A cover for an electrical connection box

Abstract: To rationalize a display portion for displaying types and specification of fuses which is provided on a fuse cover. A necessary specification such as of wirings for fuses is inscribed in the form of an marked area 17 on a front or rear surface of a fuse cover 10 when the fuse cover 10 is molded. If the specification of the fuses or the like to be mounted differs from the above inscription, a label having a suitable inscription is adhered to provide a necessary display as well as to conceal the marked area. In this case, the label 25 is adhered to the upper surface of the marked area if the marked area is formed on the front surface, whereas it is adhered to the flat surface on the front surface if the marked area is formed on the rear surface.

Description: The present invention relates to a cover for an electrical connection box used for an automotive wiring harness and, particularly to an inscription portion for inscribing a necessary specifications such as of wirings on a cover of a receptacle of fuses, relays or connectors mounted in an electrical connection box. In an electrical connection box, a fuse cover 1 is fitted on a fuse receptacle as shown in FIG. 7 after fuses are mounted. To the upper surface of the fuse cover 1 is adhered a label 2 on which a necessary specification such as of wirings for the respective accommodated fuses is inscribed. Specifically, in the case that a total of 21 fuses, three columns times seven rows, are mounted in the fuse box, the label 2 is so sectioned in accordance with the array of fuses such that sections 2b are arrayed in three columns and seven rows. Necessary inscriptions 2b such as of wirings for the fuses corresponding to the respective sections 2a are provided. The label 2 is made of a resin sheet and has an adhesive applied to the rear surface thereof so that it can be adhered to the cover 1. If the labels 2 are adhered to the respective covers 1, an operation of adhering the labels 2 to all covers 1 is required. This operation awfully takes time and labor. Particularly, the same kind of labels need to be adhered for the same type of automotive vehicles. In the case that there are a great number of automotive vehicles of the same type, there is a demand for the rationalization of the label adhering operation. Such a kind of cover is disclosed in US-PS 4 801 035, wherein a label is provided on the protection cover showing constructions and functions. Furthermore GB-PS 1 468 693 discloses to provide an identification plate carrying particulars of the circuits protected by the fuses on the fuse and distributing box. Also DE-U-76 33 037 discloses a junction or distribution box carrying a designation label for identifying the electric wiring. The present invention was develcped in view of the above demand and an object thereof is to adhere labels only for a small number of automotive vehicles having different specifications because of different destinations and options while make it unnecessary to adhere labels for a great number of automotive vehicles of the same type. This object is solved according to the invention by a cover according to claim 1. Preferred embodiments of the invention are subject of the dependent claims. According to the invention there is provided a cover for an electrical connection box for mounting electrical devices, such as fuses, relays and/or connectors, wherein an inscription of a first specification such as of wirings for the electrical devices is provided in the form of at least one marked area on a surface of the cover, and if the specification of the electrical devices differs from the first inscription, a label having a second inscription is adhered to a first surface of the marked area. According to a preferred embodiment, the marked area is provided in a recess formed in the cover. Preferably, the label comprises an opaque resin film printed with an inscription and/or is so adhered as to substantially conceal the first surface of the marked area, in particular a surface of the recess. Further preferably, the marked area is provided on the surface of the cover when the cover is molded. According to a further preferred embodiment, the marked area is provided on a front surface of the cover and/or wherein the first surface of the marked area, on which the label is adhered to, is an upper surface. Alternatively, the marked area may be provided on a rear surface of the cover and/or the label is adhered to a front surface of the cover. According to a further preferred embodiment, the inscription provided on the rear surface of the cover corresponds to the specification of a main grade, and wherein the label is adhered to the front surface of the cover for the grade other than the main grade. Preferably, the marked surface is engraved, molded, melted, chemically etched and/or mechanically etched. According to a still further preferred embodiment, there is provided a cover to be mounted on the upper surface of a receptacle of an electrical connection box for mounting fuses, relays or connectors, wherein: an inscription of a necessary specification such as of wirings for the fuses, relays or connectors is provided in the form of an etched area on the front surface of the cover when the cover is molded, and if the specification of the fuses or the like differs from the inscription, a label having a corresponding inscription is adhered to the upper surface of the etched area. The etched area is provided in advance in the case that there are a great number of vehicles of the same type and in particular that many fuses having the same specification are required. The label is adhered in the case that there are a small number of vehicles of the same type due to a difference in the destination and option. Accordingly, if the etched area is provided in the cover when the cover is molded, it is not necessary to adhere the label. Particularly, if there are a great number of vehicles of the same type, the provision of the etched area can considerably rationalize an operation of displaying the specification for the fuses as compared to a case where the same labels are adhered to the covers. On the other hand, if there are a small number of vehicles of the same type, the provision of special covers at the time of molding leads to an increased number of parts. In this case, by adhering the label to the etched area, the etched area having a different inscription can be concealed at the same time a necessary inscription can be provided. As is clear from the above description, a great number of covers to which the same labels were adhered according to the prior art are molded while the etched areas are provided on their front surfaces. Accordingly, the labels need not be adhered, with the result that the operation can be considerably rationalized. On the other hand, in the case that there are a small number of vehicles of the same type, covers provided with the etched areas providing the inscription of the specification different from that of those vehicles are used instead of providing special covers, and the labels are adhered to the etched areas to conceal the different etched area and to provide a necessary inscription. Therefore, the kinds and the number of necessary labels can be reduced, reducing the cost for the labels. The etched area may be provided in a recess formed in the cover, and the label may be an opaque resin film printed with an inscription and be so adhered as to conceal the upper surface of the recess. If the etched area is provided in the recess as in a relief, the label can be easily positioned and is unlikely to be peeled off if it is so adhered as to be fitted int the recess. Accordingly, the etched area is provided in the recess and the label is so adhered as to be fitted in the recess. Thus, the label can be easily positioned and the fuses or the like can be accurately corresponded with the inscription of the label. Further, since the label is positioned in the recess, it is unlikely to be peeled off. According to a further preferred embodiment of the invention, there is provided a cover to be mounted on the upper surface of a receptacle of an electrical connection box for mounting fuses, relays or connectors, wherein: an inscription of a necessary specification such as of wirings for the fuses, relays or connectors is provided in the form of an etched area on the rear surface of the cover when the cover is molded, and if the specification of the fuses or the like differs from the inscription, a label is adhered to the front surface of the etched area. If the etched area is provided on the rear surface of the cover as above, the label can be smoothly adhered to the flat front surface of the cover. The inscription provided on the rear surface of the cover may correspond to the specification of a main grade, and the label may be adhered to the front surface of the cover for the grade other than the main grade. Accordingly, the specification for the main grade is inscribed on the rear surface of the cover similar to the cover according to the previous embodiment, the labels need not be adhered to the covers for the main grade. If the specification for the main grade is inscribed in the form of the etched area, thereby making the label therefor unnecessary, the operation can be considerably rationalized. Although the labels are adhered to the front surfaces of the covers for the grades other than the main grade , the operability is not affected since there are a small number of vehicles of the other grades. Further, since the front surface of the cover is flat, the label can be easily adhered thereto. These and other objects, features and advantages of the present invention will become more apparent upon a reading of the following detailed description and accompanying drawings in which: FIG. 1(A) is a plan view of a cover according to a first embodiment of the invention, FIG. 1(B) is a section along line B-B of FIG. 1(A), and FIG. 1(C) is an enlarged view of an essential portion of FIG. 1(B), FIG. 2 is a schematic section of an electrical connection box fitted with the cover, FIG. 3 is a plan view of a label, FIG. 4(A) are a plan view the cover having the label adhered thereto, and FIG. 4(B) is a section of an essential portion of the cover, FIG. 5(A) is a bottom view of a cover according to a second embodiment, and FIG. 5(B) is an enlarged section of an essential portion of this cover, FIG. 6 is a section of the cover according to the second embodiment in its used state, and FIG. 7 is a plan view of a prior art cover. FIGS. 1(A) , 1(B) , 1(C) and 4 show a fuse cover (hereinafter, "cover") 10 according to a first embodiment of the invention. As shown in FIG. 2, the cover 10 is lockingly fitted on the upper surface of a fuse receptacle 12 of an electrical connection box comprising, in particular constructed by a junction box 11 by lock members 13, 14. In the upper surface of the cover 10, a substantially large recess 15 which is slightly smaller than the outer shape of the upper surface is formed. Within the recess 15 excluding a periphery 16, section lines 17a defining 21 sections and necessary inscriptions 17b within the respective section lines 17a are formed by grooves 20 formed in the bottom surface of the recess 15 as shown in FIG. 1(C). More specifically, the bottom surface excluding the grooves 20 forming the section lines 17a and the inscriptions 17b project as in a relief. An A marked or etched area 17 including the lines 17a and the inscriptions 17b is formed e.g. by engraving, molding, melting, chemically etching and/or mechanically etching, in particular when the cover 10 is molded. The cover 10 formed with the marked area 17 for inscribing the specification for the fuses is used for the same type of mass-produced vehicles. In the case that fuses to be mounted in the same fuse receptacle 12 differ due to a different destination or option and there is only a small number of vehicles of this different type, a label 25 shown in FIG. 3 is so adhered as to conceal the marked area 17 as shown in FIGS. 4(A) and 4(B). The label 25 is of the dimensions that it is exactly fitted with the bottom surface of the recess 15 and its periphery 26 conforms to the periphery 16 of the recess 15, such that the recess 15 can be substantially entirely concealed by the label 25. The label 25 is made of a resin film, which is in particular opaque, and has an adhesive 27 applied to the rear surface thereof. The label 25 is formed by printing an inscribed area 28 including section lines 28a and inscriptions 28b corresponding to the section lines 17a and the inscription 17b of the marked area 17 on an opaque film. In this embodiment, the film is white and the inscribed area 28 is printed in black. The use of the above cover 10 obviates the need for adhering labels to the cover 10 for the same type of mass-produced vehicles, and-necessitates an operation of adhering the labels 25 to the covers 10 only for a small number of vehicles. Accordingly, the label adhering operation can be performed by a considerably reduced number of times and the number and types of labels can be reduced. FIGS. 5(A), 5(B) and 6 show a second embodiment. A marked or etched area 17' including lines 17a' and inscriptions 17b' as in a relief or regress and/or projection is formed e.g. by engraving, molding, melting, chemically etching and/or mechanically etching in the rear surface of a cover 10', in particular when the cover 10' is molded. The marked area 17' corresponds to the specification of vehicles of a main grade. On the other hand, in the front surface of the cover 10', there is formed a substantially large and shallow recess 15' which is slightly smaller than the outer shape of the front surface of the cover 10' as shown in FIG. 5(B). If the cover 10' is mounted on a junction box specified for the main grade, it is used as it is without adhering a label to its front surface. On the other hand, if the cover 10' is mounted on a junction box specified for the other grade, a label 25' inscribing the corresponding specification is adhered to the recess 15' on the front surface of the cover 10'. Since the cover according to the second embodiment has no marked area on its front surface, if it is used for the specification of the grade other than the main grade, the label is merely adhered to the front surface without confirming the inscription of the marked area on the rear surface. This improves a label mounting operability. LIST OF REFERENCE NUMERALS 10 Cover 15 Recess 17 marked area 25 Label 28 Inscribed Area

Claims: A cover for an electrical connection box for mounting electrical devices, such as fuses, relays and/or connectors, wherein: an inscription (17b; 17') of a first specification such as of wirings for the electrical devices is provided in the form of at least one marked area (17; 17') on a surface of the cover (10; 10'), and wherein the cover further comprises a label (25; 25') having a second inscription and being adhered to a first surface of the marked area (17; 17'), in case the specification of the electrical devices differs from the first inscription. A cover according to claim 1, wherein the marked area (17; 17') is provided in a recess (15; 15') formed in the cover (10; 10'). A cover according to one or more of the preceding claims, wherein the label (25; 25') comprises an opaque resin film printed with an inscription and/or is so adhered as to substantially conceal the first surface of the marked area (17; 17'), in particular a surface of the recess (15; 15'). A cover according to one or more of the preceding claims, wherein the marked area (17; 17') is provided on the surface of the cover (10; 10') when the cover (10; 10') is molded. A cover according to one of the preceding claims, wherein the marked area (17) is provided on a front surface of the cover (10) and/or wherein the first surface of the marked area (17; 17'), on which the label (25) is adhered to, is an upper surface. A cover according to one or more of the preceding claims 1 to 4, wherein the marked area (17') is provided on a rear surface of the cover (10') and/or the label (25') is adhered to a front surface of the cover (10'). A cover according to claim 6, wherein the inscription provided on the rear surface of the cover (10') corresponds to the specification of a main grade, and wherein the label (25') is adhered to the front surface of the cover (10') for the grade other than the main grade. A cover according to one or more of the preceding claims, wherein the marked surface (17; 17') is engraved, molded, melted, chemically etched and/or mechanically etched.

Inventors: NAKAMURA MASAYOSHI, ODA AKIHIRO, NAKAMURA, MASAYOSHI, ODA, AKIHIRO, Nakamura, Masayoshi, c/o Sumimoto Wiring Syst.Ltd., Oda, Akihiro, c/o Sumimoto Wiring Syst.Ltd.
Applicants: SUMITOMO WIRING SYSTEMS, SUMITOMO WIRING SYSTEMS, LTD.
Application year: 1996
Main classification: H02G3
IPC codes: G09F3, H01H85, H02G3, H05K5