KR20000007384A - Ribbon cartridge of facsimile - Google Patents

Abstract

PURPOSE: A ribbon cartridge is provided to optionally untie the thermosensitive ribbon rolled in a supply roller and a wind-up roller by locking the supply roller and the wind-up roller in the state not to be installed in the body of the facsimile. CONSTITUTION: The ribbon cartridge comprises: a supply roller(40) installed a rotating shaft(42); a wind-up roller(41) formed in the same shape with the supply roller(40), and uniformly installed in the position separated from the supply roller(40) in a regular distance; a thermosensitive ribbon(50) rolled by transferring from the supply roller(40) to the wind-up roller(41) according to the moving of the wind-up roller(41).

Description

Facsimile Ribbon Cartridge

The present invention relates to a ribbon cartridge of a facsimile, and in particular, the ribbon of the facsimile which is so that the supply roller and the take-up roller is locked so that the thermal ribbon wound around the feed roller and the take-up roller is not released at random. Relates to a cartridge.

In general, a facsimile is an apparatus that electrically transmits and receives text, pictures, and photographs on a paper, and includes a transmission unit including a CIS (Contact Image Sensor) that recognizes the contents of the document and a CIS roller that transfers the document to the CIS. And a receiving unit including a TPH (Thermal Print Head) for receiving electrical signals received from the outside and recording them on a recording surface, and a platen roller for adhering paper to the TPH.

A facsimile having the above-described configuration is classified into a model using thermal recording paper which is directly thermally treated on the surface of the recording paper according to the model and dried in a roll form, and a model capable of printing data on general paper by attaching thermal ribbon.

In the model using the above-mentioned plain paper, the thermal ribbon wound between the feed roller on the ribbon cartridge and the take-up roller is simultaneously transferred when the paper passes the TPH, and in this process, the data on the surface of the thermal ribbon is treated with wax coating. Is output, the output data is configured to be transferred onto the paper.

1 is an exploded perspective view showing a ribbon cartridge of a conventional facsimile.

Referring to this, a cartridge seating portion 112 is formed in the frame 110 of the facsimile body, and a pair of roller grooves 114 are orthogonal to the paper feeding direction at a position away from the cartridge seating portion 112. It is formed side by side in the direction to become. On both side walls of each of the roller grooves 114, there is a driving shaft 116 which is rotated in a predetermined direction by receiving power from a separate driving motor (not shown).

Then, the TPH 120 is provided between the roller grooves 114 on the cartridge seat 112 in a direction orthogonal to the paper feed direction.

On the other hand, the ribbon cartridge 130 is wound between the supply roller 140, the winding roller 141, and each of the rollers 140, 141 is transferred from the supply roller 140 to the winding roller 141 during operation The winding is composed of a thermal ribbon (50), the winding roller 141, the supply roller 140 and the storage case 160, the thermal ribbon 50 is accommodated.

The storage case 160 has a lower surface opening, a through hole 162 of a predetermined size is formed in the upper surface center, the shaft hole 166 is fitted into the rotating shaft 142 on the rollers 140, 141 on both sides. ) Is formed.

Figure 2 is a side cross-sectional view showing a facsimile equipped with a conventional ribbon cartridge.

Referring to this, the ribbon cartridge 130 in a state in which the supply roller 140, on which the thermal ribbon 50 is wound, and the rotating shaft 142 on the winding roller 141 are pivotally fitted into the shaft hole 166 on the storage case 160. ) Is mounted to the cartridge seat 112 in the facsimile body.

When the feed roller 140 and the winding roller 141 are inserted in each roller groove 112 in this state, the thermal ribbon 50 wound therebetween is positioned on the upper surface of the TPH 120 and the roller groove 112 at the same time. Drive shafts 116 protruding from both side walls of the rollers are fitted to the rotating shafts 142 of the rollers.

When the paper 80 set in the paper feed cassette is supplied by the ASF roller in the attached state, the driving motor is driven by applying a signal to the microcomputer, and the driving roller 116 is rotated in response to the driving force. ) And the winding roller 141 is rotated to pass through the TPH 120 in a state in which the paper 80 and the thermal ribbon 50 are in close contact with each other up and down.

However, when the ribbon cartridge 130 of the conventional facsimile is not provided with a locking member that restricts rotation of the supply roller 140 and the take-up roller 141, when the ribbon cartridge 130 is separated from the facsimile, Since the supply roller 140 on the ribbon cartridge 130 and the rotating shaft 142 on the take-up roller 141 are arbitrarily rotated in the shaft hole 166, the thermal ribbon 50 wound around both rollers 140 and 141 is released. There is a problem of loosening.

When the thermal ribbon 50 is released as described above, there is an inconvenience of rewinding the thermal ribbon 50 when the ribbon cartridge 130 is mounted on the facsimile.

In addition, when the thermal ribbon 50 is loosely mounted inside the facsimile body, the transfer state is poor as the sheet is folded or wrinkled in the printing process, and is caught in a mechanism such as the TPH 120 or the platen roller. There is a serious problem that causes the unit to malfunction.

An object of the present invention is to provide a ribbon cartridge of the facsimile so that the supply roller and the take-up roller is locked in a state where it is not mounted on the facsimile body so that the thermal ribbon wound around the feed roller and the take-up roller is not released.

1 is an exploded perspective view showing a ribbon cartridge of a conventional facsimile,

Figure 2 is a side cross-sectional view showing a facsimile equipped with a conventional ribbon cartridge,

3 is an exploded perspective view showing a ribbon cartridge of a facsimile according to the present invention;

Figure 4 is an exploded perspective view showing the inverted ribbon cartridge 180 ° of the facsimile according to the present invention,

5 is a perspective view of a main part of a locking plate constituting a locking member of a ribbon cartridge of a fax according to the present invention;

Figure 6 is a cross-sectional view showing a coupling state of the ribbon cartridge according to the present invention,

Figure 7 is a cross-sectional view showing a state in which the ribbon cartridge according to the invention mounted on the facsimile.

*** Explanation of symbols for the main parts of the drawing ***

10 frame 12 cartridge compartment

14 roller groove 16 drive shaft

20: TPH 30: Ribbon Cartridge

40: supply roller 41: winding roller

42: rotation axis 46: locking plate

47: stopper locking groove 48: release prevention jaw

49: coil spring seating groove 50: thermal ribbon

60: storage case 62: opening

66: shaft work 68: stopper

70: coil spring.

In order to achieve the above object, the present invention is made of a rod-shaped having a constant length, both ends of the feed roller protruding the rotation axis, made of the same shape as the feed roller, at a position away from the supply roller Winding rollers installed side by side, one end is wound a plurality of times in a state fixed to the feed roller, while the other end is transported from the feed roller to the take-up roller in accordance with the rotation of the take-up roller fixed to the take-up roller The thermal ribbon being wound, the bottom is opened and the opening of a certain size is formed in the center of the upper surface, the storage case is formed on both sides of the front end and the rear end shaft hole for fitting the rotary shaft on the feed roller and the winding roller, and the storage case Always opposite in the state of being fitted on one rotation shaft of feed roller and take-up roller inserted in one shaft hole In the state in which the elastic action in the direction of the rotation axis is installed inside the side of the storage case corresponding to a position away from the shaft hole in which the other rotating shaft of the feed roller and the winding roller and the rotating shaft are inserted are not mounted on the facsimile body. It is characterized in that it comprises a locking member for engaging with each other by the elastic force of the elastic member to limit the rotation of the feed roller and the winding roller.

In the present invention, the locking member is at least one stopper protruding into the side of the storage case corresponding to a position away from the shaft hole in which one of the rotary shaft on the feed roller and the take-up roller, and the feed roller and the take-up roller The elastic member is formed to protrude to a predetermined radius on the opposite rotation axis of the rotary shaft, the outer peripheral surface has a feature consisting of an annular locking plate formed with a plurality of stopper engaging grooves at regular intervals.

In the present invention, an annular release prevention jaw is formed at the boundary of the rotating shaft on the supply roller and the take-up roller in which the elastic member is fitted, and a coil spring seating groove is formed at the base of the release prevention jaw.

According to the configuration of the present invention, the thermal ribbon is not released at random as the supply roller and the take-up roller are not rotated while the ribbon cartridge is not mounted to the facsimile body, and the locking state is released when the ribbon cartridge is mounted to the facsimile body. As the feed roller and the take-up roller rotate, the rotational operation of the thermal ribbon becomes possible.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is an exploded perspective view showing a ribbon cartridge of the facsimile according to the present invention, Figure 4 is an exploded perspective view showing a 180 ° inverted ribbon cartridge of the facsimile according to the present invention.

Referring to FIG. 3, a cartridge seating portion 12 is formed in the frame 10 of the facsimile body, and the cartridge seating portion 12 has a pair of roller grooves facing in a direction perpendicular to the direction in which the paper is fed ( 14) are formed side by side at a predetermined distance from each other, the drive shaft 16 is rotated in a predetermined direction by receiving the power transmitted from a separate drive motor (not shown) from both inner surfaces of each roller groove 14 Protrudes to a certain length.

In addition, the TPH 20 is installed in the center portion of the cartridge seating portion 12 corresponding to the pair of roller grooves 14 in a direction orthogonal to the paper feed direction.

On the other hand, the ribbon cartridge 30 is wound a plurality of times in a state fixed to the supply roller 40, the winding roller 41 and the supply roller 40, the other end is fixed to the winding roller 41 In accordance with the rotation of the take-up roller 41 in the transfer roller 40 to the winding roller 41 is wound while being transferred to the winding roller 41, and each of the rollers 40, 41 and the thermal ribbon (50) A storage member 60 to be accommodated, a locking member for restricting rotation of the supply roller 40 and the take-up roller 41 in a state where it is not mounted on the facsimile body, and the locking and releasing operation of the locking member is elastically performed. It is made of an elastic member to be made.

In the ribbon cartridge 30 of the present invention, the feed roller 40 and the take-up roller 41 installed side by side at a predetermined distance from the feed roller 40 are both rod-shaped. It is made, and both ends have a structure in which the rotating shaft 42 protrudes.

The storage case 60 is open at the bottom and has an opening 62 having a predetermined size in the center of the upper surface, and the rotating shaft 42 on the supply roller 40 and the winding roller 41 is formed at both sides of the front end and the rear end. A shaft hole 66 to be fitted is formed.

On one rotation axis of the supply roller 40 and the take-up roller 41 inserted into one side shaft hole 66 of the storage case 60 is always configured to fit the elastic member in the opposite direction of the rotation axis, the elastic member is Coil spring 70 is made.

In the present invention as described above, the driving shaft 16 is formed at the front end of the 'D'-cut method, and according to the' D 'type on the end surface of the one side rotation shaft 42 on the supply roller 40 and the take-up roller 41 accordingly. Joining holes are formed.

Meanwhile, as shown in FIG. 4, the locking member has a storage case 60 corresponding to a position away from the shaft hole 66 into which one of the rotary shafts 42 on the feed roller 40 and the take-up roller 41 is fitted. At least one stopper 68 protruding inwardly of the side of the side), and the rotary shaft 42 opposite to the rotary shaft 42 to which the coil spring 70 on the feed roller 40 and the take-up roller 41 are fitted, as shown in FIG. As described above, it is formed to protrude at a predetermined radius, and formed on the outer circumferential surface of the annular locking plate 46 formed with a plurality of stopper engaging grooves 47 at regular intervals.

An annular detachment stopper 48 is formed at a boundary between the supply roller 40 and the rotation shaft 42 on the take-up roller 41 to which the elastic member is fitted, and a coil spring seating groove (base) at the base of the release stopper 48. 49) is formed.

Figure 6 is a cross-sectional view showing a coupling state of the ribbon cartridge according to the present invention.

Referring to this, both the rotary shafts 42 on the supply roller 40 and the winding roller 41 on which the thermal ribbon 50 is wound are fitted into the shaft holes 66 formed on both sides of the storage case 60, respectively, Coil springs 70 having elasticity acting in the opposite rotation axis direction on one side rotation axis corresponding to one side inner surface of the storage case 60 and the release prevention jaw 48 on the supply roller 40 and the take-up roller 41. ) Is fitted and combined.

The stopper 68 protruding from the inner surface of the storage case 60 as the supply roller 40 and the winding roller 41 are in close contact with the opposite side of the storage case 60 by the action of the coil spring 70 as described above. Is fitted into the stopper engaging groove 47 formed in the locking plate 46 on the rollers 40 and 41 to prevent any rotation of the feed roller 40 and the take-up roller 41.

Figure 7 is a cross-sectional view showing a state in which the ribbon cartridge according to the invention mounted on the facsimile.

Referring to this, when the ribbon cartridge 30 according to the present invention is mounted on the cartridge mounting portion 12 on the frame 10, the side of the lock plate 46 is formed on the supply roller 40 and the take-up roller 41. The drive shaft 16 on the roller groove 14 is fitted into the inner circumferential surface of the rotating shaft 42. The coil spring of which the feed roller 40 and the take-up roller 41 are elastic members is formed by the length of the drive shaft 16 protruding. Compress (70) in the opposite direction.

As a result, the stopper 68, which has been fitted into the stopper engaging groove 47 on the lock plate 46, is separated, and the rollers 40 and 41 are in a rotatable state.

In this state, when the driving motor (not shown) is rotated, the driving shaft 16 is rotated by receiving the power, and as a result, the supply roller 40 and the take-up roller 41 are rotated. The wound thermal ribbon 50 is wound while being transported toward the take-up roller 41.

At this time, when the paper passes through the upper surface of the storage case 60, the data is thermally transferred to the paper surface by the action of the TPH 20 and the thermal ribbon 50 on the frame 10.

When the ribbon cartridge 30 is mounted on the cartridge seat 12 while being used as described above, the pressing force applied by the drive shaft 16 is released as shown in FIG. 6, and at the same time, the opposite rotation shaft 42 is removed. As the coil spring 70 inserted into the outer circumferential surface is returned to its original state, the supply roller 40 and the take-up roller 41 are also returned to their original state, and the stopper engaging groove 47 on the lock plate 46 is returned. The stopper 68 is caught to prevent rotation of the feed roller 40 and the take-up roller 41.

When the present invention is applied, the thermal ribbon is not loosened because the supply roller and the winding roller constituting the ribbon cartridge are locked in the state where it is not attached to the facsimile body.

Therefore, since the thermal ribbon is mounted on the main body in a loose state, it is possible to prevent a defective transfer state due to the wrinkled or folded state of the thermal ribbon and to prevent malfunction of the device.

Claims (4)

It is made of a rod-shaped having a predetermined length, both ends of the supply roller 40 protruding the rotating shaft 42; A winding roller 41 formed in the same shape as the feed roller 40 and installed side by side at a predetermined distance from the feed roller 40; One end is wound a plurality of times in a state fixed to the feed roller 40, the other end from the feed roller 40 in accordance with the rotation of the take-up roller 41 in a state fixed to the take-up roller 41 A thermal ribbon 50 wound around the winding roller 41; The bottom surface is opened and an opening portion 62 having a constant size is formed in the center of the upper surface, and the shaft hole 66 for fitting the rotary shaft 42 on the feed roller 40 and the take-up roller 41 is formed at both sides of the front end portion and the rear end portion. A formed storage case 60; An elastic member which is always elastically acting in the opposite rotation axis direction in a state of being fitted on one rotation shaft 42 of the supply roller 40 and the take-up roller 41 inserted into one shaft hole 66 of the storage case 60; The other rotary shaft of the feed roller 40 and the take-up roller 41 and the rotary shaft are installed inside the side of the storage case 60 corresponding to a position away from the shaft hole 66 to be inserted into the facsimile body. In the non-state of the ribbon cartridge of the facsimile including a locking member that is engaged with each other by the elastic force of the elastic member to limit the rotation of the supply roller 40 and the take-up roller 41 The method of claim 1, At least one locking member protrudes into the side of the storage case 60 corresponding to a position away from the shaft hole 66 into which one of the rotary shafts 42 on the supply roller 40 and the take-up roller 42 is fitted. A stopper 68; The supply roller 40 and the take-up roller 41 is formed to protrude at a predetermined radius on the opposite rotation axis of the rotary shaft to be fitted with an elastic member, and an annular lock formed with a plurality of stopper engaging grooves 47 at regular intervals on the outer peripheral surface A facsimile ribbon cartridge consisting of a plate 46. The method of claim 1, The elastic member is a ribbon cartridge of a facsimile, characterized in that the coil spring (70). The method of claim 1, An annular detachment stopper 48 is formed at a boundary between the supply roller 40 and the rotation shaft 42 on the take-up roller 41 to which the elastic member is fitted, and a coil spring seating groove (base) at the base of the release stopper 48. 49) ribbon cartridge of the facsimile, characterized in that formed.