JPS58194274A - Lamp holding mechanism for copying machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Regarding the side.

Copying machines use various types of lamps, including non-light lamps, and elongated lamps whose lengths correspond to the width of the document or the width of the photoreceptor are used.

These lamps require careful handling when they are replaced due to failure or deterioration over time, making the replacement work complicated. For example, when replacing an exposure lamp, it is necessary to complete the replacement work outside the 96 copying machine after removing the exposure unit, which has the entire optical system as a unit, from the copying machine, and then reinstalling the exposure unit into the copying machine. It was. In another noodle copying machine, when supplying current to the lamp, the input terminal member holding the loquat 1 lamp was removed, and then the lamp was removed, but in this case, not only was it troublesome to remove the rung, but the When installing a lamp, the rung position often shifts, which has the disadvantage that uniformity of illumination cannot be guaranteed.Therefore, an object of the present invention is to facilitate the replacement of copying machine lamps. K provides a rung holding mechanism that makes the mounting position of the lamp appropriate after replacement.

To achieve this object, the present invention provides a holding mechanism for an elongated copying machine lamp in which both ends are held in contact with each other by terminal members, thereby enabling electricity to flow, in which at least seven terminal members are made of an elastic conductive material. As a result, a hollow guide member is provided in the portion of one terminal member that presses against the end of the rung, and the hole in this guide member has an entrance portion that is in contact with the lamp. There is provided a lamp holding mechanism characterized in that the lamp holding mechanism is larger than the diameter of the lamp holding mechanism and is formed so as to gradually become narrower toward the back where the pressure contact portion of the terminal member extends. Accordingly, when removing the lamp, by pulling the seven terminal members in the opposite direction to the press-contact direction, the lamp is released from being held, and the lamp can be taken out from the copying machine. Also, when installing a new lamp, gradually insert one end of the lamp from the entrance of the hollow hole of the guide member, so that one end of the lamp comes into contact with the seven terminal members from K, and in this state, the lamp The simple operation of holding and press-fitting the ends with the terminal member is sufficient. During installation, the position of the terminal member does not change, thus ensuring that the rung position is in its proper position during manufacturing and assembly.

Embodiments of the present invention will be described below with reference to the drawings. Although the copying machine 1 shown in FIG. 1 is a small-sized copying machine of a moving original type, the copying machine according to the present invention is not limited to such a copying machine, and is only selected for convenience of explanation.

In this copy *I, Ks! on the moving platen 2! An exposure unit 5 including an exposure rung 3 and a lens group 4 for illuminating a placed original is provided, and projects an optical image of the original onto a photoreceptor 6 to form electrostatic latent scratches on the surface of the photoreceptor 6. Run f3 is an elongated glass tube that can irradiate light over its length according to the width of the original or the width of photoreceptor 6, and its removal and addition must be done with care. This is troublesome, and furthermore, misalignment during installation causes uneven illumination, which deteriorates the quality of copied images. The present invention solves these problems. Hereinafter, the present invention will be described in detail using the exposure lamp 3 as a representative, but the present invention can be similarly applied to other rungs.

Figures 2-S illustrate a rung retention mechanism according to the present invention. In FIG. 1, each end 11, 11 of the rung 3 is held in pressure contact with a bent tip 13.13 of a particle member 12.12 of a conductive material, preferably metal, and the rear end 14 of the terminal member 12 is is connected to a cable (not shown) to supply current to the lamp 3.

Each terminal member 12 is secured to a respective electrically insulating mounting member 15, which in turn is secured to a copier frame (not shown) by screws 16 or the like. The terminal member 12 is slightly elongated between the distal end portion 13 and the attachment member 15, and elasticity is imparted to this portion. For this reason, the metal terminal 12 is preferably made of an elastic material.

One of the terminal members 12 K, which presses and holds the end 11 of the run f3, has a hollow guide member 17 at the tip 13 that presses against the end of the lamp. The hollow hole 18 of this guide member 17 is wide open at its entrance portion 19, and the terminal 12
The bent end 13 of the hole gradually becomes narrower toward the inner part 20 which extends into the hole. In the drawing, the entrance of the hollow hole 180 is formed wide for convenience of illustration, but it may be made narrower as long as it is larger than the diameter of the lamp so that the lamp 3 can be inserted therein. This guide member 17 has a flange 21 formed on its side, and this flange 21 is fixed to a frame 22 of the copying machine, etc., and the entrance portion 19 of the hole of the guide member 17 is connected to a reflector 21 provided around the lamp. (See also Figure 1). The guide member 17 is made of an insulating material such as synthetic resin, and is connected to the terminal member 1.
2 and the frame 22 are electrically insulated.

It is preferable that a handle portion 24 is provided near the tip portion 130 of the terminal member 12 that presses and supports the end of the rung 3 on the side opposite to the guide member 17. This handle part 24 is shown in Fig. 3 (
(Hatake) and (b) show the details. The handle portion 24 is for bending the terminal member 12 as shown by the curved line in FIG. 3, and if it can be bent, the handle portion 24
It is not necessary.

By configuring the lamp holding mechanism as described above, removal and installation of the lamp 3 becomes very easy. When removing the lander 3, as shown in FIG. 2, by holding the handle 24 and bending the terminal member 12 in the direction of the arrow, the leading end 13 of the lander 3 is no longer held and can be easily removed. In this case, in the copying machine shown in FIG. 7, the number can be increased from above. Next, when installing a new lamp, first push one end of the lamp inward from the entrance part 19 of the hollow hole 18 of the guide member 17, and then the tip part 13 of the terminal member 12 extending to the back 20 as it is. connected to
In this state, hold the handle portion 24 of the other terminal member 12 and bend it once to press the tip portion 13 against the end of the rande 3 to easily reinstall the rung. Another mounting method is to press the end 11 of the lamp 3 against the tip 13 of the terminal member 12 provided with the handle 24, and then attach the other lamp end 11 to the guide member 17, as shown in FIG. Another method is to insert it into a hollow hole.

The above-mentioned lamp holding mechanism according to the present invention makes it very easy to remove and install the lamp.

If the lamp is used in a copying machine as shown in FIG.
By providing the terminal member 12 with the first guide member 17 on the back side, there is an advantage that workers such as maintenance personnel can attach and remove the lamp only from the front side of the copying machine. Furthermore, since the terminal member 12 is fixed to the 14 machines, even if the lamp is removed and a new lamp is installed, the terminal position will not change, and the terminal member 12 will be placed at the appropriate position adjusted at the time of manufacture. is guaranteed, and the problem of uneven illumination associated with lamp replacement work is also eliminated.

In the above embodiment, the guide member and the terminal member attached to the guide member are illustrated as separate members, but they may be formed as one piece. In this case,
The terminal member on the guide member side does not need to have elasticity, and the elasticity of the other terminal member can provide pressure contact and holding.

[Brief explanation of drawings]

1 is a schematic front view of the seven copying machines; 2nd M is a perspective view of the lamp holding mechanism according to the present invention; FIG. 3 is a perspective view of the lamp holding mechanism of the 41F barrel according to the present invention; ■−
Section V taken along the mV line and FIGS. S (a) and (b) are a front view and a plan view of a terminal member having a handle. 1... Copy machine, 2... Graten,
3... Light lamp, 6... Photoreceptor,
11... End of run l, 12...
・Terminal member, 13...Terminal member tip, 1
5...Mounting member, 17...Guiding member, 18...Hollow hole, 19...Inlet part, 21...Guiding member 7 lunges, 22
...Frame, 23...Reflector,
24... Handle part. 3

Claims (1)

[Claims] In a holding mechanism for an elongated copying machine armor lamp whose ends are held in contact with each other by terminal members, thereby enabling electricity to flow,
At least seven terminal members are made of an elastic conductive material and are adapted to press against both ends of the lamp, and a hollow guide member is provided in a portion of one terminal member that presses against the end of the front ITF lamp; The hole of this guide member is formed so that the entrance part is thicker than the diameter of the rung (and gradually narrows toward the back where the press-contacting part of the terminal member extends). mechanism.