JP3291282B2 - Lock handle device for removable door - Google Patents

Abstract

A door lock handle assembly is very hard to unlock unless its detachable operating handle (70) is used. In the assembly, an outer end portion of a rotating shaft (10) rotatably mounted in a fixed main body (2) of the assembly forms a spline shaft portion (12) in its outer end portion which is axially slidably engaged with an annular shutter member (40). The spline shaft portion (12) has axial grooves (11) the number of which is an odd number of 3 or 5. An annular cover member (50) for covering an outer peripheral surface of a flange portion of the shutter member (40) is fixedly mounted on the fixed main body (2). The shutter member (40) is resiliently urged toward an axially inner surface of the cover member (50). The operating handle (70) is capable of being engaged with and disengaged from both the spline shaft portion (12) and the annular shutter member (40). <IMAGE>

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to relates to connecting or disconnecting type door locking handle assembly which Nukitoreru the operating handle from the fixed body in a closing lock state.

[0002]

2. Description of the Related Art As an apparatus of this kind, there is known an apparatus described in Japanese Patent No. 280660 which was previously developed by the present applicant. The outline of this device is such that the operation handle can be separated from the fixed body in both the locked position and the unlocked position, and in the locked position, the rotating shaft for rotating the hanging plate is hard to rotate from the outside. It was done.

[0003]

The above-mentioned prior arts have been evaluated to a certain extent in the market, but the present invention is not limited to this.
The theme is to improve this, and to increase the
The drive force can be given and the operation handle
In the locked state removed from the rotating shaft,
There is a concern that the rotating axis will be turned by any gripping tool
By providing a lock handle device for removable doors
is there.

[0004]

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a rotating shaft 10 which penetrates a fixed body 2 fixed to a door 1 so as to be immovable in an axial direction from rotatable and fixed. The rear end shaft of the rotating shaft 10 protruding from the rear surface of the main body 2
Fixing a latch board 17 in part, the front end portion of the rotary shaft 10 projecting from the front surface of the fixed body 2 and the spline shaft portion 12, different from and a pair of projections 180 degree phase to the front position near the outer peripheral portion of the shatter 40 44 is formed in the radial direction, and the shutter 4
A flange 42 is formed at a position close to the back of the outer peripheral portion of
A ring-shaped cover 50 that covers the flange 42 of the shutter 40 is fixed to the front side of the fixed body 2, and the shutter 40 is fitted.
The inner peripheral edge 51 of the central through hole of the cover 50
The pair of notches 52 with which the projections 4 of the
The shutter 42 is pressed and urged by a spring 43 so that the flange 42 is positioned inside the cover 50.
In together when brought into contact with the hole edge portion rear surface of HisashiToruana, shutter
The protrusions 44 of the cover 40 are engaged with the notches 52 of the cover 50.
To the outer peripheral surface 76 of the enlarged end of the handle shaft 71.
A pair of second protrusions inserted into the cutout grooves 52 of the bar 50
Lock hanks for detachable doors with ridges 72 formed on the diameter
In the dollar device, a cross section is formed on the outer peripheral surface of the spline shaft portion 12.
A plurality of semi-circular axial grooves 11 are formed, and a ring plate
-Shaped shutter 40 is splined with spline hole 45
Non-rotatable and axially slidable fit on shaft 12
And wrap a spline hole 45 in front of the shutter 40
A plurality of depressions 41 are formed on the same circumference to
Tip surface 73 of the enlarged end portion of handle shaft 71 of handle 70
The spline shaft 12 is fitted into the center of the
A spline recess 74 is formed, and the spline recess 74 is formed.
On the same circumference surrounding the recess 41 of the shutter 40
A plurality of engaging projections 75 to be inserted are formed on the front end surface 73.
Then, the plurality of grooves 11 of the spline shaft portion 12 are
In such a way that no opposing combinations occur.
And the plurality of recesses 4 of the shutter 40.
No combination of diameters 1 opposing each other occurs
It is characterized in that it is arranged as follows.

In the door lock handle device of the present invention, the door
Rotating the operating handle 70 after closing 1
As a result, the hanging plate 17 at the rear end of the rotating shaft 10 is fixed to the fixed frame.
Of money. Door 1 is closed in this way
After locked in position, the operating handle 70 is withdrawn.
You.

When the operating handle 70 is pulled out, the spring
The shutter 40 moves forward and returns by the urging of
A pair of protrusions 44 of the shutter 40
The groove 52 is instantaneously engaged. Shutter 40 and rotating shaft 1
0 spline shaft part 12 fits relatively non-rotatably
The projection 44 of the shutter 40 is
By engaging with the notch groove 52 of the rotary shaft 50,
Is locked non-rotatably in the locked position.

Without using the operating handle 70, the rotating shaft 1
To turn the 0 to the unlocking position, the shutter in such drivers
40 is retracted against the bias of the spring 43 and the shutter 4
0 projection 44 was detached from notch groove 52 of cover 50.
In the state, the groove 11 on the outer peripheral surface of the spline shaft 12 is
Turn the pair of bent parts of the pliers as hooks.
Other method of hanging on the rotating shaft 10 and gripping the rotating shaft 10 with pliers
However, these grooves 11 have different diameters.
So that combinations that face each other do not occur
The pliers at one of the bends.
When engaged in one groove 11, the other side of the pliers
The bent end of the tip comes into contact with the circumferential surface of the spline shaft 12.
And if you try to apply rotational force in that state,
Of the rotating shaft with pliers
I can't turn 10.

Another method is to use a driver or the like to
The shutter 40 is retracted against the bias of the spring 43,
Of the cover 40 from the notch groove 52 of the cover 50
In the state in which the shutter 40 is in
With a pair of bent parts of the pliers
Hang on the shutter 40, from the pliers to the shutter 40
It is conceivable to apply a rotating force to the rotating shaft 10 via
However, these plural depressions 41 are mutually
They are arranged so that there are no opposing combinations
Then, bend one end of the pliers into one
41, the other end of the pliers bends
Will come into contact with the front of the shutter 40,
Even if you try to apply rotational force in the
To turn the shutter 40 with pliers.
I can't do that. By a pair of pliers tip bends
There is no other way than to hold the rotating shaft 10,
The groove 11 has a combination that opposes each other in diameter.
The pliers are arranged so that
When the tip bent portion is engaged with any one of the grooves 11,
The other end bent part of the lier is the circle of the spline shaft part 12.
Abut on the peripheral surface, and apply rotational force in that state
Even if you try to
The turning shaft 10 cannot be turned.

The lock is properly unlocked by the operating handle 70.
When removing, the second protrusion 72 is
2 and the tip of the operating shaft 71 of the operating handle 70
Fitted into the Tan拡 most in the center hole of the cover 50, spring 43
The shutter 40 is retracted against the urging of
The projections 44 of 40 are removed from the cutout grooves 52 of the cover 50.
You. At this time, the spline recess 74 of the handle shaft 71
The spline shaft 12 enters and the handle shaft 71
The mating projection 75 enters the recess 41 of the shutter 40.
Large driving force from the operating handle 70 to the rotating shaft 10
Can be given. Shutter 40 to predetermined position
After retreating, move the operation handle 70 around the handle shaft 71.
When it is rotated in the unlocking direction, the rotating shaft 12 rotates,
The plate 17 is detached from the metal receiving part on the fixed frame side, and
The door 1 is unlocked.

When the rotating shaft 10 rotates to the unlock position,
The pair of protrusions 44 of the shutter 40 are the edge portions of the hole of the cover 50.
Since the door 1 is engaged with the rear surface, the operation handle 70 is
Open operation is performed by pulling forward. Door 1 closed
Thereafter, when the operation handle 70 is reversely rotated to the locked position,
The second protrusion 72 of the handle shaft 71 is formed by the notch groove 5 of the cover 50.
2 so that the operating handle 70 is
It can be removed from the line shaft 12 and the cover 50.
Wear. The enlarged end of the handle shaft 71 is at the center of the cover 50
When escaped from the through hole, the shutter 40 is replaced by a spring
The shutter enters the central through-hole by the bias of 43,
The protrusions 44 of the cover 40 engage with the cutout grooves 52 of the cover 50.
As a result, the rotating shaft 10 is locked again to the locked position so that it cannot rotate.
Be bundled.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated embodiment, the door 1 is fixed.
The rotating shaft 10 penetrates the center of the fixed body 2 in the front-rear direction.
The rotating shaft 10 is rotatable around its axis, and is immovable in the axial direction . A hanging plate 17 is fitted to the square shaft 16 at the rear end of the rotating shaft 10 so that it cannot rotate relatively.
Ri, are secured by securing bolts 18 and spring washer 19. Rotating shaft 1 protruding from the front of fixed body 2
A groove 11 having a semi-circular cross section is formed on the outer peripheral surface of the front end portion
Are formed as spline shaft portions 12. Said
The grooves 11 are arranged at equal angular intervals of 72 degrees.

A shutter 40 is provided at the center of the
The spline shaft portion 12 is fitted in the
The shutter 40 is slidable in the axial direction. Shout
5 small holes around the spline hole 45
Circular depressions 41 are formed at equal angular intervals of 72 degrees.
You. The front portion of the fixed body 2, a ring-shaped cover 50 of the flange 42 portion completely covers the shutter 40 is distribution
The cover 50 is fixed to the fixed main body 2 by several second bolts 53 penetrating from the back side of the fixed main body 2 . The biasing spring 43 of the shutter 40 is a compression coil.
It is composed of a spring and is fixed to the rotating shaft 10
Compressed between body 2 and shutter 40.

The central through-hole of the cover 50 has an operation handle shaft 7.
1 is formed large enough to insert the enlarged front end,
The inner peripheral edge 51 of the hole has two notched grooves 5 that are diametrically opposed.
2 is provided. A stopper 54 projecting inward in the axial direction is provided at one side edge inside the notch groove 52.
The stopper 54 regulates the rotation angle of the operation handle 70.
Control . A part of the outer peripheral surface 14 of the rotating shaft 10 has about 15
Two click depressions 20 are provided at an angular interval of 0 °
Yes, the opening angle of each click recess 20 is about 30 degrees
ing. The click ball 4 is always held in the click recess 20 by the bias of the coil spring 5 .
It has been pushed. The coil spring 5 is half- mounted on the fixed body 2 side.
It housed in the housing groove 6 formed in the radial direction, receiving groove 6
A spring lid 7 is fitted on the front side of the . Handle shaft
A spline shaft 71 is provided on the inner peripheral surface of the spline recess 74 of FIG.
The drive projection 78 inserted into the groove 11 of the portion 12
Are formed at equal angular intervals.

A positioning projection 8 is formed on the back of the fixed body 2.
And the positioning projections 8 are fitted into the positioning holes of the door 1.
After fixing, the fixed body 2 is fixed to the nut 9 screwed to the bearing cylinder.
To the door 1. Operation handle 70
The outer peripheral surface 76 of the distal enlarged portion of dollars shaft 71, an annular Ha nd
A dollar flange 77 is formed, and the handle shaft 71 is
When rotating in the central through hole of the cover 50, the handle
The flange 77 slides on the front surface of the cover 50, and the operation handle 7
Stabilize 0. In the embodiment shown in FIG. 7 and FIG.
The grip handle 80 of the type is used, and the grip handle 80 is operated.
The handle 70 includes a leg 83 arranged coaxially with the handle shaft 71, and a pair of arms 81 and 82 connected to the leg 83 at right angles . Leg 8 consisting of a pipe
A handle shaft portion 71 is fitted into the base end of 3 and is fixed thereto by appropriate means such as welding or a lock pin.
The operation handle 70 and the handle 80 may be integrally formed from the beginning.

[0015]

As described above, according to the present invention, there is provided a plug for a removable door according to the present invention.
In the lock handle device, the lock is locked by the operation handle 70.
Is released, the spline recess 74 of the handle shaft 71 is released.
The spline shaft 12 enters the
The mating projection 75 enters the recess 41 of the shutter 40.
Large driving force from the operating handle 70 to the rotating shaft 10
Can be given. In addition, the spline shaft portion 12
Combination of a plurality of grooves 11 facing each other in diameter
The shutter 4
0, the plurality of depressions 41 oppose each other on the diameter.
Are arranged so that no
Grab the spline shaft 12 with the bent end of the lier and turn it.
It is very difficult or impossible to turn the pivot 12,
It is also very important to turn the shutter 40 with the same pliers.
A lock handle device for a removable door that is resistant to unauthorized unlocking .

[Brief description of the drawings]

FIG. 1 is a right side view of a lock handle device for a removable door according to an embodiment of the present invention.

FIG. 2 is a front view of the door lock handle device.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a longitudinal sectional front view of a click mechanism of the door lock handle device.

FIG. 5 is a right side view of an operation handle of the door lock handle device.

FIG. 6 is a front end view of the operation handle.

FIG. 7 is a right side view of an operation handle used in a lock handle device for a pull-out type door according to another embodiment of the present invention.

FIG. 8 is a front end view of the operation handle of FIG . 7 ;

[Description of Signs] 1 Door 2 Fixed body 3 Spring 4 Click ball 5 Coil spring 10 Rotary shaft 11 Groove 12 Spline shaft 13Front end face  DESCRIPTION OF SYMBOLS 14 Outer peripheral surface 16 Square shaft part 17 Hanging plate 18 Fixing bolt 19 Spring washer 20 Click dent 40 Shutter 41Depression  42 Flange 43 Spring 44 Projection 45 Spline hole 50 Cover 51 Inner peripheral edge 52 Notch groove 53 Second bolt 54 Stopper 70 Operating handle 71 Operating handle shaft 72 Second projection 73 Tip surface 74 Spline recess 75 Engagement projection 76 Outer peripheral surface 77 Handle flange 80 Handle

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 55-118855 (JP, U) Patent 2820660 (JP, B2) Utility model registration 2502369 (JP, Y2) Jiko 5-45723 (JP, Y2) Japanese Utility Model Showa 41-9598 (JP, Y1) Japanese Utility Model Showa 28-4996 (JP, Y1) Japanese Utility Model Showa 55-15575 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) E05B 3/00

Claims (1)

(57) [Claims] 1. A rotating shaft 10 penetrating a fixed main body 2 fixed to a door 1 is provided so as to be immovable in an axial direction from rotatable,
To the rear end shaft portion of the rotating shaft 10 protruding from the rear surface of the fixed main body 2
Fixing a latch board 17, protruding from the front surface of the fixed body 2 times
The front end of the transfer shaft 10 is a spline shaft 12, and the phase is shifted by 180 degrees at a position close to the front surface of the outer periphery of the shutter 40.
A pair of protrusions 44 are formed in the radial direction,
A flange 42 is formed at a position close to the back of the outer peripheral portion, and a fixing book is formed.
A ring-shaped cover 50 that covers the flange 42 of the shutter 40 is fixed to the front side of the body 2 and the shutter 40 is fitted.
A shutter is provided on the inner peripheral edge 51 of the central through hole of the cover 50 to be inserted.
A pair of cutout grooves 52 with which the projections 4 of 40
The shutter 42 is pressed and urged by a spring 43 to move the flange 42 through the center of the cover 50.
The shutter 40 is brought into contact with the rear surface of the hole edge portion of the hole.
The protrusion 44 is engaged with the notch groove 52 of the cover 50.
And cover the outer peripheral surface 76 of the enlarged end of the handle shaft 71.
A pair of second protrusions 7 inserted into the notch grooves 50
Lock handle for removable door with 2 formed on the diameter
In the apparatus, the outer peripheral surface of the spline shaft portion 12 has an axial
A plurality of grooves 11 are formed, and a ring-shaped shutter 40 is formed.
With respect to the spline shaft portion 12 at the spline hole 45.
Non-rotatable and axially slidable fit, shutter
40 on the same circumference surrounding the spline hole 45 on the front surface
A plurality of depressions 41 are formed, and the operation handle 70
Splice at the center of the distal end surface 73 of the distal end
Spline recess 7 into which the shaft part 12 is fitted so that it cannot rotate relatively.
4 on the same circumference surrounding the spline recess 74
To be inserted into the recess 41 of the shutter 40
A plurality of protrusions 75 are formed on the front end surface 73, and the spline shaft portion 1 is formed.
The plurality of grooves 11 oppose each other in diameter.
Arrangement so that no
The plurality of depressions 41 of the
Arrangement so that no opposing combination occurs
A lock handle device for a removable door.