JPS623802Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a slide device for a document moving table of a copying machine, which is used in a copying machine such as an electrostatic copying machine and moves a document for image scanning. Conventionally, in a copying machine in which a copy document is placed on a movable table and the movable table is slid horizontally to scan the image, a part of the slide device is exposed due to the movement of the movable table. Dirt or dust may get inside the slide device and obstruct its movement, or the exposed stopper protrusion that restricts the movement range may accidentally injure your fingertips. There was a risk of pinching one's fingertips. The present invention is intended to eliminate the above-mentioned drawbacks, and aims to provide a slide device for an original moving table that is simple in structure and inexpensive.

Hereinafter, the present invention will be explained based on the drawings.

A is a document placement plate made of a rectangular glass plate, C
1 is a cover provided on the upper part of the mounting plate A, 1 is a document moving table that holds the placing plate A, (hereinafter simply referred to as the moving table) 2 is a slide provided on the bottom surface of the end of the moving table 1. The device 3 is a support plate for fixing the slide device 2. The slide device 2 includes an outer member 4 that is fixed to the lower surface of the movable base 1 and moves together with the movable base 1, and an inner member 5 that is fixed to the support plate 3 and into which the outer member 4 is inserted.
The ball retainer 6 is fitted between an outer member 4 and an inner member 5. The outer member 4 has ball guide grooves 41, 4 in the longitudinal direction of the inner surface formed by curving the front and rear ends of a band-shaped metal plate into an inward arc shape or a V shape.
1, the front and rear bent edges 42, 42 and the substrate 43 form a downward substantially C-shaped cross section. and,
A portion of the left and right ends of the base plate 43 of the outer member 4 is cut inward to form the retainer front and rear stoppers 4.
4, 45 are formed, and movable table mounting holes 46 are provided at a predetermined number of positions in the left and right direction of the substrate 43, and mounting nuts 47 are fixed to the inner surfaces of the mounting holes 46. The inner member 5 is approximately the same length as the outer member 4, is made of a band-shaped metal plate, is large enough to allow the outer member 4 to be inserted into the outer member 4, and has its front and rear ends curved outward in an arc shape or a V shape. Ball guide grooves 51, 51 are formed in the longitudinal direction of the outer surface.
The front and rear bent edges 52, 52 and the substrate 53 form an upwardly C-shaped cross section. Then, the left side of the substrate 53 of the inner member 5 is
A retainer stopper 54 is cut and raised toward the outer member 4 side in a shape of a letter, and a retainer stopper 54 protrudes toward the outer member 4 side, and mounting holes 55 for the support base 3 are provided at a predetermined number of positions in the left and right direction of the board 53. A finger jam prevention member 7 is attached to the ball retainer 6 side of the retainer stopper 54. The finger jam prevention member 7 has an upper end surface 71 formed slightly lower than the upper end 541 of the retainer stopper 54, and includes an arc-shaped guide slope 72 that descends from the upper end surface 71 toward the ball retainer 6 side, and the retainer stopper 54. It consists of a fitting protrusion 74 that fits into a cutout hole 542 formed when cutting and raising the
It is made of synthetic resin and has the same front and rear width as the width between the front and rear bent edges 52, 52 of the inner member 5.
The ball retainer 6 is a band-shaped metal plate, has a size that can be inserted between the members 4 and 5, and is about half the length of the members 4 and 5. Balls 63 are rotatably held at several locations in the longitudinal direction of the front and rear bent pieces 62, 62 whose front and rear ends are bent downward. In the drawing, the ball retainer 6 has a shape in which the front and rear bent pieces 62, 62 are connected to the left and right, but in order to reduce the weight, the parts other than the parts that hold the balls 63 are cut off. Good too. This slide device has the above-mentioned configuration, and the slide device 2 is configured with both members 4 and 5 and the ball retainer 6 inserted into each other, and the inner member 5 side of the slide device 2 is connected to the support plate 3.
Place the retainer stopper 54 side in the specified position.
It is placed facing outward, the outer member 4 is moved left and right, and the inner member 5 is fixed to the support plate 3 with bolts B. Next, the end of the movable table 1 is placed on the outer member 4, and the movable table 1 and the outer member 4 are fixed with bolts B from above. When copying a document, the movable table 1 configured as described above first moves inward of the support plate 3 to increase the moving distance, and then moves to the outside of the support plate 3 again from a predetermined position. move in the direction. At this time, along with the above movement, the outer member 4 also moves together with the moving base, and the ball retainer 6
When the outer member 4 moves half of the moving distance and moves to the maximum outward direction of the support plate 3, the left end of the ball retainer 6 hits the upper right surface of the retainer stopper 54 of the inner member 5. Then, the retainer rear stopper 45 of the outer member 4 comes into contact with the right end of the ball retainer 6, and the movable table 1 temporarily stops and moves inward of the support plate 3 again. If the number of copies is large, the above operation will be repeated, but the movable table 1
When the retainer stopper 5 attached to the inner member 5 moves inward to a predetermined position, the retainer stopper 5
4 is exposed. At this time, conventionally, if the user's fingertip or the like is accidentally placed on the base plate 53 of the inner member 5, the left end surface of the outer member 4 moving toward the outside of the support plate 3 and the retainer stopper 54 There was a risk of a serious accident occurring. In the present invention, the finger jam prevention member 7 having the guide slope 72 is attached to the ball retainer 6 side of the retainer stopper 54, so that when the user's fingertip comes into contact with the end of the outer member 4,
As the outer member 4 moves, it naturally moves upward along the slope 72 and escapes. Further, since the upper end surface 71 of the finger jam prevention member 7 is formed slightly lower than the retainer stopper 54,
The retainer stopper 54 is the ball retainer 6
Moreover, even if a fingertip or the like is placed on the upper surface of the retainer stopper 54, the upper end surface 71 of the finger jam prevention member 7 is close to the upper end surface 71 of the finger jam prevention member 7, so that the finger tip will not be injured. . In the present invention, the retainer stopper 54 is configured in the front and back direction of the base plate 53, but if a retainer stopper 54' is formed as shown in FIG. It is sufficient to add the member 7'. Furthermore, it goes without saying that the guide slopes 72 may be formed on both the left and right sides of the retainer stopper 54, and that a slide device may be attached as shown in FIG. Furthermore, in the present invention, since the outer member 4 is located on the moving table 1 side, it covers the ball retainer 6 and the inner member 5 from above, preventing dirt and dust from entering into the slide device 2. can be prevented.

As described above, the present invention has a simple structure consisting of an outer member, an inner member, and a ball retainer, and it is a practical and useful invention, as it can be used safely with the finger jam prevention member and can be manufactured at low cost. be.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is an exploded perspective view of the main parts of the invention, Fig. 2 is a vertical sectional view of the main parts, and Fig. 3
The figure is an enlarged perspective view of the main part, FIG. 4 is an enlarged exploded perspective view of the main part showing another embodiment, and FIG. 5 is a vertical sectional view of the main part showing another embodiment. 1... Document moving table, 2... Slide device, 3...
...Support plate, 4...Outer member, 42, 42
... Front and rear bent edges, 5 ... Inner member, 5
2, 52... Front and rear bent edges, 54... Retainer stopper, 6... Ball retainer, 7... Finger jam prevention member, 71... Upper end surface, 72... Guide inclined surface.

Claims (1)

[Scope of utility model registration request] In at least one slide device that guides both ends of a document moving table on which a document is placed, an inner member having an upwardly facing C-shaped cross section is fixed to a support plate, and a sliding table is attached to the inner member. It consists of an outer member having a downwardly facing C-shape in cross section, and a ball retainer that rotatably holds the ball between the bent edges of both members, and a retainer stopper that protrudes toward the outer member is formed on the base plate of the inner member, At least a finger jam prevention member having a guiding slope that slopes downward toward the ball retainer side and having an upper end surface slightly lower than the upper end of the retainer stopper is provided on the ball retainer side of the retainer stopper. A slide device in a document moving table of a copying machine, which is characterized by its advantages.