USOO57946.40A
`Patent Number:
`11
`45) Date of Patent:
`
`5,794,640
`Aug. 18, 1998
`
`618758 8/1980 Switzerland ........................... 403/230
`
`Primary Examiner-Robert Canfield
`Attorney, Agent, or Firm-Griffin. Butler. Whisenhunt &
`Szipl, LLP
`57
`
`ABSTRACT
`
`United States Patent (19)
`Jang
`
`(54) QUICK ASSEMBLY TENT FRAMEWORK
`76) Inventor: Jung-Woo Jang. 53-26 Gamsam-dong,
`Dalseo-ku, Daegu, Rep. of Korea
`
`(21) Appl. No.: 799,806
`22 Filed:
`Feb. 13, 1997
`(5) Int. Cl. ..................................... E04H 15/50
`52 U.S. Cl. .......................... 135,131. 135.14s. 135/147.
`135/151; 403/174: 403/178; 52/641; 52/646:
`52?655.1
`58) Field of Search .............................. 52/646, 641, 109,
`52/6.55.1; 135/45, 147, 151, 128-131:
`403/217-219,326, 329, 174, 178, 102,
`113, 17, 231
`
`56)
`
`References Cited
`
`-
`- -
`A quick assembly tent framework is disclosed. In the
`framework, each of mounts has a channel type socket. The
`socket is eccentrically formed on each mount with thick and
`thin sidewalls being formed on opposite sides of the socket.
`Each of the thick and thin sidewalls has a hinge bore and a
`hinge guide depression. Two connection members are
`attached to both ends of each scissor bar. Each of the
`connection members is axially slitted to a depth thus form
`ing a channel type slit with resilient sidewalls being formed
`on opposite sides of the slit. Each of the resilient sidewalls
`U.S. PATENT DOCUMENTS
`pp
`595,134 12/1897 Bastide ................................ 403/102 x has a boss on its outside surface. The boss is guided by the
`3,984.884 10/1976 Spitz ...
`... 403/230 X guide depression and elastically snapped into the hinge bore
`: 2. gh
`13
`!
`when each scissor bar is jointed to an associated mount. The
`5,421,356 6/1995 Lynch..................................
`framework is easily and quickly assembled or disassembled
`without using any tools thus being convenient to users.
`FOREIGN PATENT DOCUMENTS
`2709197 9/1977 Germany ............................... 403/230
`
`- r -
`
`Sal ...
`
`o
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`
`
`2 Claims, 10 Drawing Sheets
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`US. Patent
`U.S. Patent
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`Aug. 18, 1998
`Aug. 18, 1998
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`Sheet 1 of 10
`Sheet 1 of 10
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`U.S. Patent
`US. Patent
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`Aug. 18,1998
`Aug. 18, 1998
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`Sheet 2 0f 10
`Sheet 2 of 10
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`FIE—1.2
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`U.S. Patent
`US. Patent
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`Aug. 18, 1998
`Aug. 18, 1998
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`Sheet 3 of 10
`Sheet 3 of 10
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`8*5] I - H
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`F133
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`O .0 fix .
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`o K ._
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`o
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`'—' O
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`\L___ ___/'
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`N 0
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`O
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`(v
`N A a \
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`x
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`US. Patent
`U.S. Patent
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`Aug. 13, 1998
`Aug. 18, 1998
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`Sheet 4 of 10
`Sheet 4 of 10
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`US. Patent
`U.S. Patent
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`Aug. 18, 1998
`Aug. 18, 1998
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`Sheet 5 0f 10
`Sheet S of 10
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`US. Patent
`U.S. Patent
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`Aug. 18, 1998
`Aug. 18, 1998
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`Sheet 6 of 10
`Sheet 6 of 10
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`FIGS
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`US. Patent
`U.S. Patent
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`Aug. 18, 1993
`Aug. 18, 1998
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`Sheet 7 of 10
`Sheet 7 of 10
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`5,794,640
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`- I C7
`FIG?
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`US. Patent
`U.S. Patent
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`Aug. 18, 1998
`Aug. 18, 1998
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`Sheet 8 of 10
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`U.S. Patent
`US. Patent
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`Aug. 18, 1998
`Aug. 18, 1998
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`Sheet 9 of 10
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`U.S. Patent
`US. Patent
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`Aug. 18, 1998
`Aug. 18, 1998
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`Sheet 10 of 10
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`FIGIO
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`1.
`QUICK ASSEMBLY TENT FRAMEWORK
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`5,794,640
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`apart from one another towards the expanded state. In the
`framework structure. a plurality of edge scissor assemblies
`form truss members for the expandable framework. A plu
`rality of stationary and slidable mounts are disposed on the
`upright support members to fasten the edge scissor assem
`blies to the support members. To this end, each of the mounts
`have sockets formed therein by spaced-apart facing sidewall
`portions so that the outer ends of the edge scissor assemblies
`may be held in respective sockets in close fitted engagement
`between the facing sidewall portions thereof. The mounts
`are relatively movable with respect to one another so that the
`edge scissor assemblies are operative to open or close
`whereby the framework structure may move between the
`expanded and contracted states.
`However, the framework structure disclosed in U.S. Pat.
`No. 001 is problematic in that it uses a plurality of fastening
`pins for pivotally securing the outer end portions of the edge
`scissor assemblies in the sockets of the mounts. The struc
`ture thus always requires a tool such as a screw driver when
`it is assembled or disassembled. The above structure is thus
`inconvenient to users.
`
`10
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`15
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`25
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`BACKGROUND OF THE INVENTION
`1. Field of the Invention
`The present invention relates, in general. to a collapsible
`framework for tents or canopies and, more particularly, to a
`structural improvement in such a framework to easily and
`quickly assemble and disassemble the framework.
`2. Description of the Prior Art
`As well known to those skilled in the art, a tent or canopy
`is used for shelter from sunshine or rain or for providing a
`private space, and thereby is widely used for various appli
`cations.
`In respect to the above use, tents and canopies require a
`structure suitable for being easily and quickly pitched or
`collapsed. The above objects are mainly achieved by
`improving the structure of a tent or canopy framework.
`Typical tent frameworks are referred to, for example, U.S.
`Pat. No. 4,641,676 (issued Feb. 10, 1987). U.S. Pat. No.
`4,779,635 (issued Oct. 25, 1988), U.S. Pat. No. 4947.884
`(issued Aug. 14, 1990) and U.S. Pat. No. 5.244,001 (issued
`Sep. 14, 1993).
`The portable canopy structure disclosed in U.S. Pat. No.
`'676 has a framework that may be collapsed into a stored
`state yet which may be expanded and erected for use. The
`framework includes a plurality of upright support members,
`the adjacent ones of which are connected by means of
`scissor assemblies comprising either single or dual scissor
`units connected in end-to-end relation. A flexible covering
`extends over the framework. In several of the embodiments,
`a central support is provided for the covering in the form of
`a central post so that the covering is supported in a dome
`35
`like manner. In another embodiment, no central post struc
`ture is shown.
`However, a problem experienced by the structures shown
`in U.S. Pat. No. 676 is that the edge scissor assemblies
`which extend between adjacent support members are often
`subjected to lateral forces which tend to decrease their
`stability. Where the scissor assemblies are connected to each
`other and to the corner supports, compression mounts were
`used which, if tightened, inhibited the scissoring action and
`were subjected to shear forces upon lateral deflection. It was
`often found that the connecting bolts could be bent or broken
`by excessive lateral deflections.
`Meanwhile, the canopy structure disclosed in U.S. Pat.
`No. 635 outwardly biases its corner support members so
`that the framework interconnecting adjacent corner support
`members is placed in tension as opposed to compression,
`which is the case in U.S. Pat. No. 676. Nonetheless, the
`structure shown in U.S. Pat. No. 635 is still subject to
`improvement in the scissor bar interconnections. Likewise,
`the structure shown in U.S. Pat. No. 884 while providing a
`very useful canopy of an auto-erect feature relied on similar
`scissor bar interconnecting bolts which, while quite
`workable. had the disadvantages indicated above.
`The expandable framework structure disclosed in U.S.
`Pat. No. 001 is adapted to be folded and stored in a
`collapsed state and erected in an expanded state on a support
`surface in order to support a canopy above the support
`surface. The expandable framework includes a plurality of
`upright support members each having a bottom end posi
`tionable on the support surface and a top end opposite the
`bottom end. In the collapsed state, the support members are
`oriented alongside one another but are movable outwardly
`
`SUMMARY OF THE INVENTION
`It is, therefore, an object of the present invention to
`provide a quickassembly tent frameworkin which the above
`problems can be overcome and which is easily and quickly
`assembled prior to being erected into an expanded state on
`a support surface and disassembled prior to being folded into
`a collapsed state so that it is convenient to users.
`In order to accomplish the above object, the preferred
`embodiment of this invention provides a quickassembly tent
`framework comprising a plurality of upright support
`members, a plurality of first and second scissor bars forming
`separable edge scissor assemblies through a plurality of
`upper and lower joint mounts and detachably connecting the
`upright support members together through a plurality of first
`stationary and slidable mounts, a center post supporting the
`top center of a flexible covering of a tent and having second
`stationary and slidable mounts, a plurality of third and fourth
`scissor bars forming roof scissor assemblies and connecting
`the second stationary and slidable mounts to the upper and
`lower joint mounts thus holding the center post, wherein
`each of the mounts is provided with a channel type socket
`for holding one end of an associated scissor bar, the socket
`being eccentrically formed on each mount with thick and
`thin sidewalls being formed on opposite sides of the socket,
`the thin sidewall being resilient thus elastically opening the
`socket when the scissor bar is hinged to the mount, each of
`the thick and thin sidewalls having a hinge bore and a hinge
`guide depression, the guide depression extending from an
`edge of each sidewall to the edge of the hinge bore; and two
`connection members are attached to both ends of each
`scissor bar in order to hinge each scissor bar to sockets of
`associated mounts, each of the connection members being
`axially slit to a depth thus forming a channel type slit with
`resilient sidewalls being formed on opposite sides of the slit.
`each of the resilient sidewalls having a boss on its outside
`surface, the boss being guided by the guide depression and
`elastically snapped into the hinge bore when each scissor bar
`is jointed to an associated mount.
`BRIEF DESCRIPTION OF THE DRAWINGS
`The above and other objects, features and other advan
`tages of the present invention will be more clearly under
`stood from the following detailed description taken in con
`junction with the accompanying drawings, in which:
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`FIG. 1 is a perspective view showing the configuration of
`a tent framework in a fully-expanded State after being
`assembled according to the preferred embodiment of this
`invention;
`FIG. 2 is a perspective view showing the configuration of
`the framework of this invention in an initial stage of being
`folded into a collapsed state;
`FIG. 3 is an exploded perspective view showing a first
`stationary mount attached to the top end of an upright
`support member according to this invention and two scissor
`bars hinged thereto;
`FIG. 4 is an exploded perspective view showing a first
`slidable mount movably fitted over an upright support
`member according to this invention and two scissor bars
`hinged thereto;
`FIG. 5 is an exploded perspective view showing a joint
`mount of an edge scissor assembly according to this inven
`tion and three scissor bars hinged thereto;
`FIG. 6 is an exploded perspective view showing the
`second stationary mount attached to the bottom end of the
`center post according to this invention and four scissor bars
`hinged thereto;
`FIG. 7 is an exploded perspective view showing the
`second slidable mount movably fitted over the center post
`and four scissor bars hinged thereto;
`FIG. 8 is an exploded perspective view showing the
`second slidable mount and a plurality of connection mem
`bers attached to the respective scissor bars for hinging the
`scissor bars to the sockets of the mount according to this
`invention;
`FIG. 9 is an exploded perspective view showing the a
`hinged joint of an edge scissor assembly according to this
`invention; and
`FIG. 10 is a perspective view showing the fully-collapsed
`framework of this invention having a flexible covering
`thereon.
`
`35
`
`DESCRIPTION OF THE PREFERRED
`EMBODIMENTS
`FIGS. 1 and 2 show the construction and configuration of
`the quick assembly tent framework in accordance with the
`preferred embodiment of the invention. As shown in FIGS.
`1 and 2, the framework of this invention comprises a
`plurality of preferably, four. upright support members 1a.
`1b, 1c and 1d which form the corner support members of the
`framework. Each of the above members 1a to 1d has a
`telescopic structure thus being height-adjustable and having
`a holder 16 on its bottom end. The above holder 16 holds the
`support member on a support surface when the framework.
`is erected into an expanded state.
`Attached to the top end of each of the support members
`1a to 1d is a first stationary mount 10. A first slidable mount
`15 is movably fitted over each of the support members 1a to
`1d so that the mount 15 may move along the support
`member between a position proximate the stationary mount
`10 and a position remote from the mount 10 when the
`framework is erected into an expanded state or folded into
`a collapsed state, respectively. The uppermost and lower
`most positions of the slidable mount 15 relative to the
`support member are limited by the stationary mount 10 and
`the holder 16, respectively. The first slidable mounts 15 of
`the four support members 1a to 1d are connected together
`through a plurality of first scissor bars 2a, while the station
`ary mounts 10 are connected together through a plurality of
`second scissor bars 2b. The first and second scissor bars 2a
`
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`and 2b form edge scissor assemblies which also assemble
`the four support members 1a to 1d into a single structure.
`That is a first scissor bar 2a is hinged to a first slidable
`mount 15, while a second scissor bar 2b is hinged to a first
`stationary mount 10. The two scissor bars 2a hinged to two
`adjacent upright support members are in turn joined together
`by an upper joint mount 20, while the two scissor bars 2b
`hinged to adjacent upright support members are jointed
`together by a lower joint mount 25. Each first bar 2a is also
`hinged to an associated second bar 2b at a hinged joint 50,
`thus forming an edge scissor assembly. Due to the edge
`scissor assemblies formed by the bars 2a and 2b, the four
`support members 1a to 1d are assembled into a single
`Structure.
`The framework also includes a center post 3, which
`supports the top center of a flexible covering (see FIG. 10)
`when the framework is fully erected in an expanded state on
`a support surface. A second stationary mount 30 is attached
`to the bottom end of the center post 3 and is commonly
`connected to the four upper joint mounts 20 through a
`plurality of third scissor bars 2c. Meanwhile, a second
`slidable mount 35 is movably fitted over the center post 3 at
`a position above the second stationary mount 30 and is
`commonly connected to the four lower joint mounts 25
`through a plurality of fourth scissor bars 2d thus holding the
`center post 3.
`Each of the third scissor bars 2c is also hinged to an
`associated fourth scissor bar 2d at a hinged joint 50 thus
`forming a roof scissor assembly.
`When the framework is folded from the fully-expanded
`state into the collapsed state, the four upright support
`members 1a to 1d come together while lowering the center
`post 3 as shown in FIG. 2, so that the framework can be fully
`folded with a minimized volume. Meanwhile, when the
`framework is erected from the collapsed state into the
`expanded state, the four support members 1a to 1d are
`moved to the positions remote from each other while raising
`the center post 3 thus bringing the framework into the
`expanded state as shown in FIG. 1.
`While designing the framework of this invention, it is a
`most important factor to appropriately design the intercon
`necting structure between the mounts 10, 15.20, 25.30 and
`35, the four support members 1a to 1d, the scissor bars 2a
`to 2d and the center post 3. The interconnecting structure
`will be described in detail hereinbelow.
`As shown in FIGS. 3 to 7. each of the mounts 10, 15, 20.
`25, 30 and 35 has at least two lobes, each of which is
`provided with a channel type socket 100 for holding one end
`of an associated scissor bar 2a, 2b, 2c, or 2d. The above
`socket 100 is eccentrically formed on each lobe of the
`mount, with thick and thin sidewalls being formed on
`opposite sides of the socket 100. In each lobe of a mount, the
`thin sidewall 101 is resilient so that the socket 100 may be
`elastically opened when an associated scissor bar is inserted
`into and assembled with the socket 100. The thick and thin
`sidewalls of each mount are provided with respective bores
`101b. The inside surface of each sidewall is partially
`depressed, thus forming a guide depression 101a which
`extends from an edge of the sidewall to the edge of an
`associated bore 101lb and guides a boss of a scissor bar into
`the bore 101b when the bar is hinged to the mount.
`As shown in FIG. 8, a connection member 200 is attached
`to the end of each scissor bar and hinges the scissor bar to
`the socket of the mount. The exposed end of the connection
`member 202 is axially slitted to a depth thus forming a
`channel-type slit 201, with resilient sidewalls 202 being
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`formed on opposite sides of the slit 201 and being jointed by
`means of a web. The outside surface of each resilient
`sidewall 202 is provided with a boss 203, which is to be
`guided by the guide depression 101a and elastically snapped
`into the bore 101b of the mount when the scissor bar is
`jointed to the mount.
`One hinged joint 50, which hinges the first and second
`scissor bars 2a and 2b together into an edge scissor assembly
`or hinges the third and fourth scissor bars 2c and 2d together
`into a roof scissor assembly, is shown in FIG. 9. As shown
`in the drawing, each hinged joint 50 comprises two back
`to-back channel members 51 and 52 and two tightening
`covers SS. The first channel member 51, which is attached
`to the inside wall of one scissor bar of a scissor assembly,
`has a hinge pin 51a. Meanwhile, the second channel member
`52, which is attached to the inside wall of the other scissor
`bar of the scissor assembly, has a hinge hole 52a which
`engages with the hinge pin 51a. The two tightening covers
`55 are attached to the outside walls of the two scissor bars
`and integrate the channel members 51, 52 and the scissor
`bars into the scissor assembly.
`In order to assemble the above-described elements into
`the framework, the first slidable mounts 15 are movably
`fitted over the respective support members 1a to 1d prior to
`attaching the first stationary mounts 10 to the top ends of the
`support members. In this case, the sockets of the first
`stationary mounts 10 have to be oriented in the direction
`corresponding to the sockets of the first slidable mounts 15.
`Thereafter, two channel members 51 and 52 are attached
`to the inside walls of the first and second scissor bars 2a and
`2b at the central portions of the bars. The channel members
`51 and 52 in turn engage with the tightening covers 55 so
`that the bars 2a and 2b are tightly covered with channel
`members and tightening covers. Thereafter, the hinge pin
`51a of the first channel member 51 is coupled to the hinge
`hole 52a of the second channel member 52, thus assembling
`the scissor bars 2a and 2b into an edge scissor assembly.
`Two connection members 200 are attached to each end of
`each scissor bar 2a, 2b, respectively. As described above.
`each of the connection members 200 has the channel type
`slit 201, resilient sidewalls 202 formed on opposite sides of
`the slit 201 and the boss 203 provided on the outside surface
`of each resilient sidewall 202.
`After forming the edge scissor assemblies using the first
`and second bars 2a and 2b, the bars 2a and 2b are hinged to
`the mounts 15 and 10 respectively. In this case, the connec
`tion member 200 of each first bar 2a is fitted into the socket
`100 of each first slidable mount 15 and is forcibly pushed
`into the socket 100, with the bosses 203 of the connection
`member 200 being guided by the guide depressions 101a of
`the mount 15. The bosses 203 of the connection member 200
`are thus snapped into the bores 101lb of the mount 15 and
`thereby hinge the first bar 2a to the mount 15. In the same
`manner, the second bars 2b are hinged to the first stationary
`mounts 10.
`After hinging the first and second bars 2a and 2b to the
`mounts 15 and 10 of the upright support members 1a to 1d,
`the other end of each second bar 2b is hinged to the lower
`joint mount 25, while the other end of each first bar 2a is
`hinged to the upper joint mount 20.
`The third and fourth scissor bars 2c and 2d are hinged
`together prior to attaching the connection members 200 to
`the bars 2c and 2d in the same manner as described for the
`bars 2a and 2b, thus forming the roof scissor assemblies.
`Thereafter, the second stationary mount 30 of the center post
`3 is commonly connected to the upper joint mounts 20
`through the third scissor bars 2c of the roof scissor assem
`
`50
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`blies. Similarly, the second slidable mount 35 of the center
`post 3 is commonly connected to the lower joint mounts 25
`through the fourth scissor bars 2d of the roof scissor assem
`blies so that the framework of this invention is completely
`assembled. In this case, the third and fourth bars 2c and 2d
`are hinged to the mounts 20, 25.30, 35 in the same manner
`as described for the first and second bars 2a and 2b. While
`assembling the elements into the framework, the scissor bars
`2a to 2d are easily and quickly hinged to associated mounts
`10, 15, 20, 25.30 and 35 due to the resilient structure of the
`sidewalls 101 and 202. After assembling the framework, the
`framework is erected into a fully-expanded state on a
`support surface prior to covering the framework with a
`flexible covering.
`In order to disassemble the framework into a stored State,
`the flexible covering is removed from the expanded frame
`work prior to removing the bars 2a to 2d of the scissor
`assemblies from associated mounts 10, 15, 20, 25.30 and
`35. In this case, the bars 2a to 2d are easily and quickly
`removed from associated mounts due to the resilient struc
`ture of the sidewalls 101 and 202. After removing the scissor
`assemblies from the mounts, the scissor assemblies are
`disassembled into the separated bars 2a to 2d by disassem
`bling the hinged joints 50.
`As described above, the present invention provides a
`quick assembly tent framework. The framework is easily
`and quickly assembled or disassembled without using any
`tools thus being convenient to users.
`Although the preferred embodiments of the present inven
`tion have been disclosed for illustrative purposes, those
`skilled in the art will appreciate that various modifications,
`additions and substitutions are possible, without departing
`from the scope and spirit of the invention as disclosed in the
`accompanying claims.
`What is claimed is:
`1. A quick assembly tent framework comprising, a plu
`rality of upright support members, a plurality of first and
`second scissor bars forming separable edge scissor assem
`blies through a plurality of upper and lower joint mounts and
`detachably connecting the upright support members together
`through a plurality of first stationary and slidable mounts, a
`center post supporting the top center of a flexible covering
`of a tent and having second stationary and slidable mounts,
`a plurality of third and fourth scissor bars forming roof
`scissor assemblies and connecting the second stationary and
`slidable mounts to the upper and lower joint mounts thus
`holding the center post, wherein
`each of said mounts is provided with a channel type
`socket for holding one end of an associated scissor bar,
`said socket being eccentrically formed on each mount
`with thick and thin sidewalls being formed on opposite
`sides of the socket, said thin sidewall being resilient
`thus elastically opening the socket when the scissor bar
`is hinged to the mount, each of said thick and thin
`sidewalls having a hinge bore and a hinge guide
`depression, said guide depression extending from an
`edge of each sidewall to the edge of the hinge bore; and
`two connection members are attached to both ends of each
`scissor bar in order to hinge each scissor bar to sockets
`of associated mounts, each of said connection members
`being axially slit to a depth thus forming a channel slit
`with resilient sidewalls being formed on opposite sides
`of said slit, each of said resilient sidewalls having a
`boss on its outside surface, said boss being guided by
`the guide depression and elastically snapped into the
`hinge bore when each scissor bar is jointed to an
`associated mount.
`
`Patent Owner CCI
`Ex. 2019 - Page 14
`
`

`

`5,794,640
`
`7
`2. The quick assembly tent framework according to claim
`1, wherein each of said edge and roof scissor assemblies is
`formed by hinging two scissor bars together at central
`portions of the bars using a hinged joint, said hinged joint
`comprising:
`two back-to-back channel members, one of said channel
`members being attached to the inside wall of one
`scissor bar of each scissor assembly and having a hinge
`pin and the other being attached to the inside wall of the
`
`8
`other scissor bar and having a hinge hole. Said hinge
`hole engaging with said hinge pin; and
`two tightening covers attached to the outside walls of the
`two scissor bars of each scissor assembly and integrat
`ing the two channel members and the two scissor bars
`into each scissor assembly.
`
`Patent Owner CCI
`Ex. 2019 - Page 15
`
`