Sectional support member |
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| 申请号 | US40645073 | 申请日 | 1973-10-15 | 公开(公告)号 | US3908943A | 公开(公告)日 | 1975-09-30 |
| 申请人 | MARLER HALEY EXPO SYSTEMS LIMI; | 发明人 | BANNISTER BRIAN CHARLES; | ||||
| 摘要 | A display system comprises a plurality of support members each comprising spaced apart body members secured together by connectors, each connector having a catch which corresponds in configuration with a body member, in which a mounting peg of a display panel of the system can be mounted, the catch being rotatable from a first position to free a passage for the mounting peg to a second position in which the mounting peg, and thus the panel, is secured in position in the body member. | ||||||
| 权利要求 | 1. A support member for a display system, comprising: a plurality of elongate body members, each body member having a central opening at each end and a regular surface profile in plan, said profile including a plurality of arms each of which includes receiving means in which display members of said display system may be received and supported; and connector means including elongate spigot means adapted to be engaged with a force fit in a said central opening of one of said body members, said connector means also including catch means intermediate the length thereof, said catch means having a profile corresponding with that of the body members and being rotatable relative to said spigot means between one position in which display members can be received in and dismounted from said arms and a second position in which said display members are secured in position in said arms whereby the display members cannot be removed from the arms. 2. A support member as defined in claim 1, including latch means adapted to engage part of said catch means, whereby the latch means can hold said catch means in said second position. 3. A support member as defined in claim 2, wherein said connector means includes transverse blind bore means and said latch means comprises a reciprocable member, said reciprocable member being mounted in said blind bore means. 4. A support member as defined in claim 3, wherein said reciprocable member comprises a ball, and wherein there is spring means mounted in said blind bore means, said blind bore means being formed in said spigot means, said spring means being adapted to urge said ball towards said catch means, said catch means having an internal surface in which there are symmetrically disposed recesses, said ball being arranged to engage in one of said recesses at a time. 5. A support member as defined in claim 2, wherein said connector means includes transverse blind bore means and said latch comprises a reciprocable member, said reciprocable member being mounted in said blind bore means, and wherein said reciprocable member comprises a ball, and wherein there is spring means mounted in said blind bore means, said spring means being adapted to urge said ball towards said rotatable member means, said catch means having an internal surface in which there are symmetrically disposed recesses, said ball being arranged to engage in one of said recesses at a time, said catch means having symmetrically disposed arm means, said arm means comprising a surface configuration of said catch means, one of said recesses lying on the radius of each arm means on said internal surface, and the remainder of said recesses lying between said first mentioned recesses at substantially 45* to the radius of the arm means. 6. A support member as defined in claim 5, wherein the first mentioned recesses are deeper than said remaining recesses, said first mentioned recesses defining said second position and the remaining recesses defining said one position, and wherein there is shoulder means on the internal surface of said catch means, said shoulder means lying between adjacent recesses, whereby said ball is urged into said blind bore means by said shoulder means when said catch means is rotated. 7. A support member as defined in claim 1, wherein the elongate body member includes boundary wall defining the outer limits of said central opening, and wherein there is symmetrically disposed groove means, said groove means being on said boundary wall means forming said central opening. 8. A support member as defined in claim 7, wherein there are channel means formed in the elongate body member, said channel means being symmetrically disposed, one channel means being between each pair of adjacent groove means, each arm having said receiving means therein, said channel means merging at the outer end thereof with said receiving means of the respective arm, and the channel means merging at the innEr end thereof with the central opening. 9. A support member as defined in claim 1, wherein each said body member defines bore means extending therethrough, said bore means defining said receiving means for receiving said connector means and wherein there is boundary wall means, said boundary wall means defining the outer limits of said bore means, and wherein there is symmetrically disposed groove means, said groove means being on said boundary wall means in said bore means, and further including channel means, said channel means being symmetrically disposed, one channel means being between each pair of adjacent groove means, said channel means merging with said receiving means of said arms, and wherein there is a device comprising part of said connecting means for preventing relative rotation between said body member and said spigot means when said spigot means is received in said central opening. 10. A support member as defined in claim 9, wherein said device comprises a flange adapted to be received in one of said groove means. 11. A support member as defined in claim 9, wherein said device comprises a plate which projects from said spigot means and is adapted to engage in one of said channel means. 12. A support member as defined in claim 9, wherein said device comprises a pin projecting from said spigot means and is adapted to be received in one of said channel means. 13. A support member as defined in claim 1, wherein there is foot connector means for supporting the support member in use. 14. A support member as defined in claim 1, wherein said body member has a cross-shaped cross section defined by a center portion and four of said arms projecting radially outwardly from said center portion, said central opening being formed in said center portion and each of said receiving means comprising a bore formed in each of said arms. 15. A support member as defined in claim 14, wherein each said bore and said central opening are in open communication with one another by means of an intermediate channel-shaped opening. 16. A support member according to claim 1, wherein said elongate spigot means includes first and second shaftlike end portions interconnected by an intermediate enlarged shoulder portion, and said catch means being rotatably supported on said spigot means directly adjacent said shoulder portion, and locking means mounted on said spigot means and coacting with said body member for preventing rotation of said spigot means relative to said body member when said spigot means is inserted into the central opening of said body member, whereby only said catch means is rotatable relaive to said body member. 17. A support member according to claim 16, further including spring-urged detent means coacting between said spigot means and said catch means for resiliently maintaining said catch means in either of said one or second positions. |
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