Housing, tape cartridge and printer

Abstract

A housing comprising a first shell and a second shell connected to each other in a thickness direction of the housing, characterized in that: the housing is provided with a recess that opens on a width side of the housing and that penetrates the housing in the thickness direction, wherein the housing comprises an arm body and at least one identification column, wherein the arm body is arranged adjacent to the recess in a longitudinal direction of the housing, and wherein the at least one identification column protrudes from the arm body; the first shell comprises a first arm part and the second shell comprises a second arm part, wherein the arm body is formed by connecting the first arm part and the second arm part in the thickness direction; wherein at least one of the first arm part and the second arm part is designed as a hollow shell structure.

Description

CROSS-REFERENCE

[0001] This application claims priority to Chinese application No. 202520076126.0, filed on January 13, 2025. The entire disclosure of said patent application is hereby incorporated by reference into this application. TECHNICAL FIELD

[0002] The present utility model relates to the technical field of printing consumables, in particular a printing consumable ribbon cassette for a label printer, a housing therefor and a printer. BACKGROUND TECHNOLOGY

[0003] In the pressure equipment sector, the housing structure is typically manufactured using injection molding. To reduce production costs and material consumption, designers can optimize the housing structure in various ways, such as adjusting the wall thickness, arranging reinforcement ribs, incorporating weight-reducing structures, and rationally arranging functional structures. These optimizations ensure the basic functions of the housing while effectively reducing raw material costs.

[0004] However, it has been found in practice that excessive pursuit of material savings can compromise the structural strength and overall performance of the product. Particularly in areas subject to high loads or where precise positioning is required, an inadequately designed structure can lead to deformation during use due to insufficient local strength, which can impair the product's functionality.

[0005] Therefore, when designing the enclosure structure, it is necessary to comprehensively balance cost control, technical implementation, and product performance to ensure that the product maintains a good price-performance ratio while stably and reliably fulfilling the expected functions. This represents an urgent problem in this field that must be addressed. DISCLOSURE OF THE INVENTION

[0006] A first object of the present utility model is to provide a housing that increases the bending strength of the arm body.

[0007] A second object of the present utility model is to provide a cassette that increases the bending strength of the arm body to ensure the effective identification column.

[0008] A third objective of the present utility model is to provide a printer.

[0009] The housing provided by the first object of the present utility model includes a first shell and a second shell connected to each other in a thickness direction of the housing. The housing is provided with a recess opening on a width side of the housing and penetrating the housing in the thickness direction. The housing includes an arm body and at least one identification pillar, wherein the arm body is arranged adjacent to the recess in a longitudinal direction of the housing, and the arm body is spaced apart from the center of the housing with respect to the recess, and the at least one identification pillar protrudes from the arm body. The first shell includes a first arm part, and the second shell includes a second arm part, wherein the arm body is constituted by the first arm part and the second arm part connected to each other in the thickness direction.At least one of the first arm part and the second arm part is designed as a hollow shell structure.

[0010] From the above embodiment, it can be seen that the hollow shell structure has better bending strength compared to a single thin wall plate because the walls can be connected together in different directions. The two arm parts on the first shell and the second shell are butted together and assembled to form the arm body, and at least one of the arm parts is designed as a hollow shell structure, wherein the arm body can have a thicker thickness in the thickness direction of the housing, and the hollow shell structure has better strength. This ensures the bending and deformation strength of the arm body, which in turn ensures the effective detection of the identification column in the contact position. Furthermore, the formation of the hollow shell reduces the overall material consumption.

[0011] Furthermore, the cavity shell structure consists of at least two differently oriented walls and can be formed in one piece, wherein the walls can be assembled into a shell by connecting the edges of the plurality of differently oriented walls, wherein the walls can have a greater thickness.

[0012] It is further provided that one of the first arm part and the second arm part is designed as a hollow shell structure and the other of the first arm part and the second arm part is designed as a wall plate.

[0013] If one of the arm parts is designed as a hollow shell structure, material consumption can be further reduced by designing the other arm part as a wall panel if the strength requirements are met.

[0014] In another embodiment, the housing further comprises a first connecting pin and a first bore seat. The first connecting pin is disposed on one of the first arm part and the second arm part, and the first bore seat is disposed on the other of the first arm part and the second arm part. The first connecting pin and the first bore seat mate in the thickness direction, and both the first connecting pin and the first bore seat are disposed within the arm body.

[0015] If one of the arm sections is designed as a wall plate, the wall plate has even lower deformation resistance due to its inherent strength. If the wall plate only adjoins the cavity shell of the other arm section and there is no further connection, it can be irreversibly deformed under additional stress, such as accidental scratching or pulling with a finger. Therefore, the connection between the wall plate and the cavity shell structure is reinforced by the connecting pin and the bore seat.

[0016] It is also contemplated that the housing further comprises a second connecting pin and a second bore seat. The first shell comprises a first foot portion, the first foot portion being connected to the initial end of the extension of the first arm portion, and the second shell comprises a second foot portion, the second foot portion being connected to the initial end of the extension of the second arm portion. The second connecting pin is disposed on one of the first foot portion and the second foot portion, and the second bore seat is disposed on the other of the first foot portion and the second foot portion. The second connecting pin and the second bore seat mate with each other in the thickness direction, and both the second connecting pin and the second bore seat are disposed within the housing.

[0017] In order to consider the limited space inside the arm body, in this utility model, the second connecting pin and the second hole seat are provided in the first foot portion and the second foot portion, which have enough space and are close to the arm body, and the connection between the first arm part and the second arm part can also be strengthened.

[0018] Another embodiment is that an extension end of the arm body is designed as a bent part, that is, the extension end of the arm body is provided with the bent part extending from a base of the arm body in a direction near the recess.

[0019] Compared to the straight arm body, the arm body curved at the extension end allows the sidewall of the hollow shell structure to provide additional support during assembly. Furthermore, the curved extension of the arm body can prevent deformation of the housing, provide better bending strength, and increase the overall stability of the housing. At the same time, excessive stress concentrations during use can be avoided, thereby extending the service life of the hollow shell structure.

[0020] Another embodiment is that the base extends in a width direction of the housing and the bending part extends in the longitudinal direction of the housing.

[0021] A further embodiment consists in that the at least one identification column protrudes (ie protrudes) from the bent part, ie the at least one identification column comprises a plurality of identification columns, and at least one of the plurality of identification columns protrudes from the bent part.

[0022] The straight arm body does not fit the identification column layout of some models with cassettes. The "L"-shaped arm body, curved at the end of its extension, can meet the requirements for the identification column layout while saving material.

[0023] Another embodiment is that the housing includes a side wall, and the recess is formed between the side wall and the arm body. The side wall extends a distance in both the width direction of the housing and the length direction of the housing. The housing includes a connecting portion, wherein the surface side (i.e., the outer surface) of the side wall, the connecting portion, and the arm body are sequentially connected. The outer side of the side wall, except for the area connected to the connecting portion, is formed as a wall surface.

[0024] This arrangement allows unnecessary structures on the outer surface of the side wall to be reduced as much as possible, making the overall design more compact, increasing space utilization, and further saving the material of the housing.

[0025] A further embodiment consists in that the width side is provided with a first rectangular section, wherein a first end of the wall surface is connected to the first rectangular section; and / or that the longitudinal side of the housing is provided with a second rectangular section, wherein a second end of the wall surface is connected to the second rectangular section.

[0026] The arrangement of the rectangular section allows for more uniform stress transfer and avoids stress concentrations, thereby increasing the service life of the housing structure.

[0027] A further embodiment consists in that in the orthogonal projection in the thickness direction at least a part of the wall surface runs along a circular arc line; or that in the orthogonal projection in the thickness direction at least a part of the wall surface runs continuously curved.

[0028] The wall surface runs along a curved surface of fixed diameter or continuously curved, which allows the wall surface to have a curvature running from the wide side to the long side of the enclosure, thereby optimizing the outer contour of the enclosure and improving the aesthetic appearance.

[0029] A further embodiment consists in that the housing is provided with a pressure belt roller bore, wherein in the projection in the thickness direction the wall surface is arranged on the outer circumference of the pressure belt roller bore and covered at an angle greater than or equal to 45 degrees.

[0030] With this arrangement, the wall surface is concentric or nearly concentric with the pressure tape roller hole to create a more coordinated visual perception, which improves the aesthetic appearance.

[0031] The second purpose of the present utility model provides a tape cassette comprising a housing, the housing being designed as the housing described above.

[0032] The third purpose of the present utility model provides a printer comprising the tape cartridge described above. DESCRIPTION OF THE DRAWINGS Fig. 1 shows a structural view of a first embodiment of the housing according to the present utility model in a front view in the thickness direction. Fig. 2 shows a structural view of the first embodiment of the housing according to the present utility model in a second view. Fig. 3 shows a structural view of the first embodiment of the housing according to the present utility model in an exploded view. Fig. 4 shows a structural view of a second shell in the first embodiment of the housing according to the present utility model. Fig. 5 shows a structural view of the first embodiment of the housing according to the present utility model in a third view. Fig. 6 shows a structural view of the first embodiment of the housing according to the present utility model in a fourth view. Fig. 7 shows a structural view of a second embodiment of the housing according to the present utility model in a first view. Fig. 8 shows a structural view of the second embodiment of the housing according to the present utility model in an exploded view. Fig. 9 shows a structural view of the second embodiment of the housing according to the present utility model in a second view. Fig. 10 shows an enlarged view of area A in Fig. 1. DETAILED DESIGNS

[0033] The following describes in detail the embodiments of the technical solution of this application in conjunction with the accompanying drawings. The following embodiments serve only to clarify the technical solution of this application and are therefore to be understood only as examples and not as a limitation of the scope of protection of this application.

[0034] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terms used in this application are for the purpose of describing particular embodiments only and are not intended to be limiting of this application.

[0035] In the description of the embodiments of this application, the technical terms "first" and "second", etc., are used only to distinguish different objects and should not be understood as indicating or implying the relative importance or as implicitly indicating the number, particular order, or priority of the specified technical features.

[0036] In the description of the embodiments of this application, the term "plural" means more than two (including two); likewise, the term "plural groups" means more than two groups (including two groups), and the term "plural pieces" means more than two pieces (including two pieces), unless otherwise expressly stated.

[0037] In the description of the embodiments of this application, the technical terms "center", "length", "width", "thickness", "inner" and "outer", etc., refer to orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings and are used only to describe the embodiments of this application and to simplify the description; they do not indicate or imply that the specified devices or elements have a particular orientation or must be designed and operated in a particular orientation and should not be construed as limiting the embodiments of this application.

[0038] In the description of the embodiments of this application, technical terms such as "assemble", "connected", and "connection", etc., unless otherwise expressly specified and limited, are to be understood in the broadest sense, e.g., it may be a fixed connection or a detachable connection or an integral unit; it may be a direct connection or an indirect connection via an intermediate medium; it may be communication within two components or interaction between two components. Those skilled in the art may understand the specific meanings of the above terms in the embodiments of this application depending on the specific circumstances. First embodiment

[0039] The tape cassette in this embodiment is a consumable tape cassette for a label printer, the tape cassette comprising a housing and an internal structure arranged in the housing, and the internal structure is designed according to the prior art.

[0040] See Fig. 1, which shows a front view in a thickness direction of the tape cassette. As in Fig. 1, in the direction perpendicular to the thickness direction, the direction with the larger dimension on the tape cassette is a longitudinal direction of the tape cassette and the case, and the direction with the smaller dimension on the tape cassette is a width direction of the tape cassette and the case.

[0041] In the thickness direction of the Fig. 1, the tape cassette housing is provided with a tape drive shaft hole 100, a print tape reel hole 1001, an adhesive tape reel hole 1002, a carbon tape reel hole 1003, and a recycling reel hole 1004 distributed at various positions. The tape cassette housing includes a first corner 101 and a second corner 102, with the first corner 101 and the second corner 102 each located at diagonally opposite corners. As shown in Fig. 1, the first corner 101 is located in the upper left corner of the housing, while the second corner 102 is located in the lower right corner of the housing. The housing for the tape cartridge includes a width side 1031 and a length side 1032, where the width side 1031 refers to the outermost side in the width direction of the housing away from the first corner 101 and near the second corner 102, and the length side 1032 refers to the outermost side in the length direction of the housing away from the first corner 101 and near the second corner 102. That is, the second corner 102 forms the angle between the width side 1031 and the length side 1032.

[0042] The ribbon drive shaft hole 100 is located at a position on the housing near the first corner 101, and the ribbon drive shaft hole 100 is for mounting a ribbon drive shaft. The print ribbon roll hole 1001 is located at a position on the housing near the second corner 102, and the print ribbon roll hole 1001 is for mounting a print material roll. The adhesive tape roll hole 1002 is located at a position closer to a third corner of the housing, while the carbon ribbon roll hole 1003 is located at a position closer to a fourth corner of the housing, with the third corner being near the width side 1031 and the fourth corner being away from the width side 1031. As shown in Fig. 1, the third corner is located in the lower left corner of the housing, and the fourth corner is located in the upper right corner of the housing. The tape roll hole 1002 is for mounting a tape roll, and the carbon tape roll hole 1003 is for mounting a carbon tape roll. In addition, the recycling roll hole 1004 is located substantially in the center of the housing and between the tape roll hole 1002 and the carbon tape roll hole 1003, and the recycling roll hole 1004 is for mounting a recycling roll of a carbon tape.

[0043] In the width direction of the housing, a cantilever 1011 is provided on the side opposite the width side 1031. The starting end of the cantilever 1011 is located near the fourth corner, which is located at the Fig. 1, and the cantilever 1011 extends toward the first corner 101, that is, the cantilever 1011 extends sideways near the first corner 101. In the width direction, the cantilever 1011 is spaced from the recycling roller hole 1004 position to form a print head position 1006 for inserting a print head. In the length direction, the cantilever 1011 is spaced from the ribbon drive shaft hole 100 position to form a ribbon guide position connected to the print head position 1006, wherein the consumable is fed out from the interior of the cantilever 1011 and reaches the ribbon drive shaft hole 100 position after the ribbon guide position. The print head located in the print head position 1006 and a rubber roller can press against the consumable from opposite sides of the consumable in the ribbon guide position. Fig. 1, the side facing the paper surface is the side of the housing opposite a part of the side wall of the consumables location of the printer, that is, the side of the print head position 1006 facing the ribbon guide position.

[0044] See Fig. 1 and Fig. 2, an arm body 12 is provided at the second corner 102, and a total of four identification columns 17 are provided on and near the arm body 12, which serve to engage and interact with identification points of the printer. The housing is provided with a recess 110 that is open toward the width side 1031 of the housing, as shown in Fig. 1. The recess 110 penetrates both sides of the thickness of the housing in the thickness direction of the housing, as shown in Fig. 2, that is, the recess 110 penetrates the housing in the thickness direction of the housing. Due to the arrangement of the recess 110, the area adjacent to the recess 110 in the longitudinal direction of the housing forms the above-mentioned arm body 12, and the arm body 12 at the second corner 102 is located away from the center of the housing in the longitudinal direction of the housing relative to the recess 110.

[0045] See Fig. 1, in this embodiment, an extension end of the arm body 12 is provided with a bending part 122. In the width direction of the housing, the end of the arm body 12 connected to the main body of the housing is the starting end of the extension of the arm body 12, and the end of the arm body 12 remote from the main body of the housing on the width side 1031 is the extension end of the arm body 12. The bending part 122 extends from a base 121 of the arm body 12 toward the opening of the recess 110, and the parting line between the base 121 and the bending part 122 is in Fig. 1 is represented by a dashed line L (see Fig. 10), wherein the base 121 extends in the width direction of the housing, while the bent part 122 extends in the longitudinal direction of the housing. The bent part 122 does not mean that it is bent itself, but that it is bent relative to the base 121 of the arm body 12. That is, except for the bent part at the extension end, the part that extends straight in the width direction extends as the base 121 of the arm body 12.

[0046] In addition, the extension end of the arm body 12 is flush with the width side 1031, that is, the outer side of the extension end of the arm body 12 is flush with the width side 1031. In the prior art, the fact that the arm body is designed as a flat, thin-walled plate leads to problems with easy bending or even breakage of the wall if the arm body is too long. Therefore, the arm body in the prior art is relatively short and has a certain indentation with respect to the width side. However, this results in a lack of a structure defining and interacting with the printer at the corner of the ribbon cassette housing where the arm body is located, which impairs the stability of the ribbon cassette assembly.The improved arm body according to this utility model has sufficient bending strength so that even if the outer side of the extension end of the arm body 12 is flush with the width side, no problem of bending and deformation arises, and so that the arm body 12 can form a limiting structure located at a corner of the ribbon cassette, forming a good supporting fitting relationship with the printer, thereby improving the stability of the ribbon cassette mounting.

[0047] See Fig. 1 and Fig. 2, in this embodiment, one of the four identification columns 17 is arranged outside the arm body 12 (ie, one identification column 17 is arranged outside the area where the arm body 12 is located), two identification columns 17 are arranged on the base 121, and one identification column 17 is arranged on the bending part 122. Specifically, the arm body 12 includes a surface 141, which is a surface on the arm body 12 in the thickness direction of the housing for arranging the identification columns 17. The identification columns 17 are for contact with the identification points on the printer. The surface 141 extends beyond the initial end of the extension of the arm body 12, and the four cylindrical identification columns 17 each protrude from the surface 141 in the thickness direction of the housing.In this arrangement, the identification columns 17 can reduce the distance between the top of the identification columns 17 and the identification points of the printer in the thickness direction of the arm body, that is, reduce the distance between the top of the identification columns 17 and the surface 141. Thus, the identification columns 17 can have better bending strength with a shorter length.

[0048] See Fig. 3 and Fig. 4, the housing comprises a first shell 18 and a second shell 19 which are joined together in their own thickness direction (ie, in the thickness direction of the housing), wherein the first shell 18 is a one-piece molded plastic shell and the second shell 19 is also a one-piece molded plastic shell. The first shell 18 includes a first arm part 13 and the second shell 19 includes a second arm part 14, wherein the arm body 12 is formed by the butt connection of the first arm part 13 and the second arm part 14 in the thickness direction. In this embodiment, the first arm part 13 is designed as a wall plate and the second arm part 14 as a hollow shell structure.

[0049] As in Fig. 3, the wall plate comprises only a first wall extending along a plane perpendicular to the thickness direction of the housing.

[0050] In this application, the cavity shell structure comprises at least two walls pointing in different directions, wherein the plurality of walls are connected to form a shell and the plurality of walls form a cavity between them which is open at least in the thickness direction of the housing. As in Fig. 4, the cavity shell structure of the second arm part 14 in this embodiment includes, in addition to a second wall extending along a plane perpendicular to the thickness direction of the housing, a peripheral wall extending from an outer peripheral edge of the second wall toward the first arm part 13 in the thickness direction of the housing, the second wall being connected to the peripheral wall to form a shell, and a cavity open toward the first wall being formed between the second wall and the peripheral wall.

[0051] See Fig. 3, the first shell 18 further includes a first connecting pin 151 connected to a surface of the first wall of the first arm part 13 (ie, the first connecting pin 151 is arranged on the surface of the first wall of the first arm part 13) and extending toward the second arm part 14 in the thickness direction of the housing. See FIG. Fig. 4, the second shell 19 further includes a cylindrical first bore seat 150, a second connecting bore 152 formed in the first bore seat 150, and the first bore seat 150 is connected between the second wall and the peripheral wall of the second arm portion 14 (i.e., the first bore seat 150 is disposed between the second wall and the peripheral wall of the second arm portion 14). Furthermore, the first connecting pin 151 and the first bore seat 150 are connected at a linearly extending end of the base of the arm body 12.

[0052] When the first shell 18 and the second shell 19 are joined in the thickness direction of the housing, the first arm part 13 and the second arm part 14 are also joined in the thickness direction of the housing to form the arm body 12, wherein the first connecting pin 151 and the first connecting hole 152 of the first hole seat 150 are fitted together in the thickness direction, and the first connecting pin 151 and the first hole seat 150 are located inside the arm body 12. The first wall of the first arm part 13 covers the cavity opening of the second arm part 14, and the two form the arm body 12, in which the interior of the cavity is completely enclosed. The arm body 12 has both a sufficient thickness and curved, interconnected walls to ensure sufficient bending rigidity, and furthermore, the formation of the cavity can reduce the injection molding material.

[0053] See also Fig. 3 and Fig. 4, the housing includes a side wall having a first side wall 189 on the first shell 18 and a second side wall 199 on the second shell 19, wherein the first side wall 189 and the second side wall 199 abut and fit together to form the side wall, and the recess 110 is formed between the side wall and the arm body 12.

[0054] See Fig. 5 and Fig. 6, the width side 1031 of the housing is provided with a first rectangular portion 1091, and the length side 1032 of the housing is provided with a second rectangular portion 1092, wherein the side wall extends a distance in both the width direction of the housing and the length direction of the housing, that is, the side wall extends in the width direction of the housing and the length direction of the housing. The side wall extends between the first rectangular portion 1091 and the second rectangular portion 1092. Here, the housing includes a connecting portion 129, wherein the outer surface of the side wall, the connecting portion 129, and the arm body 12 are sequentially connected.

[0055] The outer surface of the side wall is formed as a wall surface (that is, defined as a wall surface) except for the area connected to the connecting portion 129, that is, the area on the outer surface of the side wall except for the area connected to the connecting portion 129 is formed as a wall surface.

[0056] Furthermore, the wall surface comprises a first wall surface 1891 on the surface side of the first side wall 189 and a second wall surface 1991 on the surface side of the second side wall 199.

[0057] See Fig. 1 and Fig. 6, the second wall surface 1991 extends along a circular arc line, and this circular arc line is concentric with the pressure belt roller bore 1001. Furthermore, cf. Fig. 5 and Fig. 6, a first end of the first wall surface 1891 and a first end of the second wall surface 1891 are both connected to the first rectangular portion 1091. Since the second rectangular portion 1092 is disposed only on the first shell 18, only a second end of the first wall surface 1891 is connected to the second rectangular portion 1092. In addition, see FIG. Fig. 1, in the projection in the thickness direction (i.e., in the orthogonal projection in the thickness direction), the first wall surface 1891 and the second wall surface 1991 are arranged on the outer circumference of the printing belt roller bore 1001 and are covered at an angle a greater than or equal to 45 degrees to make the curved surfaces more visually recognizable. Preferably, the angle a is 82 degrees. Second embodiment

[0058] The actual dimension of the specific model corresponding to the tape cassette in this embodiment is smaller than the actual dimension of the specific model corresponding to the tape cassette in the first embodiment.

[0059] See Fig. 7 and Fig. 8, unlike the first embodiment, in this embodiment, the arm body 22 extends in a straight line in the width direction of the housing and does not have the bent part 122 in the first embodiment. In this embodiment, both the first arm part 23 and the second arm part 24 have a hollow shell structure. In this embodiment, only one identification column 17 is connected to the second arm part 24.

[0060] In this embodiment, the first arm part 23 and the second arm part 24 are not connected to the first connecting pin and the first connecting hole (that is, the first arm part 23 and the second arm part 24 are not provided with the first connecting pin and the first connecting hole connected to each other), but the housing in this embodiment includes a second connecting pin 251 and a second hole seat 250 located outside the arm body 22 (that is, outside the area where the arm body 22 is located). Specifically, the first shell 18 includes a first leg portion 261, the first leg portion 261 being connected to the initial end of the extension of the first arm part 23, and the second connecting pin 251 extending in the thickness direction from the surface of the first leg portion 261 toward the second shell 19.The second shell 19 includes a second foot portion 262, the second foot portion 262 being connected to the initial end of the extension of the second arm part 24, and a second bore seat 250 being located in the cavity of the second foot portion 262 (i.e., a second bore seat 250 is arranged in the cavity of the area where the second foot portion 262 is located), and a second connecting bore 252 facing the first shell 18 is arranged in the second bore seat 250 (i.e., the second bore seat 250 is provided with a second connecting bore 252 having an opening facing the first shell 18). The second connecting pin 251 and the second connecting bore 252 are fitted together in the thickness direction of the housing. After connecting the first shell 18 and the second shell 19 to the housing, the second connecting pin 251 and the second connecting hole 252 are located inside the housing.When the tape cartridge is a smaller-sized model and both arm parts have a hollow shell structure, it is difficult to fit a larger hole seat due to the reduced space in the hollow of the arm parts. In this case, the second connecting pin 251 and the second hole seat 250 are provided at the first leg portion 261 and the second leg portion 262, respectively, which are sufficiently large and close to the arm body 22, and the connection between the first arm part 23 and the second arm part 24 can also be reinforced.

[0061] Furthermore, cf. Fig.9, in this embodiment, the first wall surface 289 on the surface side (ie on the outside) of the first side wall 189 of the first shell 18 comprises, from its first end near the width side 2031 to its second end near the length side 2032, successively arcuately connected first arc portion 2891, first surface portion 2892, second arc portion 2893 and second surface portion 2894. In this arrangement, the first wall surface 289 is continuously curved in the projection in the thickness direction (ie in the orthogonal projection in the thickness direction).

[0062] In other embodiments based on the first and second embodiments, the connecting pin and the connecting hole between the first shell and the second shell are reversed. Specifically, a plurality of connecting holes are arranged on the outer periphery of the first shell 18, that is, a plurality of connecting holes are arranged on the first shell 18 and are formed in a cylindrical shape; correspondingly, a plurality of connecting pins are arranged on the second shell 19, each corresponding to one of the connecting holes, wherein the outer diameter of the connecting pin is smaller than the inner diameter of the connecting hole, and the end of the connecting pin is provided with a chamfer to facilitate insertion. This arrangement improves the reliability of the connection between the first shell 18 and the second shell 19.

[0063] In other embodiments, the arm body is generally straight, and both the first arm part and the second arm part have a cavity shell structure, wherein a first connecting pin is arranged on the inner wall of the cavity of the first arm part and projects into the cavity, and a first bore seat is arranged on the inner wall of the cavity of the second arm part and mates with the first connecting pin, wherein the first connecting pin and the first bore seat are firmly connected to each other by the fitting. This structure fully utilizes the internal space of the arm body and increases the strength of the connecting structure.

[0064] In other embodiments, there is a predetermined distance in the width direction of the housing between the extension end of the arm body and the width side of the housing, with the predetermined distance extending in the longitudinal direction of the arm body. This arrangement both ensures the mounting distance and prevents possible interference between the components.

[0065] In other embodiments, the bent part can be inclined, with the inclined direction forming an acute angle to the longitudinal direction of the housing, and the transition area on the bent part being provided with an arcuate transition structure. This structure optimizes the stress distribution in the bent part.

[0066] In other embodiments, the arm body includes the bending part, but the bending part is not connected to the identification column, ie, no identification column is provided on the bending part.

[0067] In other embodiments, a snap fastener and a snap profile are provided on the outer side of the first arm part and the outer side of the second arm part, respectively, wherein the first arm part and the second arm part are connected by the snap fastener and the snap profile engaging. This connection method facilitates assembly and disassembly and provides good stability.

[0068] The present utility model also provides a printer comprising the above-described housing and a tape cassette.

[0069] Finally, it should be emphasized that the above-described embodiments merely represent preferred embodiments of the present utility model and are not intended to limit the present utility model. Those skilled in the art will recognize that the present utility model is susceptible to various changes and modifications, and any changes, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be considered within the scope of the present utility model. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] CH 202520076126.0

[0001]

Claims

[1] A housing comprising a first shell and a second shell connected to each other in a thickness direction of the housing, characterized by , that: the housing is provided with a recess that opens on a width side of the housing and that penetrates the housing in the thickness direction, wherein the housing comprises an arm body and at least one identification column, wherein the arm body is arranged adjacent to the recess in a longitudinal direction of the housing, and wherein the at least one identification column protrudes from the arm body; the first shell comprises a first arm part and the second shell comprises a second arm part, wherein the arm body is formed by the connection of the first arm part and the second arm part in the thickness direction; wherein at least one of the first arm part and the second arm part is designed as a hollow shell structure. [2] Housing according to claim 1, characterized by, that: one of the first arm part and the second arm part is designed as a hollow shell structure and the other of the first arm part and the second arm part is designed as a wall plate; wherein the housing further comprises a first connecting pin and a first bore seat; wherein the first connecting pin is arranged on one of the first arm part and the second arm part and the first bore seat is arranged on the other of the first arm part and the second arm part, wherein the first connecting pin and the first bore seat fit together in the thickness direction and are both arranged within the arm body. [3] Housing according to claim 1, characterized by , that: it further comprises a second connecting pin and a second bore seat; the first shell comprises a first foot portion connected to the initial end of the extension of the first arm part, and the second shell comprises a second foot portion connected to the initial end of the extension of the second arm part; wherein the second connecting pin is arranged on one of the first foot portion and the second foot portion, and the second bore seat is arranged on the other of the first foot portion and the second foot portion, wherein the second connecting pin and the second bore seat fit together in the thickness direction and are both arranged within the housing. [4] Housing according to one of claims 1 to 3, characterized by , that: an extension end of the arm body is provided with a bending part, wherein the bending part extends from a base of the arm body in a direction near the recess. [5] Housing according to claim 4, characterized by , that: the at least one identification column comprises a plurality of identification columns, wherein at least one of the plurality of identification columns protrudes from the bending part; the base extends in a width direction of the housing and the bending part extends in the longitudinal direction of the housing. [6] Housing according to one of claims 1 to 5, characterized by , that: the housing comprises a side wall, wherein the recess is formed between the side wall and the arm body, wherein the side wall extends in a / the width direction of the housing and in the longitudinal direction of the housing; the housing comprises a connecting portion, wherein the outer surface of the side wall, the connecting portion and the arm body are connected one after the other; and the area on the outer surface of the side wall, except for the area connected to the connecting portion, is formed as a wall surface. [7] Housing according to claim 6, characterized by , that: the width side is provided with a first rectangular section, wherein a first end of the wall surface is connected to the first rectangular section, and the length side of the housing is provided with a second rectangular section, wherein a second end of the wall surface is connected to the second rectangular section; in the orthogonal projection in the thickness direction at least part of the wall surface runs along a circular arc line, or at least part of the wall surface runs continuously curved. [8] Housing according to claim 7, characterized by , that: the housing is provided with a pressure roller bore, wherein in the orthogonal projection in the thickness direction the wall surface is arranged on the outer circumference of the pressure roller bore and covered at an angle greater than or equal to 45 degrees. [9] Tape cassette with a housing, characterized bythat the housing is designed as a housing according to one of claims 1 to 8. [10] Printer, characterized by that it comprises a tape cassette according to claim 9.

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