 52 is passed through the circular hole 56ah of the rotation base 56a of the outer operating handle 55 at a predetermined relative angle, and when the flange 52f comes into contact with the side surface of the rotation base 56a, it is used for fixing the rotation base 56a. The hole 56h is aligned with the fixing hole 52h of the cylindrical member 52, and the fixing pin 56p is inserted into the fixing holes 56h and 52h so as to straddle both of them, so that the outer operating handle 55 and the cylindrical member 52 are integrated. It can rotate.

In this way, the cylindrical member 52 passing through the circular hole 56ah of the rotation base 56a of the outer operating handle 55 has a pair of fixing holes 52g at the portion protruding through the circular hole 56ah. When the rotation base 56a of the outer operating handle 55 is brought into contact with the opening end surface of the cylindrical supporting portion 51a of the outer pedestal 51, the outer operating handle 55 is moved through the cylindrical member 52 to the outer side. It is rotatably supported on a pedestal 51 (see FIGS. 7 and 8).

When the annular stop member 53 is screwed to the end of the cylindrical member 52 fitted to the cylindrical support portion 51a of the outer pedestal 51, the flange portion 53f of the annular stop member 53 engages the cylindrical support portion 51a of the outer pedestal 51. The cylindrical member 52 is opposed to the opening end face and is restricted from coming off from the cylindrical support portion 51a of the outer pedestal 51, and the flange portion 53f of the annular stop member 53 and the flange portion 52f of the cylindrical member 52 hold the outer pedestal. The cylindrical support portion 51a of 51 and the rotation base portion 56a of the outer operating handle 55 are sandwiched to position the outer operating handle 55 in the axial direction.

A fixing hole 52g is formed in a portion protruding from the circular hole 56ah of the cylindrical member 52 passing through the circular hole 56ah of the rotation base portion 56a of the outer operating handle 55. As shown in FIG.
Four grooves 52v formed on the inner peripheral surface of the cylindrical member 52 are fitted with four corners of the prismatic handle rotating shaft 31, and the handle rotating shaft 31 is positioned at the portion where the fixing hole 52g is located. When the end of the driving shaft 31 is inserted to a predetermined position, the pair of fixing holes 31g, 31g of the handle rotating shaft 31 are aligned with the fixing holes 52g, 52g of the cylindrical member 52, and the fixing screws 52s are tightened. By screwing them into the hole 52g and the fixing hole 31g so as to straddle both of them, the cylindrical member 52 and the handle rotating shaft 31 move together in the axial direction and rotate together (see FIG. 7).

The locking portion bent in the axial direction of the projection locking portion 32p of the rotation restricting member 32 fitted to the handle turning shaft 31 is formed by two stopper ribs 51bc formed on the mounting seat portion 51b of the outer pedestal 51. The rotation of the handle rotation shaft 31 is restricted when the protrusion locking portion 32p of the rotation restriction member 32, which rotates together with the handle rotation shaft 31, abuts against one of the stopper ribs 51bc and 51bo.

That is, the swinging angle from one of the two stopper ribs 51bc, 51bo of the mounting seat portion 51b of the outer pedestal 51 to the other of the stopper ribs 51bc, 51bo of the mounting seat portion 51b of the outer pedestal 51 is This is the rotation allowable angle.

One end of the handle rotating shaft 31 is fitted into the cylindrical member 12 and rotates integrally with the inner operating handle 15 via the cylindrical member 12, and the other end is fitted into the cylindrical member 52 and rotates together. It rotates integrally with the outer operating handle 55 via the cylindrical member 52 .
That is, the inner operating handle 15 and the outer operating handle 55 are connected by the handle rotating shaft 31 via the cylindrical members 12 and 52, respectively, and rotate integrally.

Therefore, the inner operating handle 15 and the outer operating handle 55 are connected to the rotation restricting member 32 and the handle rotating shaft 31 whose rotation is restricted by the two stopper ribs 51bc and 51bo formed on the mounting seat portion 51b of the outer base 51. can be rotated within the rotation allowable angle range.
The handle grip portions 16b and 56b of the inner operating handle 15 and the outer operating handle 55 extend in the same direction perpendicular to the rotation center axis Lc.

The rotation position of the inner operating handle 15 indicated by the solid line in FIG.
At this time, the projection engaging portion 32p of the rotation restricting member 32 fitted to the handle rotation shaft 31 abuts against the stopper rib 51bc of the outer base 51 to restrict rotation.

The rotation position of the inner operating handle 15 indicated by a two-dot chain line in FIG.
At this time, the protrusion engaging portion 32p of the rotation restricting member 32 fitted to the handle rotating shaft 31 abuts against the stopper rib 51bo of the outer base 51 to restrict rotation.

A torsion coil spring 36 is inserted into an enlarged diameter portion 51ae formed at the opening end of the cylindrical support portion 51a of the outer pedestal 51, and one end of the torsion coil spring 36 is engaged with the cylindrical support portion 51a of the outer pedestal 51. The outer operating handle 55 is urged counterclockwise by the torsion coil spring 36 when the other end is engaged with the rotation base portion 56a of the outer operating handle 55 as viewed from the inside of the room.

Since the outer operating handle 55 is connected by the handle rotating shaft 31 and rotates integrally with the inner operating handle 15, both the outer operating handle 55 and the inner operating handle 15 are biased counterclockwise when viewed from the inside of the room. .
That is, the outer operating handle 55 and the inner operating handle 15 are urged to rotate toward the unlocked position Po.

The slide bar 33 passing through the center shaft hole 31c of the handle rotating shaft 31 has the extension member 25 as described above extending from one end on the inner operating handle 15 side and extending from the other end on the outer operating handle 55 side. Referring to FIG. 5, the extended member 65 is integrally formed by connecting the conical portion 66 and the disk portion 67 with the connecting central shaft 65a and protruding from the conical portion 66 with the protruding central shaft 65b. The conical portion 66 and disc portion 67 have an outer diameter substantially equal to the inner diameter of the cylindrical member 52 and are slidable within the cylindrical member 52 (see FIG. 7).
The conical portion 66 has a conical surface 66t on the surface facing the disk portion 67. As shown in FIG.
Small holes 67h, 67h are formed in the disk portion 67 at symmetrical positions about the axis.

The end of the projecting central shaft 65b projecting from the conical portion 66 is connected to the end of the slide bar 33. As shown in FIG.
The extension member 65 is slidably positioned within the cylindrical member 52 with the connecting central axis 65a and the protruding central axis 65b on the rotation central axis Lc of the slide bar 33 (see FIGS. 8 and 12). ).

A compression coil spring 35 is interposed between the rear surface of the conical portion 66 opposite to the conical surface 66t and the end surface of the handle rotating shaft 31, and the conical portion 66, i.e., the extension member 65, moves outward in the axial direction (conical (the side facing the conical surface 66t of the body 66).
Since the extension members 25 and 65 are connected to both ends of the slide bar 33 , the compression coil spring 35 biases the slide bar 33 and the extension member 25 together with the extension member 65 .

A disc member 68 is attached to the open end face of the flange portion 52f of the cylindrical member 52 while being in contact therewith, and a lid member 69 is placed thereon.
The disk member 68 has projections 68p, 68p projecting toward the small holes 67h, 67h formed in the disk portion 67 of the extension member 65. The projections 68p, 68p penetrate the small holes 67h, 67h. (See Figure 9).
Therefore, the extension member 65 rotates together with the cylindrical member 52 .

As described above, the outer operating handle 55 has the trigger operating member 61, the link member 62, the trigger operating member 63, and the roller 64, which are part of the trigger conversion mechanism 60, and has a plane-symmetrical structure with the inner operating handle 15. are doing.

As shown in FIG. 7, a roller 64 attached to the tip of a trigger actuating member 63 that slides in a direction orthogonal to the rotation center axis Lc of the trigger conversion mechanism 60 provided on the outer operating handle 55 is a cylinder. The extension member 65 passes through the shaped member 52 and contacts the conical surface 26t of the conical portion 66 of the extension member 65. As shown in FIG.

The conical surface 26t of the conical portion 66 of the extension member 65 faces the direction biased by the compression coil spring 35. As shown in FIG.
The conical surface 26t of the conical portion 26 of the extension member 25 on the inner operating handle 15 side also faces in the direction to be urged by the compression coil spring 35. As shown in FIG.

The lock handle device 10 has the structure described above.
7 to 9 show a state in which the inner operating handle 15 and the outer operating handle 55 are at the unlocked position Po and the trigger operating members 21, 61 are not operated.
In FIG. 2, the inner operating handle 15 is in the unlocked position Po, indicated by a two-dot chain line.

A lock roller 18 protruding from the rotation base portion 16a of the inner operating handle 15 is retracted toward the inner side of the door 8 away from the door tip 8a and is in an unlocked state.
A slide bar 33 passing through a central shaft hole 31c of a handle rotating shaft 31 connecting the inner operating handle 15 and the outer operating handle 55 is biased by a compression coil spring 35 together with extension members 25 and 65 connected to both ends. is moved to the outer operating handle 55 side.

Referring to FIG. 9, the trigger operating member 21 is not operated and is urged downward by a torsion coil spring 21s to protrude greatly downward from the lower openings of the grip covers 17, 17, and the link member 22, the trigger operating member 23 moves away from the rotation center axis Lc, and as shown in FIG. The conical surface 26t of the conical portion 26 of the extension member 25 is in contact with the vicinity of the large-diameter outer peripheral edge.

Similarly, the outer operating handle 55 is also at the lock release position Po, and the trigger operating member 61 is not operated. The roller 64 at the tip of the trigger actuating member 63 moved away from the axis Lc is in contact with the large-diameter outer peripheral edge of the conical surface 66t of the conical portion 66 of the extension member 65 (see FIG. 7).

Since the inner operating handle 15 is at the unlocking position Po and the extension member 25 is biased by the compression coil spring 35 and moved toward the outer operating handle 55, the cylindrical body portion 27 of the extension member 25 is penetrated. Also, the locking pin 28 passing through the long hole 12e of the cylindrical member 12 has both ends 28e, 28e formed in circular arc grooves 11aa, 11aa formed on the open end side of the inner peripheral surface of the cylindrical support portion 11a of the inner pedestal 11. The engaging holes 11ao, 11ao at one end of the locking pin 28 are fitted into and locked (see FIG. 8), and the rotation of the locking pin 28 is restricted.

Therefore, the rotation of the cylindrical member 12 through which the locking pin 28 passes through the long hole 12e is also restricted, and the rotation of the inner operating handle 15 integrated with the cylindrical member 12 is also restricted.
Furthermore, rotation of the outer operating handle 55 is also restricted via the handle rotating shaft 31 and the cylindrical member 52 .

Note that the projection engaging portion 32p of the rotation restricting member 32 fitted to the handle rotation shaft 31 is attached to one stopper rib 51bo of the two stopper ribs 51bc and 51bo formed on the mounting seat portion 51b of the outer pedestal 51. , the excessive rotation of the handle rotation shaft 31 is restricted.

Therefore, since the inner operating handle 15 and the outer operating handle 55 are maintained at the unlocked position Po and their rotation is restricted, the lock roller 18 is prevented from protruding to a position where it can be engaged with the lock receiving portion 19. When the door is closed, the lock roller 18 does not collide with the door frame 5 to damage the lock roller 18 and the door frame 5.例文帳に追加

When the inner operating handle 15 and the outer operating handle 55 are at the unlocking position Po, the door 8 is closed, the handle grip portion 16b of the inner operating handle 15 is grasped, the trigger operating member 21 is grasped with fingers, and the trigger operating member 21 is pulled. 10, the trigger operating member 21 swings upward, the trigger operating member 23 is pushed out through the link member 22, and the roller 24 at the tip of the trigger operating member 23 is pushed out. The conical surface 26t of the conical portion 26 of the extension member 25 is pressed while rolling, and the conical portion 26, together with the cylindrical body portion 27 and the slide bar 33, is pushed against the spring force of the compression coil spring 35 to move the outer operating handle 55. and move to the opposite side (see FIG. 11).

Further, when the trigger operating member 61 on the outer operating handle 55 side is operated to swing, the trigger operating member 63 is pushed out through the link member 62, so that the roller 64 at the tip of the trigger operating member 63 moves into the conical shape of the extension member 65. The conical surface 66t of the body portion 66 is pressed while rolling, and the conical portion 66, together with the disk portion 67 and the slide bar 33, is moved toward the inner operation handle 15 against the spring force of the compression coil spring 35 (Fig. 12).

When the cylindrical body portion 27 moves against the spring force of the compression coil spring 35, the locking pin 28 penetrating the cylindrical body portion 27 is formed with both ends 28e, 28e formed on the cylindrical support portion 11a of the inner pedestal 11. 13), the inner operating handle 15 is free to rotate, as shown in FIG. As viewed from the inside of the room, the inner operating handle 15 can be rotated from the unlocked position Po to the locked position Pc.

If the trigger operating member 21 is operated to release the locking pin 28 from the locked holes 11ao, 11ao and the inner operating handle 15 is rotated even slightly, the trigger operating member 21 will swing. Even after the operation is finished, both ends 28e, 28e of the locking pin 28 are in the arcuate grooves 11aa, 11aa excluding the locked holes 11ao, 11ac, and the locking pin 28 can be rotated along the arcuate grooves 11aa, 11aa. Yes (see FIG. 13), so that the inner operating handle 15 can also be rotated via the cylindrical member 12 .
The outer operating handle 55 operates similarly.

When the inside operation handle 15 is rotated to the lock position Pc with the door closed, the lock roller 18 protruding from the rotation base 16a rotates and protrudes toward the door frame 5 to move the vertical frame portion of the door frame 5. 5a (indicated by the solid line in FIG. 2), the door 8 is pressed to the closing side, and the peripheral ridges 8p of the door 8 are strongly pressed by the cushion member 7 to airtightly close the doorway 4. can be locked.

When the inner operating handle 15 is rotated to the locking position Pc, the both ends 28e of the locking pin 28 are aligned with the locked holes 11ac, 11ac, and the trigger operating member 21 has been operated by then. However, due to the spring force of the compression coil spring 35, the locking pin 28 moves axially toward the outer operation handle 55 side together with the cylindrical body portion 27 and is locked in the locked holes 11ac, 11ac. 28 is restricted, rotation of the inner operating handle 15 is restricted via the cylindrical member 12, and further rotation of the outer operating handle 55 is restricted via the handle rotating shaft 31 and the cylindrical member 52. (See FIG. 8).

Therefore, since the inner operating handle 15 and the outer operating handle 55 are maintained at the locking position Pc and their rotation is restricted, even if the torsion coil spring 36 urges the outer operating handle 55 to the unlocking position Po, the lock is locked. state is maintained.

That is, the locked state by inserting the lock roller 18 into the roller socket 19h is not loosened by impact or vibration, and the loosening causes the coil spring 36 to rotate the inner operating handle 15 and the outer operating handle 55 to unlock. It is prevented from being canceled.
In addition, it is possible to prevent the inside operation handle 15 or the outside operation handle 55 from being turned carelessly.

When the door is closed, the inner operating handle 15 and the outer operating handle 55 are at the locking position Pc, and the lock roller 18 is inserted into the roller socket 19h to lock the trigger operating member 21 or the trigger operating member 21 on the inner operating handle 15 side. When the trigger operating member 61 on the outer operating handle 55 side is operated, the slide bar 33 moves toward the inner operating handle 15 side against the spring force of the compression coil spring 35, and the locking pin that penetrates the cylindrical body portion 27 is opened. 28 slips out of the locked holes 11ac, 11ac formed in the cylindrical support portion 11a of the inner pedestal 11 (see FIG. 13). The door 8 can be freely moved and can be rotated from the locked position Pc to the unlocked position Po as viewed from the inside of the room shown in FIG.

8, 11 and 12, locking pin 28, which rotates together with cylindrical member 12 and is movable in the axial direction of rotation center axis Lc, is attached to inner operation handle 15 and outer operation handle 55. At each of the locking position Pc and the unlocking position Po, it can be moved by the urging force of the compression coil spring 35 and locked to the locked hole 11ac or the locked hole 11ao (see FIG. 8). Rotation of the operating handle 15 and the outer operating handle 55 is restricted.

When the trigger operating members 21 and 61 are operated while the locking pin 28 is locked in the locked hole 11ac or locked hole 11ao, the slide bar 33 is locked via the trigger conversion mechanisms 20 and 60. It moves integrally with the pin 28 against the urging force of the compression coil spring 35 to release the engagement of the locking pin 28 with the locked hole 11ac or the locked hole 11ao (see FIG. 13). Since the operating handle 15 and the outer operating handle 55 are allowed to rotate, by using the compression coil spring 35 in this manner, the trigger operating members 21 and 61 can be moved into the locked hole 11ac of the locking pin 28 or the locked hole 11ac. Since it is operated only when the engagement with the hole 11ao is released, the operability of the trigger operating members 21, 61 can be improved with a simple structure.

As shown in FIGS. 7 and 8, the lock handle device 10 rotates the inner operating handle 15 and the outer operating handle 55, which are integrally rotated via the handle rotating shaft 31, toward the unlocking position Po. Since the torsion coil spring 36 for dynamically biasing is provided, when the inner operating handle 15 and the outer operating handle 55 are between the locking position Pc and the unlocking position Po, the locking pin 28 has both ends 28e, 28e attached to the inner pedestal 11. The inner operating handle 15 and the outer operating handle 55 are urged to rotate toward the unlocked position Po by the urging force of the torsion coil spring 36, and when the door is opened, The inner operating handle 15 is naturally rotated to the unlocking position Po, and the locking pin 28 is locked in the locked hole 11ao at the unlocking position Po, so that the inner operating handle 15 and the outer operating handle 55 are not rotated. Since it is regulated, it is possible to avoid a situation in which the lock roller 18 protrudes to a position where it can be engaged with the lock receiving portion 19 and collides with the doorway frame 5 .

As shown in FIGS. 11 to 13, the trigger conversion mechanisms 20 and 60 are operated by operating the trigger operating members 21 and 61 to slide the trigger operating members 23 and 63 via the link members 22 and 62, respectively. The rollers 24, 64 at the tip of the trigger operating members 23, 63 press the conical surfaces 27t, 67t of the conical portions 26, 66 of the extension members 25, 65 so that the slide bar 33 is biased by the compression coil spring 35. By moving in the opposite direction, the operation of the trigger operating members 21, 61 is converted into the movement of the slide bar 33 with a simple structure to release the locking by the locking pin 28, and the inner operating handle 15 and the outer Rotation of the operating handle 55 can be permitted.

Referring to FIG. 8, a pin-like locking pin 28 passing perpendicularly to the central axis through a cylindrical body portion 27 slidably fitted to the cylindrical member 12 of one extension member 25 is a cylindrical body. The end protruding from the portion 27 is axially slidably fitted into and penetrates an elongated hole 12e of the cylindrical member 12, and rotates together with the cylindrical member 12. The end portions 28e, 28e, which are fitted and penetrated through the long hole 12e of the cylindrical member 12, are locked when the inner operating handle 15 and the outer operating handle 55 are at the locking position Pc and the unlocking position Po. Since it can be locked in the holes 11ac and 11ao, the locking pin 28, which rotates together with the cylindrical member 12 and is relatively movable in the axial direction, allows the inner operating handle 15 and the outer operating handle 55 to be locked at the lock position Pc. At each position of the release position Po, it can be moved by the urging force of the compression coil spring 35 and locked to the locked holes 11ac and 11ao.

When the trigger operating members 21 and 61 are operated while the locking pins 28 are locked in the locked holes 11ac and 11ao, the slide bar 33 is integrated with the locking pins 28 via the trigger conversion mechanisms 20 and 60. Then, the locking pin 28 is disengaged from the locking hole 11ac or the locking hole 11ao by moving against the biasing force of the compression coil spring 35, and the inner operating handle 15 and the outer operating handle 55 are disengaged. Rotation can be allowed.

9 and 10, the rocking motion of the trigger operating members 21, 61 moves the trigger operating members 23, 63 through the link members 22, 62 in the direction perpendicular to the rotation center axis Lc. By gripping the trigger operating members 21 and 61 while gripping the handles 15 and 55, the trigger operating members 21 and 61 can be swung, and the trigger operating members 21 and 61 are easy to operate and convenient to use.

8, 11 and 12, rollers 24, 64 are attached to the distal ends of the trigger operating members 23, 63, and the rollers 24, 64 extend from the conical portions 26, 66 of the extension members 25, 65. Since the conical surfaces 26t, 66t are pressed while rolling in contact therewith, the trigger conversion mechanisms 20, 60 operate smoothly and the trigger operation members 21, 61 can be easily operated.

Although the lock handle device according to one embodiment of the present invention has been described above, aspects of the present invention are not limited to the above-described embodiment, and can be implemented in various aspects within the scope of the gist of the present invention. includes things.

For example, in the present embodiment, the lock roller 18 protrudes from the rotation base 16a of the inner operating handle 15, but may be protruded from the rotation base 56a of the outer operating handle 55. FIG.

2... Floor 3... Inner wall 4... Doorway 5... Doorway frame 6... Hinge 7... Cushion member 8... Door 8a... Door edge 8i... Inner surface 8o... Outer surface
10 ... lock handle device,
11 Inner pedestal 11a Cylindrical support portion 11aa Circular groove 11ac, 11ao Locked hole (locked portion) 11b Mounting seat 12 Cylindrical member (cylindrical member) 12f ...flange portion 12v...slot 12e...long hole 12h...fixing hole 13...annular stop member 14...detent pin,
15... Inner operating handle 16... Handle body 16a... Rotating base 16ah... Round hole 16h... Fixing hole 16b... Handle grip part 16p... Fixing pin 17... Grip cover 18... Lock roller ( lock engaging member), 19... lock receiving member,
20... trigger conversion mechanism, 21... trigger operation member, 21s... torsion coil spring, 22... link member, 23... trigger operation member, 24... roller, 25... extension member, 25a... connection center shaft, 25b... projecting center shaft, 26...conical portion, 26t...conical surface, 27...cylindrical portion (fitting portion), 28...locking pin (locking member), 28e...end portion, 29...cover member,
31... Handle rotating shaft 31c... Center shaft hole 31g, 31h... Fixing hole 32... Rotation restricting member 32p... Projection locking part 32s... Fixing screw
33 ... slide bar, 35 ... compression coil spring (slide bar biasing means), 36 ... torsion coil spring (handle biasing means),
51 Outer pedestal 51a Cylindrical support portion 51ae Expanded diameter portion 51b Mounting seat portion 51bw Side wall 51bf Peripheral frame 51bc, 51bo Stopper rib 52 Cylindrical member (cylindrical member), 52f... flange portion, 52v... groove, 52s... fixing screw, 53... annular stop member,
55... Outside operation handle, 56... Handle body, 56a... Rotating base, 56b... Handle grip part, 56p... Fixing pin, 57... Grip cover,
60... trigger conversion mechanism, 61... trigger operation member, 62... link member, 63... trigger operation member, 64... roller, 65... extension member, 65a... connection center shaft, 65b... projecting center shaft, 66... conical portion, 66t...conical surface, 67...disc portion, 68...disc member, 69...lid member.

Claims (6)

a swingable door (8) for opening and closing the opening of the doorway frame (5);
a pair of inner and outer pedestals (11, 51) respectively fixed to the inner and outer side surfaces of the door (8);
a pair of tubular members (12, 52) rotatably supported by the pair of pedestals (11, 51) about a rotation center axis (Lc);
a handle rotation shaft (31) having both ends fitted to the pair of cylindrical members (12, 52) and passing through the door (8) along the rotation center axis (Lc);
Rotation bases (16a, 56a) are fixed to the pair of tubular members (12, 52), respectively, and a pair of inner and outer operation handles (15, 56a) rotate along the pair of pedestals (11, 51), respectively. 55 ) and
a lock engaging member (18) protruding from the pivot base (16a) of at least one of the operating handles (15);
When the door is closed, by rotating the operation handle (15, 55) to the lock position (Pc), the lock engaging member (18) engages the lock receiving portion (19) provided on the doorway frame (5). engaged and locked,
A lock handle device in which the lock engaging member (18) is disengaged from the lock receiving portion (19) to be in the unlocked state by rotating the operating handle (15, 55) to the unlocking position (Po). There is
a slide bar (33) axially slidably penetrating the center of the handle rotation shaft (31);
a slide bar biasing means (35) that biases the slide bar (33) in one axial direction;
a locking member (28) that moves axially together with the slide bar (33) and rotates together with the tubular member (12);
trigger operating members (21, 61) respectively provided on the pair of operating handles (15, 55);
a trigger conversion mechanism (20, 60) for converting the actuation of the trigger operating member (21, 61) into axial movement of the slide bar (33) against the biasing force of the slide bar biasing means (35); , and
When the operating handle (15, 55) is at the locked position (Pc) or unlocked position (Po), the base (11) is biased by the slide bar biasing means (35) to move axially. A lock handle device, characterized in that locked portions (11ac, 11ao) are formed in which the locking member (28) moving upward is locked and rotation is restricted. 2. The lock handle device according to claim 1, further comprising a handle biasing means (36) for biasing the operating handle (15, 55) toward the unlocked position (Po). The operating handle (15, 55) is a rod-shaped handle extending from the tubular member (12, 52) perpendicularly to the rotation center axis (Lc),
The operating handle (15, 55) has a trigger operating member (23, 63) that operates on the trigger operating member (21, 61) via a link member (22, 62), and a pivot shaft (Lc). supported to be slidable in orthogonal directions,
Extension members (25, 65) connected to both ends of the slide bar (33) and extending axially outward have conical surfaces (26t, 66t) facing the biasing direction of the slide bar biasing means (35). formed,
The trigger conversion mechanism (20, 60) slides the trigger operating member (23, 63) via the link member (22, 62) when operated by the trigger operating member (21, 61), The distal end of the trigger operating member (23, 63) presses the conical surface of the extension member (25, 65), thereby causing the slide bar (33) to resist the biasing force of the slide bar biasing means (35). 3. The lock handle device according to claim 1, wherein the lock handle device moves in the other direction. The extension members (25, 65) have fitting portions (27, 67) that slidably fit into the tubular members (12, 52),
The locking member (28) is a pin-shaped member that passes through one of the fitting portions (27) perpendicularly to the central axis,
The locking member (28) has an end portion (28e) that protrudes through the fitting portion (27) and extends axially into an elongated hole (12e) of one of the cylindrical members (12). is slidably fitted into and penetrates into the cylindrical member (12) and rotates together with the cylindrical member (12);
The angle of rotation of the locking member (28) when the operating handle (15, 55) is in each of the locked position (Pc) and the unlocked position (Po) allows the locking member (28) to rotate. The end portion (28e), which is fitted through the elongated hole (12e) of the cylindrical member (12), is engaged with the engaged portions (11ac, 11ao) by the biasing force of the slide bar biasing means (35). 4. The lock handle device according to claim 3, wherein the lock handle device is lockable. The trigger operating member (21, 61) is swingably attached to the operating handle (15, 55),
Both end portions of the rod-shaped link members (22, 62) are pivotally supported by the swing distal end portions of the trigger operating members (21, 61) and the base end portions of the trigger operating members (23, 63), respectively, The swing of the trigger operating member (21, 61) moves the trigger operating member (23, 63) through the link member (22, 62) in a direction perpendicular to the pivot axis (Lc). 5. A lock handle device according to claim 4. A roller (24, 64) is attached to the tip of the trigger operating member (23, 63), and the roller (24, 64) contacts the conical surface (26t, 66t) of the extension member (25, 65). 6. The lock handle device according to any one of claims 3 to 5, wherein the lock handle device is pressed.

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