CN219523445U - Carbon ribbon box and printer - Google Patents

Abstract

The utility model belongs to the technical field of printers, and discloses a carbon ribbon box and a printer, wherein a carbon ribbon box shell of the carbon ribbon box comprises a bracket, and a carbon ribbon shaft is rotatably arranged on the bracket and is used for installing a carbon ribbon; the elastic piece is arranged on the bracket and can be abutted against the carbon ribbon shaft along the direction perpendicular to the axial direction of the carbon ribbon shaft so as to prevent the carbon ribbon shaft from rotating, so that in the transportation process of the carbon ribbon box, the elastic piece can be abutted against the carbon ribbon shaft so as to limit the carbon ribbon shaft to rotate relative to the carbon ribbon box shell, and further the carbon ribbon is prevented from loosening; the elastic piece can elastically deform under the action of external force and move relative to the bracket so as to separate the elastic piece from the carbon belt shaft, thereby releasing the restriction on the rotation of the carbon belt shaft; in addition, the elastic piece is arranged on the support and elastically deforms along the direction perpendicular to the axial direction of the carbon ribbon shaft, so that the occupied space of the structure can be effectively reduced.

Description

Carbon ribbon box and printer

Technical Field

The utility model relates to the technical field of printers, in particular to a carbon ribbon box and a printer.

Background

The carbon ribbon of the printer is generally wound around a carbon ribbon shaft, which is mounted to the housing of the carbon ribbon cartridge and is rotatable relative to the housing of the carbon ribbon cartridge.

The carbon tape cartridge is usually required to be detached from the printer during transportation, however, when an external force or vibration is applied during transportation, the carbon tape shaft is easy to rotate relative to the housing of the carbon tape cartridge, resulting in loosening of the carbon tape.

To the above-mentioned problem, prior art provides a carbon ribbon cartridge, establishes a plurality of lugs at the tip of carbon ribbon axle along the axial of carbon ribbon axle to set up the elasticity joint spare on the casing of carbon ribbon cartridge, be equipped with the bellying on the elasticity joint spare, the bellying can follow the axial motion of carbon ribbon axle, and with the lug joint in order to restrict the rotation of carbon ribbon axle, can solve the not hard up problem of carbon ribbon in the transportation. However, there is a problem in that since the protruding portion of the elastic joint member moves in the axial direction of the carbon ribbon shaft and the protruding portion is also provided at the end portion of the carbon ribbon shaft, the elastic joint member is also required to be provided at the end portion of the carbon ribbon shaft, resulting in a large space occupation of the carbon ribbon cartridge in the axial direction of the carbon ribbon shaft.

Therefore, there is a need for a carbon tape cartridge and a printer to solve the above problems.

Disclosure of Invention

According to one aspect of the utility model, the utility model provides a carbon ribbon box, which is used for solving the problem of loosening of a carbon ribbon during transportation and reducing the space occupation of the carbon ribbon box along the axial direction of a carbon ribbon shaft.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a carbon ribbon cartridge for mounting a carbon ribbon, comprising:

a carbon ribbon cartridge housing including a bracket;

the carbon belt shaft is rotatably arranged on the bracket and used for installing the carbon belt;

the elastic piece is arranged on the bracket, can be abutted against the carbon ribbon shaft along the direction perpendicular to the axial direction of the carbon ribbon shaft so as to prevent the carbon ribbon shaft from rotating, and is configured to be elastically deformed under the action of external force and move relative to the bracket so as to separate the elastic piece from the carbon ribbon shaft.

As a preferable solution of the carbon ribbon cartridge, the elastic member may be elastically deformed under an external force to have a separated state and a limited state, when the elastic member is in the limited state, the elastic member may abut against an outer circumferential surface of the carbon ribbon shaft to prevent the carbon ribbon shaft from rotating, and when the elastic member is in the separated state, the elastic member may be separated from the carbon ribbon shaft and may always have a tendency to deform toward the limited state.

As a preferable solution of the carbon ribbon cartridge, the elastic member includes an elastic arm disposed on the support and a protrusion protruding from the elastic arm, when the elastic member is in a limited state, the elastic arm drives the protrusion to abut against an outer circumferential surface of the carbon ribbon shaft to prevent the carbon ribbon shaft from rotating, and when the elastic member is in a separated state, the elastic arm is used for driving the protrusion to separate from the carbon ribbon shaft.

As a preferable mode of the carbon ribbon cartridge, the outer circumferential surface of the carbon ribbon shaft has a plurality of grooves arranged at intervals along the circumferential direction thereof, and the protrusions can be alternatively inserted into any groove.

As a preferable mode of the carbon ribbon cartridge, the cross section of the groove is V-shaped, and/or the cross section of the projection is V-shaped.

As a preferable mode of the carbon ribbon cartridge, the bracket has a shaft hole and a containing groove communicating with the shaft hole, the carbon ribbon shaft is rotatably provided in the shaft hole, and the spring arm is mounted on a groove wall of the containing groove.

As a preferable mode of the carbon ribbon cartridge, a groove wall of the accommodating groove is provided with a limiting portion, and when the elastic member is in a limiting state, the elastic arm is abutted against the limiting portion.

As a preferable mode of the carbon ribbon cartridge, one end of the spring arm is provided on the bracket, and the other end is provided with a contact part, and the contact part is used for external force driving.

As a preferable mode of the carbon ribbon cartridge, the spring arm includes a first section and a second section connected to the first section, the first section is provided on the holder, the contact portion is provided on the second section, the first section is arc-shaped, the projection is provided on an inner side of the first section, and the carbon ribbon shaft is provided on an inner side of the first section.

According to another aspect of the present utility model, there is provided a printer including the above-described carbon tape cartridge, further including a printer housing to which the carbon tape cartridge housing is attached, and a cover plate provided to the printer housing, the printer housing having an opening, the cover plate being capable of opening or closing the opening.

As a preferable mode of the printer, the cover plate is fixedly provided with a driving block, when the cover plate closes the opening, the driving block can drive the elastic member to move so as to separate the elastic member from the carbon ribbon shaft, when the cover plate opens the opening, the driving block is separated from the elastic member, and the elastic member abuts against the outer circumferential surface of the carbon ribbon shaft so as to prevent the carbon ribbon shaft from rotating.

In a preferred embodiment of the printer, the driving block has a driving inclined surface, and the driving inclined surface is capable of abutting against the elastic member and driving the elastic member to move when the cover moves in a direction to close the opening.

As a preferable mode of the printer, the cover plate is rotatably provided on the printer housing, two of the carbon tape cassettes are provided, the carbon tape axes of the two carbon tape cassettes are parallel, and when the cover plate closes the opening, the movement directions of the elastic members of the two carbon tape cassettes are opposite.

The beneficial effects of the utility model are as follows:

the utility model provides a carbon ribbon box, wherein a carbon ribbon box shell comprises a bracket, a carbon ribbon shaft is rotatably arranged on the bracket and is used for installing a carbon ribbon; set up the elastic component on the support, the elastic component can be followed perpendicular to carbon ribbon axle axial direction and contradicted at the carbon ribbon axle to prevent that the carbon ribbon axle from rotating, thereby in the transportation of carbon ribbon box, the elastic component can be contradicted with the carbon ribbon axle in order to restrict the carbon ribbon axle and rotate for the carbon ribbon box casing, thereby prevent that the carbon ribbon is not hard up. And the elastic piece can elastically deform under the action of external force and move relative to the bracket so as to separate the elastic piece from the carbon ribbon shaft, thereby releasing the restriction on the rotation of the carbon ribbon shaft. In addition, the elastic piece is arranged on the support and elastically deforms along the direction perpendicular to the axial direction of the carbon ribbon shaft, so that the occupied space of the carbon ribbon box can be effectively reduced.

The utility model also provides a printer which comprises the carbon ribbon box, can prevent the problem of loosening of the carbon ribbon in the transportation process of the carbon ribbon box, and has smaller occupied space, so that the internal structure of the printer is more compact.

Drawings

FIG. 1 is a schematic view of a carbon ribbon cartridge according to an embodiment of the present utility model;

FIG. 2 is a schematic side view of a carbon ribbon cartridge according to a first embodiment of the present utility model;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a schematic diagram of a printer according to a second embodiment of the present utility model;

fig. 5 is an enlarged view at B in fig. 4;

fig. 6 is a schematic structural diagram of a carbon ribbon cartridge and a cover plate of a printer according to a second embodiment of the present utility model.

In the figure:

100. a carbon tape;

1. a carbon ribbon cartridge housing; 11. a bracket; 111. a shaft hole; 112. a receiving groove; 113. a limit part; 12. a connecting piece;

2. a carbon ribbon shaft; 21. a groove;

3. an elastic member; 31. a spring arm; 32. a protrusion; 33. a contact portion;

4. a printer housing;

5. a cover plate; 51. a driving block; 511. and driving the inclined plane.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

The carbon ribbon of printer is generally rolled up in the carbon ribbon axle, and the carbon ribbon axle is installed in the casing of carbon ribbon box to can rotate for the carbon ribbon box casing, generally need dismantle the carbon ribbon box from the printer when transporting, nevertheless in the in-process of transportation, the carbon ribbon axle takes place to rotate for the carbon ribbon box easily, leads to the carbon ribbon not hard up. The prior art provides a carbon ribbon box, and the bellying of elastic joint spare can follow the axial motion of carbon ribbon axle to with set up in the lug joint of carbon ribbon axle tip in order to restrict the rotation of carbon ribbon axle, can prevent that the carbon ribbon from becoming flexible in the transportation, but the carbon ribbon box is great along the axial occupation space of carbon ribbon axle.

To the above-mentioned problem, this embodiment provides a carbon ribbon box to solve the not hard up problem of carbon ribbon in the transportation, and reduce carbon ribbon box along the axial space occupation of carbon ribbon axle, can be used to printer technical field.

FIG. 1 is a schematic view showing a structure of a carbon tape cassette according to an embodiment of the present utility model; FIG. 2 is a schematic side view of a carbon ribbon cartridge according to a first embodiment of the present utility model; fig. 3 is an enlarged view at a in fig. 2. Referring to fig. 1 to 3, the carbon ribbon cartridge is used for mounting the carbon ribbon 100, and the carbon ribbon cartridge includes a carbon ribbon cartridge case 1, a carbon ribbon shaft 2 and an elastic member 3, and the carbon ribbon shaft 2 is rotatably provided to a bracket 11 and is used for mounting the carbon ribbon 100. Optionally, the support 11 is located at the end of the carbon ribbon shaft 2, and the end of the carbon ribbon shaft 2 is rotatably disposed through the support 11, or the end surface of the carbon ribbon shaft 2 is flush with the surface of the support 11. Generally, the number of the carbon tape shafts 2 is two, one carbon tape shaft 2 is used for winding the carbon tape 100, the other carbon tape shaft 2 is used for unwinding the carbon tape 100, and the two carbon tape shafts 2 are identical in structure and the carbon tape cassette housing 1 and the elastic member 3 which are matched with the two carbon tape shafts 2 are identical in structure, so that only one carbon tape shaft 2 and the carbon tape cassette housing 1 and the elastic member 3 which are matched with the one carbon tape shaft 2 are exemplified in the embodiment.

With continued reference to fig. 1-3, the elastic member 3 is disposed on the support 11 and can abut against the outer circumferential surface of the carbon ribbon shaft 2 to prevent the carbon ribbon shaft 2 from rotating, so that during transportation of the carbon ribbon cartridge, the elastic member 3 can abut against the carbon ribbon shaft 2 along a direction perpendicular to the axial direction of the carbon ribbon shaft to limit the carbon ribbon shaft 2 from rotating relative to the carbon ribbon cartridge housing 1, thereby preventing the carbon ribbon 100 from loosening. Specifically, the elastic member 3 may abut against the carbon ribbon shaft 2 along the radial direction of the carbon ribbon shaft 2, or may be perpendicular to other directions of the carbon ribbon shaft. In this embodiment, the elastic member 3 abuts against the outer peripheral surface of the carbon ribbon shaft 2, and in other embodiments, the carbon ribbon shaft 2 may be cylindrical and have an inner peripheral surface, and the elastic member 3 abuts against the inner peripheral surface of the carbon ribbon shaft 2, but obviously, the abutting of the elastic member 3 against the outer peripheral surface of the carbon ribbon shaft 2 can make the structure of the bracket 11 and the elastic member 3 simpler. Further, the elastic member 3 is configured to be elastically deformed by an external force and move with respect to the bracket 11 to separate the elastic member 3 from the carbon ribbon shaft 2, thereby releasing the restriction on the rotation of the carbon ribbon shaft 2. Because the elastic piece 3 is arranged on the bracket 11 and is elastically deformed along the direction perpendicular to the axial direction of the carbon ribbon shaft 2, the space of the carbon ribbon box along the axial direction of the carbon ribbon shaft 2 can be reduced, and the occupied space of the carbon ribbon box is effectively reduced.

With continued reference to fig. 1-3, the elastic member 3 can elastically deform under the action of external force to have a separated state and a limited state, when the elastic member 3 is in the limited state, the elastic member 3 can abut against the outer circumferential surface of the carbon ribbon shaft 2 to prevent the carbon ribbon shaft 2 from rotating, and when the elastic member 3 is in the separated state, the elastic member 3 is separated from the carbon ribbon shaft 2, and the elastic member 3 always has a tendency of deforming toward the limited state. That is, in the transportation process of the carbon ribbon cartridge, the elastic member 3 can always contact with the carbon ribbon shaft 2 without separate stress on the elastic member 3 to limit the carbon ribbon shaft 2 from rotating relative to the carbon ribbon cartridge housing 1, thereby preventing the carbon ribbon 100 from loosening.

With continued reference to fig. 1-3, the specific structure of the elastic member 3 is that the elastic member 3 includes an elastic arm 31 disposed on the support 11 and a protrusion 32 protruding on the elastic arm 31, when the elastic member 3 is in a limiting state, the elastic arm 31 drives the protrusion 32 to abut against the outer circumferential surface of the carbon ribbon shaft 2 so as to prevent the carbon ribbon shaft 2 from rotating, and when the elastic member 3 is in a separating state, the elastic arm 31 is used for driving the protrusion 32 to separate from the carbon ribbon shaft 2.

With continued reference to fig. 1-3, the interference of the elastic member 3 with the carbon ribbon shaft 2 to prevent the carbon ribbon shaft 2 from rotating may be achieved in a variety of ways: one of them is that the elastic member 3 abuts against the outer peripheral surface of the carbon ribbon shaft 2, and the rotation of the carbon ribbon shaft 2 is restricted by the frictional force between the elastic member 3 and the carbon ribbon shaft 2. It is apparent that restricting the rotation of the carbon ribbon shaft 2 only by friction force requires a large elastic force to be applied in the radial direction. Thus, the following structure is adopted in this embodiment: the outer peripheral surface of the carbon ribbon shaft 2 is provided with a plurality of grooves 21 which are arranged at intervals along the circumferential direction, and the protrusions 32 can be alternatively inserted into any groove 21 so as to limit the rotation of the carbon ribbon shaft 2 relative to the carbon ribbon cartridge shell 1. The protrusion 32 is inserted into the groove 21, so that the rotation of the carbon ribbon shaft 2 can be limited by a small elastic force. Alternatively, the carbon ribbon shaft 2 is provided with the groove 21 in a gear shape, and the tooth groove of the gear forms the groove 21.

With continued reference to fig. 1-3, the cross section of the groove 21 is V-shaped, so that when the protrusion 32 is inserted into the groove 21, the groove wall of the groove 21 can play a certain role in guiding the protrusion 32, so that the protrusion 32 is stably inserted into the groove 21. Alternatively, the cross section of the protrusion 32 is V-shaped, and the side wall of the protrusion 32 can also serve as a guide. Optionally, the cross section of the groove 21 and the cross section of the protrusion 32 are V-shaped, so that the side wall of the protrusion 32 can be attached to the wall of the groove 21, and the limiting effect is enhanced.

With continued reference to fig. 1-3, the bracket 11 has a shaft hole 111 and a receiving groove 112 communicating with the shaft hole 111, the carbon ribbon shaft 2 is rotatably provided in the shaft hole 111, and the spring arm 31 is mounted on a groove wall of the receiving groove 112. Thereby reducing the space occupied by the elastic member 3 and the bracket 11 to further reduce the space occupied by the carbon tape cartridge.

With continued reference to fig. 1-3, the groove wall of the accommodating groove 112 is provided with a limiting portion 113, when the elastic member 3 is in a limiting state, the elastic arm 31 abuts against the limiting portion 113, so as to avoid that the elastic arm 31 is deformed relative to the bracket 11 after the protrusion 32 is inserted into the groove 21, and the elastic arm 31 is excessively deformed.

With continued reference to fig. 1-3, in this embodiment, one end of the spring arm 31 is disposed on the support 11, the other end is provided with a contact portion 33, the contact portion 33 is used for external force driving, the protrusion 32 is disposed in the middle portion of the spring arm 31, and when the contact portion 33 is driven by external force, the spring arm 31 is driven to elastically deform, so as to drive the protrusion 32 to move. As an alternative, the protrusion 32 is disposed at one end of the spring arm 31, the contact portion 33 is disposed at the other end of the spring arm 31, and the connection portion between the spring arm 31 and the bracket 11 is located between the protrusion 32 and the contact portion 33, which can also drive the spring arm 31 to elastically deform through the contact portion 33, so as to drive the protrusion 32 to move. It is apparent that the scheme in the present embodiment has a relatively small external force for driving the contact portion 33, with a labor-saving effect.

With continued reference to fig. 1-3, the spring arm 31 is specifically configured such that the spring arm 31 includes a first section and a second section connected to the first section, the first section is disposed on the support 11, and the contact portion 33 is disposed on the second section. When the spring arm 31 is deformed under the drive of an external force, the stress is mainly concentrated at the joint of the spring arm 31 and the support 11, that is, the joint of the first section and the support 11, the spring arm 31 is easy to damage, in order to avoid the problem, the first section is arc-shaped, the bulge 32 is arranged on the inner side of the first section, and the carbon ribbon shaft 2 is positioned on the inner side of the first section, so that the stress of the first section is uniformly distributed on the whole arc-shaped first section, and the stress is prevented from being concentrated at the joint of the first section and the support 11.

With continued reference to fig. 1-3, alternatively, the second section is also arc-shaped, and the stress on the second section can be equally distributed on the whole arc-shaped second section, so as to avoid concentration of stress at the connection between the first section and the second section. At this time, the most concentrated stress portion of the whole spring arm 31 is still the connection between the first segment and the bracket 11, preferably, the first segment is circumscribed with the second segment, so that the stress acts on the connection between the first segment and the second segment in addition to the connection between the first segment and the bracket 11, so as to avoid the concentrated stress at the connection between the spring arm 31 and the bracket 11.

Example two

In the prior art, after the carbon tape box is assembled in the printer, the contact surface of the printer main body drives the protruding part of the elastic joint piece to move along the axial direction of the carbon tape shaft and separate from the protruding block arranged at the end part of the carbon tape shaft, so that the carbon tape shaft can normally rotate when the printer normally works, and the printing operation is completed. However, the carbon ribbon cartridge is not necessarily in a working state after being mounted on the printer, for example, when the cover plate of the printer is opened, the printer still may rotate relative to the carbon ribbon cartridge housing when the printer is vibrated, so that the carbon ribbon is loosened.

In view of the above, the present embodiment provides a printer.

Fig. 4 is a schematic diagram showing a printer according to a second embodiment of the present utility model; fig. 5 is an enlarged view at B in fig. 4; fig. 6 is a schematic diagram showing a configuration of a carbon tape cassette mated with a printer cover 5 in accordance with the second embodiment of the present utility model. Referring to fig. 4, the printer includes a carbon ribbon cartridge according to the first embodiment, and the carbon ribbon cartridge is disposed in the printer housing 4 (the carbon ribbon cartridge is not shown in the drawing), and the carbon ribbon cartridge occupies a smaller space, so that the internal structure of the printer is more compact. The printer further includes a printer housing 4 and a cover plate 5 provided to the printer housing 4, the carbon tape cartridge housing 1 is mounted to the printer housing 4, the printer housing 4 has an opening, and the cover plate 5 can open or close the opening.

Referring to fig. 4 to 6, the cover 5 is fixedly provided with a driving block 51, and when the cover 5 closes the opening, the driving block 51 can drive the elastic member 3 to move so as to separate the elastic member 3 from the carbon ribbon shaft 2, so that the carbon ribbon shaft 2 can rotate relative to the bracket 11, and the printer can be used normally; when the cover plate 5 opens the opening, the driving block 51 is separated from the elastic member 3, and the elastic member 3 abuts against the outer circumferential surface of the carbon ribbon shaft 2 to prevent the carbon ribbon shaft 2 from rotating, i.e., to restrict the carbon ribbon shaft 2 from rotating relative to the bracket 11. Therefore, after the carbon ribbon cartridge is installed in the printer, as long as the cover plate 5 is at the position of opening the opening, the elastic piece 3 can still limit the rotation of the carbon ribbon shaft 2, so that when an operator uncovers and overhauls, the carbon ribbon shaft 2 is static relative to the bracket 11, and the carbon ribbon 100 is prevented from loosening.

With continued reference to fig. 4-6, the driving block 51 has a driving inclined surface 511, and when the cover 5 moves in a direction of closing the opening, the driving inclined surface 511 can abut against the elastic member 3 and is used for driving the elastic member 3 to move. During the movement of the cover plate 5 in the opening closing direction, the driving block 51 moves in the movement direction of the cover plate 5, and the elastic member 3 is driven to move by the driving slope 511, so that the elastic member 3 is separated from the carbon ribbon shaft 2.

With continued reference to fig. 4-6, the carbon ribbon cartridges are provided with two for mounting two carbon ribbons 100, one carbon ribbon shaft 2 for winding up the carbon ribbon 100 and the other carbon ribbon shaft 2 for unwinding the carbon ribbon 100, the carbon ribbon shafts 2 of the two carbon ribbon cartridges being parallel. The carbon ribbon cartridge shells 1 of the two carbon ribbon cartridges can be fixedly connected through structures such as a connecting piece 12. When the connection relationship between the cover plate 5 and the printer housing 4 is different, there are also differences in the mounting directions of the two carbon tape cassettes, specifically, there are the following two cases:

the cover plate 5 is rotatably disposed on the printer housing 4, and there are two arrangement schemes: firstly, when the cover plate 5 closes the opening, the movement directions of the elastic members 3 of the two carbon ribbon cartridges are opposite, and specifically, the elastic members 3 of the two carbon ribbon cartridges can move oppositely or back to back; secondly, when the cover plate 5 closes the opening, the two elastic members 3 move in the same direction.

The cover plate 5 is slidably disposed on the printer housing 4, and at this time, the mounting directions of the two carbon ribbon cartridges can only be identical, that is, when the cover plate 5 closes the opening, the elastic members 3 of the two carbon ribbon cartridges move in the same direction.

In this embodiment, the cover 5 is rotatably disposed on the printer housing 4, and when the cover 5 closes the opening, the two elastic members 3 move back to each other, so that the directions of the deformation of the elastic members 3 of the two carbon ribbon cartridges are different, and the stress balance between the two carbon ribbon cartridges and the cover 5 is further achieved. Specifically, apron 5 rotates through the pivot and sets up in printer casing 4, and the carbon ribbon axle 2 of two carbon ribbon boxes is all parallel with the pivot, and the carbon ribbon axle 2 of two carbon ribbon boxes all is located one side of pivot, simultaneously, is used for also all being located one side of pivot with two carbon ribbon box complex two drive blocks 51, makes the structure of printer simpler.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (13)

1. A carbon ribbon cartridge for mounting a carbon ribbon (100), comprising:

a carbon ribbon cartridge case (1) including a bracket (11);

a carbon ribbon shaft (2) rotatably provided to the bracket (11) and configured to mount the carbon ribbon (100);

the elastic piece (3) is arranged on the support (11), can be abutted against the carbon ribbon shaft (2) along the direction perpendicular to the axial direction of the carbon ribbon shaft (2) so as to prevent the carbon ribbon shaft (2) from rotating, and is configured to be elastically deformed under the action of external force and move relative to the support (11), so that the elastic piece (3) is separated from the carbon ribbon shaft (2).

2. The carbon ribbon cartridge of claim 1, wherein the elastic member (3) is capable of being elastically deformed to have a separated state and a limited state by an external force, the elastic member (3) is capable of abutting against an outer circumferential surface of the carbon ribbon shaft (2) to prevent the carbon ribbon shaft (2) from rotating when the elastic member (3) is in the limited state, the elastic member (3) is separated from the carbon ribbon shaft (2) when the elastic member (3) is in the separated state, and the elastic member (3) always has a tendency to deform toward the limited state.

3. The carbon ribbon cartridge according to claim 2, wherein the elastic member (3) comprises an elastic arm (31) arranged on the support (11) and a protrusion (32) protruding from the elastic arm (31), when the elastic member (3) is in a limiting state, the elastic arm (31) drives the protrusion (32) to abut against the outer circumferential surface of the carbon ribbon shaft (2) to prevent the carbon ribbon shaft (2) from rotating, and when the elastic member (3) is in a separating state, the elastic arm (31) is used for driving the protrusion (32) to separate from the carbon ribbon shaft (2).

4. A carbon ribbon cartridge according to claim 3, wherein the outer circumferential surface of the carbon ribbon shaft (2) has a plurality of grooves (21) arranged at intervals along the circumferential direction thereof, and the protrusions (32) can be alternatively inserted into any groove (21).

5. The carbon ribbon cartridge according to claim 4, wherein the cross section of the groove (21) is V-shaped and/or the cross section of the protrusion (32) is V-shaped.

6. A carbon ribbon cartridge according to claim 3, wherein the bracket (11) has a shaft hole (111) and a receiving groove (112) communicating with the shaft hole (111), the carbon ribbon shaft (2) is rotatably provided in the shaft hole (111), and the spring arm (31) is mounted on a groove wall of the receiving groove (112).

7. The carbon ribbon cartridge according to claim 6, wherein a groove wall of the accommodation groove (112) is provided with a stopper portion (113), and the spring arm (31) abuts against the stopper portion (113) when the elastic member (3) is in a stopper state.

8. A carbon ribbon cartridge according to claim 3, wherein one end of the spring arm (31) is provided to the bracket (11), and the other end is provided with a contact portion (33), the contact portion (33) being for external force driving.

9. The carbon ribbon cartridge of claim 8, wherein the spring arm (31) includes a first section and a second section connected to the first section, the first section is provided to the bracket (11), the contact portion (33) is provided to the second section, the first section is arc-shaped, the protrusion (32) is provided to an inner side of the first section, and the carbon ribbon shaft (2) is located to an inner side of the first section.

10. A printer comprising a carbon tape cartridge according to any one of claims 1 to 9, further comprising a printer housing (4) and a cover plate (5) provided to the printer housing (4), the carbon tape cartridge housing (1) being mounted to the printer housing (4), the printer housing (4) having an opening, the cover plate (5) being capable of opening or closing the opening.

11. Printer according to claim 10, characterized in that the cover plate (5) is fixedly provided with a driving block (51), when the cover plate (5) closes the opening, the driving block (51) can drive the elastic member (3) to move so as to separate the elastic member (3) from the carbon ribbon shaft (2), when the cover plate (5) opens the opening, the driving block (51) is separated from the elastic member (3), and the elastic member (3) abuts against the outer circumferential surface of the carbon ribbon shaft (2) so as to prevent the carbon ribbon shaft (2) from rotating.

12. Printer according to claim 11, characterized in that said driving block (51) has a driving ramp (511), said driving ramp (511) being able to abut against said elastic element (3) and being adapted to drive the movement of said elastic element (3) when said cover plate (5) is moved in a direction closing said opening.

13. Printer according to claim 11, wherein said cover plate (5) is rotatably arranged on said printer housing (4), said carbon tape cassettes are provided with two, said carbon tape axes (2) of two said carbon tape cassettes are parallel, and when said cover plate (5) closes said opening, said elastic members (3) of two said carbon tape cassettes are moved in opposite directions.