US20040108618A1 - Front-cover for communication equipment and method for manufacturing the front-cover - Google Patents
Front-cover for communication equipment and method for manufacturing the front-cover Download PDFInfo
- Publication number
- US20040108618A1 US20040108618A1 US10/722,641 US72264103A US2004108618A1 US 20040108618 A1 US20040108618 A1 US 20040108618A1 US 72264103 A US72264103 A US 72264103A US 2004108618 A1 US2004108618 A1 US 2004108618A1
- Authority
- US
- United States
- Prior art keywords
- display window
- transparent display
- external pad
- button
- placing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0279—Improving the user comfort or ergonomics
- H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14688—Coating articles provided with a decoration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1671—Making multilayered or multicoloured articles with an insert
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/88—Processes specially adapted for manufacture of rectilinearly movable switches having a plurality of operating members associated with different sets of contacts, e.g. keyboards
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0249—Details of the mechanical connection between the housing parts or relating to the method of assembly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14237—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14688—Coating articles provided with a decoration
- B29C2045/14713—Coating articles provided with a decoration decorations in contact with injected material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0026—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3431—Telephones, Earphones
- B29L2031/3437—Cellular phones
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2229/00—Manufacturing
- H01H2229/044—Injection moulding
- H01H2229/047—Preformed layer in mould
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Casings For Electric Apparatus (AREA)
- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
- Telephone Set Structure (AREA)
Abstract
A front cover for a communication equipment is described which comprises an external pad having a transparent display window placing portion and button placing portions which are projected outwardly from an outer surface of the external pad; a housing which is integrally placed at an inner surface of the external pad and has a transparent display window through hole corresponding to the transparent display window placing portion and button through holes corresponding to the button placing portions; a transparent display window which is integrally placed at the transparent display window placing portion of the external pad; and buttons which are integrally placed at the button placing portions of the external pad. The transparent display window, the housing and the buttons can be molded on the inner surface of the external pad by injecting synthetic resins onto each of placing portions thereof.
Description
- This application is a divisional application of U.S. Pat. No. 09/809,120, filed on Mar. 15, 2001, which is herein incorporated by reference in its entirety.
- 1. Field of the Invention
- The present invention relates to a front cover for a communication equipment, and in particular, to a front cover for a communication equipment having an external pad to prevent invasion of water or impurities thereinto. Also, the present invention relates to a method for manufacturing such a front-cover for a communication equipment.
- 2. Description of the Related Art
- With a rapid development of a communication technique, the communication equipment is widely used. The communication equipment that is being generally used is portable communication equipment such as a portable phone and a PCS (personal communication system).
- Such a communication equipment has a front cover as shown in FIG. 1. The front cover is formed by combining a front housing1 having button through holes for numeral, character or function buttons and a transparent display window placing portion, a
keypad 3 having a plurality of buttons, and atransparent display window 2 having a transparent window. The outer surface of the front cover can be decorated by printing pictures or attaching a sticker if a user needs. - To prevent water or particles from going through the combining area of the components, the front cover for a portable communication equipment manufactured as described above has a packing in the combining area. However, with the transformation of the packing, there exists a problem that water or particles may go through the combining area of the components.
- Further, since the front cover is manufactured by combining a plurality of components, it requires a complicated process as well as lots of instruments and labor, thus deteriorating the productivity.
- It is, therefore, an object of the present invention to provide a front cover for a communication equipment which can be easily manufactured and can prevent invasion of water or impurity into the inside thereof.
- It is another object of the present invention to provide a method for manufacturing a front cover for a communication equipment.
- To achieve the above objects, there is provided a front cover for a communication equipment having an external pad. The front cover comprises an external pad having a transparent display window placing portion and button placing portions which are projected outwardly from an outer surface of the external pad; a housing which is integrally placed at an inner surface of the external pad and has a transparent display window through hole corresponding to the transparent display window placing portion and button through holes corresponding to the button placing portions; a transparent display window which is integrally placed at the transparent display window placing portion of the external pad; and buttons which are integrally placed at the button placing portions of the external pad.
- Also, there is provided a method for manufacturing a front cover for a communication equipment. The method comprises printing numbers, characters or figures on a thin film; forming an external pad of the thin film to have a transparent display window placing portion and button placing portions, corresponding to the front cover; inserting the external pad into a mold; placing a transparent display window and a housing integrally on an inner surface of the external pad; and placing buttons on the button placing portions of the external pad.
- The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:
- FIG. 1 is a perspective view showing an example of a front cover for communication equipment according to a prior art;
- FIG. 2 is a partially sectional perspective view showing an embodiment of a front cover for communication equipment having a keypad united therein according to the present invention;
- FIG. 3 is a cross sectional view taken along the line A-A of FIG. 2; and
- FIG. 4 is a flow chart to explain one embodiment of manufacturing process of a front cover for a communication equipment according to the present invention.
- A preferred embodiment of the present invention will be described herein below with reference to the accompanying drawings.
- As shown in the FIGS. 2 and 3, according to the preferred embodiment of the present invention, the front cover for a communication equipment comprises an
external pad 10 to be placed at the most outer surface, ahousing 20 for maintaining a shape,buttons 30 for inputting information and atransparent display window 40 for displaying information. - Preferably, the external pad is a seamless one-piece form. The
external pad 10 is made of a thin film, preferably, of a synthetic resin, more preferably, of a transparent synthetic resin. Most preferably, the synthetic resin has an elasticity enough to provide the external pad with a certain degree of impact absorbance. Any synthetic resin generally available in the art can be used. - Figures, pictures or characters are preferably printed on one side of a thin film. Button-placing
portions 12 in which buttons are placed and a transparent display window-placingportion 11 in which a transparent display window is placed are folded and projected from an outer surface of the external pad. The transparent displaywindow placing portion 11 is transparent so that a user can see through the information displayed on a display unit of the communication equipment. Numbers for inputting telephone number, characters for inputting character information or figures for indicating functions are printed in thebutton placing portions 12. The remaining portions other than the button-placingportions 12 and the transparent display window-placingportion 11 can be printed with pictures or figures or can be colored according to the taste of a user. - A
groove 13 is formed around thebutton placing portions 12 with a predetermined gap so that thebuttons 30 integrally placed at the inner surface of theexternal pad 10 can be smoothly moved up and down. However, thetransparent display window 40 integrally placed at thedisplay placing portion 11 is not moved but fixed by forming only an outward or inward folding line without any groove. - The
transparent display window 40 and thebuttons 30 are placed at the transparent display window-placingportion 11 and the button-placingportions 12, respectively. Thetransparent display window 40 is preferably of a plate shape having a predetermined thickness, and can be formed by injection molding synthetic resins on the transparent display window-placingportion 11. Thetransparent display window 40 is preferably transparent so that a user can check the information displayed on a display unit of the communication equipment. Thebuttons 30 which push the electric contact points formed at a circuit substrate of the communication equipment can be formed by injecting synthetic resins on thebutton placing portions 12. - The
external pad 10 is made of a thin film or plate as described above and thehousing 20 is placed at the inner surface thereof, i.e., at the surface facing the interior of the communication equipment to maintain the shape of theexternal pad 10. - A transparent display window through
hole 22 through which thetransparent display window 40 passes and button throughholes 21 through which thebuttons 30 pass are formed at thehousing 20. The button throughhole 21 is formed to have a wider width than thebutton 30 so that thegroove 13 formed at theexternal pad 10 can be inserted together with thebutton 30. - The numbers, characters or figures are preferably formed on the inner surface of the
external pad 10, i.e., on the surface that contacts with thehousing 20, so that they cannot be erased by the repeated contact such as the frequent pushing of the button. - Method for manufacturing such a front cover for a communication equipment as described above will be described herein below with reference to FIG. 4 and FIGS. 2 and 3.
- Preferably, a transparent thin film made of synthetic resin is provided in a one-piece form, and numbers, characters or figures are printed on the thin film (S1). Preferably, such numbers, characters or figures are printed on an inner surface of the film. The printed thin film is inserted into a mold corresponding to the front cover for the communication equipment, is pressed so that a transparent display window placing portion and button placing portions are formed to the thin film (S2). The thin film is taken out of the mold and the edges of the thin film are cut and finished to form the external pad10 (S3). The
external pad 10 is inserted and placed into a mold (S4), and the mold is preferably made of a metal. Then thetransparent display window 40 and thehousing 20 are respectively placed on an inner surface of theexternal pad 10 by injecting synthetic resins to the transparent displaywindow placing portion 12 and the inner surface of theexternal pad 10 using a injection molding machine (S5). Also, each ofbuttons 30 is placed on the inner surface of theexternal pad 10 by injecting synthetic resins to the button placing portions 11 (S6). Thereafter, of course, processing steps such as coating, drying and inspecting are applied on theexternal pad 10 in order to obtain a finished front cover. - The
transparent display window 40, thehousing 20 and thebuttons 30 can be formed in several ways. For example, after thetransparent display window 40 is formed, thehousing 30 is formed by injection molding so that the synthetic resin for forminghousing 20 is prevented from flowing into thetransparent display window 40. Then, thebuttons 30 are formed by injection molding through each of injection gates of an injection molding machine. Alternatively, thehousing 20 is molded and then thetransparent display window 40 is molded. This type of injection molding is called as “double injection molding”. Alternatively, thetransparent display window 40 and thehousing 20 are molded at the same time and then thebuttons 30 are molded. This type of injection molding is called as “triple injection molding”. - Preferably, the
transparent display window 40 is molded on the transparent displaywindow placing portion 11, each ofbuttons 30 is molded on thebutton placing portions 12, and thehousing 20 is molded on the inner surface other than the transparent display window and thebutton placing portions external pad 10. - Alternatively, the housing is pre-made and attached on the inner surface of the external pad by an adhesive.
- According to the front cover for the communication equipment having an external pad of the present invention, since the external pad covers the front surface of the communication equipment and there is no through hole on the front cover, it is possible to prevent water or particles from going into the communication equipment. In addition, pictures or figures printed on the inner surface of the external pad provide the communication equipment with a smooth outer surface. And, the lifetime of the communication equipment is extended because the external pad can also function as a protect layer.
- While the invention has been shown and described with reference to a certain preferred embodiment thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. Method for manufacturing a front cover for a communication equipment, comprising:
printing numbers, characters or figures on a thin film;
forming an external pad of the thin film corresponding to the front cover to have a transparent display window placing portion and button placing portions;
inserting the external pad into a mold;
placing a transparent display window and a housing integrally on an inner surface of the external pad; and
placing buttons on the inner surface of the button placing portions of the external pad.
2. The method as claimed in claim 1 , wherein the numbers, characters or figures are printed on an inner surface of the thin film.
3. The method as claimed in claim 1 , further comprising forming a groove for a smooth movement of the button around the button placing portions.
4. The method as claimed in claim 1 , wherein the transparent display window, the housing and the buttons are injection-molded on the inner surface of the external pad.
5. The method as claimed in claim 4 , wherein the transparent display window is injection-molded on the inner surface of the transparent display window placing portion.
6. The method as claimed in claim 4 , wherein each of buttons is injection-molded on the inner surface of the button placing portions.
7. The method as claimed in claim 4 , the housing is injection-molded on the inner surface of the external pad other than the transparent display window placing portion and the button placing portions.
8. The method as claimed in claim 1 , the housing is bonded on the inner surface of the external pad by an adhesive.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/722,641 US20040108618A1 (en) | 2000-03-16 | 2003-11-26 | Front-cover for communication equipment and method for manufacturing the front-cover |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2000-13253 | 2000-03-16 | ||
KR1020000013253A KR100359519B1 (en) | 2000-03-16 | 2000-03-16 | Front-cover for communication equipment |
US09/809,120 US6839430B2 (en) | 2000-03-16 | 2001-03-15 | Front-cover for communication equipment and method for manufacturing the front-cover |
US10/722,641 US20040108618A1 (en) | 2000-03-16 | 2003-11-26 | Front-cover for communication equipment and method for manufacturing the front-cover |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/809,120 Division US6839430B2 (en) | 2000-03-16 | 2001-03-15 | Front-cover for communication equipment and method for manufacturing the front-cover |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040108618A1 true US20040108618A1 (en) | 2004-06-10 |
Family
ID=19655683
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/809,120 Expired - Fee Related US6839430B2 (en) | 2000-03-16 | 2001-03-15 | Front-cover for communication equipment and method for manufacturing the front-cover |
US10/722,641 Abandoned US20040108618A1 (en) | 2000-03-16 | 2003-11-26 | Front-cover for communication equipment and method for manufacturing the front-cover |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/809,120 Expired - Fee Related US6839430B2 (en) | 2000-03-16 | 2001-03-15 | Front-cover for communication equipment and method for manufacturing the front-cover |
Country Status (5)
Country | Link |
---|---|
US (2) | US6839430B2 (en) |
KR (1) | KR100359519B1 (en) |
CN (1) | CN1146210C (en) |
DE (1) | DE10112006A1 (en) |
WO (1) | WO2001069804A1 (en) |
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US20120258279A1 (en) * | 2010-01-25 | 2012-10-11 | Koninklijke Philips Electronics N.V. | Method of producing a device comprising at least one displaceable operating member as well as such a device |
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US9545140B1 (en) | 2015-07-19 | 2017-01-17 | Otter Products, Llc | Protective enclosure for an electronic device |
US9960521B2 (en) | 2016-02-24 | 2018-05-01 | Otter Products, Llc | Connector for fluidly sealing an aperture of a protective case |
US10420406B2 (en) | 2017-02-16 | 2019-09-24 | Otter Products, Llc | Protective cover for electronic device |
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Also Published As
Publication number | Publication date |
---|---|
KR20000049437A (en) | 2000-08-05 |
DE10112006A1 (en) | 2001-09-27 |
US6839430B2 (en) | 2005-01-04 |
WO2001069804A1 (en) | 2001-09-20 |
US20010022840A1 (en) | 2001-09-20 |
CN1314761A (en) | 2001-09-26 |
KR100359519B1 (en) | 2002-10-31 |
CN1146210C (en) | 2004-04-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |