JPS63230426A - Paper feed device of mass capacity - Google Patents

Abstract

PURPOSE:To ensure the easy insertion coupling of a paper feed device to a copying machine proper by using a balancer support means capable of moving the paper feed device proper vertically via an artificial pressing force. CONSTITUTION:A paper feed device is roughly adjusted with a height adjustment mechanism 12 so that the paper feed connection port 1a of the paper feed device proper 1 will be slightly higher than the paper feed device connection part 'C' of a copying machine proper 'B'. Once the height of the device proper 1 has been set via the rough adjustment, it becomes possible to push down the device proper 1 easily via the simple application of a small pressure force 'W' thereto on the operation of a balancer 14. Therefore, the paper feed device can be insertion-coupled to the copying machine proper 'B' by forcing the device proper 1 to the side thereof, while the device proper 1 is being kept pressed down by a shift magnitude (h). Consequently, conventional fine adjustment work can be obviated.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) This invention relates to a floor-standing large-capacity paper feeder having a paper feed connection port for supplying copy paper to the main body of a copying machine. .

(Prior Art) Fig. 3 shows a conventional example in which a floor-standing large-capacity paper feeder is connected to the paper feeder connection part C of the main body B of a copying machine installed on a dedicated desk A. The floor-standing large-capacity paper feeder is fitted into a paper feeder main body 1 having a paper feed connection port 1a for supplying copy paper to a copying machine main body B so as to be movable up and down with respect to the main body base 2, and has a height scale. A caster support shaft 4 with a plurality of scales that can be coarsely adjusted in the height direction is tightened and fixed with a tightening screw 3 by aligning the 4a with the bottom surface of the base, and a fine adjustment nut 5 is screwed into the caster support shaft 4. The structure includes a plurality of casters 6 that are fixed by and can be finely adjusted in the height direction.

(Problems to be Solved by the Invention) However, in the conventional large-capacity paper feeder, the height H of the floor surface of the paper feeder connecting portion C of the copying machine body B is measured, and this height H and the paper feeder are The height of the paper device main body 1 is adjusted (coarse adjustment) using the caster support shaft 4 so that the height of the paper feed connection port 1a of the paper device main body 1 is the same, and then the paper device is inserted and connected to the copying machine main body B. After inserting the paper feed connection port 1a, further move the caster 6 up and down using the fine adjustment nut 5, so that the paper feed connection port 1a is pressed against the paper feed device connection portion C of the copying machine main body B. There is a problem in that the height needs to be finely adjusted, and this fine adjustment work is extremely troublesome.

This invention was made based on the above circumstances,
The purpose is to provide a large-capacity 18-set device that can be easily inserted and connected to the main body of a copying machine by only making rough adjustments in the height direction, and does not require fine adjustments as in the prior art.

[Structure of the invention]

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention provides a mounting base on the base that is coarsely adjusted in the height direction by a height adjustment mechanism, and A main body of the paper feeding device is supported, which is movable in the vertical direction relative to the mounting base, and as a support means for the main body of the device, the total weight of the main body of the device, including the paper weight, is supported, and a fixed artificial pressure is applied. It is characterized by using a balancer such as a gas spring having a spring constant that can be easily moved up and down.

(Function) The height setting (coarse adjustment) of the paper feeder main body corresponding to the copying machine main body is performed by the height adjustment mechanism, but after this rough adjustment is performed, the balancer (spring load is The main body of the paper feeder can be moved up and down with a small amount of artificial pressure. Therefore, the paper feeding device can be easily inserted and connected to the main body of the copying machine without making complicated fine adjustments as in the conventional case.

(Embodiment) Hereinafter, an embodiment of the present invention will be described with reference to the drawing in FIG.
The base 11 is a floor-standing type having a paper feed connection port 1a inserted into the paper feed device connection part C (the type installed on the top is shown), and has a base 11 on which a plurality of casters 10 are attached. A mount 13 that can be coarsely adjusted in the height direction is supported on the base 11 via a height adjustment mechanism 12, and a mount 13 is supported on the mount 13 via a plurality of balancers 14 as supporting means. The sheet feeder main body 1 is configured to include the mounting base 13 and a paper feeder main body 1 that is relatively movable in the vertical direction.

The balancer 14 as a support means for the apparatus main body 1 is a gas spring or a gas spring having a spring constant that supports the wheel load (up to) including the paper weight of the apparatus main body 1 and can be easily moved up and down by a certain artificial pressure. A spring balancer, in which a lower end of the balancer main body is pivoted to a fixed bracket 15 of the mounting base 13, and an upper end of the movable shaft of the balancer main body is pivoted to a fixed bracket 16 of the paper feeder 5-main body 1. installed. The height adjustment mechanism 12 that roughly adjusts the main body mounting base 13 in the height direction has a height scale 17 erected on the base 11.
The mounting base 13, which is vertically movably fitted into the plurality of support members 18 having a structure, is fastened with a tightening screw 19 at an arbitrary height adjustment position.

It has a fixed structure, and the tightening screw 19 is screwed into the column fitting socket 20 of the mounting base 13 so that the tightening operation can be performed.

The paper feed device configured in this way has a height that is higher than the height of the paper feed device connection portion C of the copying machine main body B.
Rough adjustment is performed by the height adjustment mechanism 12 so that the height of a becomes slightly higher (as shown by the imaginary line in FIG. 1). After the height of the device main body 1 is set by this rough adjustment, the device main body 1 can be easily pushed down by applying a slight pressing force W to the device main body 1 by the action of the balancer 14. By pushing the main body 1 down to the moving amount shown in Fig. 1 and pushing it toward the copying machine main body B side, it is possible to insert and connect the paper feeder to the copying machine main body B, and fine adjustment as in the conventional method is possible. becomes unnecessary.

In other words, the balancer 14 maintains the spring load P within the load range pa shown in FIG. Since it has the characteristic that it does not change much,
The device main body 1 can be easily pushed down with a small pressure W, and the pressure contact force due to the spring load P of the paper feed connection port 1a after insertion into the copying machine main body B does not change much and is within the allowable range (5 kg / d ~ It has the effect of not being affected by the amount of paper, and eliminates the need for fine adjustment as in the conventional case, making it easier to adjust the paper feeder to the main body B of the copying machine. Insertion connections can be easily made.

〔Effect of the invention〕

Since the large-capacity paper feeder of the present invention uses the above-mentioned balancer as a support means for the main body of the paper feeder,
After setting the height of the paper feeder main body relative to the copying machine main body using the height adjustment mechanism, the paper feeder main body can be moved up and down with a slight human pressure by the action of the balancer. Therefore, there is no need for complicated fine adjustments as in the prior art, and the paper feeding device can be easily inserted and connected to the main body of the copying machine.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram with an enlarged view of the main parts showing a large-capacity paper feeder according to an embodiment of the present invention in a state where it is inserted and connected to the main body of a copying machine, and FIG. 2 is a diagram showing a balancer supporting the main body of the paper feeder. FIG. 3 is a conventional explanatory diagram showing a conventional large-capacity paper feeding device inserted and connected to the main body of a copying machine. 1...Paper feeder main body, 1a...Paper feed connection port, A...
・Dedicated desk, B...copying machine body, C...paper feeder connection section, 10...casters, 11...base, 1
2... Height adjustment mechanism, 13... Mounting stand, 14...
Balancer (gas spring or spring balancer)
, 17... Height scale, 18... Support member, 19...
・Tightening screw, 20... Prop fitting socket.

Claims (3)

[Claims] (1) A large-capacity paper feeding device that supplies copy paper to the main body of a copying machine, in which a mount is provided on the base and is roughly adjusted in the height direction by a height adjustment mechanism, and the mount is mounted on the mount. It supports a main body of the paper feeding device that is movable vertically relative to the base, and as a support means for the main body of the device, it supports the total weight of the main body of the device, including the paper weight, and can be easily moved up and down by a certain artificial pressure. A large-capacity paper feeding device characterized by using a balancer having a movable spring constant. (2) The large-capacity paper feeding device according to claim 1, wherein the balancer is a gas spring or a spring balancer. (3) A height adjustment mechanism that coarsely adjusts the main body mounting base in the height direction is fitted into a plurality of strut members having height scales set up on the base so as to be able to move up and down. The large-capacity paper feeding device according to claim 1, characterized in that the mounting base is structured to be fixed at an arbitrary height adjustment position.