JPS6015632A - Copying device - Google Patents

Abstract

PURPOSE:To move an optical system smoothly by fixing a belt, which is stretched around rollers in both ends of a holding body of a ball, to both of an outside rail and an inside rail in an optical system scanning mechanism where both rails are connected to each other through the ball and the holding body of the ball is moved freely between both rails. CONSTITUTION:Since an outer member 21 and an inner member 22 are connected to each other through balls 23 in respective curved parts 21a and 22a, the optical system is moved smoothly by rolling friction. Though retainers 24 holding balls 23 are placed between both members and are moved freely, balls 23 are not rotated and are moved by rolling friction if retainers 24 are locked. For the purpose of this movement of balls 23, rollers 27 are provided in both ends of the retainer 24, and a belt 29 is stretched around them, and the belt 29 is fixed to both members, and thus, the retainer 24 is moved forcibly in the half speed of this movement in accordance with the movement.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a copying device, and particularly to a copying device that can smoothly move optical elements such as a mirror or a document holder at high altitude. be.

[Prior art]

Conventionally, in copying machines, optical elements such as mirrors or document placement tables can be moved by providing a moving rail between the machine base and the machine base. A long outer sheath provided on one side, and an inner sheath that is located inside the outer sheath and supported by a retainer that holds the wire and ball, and is provided on the other of the FA stand or the optical element. The outer sheath and the inner sheath are configured to move relative to each other. However, when such a moving rail moves relative to each other at high speed, the retainer can keep up with the movement of the inner men due to inertia, especially at the start with rapid acceleration or when switching between reciprocating movements. The rollers should have made many contact with each other, but instead they are in contact with each other, so the relationship between the retainer and the inner man 2.
Ar! This method has the drawback that the A ratio shifts (migration), that is, the correlation between the machine and the optical elements shifts.

In order to solve this drawback, it has been proposed to install a moving rail between the machine stand and the optical element as shown in Figure 1.2.3, but it is not durable and generates noise, so it cannot be used smoothly at high speeds. It had the disadvantage that it could not be used for transportation.

In other words, the moving rail shown in Fig. 1.2.3 has both side edges 4a standing upward on the upper surface of a long outer jacket 1 with both side edges curved upward and curved side surfaces ja formed. As the steel balls 3 rise, elongated retainers 4 in which holding portions for steel balls 3 are formed are provided at predetermined intervals, and this retainer 4 is movable in the longitudinal direction of the outer members-1 by one ball 3. ing. Further, the central portion of the retainer 4 in the longitudinal direction stands up upward and is spaced 1 lll from the upper surface of the outer jacket 1, and notches 8 are formed at both longitudinal ends of this standing central portion. A belt support member 6 is disposed in each of the notches 8. Also, is there an inner layer located on the top of the retainer 4? -2 has both side edges bent inward and hanging down to form a curved side surface 2ai, and this inner menno? −
The outer periphery of both curved sides 1. The ball 3 is in contact with the inner circumferential surface of the ball 3, which is in contact with the ball 3. A belt 5 having a loop shape in the longitudinal direction is provided at the upright central portion of the retainer 4, and belt holders provided at both ends of the central portion are provided in contact with members 6. bl. That is, a loop-shaped belt 5 is located between the terminus 1 and the retainer 4, and the other part is located between the retainer 4.
Both belt supports are located between the inner member 2 and the inner member 2 and are provided in the l1lii end notch 8 in the upright central portion of the retainer 4, and are disposed in contact with the member 6.

A part of the belt 5 is attached to the outer men/? by the fixing member 7 (4). -1 is fixed on the top surface of the
The other is Jg.The center portion divided into two equal parts is connected to the lower surface of the inner member 2.

In the illustrated example, an opening 9 is provided in the center of the inner member 2, and a strip 10 is attached to the lower surface of the inner member 2 so as to face the opening 9. , and the part of the belt 50 located on the lower surface of the strip 10 is in contact with the upper surface of the strip 10, that is, the strip 10 located within the opening 9 is sewn (belt) 5
Then, the strip 10 and the two halves of the belt 5 are attached using the belt fixing member 7.

In the moving rail configured as above, the outer menno? - When moving the optical element relative to the machine by attaching it to either part of the 1ft machine or the optical element, or to the other of the machine or the optical element, especially during sudden acceleration. When switching between reciprocating motions, the belt 5 forcibly causes the belt receiver member 6, that is, the retainer 4, to follow the moving direction.

That is, in FIG. 1, the outer member 1 is fixed to the metal mount, the inner member 2 is fixed to the optical element,
If this optical element all moves from the right to the left, the inner member-2 will move as the optical element moves,
In addition, the belt 5 fixed by the fixing member 7 also moves together. On the other hand, since the other parts of the belt 5 are also fixed to the outer members-1 by the belt fixing member 7, the belt holder 5 connects the retainer 4 via the member 6 to the inner member/z-2. Since the retainer pulls at half the speed in the same direction as the moving direction, the retainer 4 will not move even if the optical element, that is, the sudden addition or insertion of the inner man 2-2 occurs when switching between reciprocating motions. Follow and therefore IJ
The relationship between the retainer and inner men as described in ij.FJI
It is possible to prevent the II4 section from shifting (migration).

However, in the above structure, the belt 5 and the belt holder that contacts the belt 5 and applies a force to the retainer 4 to cause it to follow the inner men 2 are not in contact with the member 6. When the optical element, that is, the inner member 2, is moved by contact, especially at high speeds, wear occurs, resulting in poor durability and a squealing sound. This has the disadvantage that the optical element cannot be moved smoothly and stably in the metal chain.

[Purpose of the invention]

This invention overcomes the above-mentioned five drawbacks of the conventional products, and can move smoothly and stably even when used under high-speed conditions, and has good durability without the risk of deterioration due to wear. To provide a copying device capable of preventing the occurrence of a buzzing sound. purpose.

[Structure of the invention]

In the present invention, an optical element such as a mirror or a loading stand that moves with respect to the machine base is disposed between the machine base and the machine base via a moving rail, and the moving rail is connected to the outer wear mark. ,
An inner member that is provided on the outer member via a retainer and a sphere held by the retainer and that is movable along the direction of the technique of the outer member, and the inner member. As it moves around the retainer in the direction of movement, one part goes to the outer member and the other part goes to the inner member. - strips fixed to the retainer, respectively; furthermore, the retainer has, at both ends thereof, rotary members each having a rotary member that comes into contact with the strips.

[Embodiments of the invention]

Embodiments of the invention shown in the drawings will be described below.

FIG. 4 shows how a group of mirrors, which are optical elements, are installed.A pair of mirror mounting stands 36.36 are positioned facing each other, and each mirror mounting stand 36.
Driven rollers 37 and 37 are attached to one end of the drive roller 36, and the driven rollers 37 and 37 can each roll on a driven rail 38 attached to a machine base (not shown).

The other end of the mirror mounting bases 36, 36 is parallel to the driven rail 38, and the outer mennow 21.2 described later is parallel to the driven rail 38.
Machines are stacked with one comrade in contact with each other (not shown)
It is attached to the inner members 22, 22 of a pair of moving rails 41, 41 attached to the. Mirrors 39 and 39 are attached to the mirror mounting tables 36 and 36 at predetermined inclination angles, respectively, and one mirror a mounting table 36 and the other mirror mounting table 36 are connected to each other by a continuous strip (
The middle part of the wire 40 is routed by a known drive source so that both mirror mounts 36.3s are moved horizontally at a speed ratio of 2:1.

Figures 5 and 6 show the mirror f# and the moving rail 41 that fully supports the other ends of the mounts 36 and 36, with both side edges curved upward to form a curved side surface 21m. Both side edges 24 are placed on the top surface of the long outer jacket 21.
A stands up upward, and a long retainer 24 is provided at a predetermined interval t, in which a holding portion for S1 balls 23, which are spherical bodies, is formed. It is possible to move in 21 skill directions. Further, the center portion of the retainer 24 in the longitudinal direction stands up upward and is spaced apart from the upper surface of the outer jacket Z-21, and shaft holding plates 25 are attached to both ends of the center portion in the longitudinal direction. It is being

Both sides of the shaft holding plate 25 are upright, and a cutout 26 is formed in the center, and a belt support roller 27 is rotatably provided in the cutout 26.

That is, the 1J128 attached to the shaft holding plate 25 with the notch 26't'' crossed the notch 26't''.
A rotary member 027 is rotatably attached thereto.

In addition, the inner member 22 located at the upper part of the retainer 24 has both side edges curved inward and hangs down to form a curved side surface 22m. It is held by the retainer 24, and its outer periphery is in contact with the inner peripheral surface of the a-ball 23, which is in contact with the grooved side surfaces 21m of the outer mennow 210.

A loop-shaped bell 29 is placed in the longitudinally rising center of the retainer 24 in contact with both floats 27 rotatably provided on shaft holding plates 25 provided at both ends of the retainer 240. It is provided.

That is, a loop-shaped bell) 29 has a portion located between the outer member 21 and the retainer 24, and the other portion located between the retainer 24 and the inner member 22, and has both ends of the retainer 24. shaft holding plate 25
2027.

Then, when a part of the belt 29 is fixed to the upper surface of the outerwear member 21 by a belt fixing member (not shown) in the same manner as shown in the conventional example described above, the other part is fixed to the upper surface of the outerwear member 21. The equally divided central portion is fixed to the inner men A-22.

As described above, the moving rail 41 of I# is attached to the machine base in a state in which the outer members 21 are in contact with each other, and the inner members 22 of #41 are attached to one side. The other end of the mirror mounting table 36 is attached to the inner member A-22 of the other moving rail 41, and the other end of the other mirror mounting table 36 is attached to the inner member A-22 of the other moving rail 41. One end of it is driven
37, 37 via a driven rail 38, and the other end is a moving rail 41. ．． 4t, and are arranged horizontally movably.

Next, the operation of the above-mentioned one will be explained.

First, the known drive FAt-actuates the strip (wire) 40.
When both mirror mounting stands 36.36 are moved by 'g', the inner members 22, 22 of the moving rails 41.41 supporting both mirror mounting stands 36.36Q also move together, A bell 29, which is partially fixed to the inner member 2-22 by a belt fixing member, also moves together. In this case, the inner members of the belt 29 - half the length from the fixed part of the belt 22 are the outer members.
21, the belt 29 connects the retainer 24 via the stomach 27 to the inner men/? Since it is pulled in the same direction as the moving direction of the inner members 22 and at approximately half the speed, the retainer 24 follows even when the inner members 22 suddenly accelerate or change reciprocating motion for a certain time. The relationship between the retainer 24 and the inner retainer 22 does not deviate, and migration does not occur.

Also, when the retainer 24 is moved, the belt 29 and the rollers 27 that apply force to the retainer 24 to follow the inner retainer 22 have multiple contacts, so the mirror mounting table 36°36 is Even when moving at high speed, the Inner Menose-22 can be moved smoothly and stably.
It has good durability with no risk of wear, and since it is a rolling contact, it does not generate noise.

Figures 7 and 8 show modified examples of the moving rail 41, and the one shown here differs from the one shown in No. 5.6v4 only in the belt and 0, but the other members are the same. The same numbers as in the above example are given and the explanation is omitted.In other words, in this modification, a wire aoft was provided in the place of the pet 29), and a wire zoly 31 was provided in the place of the flow 27. It is something.

And even what is shown here is inner member 22.
There is no fear that the wire 30 and the wire zori 31 will be worn out during movement, and the durability is good, and since the rollers are in multiple contact, no noise is generated.

In the above embodiments, an optical system moving type copying apparatus was described in which a mirror mounting table on which a mirror, which is an optical element, is placed reciprocally moves; however, the present invention is not limited to this; The Haragiridai Move 2i moves back and forth! Of course, a 17-inch copying machine may also be used.

〔Effect of the invention〕

By borrowing the invention as described above, it is possible to move optical elements such as a mirror or a document table at high speed, smoothly and stably, so that a large number of copies can be made at high speed, and there is no wear and tear. Since there are no exposed parts, it has good durability and also has excellent effects such as not producing any noise.

[Brief explanation of drawings]

Figure 1 is a plan view showing a conventionally used moving rail;
The figure is a partially vertical schematic front view, Fig. 3 is a view taken along the line G in Fig. 1, Fig. 4 is a schematic perspective view showing the installation state of a group of optical elements, and Fig. 5 is Fig. 4 is a diagram showing the main parts of the moving rail used in FIG. 8 is a sectional view of the one shown in FIG. 1.21...Outer ball 2,22...Inner ball 3.23...M ball 4.24...Retainer 5.29
... Bell) 6--Belt holder is member 7... Silt fixing member 8, 26-Notch part 9-Sekiguchi part 10...
Strip 25 - Shaft holding plate 27 ... Belt holder is roller 28 -
-Axis 3o...Wire 31--1 Fire pulley 36...Mirror @ stand 37
-- Driven roller 38 - Driven rail 39 -- Mirror 4o... Strip 41 --- Moving rail

Claims (1)

[Claims] 1. An optical element such as a mirror or a document table that moves relative to the machine base is disposed between the machine base and the machine base via a moving rail, and the moving rail is connected to an outer member and a retainer to the outer member. and an inner member provided via a sphere held by the retainer and movable along the longitudinal direction of the outer member;
A part of the retainer is fixed to the outer member/ζ-, and another part of the retainer is fixed to the inner member, and each of the retainer has rotating members at both ends thereof that come into contact with the strip. A copying device characterized by: