JPH05147300A - Insertion type carrier unit - Google Patents

Abstract

PURPOSE:To easily assemble and detach a carrier unit by providing an post- attaching structure in the carrier unit used in a printer. CONSTITUTION:The post-attachment of a carrier unit is enabled by inserting a guide shaft 14 in the insertion part 12 of a carrier frame 11 from a diameter direction through a receiving hole 12a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier unit used in a printer or the like, and more particularly to a plug-in type carrier unit.

[0002]

2. Description of the Related Art Conventionally, in this type of carrier unit, as shown in FIG. 2, a recess 21a for receiving a projection 24a of a guide plate 24 is provided on one side of a carrier frame 21, and a through hole 21b is provided on the other side. Has been.

In the prior art, the sleeve 22 is press-fitted into the through hole 21b of the carrier frame 21, the guide shaft 23 is fitted into the sleeve 22, and these assemblies are incorporated in the apparatus.

[0004]

In this conventional carrier unit, it is necessary to pass the guide shaft through the guide shaft before incorporating it into the apparatus, which is troublesome.

Further, there is a problem in that the carrier unit becomes an obstacle when it is incorporated into the apparatus, so that it may be difficult to incorporate it unless it is pressed with one hand.

In addition, since the guide shaft has to be removed once even when the carrier frame is damaged or replaced when it fails, there is a problem in that it requires large-scale disassembly and that the adjustment when reassembling must be redone. there were.

An object of the present invention is to provide a plug-in type carrier unit having a retrofit structure.

[0008]

In order to achieve the above object, in the insertion type carrier unit according to the present invention, the insertion portion is fitted to a guide shaft provided in a printing device or the like and slides on the guide shaft. The carrier unit is supported so that the insertion portion of the carrier unit has an opening for receiving the guide shaft in the radial direction.

[0009]

The structure is a retrofit structure in which the insertion portion of the carrier unit is fitted to the guide shaft which is already attached to the printing device or the like through the open receiving port.

[0010]

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

(Embodiment 1) FIG. 1 is a perspective view showing Embodiment 1 of the present invention, FIG. 3 (a) is a front view showing a concrete example of Embodiment 1, and FIG. 3 (b) is the same perspective view. ..

In the figure, in the present embodiment, the guide plate 15 and the guide shaft 14 are preliminarily fixed to a machine frame such as a printing device, and the carrier unit has a retrofit structure.

That is, the carrier frame 11 has a concave portion 1 which is fitted to the protrusion 15a of the guide plate 15 on one side.
1a, and the insertion portion 12 slidably supported by the guide shaft 14 on the other side.

The insertion portion 12 has a guide shaft 1 on the lower side.
4 has a receiving opening 12a opened in a size suitable for receiving 4 from the radial direction, and a sleeve 13 is press-fitted on the inner peripheral side excluding the receiving opening 12a.

In the embodiment shown in FIGS. 3 (a) and 3 (b), the receptacle 12 of the insertion portion 12 is formed on a part of the peripheral surface of the guide shaft 14.
Plane parts 14a, 14 cut out according to the opening size of a
a.

When retrofitting the carrier unit, the guide shaft 14 is fitted with the flat surface portions 14a, 14a of the guide shaft 14 aligned with the receiving openings 12a of the insertion portion 12.
The insertion portion 12 is inserted into and fitted to each other, and the insertion portion 12 is slidably supported by the guide shaft 14.

On the other hand, the guide shaft 14 is fitted into the insertion portion 12 and then rotated by a certain angle to deviate the flat surface portion 14a from the position of the receptacle 12a to prevent the flat portion 14a from coming off from the insertion portion 12.

(Second Embodiment) FIG. 4 is a diagram showing a second embodiment of the present invention.

In this embodiment, the size of the receptacle 12a provided in the insertion portion 12 of the carrier unit is set to be the same as the diameter of the guide shaft 14 or slightly larger. After inserting the insertion portion 12 of the carrier frame 11 into the guide shaft 14, the slide piece 16 is inserted to prevent the carrier frame 11 from falling off. Further, by removing the slide piece 16, the carrier frame 11 can be easily removed.

[0020]

As described above, according to the present invention, since the carrier unit can be incorporated after the guide shaft is attached to the main body of the printing apparatus or the like, it is possible to easily assemble the carrier unit. It has the effect of being removable and replaceable.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a conventional example.

FIG. 3 is a detailed view of the first embodiment of the present invention.

FIG. 4 is a detailed view of the second embodiment of the present invention.

[Explanation of symbols]

 11 Carrier Frame 12 Insertion Part 12a Receptacle for Insertion Part 13 Sleeve 14 Guide Shaft 15 Guide Plate 16 Slide Piece

Claims (1)

[Claims] 1. A carrier unit in which an insertion portion is fitted to a guide shaft provided in a printing device or the like and is slidably supported by the guide shaft, wherein the insertion portion of the carrier unit is a guide shaft. A plug-in type carrier unit having an opening for receiving from a radial direction.