Extendable backdrop erecting device

An extendable backdrop erecting device, comprising: a fixed wall disposed at one end of a space and having a fixed backdrop surface that faces away from the one end of the space, two lateral ends of the fixed wall being each provided with a first pivot; a movable wall disposed beside the fixed wall and having a first movable backdrop surface corresponding to the fixed backdrop surface, two lateral ends of the movable wall being each provided with a second pivot; and two extendable and foldable walls pivoted between the first pivots and the second pivots respectively and each having a respective foldable backdrop surface, wherein the movable wall can move to the other end of the space as the foldable walls extend so that the fixed backdrop surface, the first movable backdrop surface and the foldable backdrop surfaces are located around the space to increase the convenience in use.

BACKGROUND OF THE INVENTION

1. Technical Field

The present invention provides an extendable backdrop erecting device, and particularly relates to a device capable of extendably erecting a backdrop on inner walls of an indoor space or in an outdoor space and, more particularly, to a fixed wall, a movable wall and foldable walls of the backdrop as well as pivots and backdrop surfaces of the fixed wall, the movable wall and the foldable walls.

2. Description of Related Art

Suitable indoor and outdoor backdrops can not only beautify the living environment, but can also relax people and create a comfortable atmosphere. Therefore, the indoor and outdoor backdrops are indispensible to indoor and outdoor activity spaces such as general homes, schools and offices.

As is known, an indoor backdrop comprises arrangement of inner walls of an indoor space such as surrounding wall surfaces and a ceiling, and an outdoor backdrop comprises arrangement of outer walls of a building such as outdoor wall surfaces and a ceiling of an eave. The backdrops are usually formed by coating the wall surfaces and the ceilings with a paint of a particular color, pattern or design, or by affixing wallpaper of a particular color, pattern or design to the wall surfaces and the ceilings, or by disposing wood tiles on the wall surfaces and the ceilings.

However, the conventional backdrop arranged on the wall surfaces of the indoor or outdoor space cannot be replaced and changed at will. Now, there is a practice of arbitrarily changing a backdrop, which is achieved by deploying a guide rail on the ground of the indoor or outdoor space and slidably disposing a plurality of partitions on the guide rail so that the single space is divided by the partitions into a plurality of independent spaces.

However, the shortcoming of this practice is that, the partitions are mainly used to divide the space and can only cause extension and retraction of a part of the space in terms of variations of the backdrop. Therefore, a need exists in the art to solve the aforesaid problem.

BRIEF SUMMARY OF THE INVENTION

An objective of the present invention is to provide a backdrop device extendably erected on inner walls of an indoor space so as to overcome the problems with the prior art that the conventional indoor backdrop arranged on inner walls of an indoor space cannot be replaced and changed at will and that using the partitions can only cause extension and retraction of a part of the indoor space in terms of variations.

To achieve the aforesaid objective, the present invention provides an extendable backdrop erecting device, which comprises:

a fixed wall located at one end of a space, two lateral ends of the fixed wall being each provided with a first pivot, and the fixed wall having a fixed backdrop surface that faces away from the one end of the space;

a movable wall disposed beside the fixed wall, two lateral ends of the movable wall being each provided with a second pivot, and the movable wall having a first movable backdrop surface corresponding to the fixed backdrop surface; and

two foldable walls pivoted between the first pivots and the second pivots respectively, each of the foldable walls being formed by a plurality of foldable sub-walls pivoted together to make the foldable wall extendable and foldable, the foldable walls each having a respective foldable backdrop surface, and the movable wall being adapted to move to the other end of the space as the foldable walls extend so that the fixed backdrop surface, the first movable backdrop surface and the foldable backdrop surfaces are located around the space.

Through what described above, the movable wall can move between the two ends of the space as the foldable walls extend and retract. When the movable wall moves to the one end of the space, wall surfaces of the space can provide a first wall-surface backdrop; and when the movable wall moves to the other end of the space, the fixed backdrop surface, the first movable backdrop surface and the foldable backdrop surfaces move to the inner walls of the space respectively to provide a second wall-surface backdrop.

Accordingly, the fixed wall, the movable wall and the foldable walls can be extendably erected on wall surfaces of an indoor or outdoor space so that the indoor or outdoor backdrop can be replaced at will to increase the convenience in use.

In practice, the space may be an indoor space or an outdoor space, and at least one piece of extendable furniture is disposed on the fixed backdrop surface, the first movable backdrop surface or either of the foldable backdrop surfaces.

In an embodiment, the movable wall has a second movable backdrop surface that faces away from the one end of the space; and at least one piece of extendable furniture is disposed on the second movable backdrop surface.

In another embodiment, the space is provided with a guide rail at two sides respectively, the two guide rails are parallel with each other, and the second pivots each have an end slidably disposed on a corresponding one of the guide rails; and any two adjacent ones of the foldable sub-walls are pivoted together via a third pivot which has an end slidably disposed on a corresponding one of the guide rails.

In a further embodiment, the present invention further comprises at least one access opening formed in the fixed wall, the movable wall or either of the foldable walls; and the at least one access opening corresponds to an access of the space.

Furthermore, the present invention further comprises at least one backdrop window that is formed in the fixed wall, the movable wall or either of the foldable walls and corresponds to a window of the space.

DETAILED DESCRIPTION OF THE INVENTION

Referring toFIG. 1, there is shown a perspective view of a first embodiment of the present invention; and referring toFIG. 2toFIG. 4together, an extendable backdrop erecting device of the present invention comprises a fixed wall1, a movable wall2and two foldable walls3.

The fixed wall1is in a rectangular form, and is vertically located on a wall surface at one end of a space8. Two lateral ends of the fixed wall1are each provided with a vertical first pivot41. The fixed wall1has a fixed backdrop surface11that faces away from the one end of the space8, and the fixed backdrop surface11has a particular color, pattern or design.

The space8may be an indoor space8such as a home, a school or an office in this embodiment. The fixed wall1is disposed between the first pivots41, with the fixed backdrop surface11facing towards a wall surface at the other end of the indoor space8.

The movable wall2is in a rectangular form, and is vertically and movably disposed beside the fixed wall1and parallel with the fixed wall1. Two lateral ends of the movable wall2are each provided with a vertical second pivot42. The movable wall2has a first movable backdrop surface21corresponding to the fixed backdrop surface11, and a second movable backdrop surface22that faces away from the one end of the indoor space8. The first movable backdrop surface21and the second movable backdrop surface22each have a particular color, pattern or design. The movable wall2is disposed between the second pivots42, with the first movable backdrop surface21facing towards the fixed backdrop surface11.

The foldable walls3are each in a rectangular form, and are pivoted between the first pivots41and the second pivots42respectively. Each of the foldable walls is formed by a plurality of rectangular foldable sub-walls31pivoted together to make the foldable wall3extendable and foldable in a horizontal direction, and any two adjacent ones of the foldable sub-walls31are pivoted together via a vertical third pivot43. There are at least two foldable sub-walls31,31afor each of the foldable walls3(as shown inFIG. 10), and the foldable sub-walls31,31acan swing with respect to each other to overlap or extend.

In this embodiment, four foldable sub-walls31,31a,31b,31cfor each of the foldable walls3will be illustrated as an example. In this example, the foldable sub-walls31,31a,31b,31ccan be arranged as one piece in the horizontal direction; adjacent lateral ends of the foldable sub-walls31,31aare pivoted together via the third pivot43; adjacent lateral ends of the foldable sub-walls31a,31bare pivoted together via the third pivot43a; and adjacent lateral ends of the foldable sub-walls31b,31care pivoted together via the third pivot43b.

Adjacent lateral ends of each of the foldable sub-walls31and the fixed wall1are pivoted together via a corresponding one of the first pivots41, and adjacent lateral ends of each of the foldable sub-walls31cand the movable wall2are pivoted together via a corresponding one of the second pivots42. Thereby, each of the foldable walls3is foldable and extendable.

The foldable walls3each have a respective foldable backdrop surface30of a particular color, pattern or design. The movable wall2is capable of moving to the other end of the indoor space8as the foldable walls3extend so that the fixed backdrop surface11, the first movable backdrop surface21and the foldable backdrop surfaces30are located on inner walls around the indoor space8.

In a more specific embodiment, the present invention also comprises the following features.

The fixed wall1, the movable wall2and the foldable walls3may be made of wood, and may also be made of light materials such as cardboards, curtains, rubber films and Styrofoam boards. The first, the second and the third pivots41,42,43,43a,43bmay be made of light materials such as aluminum extrusions and stainless steel.

Guide rails51,52parallel with each other are disposed on the ground at two sides of the indoor space8respectively, and bottom ends of the second pivots42and the third pivots43aare slidably disposed on the guide rails51,52respectively to be guided by the guide rails51,52so as to increase the movement stability of the foldable walls3when folding and extending.

The present invention further comprises at least one opening6through which a user can go out and in, and the at least one opening6is formed in the fixed wall1, the movable wall2or either of the foldable walls3. In this embodiment, the fixed wall1may be disposed on a wall surface in which an access91of the indoor space8is formed; there may be two openings6,6a, which are formed in the fixed wall1and the movable wall2respectively and extend through the fixed backdrop surface11and the first and the second movable backdrop surfaces21,22respectively; and the openings6,6acorrespond to the access91of the indoor space8.

Furthermore, the present invention further comprises at least one backdrop window7, which is formed in the fixed wall1, the movable wall2or either of the foldable walls3and corresponds to an indoor window92of the indoor space8. In this embodiment, the at least one backdrop window7may be formed in the foldable sub-wall31bof one of the foldable walls3and extends through the corresponding foldable backdrop surface30.

Through the aforesaid components, the user may move the movable wall2towards the one end of the indoor space8(as shown inFIG. 2) so that the foldable sub-walls31,31a,31b,31coverlap with each other and the movable wall2is located at the one end of the indoor space8. Meanwhile, the second movable backdrop surface22of the movable wall2is displayed in the indoor space8, and combines with the inner walls of the indoor space8to forma first wall-surface backdrop. Moreover, the opening6ain the second movable backdrop surface22just corresponds to the access91, so the user can go into and out of the indoor space8through the opening6ain the second movable backdrop surface22and the access91.

The user may also arbitrarily move the movable wall2towards the other end of the indoor space8(as shown inFIG. 3andFIG. 4) so that the foldable sub-walls31,31a,31b,31cextend, and the movable wall2moves to the wall surface at the other end of the indoor space8as the foldable walls3extend. In this process, the second pivots42and the third pivots43aare guided by the guide rails51,52so that the movable wall2and the foldable walls3move stably, and the user can move around the fixed wall1, the movable wall2and the indoor space8through the opening6ain the movable wall2. Meanwhile, the fixed wall1, the movable wall2and the foldable walls move to the inner walls around the indoor space8respectively so that the fixed backdrop surface11, the first movable backdrop surface21and the foldable backdrop surfaces30are displayed in the indoor space8respectively to form a second wall-surface backdrop. The opening6in the fixed backdrop surface11just corresponds to the access91, and the backdrop window7in one of the foldable backdrop surfaces30just corresponds to the indoor window92. Thereby, the user can go into and out of the indoor space8through the opening6in the fixed backdrop surface11and the access91, and can view the outside through the backdrop window7in the foldable backdrop surface30.

Through what described above, the movable wall2can move between the two ends of the space8as the foldable walls3extend and retract. When the movable wall2moves to the one end of the space8, the wall surfaces of the space8can provide the first wall-surface backdrop. When the movable wall2moves to the other end of the space8, the fixed backdrop surface11, the first movable backdrop surface21and the foldable backdrop surfaces30move to the four sides of the space8respectively to provide the second wall-surface backdrop.

Accordingly, the fixed wall1, the movable wall2and the foldable walls3can be extendably erected on the wall surfaces of the indoor or outdoor space8so that the indoor or outdoor backdrop can be replaced at will. Thereby, the problems with the prior art that the conventional indoor backdrop arranged on inner walls of an indoor space cannot be replaced and changed at will and that using the partitions can only cause extension and retraction of a part of the indoor space in terms of variations are overcome, and the convenience in use is increased.

Referring toFIG. 5, there is shown a cross-sectional top view of a second embodiment of the present invention. In this embodiment, there may also be two groups each comprising a fixed wall1, a movable wall2and two foldable walls3, and the two groups are arranged at the two ends of the indoor space8respectively. The other components and implementations are the same as those in the first embodiment. In this way, a third indoor backdrop can be provided in the indoor space8.

Referring toFIG. 6, there is shown a cross-sectional top view of a third embodiment of the present invention. In this embodiment, the fixed wall1may also be disposed on a wall surface of the indoor space8in which the access91is not formed; the opening6is formed in the foldable sub-wall31cof one of the foldable walls3, and can correspond to the access91when the foldable wall3extends (as shown inFIG. 7); and the backdrop window7is formed in the movable wall2and corresponds to the indoor window92. The other components and implementations are the same as those in the first embodiment.

Referring toFIG. 8, there is shown a cross-sectional top view of a fourth embodiment of the present invention. In this embodiment, there may be two groups each comprising a fixed wall1, a movable wall2and two foldable walls3; and the fixed walls1may be respectively disposed on a wall surface of the indoor space8in which the access91is formed and a wall surface of the indoor space8in which the access91is not formed. The other components and implementations are the same as those in the aforesaid embodiments. In this way, a third indoor backdrop can be provided in the indoor space8.

Referring toFIG. 9, there is shown a cross-sectional front view of a fifth embodiment of the present invention. In this embodiment, the fixed wall1, the movable wall2and the foldable walls3may also be disposed on a ceiling of the indoor space8so that the movable wall2and the foldable walls3are extendable and foldable in a vertical direction; and the opening6and the backdrop window7may be formed in the fixed wall1, the movable wall2or either of the foldable walls3according to the positions of the access91and the indoor window92. The other components and implementations are the same as those in the aforesaid embodiments.

Referring toFIG. 10, there is shown a cross-sectional top view of a sixth embodiment of the present invention. In this embodiment, the movable wall2moves towards the other end of the indoor space8as the two foldable sub-walls31,31aof each of the foldable walls3extend; and the movable wall2does not move to the wall surface at the other end of the indoor space8so that the indoor space8is divided by the movable wall2into a first movable region81located between the fixed wall1, the movable wall2and the foldable walls3and a second movable region82located between the movable wall2and the wall surface at the other end of the indoor space8. The fixed backdrop surface11, the first movable backdrop surface21and the foldable backdrop surfaces are displayed in the first movable region81respectively to form the second wall-surface backdrop; and the second movable backdrop surface22combines with the inner walls of the indoor space8to form the first wall-surface backdrop. In this way, the present invention can not only partition the space, but can also provide different wall-surface backdrops respectively.

Furthermore, at least one piece of extendable furniture93a,93b(as shown inFIG. 3andFIG. 4) is disposed on the fixed backdrop surface11, the first movable backdrop surface21, the second movable backdrop surface22or either of the foldable backdrop surfaces30. The extendable furniture93a,93bmay be chairs, tables or cupboards. After the movable wall2moves to the other end of the space8so that the fixed backdrop surface11, the first movable backdrop surface21and the foldable backdrop surfaces30move to the four sides of the space8respectively, the extendable furniture93a,93bcan extend for use by people.

In addition to this, the space8may also be an outdoor space; and in this case, the fixed wall1is located on a wall surface at one end of the outdoor space. The other components and implementations are the same as those in the aforesaid embodiments.