JP2824427B2 - Dustproof and waterproof cover for door handle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust-proof and water-proof device mounted on a handle of a switchboard or the like to prevent rainwater or dust from entering a lock mechanism of the handle attached to a door of the switchboard. It is about the cover of.

[0002]

2. Description of the Related Art A conventional handle for a door of a switchboard or the like has a shaft portion projecting at right angles from the surface of the door, and a handle portion extending radially from one end of the shaft portion. An opening for a keyhole is provided, and a key is inserted into the keyhole to operate a lock mechanism provided in the shaft portion. At the base end of the handle, a rotary lid is provided to block the opening of the keyhole to prevent rainwater and dust from entering, and a waterproof packing is provided inside the lock mechanism. I have. However, in an environment that is exposed to rainwater, sea breeze, dust, etc., such as on a highway, into the keyhole through the gap between the lids and screw holes for attaching the lid, or to the handle shaft part. It is not possible to completely prevent rainwater or dust from entering the lock mechanism through a gap between the sliding portion and the washer.

[0003]

SUMMARY OF THE INVENTION Therefore, the present invention is a cover for a handle which can prevent rainwater or dust from entering through a gap between a keyhole and a sliding portion. It is an object of the present invention to provide a device that can be mounted, can easily open and close a keyhole, has a simple structure, and can be obtained at low cost.

[0004]

In the present invention, in order to solve the above-mentioned problems, firstly, the shaft cover 2 mounted on the outer periphery of the shaft 22 and the keyhole opening 24 are closed. The handle cover portion 3 mounted on the handle portion 23 and the connecting portion 4 for connecting the shaft cover portion 2 and the handle cover portion 3 are integrally formed of an elastic material such as rubber so that dust for a door handle can be provided. The waterproof cover 1 was configured. Covers all openings directly facing the outside air to prevent rainwater and dust from entering. The whole is integrally formed of an elastic material to make it easy to deform and easy to attach and detach.
Second, the shaft cover 2 is formed in a cylindrical shape, and is inserted from one end of the handle portion 23 to move the outer periphery of the handle portion 23 so that the shaft portion 22 is moved.
Can be attached to the outer periphery of While the cylindrical shaft cover portion 2 reaches the shaft portion 22, it is freely deformed according to the shape of the handle portion 23 to facilitate mounting. Shaft cover 2 for shaft 2
2 to prevent intrusion of rainwater and dust from the clearance 27 of the sliding portion. By surrounding the outer periphery of the shaft portion 22 with the cylindrical shaft cover portion 2, it is coupled to the handle 21, and after mounting, without removing the entirety, only the handle cover portion 3 is removed to easily open the keyhole opening 24. Can be opened and closed. Third, the handle cover 3 is configured to include the front cover 6, the side cover 7, the recess 8 for receiving the handle, and the engaging projection 9. The handle portion 23 is received in the recess 8,
The handle portion 23 was covered with the front cover portion 6 and the side cover portion 7 and the handle cover portion 3 was brought into close contact with the handle portion 23 to enhance the waterproof function. In the mounted state, the engaging projection 9 is engaged with the handle 23 to maintain the close contact of each part, but the ease of attachment and detachment is not impaired. Fourth, the shaft cover 2 and the handle cover 3
The connecting portion 4 extends from the edge of the side surface covering portion 7 along the back surface of the handle portion 23 and is connected to the edge of the shaft cover portion 2. Then, the connecting portion 4 is elastically deformed, and the handle cover portion 3 is formed.
Is detached from the handle 23 so that the keyhole can be easily opened and closed.

[0005]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a vertical side view of a dustproof and waterproof cover for a handle, FIG. 2 is a front view of a dustproof and waterproof cover for a handle, FIG. 3 is a side view of a dustproof and waterproof cover for a handle, FIG.
5 is a rear view of the dustproof and waterproof cover for the handle, and FIG. 5 is a sectional view taken along line VV in FIG.

In FIG. 1, a cover 1 is attached to a door handle 21 indicated by a virtual line for dustproof and waterproof purposes. The handle 21 includes a shaft 22 projecting at a right angle from the surface of the door 31 and a handle 23 extending from one end of the shaft 22 in the radial direction. A lock mechanism (not shown) is provided in the shaft portion 22. An opening 24 (FIG. 2) of a keyhole into which a key for operating the lock mechanism is inserted is disposed on the front of the base of the handle 23. The keyhole opening 24
It is covered with a rotary lid 25.

The cover 1 connects the shaft cover 2 mounted on the outer periphery of the shaft 22, the handle cover 3 mounted on the handle 23, and the shaft cover 2 and the handle cover 3. It has a connection portion 4 and is integrally formed of an elastic material such as rubber.

The shaft cover 2 has a cylindrical shape and is mounted so as to cover the outer periphery of the shaft 22. The shaft cover 2 can be freely expanded and contracted and deformed. Therefore, the shaft cover 2 can be inserted from the lower end of the handle 23 and moved while sliding on the outer periphery of the handle 23 to be mounted on the shaft 22. On the inner periphery of the shaft cover 2, 2
Two annular protrusions 5 are formed. The annular convex portion 5 is provided with a washer 26 in the middle of the shaft portion 22 at the time of attachment to the handle 21.
And a gap 27 between the sliding portions is located between the two. Therefore, the rainwater traveling along the outer periphery of the shaft portion 22 from both sides in the axial direction of the shaft cover portion 2 is not blocked by the annular convex portion 5 and does not reach the gap 27.

The handle cover 3 is attached so as to cover a part of the handle 21 on the base end side of the handle 23. The handle cover 3 has a front cover 6 covering the handle 23 along the front thereof and a side cover 7 covering the handle 23 along the side surface. A recess 8 for receiving the handle 23 is formed in the enclosed inside. The recess 8 is open to the door 31 in the mounted state. A pair of engaging projections 9 protruding from the lower edge of the side surface covering portion 7 so as to be able to engage with the rear surface of the handle portion 23 so as to face the inside of the recess 8 so as to face each other.

The connecting portion 4 extends downward from the rear edge of the upper portion of the side surface covering portion 7 so as to project inwardly of the recess 8, and continues to the upper edge of the shaft cover portion 2. The connection part 4 hangs down along the upper back surface of the handle part 23 at the time of mounting. An annular convex portion 10 is formed on the inner surface of the connection portion 4. Handle part 2
A hole 28 for mounting the pivot of the lid 25 is formed on the back side of the upper end of the cover 3. The annular convex portion 10 surrounds the periphery of the hole 28 in the state of being mounted on the handle 21 and has a handle. It adheres closely to the back of the part 23. Therefore, rainwater traveling on the back surface of the handle 23 is blocked by the annular projection 10 and does not reach the hole 28.

When the dustproof and waterproof cover 1 of this embodiment is mounted on the handle 21, first, as shown by the phantom line in FIG. The cylindrical shaft cover 2 is attached to the handle 2 of the handle 21.
Insert from the end of 3. The shaft cover 2 is elastically deformed according to the shape of the handle 23, and is slid on the handle 23 to the shaft 22. When the shaft cover 2 reaches the shaft 22, the handle cover 3 is pushed toward the handle 23, and the engaging projection 9 is engaged with the back surface of the handle 23, thereby completing the mounting. Since the lock function portion of the handle 21 is covered with the cover 1, there is no danger of dust clogging or rusting. When opening the door 31 for periodic inspection, etc., raise the handle cover 3 and move it to the side,
Open the lid 25 and insert the key into the opening 24 of the keyhole. After the door is closed, the handle cover 3 is restored to cover the handle 23 and reused.

[0012]

As described above, in the present invention, the first
The shaft cover 2 mounted on the outer periphery of the shaft 22, the handle cover 3 mounted on the handle 23, and the connecting portion 4 connecting the shaft cover 2 and the handle cover 3 are connected to each other. Since the door dustproof and waterproof cover 1 is formed integrally with an elastic material such as rubber to constitute the door handle, all the openings directly facing the outside air are covered, and rainwater and dust are surely prevented from entering, and the entire system is protected. Because it is integrally formed of elastic material, it is easy to deform,
This has the effect of being easily detachable. Second, the shaft cover 2 is formed in a cylindrical shape, and is inserted from one end of the handle portion 23 to move the outer periphery of the handle portion 23 so that it can be mounted on the outer periphery of the shaft portion 22. During this time, the shaft cover 2 is freely deformed according to the shape of the handle 23, and is easily mounted. The shaft 22 is covered with the shaft cover 2, and rainwater or dust from the clearance 27 or the like of the sliding portion is provided. Is securely prevented, and the shaft cover portion 2 surrounds the outer periphery of the shaft portion 22, thereby strengthening the connection with the handle 21 and removing only the handle cover portion 3 without removing the whole after mounting. By removing the key hole, the opening 24 of the keyhole can be easily opened and closed. Third
The handle cover 3 is divided into a front cover 6 and a side cover 7.
, The recess 8 for receiving the handle portion, and the engaging projection 9, the handle portion 23 is received in the recess 8, and the front cover portion 6 and the side cover portion 7 hold the handle portion 23. , And the handle cover portion 3 is brought into close contact with the handle portion 23, whereby a high waterproof function is obtained. Since the engaging projection 9 engages with the handle portion 23 in the mounted state, good adhesion of each portion can be maintained. However, there is an effect that the ease of attachment and detachment is not impaired. Fourth, the connecting portion 4 between the shaft cover portion 2 and the handle cover portion 3 is extended from the edge of the side surface coating portion 7 along the back surface of the handle portion 23 and is connected to the edge of the shaft cover portion 2. In addition, there is an effect that the connection portion 4 is elastically deformed, and the handle cover portion 3 is detached from the handle portion 23 to easily open and close the keyhole.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of a handle cover according to the present invention.

FIG. 2 is a front view of a handle cover according to the present invention.

FIG. 3 is a side view of the handle cover according to the present invention.

FIG. 4 is a rear view of the handle cover according to the present invention.

FIG. 5 is a sectional view taken along line VV in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cover 2 Shaft cover part 3 Handle cover part 4 Connection part 21 Handle 22 Shaft part 23 Handle part

Claims (4)

(57) [Claims] A shaft protruding at right angles from a surface of the door, and a handle extending radially from one end of the shaft;
A dustproof / waterproof cover, wherein a keyhole opening for inserting a key for operating a lock mechanism provided in the shaft portion is attached to a handle arranged on the surface of the handle portion, A shaft cover portion mounted on the handle, a handle cover portion mounted on the handle portion for closing the opening of the keyhole from outside, and a connection portion for connecting the shaft cover portion and the handle cover portion. A dustproof and waterproof cover for a door handle, which is integrally formed of an elastic material such as rubber. 2. The shaft cover portion is cylindrical, and is inserted from one end of the handle portion to move the outer periphery of the handle portion so as to cover at least a part of the outer periphery of the shaft portion. The dustproof and waterproof cover for a handle of a door according to claim 1, wherein the dustproof and waterproof cover is configured to be attachable. 3. The handle cover portion is surrounded by a front cover portion covering at least a part of the surface of the handle portion, a side cover portion covering at least a part of the side surface, and a front cover portion and a side cover portion. A recess for receiving a handle portion opened to the door side, and an engaging projection piece protruding from at least a part of an edge of the side surface covering portion so as to be engageable with a back surface of the handle portion. The dustproof and waterproof cover for a door handle according to claim 1 or 2, wherein: 4. The connecting portion extends from a part of an edge of the side surface covering portion onto an opening of the recess along a back surface of the handle portion, and to a part of an edge of the shaft cover portion. 4. The dustproof and waterproof cover for a door handle according to claim 1, wherein the cover is continuous.