CA2109976C - Casing for a miniature portable apparatus - Google Patents
Casing for a miniature portable apparatusInfo
- Publication number
- CA2109976C CA2109976C CA002109976A CA2109976A CA2109976C CA 2109976 C CA2109976 C CA 2109976C CA 002109976 A CA002109976 A CA 002109976A CA 2109976 A CA2109976 A CA 2109976A CA 2109976 C CA2109976 C CA 2109976C
- Authority
- CA
- Canada
- Prior art keywords
- ribs
- cover
- box
- shape
- shaped
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems, e.g. audible personal calling systems
- G08B3/10—Audible signalling systems, e.g. audible personal calling systems using electric transmission; using electromagnetic transmission
- G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
- G08B3/1016—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
- G08B3/1025—Paging receivers with audible signalling details
- G08B3/1058—Pager holders or housings
-
- 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
- H04B1/06—Receivers
- H04B1/08—Constructional details, e.g. cabinet
- H04B1/086—Portable receivers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0086—Casings, cabinets or drawers for electric apparatus portable, e.g. battery operated apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/271—Lids or covers for the racks or secondary casings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
- Structure Of Receivers (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A casing for a pager or similar miniature portable apparatus is made up of a box-like case and a cover removably fitted on the case. The case is provided with ribs having a generally I-shaped cross-section and ribs having a generally L-shaped cross-section. The I- and L-shaped ribs alternate with each other. The cover is provided with ribs having a generally U-shaped cross-section and recesses which mate with the I-shaped ribs and the L-shaped ribs of the case, respectively.
Description
6 210gg7~
I
CASING FOR A MINIATURE PORTABLE APPARATUS
BACKGRO~JND OF THE INVENTION
The present invention relates to the structure of a casing for a radio pager, radio telephone or similar miniature portable apparatu s .
Portable apparatuses which are miniature and light weight are extensively used today and include radio pagers and radio telephones. This kind of apparatus has a casing accommodating various functioning parts. The casing h a s customarily been made up of a box-line case storing the functioning parts, and a cover covering the open end of the case.
To couple the case and cover, a rib provided on the case and a rib provided on the cover are caused to mate with each other, and then the case and cover are fastened by, for example, a screw .
The problem with the conventional casing described above is that when a torsional load or similar unexpected load acts on the casing, the cover is apt to shift relative to the casing o r even to separate from the casing.
~ 2 1 0 9 9 7 6 SUMMARY OF THE INVENTION
It ls, therefore, an ob~ect of the present lnventlon to provlde a caslng for a mlnlature portable apparatus whlch prevents a case and a cover thereof from dlsplaclng or separatlng from each other even when an unexpected load acts thereon.
A caslng for a mlnlature portable apparatus of the present lnventlon has a box-llke case open at one end thereof and havlng a plurallty of flrst rlbs and a plurallty of second rlbs arranged on and along one of four sldes deflnlng the square open end of the case. The flrst rlbs and the second rlbs alternate wlth each other, and each has a partlcular cross-sectlon. A cover has a plurallty of thlrd rlbs and a plurallty of fourth rlbs conflgured and posltloned to mate wlth the flrst rlbs and the second rlbs, respectlvely.
In accordance wlth the present lnventlon, there ls provlded a caslng for a mlnlature portable apparatus, comprlslng: a box-llke case open at one end thereof and comprlslng a plurallty of flrst rlbs and a plurallty of second rlbs arranged on and along one of four sldes deflnlng a square open end of sald case, sald plurallty of flrst rlbs and sald plurallty of second rlbs alternatlng wlth each other and each havlng a dlfferent partlcular cross-sectlon, sald flrst and second rlbs havlng predetermlned contours; and a cover comprlslng a plurallty of thlrd rlbs and a plurallty of fourth rlbs, sald thlrd and fourth rlbs havlng contours whlch are conflgured and posltloned to complement, embrace and snugly clasp the predetermlned contours of sald plurallty of first rlbs and sald plurallty of second rlbs, respectlvely.
; 2 ~ O9g7 ~
In accordance wlth the present lnventlon, there ls further provlded a mlnlature houslng comprlslng a box and a cover; sald box and cover havlng complementary perlpheral contours so that they flt together to form a closed contalner;
two types of lnterlocklng rlb connectors alternately dlstrlbuted along sald perlpheral contours for holdlng sald cover on sald box; one of sald types of sald lnterlocklng rlb connectors havlng a flrst cross-sectlonal shape wlth complementary rlb parts at sald perlpheral contours on sald cover and sald box, respectlvely, for reslstlng horlzontal stress, the other of sald types of sald lnterlocklng rlb connectors havlng a second dlfferent cross-sectlonal shape wlth complementary rlb parts at sald perlpheral contours on sald covers and sald box, respectlvely, for reslstlng vertlcal stress.
BRIEF DESCRIPTION OF THE DRAWINGS
The above and other ob~ects, features and advantages of the present lnventlon wlll become more apparent from the followlng detalled descrlptlon taken wlth the accompanylng drawlngs ln whlch:
FIG. 1 ls an exploded perspectlve vlew of a caslng embodylng the present lnventlon;
FIG 2A ls a perspectlve vlew of a cover formlng part of the embodlment, as seen from the rear;
- 2a --, 2 1 0 g 9 7 6 FIG. 2B is a fragmentary enlarged view of ribs provided on the cover;
FIGS. 3A and 3B are sections along lines A-A and B-B of FIG. 1, respectively;
FIGS. 4A and 4B are views demonstrating how to set up the engaged conditions shown in FIGS. 3A and 3B;
FIG. 5 is a fragmentary perspective view representative o f the mating condition of the embodiment;
FIGS. 6A and 6B are sections showing an alternative embodiment of the present invention;
FIGS. 7A and 7B are views demonstrating how to set up engaged conditions shown in FIGS. 6A and 6B;
FIG. 8A is an exploded perspective view of a conventional casing; and FIG. 8B is a section along line C-C of FIG. 8A.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
To better understand the present invention, a brief reference will be made to a conventional casing for a radio 2 0 pager or similar mini~tllre portable apparatus, shown in FIGS. 8A and 8B. As shown in FIG. 8A, the casing is made up of a box-like case 21 and a cover 22 covering the open top of the case 21 and separable from the case 21. The case 21 is formed with a rib 23 having a generally I-shaped cross-section at one 2 5 end thereof. As shown in FIG. 8B, the cover 22 is provided with - ~" 2 1 0997 6 a rib 24 having a generally U-shaped cross-section on the rear thereof. The rib 24 is so positioned as to mate with the rib 23.
To fit the cover 22 on the case 21, the cover 22 is brought into the case 21 obliquely downward until the edge of the rib 24 5 abuts against the rib 23. Then, the cover 22 is rotated downward to cause the rib 24 to receive the rib 23 therein, as shown in FIG. 8B. Subsequently, the cover 22 is fastened to the case 21 by a screw 6 at the end thereof remote from the ribs 2 1 and 23. In FIG. 8A, the reference numeral 5 design~tes a battery 1 0 cover.
As stated above, the case 21 and cover 22 are coupled simply with their I-shaped rib 23 and U-shaped rib 24 mating with each other. This brings about a problem that when a torsional load or similar unexpected load acts on the casing, t h e 1 5 cover 22 is displaced or even removed from the case 21, as discussed earlier.
Referring to FIG. 1, a casing embodying the present invention is shown As shown, the casing has a box-like case 3 and a cover 4 covering the open top of the case 3 and separable 2 0 from the case 3. The case and cover 4 are coupled together with ribs thereof, which will be described, mating with each other, thereby forming the casing. A battery cover 5 is removably fitted on the cover 4. The cover 4 is formed with a hole 4a to be fastened to the case 3 by a screw 6.
~ 2 1 0 9 9 7 B
As shown in FIGS. 1, 2A and 2B, the case 3 has a plurality of ribs 1 having a substantially I-shaped cross-section, and a plurality of ribs 2 having a substantially L-shaped cross section. The ribs 1 and the ribs 2 alternate with each other on 5 one end of the case 3. On the other hand, the cover 4 has a plurality of ribs 7 having a substantially U-shaped cross-section and a plurality of recesses 8. The ribs 7 and the recesses 8 alternate with each other on one end of the cover 4 and are so shaped and positioned as to mate with the ribs 1 and 1 0 the ribs 2, respectively.
PIGS. 4A and 4B demonstrate how the case 3 and cover 4 are coupled with each other. As shown, the cover 4 is brought into the case 3 obliquely downward until the edges of the ribs 7 thereof abut against the ribs 1 of the case 3. At this instant, 15 the recesses 8 of the cover 4 each covers respective one of the ribs 2 of the case 3 obliquely downward. Subsequently, the cover 4 is rotated in a direction indicated by an arrow D until the ribs 1 and 7 and the ribs 2 and recesses 8 mate each other, as shown in FIGS. 3A and 3B. Then, the other end of the cover 4 2 0 remote from the ribs 4 and recesses 8 is lowered into the case 3. Finally, the case 3 and cover 4 are fastened together by the screw 6.
Assume that a force tending to separate the cover 4 from the case 3 or to produce a gap between the cover and the case 3 2 5 acts on the casing. Then, the U-shaped ribs 7 of the cover 4 are -6- ~ 2 ~ Ogg7 ~
apt to move in the right-and-left direction as viewed in FIG. 3A.
However, such a displacement of the ribs 7 is prevented by the engagement shown in FIG. 3B. Likewise, although the recesses 8 are apt to move upward as viewed in FIG. 3B, the engagement 5 shown in FIG. 3A prevents it from doing so. Further, assume that a torsional load acts on the casing, as indicated by an arrow E in FIG. 5. In this case, since the L-shaped ribs 2 and t h e U-shaped ribs 7 alternate with each other in the longitudinal direction, they interfere with each other to prevent the cover 4 10 from moving and, in addition, enhances the torsional strength of the entire casing.
Referring to PIGS. 6A and 6B, an alternative embodiment of the present invention will be described which is similar to the previous embodiment except for the arrangement of ribs and 15 recesses. As shown, a case 13 has the U-shaped ribs 7 and recesses 8 which alternate with each other, while a cover 14 has the I-shaped ribs 1 and L-shaped ribs 2 which also alternate with each other. As shown in FIGS. 7A and 7B, the cover 14 is brought into the case 13 obliquely downward until 2 0 the ribs 1 and ribs 2 thereof abut against the ribs 7 and 8, respectively. Subsequently, the cover 14 is rotated in a direction indicated by an arrow F to couple it to the case 13, as shown in FIGS. 6A and 6B.
In the illustrative embodiments, the edges of the ribs are 2 5 rounded or tapered, so that they can be mated easily. The cases 91~ 2 1 Og97 ~
3 and 13 and covers 4 and 14 may each be made of plastics or similar elastically deformable material to further enhance the easy mating operation.
In summary, in accordance with the present invention, a S casing for a mini~ture portable apparatus is made up of a case and a cover covering the open top of the case. The case and the cover are each provided with two kinds of ribs alternating with each other. The ribs of the case and those of the cover are different in cross-section and mate with each other. Hence, the 10 strength of the casing against torsion or similar load is noticeably increased. Further, when the casing is let fall by accident, the case and cover are prevented from separating from each other. In addition, the gap between the abutting portions of the case and cover is reduced to provide the c a s i n g 15 with attractive appearance.
Various modifications will become possible for those skilled in the art after receiving the teachings of the present disclosure without departing from the scope thereof.
I
CASING FOR A MINIATURE PORTABLE APPARATUS
BACKGRO~JND OF THE INVENTION
The present invention relates to the structure of a casing for a radio pager, radio telephone or similar miniature portable apparatu s .
Portable apparatuses which are miniature and light weight are extensively used today and include radio pagers and radio telephones. This kind of apparatus has a casing accommodating various functioning parts. The casing h a s customarily been made up of a box-line case storing the functioning parts, and a cover covering the open end of the case.
To couple the case and cover, a rib provided on the case and a rib provided on the cover are caused to mate with each other, and then the case and cover are fastened by, for example, a screw .
The problem with the conventional casing described above is that when a torsional load or similar unexpected load acts on the casing, the cover is apt to shift relative to the casing o r even to separate from the casing.
~ 2 1 0 9 9 7 6 SUMMARY OF THE INVENTION
It ls, therefore, an ob~ect of the present lnventlon to provlde a caslng for a mlnlature portable apparatus whlch prevents a case and a cover thereof from dlsplaclng or separatlng from each other even when an unexpected load acts thereon.
A caslng for a mlnlature portable apparatus of the present lnventlon has a box-llke case open at one end thereof and havlng a plurallty of flrst rlbs and a plurallty of second rlbs arranged on and along one of four sldes deflnlng the square open end of the case. The flrst rlbs and the second rlbs alternate wlth each other, and each has a partlcular cross-sectlon. A cover has a plurallty of thlrd rlbs and a plurallty of fourth rlbs conflgured and posltloned to mate wlth the flrst rlbs and the second rlbs, respectlvely.
In accordance wlth the present lnventlon, there ls provlded a caslng for a mlnlature portable apparatus, comprlslng: a box-llke case open at one end thereof and comprlslng a plurallty of flrst rlbs and a plurallty of second rlbs arranged on and along one of four sldes deflnlng a square open end of sald case, sald plurallty of flrst rlbs and sald plurallty of second rlbs alternatlng wlth each other and each havlng a dlfferent partlcular cross-sectlon, sald flrst and second rlbs havlng predetermlned contours; and a cover comprlslng a plurallty of thlrd rlbs and a plurallty of fourth rlbs, sald thlrd and fourth rlbs havlng contours whlch are conflgured and posltloned to complement, embrace and snugly clasp the predetermlned contours of sald plurallty of first rlbs and sald plurallty of second rlbs, respectlvely.
; 2 ~ O9g7 ~
In accordance wlth the present lnventlon, there ls further provlded a mlnlature houslng comprlslng a box and a cover; sald box and cover havlng complementary perlpheral contours so that they flt together to form a closed contalner;
two types of lnterlocklng rlb connectors alternately dlstrlbuted along sald perlpheral contours for holdlng sald cover on sald box; one of sald types of sald lnterlocklng rlb connectors havlng a flrst cross-sectlonal shape wlth complementary rlb parts at sald perlpheral contours on sald cover and sald box, respectlvely, for reslstlng horlzontal stress, the other of sald types of sald lnterlocklng rlb connectors havlng a second dlfferent cross-sectlonal shape wlth complementary rlb parts at sald perlpheral contours on sald covers and sald box, respectlvely, for reslstlng vertlcal stress.
BRIEF DESCRIPTION OF THE DRAWINGS
The above and other ob~ects, features and advantages of the present lnventlon wlll become more apparent from the followlng detalled descrlptlon taken wlth the accompanylng drawlngs ln whlch:
FIG. 1 ls an exploded perspectlve vlew of a caslng embodylng the present lnventlon;
FIG 2A ls a perspectlve vlew of a cover formlng part of the embodlment, as seen from the rear;
- 2a --, 2 1 0 g 9 7 6 FIG. 2B is a fragmentary enlarged view of ribs provided on the cover;
FIGS. 3A and 3B are sections along lines A-A and B-B of FIG. 1, respectively;
FIGS. 4A and 4B are views demonstrating how to set up the engaged conditions shown in FIGS. 3A and 3B;
FIG. 5 is a fragmentary perspective view representative o f the mating condition of the embodiment;
FIGS. 6A and 6B are sections showing an alternative embodiment of the present invention;
FIGS. 7A and 7B are views demonstrating how to set up engaged conditions shown in FIGS. 6A and 6B;
FIG. 8A is an exploded perspective view of a conventional casing; and FIG. 8B is a section along line C-C of FIG. 8A.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
To better understand the present invention, a brief reference will be made to a conventional casing for a radio 2 0 pager or similar mini~tllre portable apparatus, shown in FIGS. 8A and 8B. As shown in FIG. 8A, the casing is made up of a box-like case 21 and a cover 22 covering the open top of the case 21 and separable from the case 21. The case 21 is formed with a rib 23 having a generally I-shaped cross-section at one 2 5 end thereof. As shown in FIG. 8B, the cover 22 is provided with - ~" 2 1 0997 6 a rib 24 having a generally U-shaped cross-section on the rear thereof. The rib 24 is so positioned as to mate with the rib 23.
To fit the cover 22 on the case 21, the cover 22 is brought into the case 21 obliquely downward until the edge of the rib 24 5 abuts against the rib 23. Then, the cover 22 is rotated downward to cause the rib 24 to receive the rib 23 therein, as shown in FIG. 8B. Subsequently, the cover 22 is fastened to the case 21 by a screw 6 at the end thereof remote from the ribs 2 1 and 23. In FIG. 8A, the reference numeral 5 design~tes a battery 1 0 cover.
As stated above, the case 21 and cover 22 are coupled simply with their I-shaped rib 23 and U-shaped rib 24 mating with each other. This brings about a problem that when a torsional load or similar unexpected load acts on the casing, t h e 1 5 cover 22 is displaced or even removed from the case 21, as discussed earlier.
Referring to FIG. 1, a casing embodying the present invention is shown As shown, the casing has a box-like case 3 and a cover 4 covering the open top of the case 3 and separable 2 0 from the case 3. The case and cover 4 are coupled together with ribs thereof, which will be described, mating with each other, thereby forming the casing. A battery cover 5 is removably fitted on the cover 4. The cover 4 is formed with a hole 4a to be fastened to the case 3 by a screw 6.
~ 2 1 0 9 9 7 B
As shown in FIGS. 1, 2A and 2B, the case 3 has a plurality of ribs 1 having a substantially I-shaped cross-section, and a plurality of ribs 2 having a substantially L-shaped cross section. The ribs 1 and the ribs 2 alternate with each other on 5 one end of the case 3. On the other hand, the cover 4 has a plurality of ribs 7 having a substantially U-shaped cross-section and a plurality of recesses 8. The ribs 7 and the recesses 8 alternate with each other on one end of the cover 4 and are so shaped and positioned as to mate with the ribs 1 and 1 0 the ribs 2, respectively.
PIGS. 4A and 4B demonstrate how the case 3 and cover 4 are coupled with each other. As shown, the cover 4 is brought into the case 3 obliquely downward until the edges of the ribs 7 thereof abut against the ribs 1 of the case 3. At this instant, 15 the recesses 8 of the cover 4 each covers respective one of the ribs 2 of the case 3 obliquely downward. Subsequently, the cover 4 is rotated in a direction indicated by an arrow D until the ribs 1 and 7 and the ribs 2 and recesses 8 mate each other, as shown in FIGS. 3A and 3B. Then, the other end of the cover 4 2 0 remote from the ribs 4 and recesses 8 is lowered into the case 3. Finally, the case 3 and cover 4 are fastened together by the screw 6.
Assume that a force tending to separate the cover 4 from the case 3 or to produce a gap between the cover and the case 3 2 5 acts on the casing. Then, the U-shaped ribs 7 of the cover 4 are -6- ~ 2 ~ Ogg7 ~
apt to move in the right-and-left direction as viewed in FIG. 3A.
However, such a displacement of the ribs 7 is prevented by the engagement shown in FIG. 3B. Likewise, although the recesses 8 are apt to move upward as viewed in FIG. 3B, the engagement 5 shown in FIG. 3A prevents it from doing so. Further, assume that a torsional load acts on the casing, as indicated by an arrow E in FIG. 5. In this case, since the L-shaped ribs 2 and t h e U-shaped ribs 7 alternate with each other in the longitudinal direction, they interfere with each other to prevent the cover 4 10 from moving and, in addition, enhances the torsional strength of the entire casing.
Referring to PIGS. 6A and 6B, an alternative embodiment of the present invention will be described which is similar to the previous embodiment except for the arrangement of ribs and 15 recesses. As shown, a case 13 has the U-shaped ribs 7 and recesses 8 which alternate with each other, while a cover 14 has the I-shaped ribs 1 and L-shaped ribs 2 which also alternate with each other. As shown in FIGS. 7A and 7B, the cover 14 is brought into the case 13 obliquely downward until 2 0 the ribs 1 and ribs 2 thereof abut against the ribs 7 and 8, respectively. Subsequently, the cover 14 is rotated in a direction indicated by an arrow F to couple it to the case 13, as shown in FIGS. 6A and 6B.
In the illustrative embodiments, the edges of the ribs are 2 5 rounded or tapered, so that they can be mated easily. The cases 91~ 2 1 Og97 ~
3 and 13 and covers 4 and 14 may each be made of plastics or similar elastically deformable material to further enhance the easy mating operation.
In summary, in accordance with the present invention, a S casing for a mini~ture portable apparatus is made up of a case and a cover covering the open top of the case. The case and the cover are each provided with two kinds of ribs alternating with each other. The ribs of the case and those of the cover are different in cross-section and mate with each other. Hence, the 10 strength of the casing against torsion or similar load is noticeably increased. Further, when the casing is let fall by accident, the case and cover are prevented from separating from each other. In addition, the gap between the abutting portions of the case and cover is reduced to provide the c a s i n g 15 with attractive appearance.
Various modifications will become possible for those skilled in the art after receiving the teachings of the present disclosure without departing from the scope thereof.
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A casing for a miniature portable apparatus, comprising:
a box-like case open at one end thereof and comprising a plurality of first ribs and a plurality of second ribs arranged on and along one of four sides defining a square open end of said case, said plurality of first ribs and said plurality of second ribs alternating with each other and each having a different particular cross-section, said first and second ribs having predetermined contours; and a cover comprising a plurality of third ribs and a plurality of fourth ribs, said third and fourth ribs having contours which are configured and positioned to complement, embrace and snugly clasp the predetermined contours of said plurality of first ribs and said plurality of second ribs, respectively.
a box-like case open at one end thereof and comprising a plurality of first ribs and a plurality of second ribs arranged on and along one of four sides defining a square open end of said case, said plurality of first ribs and said plurality of second ribs alternating with each other and each having a different particular cross-section, said first and second ribs having predetermined contours; and a cover comprising a plurality of third ribs and a plurality of fourth ribs, said third and fourth ribs having contours which are configured and positioned to complement, embrace and snugly clasp the predetermined contours of said plurality of first ribs and said plurality of second ribs, respectively.
2. A casing as claimed in claim 1, wherein said first ribs and said second ribs have respectively a substantially I-shaped cross-section and a substantially L-shaped cross-section, while said third ribs and said fourth ribs have respectively a substantially U-shaped cross-section and a recessed configuration so that said L-shape fits into the embrace and is clasped by said U-shape.
3. A casing as claimed in claim 1, wherein said first ribs and said second ribs have respectively a substantially shaped cross section and a recessed configuration, while said third ribs and said fourth ribs have respectively a substantially I-shaped cross-section and a substantially L-shaped cross-section.
4. A miniature housing comprising a box and a cover;
said box and cover having complementary peripheral contours so that they fit together to form a closed container; two types of interlocking rib connectors alternately distributed along said peripheral contours for holding said cover on said box;
one of said types of said interlocking rib connectors having a first cross-sectional shape with complementary rib parts at said peripheral contours on said cover and said box, respectively, for resisting horizontal stress, the other of said types of said interlocking rib connectors having a second different cross-sectional shape with complementary rib parts at said peripheral contours on said covers and said box, respectively, for resisting vertical stress.
said box and cover having complementary peripheral contours so that they fit together to form a closed container; two types of interlocking rib connectors alternately distributed along said peripheral contours for holding said cover on said box;
one of said types of said interlocking rib connectors having a first cross-sectional shape with complementary rib parts at said peripheral contours on said cover and said box, respectively, for resisting horizontal stress, the other of said types of said interlocking rib connectors having a second different cross-sectional shape with complementary rib parts at said peripheral contours on said covers and said box, respectively, for resisting vertical stress.
5. The housing of claim 4, wherein said one type of said connectors comprises a pair of complementary L-shaped ribs, one of said L-shaped ribs being on each of said cover and said box, each of said ribs having raised part at the toe of said L-shape, the raised toes on said L-shapes snapping over each other to join said two L-shapes in a mutual embrace in order to resist a separation in a horizontal direction.
6. The housing of claim 5, wherein said other type of said connector comprising a U-shaped part on one of said cover and said box, an open gap in said U-shape facing a second part, said second part comprising an I-shaped portion received in said gap when said connector is closed, said U-shape and said I-shape nesting when said connector is closed to resist separation in a vertical direction.
7. The housing of claim 4, wherein said one type of said connectors comprises a pair of complementary L-shaped ribs, one of said L-shaped ribs being on each of said cover and said box, each of said ribs having raised part at the toe of said L-shape, the raised toes on said L-shapes snapping over each other to join said two L-shapes in a mutual embrace in order to resist separation in a horizontal direction, and said other type of said connector comprising a U-shaped part on one of said cover and said box, an open gap in said U-shape facing a second part, said second part comprising an I-shape portion received in said gap when said connector is closed, said U-shape and said I-shape nesting when said connector is closed to resist separation in a vertical direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4-318715 | 1992-11-27 | ||
| JP4318715A JP2758799B2 (en) | 1992-11-27 | 1992-11-27 | Housing mating structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2109976A1 CA2109976A1 (en) | 1994-05-28 |
| CA2109976C true CA2109976C (en) | 1997-09-23 |
Family
ID=18102170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002109976A Expired - Fee Related CA2109976C (en) | 1992-11-27 | 1993-11-25 | Casing for a miniature portable apparatus |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5562223A (en) |
| EP (1) | EP0600678B1 (en) |
| JP (1) | JP2758799B2 (en) |
| CA (1) | CA2109976C (en) |
| DE (1) | DE69321081T2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2806901B2 (en) * | 1996-08-08 | 1998-09-30 | 静岡日本電気株式会社 | Electronic equipment housing |
| TW376888U (en) * | 1999-01-22 | 1999-12-11 | wen-zhong You | Improvement of the locking structure for the boxes |
| JP2000236377A (en) * | 1999-02-12 | 2000-08-29 | Matsushita Electric Ind Co Ltd | Mobile terminal device |
| US20080180214A1 (en) * | 2007-01-26 | 2008-07-31 | S2S Design | Protective pager sleeve |
| US8593822B2 (en) * | 2010-09-22 | 2013-11-26 | Panasonic Corporation | Electronic apparatus provided with a detachable electrical component |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3149747A (en) * | 1961-12-28 | 1964-09-22 | Gen Motors Corp | Snap-on connected plate structure |
| US3360152A (en) * | 1965-08-27 | 1967-12-26 | Robert S Leers | Plastic housings |
| US4333580A (en) * | 1980-09-29 | 1982-06-08 | Associated Plastics, Inc. | Mechanism for locking two halves of an underground vault |
| US4654631A (en) * | 1986-03-06 | 1987-03-31 | Motorola, Inc. | Pocket clip with integral display |
| JPS6429877U (en) * | 1987-08-17 | 1989-02-22 | ||
| US5042674A (en) * | 1988-02-25 | 1991-08-27 | Rent A Boxx Moving Systems Inc. | Moving and storage container |
| JP2615908B2 (en) * | 1988-09-21 | 1997-06-04 | 松下電器産業株式会社 | Electronic equipment case |
| JPH0731580Y2 (en) * | 1989-07-21 | 1995-07-19 | 日本電気株式会社 | Holding cover structure |
| JP2742453B2 (en) * | 1989-09-14 | 1998-04-22 | 松下電工株式会社 | Wireless transmitter |
| US4925045A (en) * | 1989-11-01 | 1990-05-15 | Logsdon Foundation | Tub boxes |
| JPH0528729A (en) * | 1991-07-25 | 1993-02-05 | Sony Corp | External device box |
| JPH05254542A (en) * | 1992-03-17 | 1993-10-05 | Jatco Corp | Container |
-
1992
- 1992-11-27 JP JP4318715A patent/JP2758799B2/en not_active Expired - Fee Related
-
1993
- 1993-11-25 CA CA002109976A patent/CA2109976C/en not_active Expired - Fee Related
- 1993-11-26 EP EP93309455A patent/EP0600678B1/en not_active Expired - Lifetime
- 1993-11-26 DE DE69321081T patent/DE69321081T2/en not_active Expired - Lifetime
-
1996
- 1996-01-19 US US08/587,738 patent/US5562223A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US5562223A (en) | 1996-10-08 |
| DE69321081T2 (en) | 1999-02-25 |
| EP0600678A1 (en) | 1994-06-08 |
| JP2758799B2 (en) | 1998-05-28 |
| JPH06196873A (en) | 1994-07-15 |
| DE69321081D1 (en) | 1998-10-22 |
| EP0600678B1 (en) | 1998-09-16 |
| CA2109976A1 (en) | 1994-05-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed | ||
| MKLA | Lapsed |
Effective date: 20021125 |