CA2064656A1 - Knock-down shelf unit - Google Patents
Knock-down shelf unitInfo
- Publication number
- CA2064656A1 CA2064656A1 CA 2064656 CA2064656A CA2064656A1 CA 2064656 A1 CA2064656 A1 CA 2064656A1 CA 2064656 CA2064656 CA 2064656 CA 2064656 A CA2064656 A CA 2064656A CA 2064656 A1 CA2064656 A1 CA 2064656A1
- Authority
- CA
- Canada
- Prior art keywords
- vertical
- neck
- knock
- head portion
- slot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Landscapes
- Assembled Shelves (AREA)
Abstract
ABSTRACT
A knock-down shelving unit comprising a plurality of vertical posts, a plurality of horizontal members and a locking attachment for connecting the horizontal members to the vertical posts, the vertical posts being provided with a plurality of key hole shaped apertures oriented at an acute angle to vertical, and a head and stem portion adapted to extend from each of the horizontal members for interconnection with the key hole shaped apertures such that the vertical edge of each horizontal member is force fit connected to a respective one of the vertical posts.
A knock-down shelving unit comprising a plurality of vertical posts, a plurality of horizontal members and a locking attachment for connecting the horizontal members to the vertical posts, the vertical posts being provided with a plurality of key hole shaped apertures oriented at an acute angle to vertical, and a head and stem portion adapted to extend from each of the horizontal members for interconnection with the key hole shaped apertures such that the vertical edge of each horizontal member is force fit connected to a respective one of the vertical posts.
Description
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KNOCK-DOWN SHELF UNIT
Field of the Invention This invention relates in general to shelving units, and more particularly to a secure knock-down utility shelving system which may be readily as~sembled and disassembled by a user.
Backq~ound of the Invention It is known in the prior art to provide knock~down shelving units which may be as3embled and disassembled for ease o~ transportation. Such units are often used in warehouses and storage rooms and are ~abricated from sheet metal which may be roll ~ormed, stamped and cut to the desirPd shape for assembly. These units are typically pr~vided with four vertical cvrner posts and a plurality of horizontal mambers. The corner posts are often provided with a plurality of apartures for receiving screws or bolts to connect the horizont~l members thereto at user selected heights.
For example, Canadian Patent 1,256,069 (Hirsh Company) discloses a shelving assembly having a plurality of generally horizontal shelves which are connected to four support columns or posts by conventional bolts or nuts. Sp~ci~ically, each shelf is provided with a flange which defines, at its corners, one or more holes for receiving a bolt or screw which is then inserted through a selected hole or aperture in the vertical column or post.
One disadvantage of the prior art design disclosed in the Hirsh Patent is that there are a multiplicity of components required ~or assembly, includin~ the a~orementioned nuts and bolts, as well as pliers and screwdriver~, etc. Furthermore, it is possible for the nuts and bolts to become loosened over time, thereby resulting in potential instability of the ~helving assembly.
According to another prior art techniqu~, th~
horizontal members are connected to the vertical posts by .
KNOCK-DOWN SHELF UNIT
Field of the Invention This invention relates in general to shelving units, and more particularly to a secure knock-down utility shelving system which may be readily as~sembled and disassembled by a user.
Backq~ound of the Invention It is known in the prior art to provide knock~down shelving units which may be as3embled and disassembled for ease o~ transportation. Such units are often used in warehouses and storage rooms and are ~abricated from sheet metal which may be roll ~ormed, stamped and cut to the desirPd shape for assembly. These units are typically pr~vided with four vertical cvrner posts and a plurality of horizontal mambers. The corner posts are often provided with a plurality of apartures for receiving screws or bolts to connect the horizont~l members thereto at user selected heights.
For example, Canadian Patent 1,256,069 (Hirsh Company) discloses a shelving assembly having a plurality of generally horizontal shelves which are connected to four support columns or posts by conventional bolts or nuts. Sp~ci~ically, each shelf is provided with a flange which defines, at its corners, one or more holes for receiving a bolt or screw which is then inserted through a selected hole or aperture in the vertical column or post.
One disadvantage of the prior art design disclosed in the Hirsh Patent is that there are a multiplicity of components required ~or assembly, includin~ the a~orementioned nuts and bolts, as well as pliers and screwdriver~, etc. Furthermore, it is possible for the nuts and bolts to become loosened over time, thereby resulting in potential instability of the ~helving assembly.
According to another prior art techniqu~, th~
horizontal members are connected to the vertical posts by .
2~6~6 means of rivets. The rivets are inserted in vertically arranged slots in the vertical posts. In an e~fort to provide a secure connection, the distance from the side edge (i.e. vertical face) of the vertical post o the side edge of the slot is made ~lightly di~rence than the distance from the side ~dge (i.e. vertical edge) of the horizontal member to the neck of the rivet such that there is effectively no clearance between he rivet and the slot. Therefore, in order to install the rivet into the slot, the rivet must be hammered into place by hammering down on the horizontal member so as to distort the metal forming the side edge of the slot.
This latter prior art technique also suf~ers from the disadvantage that the shelving unit is difficult to assemble. Furthermore, the connection of the rivet and ~lot edge is in the form of 2 single point connection which may become loosened with time as with the prior art Hirsh unit, thereby resulting in potential instability of the shelving unit.
Summary of the Invention According to the present invention, a knock-down shelving unit is provided which is easy to assemble, has few assembly components, and is characterized by an interference fit between the horizontal memberæ and vertical posts resulting in extremely stable construction.
In particular, the knock-down shelving unit of the pr~ent invention comprises a plurality o~ vertical posts each in~luding a frontal vertical ~ace and a side vertical face perpendicular thereto. A plurality of horizontal members are provided each including a frontal face and a vertical edge at each opposite end thereof.
Attachment means are provided for connecting the horizontal members to the v~rtical posts, the attachment means comprising at least one first portion in one of either th~ ~rontal vertical fac~ of the vertical po~ka or the frontal v~rtical face of the horizontal members, and ' ' 2~6~65~
at least one second portion adapted to extend from the other one of the frontal vertical face of the vertical posts or the frontal vertical face o~ the horizontal members, wherein the at least one first portion comprises a generally key hole shaped aperture having a hole and slot extending therefrom at a predetermined acute angle to vertical, and the at least one second portion comprises a neck and a head portion extending from the neck, the head portion being cooperatively shaped ~or insertion throuqh the hole and the neck being cooperatlvely shaped to slide within the 510t, whereby upon inserting the neck portion through the hole the neck slides within the slot at the aforementioned predetermined acute angle until the vertical edge of the horizontal member engages the side vertical ~ace nf the vertical post and further sliding o~ the neck within the slot results in an interference ~it therebetween.
Brie~ DescriPtion of the Drawinqs A detailed descriptiQn o~ the invention is provided below with reference to the ~ollowing drawings, in which:
Figure 1 is a perspective view of the knock-down shelving unit of the present invention;
Fiyure 2 is an enlarged, fragmentary side elevakion Yiew of a vertical post, horizontal member and attachment means therebetween, in accordance with the preferred embodiment;
Figure 3 iæ a cross sectional view through III-III
in Figure 2; , Figure 4 is an enlarged, fragmentary, side elevation view of a horizontal member and vertical post in accordance with an alternative embodiment of the invention; and Figure 5 is a perspective view o~ attachment means for use with the preferred embodiment of Figure 4.
Detailed Desc~i~tion of the Preferred Embodiment Turning to Figure l, an assembled shelving unit 1 is shown comprising ~our vertical posts 3 each having a 6 ~ ~
frontal vertical face 2 and side vertical face 4, and to which a plurality of horizontal memhers ~ are attached.
The horizontal members 5 are each characterized by a frontal vertical face 6 and horizontal ledqes 8 ~shown in 5 detail with reference to Figures ~-5). Shelf units 7 rest on the horizontal members 5O Cross bracing ~embers (not shown) may be provided for additional ~tability.
However, the stable nature of the shelving unit constructed in accordance with the pre#ent invention substantially alleviates t~e requirement for cross bracing.
As shown in greater detail with ref~rence to ~igures 2 and 3, the frontal face 2 of each vertical post 3 is provided with a plurality o~ key hole shaped apertures 11 each comprising a generally circular hole 13 and a slot 15 oriented at an acute angle. This angle is preferably in the range of from 8 to 30, and more preferably is 10 from vertical.
Each horizontal member 5 comprises at least one attachment connector 17 which, according to the pre~erred embodiment, comprisQs a neck 19 and head portion 21.
Preferably, there are two attachment connectors 17.
Preferably, the neck 19 and head portion 21 are in the form of a rivet which may be intalled in the hori~ontal member 5 during fabrication thereof. Alternatively, the neck 19 and head portion m~y be stamped or punched ~rom the sheet metal horizontal member 5 so as to be integral therewith.
In operation, the attachment means 17 are inserted through respective key hole apertures 11 such that the head portion 21 passes through the circular hole 13 and the vertical edge 23 of the horizontal member 5 rests against the inside surface of the vertical side face 4 o~
the vertical post 3. Downward pressure is then applied to the horizontal member 5 such that the neck 19 slides downwardly within slot 15. Since the slot ~5 is disposed at an angle, the clearance between the neck 19 and the ' .
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edge of the slot 15 diminishes such that additional downward pressure results in an interface fit between horizontal member 5 and vertical post 3. The interference fit between horizontal member 5 and vertical post 3 extends over the full length of the slot 15 rather than forming a single point oonnection as in the prior art, thereby resulting in a firm interconnection.
However, the shelving unit assembled in accordance with the preferxed embodiment o~ Figures 2 and 3 may nonetheless be disassembled by applying upward ~orce to the horizontal member 5 for dislodging the horiæontal member from the vertical post 3.
As discussed above, the angle of inclination of the slot 15 may vary within a preferred range of acute angle~
(although a 10 angle of inclination has been determined through experimentation to be optimum). As the angle of inclination increases, the interface fit between the slot 15 and neck 19 becomes tighter but a larger tolerance is required. Conversely, as the angle o~ inclination of slot 15 is made less, the tightness of the interface fit reduces and the tolerance requirements are relaxed.
According to a successful prototype, the head portion 21 is in the form of a circular disk having a diameter of approximately 7/16" and a thickness o~
approximately .005". The neck 19 is in the form of a circular cylinder having a diameter of approximately 0.~40", and the length of the neck 19 from the base to the head portion 21 is approximately 0.08". The hole 13 is preferably circular and has a diameter of approximately 0.0500", and the slot 15 is generally oblong and ha~ a width of approximately 0.250" and a length of approximately 0.500" extending ~rom the centre of focus of the oblong to the center o~ the hole 13.
However, other dimensions of these components are possible.
Turning to the alternative embodiment shown in Figures 4 and 5, the construction of vertical post 3' is : . .
. .
20S~6 substantially the same as shown in Figure 2 with the exception that the slot 15' is o~ generally oblong shape (i.e. with a semi circular end portion)~ ~s an alternative to the rivet attachment means 17 of Figures 2 and 3, in the embodiment of Figures 4 and 5 an attachment means 17' is provided which i5 separable from the vertical post 3' and horixontal ~ember 5'. In particular, the attachment means 17' o~ Figure 5 is ~hown comprising a first head portion 21', a neck 1~' and further head portion 25, resulting in an ov~rall shape generally ~imilar to a yo-yo which is a adapted tv b~
inserted through key hole apertures 11' in the vertical post 3' and through ~urther key hole 27 in the horizontal member 5'. The neck 19' slides within slots 15' and 29 in response to downward pressure on the horizontal member 5'. As with the embodiment of Figures 2 and 3, movement of the neck 19' in the ~lots results in vertical sdge 23' wedging against the vertical face 4' of vertical post 3'.
When installed, the head portion 21' projects ~rom the apertures 11' and 27 adjacent vertical post 3' while the head portion 25 projects from the apertures 11' and 27 adjacent the horizontal member 5', thereby retaining the attachment means 17' within the two sets of apertures 11' and 27.
According to a successful prototyp~ of the alternative embodiment, the head portions 21 and 25 are in the form of circular disks one having a diameter of approximately 7/16" and the other slightly greater than tha diameter of the circular hole 13', and a thickness o~
approximately .005". The neck 19/ is in the form o~ a circular cylinder ha~ing a diameter of approximately .240", and the distance of the neck 19' separating heafl portions 21 and 25 is approximately 0.80". By making one o~ the head portions larger than the hole 13', the enlarged head portion is prevented from passing through the hole 13' a~ter the o~her head portion ha~ already been inserted.
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2 0 ~ 6 Furthermore, according to the alternative embodiment of Figure 4, the hole 13' is preferably circular and has a diameter o~ approximately 0.500", and the slot 15' is generally oblong and has a width o approximately 0.250"
and a length of approximately .500" ext~nding from the centre of focus of the oblong to the centre of the hole 13~o According to the successful prototype, the vertical post 3 ~and vertical post 3') and the horizontal member 5 (and alternative horizontal member 5') ar4 ~abricated from sheet metal having a thickness of approximately O . 036!' .
Other embodiments and variations are possible within the sphere and scope o~ the claims appended hereto.
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This latter prior art technique also suf~ers from the disadvantage that the shelving unit is difficult to assemble. Furthermore, the connection of the rivet and ~lot edge is in the form of 2 single point connection which may become loosened with time as with the prior art Hirsh unit, thereby resulting in potential instability of the shelving unit.
Summary of the Invention According to the present invention, a knock-down shelving unit is provided which is easy to assemble, has few assembly components, and is characterized by an interference fit between the horizontal memberæ and vertical posts resulting in extremely stable construction.
In particular, the knock-down shelving unit of the pr~ent invention comprises a plurality o~ vertical posts each in~luding a frontal vertical ~ace and a side vertical face perpendicular thereto. A plurality of horizontal members are provided each including a frontal face and a vertical edge at each opposite end thereof.
Attachment means are provided for connecting the horizontal members to the v~rtical posts, the attachment means comprising at least one first portion in one of either th~ ~rontal vertical fac~ of the vertical po~ka or the frontal v~rtical face of the horizontal members, and ' ' 2~6~65~
at least one second portion adapted to extend from the other one of the frontal vertical face of the vertical posts or the frontal vertical face o~ the horizontal members, wherein the at least one first portion comprises a generally key hole shaped aperture having a hole and slot extending therefrom at a predetermined acute angle to vertical, and the at least one second portion comprises a neck and a head portion extending from the neck, the head portion being cooperatively shaped ~or insertion throuqh the hole and the neck being cooperatlvely shaped to slide within the 510t, whereby upon inserting the neck portion through the hole the neck slides within the slot at the aforementioned predetermined acute angle until the vertical edge of the horizontal member engages the side vertical ~ace nf the vertical post and further sliding o~ the neck within the slot results in an interference ~it therebetween.
Brie~ DescriPtion of the Drawinqs A detailed descriptiQn o~ the invention is provided below with reference to the ~ollowing drawings, in which:
Figure 1 is a perspective view of the knock-down shelving unit of the present invention;
Fiyure 2 is an enlarged, fragmentary side elevakion Yiew of a vertical post, horizontal member and attachment means therebetween, in accordance with the preferred embodiment;
Figure 3 iæ a cross sectional view through III-III
in Figure 2; , Figure 4 is an enlarged, fragmentary, side elevation view of a horizontal member and vertical post in accordance with an alternative embodiment of the invention; and Figure 5 is a perspective view o~ attachment means for use with the preferred embodiment of Figure 4.
Detailed Desc~i~tion of the Preferred Embodiment Turning to Figure l, an assembled shelving unit 1 is shown comprising ~our vertical posts 3 each having a 6 ~ ~
frontal vertical face 2 and side vertical face 4, and to which a plurality of horizontal memhers ~ are attached.
The horizontal members 5 are each characterized by a frontal vertical face 6 and horizontal ledqes 8 ~shown in 5 detail with reference to Figures ~-5). Shelf units 7 rest on the horizontal members 5O Cross bracing ~embers (not shown) may be provided for additional ~tability.
However, the stable nature of the shelving unit constructed in accordance with the pre#ent invention substantially alleviates t~e requirement for cross bracing.
As shown in greater detail with ref~rence to ~igures 2 and 3, the frontal face 2 of each vertical post 3 is provided with a plurality o~ key hole shaped apertures 11 each comprising a generally circular hole 13 and a slot 15 oriented at an acute angle. This angle is preferably in the range of from 8 to 30, and more preferably is 10 from vertical.
Each horizontal member 5 comprises at least one attachment connector 17 which, according to the pre~erred embodiment, comprisQs a neck 19 and head portion 21.
Preferably, there are two attachment connectors 17.
Preferably, the neck 19 and head portion 21 are in the form of a rivet which may be intalled in the hori~ontal member 5 during fabrication thereof. Alternatively, the neck 19 and head portion m~y be stamped or punched ~rom the sheet metal horizontal member 5 so as to be integral therewith.
In operation, the attachment means 17 are inserted through respective key hole apertures 11 such that the head portion 21 passes through the circular hole 13 and the vertical edge 23 of the horizontal member 5 rests against the inside surface of the vertical side face 4 o~
the vertical post 3. Downward pressure is then applied to the horizontal member 5 such that the neck 19 slides downwardly within slot 15. Since the slot ~5 is disposed at an angle, the clearance between the neck 19 and the ' .
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edge of the slot 15 diminishes such that additional downward pressure results in an interface fit between horizontal member 5 and vertical post 3. The interference fit between horizontal member 5 and vertical post 3 extends over the full length of the slot 15 rather than forming a single point oonnection as in the prior art, thereby resulting in a firm interconnection.
However, the shelving unit assembled in accordance with the preferxed embodiment o~ Figures 2 and 3 may nonetheless be disassembled by applying upward ~orce to the horizontal member 5 for dislodging the horiæontal member from the vertical post 3.
As discussed above, the angle of inclination of the slot 15 may vary within a preferred range of acute angle~
(although a 10 angle of inclination has been determined through experimentation to be optimum). As the angle of inclination increases, the interface fit between the slot 15 and neck 19 becomes tighter but a larger tolerance is required. Conversely, as the angle o~ inclination of slot 15 is made less, the tightness of the interface fit reduces and the tolerance requirements are relaxed.
According to a successful prototype, the head portion 21 is in the form of a circular disk having a diameter of approximately 7/16" and a thickness o~
approximately .005". The neck 19 is in the form of a circular cylinder having a diameter of approximately 0.~40", and the length of the neck 19 from the base to the head portion 21 is approximately 0.08". The hole 13 is preferably circular and has a diameter of approximately 0.0500", and the slot 15 is generally oblong and ha~ a width of approximately 0.250" and a length of approximately 0.500" extending ~rom the centre of focus of the oblong to the center o~ the hole 13.
However, other dimensions of these components are possible.
Turning to the alternative embodiment shown in Figures 4 and 5, the construction of vertical post 3' is : . .
. .
20S~6 substantially the same as shown in Figure 2 with the exception that the slot 15' is o~ generally oblong shape (i.e. with a semi circular end portion)~ ~s an alternative to the rivet attachment means 17 of Figures 2 and 3, in the embodiment of Figures 4 and 5 an attachment means 17' is provided which i5 separable from the vertical post 3' and horixontal ~ember 5'. In particular, the attachment means 17' o~ Figure 5 is ~hown comprising a first head portion 21', a neck 1~' and further head portion 25, resulting in an ov~rall shape generally ~imilar to a yo-yo which is a adapted tv b~
inserted through key hole apertures 11' in the vertical post 3' and through ~urther key hole 27 in the horizontal member 5'. The neck 19' slides within slots 15' and 29 in response to downward pressure on the horizontal member 5'. As with the embodiment of Figures 2 and 3, movement of the neck 19' in the ~lots results in vertical sdge 23' wedging against the vertical face 4' of vertical post 3'.
When installed, the head portion 21' projects ~rom the apertures 11' and 27 adjacent vertical post 3' while the head portion 25 projects from the apertures 11' and 27 adjacent the horizontal member 5', thereby retaining the attachment means 17' within the two sets of apertures 11' and 27.
According to a successful prototyp~ of the alternative embodiment, the head portions 21 and 25 are in the form of circular disks one having a diameter of approximately 7/16" and the other slightly greater than tha diameter of the circular hole 13', and a thickness o~
approximately .005". The neck 19/ is in the form o~ a circular cylinder ha~ing a diameter of approximately .240", and the distance of the neck 19' separating heafl portions 21 and 25 is approximately 0.80". By making one o~ the head portions larger than the hole 13', the enlarged head portion is prevented from passing through the hole 13' a~ter the o~her head portion ha~ already been inserted.
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2 0 ~ 6 Furthermore, according to the alternative embodiment of Figure 4, the hole 13' is preferably circular and has a diameter o~ approximately 0.500", and the slot 15' is generally oblong and has a width o approximately 0.250"
and a length of approximately .500" ext~nding from the centre of focus of the oblong to the centre of the hole 13~o According to the successful prototype, the vertical post 3 ~and vertical post 3') and the horizontal member 5 (and alternative horizontal member 5') ar4 ~abricated from sheet metal having a thickness of approximately O . 036!' .
Other embodiments and variations are possible within the sphere and scope o~ the claims appended hereto.
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Claims (14)
1. A knock-down shelving unit, comprising:
a) a plurality of vertical posts each including a frontal vertical face and a side vertical face perpendicular thereto;
b) a plurality of horizontal members each including a frontal vertical face and vertical edge at each opposite end;
c) attachment means for connecting at least one horizontal member to at least one vertical post, said attachment means comprising at least one first portion in one of either said frontal vertical face of the vertical post or said frontal vertical face of the horizontal member, and at least one second portion adapted to extend Prom the other one of the frontal vertical face of the vertical post or the frontal vertical face of the.
horizontal member, wherein d) said at least one first portion comprises a generally key hole shaped aperture having a hole and a slot extending therefrom at a predetermined acute angle to vertical; and e) said at least one second portion comprises a neck and a head portion extending from said neck, aid head portion being cooperatively shaped for insertion through said hole and said neck being cooperatively shaped to slide within said slot;
whereby upon inserting said head portion through said hole said neck slides within said slot at said predetermined acute angle until the vertical edge of the horizontal member engages the side vertical face of the vertical post and further sliding of the neck within the slot results in an interference fit therebetween.
a) a plurality of vertical posts each including a frontal vertical face and a side vertical face perpendicular thereto;
b) a plurality of horizontal members each including a frontal vertical face and vertical edge at each opposite end;
c) attachment means for connecting at least one horizontal member to at least one vertical post, said attachment means comprising at least one first portion in one of either said frontal vertical face of the vertical post or said frontal vertical face of the horizontal member, and at least one second portion adapted to extend Prom the other one of the frontal vertical face of the vertical post or the frontal vertical face of the.
horizontal member, wherein d) said at least one first portion comprises a generally key hole shaped aperture having a hole and a slot extending therefrom at a predetermined acute angle to vertical; and e) said at least one second portion comprises a neck and a head portion extending from said neck, aid head portion being cooperatively shaped for insertion through said hole and said neck being cooperatively shaped to slide within said slot;
whereby upon inserting said head portion through said hole said neck slides within said slot at said predetermined acute angle until the vertical edge of the horizontal member engages the side vertical face of the vertical post and further sliding of the neck within the slot results in an interference fit therebetween.
2. The knock-down shelving unit of claim 1 wherein said key hole shaped aperture is disposed in at least one of said plurality of vertical posts, said slot extends downwardly from said hole toward said vertical edge at said predetermined angle, and said neck and head portion are connected to and project from at least one of said plurality of horizontal members.
3. The knock-down shelving unit of claim 1 wherein said key hole shaped aperture is disposed in at least one of said plurality of vertical posts, said slot extends downwardly from said hole toward said vertical edge at said predetermined angle, a further key hole shaped aperture is disposed in at least one of said plurality of horizontal members, said at least one second portion is separable from said vertical posts and said horizontal members and includes an additional head portion connected to said neck, and said neck and head portion are adapted to be inserted through said key hole shaped aperture and said further key hole shaped aperture and retained therein by said head portion on one side of said key hole shaped aperture and said further key hole shaped aperture and by said further head portion on an opposite side of said key hole shaped aperture and said further key hole shaped aperture.
4. The knock-down shelving unit of claim 1 wherein said predetermined angle is in the range of from 8° to 30°.
5. The knock-down shelving unit of claim 2 wherein said predetermined angle is in the range of from 8° to 30°.
6. The knock-down shelving unit of claim 2 wherein said attachment means is a rivet.
7. The knock-down shelving unit of claim 4 or 5 wherein said predetermined angle is 10°.
8. A knock-down shelving unit, comprising:
a) a plurality of vertical posts each including a frontal vertical face and a side vertical face perpendicular thereto;
b) a plurality of horizontal members each including a frontal vertical face and vertical edge at each opposite end;
c) attachment means for connecting at least one horizontal member to at least one vertical post, said attachment means comprising at least one generally key hole shaped aperture in said frontal vertical face of said vertical post, said aperture having a hole and a slot extending therefrom at a predetermined acute angle to vertical, and a rivet connected to said horizontal member, said rivet having a neck and a head portion extending from said neck, said head portion being cooperatively shaped for insertion through said hole and said neck being cooperatively shaped to slide within said slot;
whereby upon inserting said head portion through said hole said neck slides within said slot at said predetermined acute angle until the vertical edge of the horizontal member engages the side vertical face of the vertical post and further sliding of the neck within the slot results in an interference fit therebetween.
a) a plurality of vertical posts each including a frontal vertical face and a side vertical face perpendicular thereto;
b) a plurality of horizontal members each including a frontal vertical face and vertical edge at each opposite end;
c) attachment means for connecting at least one horizontal member to at least one vertical post, said attachment means comprising at least one generally key hole shaped aperture in said frontal vertical face of said vertical post, said aperture having a hole and a slot extending therefrom at a predetermined acute angle to vertical, and a rivet connected to said horizontal member, said rivet having a neck and a head portion extending from said neck, said head portion being cooperatively shaped for insertion through said hole and said neck being cooperatively shaped to slide within said slot;
whereby upon inserting said head portion through said hole said neck slides within said slot at said predetermined acute angle until the vertical edge of the horizontal member engages the side vertical face of the vertical post and further sliding of the neck within the slot results in an interference fit therebetween.
9. The knock-down shelving unit of claim 8 further comprising two vertically spaced rivets on said vertical post and two likewise vertically arranged apertures through said horizontal member.
10. A knock-down shelving unit, comprising:
a) a plurality of vertical posts each including a frontal vertical face and a side vertical face perpendicular thereto;
b) a plurality of horizontal members each including a frontal vertical face and vertical edge at
a) a plurality of vertical posts each including a frontal vertical face and a side vertical face perpendicular thereto;
b) a plurality of horizontal members each including a frontal vertical face and vertical edge at
11 each opposite end;
c) attachment means for connecting at least one horizontal member to at least one vertical post, said attachment means comprising at least one generally key hole shaped aperture in said frontal vertical face of said vertical post, said aperture having a hole and a slot extending therefrom at a predetermined acute angle to vertical, a further generally key hole shaped aperture in said frontal vertical face of said horizontal member, and a generally yo-yo shaped element having a neck and a head portion extending from said neck, said head portion being cooperatively shaped for insertion through said hole and said further generally key hole shaped aperture and said neck being cooperatively shaped to slide within said slot;
whereby upon inserting said head portion through said hole and said further generally key hole shaped aperture said neck slides within said slot at said predetermined acute angle until the vertical edge of the horizontal member engages the side vertical face of the vertical post and further sliding of the neck within the slot results in an interference fit therebetween.
11. The knock-down shelving unit of claim 8 wherein said predetermined angle is in the range of from 8° to 30°.
c) attachment means for connecting at least one horizontal member to at least one vertical post, said attachment means comprising at least one generally key hole shaped aperture in said frontal vertical face of said vertical post, said aperture having a hole and a slot extending therefrom at a predetermined acute angle to vertical, a further generally key hole shaped aperture in said frontal vertical face of said horizontal member, and a generally yo-yo shaped element having a neck and a head portion extending from said neck, said head portion being cooperatively shaped for insertion through said hole and said further generally key hole shaped aperture and said neck being cooperatively shaped to slide within said slot;
whereby upon inserting said head portion through said hole and said further generally key hole shaped aperture said neck slides within said slot at said predetermined acute angle until the vertical edge of the horizontal member engages the side vertical face of the vertical post and further sliding of the neck within the slot results in an interference fit therebetween.
11. The knock-down shelving unit of claim 8 wherein said predetermined angle is in the range of from 8° to 30°.
12. The knock-down shelving unit of claim 9 wherein said predetermined angle is in the range of from 8° to 30°.
13. The knock-down shelving unit of claim 10 wherein said predetermined angle is in the range of from 8° to 30°.
14. The knock-down shelving unit of claim 11 or 12 or 13 wherein said predetermined angle is 10°.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2064656 CA2064656A1 (en) | 1992-04-01 | 1992-04-01 | Knock-down shelf unit |
| JP5516918A JPH07508186A (en) | 1992-04-01 | 1993-03-19 | Frame structure for shelving unit |
| DE69303165T DE69303165T2 (en) | 1992-04-01 | 1993-03-19 | FRAME SUPPORT FOR SHELVING UNIT |
| KR1019940703494A KR100271081B1 (en) | 1992-04-01 | 1993-03-19 | Framework for shelving unit |
| AU38821/93A AU675218B2 (en) | 1992-04-01 | 1993-03-19 | Framework for shelving unit |
| PCT/CA1993/000116 WO1993019642A1 (en) | 1992-04-01 | 1993-03-19 | Framework for shelving unit |
| EP93907691A EP0633742B1 (en) | 1992-04-01 | 1993-03-19 | Framework for shelving unit |
| US08/041,508 US5463966A (en) | 1992-04-01 | 1993-04-01 | Framework for shelving unit |
| US08/221,417 US5553549A (en) | 1992-04-01 | 1994-03-31 | Framework for shelving unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2064656 CA2064656A1 (en) | 1992-04-01 | 1992-04-01 | Knock-down shelf unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2064656A1 true CA2064656A1 (en) | 1993-10-02 |
Family
ID=4149551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2064656 Abandoned CA2064656A1 (en) | 1992-04-01 | 1992-04-01 | Knock-down shelf unit |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2064656A1 (en) |
-
1992
- 1992-04-01 CA CA 2064656 patent/CA2064656A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |