IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0817400
(2001-03-27)
|
우선권정보 |
JP-0096769 (2000-03-31) |
발명자
/ 주소 |
- Nagata, Futoshi
- Otani, Koji
|
출원인 / 주소 |
- Mitsumi Electric Co., LTD
|
대리인 / 주소 |
Whitham, Curtis, and Christofferson, P.C.
|
인용정보 |
피인용 횟수 :
11 인용 특허 :
4 |
초록
▼
In a shield case for housing an electronic equipment therein, a plurality of metal plates include a top plate, a bottom plate, a front plate, a rear plate, a pair of side plates, which are assembled to one another in a box-like shape. A projection is formed on an outer face of the rear plate. A stop
In a shield case for housing an electronic equipment therein, a plurality of metal plates include a top plate, a bottom plate, a front plate, a rear plate, a pair of side plates, which are assembled to one another in a box-like shape. A projection is formed on an outer face of the rear plate. A stopper projection is formed on an outer face of each side plate. A rear face holding piece extends downwardly from a rear edge of the top plate. The rear face holding piece is formed with a holding member at a lower end portion thereof. The holding member elastically abuts on the outer face of the rear plate, after climbing over the projection. Side face holding pieces extend downwardly from side edges of the top plate. Each side face holding piece is formed with a notched portion at a lower end portion thereof. The notched portion includes a guide groove for receiving the stopper projection in accordance with the rearward movement of the top plate when the holding member climbs over the projection, and an engagement groove extending forward from an upper end of the guide groove, for engaging with the stopper projection in accordance with the forward movement of the top plate when the holding member abuts on the outer face of the rear plate after climbing over the projection.
대표청구항
▼
In a shield case for housing an electronic equipment therein, a plurality of metal plates include a top plate, a bottom plate, a front plate, a rear plate, a pair of side plates, which are assembled to one another in a box-like shape. A projection is formed on an outer face of the rear plate. A stop
In a shield case for housing an electronic equipment therein, a plurality of metal plates include a top plate, a bottom plate, a front plate, a rear plate, a pair of side plates, which are assembled to one another in a box-like shape. A projection is formed on an outer face of the rear plate. A stopper projection is formed on an outer face of each side plate. A rear face holding piece extends downwardly from a rear edge of the top plate. The rear face holding piece is formed with a holding member at a lower end portion thereof. The holding member elastically abuts on the outer face of the rear plate, after climbing over the projection. Side face holding pieces extend downwardly from side edges of the top plate. Each side face holding piece is formed with a notched portion at a lower end portion thereof. The notched portion includes a guide groove for receiving the stopper projection in accordance with the rearward movement of the top plate when the holding member climbs over the projection, and an engagement groove extending forward from an upper end of the guide groove, for engaging with the stopper projection in accordance with the forward movement of the top plate when the holding member abuts on the outer face of the rear plate after climbing over the projection. herein the frame includes bracket support arms depending from the front panel, each bracket support arm having a terminal end with one of leading apertures thereon, the leading apertures pivotably receiving a pivot pin therethrough. 11. The track apparatus of claim 10 wherein the frame includes trailing-idler support arms extending from the rear panel, each trailing-idler support arm having one of the trailing apertures thereon, the trailing apertures rotatably receiving a trailing-idler axle therethrough. 12. The track apparatus of claim 1, wherein the frame further comprises a leading-bogey mount for rotatably supporting a leading-bogey wheel which engages the flexible track. 13. The track apparatus of claim 12 wherein to side portions are connected by a rigid leading-bogey cross-member extending between the first side portion adjacent to the leading-bogey mount and the second side portion adjacent to the leading-bogey mount. 14. The track apparatus of claim 13 wherein the leading-bogey cross-member is a leafing-bogey axle shroud. 15. The track apparatus of claim 14 wherein the leading-bogey mount is a leading- bogey axle and the leading-bogey axle-shroud is a sleeve through which the leading bogey axle extends. 16. The track apparatus of claim 12 wherein the frame further comprises a trailing-bogey mount for rotatably supporting a trailing-bogey wheel which engages the track. 17. The track apparatus of claim 16 wherein the side portions are connected by a rigid trailing-bogey cross-member extending between the first side portion adjacent to the trailing-bogey mount and the second side portion adjacent to the trailing-bogey mount. 18. The track apparatus of claim 17 wherein the trailing-bogey cross-member is a trailing-bogey axle shroud. 19. The track apparatus of clam 18 wherein the trailing-bogey mount is a trailing- bogey axle and the trailing-bogey axle-shroud is a sleeve through which the trailing-bogey axle extends. 20. In a track apparatus including (a) a continuous flexible track having upper and lower lengths and an inner surface, (b) a plurality of wheels engaging the inner surface of the track, including a drive wheel having a upper circumferential potion engaging only a middle portion of the upper length of the track, leading and trailing idler wheels, and at least one bogey wheel engaging only a middle portion of the lower length of the track, and (c) a frame for mounting the wheels; the improvement wherein: the flame has a uni-body construction such that it includes fixed-mounts in fixed relative positions, each fixed-mount defining an axis, the drive wheel is rotatably mounted to one of the fixed-mounts and turns on the respective fixed-mount axis, one of the idler wheels is rotatably mounted to one of the fixed-mounts and turns on the respective fixed-mount axis, the at least one bogey wheel is rotatably mounted to one of the fixed-mounts and turns on the respective fixed-mount axis, and an idler-mounting bracket is pivotably mounted to another of the fixed-mounts and pivots on the respective fixed-mount axis, the bracket having an idler-mount defining an idler-mount axis at which the other idler wheel is rotatably mounted in variable positions with respect to the frame. 21. The track apparatus of claim 20 wherein the frame defines a lateral recess receiving the drive wheel. 22. The track apparatus of claim 20 wherein the frame includes a spindle hub for rotatably receiving an axle of a vehicle therein. 23. The track apparatus of claim 20 wherein the fixed-mounts comprise apertures for receiving axles therethrough. 24. The track apparatus of claim 20 wherein the trailing idler wheel is rotatably mounted to one of the fixed-mounts and the leading wheel is rotatably mounted to the idler-mount. 25. The track apparatus of claim 24 wherein the trailing idler wheel comprises a pair of axially-aligned wheels and the leading idler wheel comprises a pair of axially-aligned wheels. 26. A track apparatus mounta ble on an rotatable axle of a vehicle, comprising: a continuous flexible track having upper and lower lengths and an inner surface, a drive wheel structure mountable on the axle for rotational movement therewith and having an upper circumferential portion engaging the inner surface of the flexible track along only a middle portion of the upper length; a frame of uni-body construction, the frame including a bracket support arm and a trailing-idler support arm, the trailing-idler support arm defining a trailing-idler mount having a trailing-idler rotational axis passing through paired apertures and a cross-member extending between the paired apertures and the bracket support arm defining a bracket mount having a bracket pivot axis; a bracket pivotably mounted on the bracket mount so that it pivots on the bracket pivot axis, the bracket having a leading-idler support defining a leading-idler rotational axis; a leading-idler wheel mounted to the leading-idler support and turning on the leading-idler rotational axis, the leading-idler wheel engaging the flexible track; and a pair of aligned trailing-idler wheels mounted to the trailing-idler mount and turning on the trailing-idler rotational axis, the trailing-idler wheels defining an inter-wheel space therebetween and engaging the flexible track, the cross-member positioned in the inter-wheel space. 27. The track apparatus of claim 26 wherein the frame includes at least on bogey mount located between the leading-idler mount and trailing-idler mount and having a bogey rotational axis, and further comprising at least one bogey wheel rotatably mounted to the at least one bogey mount and turning on the bogey rotational axis, the at least one bogey wheel engaging only a middle portion of the lower length of the track. 28. The track apparatus of claim 26 wherein the frame includes first and second side portions defining a drive wheel receipt well therebetween for receiving the drive wheel. 29. The track apparatus of claim 28 wherein each mount comprises a pair of axially aligned apertures, the pair defined by one aperture in the first side portion and one aperture in the second side portion. 30. The track apparatus of claim 29 wherein the side portions are connected by cross-members which extend between the side portions adjacent to the paired aperture. 31. The track apparatus of claim 30 wherein the cross-members are shrouds. 32. The track apparatus of claim 31 wherein each mount is an axle and each shroud is a sleeve through which a mount passes.
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