US20010003684A1 - Mechanism for preventing electronic unit from being pulled out from housing under condition that electronic unit is connected with plug - Google Patents
Mechanism for preventing electronic unit from being pulled out from housing under condition that electronic unit is connected with plug Download PDFInfo
- Publication number
- US20010003684A1 US20010003684A1 US09/729,919 US72991900A US2001003684A1 US 20010003684 A1 US20010003684 A1 US 20010003684A1 US 72991900 A US72991900 A US 72991900A US 2001003684 A1 US2001003684 A1 US 2001003684A1
- Authority
- US
- United States
- Prior art keywords
- electronic unit
- housing
- engaging arm
- engaging
- plug
- 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.)
- Granted
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/18—Packaging or power distribution
- G06F1/181—Enclosures
-
- 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
- H05K5/02—Details
- H05K5/0208—Interlock mechanisms; Means for avoiding unauthorised use or function, e.g. tamperproof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/06—Connectors or connections adapted for particular applications for computer periphery
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S439/00—Electrical connectors
- Y10S439/911—Safety, e.g. electrical disconnection required before opening housing
Abstract
An electronic unit having an electric connecting part connectable with a plug is accommodated in a housing of an electronic equipment so that the electronic unit can be attached to and detached from the housing. An engaging arm is rotatably mounted on one face of the electronic unit on which the electric connecting part is provided. When a plug is connected to the electric connecting part of the electronic unit, one end of the engaging arm is engaged with the engaging portion of the housing, whereby the electronic unit can be prevented from being pulled out from the housing. When the plug is detached from the electric connecting part of the electronic unit, the engaging portion of the engaging arm can be disengaged from the housing by the rotation of the engaging arm. Therefore, if the plug is detached from the electric connecting part of the electronic unit, the electronic unit can be pulled out from the housing. If the electronic equipment is arranged as above, the electronic unit can be prohibited from being pulled out from the housing of the electronic equipment under condition that the plug is connected to the electric connecting part of the electronic unit and power is supplied to the electronic unit through the plug.
Description
- 1. Field of the Invention
- The present invention relates to a pull-out preventing mechanism for use with an attachment electronic unit housed within a housing of an electronic equipment which is arranged so that the attachment electronic unit can be attached to and detached from the housing. The present invention also relates to the electronic equipment having the pull-out preventing mechanism.
- 2. Description of the Related Art
- Recently, an information-oriented society has been rapidly developed and each member of society is deeply involved in the orientation in terms of its individual use of data terminal equipment or electronic equipment. When the electronic equipment such as a personal computer is utilized in a firm or the like, such electronic equipment tends to be operated in a day-and-night manner in order to provide service to its customer. Thus, if the electronic equipment comes to be uncontrollable due to any trouble or the like, a lot of inconvenience will be imposed on the customer. For this reason, the electronic equipment is requested to be more reliable. So, makers supplying the electronic equipment have responded to the request in such a manner that a main unit of the electronic equipment is arranged to have redundancy. That is, the electronic equipment is designed so that even if one of the attachment electronic units housed within the electronic equipment suffers from trouble, the electronic equipment is free from an uncontrollable state and hence always sustainable in day-and-night operation.
- For example, if the electronic equipment is operated in a day-and-night manner as described above and one of the attached electronic unit provided in the electronic equipment suffers from trouble, the electronic equipment will be electrically influenced from noise or the like, with the result that the electronic equipment fails to function normally. In the worst case, the whole arrangement of the electronic equipment can be broken. Thus, when an operator deals with the electronic equipment, closest attention shall be paid. Accordingly, when the attached electronic unit provided in the electronic equipment suffers from trouble, it is necessary for the attachment electronic unit to be detached from the main body of the electronic equipment.
- FIG. 1 is a diagram showing one example of a conventional electronic equipment. As shown in FIG. 1,
electronic equipment 71 has an attachmentelectronic unit 51 housed therein.Housing 52 constitutingelectronic equipment 71 has attachmentelectronic unit 51, a main unit, not shown, or the like accommodated therein. Attachmentelectronic unit 51 is formed into a substantial box shape. Onfront face 51 a of attachmentelectronic unit 51, there are providedhandle 60 for detaching attachmentelectronic unit 51 fromhousing 52, switch 58 for turning on or off the attachment electronic unit,inlet 56 to whichpower supply plug 59 is inserted and electric power is supplied to the attachment electronic unit. On the rear face of attachmentelectronic unit 51, there is provided plug-inconnector 51 b through which signal transaction is effected with another unit. - On the other hand,
housing 52 is formed to have an accommodating portion at which attachmentelectronic unit 51 is attached to or detached from.Opening 53 of the accommodating portion is formed on one face ofhousing 52. On an inner wall ofhousing 52, there is provided a connector corresponding to plug-inconnector 51 b which is disposed on one rear face of attachmentelectronic unit 51. When attachmentelectronic unit 51 is housed withinhousing 52, plug-inconnector 51 b is connected to a mating connector provided withinhousing 52. - When attachment
electronic unit 52 is housed withinhousing 52, initially, the rear portion of attachmentelectronic unit 51 is inserted into opening 53 and then the whole body of attachmentelectronic unit 51 is inserted intohousing 52 by usinghandle 60. Thus, substantially the whole body of attachmentelectronic unit 51 can be accommodated withinhousing 52. Housed attachmentelectronic unit 51 can be fixed in such a manner that plug-inconnector 51 b is matched with the mating connector provided withinhousing 52. Thereafter, attachmentelectronic unit 51 is fastened tohousing 52 by usingscrews 61. - After attachment
electronic unit 51 is fixed tohousing 52,power supply plug 59 connected at one end of a cable is inserted intopower receiving inlet 56. Then,power switch 58 is turned on so that attachmentelectronic unit 51 is energized. When attachmentelectronic unit 51 is to be replaced with another attachment electronic unit due to trouble with attachmentelectronic unit 51,power switch 58 is turned off and thenpower supply plug 59 is pulled out frompower receiving inlet 56. Thereafter,screws 61 are removed fromhousing 52 and attachmentelectronic unit 51 is pulled out fromhousing 52. - However, the structure of the conventional electronic equipment shown in FIG. 1 encounters the following drawbacks. Initially, when attachment
electronic unit 51 ofelectronic equipment 71 is to be replaced with another attachment electronic unit, an operator tends to leavepower supply plug 59 connected to attachmentelectronic unit 51. When attachmentelectronic unit 51 is replaced with another unit, ifpower switch 58 is turned on andpower supply plug 59 is left connected topower receiving inlet 56, attachmentelectronic unit 51 is pulled out fromhousing 52 under condition that attachmentelectronic unit 51 is energized. In this case, other units or the like withinelectronic equipment 71 can suffer from excessive current flow or noise can be generated. The excessive current or noise can influence circuits under operation, with the result that the energized circuits can fail to function normally. If the malfunction caused under the above condition is not serious, breakdown ofelectronic equipment 71 will be avoided. However, if the malfunction caused under the above condition is serious,electronic equipment 71 can break down. - An object of the present invention is to provide a pull-out preventing mechanism of an attachment electronic unit which can prohibit a user from unintentionally pulling out the attachment electronic unit from a housing when the attachment electronic unit housed within the housing to be detachable is replaced with another electronic unit under condition that the attachment electronic unit is connected with a power supply plug. Also, an object of the present invention is to provide an electronic equipment having such a pull-out preventing mechanism.
- According to the present invention, if an electronic unit is housed within a housing of an electronic equipment so that the electronic unit can be attached to and detached from the housing, the electronic unit can be prevented from being pulled out from the housing under condition that the electronic unit is connected at its electric connecting part with a plug. More concretely, an engaging arm rotatably mounted on the electronic unit is engaged with an engaging portion provided on the housing, whereby the electronic unit can be prevented from being pulled out from the housing. With this arrangement, for example, if the electronic unit is connected at its electric connecting part with the plug and the electronic unit is energized through the plug, an operator can be prohibited from unintentionally pulling the electronic unit out from the housing of the electronic equipment. When the electronic unit is to be replaced with another electronic unit due to trouble caused in the electronic unit, the operator shall detach the plug from the electric connecting part of the electronic unit which is housed within the housing, and thereafter the operator pulls the attachment electronic unit out from the housing under the condition that the plug is removed from the electronic unit. According to the above arranged electronic equipment, the pull-out preventing mechanism for preventing the electronic unit from being pulled out from the housing will not be unlocked so long as the plug is detached from the electric connecting part of the electronic unit. Therefore, the electronic unit can be positively prevented from being pulled out from the housing under condition that the plug is connected to the electric connecting part of the electronic unit. With this arrangement, for example, if the operator unintentionally leaves the plug connected to the electronic unit, the operator can be prohibited from pulling the electronic unit out from the housing. In other words, when the operator intends to pull the electronic unit out from the housing, the operator is obliged to disconnect the plug from the electronic unit to completely cut the passage of power supply to the electronic unit. In this way, when the electronic unit is to be replaced with another electronic unit, the electronic equipment will be free from excessive current flow or noise generation at a portion other than the electronic unit. As a result, the circuits under operation can be free from influence coming from the excessive current flow or from noise. Accordingly, a malfunction can also be avoided in electronic unit under operation different from the electronic unit. Further, the electronic equipment having an attachment electronic unit which can be replaced with another electronic unit will not be deteriorated in its original performance. Therefore, the electronic equipment can be utilized with reliability.
- The above and other objects, features and advantages of the present invention will become apparent from the following description with reference to the accompanying drawings which illustrate an example of the present invention.
- FIG. 1 is an oblique view of a part of a set of conventional electronic equipment in which an attachment electronic unit is provided;
- FIG. 2 is an oblique view of a set of electronic equipment according to one embodiment of the present invention in which a part thereof is illustrated in an exploded fashion; and
- FIG. 3 is an oblique view of a set of electronic equipment having a housing in which the attachment electronic unit shown in FIG. 2 is accommodated.
- FIG. 2 is an oblique view of a set of electronic equipment according to one embodiment of the present invention. As shown in FIG. 2,
electronic equipment 31 of the one embodiment of the present invention includeshousing 2 constitutingelectronic equipment 31, and attachmentelectronic unit 1 is housed withinhousing 2 so that attachmentelectronic unit 1 can be attached to and detached fromhousing 2. Attachmentelectronic unit 1 is substantially shaped into a box. When attachmentelectronic unit 1 is housed inhousing 2,front face 1 a of attachmentelectronic unit 1 is exposed to the outside. Attachmentelectronic unit 1 has on itsfront face 1 ahandle 10 utilized when an operator attacheselectronic unit 1 to or detaches the same fromhousing 2. Attachmentelectronic unit 1 also has on itsfront face 1 apower switch 8,power receiving inlet 6, engagingarm 21 serving as pull-out preventing means.Power receiving inlet 6 is formed to haveplug insertion recess 7.Plug insertion recess 7 is arranged to receivepower supply plug 9 which will be described later on with reference to FIG. 3. - Further, attachment
electronic unit 1 is provided with plug-inconnector 1 b on an upper portion of a face which is opposite tofront face 1 a, i.e., the rear face of attachmentelectronic unit 1. Plug-inconnector 1 is electrically connectable with another electric part which is different from attachmentelectronic unit 1. - Set of
electronic equipment 31 is arranged to have pull-out preventing mechanism which prevents attachmentelectronic unit 1 from being pulled out fromhousing 2 under condition thatpower supply plug 9 is connected to power receivinginlet 6. The pull-out preventing mechanism is composed of engagingarm 21 attached to attachmentelectronic unit 1 and engagingportion 4 formed to project from one face ofopening 3 ofhousing 2. Engagingportion 4 is formed to haveslot 5 which can be engaged with one end of engagingarm 21.Engaging arm 21 is mounted onfront face 1 a of attachmentelectronic unit 1 nearpower receiving inlet 6 so that engaging arm can be rotated aroundpin 22. Thus, engagingarm 21 can be rotated on an axis ofpin 22 which is perpendicular tofront face 1 a. When engagingarm 21 is rotated, as will be described later on, one end of engagingarm 21 is inserted intoslot 5 or detached from the same. - Engaging
arm 21 is formed into a V-letter shape as viewed from the side offront face 1 a when engagingarm 21 is mounted on attachmentelectronic unit 1. The rotation axis of engagingarm 21 is disposed in the bending portion of the V-letter shape and engagingarm 21 is supported so as to be rotatable aroundpin 22. One end of engagingarm 21 opposite to the end of the same on the side ofpower receiving inlet 6, serves asinsertion portion 21 a which is to be inserted intoslot 5. Further, the other side of engaging arm on the side ofpower receiving inlet 6 serves aslid portion 21 b. When engagingarm 21 is rotated in one direction, pluginsertion recess 7 is covered at its lower portion withlid portion 21 b. Conversely, when engagingarm 21 is rotated in the other direction opposite to that direction,lid portion 21 b is moved and pluginsertion recess 7 is entirely opened. -
Front face 1 a of attachmentelectronic unit 1 is formed to have projectingportion 15 at a lower portion ofplug insertion recess 7 ofpower receiving inlet 6. As shown in FIG. 2, when engagingarm 21 is rotated in one direction so thatlid portion 21 b abuts on upper surface of projectingportion 15, engagingarm 21 is placed at a first stop position. If engagingarm 21 is free from any external force, engagingarm 21 is rotated in this direction aroundpin 22 andlid portion 21 b is moved downwardly. Whenlid portion 21 b rests on projectingportion 15, engagingarm 21 is placed at the first stop position. When engagingarm 21 is placed at the first position, pluginsertion recess 7 is covered at it lower portion withlid portion 21 b andinsertion portion 21 a is retracted from the lower edge offront face 1 a. -
Housing 2 is provided withaccommodating portion 2 a as a space for accommodating attachmentelectronic unit 1 so that attachmentelectronic unit 1 can be attached to or detached fromhousing 2. Thus,housing 2 is formed to haveopening 3 ofaccommodating portion 2 a on one face ofhousing 2. On the lower edge of opening 3 ofhousing 2, there is partly formedengaging portion 4 of a plate shape protruding perpendicularly with respect to the face ofopening 3. At the proximal side of engagingportion 4 nearopening 3, there is formedslot 5 extending in a direction parallel to the face ofopening 3. When attachmentelectronic unit 1 is housed withinhousing 2 andinsertion portion 21 a of engagingarm 21 is inserted intoslot 5,insertion portion 21 a is engaged withengaging portion 4. In this way, attachmentelectronic unit 1 is fixed tohousing 2 and attachmentelectronic unit 1 is prohibited from being pulled out fromhousing 2. -
Front face 1 a of attachmentelectronic unit 1 has fixingtab 13 projecting from an upper end portion of one side of the front face of attachmentelectronic unit 1.Front face 1 a of attachmentelectronic unit 1 also has fixingtab 13 projecting from a lower end portion of the other side of the front face of attachmentelectronic unit 1. Each of twotabs 13 is formed to have fixingholes 12 through which screw 11 is threaded.Front face 1 a of the side ofopening 3 ofhousing 2 is provided with two tappedholes 14 so as to correspond to fixingholes 12, and screws 11 are threaded into tappedholes 14, respectively. Tappedholes 14 are provided so as to correspond to fixingholes 12 of attachmentelectronic unit 1, respectively. When screws 11 are threaded into tappedholes 14 through fixingholes 12 of attachmentelectronic unit 1, attachmentelectronic unit 1 can be fixed tohousing 2. - FIG. 3 is a
diagram showing housing 2 in which attachmentelectronic unit 1 is accommodated. Although not completely shown in FIG. 3,housing 2 has other electronic component such asmain unit 16 accommodated therein, in addition to attachmentelectronic unit 1. On the upper portion on the side ofaccommodating portion 2 a ofmain unit 16, there is provided plug-inconnector 16 b corresponding to plug-inconnector 1 b which is provided on the rear face of attachmentelectronic unit 1. When attachmentelectronic unit 1 is inserted intohousing 2, plug-inconnector 1 b is connected to plug-inconnector 16 b. In this way, circuit components provided within attachmentelectronic unit 1 are electrically connected to circuit components provided withinmain unit 16 through plug-inconnector 1 b and plug-inconnector 16 b. In other words, signal transaction can be carried out betweenmain unit 16 and attachmentelectronic unit 1 through plug-inconnector 1 b and plug-inconnector 16 b. - Operation of the pull-out preventing mechanism of attachment
electronic unit 1 in the set ofelectronic equipment 31 will hereinafter be described on the basis of attaching and detaching operation of attachmentelectronic unit 1 with respect tohousing 2. - When attachment
electronic unit 1 is accommodated withinhousing 2, initially, the rear portion of attachmentelectronic unit 1 having plug-inconnector 16 b provided is inserted intoopening 3 ofhousing 2. Then, attachmentelectronic unit 1 is inserted intohousing 2 by usinghandle 10, thus attachmentelectronic unit 1 is moved into the depth ofaccommodating portion 2 a ofhousing 2. In this way, substantially the whole body of attachmentelectronic unit 1 is housed withinaccommodating portion 2 a ofhousing 2. Attachmentelectronic unit 1 accommodated withinhousing 2 is fixed in such a manner that plug-inconnector 1 b is matched with plug-inconnector 16 b. Attachmentelectronic unit 1 accommodated withinhousing 2 in this manner is fastened tohousing 2 by means ofscrews 11. - After attachment
electronic unit 1 is fixed tohousing 2, a user rotates engagingarm 21 onpin 22 with his or her manual operation so thatlid portion 21 b of engagingarm 21 is brought apart from projectingportion 15. Thus,lid portion 21 b is rotated in the upward direction, pluginsertion recess 7 is completely opened, and insertingportion 21 a is rotated in the downward direction. At this time, insertingportion 21 a comes to project downwardly from the lower edge offront face 1 a as a result of the rotational motion of insertingportion 21 a. When insertingportion 21 a is projected from the edge offront face 1 a, insertingportion 21 a is inserted intoslot 5, whereby engagingarm 21 is brought into engagement with engagingportion 4. - Then, as shown in FIG. 3, the user inserts
power supply plug 9 connected at one end of a cable to pluginsertion recess 7 opened bylid portion 21 b of engagingarm 21. Whenlid portion 21 b abuts onpower supply plug 9 connected to power receivinginlet 6, engagingarm 21 is brought to a second stop position in whichinsertion portion 21 a is engaged withslot 5 as shown in FIG. 3. When engaging arm is placed in the second stop position, engagement between engagingarm 21 andslot 5 cannot be released unlesspower supply plug 9 is detached fromplug insertion recess 7 andpower supply plug 9 is disconnected frompower receiving inlet 6. In this case, handle 10 is disposed at a position not conflicting with engaging arm when engagingarm 21 is brought to the second stop position by rotation. - Thereafter,
power switch 8 is turned on to energize attachmentelectronic unit 1. When attachmentelectronic unit 1 is to be replaced with another attachment electronic unit due to trouble or the like,power switch 8 is turned off andpower supply plug 9 is pulled out frompower receiving inlet 6. Whenpower supply plug 9 is pulled out frompower receiving inlet 6, engagingarm 21 is rotated in a direction opposite to the above-mentioned direction owing to the weight oflid portion 21 b, whereby engagingarm 21 is moved toward projectingportion 15. - In this way,
lid portion 21 b abuts on projectingportion 15 andlid portion 21 b covers the lower portion ofplug insertion recess 7. At the same time, wheninsertion portion 21 a is rotated and moved upwardly,insertion portion 21 a is prevented from being projected from the edge offront face 1 a. With this rotational motion of engagingarm 21,insertion portion 21 a can be disengaged fromslot 5 and hence engagement betweeninsertion portion 21 a andslot 5 can be released. In this way, ifpower supply plug 9 is pulled out fromplug insertion recess 7, and engaging arm is brought to a free state in which no external force is applied thereto, engagingarm 21 is rotated in such a manner thatinsertion portion 21 a is disengaged from engagingportion 4. Then, whenlid portion 21 b abuts on projectingportion 15, engagingarm 21 is stopped at first stop position. As described above, if engagingarm 21 is placed at the first stop position, then pluginsertion recess 7 is covered at its lower portion with engagingarm 21, with the result thatpower supply plug 9 is prohibited from being inserted intoplug insertion recess 7. Afterscrews 11 are removed fromhousing 2, the user pulls attachmentelectronic unit 1 out fromhousing 2. - As described above, according to the embodiment of the set of electronic equipment according to the present invention, if attachment
electronic unit 1 is accommodated inhousing 2 and attachmentelectronic unit 1 is connected at itspower receiving inlet 6 withpower supply plug 9, then attachmentelectronic unit 1 can be prohibited from being pulled out fromhousing 2. Therefore, attachment electronic unit can be prevented from being pulled out from the set ofelectronic equipment 31 if attachmentelectronic unit 1 is supplied with power throughpower supply plug 6. When attachment electronic unit shall be replaced with another attachment electronic unit due to trouble or the like, the user detachespower supply plug 9 frompower receiving inlet 6 of attachmentelectronic unit 1 housed inhousing 2, and thereafter pulls attachmentelectronic unit 1 out fromhousing 2. - According to the set of
equipment 31 having the above-described pull-out preventing structure, ifpower supply plug 9 is not detached frompower receiving inlet 6, the mechanism for preventing attachmentelectronic unit 1 from being pulled out fromhousing 2 cannot be released. Therefore, ifpower supply plug 9 is connected to power receivinginlet 6, attachmentelectronic unit 1 can be positively prevented from being pulled out fromhousing 2. Accordingly, if the user of the equipment unintentionally tries to pull attachmentelectronic unit 1 out fromhousing 2 without detachingpower supply plug 9 frompower receiving inlet 6, the pull-out preventing mechanism effectively prevents attachmentelectronic unit 1 from being pulled out fromhousing 2. That is, the user is allowed to pull attachmentelectronic unit 1 out fromhousing 2 only when power supply to attachmentelectronic unit 1 is completely cut. - Accordingly, when attachment
electronic unit 1 is replaced with another attachment electronic unit or so, the set of electronic equipment is free from excessive current flow or noise generation at another place different from attachmentelectronic unit 1. As a result, energized circuits in the set of electronic equipment can be protected from influence coming from excessive current flow or noise generation, with the result that the energized circuits becomes free from a malfunction. Ifpower supply plug 9 is pulled out frompower receiving inlet 6 under condition thatpower switch 8 is turned on, a malfunction does not occur at a circuit under operation in another place different from attachmentelectronic unit 1. Owing to these merits, the set electronic equipment having replaceable attachmentelectronic unit 1 can be free from deterioration in performance thereof, and hence the user of the equipment can operate the equipment with reliance. - While a preferred embodiment of the present invention has been described using specific terms, such description is for illustrative purpose only, and it is to be understood that changes and variations may be made without departing from the spirit or scope of the following claims.
Claims (13)
1. A pull-out preventing mechanism of an electronic unit for use in an electronic equipment including the electronic unit provided with an electric connecting part, a housing for accommodating the electronic unit so that the electronic unit can be attached to or detached from the housing, and a power supply cable having a plug to be connected to the electric connecting part, the pull-out preventing mechanism comprising:
an engaging arm attached to a vicinity of the electric connecting part on a face of the electronic unit so as to be rotatable on the face; and
an engaging portion provided on the housing so that the engaging portion can be engaged with one end of the engaging arm when the plug is connected to the electric connecting part, whereby the electronic unit can be prevented from being pulled out from the housing, and that the engaging portion can be disengaged from the end of the engaging arm by the rotation of the engaging arm only when the plug is detached from the electric connecting part.
2. A pull-out preventing mechanism according to , wherein the electric connecting part on the electronic unit is formed to have an insertion recess into which the plug can be inserted, and
claim 1
the engaging arm is arranged to have a lid portion which can cover at least a part of the insertion recess when the plug is detached from the insertion recess, whereby the plug is prohibited from being inserted into the insertion recess.
3. A pull-out preventing mechanism according to , wherein the engaging arm is formed into a V-letter shape having one end portion, the other end portion, and a bent portion, the one end portion of the engaging arm serving as an insertion portion which is inserted into a slot provided in the engaging portion of the housing so as to make engagement with the engaging portion, the other end portion of the engaging arm serving as the lid portion, and the bent portion serving as a rotation pivot at which the engaging arm is supported so as to be rotated around the pivot.
claim 2
4. A pull-out preventing mechanism according to , wherein the housing is formed to have an opening on one face of the housing through which the electronic unit can be inserted into the housing, and the engaging portion is provided at a part of the circumference of the opening on the face of the housing, and
claim 3
the engaging arm is rotatably provided on the electronic unit so that the engaging arm can be projected by the rotation of the engaging arm from an edge of the face of the electronic unit on which the electric connecting part is provided, whereby the insertion portion of the engaging arm is inserted into the slot of the engaging portion.
5. A pull-out preventing mechanism according to , wherein the housing is formed to have a projecting portion on which the engaging arm abuts to be placed at a first stop position in which the lid portion of the engaging arm covers at least a part of the insertion recess when the plug is disengaged from the insertion recess of the electric connecting part.
claim 4
6. A pull-out preventing mechanism according to , wherein the engaging arm is arranged such that when the engaging arm is rotated so that the insertion portion of the engaging arm is inserted into the slot of the engaging portion provided on the housing, the lid portion of the engaging arm entirely opens the insertion recess of the electric connecting part, and when the insertion portion is inserted into the slot and the plug is connected to the electric connecting part, the engaging arm can be placed at a second stop position in which the lid portion of the engaging arm abuts on the plug.
claim 5
7. An electronic equipment comprising:
an electronic unit provided with an electric connecting part;
a housing for accommodating the electronic unit so that the electronic unit can be attached to or detached from the housing;
a cable having a plug to be connected to the electric connecting part; and
pull-out preventing means arranged such that when the plug is connected to the electric connecting part, the pull-out preventing means engages with the housing so as to prevent the electronic unit from being pulled out from the housing, and when the plug is detached from the electric connecting part, the pull-out preventing means can be disengaged from the housing.
8. An electronic equipment according to , wherein the pull-out preventing means is formed of an engaging arm attached to a vicinity of the electric connecting part on a face of the electronic unit so as to be rotatable on the face,
claim 7
the housing is formed to have an engaging portion which can be engaged with one end of the engaging arm, and
the engaging arm and the engaging portion are arranged such that when the engaging arm is rotated in one direction and the one end of the engaging arm is engaged with the engaging portion, the electronic unit can be prevented from being pulled out from the housing, and that only when the plug is detached from the electric connecting part, the engaging portion is allowed to be rotated in a direction opposite to that direction and the one end of the engaging arm can be disengaged from the engaging portion.
9. An electronic equipment according to , wherein the electric connecting part on the electronic unit is formed to have an insertion recess into which the plug can be inserted, and
claim 8
the engaging arm is arranged to have a lid portion which can cover at least a part of the insertion recess when the plug is detached from the insertion recess, whereby the plug is prohibited from being inserted into the insertion recess.
10. An electronic equipment according to , wherein the engaging arm is formed into a V-letter shape having one end portion, the other end portion, and a bent portion, the one end portion of the engaging arm serving as an insertion portion which is inserted into a slot provided in the engaging portion of the housing so as to make engagement with the engaging portion, the other end portion of the engaging arm serving as the lid portion, and the bent portion serving as a rotation pivot at which the engaging arm is supported so as to be rotated around the pivot.
claim 9
11. An electronic equipment according to , wherein the housing is formed to have an opening on one face of the housing through which the electronic unit can be inserted into the housing, and the engaging portion is provided at a part of the circumference of the opening on the face of the housing, and
claim 10
the engaging arm is rotatably provided on the electronic unit so that the engaging arm can be projected by the rotation of the engaging arm from an edge of the face of the electronic unit on which the electric connecting part is provided, whereby the insertion portion of the engaging arm is inserted into the slot of the engaging portion.
12. An electronic equipment according to , wherein the housing is formed to have a projecting portion on which the engaging arm abuts to be placed at a first stop position in which the lid portion of the engaging arm covers at least a part of the insertion recess when the plug is disengaged from the insertion recess of the electric connecting part.
claim 11
13. An electronic equipment according to , wherein the engaging arm is arranged such that when the engaging arm is rotated so that the insertion portion of the engaging arm is inserted into the slot of the engaging portion provided on the housing, the lid portion of the engaging arm entirely opens the insertion recess of the electric connecting part, and when the insertion portion is inserted into the slot and the plug is connected to the electric connecting part, the engaging arm can be placed at a second stop position in which the lid portion of the engaging arm abuts on the plug.
claim 12
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP35174299A JP2001168557A (en) | 1999-12-10 | 1999-12-10 | Electronic equipment and pull-out prevention structure of accessory unit therein |
JP351742/1999 | 1999-12-10 | ||
JP11-351742 | 1999-12-10 |
Publications (2)
Publication Number | Publication Date |
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US20010003684A1 true US20010003684A1 (en) | 2001-06-14 |
US6439917B2 US6439917B2 (en) | 2002-08-27 |
Family
ID=18419302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US09/729,919 Expired - Lifetime US6439917B2 (en) | 1999-12-10 | 2000-12-06 | Mechanism for preventing electronic unit from being pulled out from housing under condition that electronic unit is connected with plug |
Country Status (2)
Country | Link |
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US (1) | US6439917B2 (en) |
JP (1) | JP2001168557A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1420330A2 (en) * | 2002-11-13 | 2004-05-19 | Fujitsu Siemens Computers GmbH | Power source for an electrical device |
DE102013201674A1 (en) * | 2013-02-01 | 2014-08-07 | Robert Bosch Gmbh | High-voltage arrangement |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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US7097487B2 (en) * | 2005-01-21 | 2006-08-29 | Inventec Corporation | Fixture for an embedded unit of an electronic device |
JP4799036B2 (en) * | 2005-04-12 | 2011-10-19 | プライムアースEvエナジー株式会社 | Power supply |
US20060262492A1 (en) * | 2005-05-17 | 2006-11-23 | Tsai Tsung Y | Power supply of a computer with a power output device |
US7414860B1 (en) * | 2007-04-23 | 2008-08-19 | Super Micro Computer, Inc. | Power supply early warning device for pulling out a power plug |
JP4961010B2 (en) * | 2009-12-29 | 2012-06-27 | 東芝テック株式会社 | Desorption mechanism and electronic device using the same |
JP5075955B2 (en) * | 2010-08-23 | 2012-11-21 | シャープ株式会社 | Portable device |
CN102736701A (en) * | 2011-04-08 | 2012-10-17 | 鸿富锦精密工业(深圳)有限公司 | Power module |
KR101294625B1 (en) * | 2011-08-25 | 2013-08-08 | 김정중 | Air Sterillization Device |
TWI509383B (en) * | 2012-06-11 | 2015-11-21 | Fsp Technology Inc | Power device |
CN103490591B (en) * | 2012-06-11 | 2016-01-20 | 全汉企业股份有限公司 | Supply unit |
US9720460B2 (en) | 2014-04-28 | 2017-08-01 | Hewlett Packard Enterprise Development Lp | Power supply chassis including a release lever |
US9684346B2 (en) * | 2014-08-27 | 2017-06-20 | Hon Hai Precision Industry Co., Ltd. | Power supply |
CN106710468A (en) * | 2017-03-22 | 2017-05-24 | 苏州鑫强精密机械有限公司 | 360-degree circumferential rotating advertising board |
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JPH053414A (en) | 1991-06-25 | 1993-01-08 | Matsushita Electric Works Ltd | Automatic amplification factor adjustment circuit in optical sensor |
US5735701A (en) * | 1995-12-11 | 1998-04-07 | Intel Corporation | Locking power cable interface guard |
JP3470866B2 (en) | 1997-09-24 | 2003-11-25 | 矢崎総業株式会社 | Connector coupling device |
US5949652A (en) * | 1997-10-24 | 1999-09-07 | Dell U.S.A., L.P. | Computer power supply insertion and extraction apparatus and method |
-
1999
- 1999-12-10 JP JP35174299A patent/JP2001168557A/en active Pending
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2000
- 2000-12-06 US US09/729,919 patent/US6439917B2/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1420330A2 (en) * | 2002-11-13 | 2004-05-19 | Fujitsu Siemens Computers GmbH | Power source for an electrical device |
EP1420330A3 (en) * | 2002-11-13 | 2009-07-15 | Fujitsu Siemens Computers GmbH | Power source for an electrical device |
DE102013201674A1 (en) * | 2013-02-01 | 2014-08-07 | Robert Bosch Gmbh | High-voltage arrangement |
Also Published As
Publication number | Publication date |
---|---|
JP2001168557A (en) | 2001-06-22 |
US6439917B2 (en) | 2002-08-27 |
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