JPH0575768U - Toner supply device for dry copier - Google Patents

Abstract

(57) [Abstract] [Purpose] To securely attach and fix the drive receiving member to the toner storage container and to enable processing in a continuous process, and to attach and remove the toner storage container to and from the dry copying machine securely. The present invention provides a toner replenishing device for a dry copying machine, which enables low cost and is excellent in productivity. A cylindrical toner storage container 4 having a spiral guide portion 3 on its inner surface, and a drive receiving member for rotating the toner storage container 4 are provided at least, and the toner storage container and the drive receiving member are provided. It is characterized by being integrally molded.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a toner replenishing device mounted in a dry copying machine.

[0002]

[Prior Art]

 As a toner replenishing device for a dry copying machine, as shown in FIGS. 3 and 4, a toner storage container 4 and a rotation driving means 5 such as a gear are separately machined and engaged with each other. As disclosed in Japanese Patent Laid-Open No. 59-188678, a cylindrical toner container 4 having a spiral guide portion 3 on its inner surface is communicated with a toner introduction portion to a developing portion, and the above-mentioned container is It is known that a means for holding the opening portion substantially horizontally toward the toner introducing portion and a rotation driving means 5 for rotationally driving the storage container held by the holding means around its axis are known. Has been.

[0003]

[Problems to be solved by the device]

 However, in the above-described conventional toner replenishing device, the container main body and the gear for rotating the container are separate parts, and since the gear is set in the container main body, the productivity is increased because two parts are set. Poor There was a problem such as a malfunction such as not rotating due to incomplete gear set.

[0004]

[Means for Solving the Problems]

 A toner replenishing device for a dry copying machine according to the present invention comprises at least a cylindrical toner container having a spiral guide portion on its inner surface and a drive receiving member for rotating the toner container. The container and the drive receiving member are integrally molded. The drive receiving member is preferably a cylindrical gear or a bevel gear.

[0005]

A toner replenishing device for a dry copying machine according to the present invention includes at least a cylindrical toner container having a spiral guide portion on its inner surface, and a drive receiving member for rotating the toner container. Since the storage container and the drive receiving member are integrally molded, the drive receiving member can be securely fixed to the toner storage container and can be processed in the connecting step. When the drive receiving member is a cylindrical gear or a bevel gear, by rotating the toner storage container, the toner storage container can be moved in the axial direction to be easily stored or taken out in the dry copying machine.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing a toner replenishing device according to an embodiment of the present invention, and FIG. 2 is an explanatory view showing another embodiment of the present invention. In FIG. 1, a toner storage container main body 1 provided with a spiral guide portion 3 and a gear as a drive receiving member 6 are integrally molded by a blow molding method. In FIG. 2, a gear as the drive receiving member 6 is integrally molded so as to be formed on the lower surface of the toner container main body 1.

[0007]

[Effect of the device]

 As described above, the toner replenishing device for a dry copying machine according to the present invention includes at least a cylindrical toner storage container having a screw-shaped guide portion on its inner surface and a drive receiving member for rotating the toner storage container. Since the toner storage container and the drive receiving member are integrally molded, the drive receiving member can be securely attached and fixed to the toner storage container and can be processed in a continuous process so that the toner storage container is a dry type. It can be installed and removed from a copying machine reliably, and is inexpensive and has excellent productivity. When the drive receiving member is a cylindrical gear or a bevel gear, the toner storage container is rotated to move the toner storage container in the axial direction so that the toner storage container can be easily stored in or taken out from the dry copying machine. Work is easy and convenient.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a toner replenishing device according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing another embodiment of the present invention.

FIG. 3 is an exploded explanatory view showing an example of a toner storage container 4 and a rotation driving means 5 which are components of a conventional toner supply device.

FIG. 4 is a toner storage container 4 and a rotation driving means 5 shown in FIG.
FIG. 11 is an explanatory diagram showing an example of a conventional toner replenishing device in which and are engaged.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Toner storage container main body 2 Gear 3 Spiral guide part 4 Toner storage container 5 Rotation drive means 6 Drive receiving member

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Hideo Ichikawa 1-3-6 Nakamagome, Ota-ku, Tokyo Inside Ricoh Co., Ltd. (72) Seiji Ozawa 1-3-6 Nakamagome, Ota-ku, Tokyo Within Ricoh Co., Ltd. (72) Inventor Yoshiharu Morita 1-3-6 Nakamagome, Ota-ku, Tokyo Inside Ricoh Co., Ltd. (72) Toshisa Nishizaki 1-3-6 Nakamagome, Ota-ku, Tokyo Ricoh Co., Ltd. Within

Claims (3)

[Scope of utility model registration request] 1. A toner storage container having a cylindrical shape having a spiral guide portion on its inner surface, and a drive receiving member for rotating the toner storage container, wherein the toner storage container and the drive receiving member are integrated. A toner replenishing device for dry copiers molded into 2. The toner replenishing device for a dry copying machine according to claim 1, wherein the drive receiving member is a cylindrical gear. 3. The toner replenishing device for a dry copying machine according to claim 1, wherein the drive receiving member is a bevel gear.