JP3053076B2 - Door fastening device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the fastening of a door for pressing and sealing a door hinged to an opening of a fixed frame such as a cabinet body or a switchboard storage box body in a closed position with respect to the frame body. The present invention relates to a device, particularly a door in which a waterproof packing is interposed between a door and a frame, and the door is effectively applied to a system in which the door is locked to the frame in a closed position by a lock member operated by operation of a lock handle. The present invention relates to a tightening device.

[0002]

2. Description of the Related Art A lock handle device is used as a mechanism for locking a door hinged to an opening of a fixed frame body such as a cabinet body or a switchboard storage box body to the frame body in a closed position. When the lock handle of the door is rotated to a predetermined position in the closed position, a lock member such as a lock plate rotates inside the door in conjunction with the rotation and engages with the engagement portion of the frame. . On the other hand, there is known a waterproof type door in which a waterproof packing is interposed between a door and a fixed frame, and the waterproof packing is compressed between the door and the fixed frame at a closed position to increase hermeticity. When the lock handle device is applied to such a waterproof door, when the lock plate is engaged with the engaging portion of the fixed frame, the door is further pulled inward by an amount corresponding to compressing the waterproof packing. It is necessary to form a special engagement slope on the engagement portion or the lock plate. Such a special interengaging portion needs to be designed each time, which contributes to an increase in cost.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a method for simply engaging an engaging portion of a fixed frame without changing either the engaging portion of the standard fixed frame or the lock plate of the lock handle device. It is an object of the present invention to provide a door fastening device that can be configured as a waterproof packing type by simply fixing the door to the vicinity.

[0004]

According to the present invention, in order to solve the above-mentioned problems, a base member 2 fixed to an inner surface C1 of a fixed frame C, and a non-tightened position supported by the base member 2 The tightening device 1 is provided with a tightening member 3 rotatable between a tightening position and a spring 5 for urging the tightening member 3 to return to the non-tightening position. The base member 2 has a substantially rectangular mounting plate portion 6 closely adhered to the inner side surface C1 of the fixed frame C, and a bearing plate portion standing upright at a right angle opposite to both side edges of the mounting plate portion 6. 7 is provided. The fastening member 3 includes a fastening member body 10 and the fastening member body 10.
And a pressing roller 11 which is supported by the shaft. A substantially rectangular substrate portion 12 is provided on the tightening member main body 10, and a bearing cylinder portion 13 is formed at a base end thereof. The bearing cylinder 13 is supported between the bearing plates 7 of the base member 2. In the substrate part 12,
A pair of roller support plates 14, 14 are erected at right angles to each other from substantially the center of both side edges. Further, a contact surface 17 is formed on the surface of the roller support plate portion 14 on the tip end side of the substrate portion 12 in the rising direction. The pressing roller 11 is a roller supporting plate 1
It is rotatably supported between 4, 14 and is arranged so as to approach the mounting plate 6 at the non-tightening position and to be separated from the mounting plate 6 at the tightening position. When the lock plate W, which is a lock member, rotates in conjunction with the locking operation of the lock handle H, the contact surface 17 is pushed by the end surface W1 in the rotation direction, and the tightening member 3 moves to the tightening position side. Rotate. During this rotation, the pressing roller 11 presses the one side surface W2 of the lock plate W integrally with the door D toward the inside of the fixed frame C so that the door D is pressed against the fixed frame C. Therefore, the door D can be configured to be waterproof and sealed by simply applying the lock plate W used for a normal door as it is and attaching the fastening device 1 to the fixed frame C. The fastening device 1 of the present invention can be applied to a lock rod that replaces the lock plate W as long as it operates in parallel with the door D.

[0005]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view of the operation of the tightening device, FIG. 2 is a plan view of the mounted state of the tightening device, FIG. 3 is a front view of the tightening device,
FIG. 4 is a side view of the fastening device, and FIG. 5 is a plan view of the fastening device.

In FIG. 2, a door D is hinged to an opening of a fixed frame C such as a cabinet body or a switchboard storage box body. A lock handle device L for locking to the frame C in the closed position is attached to the door D. The lock handle device L rotates the lock plate W as a lock member inside the door D by rotating the handle H to the lock position, and engages the tip end thereof with the engagement portion E of the frame C. Structure. Frame C and door D
, A waterproof packing P is interposed. The packing P includes the frame C and the door D when the door D is locked.
And the frame C and the door D are sealed.

The fastening device 1 of the present invention is provided on the inner side surface C1 adjacent to the engaging portion E of the fixed frame C or independently, and is located just before the end of the locking operation of the lock handle device L. In this case, the door D is engaged with the lock plate W as the lock member, and in cooperation with the lock plate W, the door D is pulled toward the frame C until the packing P is compressed.

The fastening device 1 comprises a base member 2 fixed to an inner side surface C1 of a fixed frame C, and a fastening member 3 rotatably supported by a pivot 4 on the base member 2. Is done. In the illustrated embodiment, the tightening device 1 is mounted on the frame C so that the pivot 4 is disposed horizontally, but is not limited thereto. The fastening member 3 is shown in FIG.
1B and the tightening position shown in FIG. 1B, and is urged by a spring 5 to return to the non-tightening position.

3 to 5, the base member 2
Is a substantially rectangular mounting plate portion 6 fixed to the vertical inner side surface C1 of the fixed frame member C, and stands upright at right angles to the inside of the fixed frame member C from both side edges of the mounting plate portion 6. And a pair of bearing plate portions 7 horizontally opposed to each other. Bearing plate 7,
The pivot 4 is horizontally supported between the seven. A stop surface 8 parallel to the mounting plate 6 is formed above the end of the bearing plate 7, and a sliding support surface 9 concentric with the pivot 4 is formed below the stop surface 8. The stop surface 8 bears against the clamping member 3 and defines its non-clamped position. The sliding support surface 9 always slidably contacts the fastening member 3 and supports the fastening member 3.

The tightening member 3 includes a tightening member main body 10 and a pressing roller 11 supported by the tightening member main body 10. The fastening member main body 10 includes a substantially rectangular substrate portion 12, a bearing cylinder portion 13 formed at a base end edge of the substrate portion 12, and a pair of roller support plate portions 14 erected at right angles from both side edges of the substrate portion 12. And The bearing cylinder 13 is supported by the pivot 4 between the bearing plates 7 of the base member 2. The roller support plate portions 14 are opposed to each other and stand at right angles from substantially the centers of both side edges of the substrate portion 12. A corresponding stop surface 15 that abuts against the stop surface 8 of the bearing plate portion 7 and a slide surface that is always slidably contacted with the slide support surface 9 on the side edge of the roller support plate portion 14 on the bearing cylinder portion 13 side. 16 are formed. The front end side of the substrate portion 12 is bent, and the surface of the roller support plate portion 14 in the rising direction is a contact surface 17 that contacts the lock plate W.

The pressing roller 11 is rotatably supported between the roller supporting plates 14 by a pivot 18.
It is arranged so as to approach the mounting plate 6 at the non-tightening position and to be separated from the mounting plate 6 at the tightening position.

As shown in FIG. 1, when the lock plate W is rotated in conjunction with the locking operation of the lock handle H, the contact surface 17 is pressed against the end surface W1 in the direction of rotation of the lock plate W, and the tightening is performed. The attachment member 3 is configured to rotate toward the fastening position. During this rotation, the pressing roller 11 is displaced from the position a to the position b in FIG. 1, and the one side surface W2 of the lock plate W is pulled into the fixed frame C integrally with the door D by the distance d. The door D is pressed against the fixed frame C while compressing the packing P shown in FIG. While the packing P is compressed, the reaction force is applied to the fastening member 3 via the lock plate W and the pressing roller 11. However, since the fastening member 3 is always supported by the bearing plate 7 of the base member 2 via the sliding surface 16 and the sliding support surface 9, stress is dispersed and there is no fear of breakage.

The present invention is not limited to the illustrated embodiment. For example, when the lock member is a lock plate W
Alternatively, the tightening device 1 can be applied to a lock rod that is pivotally attached to a lock plate W or the like and extends vertically or horizontally on the door. A spacer (not shown) is provided between the inner side surface C1 of the frame C and the base member 2, so that the mounting position can be easily adjusted.

[0014]

According to the present invention constructed as described above, the fastening device is simply fixed without changing any of the engaging portion of the standard fixing frame or the lock plate of the lock handle device. There is an effect that the door can be configured as a waterproof packing type simply by being fixed to the vicinity of the engagement portion of the frame.

[Brief description of the drawings]

FIG. 1 is an operation explanatory view of a fastening device.

FIG. 2 is a plan view of the fastening device in an attached state.

FIG. 3 is a front view of the fastening device.

FIG. 4 is a side view of the fastening device.

FIG. 5 is a plan view of the fastening device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tightening device 2 Base member 3 Tightening member 4 Axis 5 Spring 6 Mounting plate part 7 Bearing plate part 9 Sliding support surface 10 Tightening member main body 11 Press roller 12 Substrate part 13 Bearing cylinder part 14 Roller support plate part 16 Sliding Moving surface 17 Contact surface 18 Axis C Fixed frame C1 Inner surface D Door W Lock plate (Lock member) W1 End surface in traveling direction W2 Side surface

Claims (3)

(57) [Claims] 1. A fastening device for use in a system for pressing and sealing a door hinged to a fixed frame to a fixed frame in a closed position by operating a lock handle attached to the door, A base member fixed to the inner surface of the fixed frame, a clamping member pivotally supported by the base member and rotatable between a non-tightened position and a tightened position; and a non-tightened tightening member. A spring for urging the base member to return to a position, wherein the base member has a substantially rectangular mounting plate portion closely adhered to an inner surface of the fixed frame body, and a side edge of the mounting plate portion. A pair of bearing plate portions that stand at right angles to each other, and wherein the tightening member includes a tightening member main body and a pressing roller pivotally supported by the tightening member main body; The member body includes a substantially rectangular substrate portion and a bearing plate of the base member formed at a base end edge of the substrate portion. A bearing cylinder portion pivotally supported therebetween, a pair of roller support plate portions standing at right angles to each other from substantially the center of both side edges of the substrate portion, and a roller support plate portion located at the tip end side of the substrate portion. And a contact surface formed on a surface in an upright direction, wherein the pressing roller is rotatably supported between the roller support plate portions, approaches the mounting plate portion in a non-tightened position,
The contact surface is pushed by the end surface in the traveling direction of the lock member interlocked with the lock operation of the lock handle, and the tightening member is turned toward the tightening position. During the movement, the pressing roller presses one side surface of the lock member integrally with the door toward the inside of the fixed frame so as to press the door against the fixed frame, thereby closing the door. Attachment device. 2. The fastening member is pushed from a non-locking position to a locking position by a locking member that moves substantially parallel to an inner side surface of the fixed frame, and rotates from the non-tightening position to the tightening position. The support member is pivotally supported by the base member at a position closer to the fixed frame than the moving path of the lock member, and the contact surface is arranged to cross the moving path of the lock member. Item 2. A door fastening device according to Item 1. 3. The door according to claim 1, wherein the roller support plate of the tightening member is always in sliding contact with an edge of the bearing plate of the base member and is supported by the bearing plate. Tightening device.