JP3063055B2 - Handle structure of lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a handle structure for a lock device.

[0002]

2. Description of the Related Art Conventionally, as a handle structure for locking / unlocking a locking device of an outward opening type door, an inner handle is fixed to one end of a drive shaft, and an outer handle is detachably connected to the other end of the drive shaft. Things are used. The detachable outer handle is
It is suitably used in places that do not enter and exit frequently, such as an electric room, a mechanical room, and a substation room, and occasionally enter during inspection and repair. When the outer handle is used even in a normal place, the handle does not protrude toward the passage when not in use, so that the outer handle does not obstruct the passage. Moreover, when there is no handle, the appearance is good and orderly.

[0003]

When the outer door is opened outward by the outer handle, the T at the tip of the shaft of the handle is used.
The V-shaped head is inserted into the shaft hole corresponding to the shape of the head, and the shaft is connected to the inner handle and the common drive shaft. Then, when the outer handle is turned, the lock device is unlocked and the user can enter the room. Turn the inner handle from inside to lock the door and work. Due to the reaction when closing the door from the indoor side or the vibration after closing, the shaft part of the outer handle moves in the pulling-out direction and the T-shaped head and the shaft hole often fit together. ing. As a result, the inner handle cannot be rotated from the indoor side,
Workers are trapped in the room, sometimes panicking.

In view of the above, in view of the above, the shaft portion of the outer handle does not move in the pulling-out direction with respect to a common drive shaft with the inner handle due to reaction force when closing the door, vibration after closing, or the like. It tries to prevent people from being trapped in the room.

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a reaction force for closing a door between a shaft portion of a detachable outer handle and a common drive shaft of a fixed inner handle, and a closing force. Stop means is provided to prevent the shaft from moving due to vibration or the like.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a partially assembled state in which a lock device (2) is incorporated into an outward opening door (1) and viewed from an outside passage. The outer door (1) is suspended so that the left end side in the figure is opened to the front by a hinge or the like. The locking device (2) has a bar (3) protruding and retracting from the front thereof, and locking rods (4) and (5) extending vertically from respective upper and lower surfaces. The outer handle (6) is lever-shaped and is mounted on the lower part of the locking device (2), and the cylinder lock (7) is mounted on the upper part of the locking device. When the handle (6) faces downward, the bar (3) protrudes and engages with the receiver (9) on the door frame (8) side to lock the free end of the door (1), and locks the upper and lower locks. The rods (4) and (5) also protrude respectively, and the door frame (8) side supports (1)
The upper and lower ends of the door (1) are locked by engaging with (0) and (11). The bar (3) and the locks (4) and (5) receive the catches (9), (10),
The door (1) can be pulled in an airtight state by engaging with (11). When the handle (6) is rotated clockwise to the horizontal direction, the bar (3) and the locking rods (4) and (5) are retracted, respectively, and the door (1) is unlocked. When the handle (6) is turned counterclockwise from the lateral direction to the downward direction, the bar (3) and the locking rods (4), (5) protrude again and the door (1)
To lock. This locked state is restrained and held by the operation of the cylinder lock. The inner handle (12) is also lever-shaped, and is attached to the locking device (2) on the extension of the center of rotation of the outer handle (6) (FIG. 2). And the locking rods (4) and (5) appear and disappear.

The inner handle (12) is rotatably supported by a mounting pedestal (13), and the mounting pedestal (13) is fixed to the indoor surface of the door (1). The inner handle (12) is connected to the outer handle (6) by a common drive shaft (14) and rotates integrally with each other.

The drive shaft (14) is formed as a square shaft, and one end of the drive shaft (14) is inserted into and fixed to a square hole (15) at the center of rotation of the inner handle (12) and rotates integrally with the inner handle (FIG. 2). ). The other end of the drive shaft (14) passes through the door (1) and the lock device (2),
Outer handle (6) formed on the outdoor surface of door (1)
Looking into the mounting hole (16) (Fig. 2). This drive shaft
At the other end of (14), the shaft (1
The outer handle (6) is detachably connected to the drive shaft (14) by inserting the square connection hole (18) formed in (7). This causes the drive shaft (14) to rotate integrally with the outer handle (6).

When the outer handle (6) is merely connected to the drive shaft (14), if the outer handle (6) is pulled forward, the outer handle (6) comes off the drive shaft (14).
The door (1) cannot be opened outward. For that purpose, means for connecting the handle (6) to the door (1) is required.
As its connecting means, the handle (6) has its circular shank
The connecting projections (19) and (19) (FIG. 3) extending in the radial direction opposite to each other from (17) are provided. The door (1) is fixed to the outdoor surface. The connection seat (20) extends in a direction opposite to each other from a shaft hole (21) (FIG. 3) through which the shaft portion (17) of the handle (6) rotatably penetrates. 1
It has a narrow regulation hole (22) (FIG. 3) that allows the passage of 9).

The connection and disconnection of the outer handle (6) and the drive shaft (14) are possible only when the door (1) is locked by the structure of the connecting means. Because the connection seat
The position of the restriction hole (22) of (20) is only in the locked state,
The handle (6) is defined so as to allow passage of the connecting projection (19). Therefore, in the locked state, the connecting projection (19) of the handle (6) is aligned with the regulating hole (22) of the connecting seat (20) (FIG. 4), and the shaft (17) of the handle (6) is connected. Pushing into the shaft hole (21) of the seat (20), the connection hole in the shaft (17)
(18) is fitted to the end of the drive shaft (14), and the shaft (17) is
Connected to (14).

In the above connection state, when the handle (6) is unlocked by rotating the handle (6) laterally from below, the connecting projection (19)
Is disengaged from the restriction hole (22) and engages with the back surface of the peripheral portion of the shaft hole (21) (FIG. 4). As a result, the handle (6) is indirectly connected to the door (1), and the door (1) can be opened outward by pulling the handle (6) in the pulling-out direction.

The occupant closes the door (1) and closes the inner handle.
The door is locked in (12) and the door (1) is kept closed. In this closed state, the connecting projection (19) coincides with the regulating hole (22) (FIG. 4), so that when the shaft (17) of the handle (6) moves a little in the pulling-out direction, the connecting projection (19) moves. 19) is the regulation hole (22)
(FIGS. 2 and 4). As a result, both handles (6) and (12) are locked, and the indoor person is unlocked and cannot go outside. Stop means for preventing this is provided between the connection hole (18) in the shaft portion (17) of the outer handle (6) and the drive shaft (14). This stop means prevents the shaft (17) of the handle (6) from moving in the pulling-out direction along the drive shaft (14), and the connecting projection (19) prevents the restriction hole from moving.
(22) is prevented from being fitted.

As a stop means, a spherical engaging element (23) and a compression coil spring (24) for urging the engaging element in a projecting direction are incorporated into a hole (25) at a connection end of the drive shaft (14). An engagement receiving surface (26) for receiving the engagement element (23) is formed on the opening end side in the connection hole (18) in the shaft portion (17) of the handle (6) (FIG. 5).
In this figure, the engagement element (23) is engaged with the engagement receiving surface (26), and the shaft (17) is pulled out of the drive shaft (14) in the direction of pulling out of the door (1).
It does not move with reaction force or other weak force such as vibration. If the handle (6) is pulled strongly by hand, the shaft (17) moves its engagement receiving surface (26) beyond the engagement element (23), and
Separated from (14). In the case of connection, if the shaft (17) is pushed firmly against the drive shaft (14), the engagement receiving surface (26) will
Beyond (23), they are engaged as shown in FIG . Connection hole (18)
A long groove (27) (FIG. 5) slidable along the engagement element (23) is formed therein .

As shown in FIG . 4 and FIG.
When the drive (6) is connected to the drive shaft (14), the drive shaft
The tip surface of the engaging element (23) protruding from the inside of the engaging receiving surface (26)
And protrudes into the long groove (27) of the connection hole (18).

As another example of the stop means, a drive shaft
The tip of the protruding engaging element remains in the hole while remaining spherical
Flattened hemispherical engaging element (30) and compression coil spring
(24) is incorporated into the hole (25) of the drive shaft (14), and the engagement receiving surface (26) formed on the open end side of the connection hole (18) of the shaft portion (17) as in FIG.
It may also be received on the (Figure 6).

[0016]

[0017]

The handle (6) has a shaft portion (17) formed of metal, and a portion from the periphery of the shaft portion to the grip portion (36) is formed of synthetic resin. Of course, the entire handle (6) may be integrally formed of a metal material. In addition, connection seat (20)
If cover (37) is connected to pin (38), handle (6)
The cover (37) and the shaft hole (21) and the restriction hole.
(22) can be covered, and the drive shaft (14) and the lock device (2) in the door (1) cannot be seen, and the appearance is good. The connection end surface of the drive shaft (14) is formed so as not to exceed the surface surrounded by the shaft hole (21) of the connection seat (20), so that when the handle (6) is pulled out, the door (1) is closed. It is safe without protruding from the surface, has good appearance, and does not hinder the mounting of the cover (37). In the stop means, the engaging element (23), the engaging element
A pair of (30) may be provided so as to face each other.

[0019]

According to the present invention, as described above, the inner handle (1
2) is fixed to one end of the drive shaft (14) and the outer handle (6)
The shaft (17) is rotatably penetrated through the shaft hole (21) of the connection seat (20) fixed to the outer surface of the outward opening door and is formed in the shaft (17). The connection hole (18) in the axial direction is
4) is connected to the other end of the drive shaft (14) in a separable and integrally rotating relationship with the other end of the drive shaft (14). The connection between the outer handle (6) and the drive shaft (14) is made by the outer handle Shaft of (6)
The connection protrusion (19) extending in the radial direction from the outer periphery of (17) coincides with the restriction hole (22) extending in the radial direction from the shaft hole (21) of the connection seat (20) in the locked state of the locking device. It is possible if the regulating hole (22) can pass, the outside handle in this connected state
Its shank coupling projections (17) (19) is not fitted to the restriction hole (22) of the connecting seat (20), rotatable outer handle (6) until unlocked position from the locked position of the locking device With this rotation, the connection protrusion (19) of the shaft portion (17) of the outer handle (6) is connected to the connection seat.
It is displaced from the regulating hole (22) of (20) and engages with the back surface of the peripheral edge of the shaft hole (21). Can be opened by pulling operation
In the handle structure of the lock device, the other end of the drive shaft is connected.
Engage the spherical engaging element with this engaging element in the hole formed at the connecting end
A compression coil spring that biases in the direction
A long groove is formed in the connection hole of the shaft of the handle and the connection hole is formed.
An engagement receiving surface for receiving the engagement element is provided on the open end side, so that the outer handle is attached to the drive shaft while being connected to the drive shaft.
The gage engaging element is located in the long groove inside the engagement receiving surface, and
Since it is received by the receiving surface, the shaft (17) of the outer handle (6) does not move in the pulling-out direction due to a reaction force when the door (1) is closed or vibration after the door is closed. Is a connecting protrusion
(19) and the restriction hole (22) are not locked by fitting, and a person cannot be trapped in the room. At this time, the engaging element (23, 30)
And a compression coil spring (24) for urging the engagement element in the engagement direction.
Is incorporated in the drive shaft (14), and the engaging members (23, 30)
The receiving surface (26) for receiving the shaft is the shaft of the outer handle (6)
(17) formed at the open end side of the connection hole,
A long groove is provided in the connection hole, and the engaging element is always in the long groove.
, So that the engagement receiving surface exceeds
As a result, the connection and disconnection of the outer handle (6) are made light and the structure is simple.

[Brief description of the drawings]

FIG. 1 is a schematic front view of the present invention in which a lock device and a handle are incorporated in an outward opening door, as viewed from the outdoor side.

FIG. 2 is a partially omitted cross-sectional view taken along line AA of FIG.

FIG. 3 is an exploded perspective view of the handle structure of the present invention.

FIG. 4 is a partially omitted cross-sectional view along the line BB of FIG. 2;

FIG. 5 is a sectional view showing a connection relationship between an outer handle and a drive shaft of the present invention.

FIG. 6 is a sectional view showing another modified example similar to FIG.

[Explanation of symbols]

1 outside opening door 2 locking device 3 bar 4 locking rod
5 Locking rod 6 Outer handle 7 Cylinder-lock 8 Door frame 9 Receiving 10 Receiving 11 Receiving
12 Inner handle 13 Mounting base 14 Drive shaft
17 Shaft 18 Connection hole 19 Connection protrusion 20 Connection seat
21 Shaft hole 22 Restriction hole 23 Engagement element 24 Compression coil spring 26 Engagement receiving surface 30 Engagement element

Claims (1)

(57) [Claims] An inner handle and an outer handle for locking / unlocking a locking device of an outward opening door are connected to each other by a common drive shaft , the inner handle is fixed to one end of the drive shaft, and the outer handle is a shaft portion thereof. Is rotatably penetrated through a shaft hole of a connection seat fixed to the outer surface of the outward opening door, and an axial connection hole formed in the shaft portion is fitted to the other end of the drive shaft. The outer handle and the drive shaft are connected to the other end of the drive shaft in a separable and integrally rotating relationship. It is possible if the match at the locked state of the regulating hole and the locking device extending radially may pass through the restriction hole, connecting projections of the connecting seat of the shaft portion of the outer handle Waso in this connected state The outer handle is not locked in the restriction hole, and the lock position of the lock device is locked. To the unlocked position from
With this rotation, the connection protrusion of the shaft portion of the outer handle is displaced from the regulation hole of the connection seat, and engages with the back surface of the peripheral edge of the shaft hole. In the handle structure of the lock device which can be opened by pulling operation of the outer handle, it is formed at the connection end of the other end of the drive shaft.
A spherical engaging element in the hole and a pressure for urging the engaging element in the engaging direction.
Incorporate a compression coil spring to connect the shaft of the outer handle.
A long groove is formed in the connection hole, and
A handle structure for a lock device, wherein an engagement receiving surface for receiving a mating member is provided .