JPH027807A - Door knob assembly for switchboard - Google Patents

Abstract

PURPOSE: To avoid damages, etc., which are caused by turning a door handle at an improper position, by a method wherein the handle can not be turned unless it is pushed. CONSTITUTION: If a handle coupled with a lock main part 13 is pushed toward a retainer 21 side, the retainer of a slide 9 retreats from the surface of a handle shaft 8 and a guide protrusion is made to protrude from the circumferential surface of the hadle shaft 8. With this constitution, the slide 9 is not retained with the inside of the cylinder 2 and the handle shaft 8 can be turned and the retainer 21 is separated from a housing 27 or coupled with the housing 27, so that a door 26 can be opened and closed. When the lock main part 13 is not pushed toward the retainer 21 side, the guide protrusion of the slide 9 is fitted in a trench, so that the handle can not be turned.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a door handle assembly for a switchboard.

(Prior Art) A conventional door handle assembly for a power distribution board was composed of a handle, a handle shaft fixed to the handle so as to rotate together with the handle, and a locking piece fixed to the front end of the handle. .

(Problems to be Solved by the Invention) Such conventionally known handle bodies have the disadvantage that when opening and closing the door integrated with the switchboard, the opening/closing operation is not accurate. For example, when the switchboard door is completely closed, If the handle is turned when the handle is not in use, the locking piece will scratch the integral part of the switchboard, and the locking piece and the integral part will be damaged.

Furthermore, when the handle is rotated to open the door of a closed switchboard, the locking piece and the integral part are often damaged by friction.

In particular, when working with the switchboard door open, the handle of the switchboard door moves arbitrarily and the locking piece protrudes from the outer edge of the door, causing the worker's head to collide with the locking piece and causing injury. There was a risk.

(Means for Solving the Problems) An object of the present invention is to make it impossible to rotate the door handle of a switchboard unless the door of the switchboard is completely in close contact with one another.

Another object of the present invention is to apply special pressure to the door handle when the door of the switchboard is opened, so that if the handle is not operated intentionally, the handle moves arbitrarily and the lock attached to the handle is removed. The purpose is to prevent the stopper from protruding from the outer peripheral edge of the door.

To solve the above-mentioned conventional problems, the door handle assembly for a switchboard according to the present invention has a main body (13) of a lock.
, a handle (14) fixed to the lock body and rotating together with the lock body, a handle shaft (8) integrated with the lock body,
Locking piece assembly (5) (20) (15) (21), coupling (3) for fixing the locking piece assembly to the tip side of the handle shaft so as to rotate together with the handle shaft, lock main body ( 13) A lock group (23) provided inside the lock so that it can be locked and unlocked with a key, and a cap ring (1) equipped with a cylinder (2) that surrounds the handle shaft (8) so as to rotate together with the lock body. ), the cap ring (
a spring (10) that elastically instructs the handle (10) to protrude a certain distance in a certain direction from the handle (1);
, a connecting rod (18) connected to the lock group so as to be able to rotate together with the lock group within the lock body; rotation of the connecting rod causes I! l
A locking piece (91) protrudes radially outward from a certain point around the handle shaft corresponding to a certain rotational position of the connecting rod, which is connected to the connecting rod so as to be movably connected thereto; In another rotational position on the opposite side 180 degrees away from the above-mentioned position, a guide protrusion (92 ), and the locking piece (91) of the slide formed on the inner surface of the cylinder (2) of the capring (1) protrudes from the handle shaft (8). is engaged with the locking piece (91) to always prevent the handle shaft (8) from being rotated, regardless of whether it protrudes by the above-mentioned certain distance or is pushed to the opposite side by going out. When the guide protrusion (92) of the slide (9) protrudes from the handle shaft, the lock body (1) described above
3) in the direction of the locking piece assembly (5), (15), (20), and (21) and guide the guide protrusion (82) so that the handle (14) is rotated in the opening/closing direction. 13
) projects in the direction of the handle by the spring (10), the guide fixing protrusion (21A) (22A) (23A) fixes the guide protrusion (82) in its open/closed position.
) (24A) is a door handle assembly for a power distribution board.

(Operation of the Invention) The operation of the handle assembly of the present invention will be explained with reference to FIG.

When the lock group (23) is locked, the locking piece (91) of the slide (9) protrudes around the handle shaft (8), and the guide protrusion (92) extends from the surrounding surface of the handle shaft (8). You will be hidden. Therefore, the locking piece (91) is connected to the cylinder (
The groove (22) of the guiding and fixing protrusion formed on the inner surface of
) will be fitted within. Therefore, the lock body (1
3) toward the locking piece (21) as much as possible, the locking piece (
91) cannot be rotated in the desired direction because the height (hs) of the protrusion (23) cannot be adjusted.

When the lock group (23) is locked, the handle (14) cannot be rotated regardless of whether the handle (14) is turned or left as it is.

On the other hand, when the lock group (23) is unlocked with the key, the locking piece (91) of the slide (9) is hidden on the surface of the handle shaft (8), and on the contrary, the guide protrusion (92) is hidden on the surface of the handle shaft (8). (8) is protruded onto the surrounding surface.

Therefore, when the handle (14) is pushed together with the lock body (13) towards the latch piece (21), the guide protrusion (9) of the slide (8)
2) will be out of the height (hs) of the protrusion (23), so the slide (3) will no longer be inspected by the inner surface of the cylinder (2), and the handle shaft (8) can be rotated as desired. . As a result, the locking piece (21) is integrated (27
) or joined together with the door (26)
Be able to open and close.

However, if the lock body (13) and the handle (14) are not pressed against the locking piece (21), the handle shaft (
8) is not rotated. This is because when the lock body (13) is not pressed against one side of the lock, the guide protrusion (92) of the slide is fitted into the lock 14 (22).

Further, when the handle shaft (8) is rotated in the direction of opening the door (26), the guide protrusion (92) of the slide faces the groove (24) of the protrusion (23). Therefore, when the door (2B) is opened and the handle (14) is released, and the lock body (13) is returned to its original position by the spring (10), the guide protrusion of the slide (9) is inserted into the groove (24). The handle (14) cannot be operated arbitrarily because it is stuck and cannot be moved.

(Example) The door handle assembly for a switchboard according to the present invention will be described in detail as follows with reference to the accompanying drawings.

As shown in FIG. 1, the door handle assembly according to the present invention includes a handle (14), a lock body (13), and a handle shaft (8).
, a locking piece assembly (5), (20), (21), and (15), a cap ring (3), and a cap ring (1).

The handle (14) and the lock body (13) are fixed in phase 7L so that they rotate together.The lock body (13) and the handle shaft (8) are integrally formed, and the handle shaft (8) The locking piece assembly is connected by a coupling (3).0 As is clear from the drawing, the coupling (3) and the locking piece assembly are connected to a hole (3') drilled around the coupling. Pin (4) and shaft bolt (5)
hole (28).

When assembling, attach the cap ring (1) to the cap ring (3).
) - After fitting, the axial bolt (5) is firmly attached onto the cylinder (2) of the cap ring (1) by means of the fixing nut (15). At this time, the cylinder of the cap ring (
2) and the fixing nut (15), it is desirable to completely interpose the washer (8). In this way, the locking piece assembly can rotate smoothly.

FIG. 2 is a sectional view of the door handle assembly for a power distribution board of the present invention attached to a power distribution board. That is, the cap ring (1) and the binding nut are attached to the door (26) in one piece (27).
The handle assembly is installed by (25).

A lock group (23) is provided in the lock main body (13) in which the locking piece (21) is appropriately fixed on the shaft bolt (5) with a nut (20). is the connecting rod (
18) is attached so that when the lock group is rotated, its connecting rod (18) also rotates. Connecting rod (
An eccentric shaft (19) is formed at the tip of the shaft (18).

The tip of the handle shaft (8) of the lock body and the coupling (
3) The rear end is connected by a connecting pin (7),
Both ends of the coupling pin (7) reciprocate a certain distance within an elongated hole (6) formed around the rear end of the coupling ring (3) and extending in the longitudinal direction of the coupling.

In addition, holes are drilled at the tip of the lock group (3) at a certain interval around the lock group into which a slide (9) is inserted in a direction perpendicular to the length direction of the lock group. A slide (9) slides in the hole.

The appropriate step and lock group (
13) A spring (10) is provided between the lock group (
13) in the direction of the handle (14).

A groove is formed in the center of the slide (9), and the eccentric shaft (19) of the connecting rod (18) is engaged with this groove to push the slide in a desired direction. That is, the connecting rod (18
) is rotated by the lock group (23), the eccentric shaft (19
) is eccentrically operated, the direction of movement of the slide (9) is converted into a 180 degree rotation of the connecting rod (18) left and right.

The inner surface of the cylinder (2) of the cap ring (1) is recessed with a groove of suitable shape for cooperation with the end of the slide (9).

That is, when the first lock group (23) is locked (see Fig. 2), the negative end of the slide (9) engages with the groove on the inner surface of the cylinder (2) to secure the lock group (13). The handle (14) cannot be rotated regardless of whether it is pushed to the mating side or the lock group is pushed out by the spring (10).

However, when the first lock group (23) is unlocked with the key, when the lock body (13) is urged toward the handle (14) by the spring (!0), the handle (1
Although the lock main body (13) cannot be rotated together with 4), if the lock main body (13) is pushed to the locked side and the handle is rotated, the lock main body (13) will rotate.

This will be explained in detail with reference to FIG. 3 as follows.

The inner surface of the cylinder (2) has a guiding and fixing protrusion (21) (
22), (23), and (24) are formed, which are formed in a symmetrical shape centering on the diameter line of the cylinder (2).

That is, one groove (22) is formed at two positions 180 degrees opposite each other on the inner surface of the cylinder (2), and a lateral protrusion (21) is formed on the minus side of this groove (22). However, a protrusion (23) is formed laterally on the other side. The protrusion (23) has an appropriate distance from the groove (22) so that the distance is t+1!
(24) is formed.

The length (L) of the slide (8) is -
The other side groove (22) on the opposite side at the center of the side groove (22)
) from the distance (2R) to the center of the protrusion (21) (23
) must be shorter than the thickness (Wp).

A groove (83) is provided in the center of the slide (8), and the eccentric shaft (19) is engaged with this groove (93).

When the slide (9) is operated, its guide protrusion (92) is fitted into the groove (22), or the locking piece (91) is fitted into the groove (22).
22). At this time, in order to insert the locking piece or guide protrusion, the slide (9
) must correspond to the depth (WR) of the groove (22).

The bottom surface of the guide protrusion (92) of the slide (9) is formed into a step shape by removing approximately the thickness (vertical).

The height of the slide (9) (h) and the height of the protrusion (23) (
hS), when the lock body (13) is pushed to the maximum extent toward the locking piece (21), the locking piece (91) of the slide (9) is pushed toward the protrusion (2).
3) so as not to deviate from the height (hs), while the guide protrusion (92) of the slide (8)
so that it is guided along the upper surface (S) of the

FIG. 5 is a sectional view showing another embodiment of the door handle assembly of the present invention. As shown in FIG. 13) The relative rotational movement between the lock main body (13) and the cap ring (1) interposed between them is such that the cap ring (1) moves only to the extent necessary for opening and closing the handle.
1) and the lock body (13), or alternatively, a locking step may be provided between the tip of the coupling and the tip of the cap ring (1).

In other words, the tension of the spring (10) according to the present invention has the effect that the locking piece is elastically supported around the integral part (27) when the door is closed.

Of course, although it is not shown in the drawing, when the handle (14) is pressed to open the door, the lock main body (13) does not move forward to one side of the lock, so that the lock piece separates from the periphery of the lock. It is also self-evident that the locking piece can be more easily removed from the vicinity of the body.

(Effects of the Invention) According to the door handle assembly for a switchboard according to the present invention, not only can the opening/closing operation of the switchboard proboscis door be performed accurately and appropriately, but also danger can be eliminated and safety can be improved. Furthermore, the service life of the door handle assembly can be extended, which has a significant economical effect.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a door handle assembly for a power distribution board according to the present invention, FIG. 2 is a sectional view of a door handle assembly for a power distribution board according to the present invention, and FIG. 3 is a door handle assembly of the present invention. A main perspective view of the inner surface of the cap ring cylinder and the slide showing the coupling relationship between the slide provided on the handle shaft and the guide protrusion formed on the inner surface of the cap ring cylinder, FIG. 4 is a main perspective view of the door handle assembly shown in FIG. 12. FIG. 5 is a cross-sectional view of another embodiment of the door handle assembly according to the present invention, and FIG. 6 is a cross-sectional view showing a further embodiment of the door handle assembly according to the present invention. FIG. 3 is an example cross-sectional view. Explanation of symbols Fig. 1 1 ... 2 ... 3 ... 5, 15°8 ... 10 ... 14 ... 21A, 22°23 ... 92 ... Cap ring, cylinder Coupling locking piece, 20, 21. ... Locking piece assembly, handle shaft, 9 ... slide, spring, 13 ... lock body. Handle, 18... Connecting rod, 23^, 24A... Guide fixing protrusion, lock group, 91
・・・Relationship [hi piece, guide protrusion.

Claims (1)

[Claims] 1), a lock main body (13), a handle (14) fixed to the lock main body and rotating together with the lock main body, a handle shaft (8) integrated with the lock main body, a locking piece assembly ( 5) (20)
(15) (21), Coupling (3) for fixing the locking piece assembly to the tip of the handle shaft so as to rotate together with the handle shaft, locking and unlocking with a key inside the lock body (13) A lock group (23) is provided to allow the lock to rotate, and a cap ring (1) is attached with a cylinder (2) that surrounds the handle shaft (8) so as to rotate together with the lock body.
), a spring (10) that elastically directs the handle (14) to protrude a certain distance from the cap ring (1) in a certain direction in a normal state where the lock body (13) is not subjected to external pressure; a connecting rod (18) coupled to the lock group for rotation with the lock group within the lock body;
The locking piece (91) is coupled so as to be interlocked by rotation of the connecting rod, and in a certain rotational position of the connecting rod, protrudes radially outward from a certain point around the corresponding handle shaft to form a locking piece (91). At another rotational position 180 degrees away from one rotational position of the rod, the rod protrudes radially outward at another point 180 degrees away from a certain point around the handle shaft (8). A slide (9) forming a guide protrusion (92), and a handle shaft (8) formed on the inner surface of the cylinder (2) of the capring (1) and a locking piece (91) of the slide. When it protrudes from the handle, it engages with the locking piece (91) to prevent the handle shaft (8) from being rotated regardless of whether it protrudes by the above-mentioned certain distance or is pushed to the opposite side due to going out. On the other hand, when the guide protrusion (92) of the slide (9) protrudes from the handle shaft, the lock main body (13) is attached to the locking piece assembly (5) (15).
(20) Push the handle (14) in the direction of (21).
When the guide protrusion (92) is guided so as to be rotated in the opening/closing direction and the lock main body (13) is projected in the direction of the handle by the spring (10), the guide protrusion (92) is fixed in the open/close position. Guide fixing protrusion (21A) (
22A) (23A) (24A) A door handle assembly for a power distribution board. 2) The above-mentioned slide (9) protrudes outward from two positions 180 degrees apart from each other around the above-mentioned handle shaft to form a locking piece (9) and a guide protrusion (92). 2. The door handle assembly for a switchboard according to claim 1, wherein the door handle assembly is formed by an eccentric shaft (19) formed at the end of the (18) and a groove formed at the center of the slide. 3) The door handle assembly for a switchboard according to claim 1, wherein the coupling (3) is configured such that the relative position of the handle shaft and the locking piece assembly cannot be displaced. 4) The coupling (3) described above is attached to the lock body (1).
3) The relative distance between the above-mentioned handle shaft and the above-mentioned locking piece assembly becomes longer or shorter depending on whether the above-mentioned handle shaft is protruded by a spring or is held down by an external force as described above. A door handle assembly for a power distribution board according to claim 1. 5) The door handle assembly for a switchboard according to claim 1, wherein the spring is provided between the lock body and the coupling. 6), the aforementioned locking piece assembly (5) (20) (21) (
The fixing nut (15) of 15) is connected to the shaft bolt (5) and prevents the fixing pin (4) that connects the coupling (3) and the shaft bolt (5) from coming off. 2. The door handle assembly for a power distribution board according to claim 1, wherein the door handle assembly protects the connecting portion of the coupling (3) and the cylinder (2) of the coupling. 7) The spring (10) described above is connected to the coupling (3).
2. The door handle assembly for a switchboard according to claim 1, wherein the door handle assembly is provided between the inner surface of the handle shaft (8) and the tip of the handle shaft (8).