Screen device

Abstract

To provide a screen device which has a simple device structure and can be set easily.SOLUTION: A screen device 100 includes: a screen 110; a case 120 capable of storing the screen 110 so that the screen can be drawn out or be drawn in; and a side arm 130 capable of extending the screen 110 drawn out from the case 120, to above the case 120. The case 120 can make the side arm 130 stand removably and also can contain the side arm 130. The structure can realize a screen device which has a simple device structure and can be set easily.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a screen device. [Background technology]

[0002] A conventional screen device is shown in JP 11-002870 A (Patent Document 1). In the screen device disclosed in this document, a screen winding and storage section is provided for winding and storing the screen inside a case, and when the screen is pulled out upward, the screen supports are raised from the case and attached to the left and right sides of the screen, and when the screen is stored, the screen supports are rotated and retracted into the case. In this way, the screen can be easily pulled out when the screen device is in use, and can be easily stored when not in use. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-002870 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in a conventional screen device as disclosed in Patent Document 1, the screen support for tensioning the screen is configured to be rotatable relative to the case, which poses a problem of a complex device structure.

[0005] The present invention has been made in view of the above problems, and an object of the present invention is to provide a screen device that has a simple structure and is easy to install. [Means for solving the problem]

[0006] In order to solve the above problems, according to a first aspect of the present invention, there is provided a screen device comprising: a screen; a base portion capable of storing the screen so that it can be pulled out and pulled back; and a support member capable of stretching the screen pulled out from the base portion above the base portion, wherein the base portion is capable of erecting the support member in a detachable manner and is capable of storing the support member.

[0007] According to this configuration, it is possible to realize a screen device that has a simple device structure and is easy to install.

[0008] The present invention can be applied in various ways. For example, the base part may be provided with a storage part into which the support member can be inserted and stored. With this configuration, the support member can be stored in the base part without a complicated structure in which it is folded or expanded and stored, so that the device structure can be simplified. In addition, since the support member is stored by being inserted, it can be easily removed when used.

[0009] The support members may be provided in opposition to each other so as to support both left and right ends of the screen, and the storage sections may be provided on the front and rear sides of the base section and each may be capable of storing a pair of the support members. With this configuration, since the pair of support members can be stored on the front and rear sides of the base section, the shape of the base section, which also serves as the foundation of the screen, can be formed without being biased to one side in the front-to-rear direction.

[0010] The storage section may be provided with a storage holding section that holds the inserted support member in a stored state. With this configuration, the support member stored in the storage section can be held so as not to fall out inadvertently.

[0011] In addition, an upper support member may be connected to the upper end of the screen, and the strut members may be inserted through the upper support member to slidably support the upper support member. With this configuration, the screen can be erected on the base portion simply by inserting a pair of strut members through the upper support member.

[0012] In addition, according to a second aspect of the present invention, there is provided a screen device comprising: a screen; an upper support member connected to an upper end of the screen; a base portion capable of storing the screen so that it can be pulled out and retracted; and a support member through which the upper support member is inserted and slidably supported, thereby enabling the screen to be stretched above the base portion, wherein the support member can be erected on the base portion in a manner that allows it to be attached and detached freely.

[0013] According to this configuration, it is possible to realize a screen device that has a simple device structure and is easy to install.

[0014] In addition, the base portion may be formed with a holding portion capable of holding a lower end portion of the strut member, and an insertion opening through which the strut member can be inserted may be formed near an end portion of the upper support member, and the strut member may be held by the holding portion via the insertion opening. According to this configuration, the holding portion that holds the lower end of the strut member may be connected to the insertion opening of the upper support member, so that the strut member can be inserted into the base portion via the upper support member.

[0015] In addition, at least one of the upper support member and the base portion may be formed with a positioning portion that determines the positions of the base portion and the upper support member so that the insertion opening and the holding portion are aligned. With this configuration, the positioning portion restricts the longitudinal movement of the upper support member relative to the base portion, so that the post member can be inserted into the insertion opening at an appropriate position.

[0016] The holding portion may be formed with a pole member engaging portion that can engage and disengage with the lower end of the pole member. According to this configuration, by providing the pole member engaging portion within the holding portion, it is possible to prevent the pole member from accidentally coming off the base portion.

[0017] In addition, when the screen is stored in the base section, the upper support member may protrude from the upper part of the base section, a recess may be provided in the bottom of the base section, and the upper support member protruding from the upper part of the base section arranged below may be stored in the recess of the base section arranged above, so that multiple base sections can be stacked vertically. With this configuration, multiple base sections can be stably stacked compactly. Effect of the Invention

[0018] According to the present invention, it is possible to provide a screen unit that has a simple structure and is easy to install. Other effects of the present invention will be described in the description of the preferred embodiment of the present invention below. [Brief description of the drawings]

[0019] [Figure 1] 1 is a front view showing an overall configuration of a screen unit 100 according to a first embodiment. [Diagram 2] FIG. 2 is a plan view of the screen unit 100 in a stored state. [Diagram 3] 1A and 1B are perspective views of a screen unit 100 in a stored state, where (a) shows the overall configuration and (b) shows an enlarged view of one end side. [Figure 4] 1A and 1B are diagrams showing one end side of the screen unit in a stored state, in which (a) is a front view and (b) is a bottom view. [Diagram 5] 5 is a cross-sectional view taken along line AA in FIG. 4. [Figure 6] FIG. 2 is a side view of the screen unit 100 in a stored state. [Figure 7]7A and 7B are diagrams showing the vicinity of an end portion of the screen unit 100, where (a) is a cross-sectional view taken along line BB in FIG. 6, and (b) is a cross-sectional view taken along line CC in FIG. [Figure 8] 1A and 1B are diagrams showing a side arm 130, in which (a) is a perspective view and (b) is a side view. [Figure 9] 11A to 11C are perspective views showing a procedure for switching the screen unit 100 to a usage state, in which the stand 150 is unfolded and the side arm 130 is pulled out. [Figure 10] 13A and 13B are oblique views showing the procedure for supporting the side arm 130 on the side cap 123, in which (a) shows the state before the side arm 130 is inserted into the side cap 123, and (b) shows the state after the side arm 130 is engaged with the lower engagement portion 126. [Figure 11] 10A and 10B are cross-sectional views showing the procedure for removing the side arm 130 from the side cap 123, in which (a) shows the side arm 130 engaged with the lower engagement portion 126, and (b) shows the side arm 130 disengaged from the lower engagement portion 126. [Figure 12] 11A and 11B are oblique views showing the procedure for stopping the top rail 140 in the deployed position, in which (a) shows the state in which the top rail 140 is being raised along the side arm 130, and (b) shows the state in which the top rail 140 is engaged with the side arm 130. [Figure 13] 1A and 1B are front views showing the procedure for releasing the engagement between the top rail 140 and the side arm 130, in which (a) shows the state in which the top rail 140 is engaged with the side arm 130, and (b) shows the state in which the engagement between the top rail 140 and the side arm 130 has been released. [Figure 14] 1A and 1B are cross-sectional views showing the procedure for releasing the engagement between the top rail 140 and the side arm 130, in which (a) shows the state in which the top rail 140 is engaged with the side arm 130, and (b) shows the state in which the engagement between the top rail 140 and the side arm 130 has been released. [Figure 15] 10A and 10B are bottom views showing the operation of the stand 150, in which (a) shows a state in which the stand 150 has been switched from open to closed, and (b) shows a state in which the stand 150 is held at an intermediate angle. [Figure 16] 10A and 10B are plan views showing the operation of the stand 150, in which (a) shows the stand 150 in a closed state, (b) shows the stand 150 in a partially opened state, and (c) shows the stand 150 in an open state. [Figure 17] 5A and 5B are perspective views showing a procedure for supporting the side arm 130 on the side cap 123, in which (a) shows the stored state and (b) shows the state in which the side arm 130 is supported on the side cap 123. FIG. [Figure 18] This is an oblique view showing the procedure for stretching the screen 110 above the case (base portion) 120, where (a) shows the state in which the top rail 140 is being raised along the side arm 130, and (b) shows the state in which the screen 110 has been stretched above the case 120. [Figure 19] 1A and 1B are plan views showing an arrangement of a plurality of screen devices 100, in which (a) shows a state in which they are arranged in a line, and (b) shows a state in which they are arranged in a cross shape. [Figure 20] 1A and 1B are diagrams showing a state in which a plurality of screen devices 100 are stacked, in which (a) is a side view showing the state immediately before two screen devices 100 are stacked, (b) is a side view showing the state in which the two screen devices 100 are stacked, and (c) is a perspective view showing the state in which the two screen devices 100 are stacked. [Figure 21] 11A and 11B are side views showing the screen unit 200 of the second embodiment, in which (a) shows a state before the side arm 230 is supported by the side cap 223, and (b) shows a state in which the side arm 230 is supported by the side cap 223. [Figure 22] 7A and 7B are diagrams showing a screen unit 300 of a third embodiment, in which (a) is an oblique view showing a state in which a top rail 340 has been pulled up from a case 120, (b) is an oblique view showing the screen unit 300 in a stored state, and (c) is a diagram equivalent to the BB cross-sectional view of FIG. 6 showing the screen unit 300 in a stored state. [Figure 23]13A and 13B are perspective views showing a screen device 400 of a fourth embodiment, in which (a) shows a state in which a top rail 140 is slid upward along a side arm 430, and (b) shows a state in which the top rail 140 is engaged midway along the side arm 430. [Figure 24] 13A and 13B are diagrams showing a screen unit 500 of a fifth embodiment, in which (a) is an oblique view showing a state in which a joint 570 is removed, (b) is a plan view showing a state in which two screen units 500 are connected with a joint 570, and (c) is a plan view showing a state in which three screen units 500 are connected with joints 570. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this specification and the drawings, components having substantially the same functional configurations are designated by the same reference numerals, and duplicated explanations will be omitted.

[0021] (First embodiment) The overall configuration of the screen unit 100 according to this embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 is a front view showing the overall configuration of the screen unit 100 according to this embodiment. FIG. 2 is a plan view of the screen unit 100 in a stored state. FIG. 3 is a perspective view of the screen unit 100 in a stored state. As shown in FIG. 1, the screen unit 100 includes a screen 110, a case (base portion) 120 in which the screen 110 can be stored so as to be pulled out and pulled back, a side arm (support member) 130 in which the screen 110 pulled out of the case 120 can be stretched above the case 120, a top rail (upper support member) 140 connected to the upper end of the screen 110 and slidably supported by the side arm 130, and a stand (leg member) 150 rotatably provided on the lower surface of the left and right ends of the case 120. The case 120 is configured so that the side arm 130 can be detachably set upright and can be stored. Hereinafter, each component of the screen unit 100 will be described.

[0022] (Screen 110) The screen 110 shields the opening. As shown in Fig. 1, the lower end of the screen 110 is connected to a winding pipe 160 provided inside the case 120 so as to be capable of being wound up and unwound, and the screen 110 can be stored in the case 120 so as to be able to be pulled out and retracted. The screen 110 can be stretched above the case 120 by a side arm 130. A top rail 140 is connected to the upper end of the screen 110.

[0023] (Case 120) The case 120 is capable of storing the screen 110 so that it can be pulled out and retracted. As shown in FIG. 1, the case 120 is configured in an elongated shape with a width capable of storing the screen 110. The case 120 mainly stores a winding pipe 160 to which the screen 110 is connected so that it can be wound up and unwound, and a side arm 130 to which the screen 110 can be stretched. The configuration of the case 120 will be described in detail with reference to FIGS. 4 to 7. FIG. 4 is a diagram showing one end side of the screen unit 100 in a stored state. FIG. 5 is a cross-sectional view taken along line AA in FIG. 4. FIG. 6 is a side view of the screen unit 100 in a stored state. FIG. 7 is a cross-sectional view showing the vicinity of an end of the screen unit 100.

[0024] 2 and 5, side arm storage sections 121 into which a pair of side arms 130 can be inserted and stored are provided in the case 120 at symmetrical positions in the front-rear direction across the winding pipe 160. Also, since the side arm storage sections 121 are provided below the front and rear sides of the case 120 as shown in FIG. 5, a sufficient space for increasing the winding diameter of the winding pipe 160 can be secured within the case 120. Also, a top rail storage recess 122 capable of storing the top rail 140 is formed in the upper portion of the case 120. The top rail storage recess 122 stores the top rail 140, thereby restricting movement in the front-rear direction.

[0025] As shown in Figs. 2 and 3, side caps 123 are provided on both ends of the case 120. Although the case 120 and the side caps 123 are separate in this embodiment, they may be configured as an integrated unit. The side caps 123 are hollow and have a substantially trapezoidal shape in a plan view. That is, the side caps 123 are composed of a vertical end face 123a formed substantially perpendicular to the left-right direction of the case 120, and two inclined end faces 123b formed symmetrically at approximately 45 degrees from both ends of the vertical end face 123a in the front-rear direction of the case 120. The side caps 123 are substantially H-shaped in a side view, as shown in Fig. 6.

[0026] In this embodiment, the angle of the inclined end face 123b is set to approximately 45 degrees, but it can be designed to be any angle less than 90 degrees with respect to the vertical end face 123a. Depending on the angle of the inclined end face 123b, the angle of the screen 110 changes when a plurality of screen devices 100 are connected.

[0027] The position of the end of the screen 110 is affected by the length of the winding pipe 160, but the winding pipe 160 cannot be extended to a point where it overlaps with the inclined end surface 123b of the side cap 123. In this regard, since the side cap 123 is substantially trapezoidal in a plan view, the length of the inclined end surface 123b in the left-right direction is short. Therefore, even in the case of a screen unit 100 having an inclined end surface 123b, the winding pipe 160 can be disposed up to the vicinity of the end of the screen unit 100. Therefore, the screen 110 is disposed up to the vicinity of the end of the screen unit 100.

[0028] 6, a recessed portion at the upper part of the substantially H-shape of the side cap 123 constitutes a holding portion 124 capable of holding the lower end of a side arm 130 inserted into the side cap 123. As shown in FIG. 7(a), an opening communicating with a side arm insertion port 146 of the guide cap 142 is formed in the holding portion 124, and the side arm 130 is inserted through the holding portion 124 together with the side arm insertion port 146. The holding portion 124 also accommodates the guide caps 142 provided at both ends of the top rail 140. The holding portion 124 restricts movement of the top rail 140 in the front-rear direction.

[0029] 7(a), a positioning recess 124a is formed in the holding portion 124 of the side cap 123 when viewed from the front. The positioning protrusion 144 of the guide cap 142 fits into the positioning recess 124a, restricting movement of the top rail 140 in the left-right (longitudinal) direction. Thus, the top rail 140 is positioned by the holding portion 124 of the side cap 123 and the positioning recess 124a.

[0030] As shown in Fig. 7(a), the holding portion 124 has a step portion 123c formed on the lower portion of the surface of the side cap 123 that abuts against the case 120, the step portion 123c protruding in a step-like manner in a direction away from the case 120. The step portion 123c is elastically deformable in the left-right direction of the case 120. The lower end of the step portion 123c serves as a lower release portion 125 for releasing the engagement between the lower end of the side arm 130 and the side cap 123. The step portion 123c has a lower engagement portion 126 formed above the lower release portion 125 for engaging with the side arm 130.

[0031] As shown in Fig. 6, a storage section inlet 127 for inserting the side arm 130 into the side arm storage section 121 is formed on the inclined end faces 123b on both sides of the side cap 123. The storage section inlet 127 communicates with the side arm storage section 121 as shown in Fig. 7(b). A storage holding section 127a for holding the side arm 130 stored in the side arm storage section 121 so as not to slip out is provided at the connection between the storage section inlet 127 and the side arm storage section 121. The storage section inlet 127 is formed in both side caps 123 provided on both ends of the case 120, but may be formed in only one of the side caps 123.

[0032] As shown in Fig. 7(b), the upper locking portion 133 of the side arm 130 stored in the side arm storage portion 121 comes into contact with and is held by the storage holding portion 127a. When removing the side arm 130 from the side arm storage portion 121, a finger is inserted into the storage portion entrance 127 and the swinging piece 132 is pressed and swung. Then, the upper locking portion 133 moves away from the storage holding portion 127a, and the side arm 130 can be removed.

[0033] Furthermore, the side cap 123 is formed with a bottom protrusion 123d extending toward the bottom of the case 120, as shown in Fig. 4. The bottom protrusion 123d is formed with a rotation support shaft 128 protruding downward, which rotatably supports the stand 150, as shown in Fig. 5. Furthermore, the bottom surface of the bottom protrusion 123d is formed with a stopper 129 that engages with a ratchet 154 of the stand 150, which will be described later in detail, as shown in Fig. 4(b).

[0034] As shown in FIG. 1, a winding pipe 160 is disposed in the case 120 over the entire length in the longitudinal direction. As shown in FIG. 5, the winding pipe 160 is disposed in the center of the width direction of the case 120, and the lower end of the screen 110 is connected thereto so as to be able to be wound and unwound. The winding pipe 160 is rotatably supported at both ends by a set frame 162 fixed to the bottom of the case 120 as shown in FIG. 5, and a side plate 164 provided on the set frame 162 as shown in FIG. 7. In this embodiment, the side plates 164 are provided on both ends of the set frame 162 fixed to the bottom of the case 120, but the side plates 164 may be fixed directly to the bottom of the case 120, or the side caps 123 may be provided with the function of the side plates, and both ends of the winding pipe 160 may be rotatably supported by the side caps 123.

[0035] (Side Arm 130) The side arms 130 enable the screen 110, pulled out from the case 120, to be stretched above the case 120. As shown in Fig. 1, the side arms 130 can be detachably mounted upright on side caps 123 provided on both ends of the case 120. The pair of side arms 130 mounted upright on the side caps 123 support both left and right ends of the screen 110.

[0036] The configuration of the side arm 130 will be described with reference to FIG. 8. FIG. 8 shows the side arm 130, where (a) is a perspective view and (b) is a side view. As shown in FIG. 8, the side arm 130 has a long rectangular prism shape and a restricting portion 131 is provided at the upper end. The shape of the side arm 130 may be a long circular cylinder, an elliptical cylinder, a hexagonal prism, or the like. The restricting portion 131 is formed with an outer periphery larger than the side arm insertion opening 146 of the top rail 140, and restricts the movement of the top rail 140 in the upward direction. This prevents the top rail 140 from falling off the side arm 130.

[0037] Further, the side arm 130 is formed with a swinging piece 132 that is elastically deformed so as to swing in the left-right direction of the case 120. An upper locking portion 133 is formed at a midpoint in the length direction of the swinging piece 132, and an upper releasing portion 134 is formed at the tip of the swinging piece 132. The upper locking portion 133 is capable of locking with and releasing from a receiving portion 148 of the guide cap 142.

[0038] The upper locking portion 133 and the receiving portion 148 are locked together by the receiving portion 148 climbing over the upper locking portion 133 and rising. That is, when the movement of the top rail 140 in the upward direction is restricted by the restricting portion 131, the receiving portion 148 is locked together with the upper locking portion 133. The upper locking portion 133 and the receiving portion 148 are released from the locked state by operating the upper releasing portion 134 to swing the swing piece 132 and move the upper locking portion 133 away from the receiving portion 148.

[0039] 8, a step portion 136 and a hook portion 135 are provided at the lower end of the side arm 130. The hook portion 135 is formed on the surface of the side arm 130 opposite to the swing piece 132. The hook portion 135 engages with the lower engagement portion 126 of the side cap 123 to restrict the upward movement of the side arm 130.

[0040] (Top rail 140) The top rail 140 is provided over the entire width of the upper end of the screen 110. As shown in FIG. 3, the top rail 140 has a long rectangular shape, and guide caps 142 are provided at both longitudinal ends. The top rail 140 is accommodated in the top rail accommodation recess 122 of the case 120 so that the upper portion protrudes from the case 120. The guide cap 142 is located on the side cap 123. As shown in FIG. 7, a positioning protrusion 144 is formed at the bottom of the guide cap 142, which fits into the positioning recess 124a of the side cap 123. This restricts the guide cap 142 from moving in the left-right direction of the side cap 123.

[0041] 3, the guide cap 142 is hollow and has a side arm insertion opening 146 formed at the top into which the side arm 130 can be inserted. The side arm insertion opening 146 is formed in a square shape that is the same as the outer periphery of the side arm 130, and is sized so that there is almost no gap between the side arm 130 and the side arm 130 when the side arm 130 is inserted. This makes it possible to prevent the side arm 130 from wobbling. A receiving portion 148 is formed at the end of the guide cap 142 to which the upper locking portion 133 of the side arm 130 is locked.

[0042] In this embodiment, the top rail 140 is configured so that its upper portion protrudes from the case 120, but it may be configured so that it does not protrude. In this case, for example, providing a handle on the upper surface of the top rail makes it easier to operate. If the handle is recessed in the top rail when not in use and is configured to be pulled up from the top rail when in use, the design is improved.

[0043] (Stand 150) The stand 150 is for placing the case 120 on a table surface or the like. As shown in Figs. 1 and 4, the stand 150 is rotatably provided on the front and rear sides of the lower surface of the left and right ends of the case 120. One end of the stand 150 is disposed below the bottom protrusion 123d of the side cap 123, and the other end is formed with a downward inclination so as to gradually move away from the bottom of the case 120. With this configuration, the stand 150 can be easily rotated by inserting a hand into the gap between the bottom of the case 120 and the stand 150.

[0044] At one end of the stand 150, as shown in Fig. 5, a fitting hole 152 is formed which is rotatably fitted onto the rotary support shaft 128 of the side cap 123. At the outer periphery of the fitting hole 152, as shown in Fig. 4(b), a ratchet 154 is formed. The ratchet 154 is formed at 45 degree intervals around a semicircle. The ratchet 154 is a holding mechanism capable of holding the stand 150 at approximately the same angle with respect to the vertical end face 123a and the inclined end face 123b.

[0045] Therefore, ratchet 154 engages with and is held by stopper 129 when stand 150 rotates to a position where stand 150 is disposed along the left-right direction of case 120, a position at approximately 45 degrees with respect to vertical end face 123a which is at approximately the same angle as inclined end face 123b of side cap 123, and a position which is approximately perpendicular to the left-right direction of case 120 which is at approximately the same angle as vertical end face 123a. The operation of stand 150 will be described later.

[0046] The configuration of each part of the screen unit 100 has been described above. The operation of the screen unit 100 will be described below. First, the insertion and removal of the side arm 130 from the case 120 will be described with reference to Fig. 9. Fig. 9 is a perspective view showing a state in which the stand 150 is unfolded and the side arm 130 is pulled out.

[0047] 9, when side arm 130 is stored, upper release portion 134 disposed at storage section entrance 127 is pressed to move upper locking portion 133 away from storage retaining portion 127a, and side arm 130 is pulled out in the direction of arrow a by holding restricting portion 131. Then, side arm 130 is pulled out from side arm storage section 121 of case 120.

[0048] When storing the side arm 130 in the side arm storage section 121, the hook portion 135 is inserted into the side arm storage section 121 from the storage section entrance 127. Then, the side arm 130 is stored in the side arm storage section 121 by pushing the restricting portion 131 to a position where it abuts against the entrance of the side arm storage section 121. At this time, as shown in FIG. 7(b), the upper locking portion 133 abuts against the storage holding portion 127a, and the side arm 130 is held so as not to accidentally fall out of the side arm storage section 121. The side arm 130 can be inserted into the side arm storage section 121 from any of the four storage section entrances 127 on the front, rear, left and right sides formed in the side caps 123 on both ends of the case 120.

[0049] Hereinafter, a procedure for attaching and detaching the side arm 130 to and from the side cap 123 will be described with reference to Figures 10 and 11. Figure 10 is a perspective view showing a procedure for supporting the side arm 130 on the side cap 123. Figure 11 is a cross-sectional view showing a procedure for removing the side arm 130 from the side cap 123.

[0050] First, the procedure for supporting the side arm 130 on the side cap 123 will be described. As shown in FIG. 10(a), the top rail 140 is accommodated in the top rail accommodation recess 122 of the case 120. The hook portion 135 of the side arm 130 is placed downward, and is inserted into the side cap 123 through the side arm insertion port 146 as shown by the arrow b. When the side arm 130 is inserted to the lower end of the side cap 123, the hook portion 135 overcomes the lower engagement portion 126 and engages from the lower side, as shown in FIG. 10(b). Note that a rib may be formed on one side of the hook portion 135, and a groove portion matching the shape of the rib may be formed in the side arm insertion port 146. In this case, the hook portion 135 cannot be inserted into the side arm insertion port 146 unless the rib and the groove portion are aligned, so that the side arm 130 can be installed without making a mistake in the direction of insertion into the side cap 123.

[0051] Thus, upward movement of side arm 130 is restricted. Furthermore, downward movement of side arm 130 is restricted by step portion 136 of side arm 130 abutting against the upper end of step portion 123c of side cap 123. Furthermore, the outer periphery of side arm 130 is held by holding portion 124, and rattling in the front-rear and left-right directions is also suppressed. In this manner, side arm 130 is erected on the left and right ends of case 120.

[0052] The procedure for supporting the side arm 130 on the side cap 123 has been described above. The procedure for removing the side arm 130 from the side cap 123 will be described below. As shown in FIG. 11(a), when the lower release portion 125 engaged with the lower engagement portion 126 is pressed in the left-right direction of the case 120 as shown by the arrow c, the step portion 123c elastically deforms toward the case 120 as shown in FIG. 11(b). Therefore, the lower engagement portion 126 and the hook portion 135 are separated from each other, so that the side arm 130 can be raised as shown by the arrow d and removed from the side cap 123.

[0053] Next, the procedure for locking and unlocking the top rail 140 to the side arm 130 will be described with reference to Figs. 12 to 14. Fig. 12 is a perspective view showing the procedure for stopping the top rail 140 at the deployed position. Fig. 13 is a front view showing the procedure for unlocking the top rail 140 from the side arm 130. Fig. 14 is a cross-sectional view showing the procedure for unlocking the top rail 140 from the side arm 130.

[0054] First, the procedure for stopping the top rail 140 at the deployed position of the screen 110 will be described with reference to Fig. 12. The top rail 140 is slid along the side arm 130 to the upper end as shown by the arrow e in Fig. 12(a). Then, as shown in Fig. 12(b), the receiving portion 148 of the guide cap 142 climbs over the upper locking portion 133 of the side arm 130 and the upper end of the guide cap 142 abuts against the restricting portion 131, restricting upward movement. Thus, the receiving portion 148 is locked to the upper locking portion 133, and the top rail 140 is held at the upper end position of the side arm 130.

[0055] Next, a procedure for releasing the engagement between the receiving portion 148 and the upper locking portion 133 will be described with reference to Figures 13 and 14. When the top rail 140 is held at the upper end position of the side arm 130, the lower end of the receiving portion 148 is locked to the upper locking portion 133, as shown in Figures 13(a) and 14(a). In addition, since the restricting portion 131 is disposed at the upper end of the receiving portion 148 with a small gap formed therebetween, the upward movement of the receiving portion 148 is restricted by the restricting portion 131.

[0056] As shown by the arrow f in Fig. 13(b) and the arrow f in Fig. 14(b), when the upper release portion 134 is pressed, the swing piece 132 swings and the upper locking portion 133 moves away from the receiving portion 148. Therefore, the guide cap 142 becomes free to move, and the top rail 140 can be slid downward along the side arm 130 as shown by the arrow g in Fig. 13(b) and the arrow g in Fig. 14(b).

[0057] The above describes the procedure for locking and unlocking the top rail 140 to and from the side arm 130. The operation of the stand 150 will be described below with reference to Figs. 15 and 16. Fig. 15 is a bottom view showing the operation of the stand 150. Fig. 16 is a plan view showing the operation of the stand 150.

[0058] 15(a), the stand 150 can be rotated approximately 90 degrees from a state in which it is stored below the case 120 along the left-right direction of the case 120 to the same position as the vertical end surface 123a that is approximately perpendicular to the left-right direction of the case 120, and is held in these positions by engaging the ratchet 154 with the stopper 129. Also, as shown in FIG. 15(b), the stand 150 is held in a position where the ratchet 154 and the stopper 129 are engaged with each other at an angle of approximately 45 degrees with respect to the vertical end surface 123a, which is approximately the same angle as the inclined end surface 123b of the side cap 123.

[0059] In the stored state, the stand 150 is stored below the case 120 as shown in Fig. 16(a). Depending on the usage state of the screen unit 100, the stand 150 is used in either an approximately 45 degree open state shown in Fig. 16(b) or an approximately 90 degree open state shown in Fig. 16(c). The specific states of the stand 150 depending on the usage state of the screen unit 100 will be described later.

[0060] The above describes the function of the stand 150. Below, the procedure for switching the screen unit 100 from the stored state to the usage state will be described with reference to Figs. 17 and 18. Fig. 17 is a perspective view showing the procedure for supporting the side arm 130 on the side cap 123. Fig. 18 is a perspective view showing the procedure for tensioning the screen 110 above the case 120.

[0061] 17(a), in the stored state, the screen unit 100 has the side arm 130 stored in the side arm storage portion 121 of the case 120, and the top rail 140 stored in the top rail storage recess 122 of the case 120. The stand 150 is also stored below the case 120.

[0062] To put the screen unit 100 into use, the two side arms 130 are removed from the side arm storage section 121 and, as shown in FIG. 17(b), inserted into the side arm insertion openings 146 of the guide caps 142 of the top rail 140 and installed upright on the side caps 123 at the left and right ends of the case 120. The side arms 130 are held by the holding sections 124 and their upward movement is restricted by the lower engagement sections 126. The stand 150 is also drawn out from the case 120. When using the screen unit 100 by itself, it can be stably installed by rotating it to an angle of about 90 degrees with respect to the screen 110.

[0063] After the side arm 130 is thus erected on the side cap 123, the top rail 140 is raised along the side arm 130 as shown by the arrow h in Fig. 18(a) . As the top rail 140 is raised, the screen 110 is unwound from the winding pipe 160 and unfolded.

[0064] When the guide cap 142 rises to a position where it abuts against the restricting portion 131 of the side arm 130, the upper locking portion 133 of the side arm 130 and the receiving portion 148 of the guide cap 142 are locked. Thus, the top rail 140 is held by the side arm 130, and the screen 110 is in an unfolded state. In this way, the screen unit 100 is in a usable state.

[0065] The procedure for switching the screen unit 100 from the stored state to the usage state has been described above. Below, an example of use in which a plurality of screen units 100 are arranged will be described with reference to Fig. 19. Fig. 19 is a plan view in which a plurality of screen units 100 are arranged, (a) showing a state in which they are arranged in a line, and (b) showing a state in which they are arranged in a cross shape.

[0066] When multiple screen devices 100 are arranged in a straight line, the vertical end faces 123a of adjacent cases 120 are brought into surface contact with each other as shown in FIG. 19(a). Surface contact here refers to a state in which the vertical end faces 123a are in contact with each other, but it may also be a face-to-face close state in which the faces are close to each other. In this way, the screen devices 100 can be automatically arranged in a straight line by simply bringing the vertical end faces 123a into surface contact with each other. When the screen devices 100 are arranged in a straight line, the stability of the screen devices 100 is increased if all the stands 150 are rotated by approximately 90 degrees. In this embodiment, an example in which two screen devices 100 are used has been described, but the same installation can be performed when three or more screen devices 100 are used.

[0067] When arranging a plurality of screen units 100 at a right angle, the inclined end faces 123b of adjacent cases 120 are brought into surface contact with each other as shown in Fig. 19(b). In this manner, the screen units 100 can be automatically arranged at a right angle simply by bringing the inclined end faces 123b of adjacent cases 120 into surface contact with each other. When arranging the screen units 100 at a right angle, if the stand 150 is rotated to approximately 45 degrees, the same as the inclined end faces 123b, the stands 150 of adjacent screen units 100 are arranged approximately parallel to each other and do not interfere with each other.

[0068] Four screen units 100 can be arranged in a cross shape by placing the inclined end faces 123b of each screen unit 100 in contact with each other. In the present embodiment, an example using four screen units 100 has been described, but two screen units 100 can be arranged in an L-shape, or three screen units 100 can be arranged in a T-shape.

[0069] Above, a description has been given of an example of use in which a plurality of screen devices 100 are arranged. Below, a method for stacking a plurality of screen devices 100 will be described with reference to Fig. 20. Fig. 20 is a diagram showing a state in which a plurality of screen devices 100 are stacked, where (a) is a side view showing a state immediately before two screen devices 100 are stacked, (b) is a side view showing a state in which the two screen devices 100 are stacked, and (c) is a perspective view showing a state in which the two screen devices 100 are stacked.

[0070] When stacking a plurality of screen devices 100, as shown in Fig. 20(a), two screen devices 100 are arranged one above the other, and the upper screen device 100 is lowered as indicated by the arrow i. Then, as shown in Fig. 20(b), the upper and lower screen devices 100 are stacked such that the approximately H-shaped lower recess (recess) 123e of the side cap 123 of the upper screen device 100 is fitted onto the top rail 140 of the lower screen device 100. At this time, the stand 150 of the upper screen device 100 is placed in the gap between the bottom of the upper case 120 and the upper end of the lower case 120, as shown in Fig. 20(c).

[0071] (Effects of the First Embodiment) As described above, according to this embodiment, it is possible to realize a screen unit 100 that has a simple device structure and is easy to install.

[0072] In addition, since side arm 130 can be stored in case 120 without a complicated structure such as folding or extending side arm 130 for storage, the device structure can be simplified. Also, since side arm 130 is stored by being inserted, it can be easily removed when used.

[0073] Furthermore, since the pair of side arms 130 can be stored in the front and rear of the case 120, the shape of the case 120, which also serves as the base for the screen 110, can be formed without being biased to one side in the front-to-rear direction.

[0074] In addition, the stored side arm 130 can be held so as not to fall off accidentally.

[0075] Moreover, the pair of side arms 130 can be erected on the case 120 simply by inserting them through the top rail 140 .

[0076] Furthermore, by connecting the holding portion 124 that holds the lower end of the side arm 130 to a side arm insertion port 146 of the top rail 140 , the side arm 130 can be inserted through the top rail 140 to the case 120 .

[0077] Furthermore, by providing the lower engaging portion 126 inside the holding portion 124, it is possible to prevent the side arm 130 from accidentally coming off the case 120.

[0078] Additionally, multiple cases 120 can be stably and compactly stacked.

[0079] Furthermore, the top rail 140 allows the screen 110 to be tensioned by a simple operation of simply sliding the side arms 130.

[0080] Furthermore, since the side arms 130 are inserted into both ends of the top rail 140 before the screen 110 is pulled up, there is no need to align both ends of the top rail 140 with the side arms 130 after pulling up the screen 110, improving workability during assembly.

[0081] In addition, since both ends of the top rail 140 can be engaged with and disengaged from the side arms 130, workability in assembly can be improved.

[0082] In addition, the restricting portion 131 can prevent the top rail 140 from falling off the upper end of the side arm 130.

[0083] Furthermore, when the top rail 140 is raised until it abuts against the restricting portion 131, the top rail 140 and the side arm 130 are engaged with each other, thereby improving operability.

[0084] In addition, when the screen units 100 are installed side by side, the stands 150 do not interfere with each other regardless of the arrangement, so that the screen units 100 can be installed without gaps. Furthermore, the left and right ends of the case 120 are formed with a vertical end face 123a formed approximately perpendicular to the left-right direction of the case 120, and two inclined end faces 123b formed symmetrically at a predetermined angle from both ends of the vertical end face 123a in the front-rear direction of the case 120. Therefore, if the end faces are arranged so as to abut or approach each other, the gap between the screens 110 can be further reduced. Even in this case, the stands 150 can be held at approximately the same angle as the angles formed by the end faces to avoid interference between the stands 150. Therefore, it is possible to provide a screen unit 100 that can be installed side by side without gaps regardless of the arrangement.

[0085] Furthermore, since a pair of stands 150 are provided on each of the left and right ends of the case 120, the screen unit 100 can be set up in a stable state.

[0086] Furthermore, by setting the angle of the inclined end surface 123b to 45°, the screen units 100 can be arranged without gaps even when they are arranged in an L-shape or a cross shape.

[0087] Furthermore, since the holding mechanism is the ratchet 154, the angle of the stand 150 can be selected according to the installation method of a plurality of screen devices 100.

[0088] Second embodiment The configuration of a screen unit 200 according to a second embodiment will be described with reference to FIG. 21. FIG. 21 is a side view showing the screen unit 200 of this embodiment, where (a) shows a state before the side arm 230 is supported by the side cap 223, and (b) shows a state in which the side arm 230 is supported by the side cap 223. The screen unit 200 of this embodiment differs from the screen unit 100 of the first embodiment in the configuration for engaging the lower end of the side arm 230 with the side cap 223. The other configurations of the screen unit 200 can be similar to those of the first embodiment. In this embodiment, the configurations different from those of the first embodiment will be mainly described.

[0089] As shown in Fig. 21(a), a bifurcated portion 232 is provided at the lower end of the side arm 230 instead of the hook portion 135 of the first embodiment. The bifurcated portion 232 is configured to include a circular space portion 232a that forms a substantially circular space that engages with a spherical engagement portion 226b described later, and a tip portion 232b that is formed so as to gradually move away from both ends of the lower opening of the circular space portion 232a toward the tip. The bifurcated portion 232 elastically deforms so as to move away from and toward each other.

[0090] As shown in FIG. 21(a), the side cap 223 has a lower engagement portion 226 formed at the center of the bottom protrusion 223d in the front-rear direction, protruding upward. The lower engagement portion 226 is configured to include a rod-shaped protrusion 226a protruding upward from the bottom protrusion 223d and a spherical engagement portion 226b provided at the tip of the rod-shaped protrusion 226a. The spherical engagement portion 226b can be fitted into the circular space portion 232a. Note that the spherical engagement portion 226b may be cylindrical or the like as long as it can be fitted into the circular space portion 232a.

[0091] The configuration of the screen unit 200 of this embodiment has been described above. The operation of the screen unit 200 will be described below. The side arm 230 is inserted into the side cap 223 in the same manner as the side arm 130 of the first embodiment, and is lowered as shown by the arrow j in Fig. 21(a). Then, the spherical engagement portion 226b elastically deforms the tip portion 232b and the circular space portion 232a so as to separate them in the front-rear direction of the side cap 223, and the end portion of the tip portion 232b on the circular space portion 232a side expands to a width that allows the spherical engagement portion 226b to be inserted therethrough.

[0092] 21(b), when the spherical engagement portion 226b is completely inserted into the circular space portion 232a, the tip end 232b is elastically deformed so as to approach each other. Thus, the spherical engagement portion 226b is engaged with the circular space portion 232a. In this manner, the side arm 230 is erected on the side cap 223.

[0093] When removing the side arm 230 from the side cap 223, the forked portion 232 is elastically deformed by pulling up the side arm 230, and the engagement between the spherical engagement portion 226b and the circular space portion 232a is released. The side arm 230 can be taken out of the side cap 223 by further pulling up the side arm 230.

[0094] In this embodiment, the spherical engagement portion 226b is provided on the side cap 223, and the bifurcated portion 232 is provided on the side arm 230, but the spherical engagement portion 226b may be provided on the side arm 230, and the bifurcated portion 232 may be provided on the side cap 223. Furthermore, the shapes of the bifurcated portion 232 and the spherical engagement portion 226b can be designed arbitrarily as long as they can engage with each other.

[0095] (Effects of the second embodiment) As described above, according to this embodiment, the spherical engagement portion 226b of the side cap 223 can be engaged simply by pushing the bifurcated portion 232 of the side arm 230 into it, and the engagement can be released simply by pulling up, making the operations of engaging and releasing the engagement between the side cap 223 and the side arm 230 easier.

[0096] (Third embodiment) The configuration of a screen unit 300 according to a third embodiment will be described with reference to FIG. 22. FIG. 22 is a diagram showing the screen unit 300 of the third embodiment. The screen unit 300 of this embodiment differs from the screen unit 100 of the first embodiment mainly in the configuration for positioning the side caps 323 and the guide caps 342, the configuration of the top rail 340, the configuration of the side arm storage section 321, and the like. The other configurations of the screen unit 300 can be the same as those of the first embodiment. In this embodiment, the configurations different from those of the first embodiment will be mainly described.

[0097] 22(a), instead of the positioning recess 124a of the first embodiment, a positioning protrusion 324a is formed on the side cap 323. The positioning protrusion 324a protrudes upward from the upper end of the end of the holding part 324 on the case 120 side.

[0098] As shown in FIG. 22(a), the guide cap 342 is formed with a positioning recess 344 recessed toward the top rail 340 from the side arm insertion port 346. As shown in FIG. 22(b), the positioning recess 344 is capable of accommodating the positioning protrusion 324a. As shown in FIG. 22(c), the positioning recess 344 is open downward, and when the guide cap 342 is held by the side cap 323, the positioning protrusion 324a is inserted from below. Thus, the top rail 340 is positioned in the left-right direction.

[0099] The left and right side caps 323 are different from the side caps 123 of the first embodiment in that one storage section inlet 327 is provided at each of the left and right side caps 323 at positions opposite to each other in the front-rear direction, as shown in FIG. 22. With this configuration, the two side arms 130 are inserted from the left and right opposite directions. In this embodiment, the configuration of the storage section inlet 327 may be the same as that of the first embodiment, or may be different. Also, a storage holding section similar to the storage holding section 127a of the first embodiment may be provided. Furthermore, the side arm storage section 121 provided in the case 120 may be the same as that of the first embodiment, or may be different.

[0100] 22(a), a recess 349 is formed in the top rail 340 over the entire longitudinal direction. The recess 349 is disposed in an easy-to-grasp position in the up-down direction of the top rail 340. With this configuration, fingers can be caught in the recess 349 when the top rail 340 is raised or lowered, improving the sense of grip.

[0101] (Effects of the third embodiment) As described above, according to this embodiment, when the top rail 340 is accommodated in the top rail accommodating recess 122 of the case 120, the positioning protrusion 324a of the side cap 323 is inserted into the positioning recess 344 of the guide cap 342, thereby restricting the left-right movement of the top rail 340 and positioning it.

[0102] Furthermore, since it is sufficient to provide one storage section entrance 327 in side cap 323, the structure of side cap 323 is simplified, and productivity is improved.

[0103] Furthermore, since the recess 349 is formed in the top rail 340, when the top rail 340 is raised or lowered, the finger can be caught in the recess 349, improving the sense of grip.

[0104] (Fourth embodiment) The configuration of a screen unit 400 according to a fourth embodiment will be described with reference to FIG. 23. FIG. 23 is a perspective view showing the screen unit 400 of this embodiment, where (a) shows a state in which the top rail 140 is slid upward along the side arm 430, and (b) shows a state in which the top rail 140 is engaged halfway along the side arm 430. The screen unit 400 of this embodiment differs from the screen unit 100 of the first embodiment in that an intermediate engagement portion 436 is provided on the side arm 430. The other configurations of the screen unit 400 can be the same as those of the first embodiment. In this embodiment, the configurations different from those of the first embodiment will be mainly described.

[0105] 23(a), the side arm 430 is provided with three intermediate locking portions 436 below the upper locking portion 433. The three intermediate locking portions 436 are provided at three locations equidistantly spaced apart in the vertical direction of the side arm 430. The upper locking portion 433 and the intermediate locking portion 436 have the same configuration as the upper locking portion 133 of the first embodiment, and therefore a description thereof will be omitted here.

[0106] The configuration of the screen unit 400 of this embodiment has been described above. The operation of the screen unit 400 will be described below. The top rail 140 is raised along the side arm 430 as shown by the arrow k in FIG. 23(a). The top rail 140 passes through the intermediate locking portion 436 while being raised. When the raising of the top rail 140 is stopped, it is locked by the intermediate locking portion 436 directly below as shown in FIG. 23(b). Therefore, the top rail 140 can be stopped at the intermediate position. In this manner, the height of the screen 110 can be adjusted.

[0107] (Effects of the fourth embodiment) As described above, according to this embodiment, the side arm 430 is provided with the intermediate locking portion 436, so that the top rail 140 can be stopped at the intermediate position. Therefore, the height of the screen 110 can be adjusted.

[0108] Fifth embodiment The configuration of a screen unit 500 according to a fifth embodiment will be described with reference to FIG. 24. FIG. 24 shows the screen unit 500 of this embodiment, where (a) is a perspective view showing a state in which a joint 570 is removed, (b) is a plan view showing a state in which two screen units 500 are connected by the joint 570, and (c) is a plan view showing a state in which three screen units 500 are connected by the joint 570. The screen unit 500 of this embodiment differs from the screen unit 100 of the first embodiment in that a joint 570 is provided to fix the screen units 500 to each other. The other configurations of the screen unit 500 can be the same as those of the first embodiment. In this embodiment, the configurations different from those of the first embodiment will be mainly described.

[0109] The joint 570 is used when fixing the connection of two screen devices 500. As shown in Fig. 24(a), the joint 570 has a generally U-shape with one end of two pieces 572 connected to each other. A connection hole 523f into which one piece 572 of the joint 570 can be inserted is formed on the upper surface of the portion where the inclined end surface 523b of the side cap 523 is formed.

[0110] The configuration of the screen unit 500 of this embodiment has been described above. The operation of the screen unit 500 will be described below. When the screen units 500 are connected in a straight line as shown in FIG. 24(b), the vertical end faces 523a are brought into contact with each other and the two connection holes 523f are connected by the joint 570. When connected by the joint 570, the screen unit 500 arranged in a straight line is stabilized. Therefore, the stand 150 on the unconnected side is used and the stand 150 on the connected side is stable even if it is stored. This makes it possible to secure space on a desk or table.

[0111] 24(c), when three screen devices 500 are connected in a T-shape, the inclined end faces 523b of adjacent screen devices 500 are abutted against each other, and the connecting holes 523f provided on the upper surfaces of the abutting inclined end faces 523b are connected by joints 570. When connected by joints 570, the screen devices 500 arranged in a T-shape are stable, so that they are stable even when stored without using the stand 150. This makes it possible to secure space on a desk or table.

[0112] (Effects of the Fifth Embodiment) As described above, according to this embodiment, when a plurality of screen units 500 are connected for use by connecting them with the joints 570, the stands 150 are stable even when part or all of them are not used and are stored, making it possible to secure space on a desk or table.

[0113] Although the preferred embodiment of the present invention has been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such an example. It is clear that a person skilled in the art can think of various modified or altered examples within the scope of the claims, and it is understood that such examples also naturally belong to the technical scope of the present invention.

[0114] For example, in the above-mentioned first embodiment, the portable long box case 120 has been described as an example of the base part, but the present invention is not limited to this example. For example, the base part may be fixed to the top plate of a desk or table in advance, may be fixed in a state embedded in the top plate, may be embedded removably, or may be integrated with the desk or table.

[0115] In the first embodiment, the case 120 is provided with the side arm storage section 121 into which the side arm 130 can be inserted and stored, but the present invention is not limited to this example. Any design is possible as long as the side arm can be stored in the base section. For example, instead of inserting the side arm, the base section may be opened to allow the side arm to be inserted and removed. Also, instead of providing a special space for storing the support member, the support member may be stored in an open area of ​​the base section.

[0116] In the first embodiment, the side arms 130 are provided opposite each other to support both the left and right ends of the screen 110, and the side arm storage sections 121 are provided on the front and rear sides of the case 120, and are capable of storing the pair of side arms 130, respectively, but the present invention is not limited to this example. Any design can be used as long as the base section can store the support members. For example, the pair of support members may be stored on either the front side or the rear side of the base section.

[0117] In the first embodiment, the top rail 140 is connected to the upper end of the screen 110, and the side arm 130 is configured to insert the top rail 140 and slidably support the top rail 140, but the present invention is not limited to this example. The upper support member can be designed arbitrarily as long as it can connect the upper end of the screen to the support member. For example, the upper support member may be configured to be connected only to the corners of the screen, rather than to be connected to the entire upper end of the screen.

[0118] In the first embodiment, the case 120 is formed with a holding portion 124 capable of holding the lower end of the side arm 130, a side arm insertion port 146 through which the side arm 130 can be inserted is formed near the end of the top rail 140, and the side arm 130 is held by the holding portion 124 via the side arm insertion port 146, but the present invention is not limited to this example. The base portion can be designed arbitrarily as long as the support member can be erected in a detachable manner. For example, the base portion may be configured to hold a portion of the support member other than the lower end.

[0119] In the first embodiment, the positioning recess 124a and the positioning protrusion 144 for determining the positions of the side cap 123 and the top rail 140 are formed on both the side arm 130 and the case 120 so that the positions of the side arm insertion opening 146 and the holding portion 124 coincide with each other, but the present invention is not limited to this example. They may be provided on either the support member or the base portion. For example, the left and right ends of the support member may be surrounded by the base portion.

[0120] In the first embodiment, the holding portion 124 is configured to have the lower engaging portion 126 that can engage and disengage with the lower end of the side arm 130, but the present invention is not limited to this example. Any design is possible as long as the support member can be erected on the base portion in a detachable manner.

[0121] In the first embodiment, when the screen 110 is stored in the case 120, the top rail 140 protrudes from the top of the case 120, the bottom of the case 120 is provided with a lower recess 123e, and the top rail 140 protruding from the top of the lower case 120 is stored in the lower recess 123e of the upper case 120, so that multiple cases 120 can be stacked vertically, but the present invention is not limited to this example. Any design can be used as long as multiple base parts can be stably stacked. [Explanation of symbols]

[0122] 100, 200, 300, 400, 500 screen devices 110 Screen 120 Case (base part) 121 Side arm storage compartment 122 Top rail storage recess 123, 223, 323 Side Cap 123a, 523a Vertical end face 123b, 523b Slanted end face 123c Stairs 123d, 223d bottom protrusion 123e Lower recess (recess) 124, 324 Holding part 124a Positioning recess 125, 325 Lower release part 126, 226, 326 Lower engagement part 127, 327 Storage area entrance 127a Storage and holding section 128 Rotating support shaft 129 Stopper 130, 230, 430 Side arm (support member) 131 Regulatory Department 132 Swing piece 133, 433 Upper stop 134 Upper release part 135 Hook section 140, 240, 340 Top rail (upper support member) 142, 342 Guide cap 144 Positioning protrusion 146, 346 Side arm insertion port 148 Receiving 150 Stand (leg parts) 154 Ratchet 160 Winding pipe 232 Fork 324a Positioning protrusion 344 Positioning recess 436 Intermediate locking part 523f connection hole 570 Joint

Claims

1. A screen and A base portion capable of storing the screen so as to be pulled out and retracted; a support member capable of tensioning the screen pulled out from the base portion above the base portion, The base portion has a storage portion into which the support member can be inserted and stored so as to be freely removed and stored, and a holding portion in which the support member can be erected, The screen device, wherein the support member removed from the storage section is detachably attached to the holding section.

2. The support members are provided opposite each other so as to support both left and right ends of the screen, The screen unit according to claim 1 , wherein the storage sections are provided on the front side and the rear side of the base section, and are capable of storing the pair of support members, respectively.

3. 3. The screen unit according to claim 1, wherein the storage section is formed with a storage holding section for holding the stored support member.

4. An upper support member is connected to the upper end of the screen, 4. The screen unit according to claim 1, wherein the upper support member is inserted through the support column member and supports the upper support member in a slidable manner.

5. A screen and an upper support member connected to an upper end of the screen; A base portion capable of storing the screen in a manner that allows the screen to be pulled out and retracted; a support member through which the upper support member is inserted and slidably supported, thereby enabling the screen to be stretched above the base portion; The base portion is capable of detachably supporting the support member, An insertion opening through which the support member can be inserted is formed near an end of the upper support member, the base portion has a holding portion capable of holding a lower end portion of the support member in an upright position, and is configured to restrict movement of the upper support member in a front-rear direction, The support member is held by the holding portion through the insertion opening in a state in which the base portion restricts forward and backward movement of the upper support member.

6. A screen device as described in Claim 5, characterized in that the base portion has a storage portion into which the support member can be inserted and stored.

7. 7. The screen device according to claim 5, wherein at least one of the upper support member and the base portion is formed with a positioning portion that determines the positions of the base portion and the upper support member so that the positions of the insertion opening and the holding portion are aligned.

8. The screen unit according to claim 7, wherein the holding portion is formed with a pole member engaging portion capable of engaging and disengaging with a lower end portion of the pole member.

9. When the screen is stored in the base portion, the upper support member protrudes from an upper portion of the base portion, A recess is provided in the bottom of the base portion, The screen device according to any one of claims 5 to 8, characterized in that the upper support member protruding from an upper portion of the base portion arranged below is stored in the recess of the base portion arranged above, thereby making it possible to stack a plurality of the base portions vertically.

Images