JP6760856B2 - Flat handle - Google Patents

Description

The present invention relates to a flat handle used for a cabinet for storing equipment such as a switchboard and a control board, and more particularly to a flat handle in which a key hole is exposed on the surface of a handle lever.

Conventional flat handles of this type are disclosed by the applicant of the present application in Patent Document 1.
The flat handle of Document 1 is a handle base fixed to a door panel and a handle rotatably mounted on a handle shaft rotatably inserted into the handle base with respect to the handle base via a rotation shaft. It is equipped with a lever and a clasp that is rotatably attached to the back side of the handle base via the handle shaft and can be engaged with and detached from the receiver on the fixed frame side such as the box body by rotating the handle lever. When the panel is opened and closed, the handle lever is raised from the handle base and rotated to engage and disengage from the clasp, and after the door panel is closed, the handle lever is laid down on the handle base and stored. ing.
Further, in this flat handle, a lock unit having a lockable member that can be engaged with and detached from the receiving portion of the handle lever is incorporated in the handle base, and the key hole of the lock unit faces the opening formed in the handle lever. With the handle lever stored on the handle base, the key is inserted into the key hole and rotated in the specified locking direction to lock the lock unit on the handle base side and receive the handle lever side. The parts are engaged and the handle lever is locked, and by rotating the key in a predetermined unlocking direction, the lock member of the lock unit and the receiving part are released from each other and the handle lever is unlocked. It has become like.

Japanese Unexamined Patent Publication No. 2014-234651

However, in the above-mentioned conventional flat handle, since the keyhole is exposed on the surface of the handle lever, a heartless person may mischiefly stuff the keyhole with gum or insert a toothpick, and as a result, the user can insert the door. There is a problem that the key cannot be put in the key hole when trying to open the door.

The present invention solves such a conventional problem, and in this kind of flat handle, the keyhole is blindfolded so that a heartless person does not have mischief, that is, the keyhole cannot be mischievous. The purpose is to protect.

In order to achieve the above object, the flat handle of the present invention
The handle base fixed to the door panel, the handle lever rotatably attached to the handle shaft rotatably inserted into the handle base via the rotation shaft, and the handle base. A clasp that is rotatably attached to the back side via the handle shaft and can be engaged with and detached from a receiver on the fixed frame side such as a box body by rotating the handle lever, and the handle base or the handle lever. A lock unit having a locking member that can be engaged with and disengaged from the receiving portion on the handle lever side or the handle base side is provided, and the clasp and the receiving metal on the fixed frame side are provided by the rotation operation of the handle lever. A flat surface for locking or unlocking the handle lever by inserting a key into the key hole of the lock unit facing the opening formed on the surface of the handle lever and rotating the handle lever in a predetermined direction from the engaged state. In the handle
A cover device for closing the key hole of the handle lever is provided.
The cover device is
An opening that does not interfere with the rotation / rotation operation of the handle lever at the edge of the handle base, separated from the handle lever at a closed position that covers the surface of the handle lever and closes the key hole via a hinge member. A handle cover that is rotatably attached to and from the position,
A handle cover opening direction spring member that rotates and urges the handle cover toward the opening position with the handle cover as a normal state.
It is rotatable to either the end corresponding to the rotation side end of the handle cover of the handle base or the rotation side end of the handle cover, and is rotationally urged to the other side by the locking direction spring member. A lock member having a hook at the tip to which the lock member is attached, and a lock member receiving portion having a locking portion formed on the other side and receiving the lock member inside and engaging with the hook.
One of the rotation-side end of the handle cover or the end corresponding to the rotation-side end of the handle cover of the handle base faces the surface of the lock member facing the lock member receiving portion. An unlocking hole formed, and an unlocking key having a protrusion at the tip capable of pressing the locking member in the unlocking direction through the unlocking hole.
With
By rotating the handle cover to the closed position, the handle cover is automatically locked by engaging the lock member with the locking portion.
The handle cover is automatically opened to the open position by passing the protrusion of the unlock key through the unlock hole and releasing the lock member from the locking portion.
The gist is that.

Further, it is preferable that the flat handle has the following configuration for each part.
(1) The handle base is formed in the shape of a thin case having an opening on the front surface, and the handle cover is formed in the shape of a thin case having an opening on the back surface so as to cover the surface of the handle base.
(2) The lock members are provided in pairs, and the unlock holes and the protrusions of the unlock keys are formed in pairs.
(3) The locking portion of the locking member receiving portion includes a convex step portion to which the hook can be engaged and an inclined surface-shaped guide portion capable of contacting and guiding the hook to the convex step portion.

According to the flat handle of the present invention, a cover device for closing the keyhole of the handle lever is provided. Therefore, by closing the keyhole with the cover device, a person without a heart does not have mischief, that is, mischief in the keyhole. It has a special effect unique to the present invention that the keyhole can be protected by blindfolding it so that it cannot be done.
Further, in this flat handle, in particular, by rotating the handle cover to the closed position, the handle cover is automatically locked by the engagement between the lock member and the locking portion, and the protrusion of the unlock key is passed through the unlock hole. By releasing the lock member from the locking part with this unlock key, the handle cover is automatically opened to the open position, so the handle cover with lock can be easily opened and closed, and it is flat. It also has the advantage that the opening and closing operation of the handle can be performed without any trouble.

A view ((a)) showing the overall configuration of a flat handle (the handle cover of the cover device is closed) according to an embodiment of the present invention is a front view (b), a side view (c) is a side sectional view (d). Is a rear view (e) is a front view of the key used for the lock unit provided on the flat handle) A view ((a)) showing the overall configuration of the same flat handle (the handle cover of the cover device is open) is a front view (b) is a side view (c) is a side sectional view). A view showing a configuration of a handle base in particular of the same plane handle ((a) is a front view (b) is a side view (c) is a side sectional view). A view showing the configuration of a handle lever in particular of the same plane handle ((a) is a front view (b) is a side view (c) is a side sectional view). A view showing a particularly handle cover of a cover device provided on the same plane handle ((a) is a front view (b) is a side sectional view (c), an enlarged side sectional view (d) is a rear view (e) is a bottom view). The view which shows the structure of the lock member of the cover device provided in the same plane handle ((a) is a plan view (b) is a side view). A view showing the configuration of a lock direction spring member used for a cover device provided on the same plane handle, particularly for a lock member ((a) is a front view (b) is a side view (c) is a plan view). The view which shows the structure of the lock release key of the cover device provided in the same plane handle device ((a) is a front view (b) is a side view). An example of using the same flat handle is shown. The handle cover is automatically opened (auto-open) by unlocking the handle cover from the closed and locked state, and the handle lever of the flat handle is opened in the opening direction. The figure which shows the state of rotating operation A diagram showing an example of using the same flat handle, showing a state in which the handle lever of the flat handle is rotated in the closing direction, and then the handle cover is closed and automatically locked (auto-locked) from the state where the handle cover is open.

Next, a mode for carrying out the present invention will be described with reference to the drawings.
1 and 2 show the overall configuration of the flat handle, and FIGS. 3 to 8 show the configuration of each part of the flat handle.

As shown in FIGS. 1 and 2, the flat handle H has a handle base 1 fixed to the door panel D and a handle shaft 2 rotatably inserted into the handle base 1 via a rotation shaft 3. A handle lever 4 that is undulatingly and rotatably attached to 1 and a handle lever 4 that is rotatably attached to the back side of the handle base 1 via a handle shaft 2 A clasp 5 that can be engaged with and disengaged from the catch (not shown) is provided, and the handle lever 4 is raised from the handle base 1 when the door panel D is opened and closed to rotate the catch 5. After the door panel D is closed, the handle lever 4 is laid down on the handle base 1 and stored.
Further, in this flat handle H, a lock unit 6 having a lock member 61 that can be engaged with and detached from the receiving portion 140 of the handle base 1 is incorporated in the handle lever 4, and the key hole 60 of the lock unit 6 is incorporated into the handle lever 4. The handle lever 4 is housed on the handle base 1 and faces the formed opening 420. By inserting the key K into the key hole 60 and rotating the key K in a predetermined locking direction, the handle lever is operated. The lock member 61 of the lock unit 6 on the 4 side and the receiving portion 140 on the handle base 1 side are engaged with each other to lock the handle lever 4, and the key K is rotated in a predetermined unlocking direction to cause the lock unit 6 to operate. The engagement between the lock member 61 and the receiving portion 140 is released, and the handle lever 4 is unlocked.
The flat handle H is also provided with a cover device 7 for closing the key hole 60 of the handle lever 4. The cover device 7 rotates the handle lever 4 at the edge of the handle base 1 via a hinge member 72 at a closed position that covers the surface of the handle lever 4 and closes the key hole 60 and away from the handle lever 4. -A handle cover 71 that is rotatably mounted between the open position that does not interfere with the rotation operation, a handle cover open direction spring member 73 that urges the handle cover 71 to rotate toward the open position, and a handle. It is rotatable to either the end corresponding to the rotation side end of the handle cover 71 of the base 1 or the rotation side end of the handle cover 71, and is rotationally urged to the other side by the lock direction spring member 75. A lock member 74 having a hook 741 at the tip to be attached and attached, a lock member receiving portion 76 having a locking portion 76F formed on the other side and receiving the lock member 74 inside and engaging with the hook 741, and a handle. Formed on either the rotating side end of the cover 71 or the end corresponding to the rotating side end of the handle cover 71 of the handle base 1 so as to face the surface of the lock member 74 facing the lock member receiving portion 76. An unlocking hole 77 is provided, and an unlocking key 78 (see FIG. 8) having a protrusion 781 at its tip that can press the lock member 74 in the unlocking direction through the unlocking hole 77.

In this flat handle H, as shown in FIG. 3, the handle base 1 is formed in a thin case shape having an opening on the front surface by zinc die casting, and the handle lever 4 can be integrally connected to the center on the upper side. A handle mounting portion 1A is formed on the surface, and a lower portion of the handle mounting portion 1A is a handle housing portion 1B.
In this case, the handle base 1 is made of a vertically long substantially flat plate, and the handle mounting portion 1A has a circular hole 10 formed through the center of the upper portion of the plate and communicates with the hole 10 to form a plate. The shaft tube portion 11 is formed so as to project from the back surface of the shaft, and the handle shaft 2 can be rotated via a curved leaf spring 12 (see FIGS. 1 (c) and 2 (c)) made of stainless spring steel on the shaft tube portion 11. The handle storage portion 1B is configured to be inserted and inserted, and the handle storage portion 1B is a substantially inverted U-shaped convex portion as a whole from the edge of the upper half circle of the circular hole 10 on the upper side to the edge of both sides of the plate on the front surface of the plate. 13 is formed so that the front surface of the plate is formed in a case shape, and a tubular accommodating recess 14 is formed between the convex portions 13 on both sides so that the lock unit accommodating portion 42 of the handle lever 4 described later can be accommodated on the lower side of the plate. It is formed (furthermore, a receiving portion 140 for the lock unit 6 is formed in a groove shape on the inner inner peripheral surface of the accommodating recess 14, and the handle base 1 is formed as a vertical intermediate portion of the plate. A mounting boss 19 having a plurality of screw holes is formed so as to project toward the front side and the back side, and can be mounted by the mounting plate 16 and the mounting screw 17 as shown in FIG. 1 (b).

As shown in FIG. 4, the handle lever 4 can be stored on the handle lever storage portion 1B on the front surface of the handle base 1 by zinc die casting. In this case, the handle lever 4 is formed in a vertically long substantially flat plate shape, and the pivot of the handle lever 4 is formed. A shaft insertion portion 40 for inserting the rotation shaft 3 in the width direction (of the handle lever 4) is formed on the upper portion serving as the support side end portion, and also faces the handle base 1 of the handle lever 4. A lock unit storage portion 42 having an opening 420 penetrating between the front and the back is formed in a tubular shape toward the rear at a position corresponding to the storage recess 14 of the handle base 1 on the surface, that is, the back of the handle lever 4.
In this case, the shaft insertion portion 40 is a connecting shaft 21 protruding into the hole 10 of the handle mounting portion 1A of the handle shaft 2 which is inserted into the shaft cylinder portion 11 of the handle mounting portion 1A of the handle base 1 (FIG. 1 (FIG. 1). c), which is formed so as to be connectable to FIG. 2 (c)), and the shaft cylinder of the handle base 1 in a state where the handle lever 4 is housed on the handle base 1 on the peripheral surface of the shaft insertion portion 40. A protrusion 41 is formed so as to be able to press the curved leaf spring 12 at a position in the portion 11 facing the curved leaf spring 12. In this way, in the handle lever 4, the shaft insertion portion 40 is connected to the handle mounting portion 1A of the handle base 1 to the connecting shaft 21 of the handle shaft 2 via the rotating shaft 3, and is mounted on the handle base 1 in an undulating manner. Be done. Then, a protrusion 41 protruding from the peripheral surface of the shaft insertion portion 40 of the handle lever 4 is rotatably arranged around the rotation shaft 3 in the handle mounting portion 1A by the rotation operation of the handle lever 4, and the shaft cylinder is formed. The curved leaf spring 12 is engaged with the curved leaf spring 12 arranged in the portion 11 in the vicinity of the rotating shaft 3, and the curved leaf spring 12 is pressed and deformed by the rotation of the protrusion 41 around the rotating shaft 3 to form the curved leaf spring. The reaction force generated in 12 holds the handle lever 4 at an arbitrary rotation position. Therefore, when the handle lever 4 is raised from the handle base 1, the curved leaf spring 12 is pressed and deformed by the protrusion 41 of the handle lever 4 at an arbitrary raising position of the handle lever 4, and the reaction force generated in the curved leaf spring 12 is projected. In addition to 41, the handle lever 4 is held at this raising position, and when the handle lever 4 is laid down on the handle base 1 and comes into contact with the handle lever 4, the curved plate is formed by the protrusion 41 of the handle lever 4 at the laid down position of the handle lever 4. The spring 12 is pressed and deformed, and the reaction force generated in the curved leaf spring 12 is applied to the protrusion 41, and the handle lever 4 is held at this lodging position.
Further, in this case, the lock unit storage portion 42 having an opening 420 in the front is a cylinder facing the rear at a position facing the storage recess 14 of the handle base 1 on the lower side which is the rotation side end side of the handle lever 4. Further, a through hole 43 is formed on the inner peripheral surface of the lock unit storage portion 42 so as to correspond to the receiving portion 140 on the handle base 1 side. The opening 420 on the front surface of the lock unit storage portion 42 is formed in a circular shape having substantially the same size as the diameter on the front surface of the lock unit 6. As shown in FIGS. 1 and 2, the lock unit 6 is inserted and fixed in the lock unit storage portion 42. The lock unit 6 is a so-called cylinder lock, and the lock member 61 is actuated and connected to the rear portion of the rotor 6R, and the lock member 61 can come and go from the through hole 43 of the lock unit storage portion 42 by the rotation of the rotor 6R. ..
In this way, the lock unit 6 is inserted into the lock unit storage unit 42, and as shown in FIG. 2A, the front surface of the lock unit 6 is exposed to the front opening 420 of the lock unit storage unit 42. Then, from the state where the handle lever 4 is laid down and stored on the handle base 1, the key K is passed through the key hole 60 of the lock unit 6, and the rotor 6R is rotated in the locking direction by the rotation operation of the key K to rotate the lock unit 6. When 6 is locked, the lock member 61 protrudes from the through hole 43 of the lock unit storage portion 420 and is engaged with the receiving portion 140 on the handle base 1 side to lock the handle lever 4, and conversely, the key K When the locker unit 6 is unlocked by rotating the rotor 6R in the opposite direction by the rotation operation, the lock member 61 is separated from the receiving portion 140 on the handle base 1 side and enters the through hole 43 of the lock unit storage portion 42. It is designed to immerse and unlock the handle lever 4.

As shown in FIGS. 1 (c) and 1 (d), the clasp 5 is integrally formed from iron or stainless steel by press working (punching) to form a substantially L shape in the horizontal direction, and a predetermined one end side thereof. A shaft hole 50 corresponding to the shaft portion 22 of the handle shaft 2 of the handle base 1 is formed at the position of. The clasp 5 is non-rotatably attached to the handle shaft 2 by engaging the shaft hole 50 of the clasp 5 with the shaft portion 22 of the handle shaft 2, and the screw 23 is fastened and fixed to the screw hole at the tip of the shaft portion 22. Will be done.
By turning the handle lever 4 in a predetermined opening direction at an arbitrary raising position in this way, the handle shaft 2 is integrally rotated in the same direction via the rotation shaft 3 between the handle lever 4 and the handle shaft 2. When the clasp 5 engages with the receiver on the fixed frame side and the handle lever 4 is turned in the opposite closing direction, the handle shaft 2 is integrally rotated in the same direction via the rotation shaft 3. The clasp 5 is detached from the receiver on the fixed frame side.

As described above, the cover device 7 includes a handle cover 71, a handle cover opening direction spring member 73, a lock member 74, a lock direction spring member 75, a lock member receiving portion 76, an unlock hole 77, and an unlock key 78. Will be done.

As shown in FIG. 5, the handle cover 71 is formed by zinc die casting into a thin case shape having an opening on the back surface so that the surface of the handle base 1 can be covered together with the handle lever 4 housed in the handle storage portion 1B. To.
In this case, the handle cover 71 has a vertically long flat plate portion 711 having substantially the same size and shape as the front surface of the handle base 1, and the handle base 1 is attached to both side portions and lower edges of the flat plate portion 711. The rising edges 712 and 713 are integrally formed so that they can come into contact with the outer edges and the lower edges of the convex portions 13 on both sides, forming a thin case with an open back surface as a whole. It is composed.
Further, as shown in FIGS. 1 and 2, the handle cover 71 is attached to the upper edge portion of the handle base 1 via a hinge member 72 and a handle cover opening direction spring member 73.
In this case, as shown in FIG. 3, the shaft insertion portion 721 forming a part of the hinge member 72 for attaching the handle cover 71 is substantially cylindrical (handle base 1) at the center of the upper end portion on the front side of the handle base 1. ) Is formed in the width direction. Then, as shown in FIG. 5, a pair of bearing portions 722 are provided on both sides of the upper end portion of the handle cover 71 so as to be able to communicate with the shaft insertion portion 721 of the upper end portion of the handle base 1 at a predetermined interval as a part of the hinge members 72. It is formed in a substantially cylindrical shape in the width direction (of the handle cover 71).
Further, in this case, as shown in FIGS. 1 (c) and 2 (c), a coil spring is used for the handle cover opening direction spring member 73, and the handle cover extends in a substantially inverted U shape in the center of the coil spring. A holding portion 731 on the handle cover side for holding the 71 is provided, and a predetermined angle is set between both ends of the coil spring and the holding portion 731 on the handle cover side to extend linearly and press the handle base 1. A holding portion 732 on the handle base side is provided.
In this way, as shown in FIGS. 1 and 2, the handle covers 71 are concentric with the bearing portions 722 on both sides of the upper end portion on both sides of the shaft insertion portion 721 at the center of the upper end portion of the handle base 1 at predetermined intervals. The handle cover opening direction spring member 73, that is, the coil spring directs the holding portion 731 on the handle cover side toward the handle cover 71 side between each bearing portion 722 and the shaft insertion portion 721, and is on the handle base side. Each holding portion 732 of the above is arranged toward the handle base 1, and a shaft 723 (a part of the hinge member 72) is passed between the bearing portion 722, the shaft insertion portion 721, and the handle cover opening direction spring member 73 to be connected. The handle is placed on the upper edge of the handle base 1 at a closed position that covers the surface of the handle lever 4 and closes the key hole 60 via a hinge member 72 and a handle cover opening direction spring member 73, and is separated from the handle lever 4. It is rotatably attached in the vertical direction to and from the upper open position that does not interfere with the rotation operation of the lever 4.

As shown in FIG. 6, the lock member 74 is made of stainless steel and has a hook 741 at the tip and a shaft insertion portion 742 at the base end.
In this case, the lock member 74 is formed in a side view substantially sickle shape having a predetermined width (thickness), a hook 741 is formed in a substantially hook shape at the tip, and a shaft insertion portion 742 is formed in a substantially cylindrical shape at the base end. Formed in the direction. Further, in the vicinity of the hook 741 of the lock member 74, a locking hole 740 is formed so as to penetrate both side surfaces. Further, in this case, the lock members 74 are provided in pairs.
As shown in FIGS. 1 and 2, these lock members 74 have a shaft mounting portion 743 at the end corresponding to the rotating side end of the handle cover 71 of the handle base 1, that is, at the center of the lower end of the handle base 1. Is provided, and is attached to the shaft attachment portion 743 via the shaft 744 and the lock direction spring member 75.
In this case, as shown in FIG. 3, the lower ends of the convex portions 13 on both sides of the front surface of the handle base 1 are slightly extended inward, and the end faces of the extended ends of the convex extension 131 are opposed to each other. To. Then, a shaft hole 130 is formed at the center of each end surface of the convex extension portions 131, and two square holes 18 are formed between the convex extension portions 131 at the lower part of the plate through the front and the back surfaces. It is formed to form the shaft mounting portion 743.
Further, in this case, as shown in FIG. 7, a coil spring is used for the lock direction spring member 75, and a fixed portion 751 on the handle base side that extends in a substantially U shape in the center of the coil spring and is pressed by the handle base 1. It is provided, and a predetermined angle is set between both ends of the coil spring and the fixing portion 751 on the handle base side, and the coil spring is linearly extended slightly, and then linearly extended by a predetermined length toward both sides. A fixing portion 752 on the lock member side that can be inserted and locked in the locking hole 740 of the lock member 74 is provided. The shaft 744 (see FIGS. 1 and 2) has a coil spring which is a shaft insertion portion 742 of each lock member 74 and a lock direction spring member 75 between the shaft holes 130 (see FIG. 3) of the shaft mounting portion 743. It is formed so that it can be bridged through.
In this way, as shown in FIGS. 1 and 2, these two lock members 74 are formed in the shaft mounting portion 743, that is, the two holes 18 between the convex extension portions 131 at the lower front side of the handle base 1. The lock member 74 is arranged at the position with the tip facing forward and the hook 741 facing downward, and the locking direction spring member 75 faces the fixing portion 751 on the central handle base side toward the handle base 1 side between the lock members 74. , The shaft 744 is between the shaft holes 130 of each convex extension 131 in a state where the fixing portions 752 on the lock member side at both ends are arranged facing forward and inserted and locked in the locking holes 740 of each lock member 74. The two lock members 74 are rotatably connected to the lower part of the front side of the handle base 1 and are rotatably connected to each other through the shaft insertion portion 742 of each lock member 74 and the lock direction spring member (coil spring) 75. The handle cover 71 in a state where the surface of the handle lever 1 is covered with the 75 is attached to the rotation side end portion, that is, the lower end side so as to be rotatable and urgeable.

As shown in FIG. 5, the lock member receiving portion 76 is provided together with the unlocking hole 77 at the rotating side end of the handle cover 71, that is, at the lower part of the handle cover 71, and the locking portion of the lock member receiving portion 76 is provided. The 76F includes a convex step portion 761 to which the hook 741 of the lock member 74 can be engaged, and an inclined surface-shaped guide portion 762 capable of contacting and guiding the hook 741 to the convex step portion 761.
In this case, the lock member receiving portion 76 is formed with a convex step portion 761 along the lower edge portion of the handle cover 71 in the middle portion in the front-rear direction at the center of the inner surface of the rising edge portion 713 of the lower portion of the handle cover 71. The front surface of the step portion 761 is provided as the locking surface 76f.
Further, the unlock holes 77 are formed in pairs. The two unlocking holes 77 correspond to both ends of the locking portion 76F at the rising edge portion 714 of the lower portion of the handle cover 71, and are adjacent to the outer surface of the rising edge portion 713 immediately before the locking portion 76F (locking surface 76f). , Formed through between the inner surfaces. In this case, the two unlocking holes 77 are each formed in a quadrangular shape, and the holes on the outer surface side of the rising edge 714 are opened slightly larger than the holes on the inner surface side, and the holes on the outer surface side are directed toward the holes on the inner surface side. The size of the hole is gradually reduced. In this way, the inner peripheral surface of each unlock hole 77 serves as a guide for guiding each protrusion 781 of the unlock key 78 toward each lock member 74 (in this case, the tip of each hook 741).

As shown in FIG. 8, the unlock key 78 is formed by pairing two protrusions 781 so that the two lock members 74 can be pressed in the unlock direction through the two unlock holes 77 at the lower end of the handle cover 71 at the tip thereof. Will be done. In this case, the unlock key 78 is formed of stainless steel into an elongated flat plate shape, and the middle portion in the vertical direction is slightly bent at the position on the upper side, and the lower side is formed long and diagonally with respect to the upper side. Two protrusions 781 are formed to protrude in a quadrangular shape on both sides of the upper end portion on the side, and the lower side is provided as a grip (grip portion).

The flat handle H has such a configuration, and is attached to the door panel D via the packing 15 by the mounting plate 16 and the mounting screw 17 as shown in FIG. 9B. In this case, a mounting hole D0 is formed in the door panel D so that the axle cylinder portion 11 and the accommodating recess 14 projecting to the back surface side of the handle base 1 can be inserted, and the flat handle H is the back surface of the handle base 1 and the door panel. A packing 15 is inserted between the front surface of the door D, and each portion of the axle tube portion 11 and the accommodating recess 14 of the handle base 1 is inserted into the mounting hole D0 of the door panel D. From this state, the back surface of the door panel D is inserted. The mounting plate 16 is arranged on the mounting hole D0, and the mounting screws 17 are fastened to each mounting boss (screw hole) of the handle base 1 from the two screw insertion holes formed in the mounting plate 16 to form the door panel. Attached to D.
By rotating the handle cover 71 to the closed position in this way, the handle cover 71 is automatically locked by the engagement between the lock member 74 and the locking portion 76F, and each protrusion 781 of the unlock key 78 is unlocked. By releasing the pressing of each lock member 74 from the locking portion 76F through the hole 77, the handle cover 71 is automatically opened to the open position.

9 and 10 show an example of using this flat handle H.
When the door panel D is closed with respect to the fixed frame body, the handle lever 4 is laid down on the handle base 1 as shown in FIGS. 9A, 9B, and 9C, and the key K is used. The lock unit 6 is in the locked state, that is, as shown in FIG. 1 (c), the lock member 61 at the rear of the cylinder lock 6 protrudes from the through hole 43 of the lock unit storage portion 42 to the receiving portion 140 of the handle base 1. It is engaged and the handle lever 4 is locked. Then, the handle cover 71 is rotated to the closed position, and the rising edges 712 and 713 on both sides and the lower portion of the handle cover 71 are brought into contact with the both side edges and the lower edge of the handle base 1, and the handle cover The surface of the handle lever 4 housed on the handle base 1 is covered with 71, and the key hole 60 on the surface of the handle lever 4 is covered and closed. Then, this state is (automatically) locked by the engagement between the two locking members 74 and the locking portion 76F. In this way, the key hole 60 on the surface of the handle lever 4 is completely closed by the handle cover 71, so that a person without a heart cannot mischievously stuff the key hole 60 with gum or insert a toothpick as in the past. .. As a result, when the user opens the door panel D, if the handle cover 71 is unlocked and the handle cover 71 is opened, the key K can be inserted into the key hole 60 of the handle lever 4 and the handle lever 4 is released. Can be locked.
Then, when opening the door panel D from such a locked state of the door panel D, first, as shown in FIGS. 9 (d) and 9 (e), the unlock key 78 is used, that is, the unlock key. The two protrusions 781 of 78 are passed through the two unlock holes 77 at the bottom of the handle cover 71, and the two lock members 74 are pushed up by each protrusion 781 by the pressing operation of the unlock key 78 to lock each lock member 74. When the pressure is released from the portion 76F, the handle cover 71 is automatically flipped up to the open position and opened (that is, automatically opened) by the rotational urging of the handle cover opening direction spring member 73. As a result, the handle lever 4 is exposed to the outside. Next, the lock of the handle lever 4 is released. In this case, when the key K is passed through the key hole 60 of the lock unit 6 and the rotor 6R is rotated in the unlocking direction to unlock the lock unit 6, the lock member 61 is released from the receiving portion 140 of the handle base 1. Then, the handle lever 4 is unlocked. Next, as shown by the two-point chain line in FIG. 9E, when the handle lever 4 is raised from the handle base 1, the curved leaf spring 12 is generated by the protrusion 41 of the handle lever 4 at an arbitrary raising position of the handle lever 4. The handle lever 4 is held at this raising position by the reaction force generated by the curved leaf spring 12 due to the pressure deformation. Subsequently, when the handle lever 4 is turned in a predetermined opening direction from this state, the handle shaft 2 is integrally rotated in the same direction via the rotation shaft 3 between the handle lever 4 and the handle shaft 2, and the clasp is used. 5 is separated from the receiver on the fixed frame side. From this state, the door panel D is opened and the door panel D is opened.
Then, when closing the door panel D again, after closing the door panel D, first, the handle lever 4 held at an arbitrary raising position is turned in a predetermined closing direction, and between the handle lever 4 and the handle shaft 2. The handle shaft 2 is integrally rotated in the same direction via the rotation shaft 3, and the clasp 5 is engaged with the receiver on the fixed frame side. As a result, the door panel D is closed. Next, as shown in FIGS. 10A and 10B, when the handle lever 4 is laid down on the handle base 1, the curved leaf spring 12 is pressed and deformed by the protrusion 41 of the handle lever 4, and the curved leaf spring 12 is pressed and deformed. The handle lever 4 is held at this lodging position by the reaction force generated in. As a result, the closed state of the door panel D is maintained. Then, when the key K is passed through the key hole 60 of the lock unit 6 and the rotor 6R is rotated in the locking direction to lock the lock unit 6, the lock member 61 protrudes from the through hole 43 of the lock unit storage portion 42. The handle lever 4 is locked by engaging with the receiving portion 140 of the handle base 1. Then, as shown in FIGS. 10C and 10D, when the handle cover 71 is rotated to the closed position and closed, the lock member 74 at the lower part of the handle base 1 becomes the lock member receiving portion 76 at the lower part of the handle cover 71. In this case, the handle cover 71 is abutted against the guide portion 762 of the locking portion 76F, and is engaged with the locking surface 76f over the convex step portion 761 by the guidance of the guide portion 762, and the handle cover 71 is auto-locked. As a result, the key hole 60 of the handle lever 4 is blindfolded by the handle cover 71, and a person without a heart can protect the key hole 60 of the handle lever 4 from mischief such as stuffing gum or a toothpick.

As described above, according to the flat handle H, since the cover device 7 for closing the key hole 60 of the handle lever 4 is provided, by closing the key hole 60 with the cover device 7, a person without a heart has a mischief. The key hole 60 can be protected by blindfolding the key hole 60 so as not to be mischievous, that is, the security performance can be improved.
In particular, in this cover device 7, the handle cover 71 is automatically locked by engaging the lock member 74 and the locking portion 76F by rotating the handle cover 71 to the closed position, and the protrusion 781 of the unlock key 78 is locked. The handle cover 71 is automatically opened to the open position by passing the lock member 74 through the lock release hole 77 and releasing the lock member 74 from the locking portion 76F with the lock release key 78. Therefore, the handle cover 71 with a lock has a lock. The opening / closing operation can be easily performed, and the opening / closing operation of the flat handle H can be performed without any trouble without the handle cover 71 getting in the way.

In this embodiment, the handle cover 71 of the cover device 7 has a closed position and a handle on the upper edge of the handle base 1 via a hinge member 72 so as to cover the surface of the handle lever 4 and close the key hole 60. It is assumed that the handle cover is rotatably attached in the vertical direction to the upper open position that is separated from the lever 4 and does not interfere with the rotation / rotation operation of the handle lever 4, but this handle cover is under the handle base. At the edge, via a hinge member, between the closed position that covers the surface of the handle lever and closes the key hole and the lower open position that is separated from the handle lever and does not interfere with the rotation / rotation operation of the handle lever. It may be mounted so as to be rotatable in the vertical direction. In this case, the lock member and the lock member receiving portion are provided on the handle base and the upper part of the handle cover. In addition, this handle cover has a hinge member on one side edge of the handle base, which covers the surface of the handle lever and closes the key hole, and rotates and rotates the handle lever apart from the handle lever. It may be rotatably mounted laterally to and from the lateral open position that does not interfere with the operation. In this case, the lock member and the lock member receiving portion are provided on the other side edge portion of the handle base and the handle cover.
Even in this way, the same action and effect as those of the above-described embodiment can be obtained.
Further, in this embodiment, the lock member 74 is rotatable toward the end corresponding to the rotation side end of the handle cover 71 of the handle base 1 and is rotated toward the handle cover 71 by the lock direction spring member 75. It was urged and attached, and the lock member receiving portion 76 was formed at the rotating side end of the handle cover 71, but on the contrary, the locking member was formed at the rotating side end of the handle cover. It may be rotatably attached by being rotatably urged toward the handle base by a lock direction spring member, and the lock member receiving portion may be formed at an end corresponding to the rotation side end of the handle cover of the handle base. .. In this case, the unlock hole is formed at the end corresponding to the rotation side end of the handle cover of the handle base.
Even in this way, the same action and effect as those of the above-described embodiment can be obtained.
Further, in this embodiment, the handle cover 71 is formed in a thin case shape having an opening on the back surface so as to cover the surface of the handle lever 4 on the handle base 1, but covers the surface of the handle lever 4. As long as the key hole 60 can be closed, it may be flat.
Further, in this embodiment, a plurality of lock members 74 are provided to form a plurality of lock release holes 77 and a plurality of protrusions 781 of the lock release key 78, but one lock member is provided to release the lock. The hole and the protrusion of the unlock key may be one.
Even in this way, the same action and effect as those of the above-described embodiment can be obtained.
Further, in this embodiment, with respect to the flat handle, the lock unit 6 is incorporated in the handle lever 4, and the lock member 61 of the lock unit 6 can be engaged with and detached from the receiving portion 140 on the handle base 1 side. However, the lock unit may be incorporated in the handle base so that the lock member of the lock unit can be engaged with and detached from the receiving portion on the handle lever side, and even in this case, the same operation as that of the above embodiment is performed. It can be effective.

H Flat handle 1 Handle base 1A Handle mounting part 10 holes 11 Shaft cylinder part 12 Curved leaf spring 1B Handle storage part 13 Convex part 130 Shaft hole 131 Convex extension part 14 Storage recess 140 Receiving part 15 Packing 16 Mounting plate 160 Screw insertion Hole 17 Mounting screw 18 Hole 19 Mounting boss 2 Handle shaft 21 Connecting shaft 22 Shaft part 23 Screw 3 Rotating shaft 4 Handle lever 40 Shaft insertion part 41 Protrusion 42 Locking unit storage part 420 Opening 43 Through hole 5 Stopper 50 Shaft hole 6 Lock unit (cylinder lock)
6R Rotor 60 Key hole 61 Locking member K key 7 Cover device 71 Handle cover 711 Flat plate part 712 Rising edge part 713 Rising edge part 72 Hinging member 721 Shaft insertion part 722 Bearing part 723 Axis 73 Handle cover Opening direction spring member 731 Handle cover Side presser part 732 Handle base side presser part 74 Lock member 740 Locking hole 741 Hook 742 Shaft insertion part 743 Shaft mounting part 744 Shaft 75 Lock direction spring member 751 Handle base side fixing part 752 Lock member side fixing part 76 Lock member receiving part 76F Locking part 76f Locking surface 761 Convex step part 762 Guide part 77 Unlocking hole 78 Unlocking key 781 Protrusion D Door panel D0 Mounting hole

Claims (4)

The handle base fixed to the door panel, the handle lever rotatably attached to the handle shaft rotatably inserted into the handle base via the rotation shaft, and the handle base. A clasp that is rotatably attached to the back side via the handle shaft and can be engaged with and detached from a receiver on the fixed frame side such as a box body by rotating the handle lever, and the handle base or the handle lever. A lock unit having a locking member that can be engaged with and disengaged from the receiving portion on the handle lever side or the handle base side is provided, and the clasp and the receiving metal on the fixed frame side are provided by the rotation operation of the handle lever. A flat surface for locking or unlocking the handle lever by inserting a key into the key hole of the lock unit facing the opening formed on the surface of the handle lever and rotating the handle lever in a predetermined direction from the engaged state. In the handle
A cover device for closing the key hole of the handle lever is provided.
The cover device is
An opening that does not interfere with the rotation / rotation operation of the handle lever at the edge of the handle base, separated from the handle lever at a closed position that covers the surface of the handle lever and closes the key hole via a hinge member. A handle cover that is rotatably attached to and from the position,
A handle cover opening direction spring member that rotates and urges the handle cover toward the opening position with the handle cover as a normal state.
It is rotatable to either the end corresponding to the rotation side end of the handle cover of the handle base or the rotation side end of the handle cover, and is rotationally urged to the other side by the locking direction spring member. A lock member having a hook at the tip to which the lock member is attached, and a lock member receiving portion having a locking portion formed on the other side and receiving the lock member inside and engaging with the hook.
One of the rotation-side end of the handle cover or the end corresponding to the rotation-side end of the handle cover of the handle base faces the surface of the lock member facing the lock member receiving portion. An unlocking hole formed, and an unlocking key having a protrusion at the tip capable of pressing the locking member in the unlocking direction through the unlocking hole.
With
By rotating the handle cover to the closed position, the handle cover is automatically locked by engaging the lock member with the locking portion.
The handle cover is automatically opened to the open position by passing the protrusion of the unlock key through the unlock hole and releasing the lock member from the locking portion.
A flat handle that features that. The flat surface according to claim 1, wherein the handle base is formed in the shape of a thin case having an opening on the front surface, and the handle cover is formed in the shape of a thin case having an opening on the back surface so as to cover the surface of the handle base. handle. The flat handle according to claim 1 or 2, wherein the lock members are provided in pairs, and the unlock holes and the protrusions of the unlock keys are formed in pairs. The locking portion of the lock member receiving portion according to any one of claims 1 to 3, comprising a convex step portion to which the hook can be engaged and an inclined surface-shaped guide portion capable of contacting and guiding the hook to the convex step portion. Flat handle.

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