JP2668346B2 - Inverted latch type flat handle device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a latch-linked flat handle device in which when a handle is pulled out of a case and rotated, a latch body is slid backward to an unlocking position.

[0002]

2. Description of the Related Art In a conventional latch interlocking type flat handle device, a latch body is disposed so as to protrude and retract from the same side as a rotation axis of a handle. Cannot be applied.

[0003] Further, since the operation projection of the handle is loosely fitted in the passive receiving hole of the latch body, the handle is sunk into the case even when the lock is half-locked or unlocked. Even in the state, there is a risk that the user may mistakenly think that the lock is established and leave.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a latch which can be applied to an application where locking is desired on the side opposite to the rotation axis of a handle and which allows a user to visually judge a half-locked or unlocked state. An object of the present invention is to provide an inverted flat handle device.

[0005]

The flat handle device according to the present invention will be described with reference to the accompanying drawings. In the flat handle device of the present invention, the left end of the handle 2 is pivotally connected to the left end of the case 1 by a first pivot 8. And a guide member 7 provided on the back of the case 1.
Of the operation lever 4 pivotally attached to the base plate 25 by the second pivot 13 so that the operating end 14 of the operating lever 4 is moved to the left end of the latch 3. The interlock lever 5 is pivotally attached to the base plate 25 by the third pivot 16 at a position on the left side of the operation lever 4 so that the handle 2 is inserted into the interlock hole 18 of the interlock end 32 of the interlock lever 5. The operation projection 9 is closely engaged, and the passive pin 31 of the passive end 15 of the operation lever 4 is closely engaged with the split groove 17 of the drive end 33 of the interlocking lever 5.

[0006]

When the lock is in the locked state as shown in FIGS. 1 and 2, the distal end of the latch 3 is connected to the receiving portion 23 of the fixed frame 22.
The handle 2 is immersed in the case 1. The passive pin 31 of the operating lever 4 is deeply inserted into the split groove 17 of the driving end 33 of the interlocking lever 5.

The handle 2 is attached to the case 1 around the first pivot 8.
When the operating lever 9 of the handle 2 pushes the passive end 32 of the interlocking lever 5, the
Rotates clockwise about the third pivot 16, and the drive end 33 pushes the passive pin 31 of the operation lever 4. Therefore, the operation lever 4 rotates counterclockwise about the second pivot 13, and the operating end 14 of the operation lever 4 is
To the left against the bias of 12.

[0008] As the latch body 3 slides backward as described above, the tip end of the latch body 3 is separated from the metal receiving portion 23, and the door 21 is opened by further pulling the handle 2 toward the user. When you release your hand from the handle 2, the spring 12
As a result, the latch 3, the operating lever 4, and the interlocking lever 5 operate in the opposite directions, and the handle 2 enters the case 1.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A handle 2 is accommodated in a recess 6 on the front side of a case 1 and a base plate 25 is fixed to the rear side of the case 1 at regular intervals.
And is fixed to the base plate 25, and the latch body 3
Has an opening 7a at the right end in which the indentation appears. The first pivot 8 traverses the upper and lower side wall portions 29 of the case 1 and pivotally connects the left end of the handle 2 to the case 1. The operation projection 9 at the left end of the handle 2 projects rearward from the slot 24 of the bottom wall 30 of the case 1.

A fixed frame 2 is provided on the rear side of the right end of the latch 3.
An arc cam surface 10 for slidingly contacting the metal receiving portion 23 to slide the latch body 3 backward is provided. The receiving hole 11 at the left end of the latch body 3 is formed in a right-angled triangular shape, and the lower surface side is widely opened. The biasing spring 12 composed of a compression coil spring is housed in the slot 27 in the middle part of the latch body 3 and
Between the rising plate portion 28 and the right inner wall surface 27a of the slot 27.

On the back of the case 1, a mounting bracket 1 for the door 21 is provided.
9 is fixed by screws 20. The operation lever 4 is formed in a right-angled L-shape, and is pivotally connected at a bent portion. The interlocking lever 5 is formed in an obtuse L-shape and is pivotally attached at a bent portion.

[0012]

As described above, according to the present invention, the left end of the handle 2 is pivotally connected to the left end of the case 1, and the latch 3 housed in the right side of the guide 7 is slid rightward by the spring 12. The operating end 14 of the operation lever 4 pivotally attached to the base plate 25 is engaged with the receiving hole 11 at the left end of the latch body 3,
The interlocking lever 5 is pivotally attached to the base plate 25 at a position on the left side of the operation lever 4, and the operation protrusion 9 of the handle 2 is engaged with the interlocking hole 18 of the interlocking end 32 of the interlocking lever 5. Since the passive pin 31 of the passive end portion 15 of the operating lever 4 is engaged with the split groove 17 of the portion 33, the latch body 3 can be protruded and retracted from the side opposite to the rotation axis of the handle 2, and the conventional flat surface It can be applied to a use mode different from the handle device.

Further, the engagement between the receiving hole 11 of the latch body 3 and the operating end 14 of the operating lever 4 and the interlocking hole 18 of the interlocking lever 5
The engagement of the handle 2 with the operating protrusion 9 and the engagement of the split groove 17 of the interlocking lever 5 with the passive pin 31 of the operating lever 4 are performed densely. Is raised from the case 1, and the incomplete locking state can be visually determined, and the user can be accurately guided to the re-operation.

[Brief description of the drawings]

FIG. 1 is a partially cutaway bottom view of an inverted latch type flat handle device according to an embodiment of the present invention, showing a locked state.

FIG. 2 is a partially cutaway front view of the flat handle device in a locked state.

FIG. 3 is a bottom view of the flat handle device in an unlocked state.

FIG. 4 is a partially cutaway front view of the flat handle device in an unlocked state.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 case 2 handle 3 latch body 4 operating lever 5 interlocking lever 6 front recess of case 7 guide body 8 first pivot 9 handle operating protrusion 10 cam surface of latch body 11 receiving hole of latch body 12 biasing spring 13 Second pivot 14 Working end of operating lever 15 Passive end of operating lever 16 Third pivot 17 Split groove of interlocking lever 18 Interlocking hole of interlocking lever 19 Mounting bracket 20 Screw 21 Door 22 Fixed frame 23 Fixed frame Gold part 24 Slot in bottom wall of case 25 Base plate 26 Through hole in base plate 27 Slot in latch body 28 Rise plate of base plate 29 Upper and lower side walls of case 30 Bottom wall of case 31 Passive pin of operation lever 32 Interlocking end of interlocking lever 33 Driven end of interlocking lever

Claims (1)

(57) [Claims] 1. A latch body 3 pivotally connected to a left end of a handle 2 at a left end of a case 1 by a first pivot 8 and accommodated in a right side of a guide body 7 provided on the back of the case 1.
And the operating end 14 of the operating lever 4 pivotally attached to the base plate 25 by the second pivot 13 is tightly engaged with the receiving hole 11 at the left end of the latch body 3. The interlocking lever 5 is pivotally connected to the base plate 25 by the third pivot 16 at the position on the left side of 4, and the operation protrusion 9 of the handle 2 is closely engaged with the interlocking hole 18 of the interlocking end 32 of the interlocking lever 5 to interlock. A latch reverse arrangement type flat handle device in which the passive pin 31 of the passive end 15 of the operation lever 4 is closely engaged with the split groove 17 of the drive end 33 of the lever 5.