Screen device

Abstract

To provide a screen device of which screen can be easily developed.SOLUTION: A screen device 100 includes: a screen 110; a top rail 140 connected to the upper end part of the screen 110; a case 120 for storing the screen 110 in such a manner that the screen can be drawn out or drawn in; and a side arm 130 capable of extending the screen 110 to above the case 120 by supporting the top rail 140 slidably. That structure can realize a screen device of which screen can be easily developed.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a screening device.

Background Art

[0002] As a conventional screening device, there is one disclosed in Japanese Patent Application Laid-Open No. 11-002870 (Patent Document 1). In the screening device disclosed in this document, a screen winding storage section for winding and storing a screen is provided inside a case. When the screen is pulled out upward, the screen support is lifted from the case and attached to the left and right of the screen. When the screen is stored, the screen support is rotated and immersed in the case. In this way, the screen can be easily pulled out when using the screening device, and the screen can be easily stored when not in use.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in a conventional screening device as disclosed in Patent Document 1, since the both ends (screen locking portions) of the reinforcing bar provided at the upper end of the pulled-out screen are placed on the reverse U-shaped receiving portion provided at the tip of the screen support, when holding the screen in the deployed state, it is necessary to perform the work while aligning the both ends of the reinforcing bar and the receiving portion, and there is a problem that the screen deployment operation becomes complicated.

[0005] Therefore, the present invention has been made in view of such problems, and an object thereof is to provide a screening device with an easy screen deployment operation.

Means for Solving the Problems

[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, an upper support member connected to an upper end portion of the screen, a base portion capable of storing the screen so as to be pullable out and pulled back, and a support column member capable of stretching the screen above the base portion by slidably supporting the upper support member.

[0007] According to such a configuration, the upper support member can stretch the screen with an easy operation of simply sliding the support column member. Therefore, a screen device with an easy screen deployment operation can be provided.

[0008] The present invention can be applied in various ways. For example, the upper support member may have receiving portions at both left and right end portions that can engage with an upper end portion of the support column member, and may be pulled up to the upper end portion of the support column member with the support column member inserted through the receiving portions so as to engage with the upper end portion of the support column member. According to such a configuration, since the support column members are inserted through both ends of the upper support member before pulling up the screen, the operation of aligning both ends of the upper support member with the support column members after pulling up the screen becomes unnecessary, and the workability in assembly can be improved.

[0009] Further, 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 portion of the screen, a base portion capable of storing the screen so as to be pullable out and pulled back, and a support column member capable of stretching the screen above the base portion by being engaged and connected with a receiving portion provided on the upper support member.

[0010] According to such a configuration, the upper support member can stretch the screen with an easy operation of simply sliding the support column member. Therefore, a screen device with an easy screen deployment operation can be provided.

[0011] Further, an upper locking portion capable of locking and unlocking with the receiving portion may be formed at the upper end portion of the column member. According to such a configuration, since both ends of the upper support member can be engaged with and disengaged from the column member, the workability in assembly can be improved.

[0012] Further, when the upward movement of the upper support member is restricted by the restricting portion, the receiving portion and the upper locking portion may be locked. According to such a configuration, if the upper support member is raised until it abuts against the restricting portion, the upper support member and the column member will engage, thus improving the operability.

[0013] Further, a restricting portion for restricting the upward movement of the upper support member may be formed at the upper end portion of the column member. According to such a configuration, the restricting portion can prevent the upper support member from falling off the upper end of the column member.

[0014] Further, an intermediate locking portion capable of locking and unlocking with the receiving portion may be formed at an intermediate height of the column member. According to such a configuration, by providing the intermediate locking portion on the column member, the upper support member can be stopped at an intermediate position. Therefore, the height of the screen can be adjusted.

Advantages of the Invention

[0015] According to the present invention, a screen device with an easy screen deployment operation can be provided. Other effects of the present invention will also be described in the embodiments for carrying out the invention described later.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Figure 18

Figure 19

Figure 20

Figure 21

Figure 22

Figure 23

Figure 24

Embodiments for Carrying Out the Invention

[0017] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present specification and drawings, components having substantially the same functional configuration are denoted by the same reference numerals, and redundant description is omitted.

[0018] (First Embodiment) The overall configuration of the screen device 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 device 100 of this embodiment. FIG. 2 is a plan view of the screen device 100 in the stored state. FIG. 3 is a perspective view of the screen device 100 in the stored state. As shown in FIG. 1, the screen device 100 includes a screen 110, a case (base portion) 120 capable of storing the screen 110 in a pull-out and pull-back manner, a side arm (support column member) 130 capable of stretching the screen 110 pulled out from the case 120 above the case 120, a top rail (upper support member) 140 connected to the upper end portion of the screen 110 and slidably supported by the side arm 130, and a stand (leg member) 150 rotatably provided on the lower surfaces of the left and right end portions of the case 120. And the case 120 is configured to be able to detachably stand the side arm 130 and to be storable. Hereinafter, each component of the screen device 100 will be described.

[0019] (Screen 110) The screen 110 is for shielding the opening. As shown in FIG. 1, the lower end of the screen 110 is connected to a winding pipe 160 provided in the case 120 so as to be wound and unwound, and can be stored in the case 120 in a pull-out and pull-back manner. The screen 110 can be stretched above the case 120 by the side arm 130. A top rail 140 is connected to the upper end portion of the screen 110.

[0020] (Case 120) The case 120 can accommodate the screen 110 in a retractable and retrievable manner. As shown in FIG. 1, the case 120 is configured in a long shape with a width capable of accommodating the screen 110. The case 120 mainly houses a winding pipe 160 to which the screen 110 is connected so as to be wound and unwound, and a side arm 130 capable of stretching the screen 110. The configuration of the case 120 will be described in detail with reference to FIGS. 4 to 7 as well. FIG. 4 is a view showing one end side of the screen device 100 in the stored state. FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4. FIG. 6 is a side view of the screen device 100 in the stored state. FIG. 7 is a cross-sectional view showing the vicinity of the end of the screen device 100.

[0021] As shown in FIGS. 2 and 5, the case 120 is provided with side arm storage portions 121 capable of inserting and storing a pair of side arms 130 at symmetric positions in the front-rear direction with the winding pipe 160 interposed therebetween. Further, since the side arm storage portions 121 are provided below the front side and the rear side of the case 120 as shown in FIG. 5, sufficient space can be secured in the case 120 to increase the winding diameter of the winding pipe 160. Further, the case 120 is formed with a top rail storage recess 122 capable of accommodating the top rail 140. The top rail storage recess 122 regulates the movement in the front-rear direction by accommodating the top rail 140.

[0022] As shown in FIGS. 2 and 3, side caps 123 are provided at both ends of the case 120. In this embodiment, the case 120 and the side caps 123 are separate bodies, but an integral configuration may also be used. The side cap 123 is hollow and substantially trapezoidal in plan view. That is, the side cap 123 includes a vertical end face 123a formed substantially perpendicular to the left-right direction of the case 120, and two inclined end faces 123b symmetrically formed at approximately 45 degrees in the front-rear direction of the case 120 from both ends of the vertical end face 123a. The side cap 123 is substantially H-shaped in side view as shown in FIG. 6.

[0023] In this embodiment, the angle of the inclined end face 123b is approximately 45 degrees. However, as long as it is less than 90 degrees with respect to the vertical end face 123a, it can be arbitrarily designed. When a plurality of screen devices 100 are connected according to the angle of the inclined end face 123b, the angle of the screen 110 is changed.

[0024] The position of the end of the screen 110 is affected by the length of the winding pipe 160. However, the winding pipe 160 cannot be extended to the location where it contacts the inclined end face 123b of the side cap 123. In this regard, since the side cap 123 is substantially trapezoidal in plan view, the length of the inclined end face 123b in the left-right direction is short. Therefore, even in the case of the screen device 100 having the inclined end face 123b, the winding pipe 160 can be arranged up to the vicinity of the end of the screen device 100. Thus, the screen 110 is arranged up to the vicinity of the end of the screen device 100.

[0025] The substantially H-shaped upper recessed portion of the side cap 123 constitutes a holding portion 124 that can hold the lower end of the side arm 130 inserted into the side cap 123, as shown in FIG. 6. As shown in FIG. 7(a), an opening communicating with the side arm insertion port 146 of the guide cap 142 is formed in the holding portion 124, and the side arm 130 passes through the holding portion 124 together with the side arm insertion port 146. Further, the guide caps 142 provided at both ends of the top rail 140 are accommodated in the holding portion 124. The holding portion 124 restricts the movement of the top rail 140 in the front-rear direction.

[0026] As shown in FIG. 7(a), a positioning recess 124a is formed in the holding portion 124 of the side cap 123 in a front view. The positioning convex portion 144 of the guide cap 142 fits into the positioning recess 124a, restricting the movement of the top rail 140 in the left-right (longitudinal) direction. Therefore, the top rail 140 is positioned by the holding portion 124 and the positioning recess 124a of the side cap 123.

[0027] As shown in Fig. 7(a), on the lower part of the surface of the holding part 124 that abuts against the case 120 of the side cap 123, a stepped part 123c that protrudes stepwise in a direction away from the case 120 is formed. The stepped part 123c is elastically deformable in the left - right direction of the case 120. The lower end of the stepped part 123c serves as a lower release part 125 for releasing the engagement between the lower end of the side arm 130 and the side cap 123. On the stepped part 123c, a lower engaging part 126 for engaging with the side arm 130 is formed above the lower release part 125.

[0028] As shown in Fig. 6, on the inclined end faces 123b on both sides of the side cap 123, a storage part entrance 127 for inserting the side arm 130 into the side arm storage part 121 is formed. The storage part entrance 127 communicates with the side arm storage part 121 as shown in Fig. 7(b). At the connecting part between the storage part entrance 127 and the side arm storage part 121, a storage holding part 127a is provided to hold the side arm 130 stored in the side arm storage part 121 so that it does not come out. The storage part entrance 127 is formed on both of the side caps 123 provided at both ends of the case 120, but it may be formed on only one of the side caps 123.

[0029] As shown in Fig. 7(b), the upper locking part 133 of the side arm 130 stored in the side arm storage part 121 abuts against and is held by the storage holding part 127a. When taking out the side arm 130 from the side arm storage part 121, put a finger into the storage part entrance 127 and press and swing the swing piece 132. Then, the upper locking part 133 separates from the storage holding part 127a and the side arm 130 can be taken out.

[0030] Furthermore, as shown in FIG. 4, the side cap 123 is formed with a bottom protrusion 123d extending in the direction of the bottom of the case 120. As shown in FIG. 5, a rotation support shaft 128 for rotatably supporting the stand 150 protrudes downward from the bottom protrusion 123d. Further, as shown in FIG. 4(b), a stopper 129 that engages with a ratchet 154 of the stand 150, which will be described in detail later, is formed on the bottom surface of the bottom protrusion 123d.

[0031] As shown in FIG. 1, a winding pipe 160 is disposed within the case 120 over the entire length in the longitudinal direction. As shown in FIG. 5, the winding pipe 160 is disposed at the center in the width direction of the case 120, and the lower end of the screen 110 is connected so as to be wound and unwound. As shown in FIG. 5, both ends of the winding pipe 160 are rotatably supported by a set frame 162 fixed to the bottom of the case 120 and side plates 164 provided on the set frame 162 as shown in FIG. 7. In the present embodiment, side plates 164 are provided at both ends of the set frame 162 fixed to the bottom of the case 120, but the side plates 164 may be directly fixed to the bottom of the case 120, or the side caps 123 may be given the function of side plates to rotatably support both ends of the winding pipe 160 by the side caps 123.

[0032] (Side arm 130) The side arm 130 is for stretching the screen 110 drawn out from the case 120 above the case 120. As shown in FIG. 1, the side arm 130 can be detachably erected on the side caps 123 provided at both ends of the case 120. A pair of side arms 130 erected on the side caps 123 support the left and right ends of the screen 110.

[0033] The configuration of the side arm 130 will be described with reference to FIG. 8. FIG. 8 is a diagram showing 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 an elongated rectangular prism shape, and a restricting portion 131 is provided at the upper end. The shape of the side arm 130 may be an elongated cylindrical shape, an elliptical cylindrical shape, a hexagonal prism shape, or the like. The outer periphery of the restricting portion 131 is formed larger than the side arm insertion port 146 of the top rail 140, and restricts the upward movement of the top rail 140. Thus, the top rail 140 is prevented from falling off the side arm 130.

[0034] Further, a swing piece 132 that elastically deforms so as to swing in the left-right direction of the case 120 is formed on the side arm 130. An upper locking portion 133 is formed at a position in the middle of the length direction of the swing piece 132, and an upper releasing portion 134 is formed at the tip of the swing piece 132. The upper locking portion 133 can be locked to and unlocked from the receiving portion 148 of the guide cap 142.

[0035] The locking of the upper locking portion 133 and the receiving portion 148 is performed by the receiving portion 148 rising over the upper locking portion 133. That is, when the upward movement of the top rail 140 is restricted by the restricting portion 131, the receiving portion 148 and the upper locking portion 133 are locked. Also, the unlocking of the upper locking portion 133 and the receiving portion 148 is performed by operating the upper releasing portion 134 to swing the swing piece 132 and separating the upper locking portion 133 from the receiving portion 148.

[0036] As shown in FIG. 8, a stepped 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 is engaged with the lower engaging portion 126 of the side cap 123 to restrict the upward movement of the side arm 130.

[0037] (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 is a long rectangular shape, and guide caps 142 are provided at both longitudinal ends. The top rail 140 is housed in the top rail housing recess 122 of the case 120 so that the upper part protrudes from the case 120. Further, the guide cap 142 is located on the side cap 123. As shown in FIG. 7, a positioning convex portion 144 is formed at the bottom of the guide cap 142 and fits into the positioning concave portion 124a of the side cap 123. Therefore, the guide cap 142 is restricted from moving in the left-right direction of the side cap 123.

[0038] As shown in FIG. 3, the guide cap 142 is hollow, and a side arm insertion port 146 into which the side arm 130 can be inserted is formed at the upper part. The side arm insertion port 146 is formed in a rectangular shape having the same shape as the outer periphery of the side arm 130, and when the side arm 130 is inserted, the size is such that almost no gap is generated with the side arm 130. Therefore, it is possible to prevent the side arm 130 from wobbling. A receiving portion 148 for locking the upper locking portion 133 of the side arm 130 is formed at the end of the guide cap 142.

[0039] In this embodiment, the upper part of the top rail 140 protrudes from the case 120, but it can be configured not to protrude. In this case, for example, it is easy to operate if a handle is provided on the upper surface of the top rail. If the handle is buried in the top rail when not in use and pulled up from the top rail when in use, the design will be improved.

[0040] (Stand 150) The stand 150 is for installing the case 120 on a tabletop or the like. As shown in FIGS. 1 and 4, the stand 150 is rotatably provided at the front side and the rear side of the lower surfaces of the left and right end portions of the case 120, respectively. One end of the stand 150 is disposed below the bottom protrusion 123d of the side cap 123, and the other end is inclined downward so as to gradually separate from the bottom of the case 120. With such a configuration, it is possible to easily rotate the stand 150 by inserting a hand into the gap between the bottom of the case 120 and the stand 150.

[0041] As shown in FIG. 5, a fitting hole 152 that is rotatably fitted to the rotation support shaft 128 of the side cap 123 is formed at one end of the stand 150. As shown in FIG. 4(b), a ratchet 154 is formed on the outer periphery of the fitting hole 152. The ratchet 154 is formed at 45-degree intervals over a semi-circle. The ratchet 154 is a holding mechanism that can hold the stand 150 at substantially the same angle with respect to the vertical end face 123a and the inclined end face 123b.

[0042] Therefore, the ratchet 154 engages with and is held by the stopper 129 when the stand 150 rotates to a position where it is arranged along the left-right direction of the case 120, a position at approximately 45 degrees with respect to the vertical end face 123a that is substantially the same angle as the inclined end face 123b of the side cap 123, and a position that is substantially perpendicular to the left-right direction of the case 120 and is substantially the same angle as the vertical end face 123a. The operation of the stand 150 will be described later.

[0043] The configuration of each part of the screen device 100 has been described above. Hereinafter, the operation of the screen device 100 will be described. 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 of a state where the stand 150 is expanded and the side arm 130 is pulled out.

[0044] As shown in FIG. 9, when the side arm 130 is retracted, the side arm 130 is pulled in the direction of arrow a with the restricting portion 131 while pressing the upper releasing portion 134 disposed at the storage portion entrance 127 to separate the upper locking portion 133 from the storage holding portion 127a. Then, the side arm 130 is pulled out from the side arm storage portion 121 of the case 120.

[0045] When storing the side arm 130 in the side arm storage portion 121, the hook portion 135 is inserted into the side arm storage portion 121 from the storage portion entrance 127. Then, by pushing it in until the restricting portion 131 abuts against the entrance of the side arm storage portion 121, the side arm 130 is stored in the side arm storage portion 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 off from the side arm storage portion 121. The side arm 130 can be inserted into the side arm storage portion 121 from any one of the four storage portion entrances 127 (front and rear, left and right) formed in the side caps 123 at both ends of the case 120.

[0046] Hereinafter, the procedure for attaching and detaching the side arm 130 to and from the side cap 123 will be described with reference to FIGS. 10 and 11. FIG. 10 is a perspective view showing the procedure for supporting the side arm 130 on the side cap 123. FIG. 11 is a cross-sectional view showing the procedure for removing the side arm 130 from the side cap 123.

[0047] 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 housed in the top rail housing recess 122 of the case 120. The hook portion 135 of the side arm 130 is placed downward and 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, as shown in Fig. 10(b), the hook portion 135 gets over the lower engaging portion 126 and is engaged from below. Note that a rib may be formed on one side of the hook portion 135, and a groove portion conforming to the shape of the rib may be formed in the side arm insertion port 146. In this case, since the hook portion 135 cannot be inserted into the side arm insertion port 146 unless the rib and the groove portion match, the side arm 130 can be installed without misaligning the insertion direction into the side cap 123.

[0048] Therefore, the upward movement of the side arm 130 is restricted. Also, the downward movement of the side arm 130 is restricted when the stepped portion 136 of the side arm 130 abuts against the upper end of the stepped portion 123c of the side cap 123. Further, the outer periphery of the side arm 130 is held by the holding portion 124, suppressing the rattling in the front-rear, left-right directions. In this way, the side arm 130 is erected at the left and right ends of the case 120.

[0049] Above, the procedure for supporting the side arm 130 on the side cap 123 has been described. Next, the procedure for removing the side arm 130 from the side cap 123 will be described. As shown in Fig. 11(a), when the hook portion 135 engaged with the lower engaging portion 126 is pressed in the left-right direction of the case 120 as shown by the arrow c against the lower releasing portion 125, as shown in Fig. 11(b), the stepped portion 123c elastically deforms in the direction of the case 120. Therefore, since the lower engaging portion 126 and the hook portion 135 are separated, the side arm 130 can be lifted as shown by the arrow d and removed from the side cap 123.

[0050] Next, the procedure for locking and unlocking the top rail 140 to and from 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 deployment position. FIG. 13 is a front view showing the procedure for unlocking the locking between the top rail 140 and the side arm 130. FIG. 14 is a cross-sectional view showing the procedure for unlocking the locking between the top rail 140 and the side arm 130.

[0051] First, the procedure for stopping the top rail 140 at the deployment 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 overrides 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.

[0052] Next, the procedure for unlocking the locking between the receiving portion 148 and the upper locking portion 133 will be described with reference to FIGS. 13 and 14. When the top rail 140 is held at the upper end position of the side arm 130, as shown in FIGS. 13(a) and 14(a), the lower end of the receiving portion 148 is locked to the upper locking portion 133. Also, since there is a slight gap formed at the upper end of the receiving portion 148 where the restricting portion 131 is disposed, the upward movement of the receiving portion 148 is restricted by the restricting portion 131.

[0053] 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 pushed, the swinging piece 132 swings and the upper locking portion 133 separates from the receiving portion 148. Thus, the movement of the guide cap 142 becomes free, and as shown by the arrow g in FIG. 13(b) and the arrow g in FIG. 14(b), the top rail 140 can be slid downward along the side arm 130.

[0054] The above describes the procedure for locking and unlocking the top rail 140 to and from the side arm 130. Hereinafter, the operation of the stand 150 will be described 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.

[0055] As shown in FIG. 15(a), the stand 150 can be rotated approximately 90 degrees from a state of being stored below the case 120 along the left-right direction of the case 120 to a position approximately the same as the vertical end face 123a that is substantially orthogonal to the left-right direction of the case 120, and at these positions, the ratchet 154 and the stopper 129 are engaged and held. Also, as shown in FIG. 15(b), the stand 150 can also be engaged and held by the ratchet 154 and the stopper 129 at a position approximately 45 degrees with respect to the vertical end face 123a, which is at approximately the same angle as the inclined end face 123b of the side cap 123.

[0056] In the stored state, as shown in FIG. 16(a), the stand 150 is stored below the case 120. Then, depending on the usage state of the screen device 100, the stand 150 can be selectively used in a state opened approximately 45 degrees as shown in FIG. 16(b) and a state opened approximately 90 degrees as shown in FIG. 16(c). The specific state of the stand 150 depending on the usage state of the screen device 100 will be described later.

[0057] The above describes the operation of the stand 150. Hereinafter, the procedure for switching the screen device 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 stretching the screen 110 above the case 120.

[0058] As shown in Fig. 17(a), in the stored state, the side arm 130 of the screen device 100 is stored in the side arm storage portion 121 of the case 120, and the top rail 140 is stored in the top rail storage recess 122 of the case 120. The stand 150 is also stored below the case 120.

[0059] To put the screen device 100 into the use state, take out the two side arms 130 from the side arm storage portion 121, and as shown in Fig. 17(b), insert them through the side arm insertion openings 146 of the guide caps 142 of the top rail 140 and stand them up on the side caps 123 at the left and right ends of the case 120 respectively. The side arms 130 are held by the holding portion 124 and the upward movement is restricted by the lower engaging portion 126. Also, pull out the stand 150 from the case 120. When using the screen device 100 alone, it can be stably installed by rotating it to an angle of about 90 degrees with respect to the screen 110.

[0060] After standing the side arms 130 on the side caps 123 in this way, as shown by the arrow h in Fig. 18(a), raise the top rail 140 along the side arms 130. As the top rail 140 rises, the screen 110 is unwound from the winding pipe 160 and deployed.

[0061] 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 the deployed state. In this way, the screen device 100 is in the use state.

[0062] The procedure for switching the screen device 100 from the stored state to the used state has been described above. Hereinafter, a usage example of arranging a plurality of screen devices 100 will be described with reference to FIG. 19. FIG. 19 is a plan view showing a plurality of screen devices 100 arranged, where (a) shows a state of being arranged linearly, and (b) shows a state of being arranged in a cross shape.

[0063] When arranging a plurality of screen devices 100 linearly, as shown in FIG. 19(a), the vertical end faces 123a of adjacent cases 120 are brought into surface contact with each other. Here, surface contact means a state where the vertical end faces 123a are in contact with each other, but it may also be a facing proximity state where the surfaces of each other are close to each other. In this way, just by bringing the vertical end faces 123a into surface contact with each other, they can be automatically arranged linearly. When arranging the screen device 100 linearly, when all the stands 150 are rotated up to approximately 90 degrees, the stability of the screen device 100 is enhanced. In this embodiment, an example using two screen devices 100 has been described, but the same installation can be performed when using three or more screen devices 100.

[0064] When arranging a plurality of screen devices 100 at right angles, as shown in FIG. 19(b), the inclined end faces 123b of adjacent cases 120 are brought into surface contact with each other. In this way, just by bringing the inclined end faces 123b of adjacent cases 120 into surface contact with each other, they can be automatically arranged at right angles. When arranging the screen device 100 at right angles, when the stand 150 is rotated up to approximately 45 degrees, which is the same as the inclined end face 123b, the stands 150 of adjacent screen devices 100 are arranged substantially parallel to each other, so there is no interference.

[0065] When using four screen devices 100 and arranging them with the inclined end faces 123b of each screen device 100 in contact with each other, they can be installed in a cross shape. In this embodiment, an example using four screen devices 100 has been described, but two screen devices 100 can be installed in an L shape, or three screen devices 100 can be installed in a T shape.

[0066] The above described an example of using multiple screen devices 100. Next, a method of stacking multiple screen devices 100 will be described with reference to FIG. 20. FIG. 20 is a diagram showing a state of stacking multiple screen devices 100. (a) is a side view showing a state immediately before stacking two screen devices 100, (b) is a side view showing a state where two screen devices 100 are stacked, and (c) is a perspective view showing a state where two screen devices 100 are stacked.

[0067] When stacking multiple screen devices 100, as shown in FIG. 20(a), two screen devices 100 are arranged vertically, and the upper screen device 100 is lowered as indicated by arrow i. Then, as shown in FIG. 20(b), the upper and lower screen devices 100 are stacked such that the substantially H-shaped lower recess (concave portion) 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 disposed 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).

[0068] (Effect of the First Embodiment) As described above, according to this embodiment, a screen device 100 that enables an easy screen deployment operation can be realized.

[0069] In addition, since it can be stored in the case 120 without adopting a complicated structure in which the side arm 130 is folded or telescoped and stored, a simple device structure can be achieved. Further, since the side arm 130 is inserted and stored, it can be easily taken out when in use.

[0070] Also, since the structure is such that a pair of side arms 130 can be stored on the front side and the rear side of the case 120, the shape of the case 120 that also serves as the base of the screen 110 can be formed without being biased to one side in the front-rear direction.

[0071] Also, it can be held so that the stored side arm 130 does not accidentally fall off.

[0072] Also, it can be erected on the case 120 simply by inserting the pair of side arms 130 into the top rail 140.

[0073] Also, by communicating the holding portion 124 that holds the lower end of the side arm 130 with the 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.

[0074] Also, by providing the lower engaging portion 126 in the holding portion 124, it is possible to prevent the side arm 130 from accidentally coming off from the case 120.

[0075] Also, a plurality of cases 120 can be stacked stably and compactly.

[0076] Also, the top rail 140 can stretch the screen 110 with an easy operation of just sliding the side arm 130.

[0077] Also, since the side arms 130 are inserted into both ends of the top rail 140 before pulling up the screen 110, the operation of aligning both ends of the top rail 140 with the side arms 130 after pulling up the screen 110 becomes unnecessary, and the workability in assembly can be improved.

[0078] Also, since both ends of the top rail 140 can be engaged with or disengaged from the side arms 130, the workability in assembly can be improved.

[0079] Also, the regulating portion 131 can prevent the top rail 140 from falling off from the upper end of the side arm 130.

[0080] Further, if the top rail 140 is raised until it abuts against the regulating portion 131, the top rail 140 and the side arm 130 engage with each other, thereby improving the operability.

[0081] Also, when the screen devices 100 are arranged side by side, since the stands 150 do not interfere with each other regardless of the arrangement, they can be installed without gaps. Further, at the left and right ends of the case 120, there are formed vertical end faces 123a formed substantially perpendicular to the left-right direction of the case 120, and two inclined end faces 123b symmetrically formed at a predetermined angle in the front-rear direction of the case 120 from both ends of the vertical end face 123a. Therefore, if the end faces are arranged in contact with or close to each other, the gap between the screens 110 can be further reduced. Also in this case, by holding the stands 150 at an angle substantially the same as the angle formed by the end faces, interference between the stands 150 can be avoided. Thus, it is possible to provide a screen device 100 that can be installed side by side without gaps regardless of the arrangement.

[0082] Also, since a pair of stands 150 are provided at the left and right ends of the case 120, the screen device 100 can be installed in a stable state.

[0083] Also, by setting the angle of the inclined end face 123b to 45°, the screen devices 100 can be installed side by side in an L-shape or a cross-shape without gaps.

[0084] Also, since the holding mechanism is the ratchet 154, the angle of the stand 150 can be selected according to the installation method of the plurality of screen devices 100.

[0085] (Second Embodiment) The configuration of the screen device 200 according to the second embodiment will be described with reference to FIG. 21. FIG. 21 is a side view showing the screen device 200 of this embodiment, where (a) shows the state before the side arm 230 is supported by the side cap 223, and (b) shows the state after the side arm 230 is supported by the side cap 223. The configuration of the screen device 200 in which the lower end of the side arm 230 and the side cap 223 are engaged is different from that of the screen device 100 of the first embodiment. Other configurations of the screen device 200 can be the same as those of the first embodiment. In this embodiment, the description will focus on the configuration different from that of the first embodiment.

[0086] 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 includes a circular space portion 232a that forms a substantially circular space that engages with a spherical engaging portion 226b described later, and a tip portion 232b formed so as to gradually separate 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 separate and approach.

[0087] As shown in FIG. 21(a), in the side cap 223, a lower engaging portion 226 is formed to protrude upward at the central position in the front-rear direction of the bottom protruding portion 223d. The lower engaging portion 226 includes a rod-shaped protruding portion 226a that protrudes upward from the bottom protruding portion 223d and a spherical engaging portion 226b that is provided at the tip of the rod-shaped protruding portion 226a. The spherical engaging portion 226b can be fitted into the circular space portion 232a. Note that the spherical engaging portion 226b may be cylindrical or the like as long as it can be fitted into the circular space portion 232a.

[0088] The configuration of the screen device 200 of the present embodiment has been described above. Hereinafter, the operation of the screen device 200 will be described. Insert the side arm 230 into the side cap 223 in the same manner as the side arm 130 of the first embodiment, and lower it as indicated by the arrow j in Fig. 21(a). Then, the spherical engaging portion 226b causes the tip portion 232b and the circular space portion 232a to elastically deform so as to be separated 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 engaging portion 226b to pass through.

[0089] Therefore, as shown in Fig. 21(b), when the spherical engaging portion 226b is completely inserted into the circular space portion 232a, the tip portion 232b elastically deforms so as to approach. Therefore, the spherical engaging portion 226b is engaged with the circular space portion 232a. In this way, the side arm 230 is erected on the side cap 223.

[0090] When removing the side arm 230 from the side cap 223, by pulling up the side arm 230, the bifurcated portion 232 elastically deforms, and the engagement between the spherical engaging portion 226b and the circular space portion 232a is disengaged. By further pulling up the side arm 230, the side arm 230 can be removed from the side cap 223.

[0091] In the present embodiment, the spherical engaging portion 226b is provided on the side cap 223 and the bifurcated portion 232 is provided on the side arm 230, but the spherical engaging portion 226b may be provided on the side arm 230 and the bifurcated portion 232 may be provided on the side cap 223. Further, the shapes of the bifurcated portion 232 and the spherical engaging portion 226b can be arbitrarily designed as long as they can be engaged with each other.

[0092] (Effect of the Second Embodiment) As described above, according to the present embodiment, the side arm 230 can be engaged simply by pushing the bifurcated portion 232 of the side arm 230 into the spherical engaging portion 226b of the side cap 223, and the engagement can be released simply by pulling it up. Therefore, the operation of engaging and releasing the engagement between the side cap 223 and the side arm 230 becomes easier.

[0093] (Third Embodiment) The configuration of the screen device 300 according to the third embodiment will be described with reference to FIG. 22. FIG. 22 is a diagram showing the screen device 300 of the third embodiment. The screen device 300 of the present embodiment mainly differs from the screen device 100 of the first embodiment in the configuration for positioning the side cap 323 and the guide cap 342, the configuration of the top rail 340, the configuration of the side arm storage portion 321, etc. Other configurations of the screen device 300 can be the same as those of the first embodiment. In the present embodiment, the description will focus on the configurations different from those of the first embodiment.

[0094] Instead of the positioning recess 124a of the first embodiment, a positioning projection 324a is formed on the side cap 323 as shown in FIG. 22(a). The positioning projection 324a protrudes upward from the upper end of the end portion of the holding portion 324 on the case 120 side.

[0095] As shown in FIG. 22(a), a positioning recess 344 that is recessed in the direction of the top rail 340 rather than the side arm insertion port 346 is formed in the guide cap 342. The positioning recess 344 can accommodate the positioning projection 324a as shown in FIG. 22(b). The positioning recess 344 is open at the bottom as shown in FIG. 22(c), and when the guide cap 342 is held by the side cap 323, the positioning projection 324a is inserted from below. Therefore, the left - right direction of the top rail 340 is positioned.

[0096] In the left and right side caps 323, as shown in Fig. 22, one storage section entrance 327 is provided at a position where the front - rear direction is reversed, which is different from the side cap 123 of the first embodiment. With such a configuration, the two side arms 130 are inserted from the left - right reverse directions respectively. In this embodiment, the configuration of the storage section entrance 327 may be the same as or different from that of the first embodiment. Also, a storage and holding section similar to the storage and holding section 127a of the first embodiment may be provided. Further, the side - arm storage section 121 provided in the case 120 may have the same configuration as or different from that of the first embodiment.

[0097] As shown in Fig. 22(a), a depression 349 is formed over the entire longitudinal direction on the top rail 340. The depression 349 is arranged at a position where it is easy to grip in the vertical direction of the top rail 340. With such a configuration, when raising or lowering the top rail 340, a finger catches on the depression 349, increasing the holding feeling.

[0098] (Effect of the Third Embodiment) As described above, according to this embodiment, when the top rail 340 is accommodated in the top - rail accommodation depression 122 of the case 120, the positioning convex portion 324a of the side cap 323 is inserted into the positioning concave portion 344 of the guide cap 342, so that the lateral movement of the top rail 340 is restricted and positioned.

[0099] Also, since only one storage section entrance 327 needs to be provided in the side cap 323, the configuration of the side cap 323 is simplified and productivity is improved.

[0100] Also, since the depression 349 is formed on the top rail 340, when raising or lowering the top rail 340, a finger catches on the depression 349, increasing the holding feeling.

[0101] (Fourth Embodiment) The configuration of the screen device 400 according to the fourth embodiment will be described with reference to FIG. 23. FIG. 23 is a perspective view showing the screen device 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 locked in the middle of the side arm 430. The screen device 400 of this embodiment is different from the screen device 100 of the first embodiment in that an intermediate locking portion 436 is provided on the side arm 430. Other configurations of the screen device 400 can be the same as those of the first embodiment. In this embodiment, the description will focus on the configuration different from the first embodiment.

[0102] As shown in FIG. 23(a), three intermediate locking portions 436 are provided below the upper locking portion 433 on the side arm 430. The three intermediate locking portions 436 are provided at three positions on the side arm 430 at equal intervals in the vertical direction. Since 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, the description thereof will be omitted here.

[0103] The configuration of the screen device 400 of this embodiment has been described above. Hereinafter, the operation of the screen device 400 will be described. The top rail 140 is raised along the side arm 430 as shown by the arrow k in FIG. 23(a). When the top rail 140 is being raised, it passes through the intermediate locking portion 436. When the raising of the top rail 140 is stopped, it locks to the immediately below intermediate locking portion 436 as shown in FIG. 23(b). Therefore, the top rail 140 can be stopped at an intermediate position. In this way, the height of the screen 110 can be adjusted.

[0104] (Effect of the Fourth Embodiment) As described above, according to this embodiment, by providing the intermediate locking portion 436 on the side arm 430, the top rail 140 can be stopped at an intermediate position. Therefore, the height of the screen 110 can be adjusted.

[0105] (Fifth Embodiment) The configuration of the screen device 500 according to the fifth embodiment will be described with reference to FIG. 24. FIG. 24 is a diagram showing the screen device 500 of this embodiment. (a) is a perspective view showing a state where the joint 570 is removed, (b) is a plan view showing a state where two screen devices 500 are connected by the joint 570, and (c) is a plan view showing a state where three screen devices 500 are connected by the joint 570. The screen device 500 of this embodiment is different from the screen device 100 of the first embodiment in that a joint 570 for fixing the screen devices 500 to each other is provided. Other configurations of the screen device 500 can be the same as those of the first embodiment. In this embodiment, the description will focus on the configuration different from the first embodiment.

[0106] 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 substantially U-shaped configuration in which one ends of two pieces 572 are connected to each other. Connection holes 523f into which one piece 572 of the joint 570 can be inserted are respectively formed on the upper surface of the portion where the inclined end face 523b of the side cap 523 is formed.

[0107] The configuration of the screen device 500 of this embodiment has been described above. Hereinafter, the operation of the screen device 500 will be described. When connecting the screen devices 500 linearly 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 linearly arranged screen devices 500 are stabilized. Therefore, only the stand 150 on the unconnected side is used, and the stand 150 on the connected side can remain stable even when stored. Thus, the space on the desk or table can be secured.

[0108] Also, when connecting three screen devices 500 in a T-shape as shown in Fig. 24(c), the inclined end faces 523b of adjacent screen devices 500 are brought into contact with each other, and the connection holes 523f provided on the upper surface of the portion of the abutted inclined end faces 523b are connected by a joint 570. When connected by the joint 570, the screen devices 500 arranged in a T-shape are stabilized, so that they are stable even when stored without using the stand 150. Therefore, the space on a desk or a table can be secured.

[0109] (Effect of the Fifth Embodiment) As described above, according to the present embodiment, when a plurality of screen devices 500 are connected and used and connected by the joint 570, they are stable even when stored without using part or all of the stand 150. Therefore, the space on a desk or a table can be secured.

[0110] As described above, the preferred embodiments of the present invention have been described with reference to the accompanying drawings. Needless to say, the present invention is not limited to such examples. It is obvious that those skilled in the art can come up with various modification examples or correction examples within the scope described in the claims, and it is naturally understood that they also belong to the technical scope of the present invention.

[0111] For example, in the above first embodiment, as an example of the base portion, the case 120 of a portable long box has been described, but the present invention is not limited to this example. For example, the base portion may be fixed in advance on the top plate of a desk or a table, may be fixed in a state of being embedded in the top plate, may be detachably embedded, or may be integrated with the desk or the table. The same applies to the second to fifth embodiments.

[0112] In the first embodiment described above, the top rail 140 has receiving portions 148 at both left and right ends that can engage with the upper ends of the side arms 130. The side arms 130 are pulled up to the upper ends of the side arms 130 with the side arms 130 inserted into the receiving portions 148, and are configured to engage with the upper ends of the side arms 130. However, the present invention is not limited to this example. As long as the upper support member can slide on the support member, the support member does not have to pass through the upper support member. For example, the upper support member may be slidably engaged with a rail formed on the support member. The same applies to the second to fifth embodiments.

[0113] In the first embodiment described above, the upper end portion of the side arm 130 is configured to be formed with an upper locking portion 133 that can lock and unlock with the receiving portion 148. However, the present invention is not limited to this example. As long as the upper support member can be locked and unlocked with the support member, it can be arbitrarily designed. The same applies to the second to fifth embodiments.

[0114] In the first embodiment described above, the upper end portion of the side arm 130 is configured to be formed with a restricting portion 131 that restricts the upward movement of the top rail 140. However, the present invention is not limited to this example. As long as the upper support member can be prevented from falling off the support member, it can be arbitrarily designed. The same applies to the second to fifth embodiments.

[0115] In the first embodiment described above, when the upward movement of the top rail 140 is restricted by the restricting portion 131, the receiving portion 148 and the upper locking portion 133 are configured to lock. However, the present invention is not limited to this example. As long as the upper support member and the support member are configured to lock, it can be arbitrarily designed. The same applies to the second to fifth embodiments.

[0116] In the fourth embodiment described above, an intermediate locking portion 436 that can lock and unlock with the receiving portion 148 is formed at an intermediate height of the side arm 130. However, the present invention is not limited to this example. As long as the upper support member is configured to lock at an intermediate height of the support member, it can be arbitrarily designed.

Explanation of Reference Numerals

[0117] 100, 200, 300, 400, 500 Screen devices 110 Screen 120 Case (base part) 121 Side arm storage part 122 Top rail storage depression 123, 223, 323 Side caps 123a, 523a Vertical end faces 123b, 523b Inclined end faces 123c Step part 123d, 223d Bottom protrusions 123e Lower depression (recess) 124, 324 Holding parts 124a Positioning recess 125, 325 Lower release parts 126, 226, 326 Lower engaging parts 127, 327 Storage part entrance 127a Storage holding part 128 Rotation support shaft 129 Stopper 130, 230, 430 Side arms (support column members) 131 Regulation part 132 Rocking piece 133, 433 Upper locking parts 134 Upper release part 135 Hook part 140, 240, 340 Top rails (upper support members) 142, 342 Guide caps 144 Positioning protrusion 146, 346 Side arm insertion openings 148 Receiving part 150 Stand (leg member) 154 Ratchet 160 Winding pipe 232 Fork part 324a Positioning protrusion 344 Positioning recess 436 Intermediate locking part 523f Connecting hole 570 Joint

Claims

1. A screen, an upper support member connected to the upper end of the screen, a base portion capable of accommodating the screen so that it can be pulled out and pulled back, a support column member that slidably supports the upper support member and is engaged and connected to a receiving portion provided on the upper support member, so that the screen can be stretched above the base portion, comprising: at the upper end of the support column member, a restricting portion for restricting upward movement of the upper support member and an upper locking portion for engaging with the upper support member are formed, A screen device, characterized in that when the upper support member is pulled up to the restricting portion, the upper support member and the upper locking portion are engaged with each other.

2. The upper support member has the receiving portions at both left and right ends. The screen device according to claim 1, characterized in that when the support column member is inserted through the receiving portions and pulled up to the restricting portion of the support column member, the upper support member is engaged with the upper locking portion of the support column member.

3. The screen device according to claim 1 or 2, characterized in that the upper locking portion is formed so as to be capable of locking and unlocking with the receiving portion.

4. The screen device according to any one of claims 1 to 3, characterized in that an intermediate locking portion capable of locking and unlocking with the receiving portion is formed at an intermediate height of the support column member.

Images