JPS5823077A - Cleaning brush assembly - Google Patents

Abstract

PURPOSE:To facilitate the quipment of a brush body by allowing the maintenance operation surface side plate of an assembly to be attached and detached freely, providing a rubber band around a brush rotating shaft which projects to the internal surface of the opposite-side side plate, and fitting a tapered annular spring to the internal surface of the maintenance operation surface side plate. CONSTITUTION:Prior to operation, a maintenance operation side plate 2 is detached firstly and the hollow core of a brush body is inserted loosely into a guide shaft 5 and further intruded as it is to abut on a rubber band 7. Then, the side plate 2 is fixed with a screw to intrude an annular spring 8 to the opposite end of the hollow core, and consequently the expanded part of the spring 8 comes into excellent tight contact with the internal surface of the hollow core; and the side plate 2 is further clamped to the enclosure to press the hollow core to left with a spring 9, and consequently the rubber band 7 and hollow core circumferential edge are brought into press contact with each other, thus completing brush equipping operation.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention facilitates attachment of a brush main body to a brush assembly for brush cleaning of a drum of a copying machine.

What about the brush itself? - Hair is planted around a hollow cylinder such as paper, but when it is attached to a cleaning housing, the protrusion of the rotating shaft that protrudes from the inside of the housing is inserted into the notch provided at the edge of the hollow cylinder. It was fitted. However, since this fitting is done on the back side of the brush housing opposite to the maintenance work surface, the brush mounting work is not easy.

Therefore, the present invention eliminates this fitting on the back side, and only presses the circumferential end of the hollow core through the rotating shaft [-/mole. Furthermore■
When one side of the work surface is attached to the housing, this pressure contact is maintained and the shaft of the hollow core is held.
Various types of springs are provided.

To explain the embodiments with reference to the drawings, Fig. 7 is a front view of the brush assembly, with the brush main body removed, and Fig. 1 is a cross section taken along the line B-B in Fig. 1, with the brush attached. With the core? -Made of paper with long diameter S
The length is about O■ length + 100n. In Figure 7, 2
8 is the side plate on the work surface of the brush housing, 8 is the back side plate, and side plate 2
is removable and is screwed to the housing. The drive of the brush rotation motor 4 is divided into one brush rotation shaft in the figure, which projects inward from the side plate 8. This shaft 6 is stepped and has a tip 5.
Protrude long and thin to serve as a guide when inserting the hollow core of the brush on the left side. A rubber ring (F) is fitted around the stepped portion of the shaft 6, and the peripheral edge of the brush hollow core is placed on this.

On the other hand, the maintenance work side plate 2 is provided with a member on the axis of the rotating shaft 6 that receives the opposite peripheral edge of the hollow core and is crimped to the left in the figure. A support shaft 6' is also installed on the inner surface of the side plate 2, and a steel plate is attached to the inner tip of the shaft 6'. A coil spring 9 is provided around the periphery of the support shaft 6' to make the spring device elastically resilient against the side plate 2.

To carry out maintenance work, remove the maintenance work side plate 2, loosely insert the hollow core of the brush body into the guide shaft, and push the brush body further until it hits the rubber ring 7, but this work is very easy. Next, when the 'ia plate 2 is screwed, the annular spring 8 is inserted into the opposite end of the hollow core, and the spring 8 is inserted into the opposite end of the hollow core.
The expanded diameter portion of the rubber ring 7 is brought into close contact with the inner surface of the hollow core, and by plating the plate 2 on the housing, the hollow core is pushed to the left by the spring 9, and the rubber ring 7 and the periphery of the hollow core are pressed together. In this way, the brush mounting operation becomes very easy.

[Brief explanation of the drawing]

FIG. 7 is a front view of the brush assembly with the brush removed, and FIG. 1 is a sectional view taken along line BB in FIG. 1. l...Brush hollow core 2...Maintenance work side plate 4...Motor 6...Brush rotation shaft?・・・・・・・・・Rubber ring 8・・・・・・Annular S f IJ song・・・・
・・・・ Coil fling 6′ ・・・・・・Spin shaft

Claims (1)

[Claims] In a cleaning brush assembly for a copying machine drum, a maintenance work surface side plate is removably attached in the side of the assembly housing,
A rubber ring is fitted to the brush rotation shaft protruding from the inner surface of the side plate on the opposite side so as to abut against the circumferential edge of the hollow core of the brush body, while a support shaft is installed on the inner surface of the maintenance work surface side plate in alignment with the axis of the rotation shaft. A tapered annular spring is attached to the inner tip of the support shaft to press the inner circumference of the hollow core when it is inserted, and a coil spring is provided between the annular spring and the inner surface of the maintenance work side. A cleaning brush assembly for a copying machine drum, which is characterized by: