JP2903468B1 - Tightening handle device - Google Patents

Abstract

An object of the present invention is to provide a fastening handle device that can be inserted into an engagement tool from any end of a fastening plate, thereby closing and fastening a door irrespective of the rotation direction of the handle. SOLUTION: In a tightening handle device provided with a tightening plate portion 1b whose peripheral edge has a gently changed thickness for closing and tightening a door by passing through a gap 2a of an engaging tool 2, a tightening plate portion 1b is provided. Is formed in a substantially sector shape, and the change in the thickness of the peripheral edge thereof is formed substantially symmetrically between both ends of the fastening plate portion 1b. The door can be closed and tightened regardless of the rotation direction of the handle 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastening handle device suitable for a door requiring airtightness such as a commercial refrigerator.

[0002]

2. Description of the Related Art Various handle devices for closing a door have been proposed. However, in a door of a commercial refrigerator or the like, not only the door is closed but also a certain airtightness is required when the door is closed. There are many.

Therefore, conventionally, in addition to a handle device for closing a door, a fastening handle device provided with an appropriate mechanism for improving the airtightness of a closed door has been proposed. Hereinafter, a conventional tightening handle device will be described with reference to FIG. FIG. 3A is a front view showing a state in which a conventional fastening handle device is attached to a door body 31 and a door frame 32, and FIG. 3B is a bottom view thereof.

[0004] The handle device comprises a handle 21 attached to a door body 31 and an engaging member 2 attached to a door frame 32.
And 2.

[0005] The handle 21 includes a handle portion 21a and a fastening plate portion 21b. The handle part 21a is the door body 31
Is rotated in parallel with the door surface of the
Is one that rotates together with this.

[0006] The clamping plate 21b is formed in a semicircular shape, and its peripheral edge is thinnest at the left end in the figure and thickest at the opposite end 21b '. As shown in FIG. 3 (b). Further, a stopper 21b ″ is provided at the end 21b ′.

The engaging member 22 has a U-shape which is open toward the handle 21 and has a space 22a. The lower surface of the upper plate of the engagement tool 22 is provided with a hemispherical contact portion 22b. The contact portion 22b can smoothly contact the upper surface of the peripheral edge of the fastening plate portion 21b.

In the conventional fastening handle device having the above-mentioned structure, when the handle portion 21a is rotated, the fastening plate portion 21b is also rotated with the rotation, and the periphery of the fastening plate portion 21b is engaged.
The door body 31 is closed by passing through the second gap 22a.

When the contact portion 22b comes into contact with the upper surface of the thickest position 21b 'of the peripheral edge of the clamp plate 21b, the contact portion 2b and the clamp plate 1b depend on the thickness of the peripheral edge.
b, a pressing force perpendicular to the door surface is generated mutually. As a result, a tightening force acts on the door body 31 and the door frame 32 to press each other in the closing direction, and these can be closed airtightly.

[0010]

However, in the conventional fastening handle device, when closing the door, it is necessary to insert the fastening plate portion 21b from the left end of the fastening plate portion 21b into the engagement tool 22, and to close the door. Since it is impossible to insert the door from the front, the rotation direction of the fastening plate portion 21b when closing the door is limited to one direction, and the usability is not always good.

Accordingly, an object of the present invention is to make it possible to insert the fastening plate from any end of the above-mentioned fastening plate into the engagement tool,
Accordingly, it is an object of the present invention to provide a fastening handle device which enables closing and fastening of a door irrespective of the rotation direction of the handle.

[0012]

According to the present invention, a fastening plate attached to one member of a door and rotated in parallel with the door surface in response to rotation of a handle, and attached to the other member of the door. An engagement tool having a gap through which the periphery of the clamping plate passes when it is rotated, wherein the thickness of the periphery of the clamping plate gradually increases and changes from its end, and its maximum In a tightening handle device which abuts on the engaging tool at a position of a thickness to generate a tightening force in a direction perpendicular to a door surface, the tightening plate is formed in a substantially sector shape, and
A tightening handle device is provided, wherein the change in the thickness of the peripheral edge is formed substantially symmetrically between both ends of the tightening plate. According to this means, the clamping plate is formed in a substantially sector shape, and the change in the thickness of the peripheral edge is formed substantially symmetrically between both ends of the clamping plate. It can be inserted into the engagement tool. Therefore,
The door can be closed and tightened regardless of the rotation direction of the handle.

In the present invention, one member of the door or the other member of the door is a door and its frame, or
Refers to members that are mutually opened and closed, such as a door body and a door body. The fastening plate may be formed integrally with the handle. That the change in the thickness of the peripheral edge is formed substantially symmetrically between both ends of the fastening plate means that the thickness of the peripheral edge gradually increases from one end of the fastening plate, and the maximum thickness is approximately in the middle of the arc. , And thereafter, gradually decreased to reach the other end.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1A is a front view in which a fastening handle device A according to the present invention is attached to a door body 11 and a door frame 12, and FIG. 1B is a bottom view thereof. FIG.
Shows an aspect in which the door is not closed. The handle device A includes a handle 1 attached to the door body 11,
And an engaging device 2 attached to the door frame 12.

The handle 1 has a handle portion 1a and a fastening plate portion 1b. The handle portion 1a is rotated in parallel with the door surface of the door body 11, and the fastening plate portion 1b is rotated integrally therewith. Further, the handle 1 may be provided with a ratchet mechanism or the like for temporarily stopping the rotation of the handle portion 1a at the rotation position in the mode of FIG. The fastening plate portion 1b is formed in a sector shape with a cutout on the left side, and the peripheral edge thereof is thinnest at both ends on the cutout side, and at the center (1b ′) of the arc. It is a gradual change so that it becomes the thickest (Fig. 1
(B)). This change in thickness is substantially symmetric with respect to the center position (1b ').

The engaging member 2 has a U-shape which is open toward the handle 1, and has a gap 2a. The lower surface of the upper plate of the engagement tool 2 is provided with a hemispherical contact portion 2b. The contact portion 2b can smoothly contact the upper surface of the peripheral edge of the fastening plate portion 1b.

Next, the door 1 using the fastening handle device A
Regarding the closing and tightening of 1, referring to FIG. 2 (a) which is a front view of a mode in which the handle portion 1 a is turned 90 degrees in the direction of the arrow from the mode of FIG. 1 and FIG. 2 (b) which is a bottom view thereof. explain. In the embodiment of FIG. 1A, the fastening plate 1b
Since the notched portion is located in the direction of the engagement tool 2, the fastening plate 1b is not inserted into the gap 2a of the engagement tool, and the door 11 can be freely opened.

When the handle portion 1a is turned in the direction of the arrow from the state shown in FIG. 1A, the fastening plate portion 1
b also rotates, and its periphery passes through the gap 2a of the engagement tool 2 (FIGS. 2A and 2B), thereby restricting the opening of the door body 11. That is, in the embodiment of FIG.
The upper surface of the peripheral edge of b and the abutting portion 2b of the engagement tool 2 are in a state of being in direct contact with each other, and when the door 11 is to be opened, they are caught. become.

When the handle portion 1a is further rotated by 90 degrees in the same direction from the embodiment shown in FIG.
Comes into contact with the upper surface of the thickest position 1b 'of the peripheral edge of the fastening plate 1b (not shown). At this time, according to the difference between the thickness of the peripheral edge of the fastening plate 1b at the position just in contact with the contact portion 2b and the thickness of the thickest position 1b 'in FIG. Then, a pressing force perpendicular to the door surface is generated mutually. As a result, a tightening force acts on the door body 11 and the door frame 11 to press each other in the closing direction.

Accordingly, in the fastening handle device A, the door body 11 and the door frame 12 can be closed and these can be fastened to each other in accordance with the rotation of the handle 1a. When the closing and tightening of the door body 11 and the door frame 12 are released, the handle 1a is further rotated by 180 degrees to reach the state of FIG. 1 again, and the door body 11 can be opened.

In the tightening handle device A, the door can be opened, closed and tightened as described above.
In particular, since the thickness of the fastening plate portion 1b is formed substantially symmetrically with respect to the center position (1b '), the fastening plate portion 1b is formed.
Any end of the periphery can be passed through the gap 2a of the engagement tool 2. Therefore, whether the handle 1 is rotated clockwise or counterclockwise, the door can be closed and tightened similarly.

[Brief description of the drawings]

FIG. 1A is a front view in which a fastening handle device A according to the present invention is attached to a door body 11 and a door frame 12. FIG. FIG. 2B is a bottom view of FIG.

FIG. 2A is a front view illustrating a mode in which a handle portion 1a is turned 90 degrees from the mode in FIG. FIG. 2B is a bottom view of FIG.

FIG. 3A is a front view in which a conventional fastening handle device is attached to a door body 31 and a door frame 32; FIG. 3B is a bottom view of FIG.

[Explanation of symbols]

 A Tightening handle device 1 Handle 1a Handle portion 1b Tightening plate portion 2 Engagement tool 2a Air gap 2b Contact portion 11 Door body 12 Door frame

Claims (1)

(57) [Claims] 1. A fastening plate attached to one member of a door and rotated in parallel with a door surface in response to rotation of a handle, and a fastening plate attached to the other member of the door, wherein a peripheral edge of the fastening plate is rotated during the rotation. An engaging tool having a gap that passes therethrough, wherein the thickness of the peripheral edge of the tightening plate is gradually increased from its end and changed, and the engaging tool is positioned at the position of the maximum thickness. In a fastening handle device which abuts and generates a fastening force in a direction perpendicular to a door surface, the fastening plate is formed in a substantially sector shape, and a change in a thickness of a peripheral edge thereof is formed substantially symmetrically between both ends of the fastening plate. A fastening handle device, characterized in that it is made.