JPH07286456A - Flat handle device - Google Patents

Abstract

PURPOSE:To prevent a handle from colliding with the finger of an operator by the quick protruding operation of the handle, hold the handle in a housing position without requiring a special locking operation, and also thin the device body. CONSTITUTION:A locking shaft 8 is fitted to the shaft cylinder part 6 of a casing 5, the base end part of a handle 13 is fixed to the connecting shaft part 9 of the locking shaft 8 by a cross pivot 12, and a spring receiving plate 18 and a corrugated spring washer 17 are fitted to the connecting shaft part 9. The handle 13 has a first bearing surface 15 and a second bearing surface 15 on the back surface base end part. The second bearing surface 16 makes contact with the spring receiving plate 18 in the housing state of the handle 13, and the first bearing surface 15 makes contact with the spring receiving plate 18 in the protruding state of the handle 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat handle device which is used for a distribution box housing box or the like, and in which a handle plate is pulled out from a casing and then rotated by a predetermined angle so that a stopper plate is detached from a receiving portion on a fixed frame side. It is a thing.

[0002]

2. Description of the Related Art In a flat handle device disclosed in Japanese Utility Model Laid-Open No. 63-198764, a shaft cylinder is provided at the base end of a casing fixed to a door, and a locking shaft is rotatable on the shaft cylinder. It is fitted so as to be immovable in the axial direction, a stopper plate is fixed to the rear end of the locking shaft, and the handle is retractably housed in the front recess of the casing. A drive spring mounted between the lock shaft and the handle urges the handle to rotate in the protruding direction about the pivot shaft, and a lock hole is provided on the finger hook protruding part on the rear surface of the handle end. , The lock unit is embedded and fixed in the lock housing portion at the tip of the casing, and the latch body interlocked with the rotor of the lock unit is urged forward by the return spring toward the finger drive protrusion, and the tip of the latch body is Is engaged with the locking hole It is sealed lock the handle to the immersive position Te.

However, in this conventional apparatus, when the operator inserts the key of the lock unit and rotates the rotor in the unlocking direction, the latch body slides backward and is disengaged from the lock hole on the handle side, and the handle is moved. Since the drive spring immediately projects and rotates from the casing, the tip of the handle may collide with the operator's finger.

Further, in the conventional apparatus, since the handle is rotationally biased in the projecting direction by the action of the drive spring, after the handle is projected to open and close the door, the handle housed in the front recess of the casing is latched. It needs to be locked by the body. If this locking operation is forgotten, the protruding handle may collide with the human body or interfere with work.

[0005]

SUMMARY OF THE INVENTION Therefore, the object of the present invention is to prevent the tip of the handle from colliding with the operator's finger due to the rapid protrusion of the handle, and without the need for a special locking operation. It is an object of the present invention to provide a flat handle device in which the handle is held at the storage position and the size of the device main body can be reduced.

[0006]

The flat handle device of the present invention comprises a casing 5 fixed to a door 1 and a barrel at the base end portion of the casing 5, which will be described below with reference to the accompanying drawings. A locking shaft 8 which is rotatably and axially immovably fitted to the portion 6, a connecting shaft portion 9 is provided at the front end portion, and a stopper plate 11 is fixed at the rear end portion, and a front recess portion 7 of the casing 5. A handle 13 which is housed in a retractable manner and whose base end is pivotally attached to a connecting shaft of a locking shaft 8 by a transverse pivot 12.
And a spring receiving plate 18 that is fitted to the connecting shaft portion 9 of the locking shaft 8 so as to be movable in the axial direction, and a spring receiving plate 18 that is fitted to the connecting shaft portion 9 so that the spring receiving plate 18 faces the rear base end portion of the handle 13. The first spring is composed of a corrugated plate spring 17 that urges and presses the spring, and a spring receiving plate 18 abuts on the rear end of the handle 13.
The seat surface 15 and the second seat surface 16 are provided, and the first seat surface 15 and the second seat surface 16 are brought into contact with each other at a predetermined angle.

[0007]

When the handle 13 is housed in the front recess 7 of the casing 5, the second seat surface 16 at the rear base end of the handle 13 is in contact with the spring receiving plate 18, and the handle 13 is Due to the elastic force of the corrugated plate-shaped spring washer 17 acting via the plate 18, the spring washer is attracted to the casing 5 side and held in the housed state.

When the handle 13 is projected, the front surface of the base end portion of the handle 13 is pushed to rotate the handle 13 about the transverse pivot 12 against the elastic force of the spring washer 17. In the course of this rotation, the 2nd seat surface 16 and the 1st seat surface 15
When the contact point of the abuts on the spring receiving plate 18, the handle 1
The spring force of the spring washer 17 received by 3 becomes maximum.

When the contact point between the second seat surface 16 and the first seat surface 15 exceeds the central axis X of the locking shaft 8 orthogonal to the transverse pivot 12, the rotational torque due to the elastic force of the spring washer 17 reverses,
The handle 13 is forcibly rotated in the protruding direction. When the handle 13 projects to a required angle for easy gripping, the first seat surface 15 contacts the spring receiving plate 18, and the handle is held in the projecting state by the elastic force of the spring washer 17.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment shown in FIGS. 1 to 3, a flat handle device main body 4 is mounted in a substantially U-shaped section with a packing 30 inserted between an outer peripheral flange portion of a casing 5 and a door 1. The auxiliary plate 32 and the screw 34 are securely fastened to the door 1. The locking shaft 8 fitted in the shaft cylinder portion 6 of the casing 5 has a rotation angle control disk 24 fitted in the rear end angle shaft portion.
By fixing the stopper plate 11 to the locking shaft 8 with the bolt 28, the stopper plate 11 is prevented from being pulled out from the shaft tubular portion 6. The corrugated plate-shaped spring washer 17 has corrugated heads and corrugated bottoms alternately formed along the circumferential direction centered on the central shaft hole 18b.

On the front surface of the base end portion of the handle 13, a finger contact protrusion 14 is provided in an inclined shape for convenience of the initial pushing operation of the handle 13, and on the rear surface side of the base end portion of the handle 13. An escape groove portion 10 into which the connecting shaft portion 9 of the locking shaft 8 is inserted is provided in a fan shape in cross section. The lock unit 19 is embedded and fixed in the lock housing portion 22 at the tip of the handle 13. The lock plate 20 is interlocked with the rotor 29 of the lock unit 19, and the handle 13 is accommodated by engaging the tip of the lock plate 20 with the lock plate 21 fixed to the bottom wall of the casing 5. Locked in position.

In the present embodiment, the second seat surface 16 on the rear surface of the base end portion of the handle 13 is formed in an arcuate surface centered on the transverse pivot 12, and the spring receiving plate 18 is located at any position of the second seat surface 16. Even if they are in contact with each other, the handle 13 is still attracted to the casing 5 side. The first seat surface 15 of the handle 13 is formed as a flat surface on the tangent to the arc surface.

To lock / unlock the door 1 with respect to the fixed frame body 2, the handle 13 is projected from the casing 5, and the transverse pivot 12 is moved.
The locking shaft 8 is rotated by the handle 13 via the lever, and the stopper plate 11 is engaged with and disengaged from the receiving portion 3 on the fixed frame body 2 side. Also, the opening operation of the door 1 is performed by the handle 1
It is done by pulling 3 toward you.

In the embodiment shown in FIG. 4, the first seat surface 15 and the second seat surface 16 at the base end of the handle 13 are both flat surfaces. In this embodiment, when the handle 13 is pushed to be housed in the casing 5, the first seat surface 15 and the second seat surface 15
When the meeting point 16a of the seat surface 16 exceeds the central axis X of the locking shaft 8 upward, the rotational torque due to the elastic force of the spring washer 18 reverses in the retracted direction, and the handle 13 is moved by the elastic force of the spring washer 18. It is automatically stored in the casing 5.

In the embodiment shown in FIG. 5 and FIG. 6, a pair of vertically long click projections 37 and horizontally long click click projections 38 are provided on the front surface of the spring receiving plate 18 in a cross shape around the central shaft hole 18b. It is provided in. On the first seat surface 15 of the handle 13,
There is provided a click concave portion 35 that engages with the vertically long convex portion 37 when the handle 13 is projected, and engages with the horizontally long convex portion 38 when the handle 13 is rotated to the unlock position. The second seat surface 16 is provided with a click concave portion 36 that engages with the laterally long convex portion 38 when the handle 13 is retracted. Since the outer peripheral protrusion 18 a of the spring receiving plate 18 is fitted into the rotation stop groove portion 39 of the bottom wall of the casing 5,
The spring receiving plate 18 can move linearly along the connecting shaft portion 9 of the locking shaft 8, but cannot rotate.

Since the rotation position of the handle 13 with respect to the casing 5 can be clearly recognized by the engagement and disengagement of the click convex portion and the concave portion, the locking / unlocking by the stopper plate 11 and the immersing operation of the handle 13 should be performed at the correct positions. You can Further, since the locking shaft 8 is prevented from rotating by the engagement of the click convex portion and the concave portion, the stopper plate 11 can be held more accurately in the unlocked position, and the stopper plate 11 is located on the side surface side of the door 1. It is possible to prevent the accidental damage to the stopper plate 11 and the fixed frame body 2 caused by accidentally closing the door 1 in a state of popping out of the door. The click concave portion may be provided on the spring receiving plate side and the click convex portion may be provided on the handle side.

[0017]

As described above, in the flat handle device of the present invention, the connecting shaft portion 9 of the locking shaft 8 and the handle 13 which are fitted into the shaft cylinder portion 6 of the casing 5 are pivotally attached by the transverse pivot shaft 12, and the connecting shaft is connected. The spring receiving plate 18 and the corrugated plate-shaped spring washer 17 are fitted to the portion 9, and the handle 13 is provided with the first seat surface 15 and the second seat surface 16 with which the spring receiving plate 18 abuts. When the seat surface 16 contacts the spring receiving plate 18, the handle 13 is attracted to the casing 5 side, so that the handle 13 can be accurately held in the storage position without the need for a special locking operation by the latch body or the like. The handle 13 does not rapidly project to cause the tip of the handle 13 to collide with the operator's finger. Furthermore, the handle 13
When the handle 13 projects from the casing 5, the handle 13 is held in the projecting state by the first bearing surface 15 coming into contact with the spring receiving plate 18, so that the operation from gripping the handle 13 to rotating the handle 13 falls. You can do it smoothly without fear.

When a compression coil spring is used as the spring for urging the handle, it is necessary to secure a certain axial length of the spring in order to obtain a required attracting force. Therefore, the bearing tubular portion of the casing is required. However, in the flat handle device of the present invention, the corrugated plate-shaped spring washer 17 is incorporated as the biasing means of the handle 13, and the wave washer and the wave crest of the spring washer 17 are Since the dimension between the parts, that is, the height of the spring washer 17 does not have to be so high, the length of the bearing tubular part 6 of the casing 5 can be shortened as necessary, and the planar handle device can be made compact and thin. Is possible.

[Brief description of drawings]

FIG. 1 is a front view of a flat handle device according to an embodiment of the present invention in a state where a handle is housed.

FIG. 2 is a rear view of the flat handle device.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a cross-sectional view of the flat handle device according to another embodiment of the present invention in a state where the handle is housed.

FIG. 5 is a sectional view of a flat handle device according to still another embodiment of the present invention in a state where the handle is housed.

FIG. 6 is a perspective view of a spring receiving plate used in the flat handle device of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Fixed frame 3 Receiving part 4 Plane handle device main body 5 Casing 6 Shaft cylinder part 7 Casing front recessed part 8 Locking shaft 9 Connecting shaft part 10 Elevating groove part for raising and lowering of handle 11 Stopping metal plate 12 Cross axis 13 Handle 14 Finger rest Protrusion 15 First seat surface 16 Second seat surface 17 Corrugated plate spring washer 18 Spring receiving plate 19 Lock unit 20 Lock plate 21 Locking plate 22 Lock accommodation part 23 O-ring 24 Rotation angle control disk 25 Washer 26 Washer 27 Washer 28 Hexagonal bolt 29 Rotor of lock unit 30 Packing 31 O-ring receiving groove 32 Mounting auxiliary plate 33 Washer 34 Fixing screw 35 First click recess 36 Click second recess 37 Click vertical projection 38 Click Horizontal convex 39 Rotation stop groove X Central axis of locking shaft

Claims (1)

[Claims] 1. A casing (5) fixed to a door (1) and a shaft cylinder portion (6) at a base end portion of the casing (5) are rotatably and immovably fitted in an axial direction, and a connecting shaft portion (9) is provided at a front end portion. , A locking shaft 8 to which a stopper plate 11 is fixed at the rear end, and a retractable housing 8 which is retractably housed in a front recess 7 of a casing 5, and a proximal end of which is pivotally attached to a connecting shaft of the locking shaft 8 by a transverse pivot 12. Handle 13, a spring receiving plate 18 that is fitted to the connecting shaft portion 9 of the locking shaft 8 so as to be movable in the axial direction, and a spring receiving plate 18 that is fitted to the connecting shaft portion 9 and that connects the spring receiving plate 18 to the rear base end of the handle 13. A spring plate 17 having a corrugated plate-like spring 17 that presses and urges it against the first portion, and a spring receiving plate 18 abuts on the rear end of the handle 13.
A seat surface 15 and a second seat surface 16 are provided, and the first seat surface 15 and the second seat surface 15 are provided.
The seat surfaces 16 are brought into contact with each other at a predetermined angle, the second seat surface 16 is brought into contact with the spring receiving plate 18 when the handle 13 is housed, and the first seat surface 15 is brought into contact with the spring receiving plate 18 when the handle 13 is projected.
A flat handle device to be brought into contact with the.