What is claimed is:
1. A computer enclosure comprising:
a chassis comprising a bottom panel, a front panel and a rear panel, and an extension plate extending rearward from the front panel; and
a support frame for supporting a motherboard in the enclosure, the support frame comprising separately formed first and second support members, the first support member being secured with the bottom panel and the extension plate, the second support member being secured between the first support member and the rear panel, a plurality of protrusions being provided on the first support member and a plurality of standoffs being provided on the second support member for cooperatively supporting the motherboard thereon.
2. The computer enclosure as claimed in claim 1, wherein the first support member is generally L-shaped, and comprises a horizontal plate spaced from and parallel to the bottom panel, and a vertical plate on which the protrusions are provided.
3. The computer enclosure as claimed in claim 2, wherein the vertical plate of the first support member defines a plurality of locking splits, and the second support member forms a plurality of first inserting tabs engagingly received in the locking splits, respectively.
4. The computer enclosure as claimed in claim 3, wherein the rear panel comprises a first flange extending forward from one side edge thereof, the first flange defines a locking slot, and the second support member forms a second inserting tab engaging in the locking slot.
5. The computer enclosure as claimed in claim 4, wherein the first flange provides a plurality of protrusions for supporting the motherboard thereon.
6. The computer enclosure as claimed in claim 2, wherein the vertical plate of the first support member forms a plurality of fasteners, and the extension plate forms a locking strip engaging with the fasteners.
7. The computer enclosure as claimed in claim 2 further comprising a storage device bracket, wherein the storage device bracket comprises a first side plate on which the horizontal plate of the first support member is supported, and a second side plate engaging with the extension plate.
8. The computer enclosure as claimed in claim 7, wherein a top portion of the first side plate is rolled to form a rolled beam, and a through hole is defined in the horizontal plate of the first support member and in the beam for extension of a fastener therethrough to fasten the horizontal plate and the first side plate together.
9. The computer enclosure as claimed in claim 2, wherein a bent plate depends from a distal edge of the horizontal plate of the first support member, the computer enclosure further comprises a top panel having a flange depending therefrom, and through holes are defined in the bent plate and in the flange for extension of fasteners therethrough to fasten the bent plate and the flange together.
10. The computer enclosure as claimed in claim 2, wherein the vertical plate perpendicularly forms a bent strip at a bottom edge thereof, and through holes are defined in the bent strip and in the bottom panel for extension of fasteners therethrough to fasten the bent strip and the bottom panel together.
11. The computer enclosure as claimed in claim 2, wherein a pair of openings is defined in the horizontal plate and the vertical plate respectively, for facilitating dissipation of heat from the motherboard.
12. The computer enclosure as claimed in claim 2, wherein openings are defined in the horizontal and vertical plates respectively for facilitating heat dissipation of the motherboard.
13. The computer enclosure as claimed in claim 1, wherein a size of the second support member is substantially less than a size of the motherboard.
14. A computer enclosure comprising:
a chassis comprising a bottom panel, a front panel and a rear panel;
a top panel covered on the chassis; and
a support frame for supporting a motherboard in the chassis, the support frame comprising separately formed first and second support members, the first support member being secured to the chassis, the second support member being secured between the first support member and the rear panel, a plurality of protrusions being provided on the first support member and a plurality of standoffs being provided on the second support member for cooperatively supporting the motherboard thereon.
15. The computer enclosure as claimed in claim 14, further comprising a storage device bracket, wherein the first support member comprises a horizontal plate supported on the storage device bracket and a vertical plate engaged with the bottom panel.
16. The computer enclosure as claimed in claim 15, wherein a bent plate depends from a distal edge of the horizontal plate of the first support member, a flange depends from the top panel, and through holes are defined in the bent plate and in the flange respectively for extension of fasteners therethrough to fasten the bent plate and the flange together.
17. The computer enclosure as claimed in claim 15, wherein the vertical plate of the first support member defines a plurality of locking splits, and the second support member forms a plurality of inserting tabs engagingly received in the locking splits, respectively.
18. The computer enclosure as claimed in claim 15, wherein the vertical plate of the first support member forms a plurality of fasteners, the front panel forms an extension plate extending rearwardly therefrom, and the extension plate forms a locking strip engaging with the fasteners.
19. A computer enclosure comprising:
a chassis including opposite front and rear panel, and a side panel perpendicular to both said front and rear panels;
an extension plate directly stamped rearwardly from the front panel and extending toward the rear pane and parallel to the side panel;
an opening formed in the front panel due to removal of said extension plate therefrom;
a motherboard support frame located beside the extension plate and including fastening means attached to a rear edge region of the extension plate; and
a drive bracket supportably attached to said extension plate and cooperating with said extension plate to defining a space in alignment with said opening in a front-to-back direction to allow installationusage of correspond drives.
20. The enclosure as claimed in claim 19, wherein said motherboard support frame is of an L-shaped configuration, and the drive bracket is of a U-shaped configuration with a step thereof.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A telescopic vacuum cleaner suction tube (1) with an outer tube (2), an inner tube (3) with snap-in depressions (7) that is telescopically arranged in the outer tube, an antitwisting mechanism (4d; 16) and an interlocking device with a snap-in element (15) that is disengaged from a snap-in depression (7) by an actuating element (5) situated about diametrically opposite thereof, wherein the interlocking device consists of a bow spring (6) that positively encompasses at least the inner tube (3) and once again engages into the nearest snap-in depression (7) of the inner tube (3) in the telescoping direction under the prestress of a spring, characterized in that the bow spring (6) consists of an annular spring of rectangular or circular cross-section that alternatively encompasses the inner tube (3) or a guide sleeve (4) or the outer tube (2), namely not only positively, but also non-positively, and in that the free ends (12, 13) thereof need to be spread apart by the actuating element (5) in order to lift the snap-in element (15) out of the snap-in depression (7) and thusly disengage the interlocked tubes.
2. The telescopic vacuum cleaner suction tube according to claim 1, characterized in that the free ends (12, 13) of the bow spring (6) are bent inward or outward in a funnel-shaped fashion in the vicinity of the actuating element (5).
3. The telescopic vacuum cleaner suction tube according to claim 1, characterized in that the snap-in depressions (7) of the inner tube (3) have a flat rectangular shape.
4. The telescopic vacuum cleaner suction tube according to claim 1, characterized in that the snap-in depressions (7) of the inner tube (3) are provided with the conventional shape of a graduated circle.
5. The telescopic vacuum cleaner suction tube according to claim 1, characterized in that the actuating element (5) is formed by a push-button (9) on the outer tube (2) that can be moved perpendicular to the longitudinal symmetry axis (8).
6. The telescopic vacuum cleaner suction tube according to claim 5, characterized in that the push-button engages into the funnel-shaped intermediate space (14) between the inwardly or outwardly bent ends (12, 13) of the bow spring (6) with its conical or wedge-shaped end (9a) that faces the bow spring (6), and in that the push-button is raised into a raised starting position within a surrounding housing (11) under the prestress of the bow spring (6) in the engaged position thereof.
7. The telescopic vacuum cleaner suction tube according to claim 5, characterized in that the push-button (9) for disengaging the interlocked tubes is pressed downward in the direction of the surface (3a) of the inner tube (3), namely into the funnel-shaped intermediate space (14) between the inwardly or outwardly bent ends (12, 13) of the bow spring (6), while the bow spring (6) is simultaneously spread apart such that the bow spring (6) with its diametrically opposite snap-in element (15) is disengaged from the snap-in depression (7) of the inner tube (3).
8. The telescopic vacuum cleaner suction tube according to claim 1, characterized in that the actuating element (5) consists of a slide (10) that is arranged on the outer tube (2) such that it can be moved parallel to the direction of the longitudinal symmetry axis (8).
9. The telescopic vacuum cleaner suction tube according to claim 8, characterized in that the slide (10) features two cone surfaces (10a, 10b) that adjoin the ramps formed by the bent ends (12, 13) of the bow spring (6) in a paired fashion and are connected to one another similar to an hourglass at their opposite pointed regions such that the bow spring (6) is spread apart when the slide (10) is moved parallel to the longitudinal symmetry axis (8) of the tubes (2, 3) in either direction of the double arrow (20).
10. The telescopic vacuum cleaner suction tube according to claim 8, characterized in that the cone surfaces (10a, 10b) form an angle a between 30\xb0 and 60\xb0 with a plane extending through the longitudinal symmetry axis (8).
11. The telescopic vacuum cleaner suction tube according to claim 9, characterized in that the plane cone surfaces (10a, 10b) are realized in the form of a part of a quadrangular pyramid.
12. The telescopic vacuum cleaner suction tube according to claim 9, characterized in that the cone surfaces (10a, 10b) consist of partial generated surfaces of two straight circular cones.
13. The telescopic vacuum cleaner suction tube according to claim 1, characterized in that the actuating element (5) in the form of a push-button (9) as well as in the form of the slide (10) is arranged on a widened end region (2c) of the outer tube (2) that faces the inner tube (3).
14. The telescopic vacuum cleaner suction tube according to claim 8, characterized in that the slide (10) is provided with guide grooves (22, 23) on its surface area (24) that faces the free outwardly bent ends (12, 13) of the bow spring (6), and in that the ends (12, 13) are guided in said guide grooves and spread apart when the slide is displaced parallel to the longitudinal symmetry axis (8) of the tubes (2, 3) in either direction of the double arrow (21).
15. The telescopic vacuum cleaner suction tube according to claim 1 with a bow spring of circular cross section, characterized in that the slide (10) is realized in the form of a sliding sleeve (10c) that completely encompasses the outer tube (2) and features a safety projection (27) on its inner surface (26) that lies closest to the snap-in element (7), wherein said safety projections engage underneath the snap-in element (15) in exactly its central region in the engaged position.
16. The telescopic vacuum cleaner suction tube according to claim 15, characterized in that the safety projection (27) is rounded and provided with conical lateral surfaces in the direction of the snap-in element (15).
17. The telescopic vacuum cleaner suction tube according to claim 15, characterized in that the curved path of the guide grooves (22, 23) is adapted to the geometry of the safety projection (27).
18. The telescopic vacuum cleaner suction tube according to claim 1, characterized in that the bow spring (6) consists of spring steel.
19. The telescopic vacuum cleaner suction tube according to claim 1, characterized in that the bow spring (6) is arranged on a circumferential groove (40) of a guide sleeve (4) such that it can be spread apart, wherein said guide sleeve is stationarily arranged between the outer tube and the inner tube (2, 3), namely at the end of the outer tube (2) in a widened end region (2c) of the outer tube (2).
20. The telescopic vacuum cleaner suction tube according to claim 1, characterized in that the antitwisting mechanism (4d, 16) conventionally consists of a longitudinal groove (16) in the inner tube (3) that extends parallel to the longitudinal symmetry axis (8) and into which a projection (4d) of the guide sleeve (4) positively engages 21. The telescopic vacuum cleaner suction tube according to claim 20, characterized in that the longitudinal groove (16) is arranged in the region of the locking projections (7) in the inner tube (3).