CN100411879C

CN100411879C - Element for fixing ink-ribbon reel on its cartridge

Info

Publication number: CN100411879C
Application number: CNB2005101086284A
Authority: CN
Inventors: 邱垂健
Original assignee: Hiti Digital Inc
Current assignee: Chengyan science and Technology (Suzhou) Co. Ltd.
Priority date: 2005-10-10
Filing date: 2005-10-10
Publication date: 2008-08-20
Anticipated expiration: 2025-10-10
Also published as: KR20070039854A; CN1948019A

Abstract

A fixing element for fixing the rotary axle of color ribbon to the box of color ribbon has multiple reception units for fixing multiple blade of said rotary axle, a fastening rod connected to ribbon box, and an insertion pin able to be inserted in a slot of ribbon box to prevent the fixing element from being loosened. It can prevent the axle of ribbon from rotating, so preventing the wrinkle generation on ribbon.

Description

Retaining element on the color ribbon cartridge is fixed in the colour band rotating shaft

Technical field

The present invention relates to a kind of retaining element, especially relate to and a kind of retaining element on the color ribbon cartridge is fixed in the colour band rotating shaft.

Background technology

The thermal printer colour band is in two colour band rotating shafts, and two colour band rotating shafts are separately positioned on the both sides of a color ribbon cartridge, yet, there is no effective fixed mechanism between colour band rotating shaft and the color ribbon cartridge, therefore in transporting the process of color ribbon cartridge, may rotate because of external force collision or vibrations cause the colour band rotating shaft, and then make the colour band color ribbon cartridge that hangs down to.The easy fold behind the color ribbon cartridge because colour band very thin thickness, colour band hang down to, this will have a strong impact on print quality.

General settling mode is to utilize frictional force to prevent colour band rotating shaft rotation.For instance, consult Fig. 1; Fig. 1 prevents the schematic diagram that colour band rotating shaft 12 is rotated for prior art.One side of the colour band feed end of color ribbon cartridge 10 is provided with a baffle plate 14, and wherein the length of colour band rotating shaft 12 is greater than the distance between baffle plate 14 and the color ribbon cartridge base portion 16, so colour band rotating shaft 12 can be pressed onto baffle plate 14, causes baffle plate 14 distortion.And the restoring force that baffle plate 14 distortion are produced is pushed colour band rotating shaft 12 to color ribbon cartridge base portion 16, makes to produce a frictional force between colour band rotating shaft 14 and the color ribbon cartridge base portion 16, utilizes this frictional force to avoid the rotation of colour band rotating shaft 12.In addition, also can utilize other flexible member to replace baffle plate 14 in the prior art, as long as a side of the colour band feed end of color ribbon cartridge 10 can provide a thrust to push colour band rotating shaft 12 to color ribbon cartridge base portion 16, can between colour band rotating shaft 14 and color ribbon cartridge base portion 16, produce frictional force.

Yet baffle plate 14 is one-body molded on color ribbon cartridge 10, and in making the process of color ribbon cartridge 10, baffle plate 14 to the distance of color ribbon cartridge base portion 16 has error, therefore causes varying in size of restoring force, and frictional force also thereby different.Too small as frictional force, the colour band color ribbon cartridge 10 that may hang down to; Excessive as frictional force, can cause printer can't drive colour band.In addition, replace, also may cause varying in size of thrust because of elastic fatigue as the part of baffle plate 14 mode with shell fragment or spring.

Consult Fig. 2; The schematic diagram that Fig. 2 utilizes engaging tooth 17 and projection 18 to avoid rotating shaft 12 to rotate for prior art.For fear of the excessive or too small problem of frictional force, add one group of engaging tooth 17 in the place of rotating shaft 12 contact color ribbon cartridge base portions 16 in the prior art, be meshed with engaging tooth 17 and increase by a projection 18 on the color ribbon cartridge base portion 16, rotate to avoid rotating shaft 12.Yet this mode can not guarantee fully that still rotating shaft 12 is not rotated, and the restoring force deficiency that is provided as baffle plate 14 is so that projection 18 is meshed with engaging tooth 17, and rotating shaft 12 still may be rotated.

Summary of the invention

Therefore, main purpose of the present invention is to provide a kind of retaining element on the color ribbon cartridge is fixed in the colour band rotating shaft, to address the above problem.

The invention provides and a kind of retaining element on the color ribbon cartridge is fixed in the colour band rotating shaft, it includes a plurality of accommodating devices, fixes a plurality of blades of this colour band rotating shaft by this formed interval of a plurality of accommodating devices; One button bar is used to be bonded on this color ribbon cartridge; And a latch, be used to insert a groove of this color ribbon cartridge.

For above and other objects of the present invention, feature and advantage can more obviously be should be readily appreciated that, below especially exemplified by preferred embodiment, and conjunction with figs. is elaborated.

Description of drawings

The schematic diagram of Fig. 1 for preventing in the prior art that the colour band rotating shaft from rotating;

The schematic diagram of Fig. 2 for utilizing engaging tooth and projection to avoid rotating shaft to rotate in the prior art;

Fig. 3 is the schematic diagram of retaining element of the present invention;

Fig. 4 is arranged at the schematic diagram of color ribbon cartridge for colour band rotating shaft of the present invention;

Fig. 5 is for being assembled in the retaining element among Fig. 3 in the schematic diagram among Fig. 4.

The specific embodiment

In order to solve the problems of the prior art, the invention provides a kind of retaining element, as the fixed mechanism between colour band rotating shaft and the color ribbon cartridge.

Consult Fig. 3; Fig. 3 is the schematic diagram of retaining element 30 of the present invention.Retaining element 30 comprises a plurality of accommodating devices 32, a pull handle 33, a button bar 34, a support portion 36 and a latch 38.Button bar 34 comprises a shell fragment 35, also comprises a plurality of trips 37 on the shell fragment 35, and its end from shell fragment 35 extends.Consult Fig. 4 in the lump, Fig. 4 represents that colour band rotating shaft 12 is arranged at the schematic diagram of color ribbon cartridge 10, how colour band rotating shaft 12 is fixed on the color ribbon cartridge 10 with explanation retaining element 30.

The latch 38 of retaining element 30 is inserted in the groove 101 of color ribbon cartridges 10, and with a plurality of blades 121 in the spaced-apart alignment colour band rotating shaft 12 of 32 of a plurality of accommodating devices of retaining element 30, so that a plurality of blade 121 is fixed in the interval of a plurality of accommodating devices 32.Then, the shell fragment 35 of button bar 34 is pressed down gently and shell fragment 35 is inserted in the color ribbon cartridges 10, the trip 37 that extends from shell fragment 35 is bonded on the color ribbon cartridge 10, promptly finish assembling, as the schematic diagram of assembling among Fig. 5.After having assembled, the contact-making surface 122 in the support portion 36 contact colour band rotating shafts 12 of retaining element 30 can further limit the axial displacement of colour band rotating shaft 12 like this, and the part that can avoid retaining element 30 to be bonded in the colour band rotating shaft 12 swings.In addition, a plurality of accommodating devices 32 of the retaining element 30 of Fig. 3 are a plurality of projectioies, and the interval that these a plurality of accommodating devices are 32 forms a plurality of grooves or a plurality of hole.Because structure and manufacturing factor, usually has more than one groove 101 on the color ribbon cartridge 10, and the interval that a plurality of accommodating devices are 32 is evenly distributed on the circumference, therefore retaining element 30 can different angles be installed on the color ribbon cartridge 10, do not need strict restriction retaining element 30 to install with single direction, only need guarantee that a plurality of intervals of accommodating device 32 on the retaining element 30 can aim at arbitrary groove 101 that a plurality of blades 121 in the colour band rotating shaft 12 and latch 38 can insert on the color ribbon cartridge 10 and get final product, so also can increase the convenience of installation.

As transport in the process of color ribbon cartridge 10, there are external force collision or vibrations to produce, utilize the latch 38 and the button bar 34 of retaining element 30 of the present invention to be engaged in the chucking power that is produced on the color ribbon cartridge 10, just can firm whole retaining element 30, and, rotate to avoid colour band rotating shaft 12 by a plurality of blades 121 in the fixed interval colour band rotating shaft 12 of 32 of a plurality of accommodating devices.Pull handle 33 on the retaining element 30 except button bar 34 can be buckled into easily color ribbon cartridge 10 in the process that retaining element 30 is installed on color ribbon cartridge 10, also can utilize it retaining element 30 can be disassembled in color ribbon cartridge 10 easily.

In addition, retaining element 30 of the present invention is the colour band feed ends that are engaged in color ribbon cartridge 10, because ribbon spool is in the colour band rotating shaft 12 of colour band feed end in the new color ribbon cartridge 10, the colour band rotating shaft of colour band recovery end only has the colour band of one, two circles, in the process of transporting color ribbon cartridge 10, be subjected to the influence of external force or vibrations and rotate as the colour band rotating shaft of colour band recovery end, its rotatory force is not sufficient to spur the colour band rotating shaft 12 of colour band feed end and rotates.Therefore, only use retaining element 30 of the present invention, can guarantee the colour band color ribbon cartridge 10 that do not hang down at the colour band feed end.

Compared with the prior art, the invention provides a kind of firm colour band rotating shaft of prior art and the method and element of color ribbon cartridge of being different from.Utilize latch and button bar to be engaged in color ribbon cartridge so that chucking power to be provided, and utilize the blade of a plurality of fixed interval colour band rotating shaft that a plurality of accommodating devices form to prevent that the colour band rotating shaft from rotating.In addition, by the contact-making surface of support portion contact colour band rotating shaft, to keep the position between color ribbon cartridge and the colour band rotating shaft.Therefore retaining element of the present invention can more positively be avoided the problem that the colour band rotating shaft is rotated in the process of transporting.

The above only is the preferred embodiments of the present invention, and all equivalent variations and modifications of being made according to claim scope of the present invention all should belong to protection scope of the present invention.

Claims

1. one kind is fixed in retaining element on the color ribbon cartridge with the colour band rotating shaft, and it includes:

A plurality of accommodating devices fix a plurality of blades of described colour band rotating shaft by this formed interval of a plurality of accommodating devices;

One button bar is used to be bonded on described color ribbon cartridge; And

One latch is used to insert a groove of described color ribbon cartridge.

2. retaining element as claimed in claim 1 wherein also comprises a support portion, contacts at the contact-making surface of colour band rotating shaft.

3. retaining element as claimed in claim 1 wherein also comprises a pull handle, is used for retaining element is installed on color ribbon cartridge.

4. retaining element as claimed in claim 1, the interval of wherein said a plurality of accommodating devices forms a plurality of grooves.

5. retaining element as claimed in claim 1, the interval of wherein said a plurality of accommodating devices forms a plurality of holes.

6. retaining element as claimed in claim 1, wherein said button bar comprises a shell fragment.

7. retaining element as claimed in claim 6, wherein said button bar also comprises a trip, it extends from shell fragment.