JP3187771B2 - Handle mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handle mechanism which is attached to an opening and closing member such as a door and has a locking function.

[0002]

2. Description of the Related Art Doors and the like are locked in a state where the door is closed by a handle mechanism having a lock function.

FIGS. 5 and 6 show a conventional structure of a handle mechanism 80 of this type. A resin housing 88 is attached to a door 84 that is rotatably supported by the device. A handle 86 is pivotally supported by the housing 88 via a pin 90 so that the handle 86 can be rotated from the front side of the door 84.

A lock portion 92 is provided on the back side of the handle 86 so as to penetrate the housing 88 and protrude to the back side of the door 84, and can be locked to a lock pin 94 on the device side.

On the other hand, a notch 8 is provided at the bottom of the housing 88.
8A is formed, and a projecting piece 96 is provided by pushing up a portion surrounded by the notch 88A from the back surface. The projecting piece 96 presses the handle 86 in a direction in which the lock portion 92 rotates in the direction of arrow C by the urging force. Then, the lock portion 92 is locked to the lock pin 94, and the door 84 is locked in the closed state.

However, since the cutout 88A is formed in the housing 88, there is a possibility that dust, dirt, and the like may enter the device side from the cutout 88A. Further, as shown in FIG. 7, the notch 88A is visible from the outside, so that the appearance is not good.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a handle mechanism which can prevent dust and the like from entering and has a good appearance.

[0008]

According to the first aspect of the present invention, a rectangular hole is formed in the opening / closing member which is supported by the device so as to be openable / closable, and a frame portion is attached to the rectangular hole. A claw protrudes from the side wall of the frame, and is elastically deformed and locked in the rectangular hole, thereby fixing the frame in the rectangular hole.

Further, a bearing hole is formed in a side wall of the frame portion, and a shaft portion of a pair of levers inserted through an opening formed in the bottom portion is supported, and the levers are rotatably supported. . The lever is provided with a handle, and when the handle is operated, the lever rotates.

Further, a rib for connecting the levers is provided on the back surface of the handle, and a spring material extends from the rib. The spring material abuts against the bottom of the frame and urges the handle in a lock position direction in which a concave portion formed on the distal end side of the lever is locked by a lock pin provided on the device side. Further, the lever comes into contact with the edge of the opening, and the posture is held at the locked position. With such a configuration, the concave portion is locked to the lock pin, and the opening / closing member is locked in the closed state.

As described above, since the notch is provided in the frame portion or the handle and the spring material is not formed, dust and dirt do not enter the device side from the notch portion. Also, since there is no cutout portion, the appearance is good. Further, since the distance between the base of the spring material and the back surface of the handle is short, the spring material is less likely to set than the spring material formed with the notch.

To release the lock, the handle may be operated to separate the recess from the lock pin.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A handle mechanism according to this embodiment will be described.

As shown in FIGS. 1 to 3, an opening / closing door 16 is pivotally supported by a device via a hinge (not shown).
It can be opened and closed. The opening / closing door 16 is formed with a rectangular hole 16A at a position away from the hinge, and the handle mechanism 10 having a lock function is formed in the rectangular hole 16A.
Is attached.

The handle mechanism 10 includes a box-shaped housing 12 and a rectangular plate-shaped handle 14. A flange 26 projects at a right angle from the tip of the side wall 12B of the housing 12, and two claw portions 28 are formed on the side wall 12B so as to protrude outward.

These claws 28 are in the form of cantilever arms, and when the housing 12 is inserted into the rectangular holes 16A of the opening / closing door 16, they temporarily elastically deform inward and pass through the rectangular holes 16A. After the passage, the claw 28 recovers its shape, and the claw 28 and the flange 26 clamp the periphery of the rectangular hole 16 </ b> A to mount the housing 12 to the door 16.

A hole 30 is formed between the two claws 28, and a shaft 31 of a pair of levers 32 projecting from the back surface of the handle 14 is inserted into the hole 30. The lever 32 is pivotally supported so as to be rotatable.

On the other hand, an opening 20 is formed in the bottom 12 A of the housing 12, and the lever 32 is inserted through the opening 20 and comes into contact with the edge of the opening 20 so that the lever 32 is moved.
Is suppressed.

On the other hand, on the back surface of the handle 14, a rib 3 for connecting the levers 32 below the shaft portion 31 shown in FIG.
3 are standing. A leaf spring 35 extends upward from the tip of the rib 33 toward the shaft portion 31, and when the lever 32 is mounted on the housing 12, the tip comes into contact with the bottom 12 </ b> A of the housing 12 and bends. Due to the urging force of the leaf spring 35, the lever 32 moves around the shaft 31 as indicated by an arrow A.
Rotate in the direction.

As described above, since the leaf spring 35 and the handle 14 are formed integrally, the labor for assembling can be omitted, and the cost can be reduced by reducing the number of working steps. FIG.
As shown in (1), the notch is not provided in the housing 12 or the handle 14, and the leaf spring 35 is not formed, so that dust and dirt do not enter the device side from the notch.

Furthermore, since there is no cutout portion, the appearance is good. In addition, since the distance between the base of the leaf spring 35 and the back surface of the handle 14 is short, it is harder to set than the leaf spring 35 formed with the notch.

On the other hand, a lock pin 38 is provided on the device side, and a concave portion 34 is formed in the lever 32.
The concave portion 34 is formed in a direction in which the concave portion 34 is locked by the lock pin 38 when the handle 14 rotates in the direction of arrow A.

The lever 32 is in contact with the edge of the opening 20 so that even when the door 16 is open, the lever 3
2 is held in the locked position so as not to further rotate in the direction of arrow A.

On the other hand, an inclined surface 32A is formed from the edge of the concave portion 34 to the tip of the lever 32.
6 is closed, the inclined surface 32A is
To rotate the lever 32 in the direction of arrow B against the urging force of the leaf spring 35. When the concave portion 34 reaches the lock pin 38, the lever 32 rotates in the direction A, and the concave portion 3
4 is locked to the lock pin 38.

Thus, the door 1 can be rotated only by rotating the door 16 toward the device without operating the handle 14.
6 is locked in the closed state.

On the other hand, when a hand is inserted between the housing 12 and the handle 14 and the end 14A of the handle 14 is pulled (in the direction in which the door is opened), the lever 32 rotates in the direction of arrow B, and the locked state is released. You. For this reason, there is no possibility that the locking function may be damaged by forcibly pulling the door 16 before the locked state is released.

Next, a method for attaching the handle mechanism and a method for opening and closing the door according to this embodiment will be described.

First, the lever 32 is inserted through the opening 20 of the housing 12, and the shaft 31 is inserted into the hole 3 of the housing 12.
Insert at 0. Thus, the lever 32 is rotatably supported by the housing 12, and the handle 14 is mounted on the housing 12.

At this time, the lever 32 rotates in the direction of arrow A about the shaft portion 31 by the urging force of the leaf spring 35, comes into contact with the edge of the opening 20, and is held in the locked position.

Next, the housing 12 is inserted into the rectangular hole 16A from the front side of the opening / closing door 16 so that the concave portion 34 faces upward.

Then, the housing 12 is pressed to push the claw 2
8 is elastically deformed, the housing 12 is pushed in until the flange 26 abuts on the door 16, and the housing 12 is mounted on the door 16.

On the other hand, when the door 16 is closed, the inclined surface 32A of the lever 32 comes into contact with the lock pin 38 and resists the urging force of the leaf spring 35 simply by rotating the door 16 toward the device. To rotate the lever 32 in the direction of arrow B.
When the concave portion 34 reaches the lock pin 38, the lever 3
2 rotates in the direction A, the concave portion 34 is locked by the lock pin 38, and the door 16 is closed.

When the door 16 is opened, a hand is put between the housing 12 and the handle 14, and the end 14A of the handle 14 is turned in the direction of arrow B. And
When the lever 32 comes into contact with the edge of the opening 20, the recess 34
Is separated from the lock pin 38, and the door 16 is opened.

[0034]

According to the present invention having the above construction, there is no need to form a notch, and dust and dirt do not enter the device from the notch. Also, since there is no cutout portion, the appearance is good. Further, since the distance between the base of the spring material and the back surface of the handle is short, the spring material is less likely to set than the spring material formed with the notch.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a handle according to the present embodiment.

FIG. 2 is an exploded perspective view showing a handle mechanism according to the embodiment.

FIG. 3 is a sectional view showing a handle mechanism according to the embodiment.

FIG. 4 is an assembly view showing a handle mechanism according to the embodiment.

FIG. 5 is an exploded perspective view showing a conventional handle mechanism.

FIG. 6 is a sectional view showing a conventional handle mechanism.

FIG. 7 is an assembly view showing a conventional handle mechanism.

[Explanation of symbols]

 12 Housing (frame part) 14 Handle 28 Claw part 30 Hole part (bearing hole) 32 Lever 33 Rib 34 Concave part 35 Leaf spring (spring material)

Claims (1)

(57) [Claims] 1. A rectangular hole formed in an opening and closing member supported by a device so as to be openable and closable, a frame portion attached to the rectangular hole, and a rectangular hole projecting from a side wall of the frame portion and elastically deforming. Claw portion, a bearing hole formed in a side wall of the frame portion, and a shaft portion rotatably supported by the bearing hole. A pair of levers that abut against the edges of the lever to maintain the posture of the lock position, a concave portion formed on the tip end side of the lever and locked by a lock pin provided on the device side, and a lever provided on the lever. A handle for rotating the handle, a rib provided on the back surface of the handle to connect the levers, and a lock extending from the rib and abutting against the bottom of the frame to lock the recess with the lock pin. Bias the handle in the direction of the position And a spring member.