Information
-
Patent Grant
-
6213439
-
Patent Number
6,213,439
-
Date Filed
Wednesday, December 8, 199925 years ago
-
Date Issued
Tuesday, April 10, 200123 years ago
-
Inventors
-
-
Examiners
Agents
-
CPC
-
US Classifications
Field of Search
US
- 248 4441
- 248 454
- 248 455
- 248 457
- 248 459
- 248 460
- 248 462
- 248 2053
-
International Classifications
-
Abstract
A combination table easel, slant board and clipboard is provided. A body having a front surface for holding working papers and the like is pivotally connected to first and second support members. The second support member may be connected to the body in at least three different angular relationships to form either a table easel, slat board or clipboard. Velcro fasteners are the preferred type of fastener. The apparatus is easily stored, shipped and handled in its clipboard configuration.
Description
BACKGROUND AND SUMMARY OF THE INVENTION
The present invention relates generally to table easels, slant boards and clipboards. More particularly, the present invention provides a combination table easel, slant board and clipboard. The present invention may be packaged and/or stored as a clipboard and may be readily adjusted to form a table easel or slant board.
The prior art includes a variety of table easels and slant boards. For example, the Herrera U.S. design patent 399,368 dated Oct. 13, 1998 teaches a book holder including a triangular support which includes means for adjusting the angle of the book support itself. Although this patent teaches one form of table easel, the patent does not teach a table easel readily adjustable to form a slant board or a clipboard.
The prior art also includes the Jacobson U.S. Pat. No. 4,105,182 dated Aug. 8, 1978, which teaches a collapsible and portable bookstand. However, this patent does not teach or suggest an adjustable apparatus which can also be used as a slant board and/or clipboard.
The Teague U.S. Pat. No. 4,667,919 dated May 26, 1987 teaches an apparatus for supporting a clipboard at different angles. However, this device is rather complex in that it includes a supporting base having slots at various angles into which the base of the clipboard is inserted.
The present invention contrasts with the above-identified prior art in that it provides a relatively simple and easily manufactured, shipped and stored device which can readily be adjusted to form a table easel, a slant board or clipboard. The present invention uses in its preferred form Velcro connectors which allow the device to be readily adjusted into one of its three configurations and readily detached from that configuration and adjusted to one of its other end uses.
A primary object of the invention is to provide a combination table easel, slant board and clipboard which is readily adjusted from one configuration to another.
A further object of the invention is to provide a combination table easel, slant board and clipboard having a clipboard configuration which facilitates storage, shipping and handling.
Yet another object of the invention is to provide a combination table easel, slant board and clipboard having predetermined discrete angular relationships between the major components of the apparatus, whereby predetermined support angles are provided.
Yet another object of the invention is to provide in an alternate embodiment an infinite number of angular relationships between the components of the device so that the user can provide a support angle of his or her choice.
Other objects and advantages of the invention will become apparent from the following description and drawings wherein:
BRIEF DESCRIPTIONS OF THE DRAWINGS
FIG. 1
is a schematic representation illustrating the three configurations of the present invention and how the invention may be readily adjusted to any of the three configurations, namely, a table easel, a slant board or a clipboard;
FIG. 2
is a perspective view showing the invention in its configuration as a table easel;
FIG. 3
is a perspective representation showing the invention in its configuration as a slant board;
FIG. 4
is a perspective view showing the invention in its configuration as a clipboard;
FIG. 5
is a rear elevational view showing the apparatus extended to illustrate the hinges and Velcro connectors;
FIG. 6
is a rear elevational view of an alternate embodiment of the invention showing continuous Velcro strips mounted on the back surface of the body;
FIG. 7
is a side elevational view of the invention in its configuration as a table easel showing in greater detail the hinge configuration; and
FIG. 8
is a side elevational view partially in section showing an embodiment using living hinges.
DETAILED DESCRIPTION OF THE DRAWINGS
FIG. 1
schematically illustrates how the present invention may be adjusted to form a table easel
10
a
, a slant board
10
b
or a clipboard
10
c
. The invention is readily convertible from any one of these three configurations to either of the remaining two configurations.
FIG. 2
shows table easel
10
a
. Table easel
10
a
includes a body
20
having an upper edge
21
, a lower edge
22
, a front surface
23
and a back surface
24
. The body as illustrated in
FIG. 2
is a rectangular shape, although the invention is not limited to rectangular shapes and other shapes may be utilized without departing from the spirit of this invention. The body may be made of plastic, metal, wood or other material. The preferred form of the invention utilizes plastic for the body as well as for the first and second support members described below.
A first support member
30
is pivotally connected to the lower edge
22
of body
20
by a pair of plastic hinges
41
and
42
. Hinges
41
and
42
allow the first support member
30
to assume a first position shown best in
FIG. 4
where first support member
30
lies adjacent the back surface
24
of body
20
and a second position shown best in
FIG. 2
where it forms an angle X with the body
20
. In the embodiment shown in
FIG. 2
, when the apparatus is configured to form a table easel
10
a
, the body
20
is positioned relative to first support member at an angle X of approximately 60°. A clip
95
of conventional design is provided to support paper materials and the like against the front surface
23
.
A second support member
50
is pivotally connected to first support member
30
by hinges
51
and
52
. Hinges
51
and
52
allow second support member
50
to lie parallel, and in the same plane, with first support member
30
as shown best in FIG.
4
. Hinges
51
and
52
allow second member
50
to pivot relative to first member
30
and to form a triangular support for the body
20
when connected to the body as described below.
FIG. 3
shows the invention after it has been adjusted to form a slant board lob. In this configuration, the “upper” and “lower” edges are reversed so that the “upper” edge
21
rests on a working surface and the “lower” edge
22
is supported in an elevated position by first support member
30
and second support member
50
forming a triangular support for body
20
. The clip
95
has simply been removed from “upper” edge
21
and attached to “lower” edge
22
to support papers and other working materials on the front surface
23
of the slant board. In this configuration, first support member
30
is positioned at an angle X of approximately 45° relative to body
20
. Second support member
50
is preferably mounted perpendicularly to first member
30
and supports the slant board
10
b
at an angle “a” relative to a working surface of approximately 30°.
FIG. 4
shows the invention in its configuration as a clipboard
10
c
. In this configuration, clip
95
is attached to the upper edge
21
of body
20
. First and second support members
30
and
50
lie adjacent back surface
24
. In this configuration, the invention may be easily stored or transported. To maximize the efficiency for storage or shipping, clip
95
is removed and packaged without being connected to body
20
.
FIG. 4
shows first and second support members
30
and
50
in their first position.
First and second support members
30
and
50
may be readily adjusted to the position shown in either
FIG. 2
or
FIG. 3
to form either a table easel
10
a
or a slant board
10
b.
FIG. 5
shows the back surface
24
of body
20
and shows the placement of a plurality of circular Velcro pieces
71
-
78
. Velcro pieces
71
-
78
are placed on back surface
24
by adhesive to form four pairs
71
-
72
,
73
-
74
,
75
-
76
and
77
-
78
.
FIG. 5
also shows first and second support members
30
and
50
rotated into an extended position where they are coplanar with body
20
. In this view, the relationship of hinges
41
-
42
and
51
-
52
and support members
30
and
50
are shown clearly. Second support member
50
carries two Velcro pieces
81
and
82
along its lower edge
53
. The Velcro pieces
81
and
82
are designed to connect with any one of the pairs
71
-
72
,
73
-
74
,
75
-
76
or
77
-
78
of Velcro pieces carried by the back surface
24
of body
20
. To adjust the invention to the clipboard configuration
10
c
, the user simply rotates first and second support members
30
and
50
upwardly from the position shown in
FIG. 5
to a position where Velcro pieces
81
and
82
connect with pieces
77
and
78
. To form a table easel
10
a
, the user simply rotates first and second support members
30
and
50
from the position shown in
FIG. 5
to a position wherein Velcro pieces
81
and
82
are in contact with either the pair
71
-
72
of Velcro pieces or the pair
73
-
74
. To adjust the invention to form the slant board
10
b
, the user simply disconnects the Velcro pieces
81
and
82
from the pair
73
-
74
for example and connects them to pair
75
-
76
. As used in the claims herein, the pairs of Velcro pieces
71
-
72
and
73
-
74
cooperating with Velcro pieces
81
-
82
form a first detachable connection means and, when so connected, the apparatus forms a table easel. As used in the claims, the Velcro pieces
75
-
76
carried on back surface
24
working together with Velcro pieces
81
-
82
, carried at the lower edge
53
of second support member
50
, cooperate to form a second detachable connection means forming a slant board. Similarly, as used in the claims, Velcro pieces
77
-
78
carried on the back surface
24
of body
20
cooperate with Velcro pieces
81
-
82
to form a third detachable connection means which securely holds first and second support members
30
and
50
adjacent back surface
24
in the clipboard configuration
10
c.
FIG. 6
shows a second embodiment of the invention wherein two continuous Velcro strips
171
and
172
are provided which cooperate with Velcro pieces
181
and
182
carried by the lower edge
153
of second support member
150
to form first, second and third connection means in a fashion similar to the embodiment illustrated in FIG.
5
. However, it is clear that, in the embodiment shown in
FIG. 6
, an infinite variation of angular relationships may be selected by the user between said body and first and second support elements
130
and
150
.
FIG. 7
is a side view of the table easel configuration of the invention showing hinges
41
and
51
.
FIG. 8
shows another embodiment of the invention wherein, instead of using separate hinges, “living hinges”
241
and
251
are provided by using appropriate material known in the art such as polypropylene.
It is understood that variations in the design may be made without departing from the spirit of the invention. For example, various configurations of Velcro connection pieces or strips can be utilized. Various types of hinges may be provided to interconnect the body with first and second support elements
30
and
50
and a variety of angles may be provided between the support elements and the body.
Claims
- 1. An apparatus adjustable to function as either a table easel, a slant board or a clipboard, comprising:a body, said body having an upper edge, a lower edge, a front surface and a back surface, a first support member, said first support member being pivotally connected to said lower edge of said body, and wherein said first support member pivots between a first position in which it lies adjacent said back surface of said body and a second position wherein it forms an angle X with said body, a second support member pivotally connected to said first support member, said second support member having a first position wherein it lies adjacent said back surface of said body, and first and second detachable connection means for connecting said second support member to said body, one element of said first and second detachable connection means being carried by said back surface of said body and a second element of said detachable connection means being carried by said second support member, whereby said apparatus forms a table easel when said second support member is connected to said first detachable connection means, said apparatus forms a slant board when second support member is connected to said second detachable connection means and said apparatus forms a clipboard when said first and second support members lie adjacent said back surface of said body.
- 2. The apparatus of claim 1 wherein said first and second detachable connection means comprises pieces of Velcro.
- 3. The apparatus of claim 1 further comprising third detachable connection means for holding said apparatus in the form of a clipboard with said first and second support elements lying adjacent said back surface of said body, one element of said third detachable connection means being carried by said back surface of said body.
- 4. The apparatus of claim 3 wherein said first, second and third detachable connection means comprise Velcro patches positioned on said back surface of said body at predetermined and discrete locations to achieve desired angular relationships between said body and said first and second support elements.
- 5. The apparatus of claim 3 wherein said first, second and third connection means comprise at least one continuous Velcro strip positioned on said back surface of said body to allow an infinite variation of angular relationships between said body and said first and second support elements.
US Referenced Citations (3)