JPS5814865A - Toner cartridge for developing device of electronic copier - Google Patents

Abstract

PURPOSE:To easily peel off a seal, by forming a shape of both ends in the lengthwise direction of an adhesion surface of an edge part to which the seal is stuck, to a V-shape projecting to the lengthwise direction side, so as to minimize the peel-off force in both end parts in the peel-off direction. CONSTITUTION:As for a vessel 1 of a toner cartridge for a developing device, which stores a toner, and seals and encloses its opening part with a seal 2, an adhesion surface 1b of an edge part 1a in both ends in the lengthwise direction is formed in a V-shape projecting in the lengthwise direction, therefore, peel-off force in case of peeling off the seal 2 becomes almost same in both end parts in the peel-off direction, and in other part being near the center, and especially, in its tip part, the seal 2 can be peeled off by small force, therefore, the seal 2 can be peeled off easily.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a toner cartridge for a developing machine, and more particularly to a toner cartridge that is inserted into a toner supply device of a developing machine of an electronic copying machine and whose opening is sealed with a seal.

This type of cartridge is shown in Fig. 1, and has a container α that is elongated and has an opening extending over the entire length of the metal on one side of the cross-sectional shape, and an adhesive surface of the edge of the opening. The entire surface is made up of a seal C that encloses and seals the fixing toner, but since the shape of the adhesive surface on the edge of the opening of the conventional container α is rectangular, when the seal C is peeled off in the longitudinal direction. , this pulling force is due to the fact that the adhesive area per unit length in the peeling direction at both ends in the force direction is larger than other parts, so this peeling force is greater than other parts as shown in Figure 2. The size of the seal C is several times larger than that of the previous one, and there was a problem that it was difficult to peel off the seal. An object of the present invention is to provide a toner cartridge for use in a developing machine in an electronic copying machine, in which a sticker can be easily peeled off.

Embodiments of the present invention will be described below with reference to FIG.

In the figure, 1 is a container that is formed into an elongated shape and has an opening along the entire length in the longitudinal direction on the negative side of the cross-sectional shape, and 2 is a container that is attached with adhesive to the entire surface of the adhesive surface 1h provided at the edge of the opening of this container 1. This is a seal that seals the toner inside. The adhesive surface 1h of the edge 1α of the container 1 is at both ends of the container 1,
It is formed into a mountain shape that protrudes laterally in the longitudinal direction. In the example shown in FIG. 3, the adhesive surface 1h is made into a chevron shape by forming the edge Iaf into a chevron shape, and in the example shown in FIG. It is made into a mountain shape.

Since the present invention is as described above, the adhesive area per unit length in the peeling direction at both ends of the seal 2 in the peeling direction (longitudinal direction of the container 1) is reduced.

Therefore, when peeling off the seal 2, the peeling force at both ends in the peeling direction is almost the same as at other parts, and especially at the tip of the peeling edge, the seal 2 can be peeled off with only a slight force. This makes it possible to peel off the seal 2 extremely easily.

(3) In the embodiment shown in Fig. 3, the cross-sectional shape of the container I was made into a chevron-shaped end to match the shape of the edge. In addition, other parts of the container 1 may be rectangular as in the conventional case.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional toner cartridge for a developing machine.
FIG. 2 is a diagram showing the relationship between the seal adhesive surface shape and the seal peeling force in a conventional example, and FIGS. 3 and 4 are perspective views showing an embodiment of a toner cartridge for a developing machine according to the present invention. . 1 is the container, 1α is the edge, 1h is the adhesive surface, and 2 is the seal. Applicant Fuji Xerox Co., Ltd. Representative Patent Attorney Masaaki Yonehara Patent Attorney Tadashi Hamamoto (4) E Figure

Claims (1)

[Claims] A toner for a developing machine in an electronic copying machine, comprising a container 1 that is elongated and has one side of its cross-sectional shape opened over the entire length in the longitudinal direction, and a seal 2 with 9 attached to the entire edge 1α of the opening of the container 1. A toner cartridge for a developing machine in an electronic copying machine, characterized in that both longitudinal ends of the adhesive surface 1b of the edge 1a to which the seal 2 is attached are formed into a mountain shape projecting laterally in the longitudinal direction. .