JP2592409B2 - Biaxial hinge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-shaft type having two pivots about the center of rotation and having a door capable of being opened to a position of 270 degrees with respect to a fixed frame such as a cabinet main body, a distribution box main body, or a building. It is about hinges.

[0002]

2. Description of the Related Art A conventional biaxial hinge is configured such that a fixed-side blade fixed to a fixed frame, a rotating-side blade fixed to a door, and one side connected to the fixed-side blade with a fixed pivot. It is composed of an intermediate blade connected to the rotating blade on the side with a movable pivot,
The intermediate blade rotates with respect to the fixed blade, and the pivot blade rotates with respect to the intermediate blade, whereby the door is opened at a wide angle with respect to the fixed frame.

[0003]

The problem here is that the intermediate blade is rotating about the fixed pivot with respect to the fixed blade, that is, the movable pivot is sufficiently separated from the fixed frame. When the turning-side vane starts rotating about the movable pivot with respect to the intermediate vane at a stage that is not in operation, the side portion of the door collides with the front portion of the fixed frame. Further, when the door is closed, a similar collision may occur even when the rotating blade is not integrated with the intermediate blade and does not rotate about the fixed pivot with respect to the fixed blade. This collision must be properly prevented because it causes distortion of the fixed frame and the door and peeling damage of the coating and the protective coating.

In addition, since the conventional two-axis hinge does not have a click mechanism, it is not possible to know that the door has reached the predetermined rotational position by the engagement sound or the transmission of vibration. Nor could it be held in an angular position.

Accordingly, it is an object of the present invention to rotate the intermediate blade relative to the fixed blade and the rotation of the rotating blade relative to the intermediate blade in a predetermined order, so that the collision between the fixed frame and the door may occur. It is impossible to provide a biaxial hinge which can clearly recognize that the door has been rotated to a predetermined position by engagement sound or vibration transmission and can also hold the door in the rotated position. .

[0006]

The biaxial hinge according to the present invention will be described below with reference to the reference numerals in the accompanying drawings. The biaxial hinge of the present invention is fixed to a fixed side blade plate 1 fixed to a fixed frame 25 and to a door 26. The fixed-side vane 3 has a fixed pivot 7 on one side.
And a slide lock plate 5 supported on the intermediate vane 2 so as to be movable in the longitudinal direction of the intermediate vane 2, the other end being connected to the rotating-side vane plate 3 by a movable pivot 6 on the other side. A bearing plate 4 fixed to the fixed-side vane plate 1 and supporting the fixed pivot 7;
A rotating cam disk 31 fitted to the movable pivot 6 and fixed to the rotating blade 3; a fixed cam disk 36 fitted to the fixed pivot 7 and fixed to the bearing plate 4; The pivot-side click plate 41 movably supported by the spring 13 toward the pivot-side cam disk 31 so as to be movable in the length direction of the pivot-side cam disc 31
And a fixed click plate 43 supported movably in the longitudinal direction of the intermediate blade plate 2 and urged by the spring 18 toward the fixed cam disk 36.

When the concave portion 19 at one end of the rotary blade 3 is engaged with the convex portion 23 at one end of the slide lock plate 5, the rotary blade 3, the intermediate blade 2, and the slide lock plate 5 are engaged.
Rotates around the fixed pivot 7 to a position of 180 degrees, and at the end of this rotation, the convex portion 24 at the other end of the slide lock plate 5 faces the concave portion 21 on the side surface of the bearing plate 4.
Is rotated about the movable pivot 6 to a position of 270 degrees,
The slide lock plate 5 is pushed by the rotation-side wing plate 3 and moves to the fixed pivot 7 side, and the projection 24 of the slide lock plate 5 engages with the concave portion 21 of the bearing plate 4 to fix the rotation-side wing plate 3. Axis 7
, The convex portion 44 of the fixed-side click plate 43 engages with the concave portion 47 of the fixed-side cam disk 36, and the rotating-side wing plate 3 moves to the position of 270 degrees around the movable pivot 6. When rotated, the convex portion 42 of the rotating side click plate 41
The dimensions of the respective components are set so that engages with the concave portion 33 of the rotating cam disk 31.

A 90-degree angular interval about the movable pivot 6 is set between the concave portion 33 on the side of the rotating cam disk 31 and the concave portion 19 at one end of the rotating blade 3, and the fixed cam disk is set. The concave portion 47 on the side surface 36 and the concave portion 21 on the side surface portion of the bearing plate 4
Is set at an angle of 45 degrees about the fixed pivot 7. The convex portion 42 of the rotation side click plate 41 and the convex portion 23 at one end of the slide lock plate 5 are at the same angular position with respect to the movable pivot 6, and the convex portion 44 of the fixed side click plate 43 and the other end of the slide lock plate 5. The projections 24 are at the same angular position with respect to the fixed pivot 7.

[0009]

When the door 26 is in the fully closed position, the rotating blade 3 is on an extension of the intermediate blade 2 as shown in FIG.
The convex portion 23 at one end of the slide lock plate 5 is engaged with the concave portion 19 of the rotating blade plate 3, while the convex portion 24 at the other end of the slide lock plate 5 is in contact with the side surface of the bearing plate 4. The slide lock plate 5 is immovably restrained, and the rotating blade 3 and the intermediate blade 2 are fixed to each other in a straight line. The convex portion 42 of the rotating side click plate 41 contacts the side surface of the rotating side cam disk 31, and the convex portion 44 of the fixed side click plate 43.
Is in contact with the side surface of the fixed-side cam disk 36.

When the door 26 is pulled forward to open the door, the intermediate blade 2 and the rotating blade 3 are integrally rotated about the fixed pivot 7 with respect to the fixed blade 1. When rotated to the 135 degree position as shown in FIG. 2, the convex portion 44 of the fixed side click plate 43 is urged by the spring 18 to engage with the concave portion 47 on the side surface of the fixed side cam disk 36, and the engaging sound is generated. Occurs. The vibration at the time of the engagement is transmitted to the fingertip of the door operator.
At this time, the convex portion 42 of the rotation side click plate 41 is in contact with the side surface of the rotation side cam disk 31.

When the door 26 is rotated in the opening direction around the fixed pivot 7 against the urging force of the spring 18, the fixed click plate 43 is pushed toward the movable pivot 6 by the fixed cam disk 36, and the fixed click plate 43 is fixed. The convex portion 44 of the side click plate 43 escapes from the concave portion 47 of the fixed cam disk 36. As shown in FIG. 3, when the rotation-side wing plate 3 rotates to the 180-degree position, the projection 24 of the slide lock plate 5 comes to a position facing the recess 21 of the bearing plate 4. The lock of the slide lock plate 5 is released.

When the rotary blade 3 is rotated in the opening direction about the movable pivot 6 from the 180-degree position, the convex portion 23 at one end of the slide lock plate 5 is pushed out from the concave portion 19 of the rotary blade 3. The slide lock plate 5 moves toward the fixed pivot 7. Due to this movement, the protrusion 24 at the other end of the slide lock plate 5 engages with the recess 21 on the side surface of the bearing plate 4, while the protrusion 23 at one end of the slide lock plate 5 moves to the end of the rotating blade 3. The slide lock plate 5 and the intermediate wing plate 2 are fixed at a position of 180 degrees with respect to the fixed side wing plate 1 so as to abut on the side surface of the section.

When the door 26 is further rotated in the opening direction, the rotating blade 3 rotates about the movable pivot 6 with respect to the intermediate blade 2, and is opened to 270 degrees as shown in FIG. You. When rotated to the 270 degree position in this manner, the convex portion 42 of the rotary click plate 41 is urged by the spring 13 and engages with the concave portion 33 on the side surface of the rotary cam disk 31 to generate an engagement sound. I do. The vibration at the time of the engagement is transmitted to the fingertip of the door operator. At this time, the convex portion 44 of the fixed side click plate 43 is in contact with the side surface of the fixed side cam disk 36.

When the door 26 is pushed in the closing direction from the 270-degree open position, only the rotary blade 3 rotates about the movable pivot 6 until the door 26 comes to the 180-degree position with respect to the fixed frame 25. When rotating further in the closing direction from the 180 degree position,
The convex portion 24 at the other end of the slide lock plate 5 is pushed out of the concave portion 21 of the bearing plate 4, and the convex portion 23 at one end of the slide lock plate 5 is engaged with the concave portion 19 of the rotating blade 3 again. Thus, while the rotating blade 3 is held in line with the intermediate blade 2, it rotates in the closing direction about the fixed pivot 7, and
After the click operation at the 5 degree position, the door 26 is fully closed to the position shown in FIG.

[0015]

In the embodiment shown in FIGS. 1 to 3, the rotary blade 3 is fixed to the upper and lower surfaces of the door 26 by screws 27 passing through the fixing holes 16. FIG. The fixed-side wing plate 1 is fixed to the fixed frame 25 by screws 22 passing through the fixing holes 30 of the vertical plate portion 1a. The slide lock plate 5 is superimposed on the intermediate wing plate 3,
The rotation side click plate 41 and the fixed side click plate 43 are further overlapped on the slide lock plate 5. Intermediate wing plate 2
The slide lock plate 5, rotatable side click plate 41 and fixed side click plate 43 housed between the front and rear vertical plate portions 2a and 2b so as to be slidable in the length direction are provided on the inner surfaces of the vertical plate portions 2a and 2b. It is guided by the projecting guide pins 14 and is prevented from falling off.

The distal end 7a of the fixed pivot 7 and the distal end 6a of the movable pivot 6 are swaged to prevent removal.
The rotation-side vane plate 3 is bent in a stepped manner between a portion fixed to the door 26 and a portion connected to the movable pivot 6. The bearing plate 4 is fixed to the vertical plate portion 1a of the fixed-side blade plate 1 by a screw 28 screwed into the screw hole 10 from the fixing hole 11 of the vertical plate portion 4a. One end of the intermediate blade 2 is inserted between the horizontal plate 4b of the bearing plate 4 and the horizontal plate 1b of the fixed blade 1. The other end of the intermediate blade 2 is overlapped with the end of the rotating blade 3. A relief notch 8 for the movable pivot 6 is provided in the horizontal plate portion 1b of the fixed blade 1. A packing 29 is mounted on the back of the door 26.

The rotation side cam disk 31 is overlapped on the end of the rotation side blade 3 with the pivot hole 32 aligned with the pivot hole 17 of the rotation side blade 3, and the lock pin 48 passing through the fixing hole 34 and the fixing hole 35. With this, it is fixed to the rotating blade plate 3. The fixed cam disk 36 is overlapped on the horizontal plate portion 4b of the bearing plate 4 with the pivot hole 37 aligned with the pivot hole 20 of the bearing plate 4, and the fixed hole 3
8 and the lock pin 40 passing through the fixing hole 39, the bearing plate 4
It is stuck to.

Spring 1 for biasing sliding of rotary side click plate 41
Reference numeral 3 denotes a tension coil spring. One end of the spring 13 is hooked on the base end 6 b of the movable pivot 6, and the other end of the spring 13 is a spring receiver 45 cut and raised by the rotation side click plate 41.
Has been caught on. The sliding bias spring 18 of the fixed side click plate 43 is also formed of a tension coil spring. One end of the spring 18 is hooked on the base end 7 b of the fixed pivot 7, and the other end of the spring 18 is connected to the fixed side click plate 43. Is hooked on the spring receiver 46 cut and raised. These biasing springs can be constituted by other spring means such as a compression coil spring.

The side surface of each end of the intermediate wing plate 2 has a pivot hole 12,
15 are formed in a semi-arc shape, and their radii coincide with the radii of the rotation-side cam disk 31 and the fixed-side cam disk 36. The end side surface of the bearing plate 4 is also formed in a semicircular shape centered on the pivot hole 20, and the radius thereof is set to the fixed side cam disk 3.
6, and the arc-shaped concave portion 21 is provided by cutting out a part of the side surface. One end side surface of the rotating blade 3 is also formed in a semicircular shape centered on the pivot hole 17, the radius of which coincides with the radius of the rotating cam disk 31, and the circular concave portion 19. Is provided by cutting out a part of the side surface. The protrusions 23 at both ends of the slide lock plate 5,
24 is also formed in an arc shape.

[0020]

As described above, in the biaxial hinge of the present invention,
The slide lock plate 5 is pushed by the rotating blade 3 or the bearing plate 4 in accordance with the opening angle of the door 26 and moves along the longitudinal direction of the intermediate blade 2 to slide into the recess 19 of the rotating blade 3. The intermediate blade 2 and the rotation-side blade 3 are fixedly held to each other by the engagement of the protrusions 23 at one end of the lock plate, while the protrusion 24 at the other end of the slide lock plate 5 Since the intermediate blade 2 is fixedly held to the fixed wing body 1 by engaging with the concave portion 21 of the side surface portion, the intermediate blade 2 is bent in the process of opening the rotating blade 3 from the 180-degree position to the 270-degree position. That is not. Since the rotation of the intermediate blade 2 with respect to the fixed blade 1 and the rotation of the rotating blade 3 with respect to the intermediate blade 2 are correctly performed in a predetermined order, the collision between the fixed frame 25 and the door 26 cannot occur. Become.

Further, according to the present invention, when the rotary wing plate 3 is rotated to a position of 135 degrees around the fixed pivot 7, the convex portion 44 of the fixed click plate 43 becomes the concave portion 47 of the fixed cam disk 36.
And the rotating-side vane plate 3 is
When the door 26 is rotated to the 70-degree position, the convex portion 42 of the rotary click plate 41 engages with the concave portion 33 of the rotary cam disk 31.
It is possible to clearly recognize the engagement sound between the recesses 33 and 47 and the engagement vibration transmitted to the fingertip, and to hold the door 26 in the open position with a constant force. .

[Brief description of the drawings]

FIG. 1 is a plan view of a biaxial hinge according to an embodiment of the present invention when it is fully closed.

FIG. 2 is a plan view when the hinge is opened at 135 degrees.

FIG. 3 is a plan view when the hinge is opened by 180 degrees.

FIG. 4 is a plan view when the hinge is opened at 270 degrees.

FIG. 5 is an exploded perspective view of the hinge.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 fixed blade 2 intermediate blade 3 rotating blade 4 bearing plate 5 slide lock plate 6 movable pivot 7 fixed pivot 13 biasing spring 18 biasing spring 31 rotating cam disk 36 fixed cam disk 41 rotating Side click plate 43 Fixed side click plate

Claims (1)

(57) [Claims] 1. A fixed-side blade 1 fixed to a fixed frame 25.
And a rotating blade 3 fixed to the door 26, and an intermediate blade 2 connected to the fixed blade 1 at one side by a fixed pivot 7 and connected to the rotating blade 3 at the other side by a movable pivot 6. A slide lock plate 5 supported on the intermediate blade 2 so as to be movable in the longitudinal direction of the intermediate blade 2, a bearing plate 4 fixed to the fixed-side blade 1 and supporting a fixed pivot 7, and a movable pivot 6 A fixed cam disk 31 fitted to the fixed blade 7 and fixed to the bearing plate 4; a fixed cam disk 31 fixed to the fixed blade 7 and fixed to the bearing plate 4;
A rotating click plate 41 movably supported by the spring 13 toward the rotating cam disk 31 and movably supported in the longitudinal direction of the intermediate blade 2, and moved in the longitudinal direction of the intermediate blade 2 A fixed-side click plate 43 movably urged by the spring 18 toward the fixed-side cam disk 36 and supported by the movable-side disk 36. In the state where the convex portion 23 is engaged, the rotating blade 3, the intermediate blade 2, and the slide lock plate 5 rotate around the fixed pivot 7 to a position of 180 degrees, and at the end of the rotation, the side surface of the bearing plate 4 When the convex portion 24 at the other end of the slide lock plate 5 faces the concave portion 21 and the rotating blade 3 rotates to the position of 270 degrees around the movable pivot 6, the slide lock plate 5 contacts the rotating blade 3. Pressed to move to the fixed pivot 7 side, When the convex portion 24 of the plate 5 is engaged with the recess 21 of the bearing plate 4, the rotation-side blades (3) rotated to 135 degree position about a fixed pivot 7, the fixed-side click plate 43
Is engaged with the concave portion 47 of the fixed-side cam disk 36,
A biaxial type in which the convex portion 42 of the rotary click plate 41 is engaged with the concave portion 33 of the rotary cam disk 31 when the rotary wing plate 3 rotates to a position of 270 degrees around the movable pivot 6. hinge.