CA1275777C

CA1275777C - Corner boarding arrangements

Info

Publication number: CA1275777C
Application number: CA000505797A
Authority: CA
Inventors: Helge Bo
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-04-03
Filing date: 1986-04-03
Publication date: 1990-11-06
Anticipated expiration: 2007-11-06

Abstract

Abstract Corner boarding arrangement including two plate-shaped elements (10a, 10b, 18a, 18b), especially boarding members, which form an angle (a), usually 90°, with each other, and an angled member (11), one leg (12) of which extends substantially at right angles to the main plane of one plate-shaped element (10b, 18b) while projecting away from the other plate-shaped element (10a, 18a), and the other leg (13) of which extends substantially at right angles to the main plane of the other plate-shaped element (10a, 18a) while projecting away from the one plate-shaped element (10b, 18b). Legs (12, 13) of the angled member (11) form abutments against a surface (14a, 14b), which is rigidly connected to the respective plate-shaped element and is detachably fastened to the latter.

Description

\ ~.2~;777 CORNER BOARDING ARRANGEMENTS

This invention relates to corner boarding arrangements.
In the boarding of posts, girders and the like, there are employed according to known engineering practice, which has changed little the last 10-20 years, boarding elements which are held together by means of various collars or the like which are fastened with relatively short intermediate spaces round the boarding and thereby hold the individual boarding elements in position. This solution is very demanding on labour and time in that the collars have to be nailed to the boarding elements and have to be renovated after use.
By the very fact that the boarding work in many casting operations constitutes a substantial portion of the costs, improvements are constantly being sought after but, as mentioned above, without significant changes having been made in engineering in recent years.
The need for improvements is thus apparent and the object of the present invention is to effect boarding of corners more rapidly and simpler and hence cheaper.
Accordln~:ly, the present invelltion resides in a corner boarding arrangement comprising (a) first and second plate means disposed at an angle to each other, (b) an angled member having ~irst and second legs forming an angle opposite and substantially equal to said angle between said first and second plate means, ~, "` ~;;~757~7 said first leg extending substantially at right angles to the main plane of said second plate means while projecting away from said first plate means and said second leg extending suhstantia]ly a-t right angles to the main plane of said first plate means while projecting away from said second plate means, and (c) first and second auxiliary members detachably fastened to their respective first and second plate means to form extensionsthereof and having adjacent ends dis-posed at said angle between said first and secondplate means, and said first and second legs of said angled member being detachably fastened to said second and first auxiliary members respectively.
In order that the invention can be more clearly understood, convenient embodiments thereof will now be described, by way of example, with reference to the accompanying drawings in which:
Fig. 1 is a cut~off horizontal section of a corner boarding arrangement employed for boarding a corner in a post by means of boarding cassettes, Fig. 2 is a similar cut-off horizontal section to Fig. 1 where the boarding is constructed of boarding members, and Fig. 3 is a perspective view of the arrangement of Fig. 2.
Referring to Fig. 1, the angle a between the boarding cassettes is 90.
Each boarding cassette consists oE two plates lOa, lOa' and lOb, lOb' respectively, whtch are usually made of plywood and which ilave a cel-l.a:itl spacirlg, for example 10 ~m. roll~ eclcil ol:her. Each oE these plates can alterncately face towards Lhe concrete. Between the surfaces, there is arranged along their edges a U-shaped element, legs oE which, such as the leg 16a, project outwarclly as an extension of the p]ates. In addition, the element is designed with an inwardly projecting flange which the plywood plates form an ~7~7~

abutment against and which they are detachably fastened to by means of, for example, rivets.
On boarding a corner, two boarding cassettes 10a, 10b are mounted at an angle a of 90 to each other.
something which, moreover, is the most customary. An angled member 11, legs 12, 13 of which form an angle which is as large as, but opposite relative to, the angle a between the cassettes 10a, 10b, is arranged between the outwardly projecting legs of each boarding cassette. The member 11 forms thereby an abutment against the bottom 14a, 14b of the U-shaped element of the boarding cassette and forms with its free end 15a, 15b an abutment against the outwardly projecting leg 16a, 16b of the U-shaped element. At the top point of the lS angled member 11 this is angled in the form of steps so that it forms an abu-tment against the U-shaped element which is an extension of the inner plate 10a, 10b. In this way, the angled member will be arranged safely in position between the outwardly projecting members and is fixed to the bottom 14a, 14b of the U-shaped element by means of detachable bolts 17 or clamps. As a result, the unit which consists of the two boarding cassettes 10a, 10b and the angled member 11 will be held rigidly together with minimal possibi-lities for displacement relative to each other. Also,while the angled member is usually made of aluminium, it can also be made of other materials, for example, galvanised steel. The breadth of the member 11 can be varied from a relative]y narrow ~Itr;p l:o the whoLc length or ~readl:h Oe l'hC! boardlng cassette ancl the length of each leg corresE)onds to the distance between the plates of the cassette.
In Fig. 2, there are employed boarding members 18a, l~b instead of boarding cassettes. Outwardly from each boarding mernber, there projects substantially at right angles to this, an elemen-t l9a, l9b with pro-jections 20a, 20b which the boarding members are ~ 2757~7 detachably fixed to, for example, by means of rivets.
The elements l9a, l9b extend over the whole respective length and breadth of the boarding member. A certain section which is not critical projects outwardly from the boarding member but is adapted to the length of legs 12, 13 of the angled member 11. At its free end, each of the elements l9a, 19b is angled so that the free end of the member 11 forms an abutment against angled portion 21a, 21b of the element l9a, l9b which extends in an opposite direction relative to projection 20a, 20b of the element. In a corresponding manner to the embodiment of Fig. 1, the angled member is fixed to the element l9a, l9b by means of bolts 22 or rivets so that the member 11 can be detached in a simple manner from the element l9a, l9k after use. Also in this embodiment, there is provided a reliable and good bracing and locking.
In Fig. 3, it is clearly evident how the angled member 11 is disposed relative to the elements l9a, l9b. In the opposite direction relative to the angled portion 21a, 21b, there projects a second angled portion 23a, 23b which functions as a support for rivets so that they are not able to become displaced outside and thereby no longer lock together legs of the angled member 11 and the elements l9a, l9b.
While the invention is described in connection with boarding, either by means of boarding cassette or boarding members, it can be applied in the production of dismountable containers or hoxe9 oE many di~ferent types. Such all applicat:ion can prove to be very interesting because of the great flexibility which the arrangement of the invention makes possible.

Claims

1. Corner boarding arrangement comprising:
(a) first and second plate means disposed at an angle to each other, (b) an angled member having first and second legs forming an angle opposite and substantially equal to said angle between said first and second plate means, said first leg extending substantially at right angles to the main plane of said second plate means while projecting away from said first plate means and said second leg extending substantially at right angles to the main plane of said first plate means while projecting away from said second plate means, and (c) first and second auxiliary members detach-ably fastened to their respective first and second plate means to form extensions thereof and having adjacent ends disposed at said angle between said first and second plate means, and said first and second legs of said angled member being detachably fastened to said second and first auxiliary members respectively.

2. The arrangement of claim 1, wherein the first and second auxiliary members have ends opposite their adjacent ends which are angled to abuttingly receive free ends of said angled member.

3. The arrangement of claim 1, wherein the angled member has a stepped portion between its first and second legs which abuttingly conforms to the contour of the adjacent ends of the first and second auxiliary members.

4. The arrangement of claim 2, wherein each of the plate means is in the form of a boarding cassette made up of two parallel plates held in spaced apart relation by a substantially U-shaped element con-stituting a respective one of said first and second auxiliary members, inner legs of said U-shaped ele-ments forming the adjacent ends of said auxiliary members while outer legs of said U-shaped elements form the opposite angled ends.

5. The arrangement of claim 1, 2 or 3, wherein the first and second plate means are arranged at an angle of substantially 90° with respect to each other.