US4035977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural element
Assignee: Individual
•
Filing: 1976-01-22
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Granted: 1977-07-19
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Expires: 1996-01-22
Abstract
Abstract A structural element includes a body having a square or rectangular cross-sectional configuration. The body, which has four sides and a pair of oppositely directed lateral or end faces, is provided with connecting means which enables a pair of structural elements to be connected with one another. The connecting means includes undercut grooves and a groove of this type is provided in each of the sides of the body and in one of the lateral faces thereof. The connecting means further includes an undercut lug which is provided at the other lateral face of the body. The lug and grooves are configurated such that the lug of one structural element can be slidably received in the grooves of another structural element thereby joining the elements. The connecting means also includes a pair of slots and one slot is provided in the vicinity of each lateral face of the body. The slots are open at the outer circumferential surface of the body and also at the respective lateral faces of the body. The slots are adapted to receive keys when a pair of structural elements are brought into engagement. The wedging of the keys into the slots provides for a firmer engagement of the structural elements. In this manner, it is possible to compensate for tolerance variations.
Inventors
- 👤 Artur Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:33
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/10; A63H33/105; A63H33/06; A63H33/08; A63H33/082
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
201 words
A structural element, particularly for the construction of model structures, comprising a body having a periphery and a pair of spaced end portions; connecting means provided for said body for connecting a pair of structural elements with one another, said connecting means including at least one projection having outer surface portions provided at one of said end portions, and at least one groove having inner surface portions formed in said periphery and adapted to receive a projection similar to said one projection for free sliding movement of said respective surface portions relative to each other; and means for urging said respective surface portions towards each other to thereby arrest said structural elements in a selected position relative to each other, said urging means including at least one slot in said body which is open at said periphery and at an end portion of said body and which extends along a portion of said body, and a key which is adapted to be received in said one slot for displacing said respective surface portions into frictional engagement with each other when a pair of structural elements is brought into engagement, whereby variations in the manufacturing tolerance of the structural element are compensated.
Claim 2
Dependent Claim
201 words
A structural element, particularly for the construction of model structures, comprising a body having a periphery and a pair of spaced end portions; connecting means provided for said body for connecting a pair of structural elements with one another, said connecting means including at least one projection having outer surface portions provided at one of said end portions, and at least one groove having inner surface portions formed in said periphery and adapted to receive a projection similar to said one projection for free sliding movement of said respective surface portions relative to each other; and means for urging said respective surface portions towards each other to thereby arrest said structural elements in a selected position relative to each other, said urging means including at least one slot in said body which is open at said periphery and at an end portion of said body and which extends along a portion of said body, and a key which is adapted to be received in said one slot for displacing said respective surface portions into frictional engagement with each other when a pair of structural elements is brought into engagement, whereby variations in the manufacturing tolerance of the structural element are compensated.
Claim 3
Dependent Claim
42 words
An element as defined in claim 1, wherein an additional slot similar to said one slot is provided in said body, said additional slot opening to the end portion of said body which is opposite that to which said one slot opens.
Claim 4
Dependent Claim
64 words
An element as defined in claim 2, said body having four sides, and said end portions comprising lateral faces of said body; and wherein a groove similar to said one groove is formed in each of said sides and in the lateral face opposite that which is provided with said one projection, said grooves and said one projection all being formed with an undercut.
Claim 5
Dependent Claim
16 words
An element as defined in claim 3, wherein said body has a substantially rectangular cross-sectional configuration.
Claim 6
Dependent Claim
15 words
An element as defined in claim 3, wherein said has a substantially square cross-sectional configuration.
Claim 7
Dependent Claim
49 words
An element as defined in claim 3, wherein the slot which opens to the lateral face having said one projection extends transversely to said one projection and the slot which opens to the opposite lateral face extends in the same direction as the groove formed in the latter face.
Claim 8
Dependent Claim
80 words
An element as defined in claim 3, wherein said grooves are formed in such a manner that, when a pair of structural elements are arranged with a groove of one adjacent a groove of the other, the structural elements are capable of being connected via the adjacent grooves using a joining member which is slidably received in each of the adjacent grooves and which has a configuration corresponding to a pair of projections similar to said one projection placed back-to-back.
Claim 9
Dependent Claim
49 words
An element as defined in claim 1, said one groove being formed with an undercut and having a pair of spaced edges at said outer surface; and wherein said one slot opens to said one groove and the width of said slot substantially equals the spacing between said edges.
Claim 10
Dependent Claim
21 words
An element as defined in claim 1, wherein said body is adapted for use in the erection of toy building models.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-18 | 1981-01-17 | 1981-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-18 | 1985-01-17 | 1985-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-18 | 1989-01-17 | 1989-07-19 | $7700.00 | Window Closed / Lapsed |