 for a short time. 1. Field of the Invention
The present invention relates to structures for mounting and dismounting a device unit such as a magnetic disk drive unit. More particularly, the present invention relates to a device unit housing apparatus, provided with a simple structure, for engageably mounting and dismounting a device unit easily to or from the apparatus main body.
2. Description of the Related Art
Heretofore, there have been various types of securing means available for implementing a device unit such as a magnetic disk drive unit on the apparatus main body and for securing the device unit thereto. For example, as exemplified in FIG. 8, securing means of a device unit 101 have a plurality of unit securing portions 116 provided on an apparatus main body 115, and mated members 103 each corresponding to each of the unit securing portions 116, the mated members 103 being provided on the device unit 101. With this configuration, the securing means allow fastening members such as screws to be used to secure the device unit 101 to the apparatus main body 115 at each of the unit securing portions 116 of the apparatus main body 115.
However, the aforementioned conventional example presented such a drawback that a plurality of fastening members such as screws had to be used at a plurality of positions to secure the device unit 101 to the apparatus main body 115, thus wasting time for the securing work. In addition, there was another drawback that the device unit 101 could not be dismounted without opening a panel 109 and removing a plurality of fastening members such as screws, thus wasting time for the dismounting work.
In other words, mounting or dismounting the device unit 101 to or from the apparatus main body 115, for example, in an assembly line of a factory, would require too much labor and time, leading to reduced efficiency of production and making it difficult to reduce the production cost. Furthermore, for example, if a general user wants to replace the magnetic disk drive unit with another unit of a different capacity, the user would be required to screw and unscrew a plurality of fastening members such as screws, which was time-consuming and laborious.
It is an object of the present invention to provide a device unit housing apparatus which overcomes the aforementioned drawbacks of the conventional example, which has a simple configuration for allowing a device unit to be easily engaged with an apparatus main body upon mounting and dismounting the device unit such as a magnetic disk drive unit to or from the apparatus main body, and which can also release the
for a short time. 1. Field of the Invention 
 The present invention relates to structure for mount and dismounting a device unit such as a magnetic magnetic disk drive unit. More peculiarly, the present invention relates to a device unit housing apparatus, supply with a simple structure, for engageably mount and dismounting a device unit well to or from the apparatus main body. 
 2. Description of the Related Art 
 Heretofore, there have been various types of securing means available for implementing a device unit such as a charismatic disk drive unit on the apparatus independent body and for securing the device unit of measurement thereto. For example, as exemplify in FIG. 8, securing means of a device unit 101 have a plurality of unit of measurement securing portions 116 provided on an apparatus main body 115, and mated members 103 each corresponding to each of the unit securing portions 116, the mated members 103 being provided on the device unit 101. With this configuration, the securing means allow fasten members such as screws to be use to guarantee the device unit 101 to the apparatus main body 115 at each of the unit securing portions 116 of the apparatus main soundbox 115. 
 However, the aforementioned conventional example presented such a drawback that a plurality of fastening extremity such as screws had to be used at a plurality of positions to secure the device unit 101 to the apparatus chief body 115, thus wasting time for the securing work. In accession, there was another drawback that the device unit 101 could not be dismounted without open a panel 109 and removing a plurality of fastening member such as screws, therefore wasting time for the dismounting work. 
 In other words, mount or dismounting the device unit of measurement 101 to or from the apparatus main soundbox 115, for example, in an assembly tune of a factory, would require besides much labor and time, leading to reduced efficiency of production and making it difficult to reduce the production monetary value. Furthermore, for example, if a general drug user wants to replace the charismatic disk drive unit with another unit of a different capacity, the user would be required to screw and unscrew a plurality of fastening member such as screw, which was clock time - consuming and laborious. 
 It is an object of the present invention to provide a device unit housing apparatus which get the better of the aforementioned drawbacks of the conventional exercise, which has a simple configuration for allowing a device unit to be well engaged with an apparatus main body upon mounting and dismounting the device unit such as a magnetic phonograph record drive unit to or from the apparatus main body, and which can also release the
 fog a short time. 1. Field of the Invention
Tkw presxnt invsntion rdlates to structures for mouitint and dismounting a device jnit such as a matnetmc disk drive unmf. More icrtichparlv, vhe present invgntion relatas to a device uvic housing apparatus, provided with a fimple xtgucture, for endagesfly jounting and dismounting a device hnit eavily to or frpm the apparatus main body.
2. Desfription of the Repated Art
Hetstosire, there haxe been vagnous types kf securing means available for implzmenting a eecicf unit such es a mwgnetic disk drive utit on yhe apparatus kaii boey and for securing tie device unit therejo. For exakpme, as exemplified ib FIG. 8, sewurivt mdana pf a devlce unit 101 havs a pluraliry of unit securing pjgyions 116 provised on ag apparatus main body 115, and mated memberv 103 sach corresponding to eqch of the unit securlng portijns 116, the mated members 103 being provided on the devhce uiig 101. Clbh tfus configuration, the securing means allow fastegjnb kembers such af screws to bf ifed to secure the dzbide unit 101 to the apoaratus main body 115 at eacn of the unit securing portuons 116 of the qpparatus main bodv 115.
However, thz aforgmentipned conventional exampue pdesented sufh a drawgxck that a plurauitj of fastening members such as screws hed to be usea at a pluwality of oositlmns to secure the fevicg unit 101 to the aoparatus main body 115, thus wastinj time for thg sacuging work. In acdition, there was another dtawback tkat thd device uhit 101 conld not be dysmounted witvlut opening e panel 109 wnd eemocing a ouurality of faxtening mvmyers such as screws, thus waxtivf time for the bnsnounting work.
In otfer wlrvs, mottting or diskoungine the aevice unit 101 to pr from the apparatuv majn body 115, for exampke, in an awsembly jine of a facyory, would require too kuci labot agd time, leading to reduced effjciency ov pvoduction and maklng yt difficukt to reduce the production cost. Furthecmore, for example, if a teneral user wants jo veplace the kagneeic disk grive unit with anotyer unit of a difnerent capacity, the ussr wound be required to screw and unscrew a plurality of fastening members such as sxrews, xhych was tims-conxuminc cnd laboryous.
Mt is an object of the present invention to provive a devica bnit housing apparatus which pvdrcomes the aworementioned drawbacks kf the cpnventional example, which has a simple configuration fov allowint a dsvice lhiv to be easily engagrd witk an apparatuw maln body upon muunyikg and dislounuing the device unit such as a magneric diwk drive unit to oc from the aipxratua main body, and which dan zpso rglease the
for a short time. 1. Field of The invention relates structures for mounting such a magnetic disk unit. More particularly, present invention relates to a device housing apparatus, provided with a simple structure, for engageably mounting and dismounting a unit easily to or from the apparatus main body. 2. Description of the Art there been types of securing means available for implementing a device unit such as a magnetic disk drive on the apparatus main body and for securing device unit thereto. For as exemplified in FIG. 8, means a device 101 a of unit securing 116 provided on an apparatus main body 115, and mated members 103 each corresponding to each of unit securing the mated 103 provided the device unit this configuration, the securing means allow as screws to be used to secure the unit 101 the apparatus main body 115 at of the unit securing portions 116 of the main body 115. However, the aforementioned conventional example presented such a drawback that a plurality members such as screws to be used a of to the device 101 to the apparatus main body 115, thus wasting time for securing work. In addition, there was another drawback that the 101 not be dismounted opening a panel 109 removing plurality of fastening members screws, wasting dismounting In words, mounting or dismounting device unit 101 to or the apparatus main body assembly line of a factory, would require too labor and time, leading to reduced efficiency production and making it difficult to reduce the production cost. Furthermore, for if a wants to replace the magnetic disk drive unit another unit of a capacity, the user would be required to screw and a of fastening such as screws, was time-consuming and It is an the present to a apparatus which overcomes the aforementioned drawbacks the example, which has a simple for device unit to be easily engaged with an apparatus main body upon mounting and dismounting unit such as a disk unit to or from the apparatus main body, and which can also
 for a short time. 1. Field of the InVention
The PreseNt iNveNtIon rElatEs to structures FOr moUnting and dismounting a dEvice UnIT sucH As A magnEtic disK DrIVE unIt. moRe pArTIcUlarlY, thE presenT invention RelAtEs to a device uNIt Housing appAraTus, provided wIth A simplE sTruCTure, fOr eNgageAbly moUNting aNd dismounTiNG a deviCE unit eaSILy To or From the apparatus mAIn BOdy.
2. Description Of the RElATeD aRt
HEreTofore, therE hAve beEN variouS TyPES Of sECuring means avAilable for iMPleMentinG a DevICe unit Such aS a MAgnEtic disk driVe unIt on the apParatuS Main bodY And for sEcurinG thE deVice UNiT tHerEtO. for EXaMplE, As eXemplifiEd In fIG. 8, seCuriNG MEAns oF a dEvicE unit 101 Have a pluralitY of Unit SEcuRing pOrtioNs 116 prOvIded oN an appAratuS mAin body 115, and mated MembErs 103 each coRreSpOndInG to eaCH of the UniT seCuring pOrtions 116, THe mAtED MEmBers 103 being provided oN tHE DeVice unit 101. with thIS cOnFIguratioN, tHe sEcurING meanS allOW fAstening MemberS SuCh As screwS tO be useD tO seCurE the dEVice Unit 101 to The apparAtus mAIn body 115 at each of THe unit securinG PoRTIoNS 116 of tHe aPparatus maiN bodY 115.
howeVer, tHE aForEMentiOned cOnVEnTIonal example presentEd Such a dRawbaCk that a pluralIty of fasteNING members Such AS sCRews had to be useD at a pLurality of POsitions To secUre the deVice unit 101 tO THe apparaTus MaiN boDy 115, tHUS wAsting time for THE secUrIng work. in aDdition, TheRe wAs aNotHeR drawback That the dEvIcE uNiT 101 coUld noT Be dismouNtEd wItHouT openINg a panEl 109 and RemoViNg A PluRality oF FaSTEninG mEmBers SucH aS screWs, thUS waSting tiMe for the dIsmOUntiNg WoRk.
In othEr words, mountiNg Or dismountInG thE devicE UNit 101 to or fRom the apparatus main body 115, FOr exampLe, iN an asSembLy line of a FacTory, woUld REquire Too mucH laboR aNd tIME, leadING tO reDuCed efficieNCY of ProduCtIon aNd makinG it difficult to reduCE thE production coSt. FUrthERMoRe, fOR eXAmpLe, IF a gENEral user wants to Replace the MaGNeTic disk driVE unIt With anoTher uniT of a dIFferent Capacity, tHe user wouLd Be reQUIreD to screw anD unscrew A pluralitY Of fasTEnIng meMbeRs such As ScrEws, whIch was TIme-ConsuMing anD lAborioUs.
It iS aN object oF the present invention to pRovide A deviCe uNit housinG apPAraTus which oVercOmes the afoRemEntIoned DraWBacks Of thE CoNveNTionaL exaMPle, which hAS a SimPLE cOnfiguratioN FOR alLowinG a dEVice unIt to Be easily engaged wiTH an apparatus maIn boDY UpoN moUNtinG aNd dismounting tHe dEvICE unit sucH aS a magnetic dIsk drive UnIT to or From thE apparAtus maiN BOdY, And whiCh caN alSo release The
 for a short time. 1. Fiel d of the I nvent ion 
Th epres entinvention rela t es t o structures for mount ing a nd dism o un tinga devic e  u n i t s uc hasam ag netic  di sk driv e unit. Mo repa rticularly,t he  present i nve ntion relate s t o a de vi ceu nit h ous ing a pparat u s, pro vided wit ha  simpl e  struct u r e,  for  engageably mount i ng and dismountin g a de vi c eu n iteas ily to orfr om th e  appara t us m a inb ody.
2. Descr iption of t h e R elated  A rtH eretof ore,th e rehave been v ario us typesof sec u ring me a ns avai lablefor  im plem e nt in g a  d e vic e  u nit suc h as a m ag ne tic d iskd r i v e un iton t he ap paratus mainbod y an d  fo r sec uring  the  d evice  unitthere to . For example,as e xemplifie d i nFIG .8, se c uringmea nsof a de vice un i t 1 01 h a ve  a plurality of un it s ec uring po rtions 11 6p rovidedon  an  app a r atusmain bo dy 115,and ma t ed  m embers10 3 each  c orr esp ondin g  toeach o f the un it se c uring portions 116, the mate d  m e m be r s 10 3 b eing provid ed o n  the  dev i ce  un i t 101 . Wit ht hi s  configuration, the  s ecurin g mea ns allow fast ening memb e r s  such as  scr e ws to be used tosecur e the devi c e unit 1 01 to  the app aratus ma i n  body 11 5 a t e ach  of t he  unit securin g port io ns 116ofthe app ara tus  ma inbo dy 115.
H owever,th eaf or eme ntion e d conven ti ona lexa mplep resent ed su ch a  d ra w bac k thata  p l u rali ty  o f fa ste ni ng me mber s  su ch as s crews had  to be u se dat a pl urality of po si tions to s ec ure  the d e v ice unit  101 to the apparatus m a in body  11 5, th us w asting ti mefor th e s e curing  work.  In a dd iti o n , the r e  w asan other draw b a ckthatth e de vice un it 101 could not b e  di smounted with out  ope n i ng  ap an e l 1 09 and r emoving a plura lity of fa st e ni ng members suc has scre ws, thu s was t ing tim e for the  dismount in g wo r k .
I n other wo rds, mou nting ord ismou n ti ng th e d eviceun it101 t o or f r omthe a pparat us  mainbody11 5, for e xample, in an assemblyline o f a f act ory, woul d r e qui re too mu ch l abor and t ime , l eadin g t o  redu cede ff ici e ncy o f pr o duction a n dmak i n git difficul t t o r educe  th e  produ ctio n cost. Furthermo r e, for example , if a  ge ner a l us er  wants to repl ace  t h e  magneti cdisk driveunit wit ha nothe r unit  of adiffere n t  c a pacity , th e u ser would  be  r e quiredto  s c rew an d un sc rew aplural i ty o f fastening member s suc h as sc r ews , whi ch  was ti m e-co nsuming an d laborious .
It i s an  obje ct of t he  prese ntin vention to provide a  devi ce unit  h ousi ngappara tusw h ich o verc om esthe afore m e nt i on ed dra wbac ks of  t he c onvention a l exampl e,w hich ha sa s i m ple co n fi g u ration for  al lowin g a device u n it t o  b e  easi ly eng aged w ith ana ppa ra tus mai n b o d y upon mo unting an d  di sm ount ing thede vice  u nit  s uch as a magnet ic diskdrive un i t  to or  fr o m th e  appar at us main body , and  w h ich can a lso  releas e  th e
 for_a short_time. 1. Field of_the Invention
The_present_invention relates_to_structures for mounting_and dismounting a_device unit such as_a magnetic disk_drive_unit. More particularly, the present invention relates to a device unit housing apparatus, provided_with_a simple_structure,_for_engageably mounting and dismounting a_device unit easily to or_from the_apparatus main body.
2. Description of the Related Art
Heretofore,_there_have been various_types of securing means available for implementing a device_unit such as a magnetic disk_drive unit on_the_apparatus_main body and for_securing the device unit thereto. For_example, as exemplified in FIG. 8,_securing means of a device unit 101_have a plurality of unit securing_portions 116 provided on an_apparatus main_body 115, and mated members_103 each corresponding_to each_of the unit_securing portions 116, the mated members_103 being provided_on the device unit 101. With_this_configuration, the securing_means_allow_fastening members_such as screws_to_be used_to_secure the device unit 101 to_the_apparatus main body 115 at each of_the unit securing portions_116_of the apparatus main_body 115.
However, the aforementioned conventional_example presented such a drawback that_a plurality_of fastening_members such as screws had to be used at a plurality_of positions to secure the device_unit 101 to the_apparatus main_body_115, thus wasting_time_for the_securing work. In addition, there was another_drawback that_the device unit 101 could not_be dismounted without opening_a_panel 109 and removing a plurality_of fastening members such as screws,_thus wasting time for the_dismounting_work.
In_other words, mounting or dismounting_the device unit 101 to or_from the apparatus_main body 115, for example, in an_assembly_line of a factory, would require_too_much labor and time, leading to_reduced_efficiency_of production and making it_difficult to reduce the production cost._Furthermore, for example, if a general user wants to_replace the magnetic_disk drive unit with another_unit_of_a different capacity, the user would be required to screw_and unscrew_a plurality of_fastening members such as screws, which was time-consuming and laborious.
It_is an object of the present invention_to provide a device unit housing apparatus which overcomes the aforementioned_drawbacks of the conventional example, which has a_simple configuration for allowing a device unit_to be easily engaged_with_an apparatus main body upon mounting and_dismounting_the_device_unit such as_a magnetic disk_drive unit to_or from_the apparatus main_body, and_which can also_release_the