JPS5836770Y2 - pivotable hinge - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pivot-movable hinge in which a pivot that connects two vanes moves in parallel or oscillates relative to a fixed frame such as a building or a machine body.

For example, when a copy is made with a copying machine, the original to be copied is placed in a transparent liquid above the copying machine body, and is pressed down from above by a presser plate attached to the copying machine body with a hinge.

However, in reality, original documents vary widely, from relatively thin documents such as drawings and documents to thicker documents such as books and dictionaries.
When the original was quite thick, the free end of the presser plate on the side opposite to the hinge attachment side lifted up.

Also, when opening an original of a certain thickness or more and copying with the binding line perpendicular to the axis of the presser plate hinge, if there is a certain level of disparity in thickness between the left and right sides of the binding line. In this case, the thicker left and right edges of the presser plate were lifted up.

When the presser plate is lifted in this manner, the entire surface of the original document does not adhere to the transparent plate evenly, making it impossible to make a high-quality copy.

Therefore, it is necessary for the copy provider to manually press the lifted presser plate to press the original against the transparent plate.

However, conventional general hinges are simply two wing plates connected by a single pivot; one wing plate is fixed to the main body of the copying machine, the other wing plate is fixed to a presser plate, and the hinge The axis cannot be moved.

Therefore, when pushing down the lifted presser plate by hand, an excessive force is applied to the presser plate or the hinge, or a large force is locally applied to the transparent plate, which is a problem.

Accordingly, an object of the present invention is to provide a hinge of a movable pivot type in which a pivot that connects two vanes can be translated and rotated relative to a fixed frame such as a machine body.

Hereinafter, referring to the drawings, the pivotable hinge of the present invention connects one wing plate 1 and the other wing plate 2 by a pivot shaft 3, slides and guides them in a direction perpendicular to the pivot shaft 3, and connects one wing plate 1 and the other wing plate 2 to Wing plate 1
The rotary base plate 4 is fitted onto the rotary base plate 4, and the rotary base plate 4 is connected to the fixed base plate 5 by an orthogonal pivot 6 so as to rotate along the fixed base plate 5.

In the illustrated embodiment, an orthogonal pivot shaft 6 that pivotally connects the rotary base plate 4 and the fixed base plate 5 passes through their centers, and its tip is caulked within a circular seat 7 at the center of the rotary base plate.

This circular seat part 7 protrudes toward the fixed base plate 5, and around the circular seat part 7, a plurality of small-diameter protrusions 8 are also provided to protrude toward the fixed base plate 5.

These circular seat portions 7 and small-diameter protrusions 8 come into sliding contact with the surface of the fixed substrate 5 when the rotating substrate 4 swings and rotates about the pivot 6, and the rotating substrate 4 rotates in a plane parallel to the fixed substrate 5. We encourage you to do so.

The left and right ends of the rotary base plate 4 are folded back to have a U-shaped cross section to form a pair of sliding guide pieces 9 and 10, which include left and right protruding ends of a spring carrying block 11 fixed to one wing plate 1. Part 1
2 and 13 are fitted.

The protruding ends 12 and 13 of the spring carrying block 10 are disposed at right angles to the vane connection pivot 3, and the sliding guide pieces 9,
10 are parallel to each other, the block projecting ends 12,
When 13 slides along the sliding guides 9, 10, the rotary base plate 4 will move in a direction perpendicular to its pivot axis 3.

Sliding guide piece 9. ] At the lower end of O, there is a falling prevention piece 2 of the blade plate 1
7 and 28 are curved.

The hinge shaft 3 passes through a rotation stop block 14 fixed to the other wing plate 2, and this rotation stop block 1
4 has two mutually perpendicular flat surfaces 16 , 17 connected by a cam surface 15 .

One flat surface portion 16 is parallel to the main body portion 2a of the vane 2, and the other flat surface portion 17 is perpendicular to the vane main body portion 2a.

The two compression coil springs 18 housed in the spring carrying block 11 have their base ends in contact with the end spring receiving pieces 19 of the vane 1, and the other ends in contact with the spring abutment plate 20.

In this example, which is used to attach an original holding plate to a copying machine, the fixed board 5 supporting one wing plate 1 is fixed to the copying machine body 22 using the attachment hole 21, and the other wing plate 2 is Mounting hole 2
3 to be fixed to the presser plate 24.

As shown in FIG. 4, when the original document 26 on the transparent plate 25 is pressed down by folding down the presser plate 24, the spring abutment plate 20, which is biased by the spring 18, is pressed against the flat surface portion 16 of one of the rotation stopper blocks. Since the wing plate 2 is in pressure contact with the blade plate 2, rotation of the wing plate 2 is suppressed, and the presser plate 24 is held in the horizontally laid position shown in FIG.

When the presser plate 24 is lifted after copying is completed, the spring abutment plate 20 moves toward the flat surface portion 16 as the wing plate 2 rotates.
is pushed down by the spring contact plate 20 and the cam surface portion 1.
The moment the point of contact with the blade 5 crosses the midpoint of the cam surface portion 15, the blade 2 is automatically urged to rotate in the upright direction.

Thus, as shown in FIG. 5, the spring abutment plate 20 comes into pressure contact with the other flat surface portion 17 of the rotation stopper block, so that the rotation of the vane plate 2 is again inhibited, and the presser plate 24 is held in an upright position. Ru.

Therefore, when replacing the original copy, use the presser plate 2 with one hand.
This can be done easily and efficiently without having to hold the original document 26, and the entire weight of the presser plate 24 can be used to press the original document 26.

In this example, when the original 26 is thick, the wing plate 1 slides upward along the sliding guide pieces 9 and 10 of the rotating board 4, and the wing plate 2 and the holding plate 24 are connected to the transparent plate 25. Translated upward to increase the spacing.

In addition, when the binding of the original 26 is placed at right angles to the hinge axis 3 and the original 26 is placed on the transparent plate 25 with the left and right openings being unequal with respect to the binding, the presser plate 2
The rotating board 4 swings and rotates about the orthogonal axis 6 so that the stitched portion of the original document 26 does not rise excessively.

In this way, whatever the thickness of the original 26, the way the original 26 is opened and its arrangement, the retaining plate 24 will not lift up undesirably at its free or side edges, so that no hinges or The entire surface of the original document 26 can be evenly brought into close contact with the transparent plate 25 without applying an unreasonable load to the holding plate and the transparent plate.

As described above, the hinge of the present invention connects the two vanes 1 and 2 by the pivot 3, and slides and guides one of the vanes 1 in a direction perpendicular to the pivot 3 to fit it into the rotating base plate 4. Since this rotary board 4 is connected to the fixed board 5 by the orthogonal pivot 6 so as to rotate along the fixed board 5, the fixed board 5 is fixed to a fixed frame such as the machine body, while the wing plate 2 is fixed. When fixed to a door, a holding plate, etc. that is to be rotated with respect to the fixed frame, the hinge pivot 3 moves in parallel or rotates with respect to the fixed frame, thereby achieving the required operation of the layer or holding plate. , can be secured.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an exploded perspective view of a pivotable hinge, FIG. 2 is a front view of the hinge, and FIG. 3 is a plan view of the hinge. 4 is a sectional view taken along the line A--A in FIG. 3, and FIG. 5 is a right side view of the hinge when the blade is in an upright state. DESCRIPTION OF SYMBOLS 1... One wing plate, 2... Other wing plate, 3... Pivot, 4... Rotating board, 5...
...Fixed board, 6... Orthogonal axis, 9゜1
0... Sliding guide piece, 11... Spring carrying block, 14... Rotation stop block, 20...
... Spring receiving plate, 22 ... Copy machine body, 2
4... Pressing plate, 25... Transparent plate, 26
······original.

Claims (1)

[Scope of utility model registration request] One wing plate 1 and the other wing plate 2 are connected by a pivot 3,
One wing plate 1 is fitted into the rotary base plate 4 by sliding guidance in a direction perpendicular to the pivot shaft 3, and the rotary base plate 4 is connected to the fixed base plate 5 by an orthogonal pivot shaft 6 so as to rotate along the fixed base plate 5. Pivot movable hinge.