U.S. patent application number 13/043359 was filed with the patent office on 2011-06-30 for wall rail system.
This patent application is currently assigned to Element-System Rudolf Bohnacker GmbH. Invention is credited to Wolfram Haarmann.
Application Number | 20110155678 13/043359 |
Document ID | / |
Family ID | 36834280 |
Filed Date | 2011-06-30 |
United States Patent
Application |
20110155678 |
Kind Code |
A1 |
Haarmann; Wolfram |
June 30, 2011 |
WALL RAIL SYSTEM
Abstract
The invention relates to a wall rail system for a shelf system
or similar, comprising at least one wall rail which is embodied as
a U-shaped profile, comprising a rear part which is secured to a
wall, two lateral limbs which are oriented away from the wall, one
rear-sided cavity which extends in the longitudinal direction on
the side of the rear part which is oriented towards the wall, and
at least one connecting element for connecting two wall rails which
push against each other in the longitudinal direction, said
connecting element being received in a connected state of the two
wall rails in the rear-sided cavity. The connecting element
reliably connects, fixes, and aligns the rails in relation to each
other without engaging in the usable space between the lateral
limbs and the rear side of the U-profile.
Inventors: |
Haarmann; Wolfram;
(Pfullingen, DE) |
Assignee: |
Element-System Rudolf Bohnacker
GmbH
Rottenacker
DE
|
Family ID: |
36834280 |
Appl. No.: |
13/043359 |
Filed: |
March 8, 2011 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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12281466 |
Sep 2, 2008 |
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PCT/EP2007/051492 |
Feb 16, 2007 |
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13043359 |
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Current U.S.
Class: |
211/87.01 |
Current CPC
Class: |
A47B 96/1466 20130101;
F16B 12/40 20130101; F16B 7/0413 20130101 |
Class at
Publication: |
211/87.01 |
International
Class: |
A47B 96/14 20060101
A47B096/14 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 3, 2006 |
EP |
06110619.1 |
Sep 13, 2007 |
WO |
2007101773 |
Claims
1. A wall rail system comprising: at least two wall rails, each
wall rail comprising a substantially U-shaped section comprising: a
rear part for securing to a wall surface; two lateral limbs
extending from the rear part of the wall rail in a perpendicular
direction; a rear-side cavity extending between the two lateral
limbs in a longitudinal direction at the rear face of the rear
part; and at least one connecting element for connecting the two
wall rails at mutually abutting ends of the wall rails in the
longitudinal direction, wherein the rear-side cavity is configured
to accommodate the connecting element to connect the two wall
rails; wherein a front side portion of the connecting element is
configured for contact with an inside surface of the rear-side
cavity; wherein a backside portion of the connecting element is
configured for contact with the wall surface; wherein the
connecting element further comprises: first projections for
engaging in first orifices of the wall rails, the first projections
configured for providing longitudinal support to the wall rails in
a mutually abutting position; and second projections for engaging
second orifices of the two mutually abutting wall rails, the second
projections configured for providing transverse support to the wall
rails in a mutually abutting position.
2. The wall rail system of claim 1, wherein the first and second
orifices are in the rear part in at least one lengthways end.
3. The wall rail system of claim 2, wherein the first orifices are
slots disposed transversely to the longitudinal direction of the
wall rails and the first projections of the connecting element are
disposed at the side-ends of the connecting element, wherein the
first projections are configured to engage in the first orifices of
the mutually abutting wall rails for securing the relative
positioning of the wall rails in the longitudinal direction.
4. The wall rail system of claim 2, wherein the second orifices are
cut-outs at the ends of the wall rails and the second projections
of the connecting element are disposed centrally for engaging in
the second orifices of the mutually abutting wall rails.
5. The wall rail system of claim 1, wherein the connecting element
is an elongate, flat metal element.
6. The wall rail system of claim 5, wherein the first projections
are located on either side of the connecting element and extend at
an angle of between 60.degree. and 85 with a base plane of the
connecting element disposed parallel with the rear face portion of
the wall rails.
7. The wall rail system of claim 2, wherein the first and second
projections of the connecting element are connected to one another
via a notch.
8. The wall rail system of claim 1, wherein the rear-side cavity
extending in the longitudinal direction of the rear part is formed
by a forwardly projecting middle portion of the rear part.
9. The wall rail system of claim 5, wherein the first projections
are located on either side of the connecting element and extend at
an angle of between 75.degree. and 85.degree. with a base plane of
the connecting element disposed parallel with the rear face portion
of the wall rails.
10. The wall rail system of claim 1, wherein the connecting element
does not project into a functional space formed between the two
lateral limbs or between the abutting ends of the two wall
rails.
11. A wall rail comprising: a substantially U-shaped section having
a backside portion for contacting a surface of a wall; two lateral
limbs extending perpendicularly from the backside portion and
extending in a longitudinal direction along the length of the wall
rail; a groove extending between the two lateral limbs and
extending along the length of the wall rail in the longitudinal
direction, wherein the groove is open to the backside portion and
wherein an inside surface of the groove is configured to mate with
a connecting element and surfaces adjacent to the groove are
configured to contact the surface of the wall; and first and second
apertures in at least one end of the wall rail for coupling with
first and second projections of the connecting element to connect
two mutually abutting wall rails; wherein the first aperture of the
wall rail is configured to couple with a first projection of the
connecting element for providing longitudinal support to the two
mutually abutting wall rails; and wherein the second aperture of
the wall rail is configured to couple with a second projection of
the connecting element for providing transverse support to the two
mutually abutting wall rails.
12. The wall rail of claim 11, wherein the first aperture is
disposed transversely to the longitudinal direction of the wall
rail and the second aperture is open at the end of the wall
rail.
13. A wall rail connecting element comprising: a flat elongate
sheet of solid material having a front side surface and a backside
surface; first and second projections disposed at the longitudinal
endpoints of the sheet, the projections extending away from the
front side surface of the sheet; a crease disposed in the middle of
the sheet separating the two projections; wherein the first and
second projections are configured to securely engage two mutually
abutting ends of two wall rails to fix the relative position of the
two wall rails in the longitudinal direction, wherein the two wall
rails are configured to be secured to a wall surface; wherein the
crease is configured to secure the two mutually abutting wall rails
in the transverse direction; wherein the front side surface is
configured for contact with a rear-face of the two mutually
abutting ends of the two wall rails; and wherein the backside
surface is configured for contact the wall surface.
14. The wall rail connecting element of claim 13, wherein the
connecting element comprises an elastic material and further
wherein the connecting element is configured to exert an elastic
pulling force on the two wall rails to closely couple the abutting
ends of wall rails.
15. The wall rail connecting element of claim 13, wherein the first
and second projections are located on either end of the sheet and
extend inward at an angle of between 75.degree. and 85.degree. with
respect to a plane parallel to the backside surface of the
connecting element.
16. The wall rail connecting element of claim 13, wherein the first
and second projections are located on either end of the sheet and
extend inward at an angle of between 60.degree. and 85.degree. with
respect to a plane parallel to the backside surface of the
connecting element.
Description
[0001] This application is a continuation of U.S. patent
application Ser. No. 12/281,466 filed Sep. 2, 2008, titled "WALL
RAIL SYSTEM", the disclosure of which is incorporated herein by
reference in its entirety.
FIELD OF THE INVENTION
[0002] The invention relates to a wall rail system for suspending
shelf supports or similar, in order to form a shelf system which
can be used in a flexible and versatile manner.
BACKGROUND OF THE INVENTION
[0003] Such known shelf systems are commonly used and have proved
to be practical in domestic and commercial applications as a means
of providing a large surface area for storing books, goods, files
and similar, for example. Since such shelf systems can be extended
upwards and towards the side in any manner, they offer a high
degree of flexibility.
[0004] In some situations, especially in commercial applications,
shelf heights of three metres, four metres or more are common. For
reasons of transport, storage and handling, however, wall rails of
more than 1.5 to 2 metres are impractical and uncommon. It is
therefore necessary to mount two or more wall rails one above the
other. This results in a need for fixing means which will enable
two wall rails abutting with one another in the longitudinal
direction to be oriented with respect to one another and secured to
one another.
[0005] A common type of vertical wall rails are so-called U-section
rails, whereby a rear part parallel with the wall is secured to the
wall, from which rear part two lateral limbs extend forwards. The
limbs may be provided with bores, orifices or similar for
suspending shelf supports or similar or vertical notches for
guiding moving retaining elements or similar. To avoid restricting
the use of U-section rails, the space formed between the rear part
and lateral limbs should be as unencumbered as possible.
[0006] GB-A-1 503 214 discloses a wall rail in the form of a
U-shaped section with a rear part which can be secured to a wall
and two lateral limbs facing away from the wall and a groove
extending in the longitudinal direction of the wall rail which
forms a wall-side cavity.
[0007] Posts for free-standing shelves are known from U.S. Pat. No.
3,480,155, which are provided with a plug-in connecting element for
connecting two shelf posts abutting with one another in the
longitudinal direction.
[0008] EP-A-095 021 discloses ceiling or wall panel strips with a
C-shaped cross-section, which abut flush with one another at a
connecting point and are connected to one another by means of panel
connectors, which are likewise C-shaped, which panel connectors are
inserted at the side flanks of the C-shaped section.
SUMMARY OF THE INVENTION
[0009] Accordingly, the objective of this invention is to propose a
wall rail system with at least a wall rail and a connecting element
which enables two wall rails with a U-shaped cross-section abutting
with one another in the longitudinal direction to be reliably
secured and the wall rails oriented with respect to one another
without essentially restricting the usable space between the
lateral limbs and the rear part of the U-section.
[0010] In order to achieve this objective, a wall rail system is
proposed by the invention, comprising at least one wall rail in the
form of a U-shaped section with a rear part which can be secured to
a wall and two lateral limbs facing away from the wall and a
rear-side cavity extending in the longitudinal direction at the
face of the rear part directed towards the wall, and a connecting
element for connecting two wall rails abutting with one another in
the longitudinal direction, which connecting element is
accommodated in the rear-side cavity when the wall rails are in a
connected state.
[0011] The connecting element thus secures the two wall rails
abutting with one another at their end faces. However, because it
is accommodated in the cavity formed on the wall-side behind the
rear part of the wall rail, the connecting part does not project
into the usable space formed between the two lateral limbs and the
rear wall of the U-section wall rail. Accordingly, the connecting
element does not obstruct the fixing or vertical movement of
retaining elements or similar. The wall rail may therefore be of an
extremely compact design.
[0012] In one example of a preferred embodiment, the wall rail has
first and second orifices on at least one lengthways end and the
connecting element has first and second projections on either side
for engaging in the orifices provided in the wall rail. Due to the
projections of the connecting element engaging in the respective
orifices of the wall rails, the latter are connected to one another
and secured against one another.
[0013] The first orifice may preferably be provided in the form of
a slot disposed transversely to the longitudinal direction of the
wall rail and the first projections are disposed at the end of the
connecting element for engaging in the transversely disposed slots
of mutually abutting wall rails, thereby causing the relative
position of the wall rails to be fixed in the longitudinal
direction.
[0014] The second orifice may also preferably be provided in the
form of an essentially rectangular cut-out at the end of the wall
rail and the second projections of the connecting element are
disposed centrally in order to engage in these second orifices,
thereby causing the wall rails to be positioned with respect to one
another in the transverse direction.
[0015] Due to the combination of a slot-shaped cut-out for
positioning in the longitudinal direction and a rectangular cut-out
for positioning in the transverse direction, a position can be
reliably fixed in both the longitudinal direction and the
transverse direction and the rails oriented relative to one another
using a connecting element that is compact, as well as easy and
very economical to manufacture.
[0016] The connecting element may preferably be an elongate, flat
metal element with the first and second projections on either side.
This is lightweight, small and inexpensive to produce.
[0017] The side-end first projections of the connecting element may
subtend an angle of between 60.degree. and 85.degree., preferably
between 75.degree. and 85.degree., with the base plane of the
connecting element, which base plane is parallel with the wall and
with the plane of the rear part of the U-section rail. This choice
of angle makes it easier to fit and secure two wall rails to one
another and produces an elastic force which connects the two rails
to one another.
[0018] In one example of a preferred embodiment, the two central
projections of the connecting element are connected to one another
by means of a small notch or "crease", which increases the strength
of the connecting element.
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The invention will be explained below on the basis of an
example of a specific embodiment and with reference to the appended
drawings.
[0020] FIG. 1 illustrates an example of an embodiment of the wall
rail system proposed by the invention viewed in horizontal
section.
[0021] FIG. 2 is a side view illustrating an example of an
embodiment of the connecting element proposed by the invention.
[0022] FIG. 3 is a view from the front illustrating the two wall
rails mutually abutting at their ends, based on one example of an
embodiment of the invention.
[0023] FIG. 4 is a view of the rear face of two wall rails
connected to one another by means of a connecting element.
[0024] FIG. 5 is a view in vertical section showing an example of
an embodiment of the wall rail system proposed by the
invention.
DETAILED DESCRIPTION OF THE INVENTION
[0025] The invention will be explained in detail below with
reference to examples of specific embodiments.
[0026] FIG. 1 is a view in horizontal section illustrating an
example of an embodiment of the wall rail system proposed by the
invention. It comprises a wall rail 10 with a U-shaped
cross-section and a connecting element 20 for connecting two wall
rails abutting with one another at their lengthways ends (FIGS.
3-5), thus enabling two or more wall rails to be mounted one above
the other on a wall, a partition wall, a frame or similar. The wall
rail as a whole is provided in the form of a U-shaped section with
a rear part 12 which can be secured to a wall 50 and two lateral
limbs 14 standing out from the wall. Grooves, projecting
termination elements or rails or similar may be provided at the
front ends of the lateral limbs 14 remote from the wall for
accommodating sliding elements or horizontally displaceable support
elements. The shape and design of the lateral limbs 14 are of no
consequence to this invention.
[0027] The rear part 12 of the wall rail 10, which can be secured
to the wall by means of screws for example, has a portion 12a
projecting forwards (i.e. away from the wall), which forms a cavity
15 at the wall side. The connecting element 20 for connecting two
vertically abutting section rails 10 is accommodated in this cavity
15.
[0028] FIG. 2 illustrates an example of an embodiment of a
connecting element 20 proposed by the invention. It is provided in
the form of a substantially elongate sheet metal part and has two
side-end projections 21 as well as two central projections 22. The
two central projections 22 are connected to one another via a notch
or "crease". However, the central projections could also be of a
different shape. The side-end projections 21 may be disposed
perpendicular to the main plane of the connecting element, which is
parallel with the plane of the wall and with the rear part 12 of
the wall rail 10, or preferably may subtend an angle a of between
60.degree. and 85.degree., preferably between 75.degree. and
85.degree., with this main plane. This angular position makes it
easier to fit the connecting element and the wall rails. The
connecting element 20, which may be made from an elastic material
such as sheet steel, may also exert an elastic pulling force on the
two wall rails to be connected.
[0029] FIG. 3 is a view from the front, i.e. in the direction
looking towards the wall, illustrating an example of an embodiment
of this invention comprising two wall rails 10 mutually abutting at
their ends and FIG. 4 is a view from the rear illustrating two wall
rails 10 connected to one another by a connecting element 20.
[0030] In their rear face portion, the wall rails 10 each have a
forwardly projecting middle portion 12a, which forms a cavity 15 at
its rear face (wall-side). The connecting element 20 for connecting
two wall rails 10 abutting with one another by their ends is
accommodated in this cavity 15, as illustrated in FIGS. 1, 4 and 5.
Orifices 18 may be provided in the middle portion 12a of the wall
rail 10 for securing the wall rail to the wall.
[0031] Orifices 17, 19 are also provided in the forwardly
projecting middle portion 12a, close to the lengthways end of the
wall rail 12. The first orifice 17 is provided in the form of a
slot disposed in the transverse direction, whilst the second
orifice 19 is of a rectangular shape and is disposed at the end of
the middle portion 12a. In order to connect two wall rails to one
another, the side-end projections 21 of the connecting element 20
engage in the transverse slots 17 and thus cause the wall rails to
be secured to one another in the longitudinal direction (see also
FIG. 5). The central projections 22 of the connecting element 20
engage in the two adjacently lying orifices 19 and cause the two
rails to be secured to one another in the transverse direction. The
exactly positioned engagement of the elongate connecting element 20
at a total of four points also causes a parallel orientation of the
two U-shaped wall rails 10 with respect to one another.
[0032] The skilled person will realise that the exact shape of the
connecting element 20 with the projections 21, 22 and the exact
shape and position of the orifices 17, 19 in the wall rail 10 may
vary within the context of this invention.
[0033] The invention therefore offers a wall rail system with a
wall rail and a connecting element which enables the rails to be
reliably connected, secured and oriented without encroaching into
the usable space between the lateral limbs and the rear face of the
U-section. The invention therefore provides a fixing solution which
makes fitting very easy, compact and simple.
* * * * *