Screen device for blinding and assembly shelf equipped with the same

Abstract

To provide a screen device which has a simple structure for attaching the screen device to support posts of an assembly shelf and whose attachment work is easy and an assembly shelf equipped with the same.SOLUTION: A screen device 1 is attached to an assembly shelf where shelf boards are provided between first to fourth support posts whose upper ends are open and which have hollow interiors. The device includes: a screen 2 which has ends at the top and bottom and can expand and contract in the vertical direction; a fixed frame 10 which holds the upper end of the screen and is attached to the assembly shelf; a movable frame 20 which holds the lower end of the screen and moves vertically with the expansion and contraction operation of the screen; and a screen operation mechanism 30 used for the contraction operation of the screen. First and second support parts 40, 50 are provided at both ends of the fixed frame. The support parts each include: an arm part which protrudes backward; and support shafts 42, 52 which are fixed to the arm part, extend downward, and are inserted from the upper ends of the first and second support posts to support the fixed frame on the support posts.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a privacy screen device that is to be attached to an assembly shelf having shelves arranged between a plurality of pipe-shaped supports, and to an assembly shelf equipped with the same. [Background technology]

[0002] Various types of prefabricated shelves in which shelves are provided between multiple pipe-shaped supports have been known in the past. Patent Document 1 discloses a wire shelf formed using metal wire as an example of such a prefabricated shelf. A roll screen (roll blind) is attached to this wire shelf so that objects placed on the shelf cannot be seen from the outside. This roll screen is attached to the shelf of the wire shelf via a locking member (suspension member).

[0003] The locking member is configured to have a hook portion that is locked to the metal wire that forms the shelf board, and a flat plate portion that extends from the end of the hook portion. In addition, the roll screen has a rail member for attaching to the shelf board that is installed between a pair of support members that rotatably support both axial ends of a winding shaft that winds up the privacy screen, and a slide member is provided within the rail member so as to be movable in the longitudinal direction of the rail member. The locking member is attached to the slide member.

[0004] However, the locking member is fixed to the rail member by fastening a bolt inserted through the flat portion of the locking member to the slide member, integrating the slide member and the rail member. Therefore, the structure for fixing the locking member to the rail member is complicated. Furthermore, when fixing the locking member to the rail member, it is necessary to move the slide member within the rail member to a position where the hook portion can engage with the metal wire, and then fix the locking member to the rail member via the bolt. Therefore, the task of fixing the locking member to the rail member is cumbersome.

[0005] Therefore, there has been a demand for a privacy screen device that has a simple structure for mounting the privacy screen device to an assembly shelf and that allows the screen device to be easily mounted to an assembly shelf, and an assembly shelf equipped with the same. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Utility Model Registration No. 3084243 Summary of the Invention [Problem to be solved by the invention]

[0007] To provide a privacy screen device that has a simple structure for mounting the privacy screen device to an assembly shelf and that can easily mount the screen device to an assembly shelf, and an assembly shelf equipped with the same. [Means for solving the problem]

[0008] In order to solve the above-mentioned problems, the screen device for privacy of the present invention is a screen device for privacy to be attached to an assembly shelf having shelves between a plurality of pillars which are open at the upper end and hollow inside, the screen device having an upper end and a lower end and which can be expanded and contracted in the vertical direction, a fixed frame which holds the upper end of the screen and is attached to the assembly shelf, a movable frame which holds the lower end of the screen and moves in the vertical direction relative to the fixed frame as the screen is expanded and contracted, and a screen operating mechanism which is used to contract the screen, and a first support portion and a second support portion are provided on both longitudinal ends of the fixed frame for supporting the fixed frame on a pair of adjacent pillars, and each of the first and second support portions has an arm portion extending horizontally and a support shaft which is fixed to the arm portion and extends downward and is inserted into the interior of the pillar from the upper end thereof to support the fixed frame on the pillar.

[0009] In this case, the screen is disposed between the first and second support parts, and the support shaft is disposed in a position such that at least a portion of the support shaft overlaps with the screen when viewed from the front, and is disposed on the rear side of the fixed frame.

[0010] In addition, preferably, the screen operation mechanism has one end connected to the movable frame and the other end having a wire extending from the lower end of the support shaft through the screen, the fixed frame, the arm portion of the first support portion and the support shaft, and a weight connected to the wire extending from the lower end of the support shaft, the weight being formed so as to be insertable into the interior from the upper end of the support pillar.

[0011] In addition, preferably, the fixed frame and the first support part are hollow inside, the arm part of the first support part protrudes toward the back side of the fixed frame, the support shaft extends downward from the underside of the tip side of the arm part in the protruding direction, and a locking protrusion protrudes from the side wall of the base end side of the arm part in the protruding direction, and the locking protrusion is inserted from one of the ends of the fixed frame to lock the first support part to the fixed frame, a roller supported so as to be rotatable around a rotation axis extending in the vertical direction is provided inside the base end side of the arm part in the protruding direction, and the other end side of the wire is introduced into the first support part through the fixed frame, wrapped around the roller, extending to the tip side of the arm part in the protruding direction, and inserted from the upper end of the support shaft.

[0012] Preferably, the weight has a hole at its upper end through which the wire extending from the through hole of the one support part is inserted, the wire inserted into the hole is folded back upward at the hole, and the tip of the wire is fixed to the outer periphery of the support shaft. Preferably, a ring is formed at the tip of the wire inserted into the hole and folded back upward, and a locking groove for locking the ring-shaped part of the wire is provided on a side surface of the support shaft, the locking groove is formed in an inverted U-shape on the side surface of the support shaft in a side view, and the lower end opens downward, and the ring-shaped part of the wire is locked in the locking groove while being immersed in the locking groove.

[0013] The weight is heavier than the weight of the movable frame, and the movable frame is provided with a locking hook that protrudes from its rear side and is adapted to be locked to the shelf plate of the assembly shelf.

[0014] The assembly shelf of the present invention is the assembly shelf to which the screen device is attached. Effect of the Invention

[0015] According to the present invention, it is possible to provide a privacy screen device having a simple structure for mounting the privacy screen device to an assembly shelf and which allows the screen device to be easily mounted to an assembly shelf, and an assembly shelf equipped with the same. [Brief description of the drawings]

[0016] [Figure 1] 1 is a front view of a screen unit according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a plan view of the screen device. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] 1 shows the first support part, in which FIG. 1(a) is a plan view of the first support part, FIG. 1(b) is a left side view of the first support part, and FIG. 1(c) is a rear view of the first support part. [Figure 6] 6 is a cross-sectional view of the first support part taken along line VI-VI of FIG. 5(a). [Figure 7] 11 is an explanatory diagram of a process for attaching the first and second support parts to the first and second pillars. FIG. [Figure 8] 11A to 11C are explanatory views of the operation of attaching and detaching the first and second support parts to the first and second pillars. [Figure 9] FIG. 4 is a front view of the assembly shelf to which the screen device is attached. [Figure 10] FIG. 4 is a plan view of the assembly shelf on which the screen device is attached. [Figure 11] FIG. 4 is a right side view of the assembly shelf to which the screen unit is attached. [Figure 12] FIG. 13 is an explanatory diagram for unlocking the screen. [Figure 13] 1A and 1B show an assembly shelf, in which FIG. 1A is a plan view of the assembly shelf, and FIG. 1B is a front view of the assembly shelf. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] 1 to 6 show an embodiment of a screen device according to the present invention. This screen device is intended to prevent objects placed on a shelf of an assembly shelf having shelves between a number of posts from being visible from the outside. In this embodiment, an example will be described in which the assembly shelf has two shelves and the screen is a foldable type having a honeycomb structure.

[0018] First, before describing the screen device according to the present invention, the assembly shelf will be described. As shown in Fig. 13(a) and Fig. 13(b), the assembly shelf 80 has four first to fourth support columns (support columns) 81-84 and two first and second shelf boards (shelf boards) 85, 86. Each of the first to fourth support columns 81-84 is formed in a cylindrical shape with holes (hollow) 81a-84a that penetrate vertically inside, and these support columns 81-84 are formed to have the same shape as each other, that is, the same outer diameter, inner diameter, and length. Of these pillars 81-84, the first and second pillars 81, 82 are disposed on the front side in the front-rear direction perpendicular to the up-down direction, and the third and fourth pillars 83, 84 are disposed on the rear side of the first and second pillars 81, 82, and the first and second pillars 81, 82 and the third and fourth pillars 83, 84 are disposed at equal intervals in the width direction (hereinafter referred to as the "left-right direction") perpendicular to the front-rear direction. Therefore, the first to fourth pillars 81-84 are disposed at the four corners of a rectangle in a plan view.

[0019] Between these first and fourth pillars 81-84, first and second shelf plates 85, 86 formed in a rectangular shape in a plan view are attached. In this embodiment, the first and second shelf plates 85, 86 are wire shelves formed using metal wire and have top walls 85a, 86a and side walls 85b, 86b extending downward so as to surround the periphery of the top walls 85a, 86a. The first shelf plate 85 is attached to the upper part between the first and fourth pillars 81-84, and the second shelf plate 86 is attached to the lower part between the first and fourth pillars 81-84 below the first shelf plate 85.

[0020] A first opening 87 surrounded by the first and second pillars 81, 82 and the first shelf 85 is located above the front side of the first shelf 85, a second opening 88 surrounded by the shelves 85, 86 and the first and second pillars 81, 82 is located above the front side of the first shelf 85, and a third opening 89 surrounded by the first and second pillars 81, 82 and the second shelf 86 is located below the front side of the second shelf 86.

[0021] Next, a description will be given of a screen unit 1 (hereinafter, simply referred to as “screen unit 1”) for privacy purposes that is attached to the above-mentioned assembly shelf 80. The screen unit 1 of this embodiment is for opening and closing the first opening 87.

[0022] As shown in Figures 1 to 4, the screen device 1 is composed of a screen 2 having an upper end 2a and a lower end 2b and capable of expanding and contracting in the vertical direction, a fixed frame 10 for holding the upper end 2a of the screen 2 and attaching it to an assembly shelf 80, a movable frame 20 for holding the lower end 2b of the screen 2 and moving up and down relative to the fixed frame 10 as the screen 2 expands and contracts, a screen operation mechanism 30 used for contracting the screen 2, a first support portion 40 and a second support portion 50 provided at both left and right ends (both longitudinal sides) of the fixed frame 10 for supporting the fixed frame 10 on a pair of adjacent first and second pillars 81, 82, and a locking hook 25 (see Figure 3) provided on the movable frame 20 for locking the movable frame 20 to a first shelf 85 of the assembly shelf 80 when the screen 2 is expanded.

[0023] In this embodiment, the screen 2 is made of a honeycomb screen. The screen 2 is formed by folding a foldable flexible sheet material alternately in opposite directions at a constant width, and the cylindrical portions 4 (see FIG. 3) are formed by extending in the left-right direction and arranging a plurality of them in parallel in the up-down direction. A first fixed plate 5 and a second fixed plate 6, which are plate-shaped in a side view, are attached to the upper end 2a and the lower end 2b of the screen 2. The first fixed plate 5 is attached to a fixed frame 10 and first and second support portions 40, 50 attached to both left-right ends of the fixed frame 10, and the second fixed plate 6 is attached to a movable frame 20. As a result, the screen 2 can be expanded and contracted in the up-down direction relative to the fixed frame 10 by moving the movable frame 20 in the up-down direction. On both the left and right sides of the first fixed plate 5, insertion holes (not shown) are opened for inserting first and second wires 71, 72 described later.

[0024] The width W1 in the left-right direction of the screen 2 is approximately the same as the width W2 between the first and second support parts 40, 50 attached to both left-right sides of the fixed frame 10. Details of the first and second support parts 40, 50 will be described later. Note that the screen 2 is not limited to the configuration described above, and may be formed by arranging multiple cylindrical parts 4 in multiple layers in the front-rear direction and arranging multiple cylindrical parts 4 side by side in the up-down direction, or may be formed in a pleated shape.

[0025] The movable frame 20 is a frame extending in the left-right direction. In this embodiment, the movable frame 20 is formed in a hollow rectangular parallelepiped shape, and an opening 21 is provided in the upper part of the movable frame 20 for inserting the second fixed plate 6 provided at the lower end of the screen 2. The movable frame 20 is formed of a metal material, functions as a weight, and is balanced with a weight 33 of the screen operation mechanism 30 described later. In this embodiment, the width W3 of the movable frame 20 in the left-right direction is the same as the width W1 of the screen 2.

[0026] Provided at the center of the movable frame 20 in the left-right direction (longitudinal direction) are a gripping portion 22 that protrudes forward and is operated when expanding and contracting the screen 2 in the up-down direction, and a locking hook 25 that protrudes rearward and is used to lock the movable frame 20 to the first shelf 85 of the assembly shelf 80 when the screen 2 is in an expanded state. The gripping portion 22 has a handle portion 22a that protrudes forward from the movable frame 20, and the locking hook 25 has a locking piece portion 25a that protrudes rearward from the movable frame 20. The tip of the locking piece in the protruding direction is bent upward and is formed into a hook shape in a side view.

[0027] In this embodiment, the handle portion 22a and the locking piece portion 25a are integrally formed, and the handle portion 22a is formed on the front side of the mounting main body portion 23 that is detachably attached from the underside of the movable frame 20, and two locking pieces 25a are formed on the rear side of the mounting main body portion 23 with a gap therebetween in the left-right direction. The locking pieces 25a extend so as to be lockable with the front side wall 85b of the first shelf board 85 of the assembly shelf 80 when the screen 2 is in the expanded state. Therefore, by locking the locking pieces 25a with the side wall 85b of the first shelf board 85 when the screen 2 is in the expanded state, the upward movement of the movable frame 20 relative to the first shelf board 85 is restricted, and the screen 2 can be locked in the expanded state.

[0028] The fixed frame 10 is a frame extending in the left-right direction, similar to the movable frame 20. In this embodiment, the fixed frame 10 is formed in a hollow rectangular parallelepiped shape, and has a first end 10a and a second end 10b at both ends in the left-right direction (longitudinal direction). That is, the fixed frame 10 has its first end 10a and second end 10b open. In addition, an opening (not shown) is formed in the lower part of the fixed frame 10 for inserting the first fixed plate 5, and the first fixed plate 5 is fixed to the fixed frame 10 in a state where it is inserted into the first fixed plate 5 from this opening. In the fixed frame 10, first and second deflectors 27 and 28 are provided above the insertion holes of the first fixed plate 5 to change the directions of the first and second wires 71 and 72 inserted from these insertion holes. The first and second wires 71 and 72 constitute a part of a screen operation mechanism 30, which will be described later.

[0029] A first support part 40 and a second support part 50 are attached to the first end 10a and the second end 10b of the fixed frame 10. Since the first support part 40 and the second support part 50 have the same structure, the first support part 40 will be described, and the same parts as those of the first support part 40 will be denoted by corresponding reference numerals and the description thereof will be omitted. In this embodiment, as shown in Figs. 3, 5, and 6, the first support part 40 has an arm part 41 protruding backward from the fixed frame, and a first support shaft 42 (support shaft) fixed to the arm part 41, extending downward, and inserted into the inside from the upper end of the first support pillar 81 to fix the fixed frame 10 to the first support pillar 81.

[0030] In this embodiment, the arm portion 41 is hollow and formed in a rectangular parallelepiped shape extending in the front-rear direction with approximately the same vertical thickness as the fixed frame 10. An opening 43 is formed in the side wall 40a of the arm portion 41 on the first end 10a side of the fixed frame 10, and the inside of the arm portion 41 communicates with the inside of the fixed frame 10 through the opening 43. A base plate 44 extending in the left-right direction is inserted into the arm portion 41. The left end of the base plate 44 protrudes from the opening 43, and the protruding base plate 44 is inserted into the fixed frame 10, thereby connecting the arm portion 41 to the right end of the fixed frame 10. A roller 45 (a deflector) is arranged on the base plate 44 extending into the arm portion 41 to change the direction of the first and second wires 71 and 72 inserted into the first support portion 40 through the fixed frame 10 to the rear side. The roller 45 is supported rotatably around a rotation shaft 47 extending in the vertical direction.

[0031] A first support shaft 42 is formed at the lower end on the rear side of the arm portion 41. The first support shaft 42 is formed in a cylindrical shape and extends downward perpendicular to the arm portion 51. A through hole 42a is formed inside the first support shaft 42, penetrating in the vertical direction and communicating with the inside of the arm portion 41. First and second wires 71 and 72, which will be described later, are inserted through this through hole 42a. A diameter φC of the first support shaft 42 is slightly smaller than an inner diameter φB of a hole 81a of a first support column 81 of the assembly shelf 80 described above. Therefore, the first support shaft 42 can be inserted and removed into the hole 81a of the first support column 81. In this embodiment, the first support shaft 42 is formed integrally with the arm portion 11.

[0032] A locking groove 46 for locking the ends of the first and second wires 71, 72 is formed in the lower rear part of the first support shaft 42. The locking groove 46 extends in the vertical direction and is curved in an inverted U shape, and includes an outer groove 46a that opens at the outer circumferential surface and the lower end of the first support shaft 42 and into which the first and second wires 71, 72 are inserted and removed, and an inner groove 46b that communicates with the bottom of the outer groove 46a, is formed in an inverted U shape along the inside of the outer groove 46a, and locks the first and second wires 71, 72. The lower end of the inner groove 46b also opens downward.

[0033] 2, the first support shaft 42 is disposed at a distance d between the rear side wall 10c of the fixed frame 10 in a plan view. That is, the first support shaft 42 is disposed at the rear of the fixed frame 10. Similarly, the second support shaft 52 of the second support portion 50 is disposed at a distance d between the rear side wall 10c of the fixed frame 10. The first and second support shafts 42, 52 are disposed at positions such that at least a portion of the first and second support shafts 42, 52 overlap with the screen 2 when the screen 2 is viewed from the front. In this embodiment, the screen 2 is disposed between both left and right ends of the first and second support portions 40, 50, so that the first and second support shafts 42, 52 are disposed at positions such that the entirety of the first and second support shafts 42, 52 overlap with the screen 2 when the screen 2 is viewed from the front.

[0034] 9 and 10, when the first and second support shafts 42, 52 are inserted into the first and second pillars 81, 82, no gaps are formed between the inner left-right ends of the first and second pillars 81, 82 and the outer left-right ends of the screen 2, so that the first opening 87 can be completely blocked by the screen 2. In addition, since the fixed frame 10 is disposed forward at a distance d from the first and second support shafts 42, 52, there is no risk of the screen 2 coming into contact with the first and second support shafts 42, 52 or the first shelf board 85 when the screen 2 is expanded or contracted.

[0035] 2, the distance L1 between the first and second support shafts 42, 52 is the same as the distance L2 (see FIG. 13(a)) between the first and second support columns 81, 82. Therefore, the first and second support shafts 42, 52 can be inserted into the first and second support columns 81, 82 of the assembly shelf 80, respectively.

[0036] Incidentally, the screen device 1 configured in this manner is provided with a screen operation mechanism 30 which is used for expanding and contracting the screen 2 in accordance with the up and down operation of the movable frame 20. As shown in Figures 1 to 4, the screen operation mechanism 30 has one end connected to the movable frame 20 and the other end successively connected to the screen 2, the fixed frame 10, the arm portion 41 of the first support part 40, the first support shaft 42, first and second wires 71, 72 which extend from the lower end of the first support shaft 42, and a weight 33 which is connected to the tip end of the first and second wires 71, 72 which extend from the second support shaft 42.

[0037] In this embodiment, one end of the first wire 71 is connected to the right side of the movable frame 20, and the other end extends upward within the screen 2 and is inserted into the fixed frame 10, the first wire 71 inserted into the fixed frame 10 extends toward the first support portion 40 via the first deflector 27 arranged in the fixed frame 10 and is inserted into the arm portion 41 of the first support portion 40, the first wire 71 inserted into the arm portion 41 extends toward the arm portion 41 via the roller 45 in the arm portion 41, and the first wire 71 extending toward the arm portion 41 is inserted from the upper end of the through hole 42a of the first support shaft 42 and extends from the lower end of the through hole 42a.

[0038] On the other hand, one end of the second wire 72 is connected to the left side of the movable frame 20, and the other end extends upward within the screen 2 and is inserted into the fixed frame 10. The second wire 72 inserted into the fixed frame 10 extends toward the first support part 40 via the second deflector 28 arranged in the fixed frame 10 and is inserted into the arm part 41. Thereafter, the second wire 72 is arranged in the same manner as the first wire 71 and extends from the lower end of the through hole 42a of the first support shaft 42.

[0039] A weight 33 is connected to the first and second wires 71, 72 extending from the through-hole 42a. The weight 33 is heavier than the movable frame 20. In this embodiment, the weight 33 is slightly heavier than the movable frame 20. Therefore, by operating the handle portion 22a of the movable frame 20 up and down, the screen 2 can be easily contracted or expanded. In addition, when the movable frame 20 is moved upward in a state in which the screen 2 is expanded, the biasing force of the weight 33 can cause the locking piece portion 25a to lock with the side wall 85b from below the first shelf board 85.

[0040] Weight 33 is formed in a rod shape extending in the vertical direction so that it is inserted into first support 81 from the upper end thereof and is movable in the vertical direction within first support 81. In this embodiment, weight 33 is formed in a cylindrical shape having an outer diameter φA slightly smaller than an inner diameter φB (see FIG. 13a) of hole 81a of first support 81. As a result, weight 33 can move in the vertical direction within hole 81a in response to the vertical movement of movable frame 20.

[0041] In this embodiment, the upper end of the weight 33 is provided with a hole 33a through which the first and second wires 71, 72 are inserted and folded back upward. The folded back first and second wires 71, 72 have annular portions 71a, 72a (see FIG. 3) formed at their respective distal ends, and the other ends of the first and second wires 71, 72 can be locked to the first support shaft 42 by inserting the annular portions 71a, 72a into the inner groove portion 46b of the locking groove portion 46 of the first support shaft 42. Therefore, the vertical movement of the weight 33 relative to the first support column 81 can be made smaller than the vertical movement of the movable frame 20. In addition, the annular portions 71a, 72a of the first and second wires 71, 72 are inserted into the inner groove portion 46b, so that they do not protrude radially outward from the outer circumferential surface of the first support shaft 42. As a result, the annular portions 71a, 72a are engaged with the locking groove portion 46 while being immersed within the locking groove portion 46, so that when the first support shaft 42 is inserted from the upper end of the first support pillar 81, the first and second wires 71, 72 do not get in the way, and the first support shaft 42 can be smoothly inserted into the first support pillar 81.

[0042] The second support part 50 is configured in the same manner as the first support part 40, but differs from the first support part 40 in that the arm part 51 and the second support shaft 52 of the second support part 50 do not have the first and second wires 71, 72 passing through them.

[0043] Next, an installation operation for installing the screen unit 1 on the assembly shelf 80 and an detachment operation for removing the screen unit 1 installed on the assembly shelf 80 from the assembly shelf 80 will be described. First, the installation operation will be described. When installing the screen unit 1 on the assembly shelf 80, the screen unit 1 is placed in front of the assembly shelf 80 with the first and second support shafts 42, 52 of the screen unit 1 facing the first and second support columns 81, 82 of the assembly shelf 80, as shown in Fig. 7. At this time, the screen 2 may be in either an expanded or contracted state.

[0044] 8, the screen unit 1 is moved above the assembly shelf 80 so that the first support shaft 42 and the weight 33 are above the first support pillar 81 and the second support shaft 52 is above the second support pillar 82. The screen unit 1 is then moved downward so as to approach the assembly shelf 80, and the weight 33 and the first and second wires 71, 72 connected thereto are inserted into the hole 81a from the upper end of the first support pillar 81.

[0045] Simultaneously with the insertion of the first support shaft 42 into the first support pillar 81, the second support shaft 52 (see FIG. 4) is inserted into the hole 82a from the upper end of the second support pillar 82 (see FIG. 13(a)). Then, when the upper ends of the first and second support pillars 81, 82 come into contact with the bottom surfaces of the arm portions 51, 51 of the first and second support portions 40, 50, respectively, as shown in FIG. 11, the installation work of the screen unit 1 to the assembly shelf 80 is completed.

[0046] On the other hand, when the screen unit 1 attached to the assembly shelf 80 is to be removed from the assembly shelf 80, the above-mentioned attachment work can be performed in reverse. That is, as shown in Fig. 11, the screen unit 1 is moved upward from the state where it is attached to the assembly shelf 80. When the screen unit 1 is moved upward relative to the assembly shelf 80, as shown in Fig. 8, the first support shaft 42 and the weight 33 are removed from the hole 81a of the first support pillar 81 and move above the first support pillar 81, and the second support shaft 52 is removed from the hole 82a of the second support pillar 82 and moves above the second support pillar 82. As a result, the work of removing the screen unit 1 from the assembly shelf 80 is completed.

[0047] In this way, the screen unit 1 has the first and second support shafts 42, 52 at both left and right ends of the fixed frame 10 that supports the screen unit 1 on the first and second support pillars 81, 82 of the assembly shelf 80, and the screen unit 1 can be attached to the assembly shelf 80 simply by inserting these support shafts 42, 52 into the first and second support pillars 81, 82 from their respective upper ends. Therefore, it is possible to provide a screen unit 1 and an assembly shelf 80 equipped with the same, which have a simple structure for attaching the screen unit 1 to the support pillars 81, 82 of the assembly shelf 80 and which allows the screen unit 1 to be easily attached to the support pillars 81, 82.

[0048] 9 and 11, when the screen unit 1 of the assembly shelf 80 equipped with the screen unit 1 is moved downward with respect to the fixed frame 10 by the handle portion 22a of the gripping portion 22 of the screen unit 1, the screen 2 is expanded and the first opening 87 is closed. Then, by engaging the locking piece portion 25a of the locking hook 25 provided on the movable frame 20 with the side wall 85b of the first shelf board 85 of the assembly shelf 80, the upward movement of the movable frame 20 is restricted and the screen 2 can be locked in the expanded state.

[0049] On the other hand, to release the locked state of the screen 2, as shown in Figure 12, the handle portion 22a is operated downward to move the locking piece portion 25a downward relative to the side wall 85b of the first shelf 85, thereby releasing the locked state of the locking hook 25 relative to the side wall 85b, and then the handle portion 22a is operated forward to move the locking hook 25 forward, which enables the movable frame 20 to move upward, thereby releasing the locked state of the screen 2.

[0050] The screen operation mechanism 30 of the screen device 1 described above is configured to have the wires 71, 72 and the weight 33 to contract the screen 2, but is not limited thereto. The screen operation mechanism 30 may also be configured to expand and contract the screen 2. In this case, the screen operation mechanism 30 is configured to further have a movable frame 20 that holds the lower end 2b of the screen 2 in addition to the wires 71, 72 and the weight 33, and the screen 2 can be expanded and contracted by making the weight of the movable frame 20 heavier or lighter than the weight of the weight 33. The screen operation mechanism 30 is also configured to have a winding shaft that is rotatably supported so as to be able to wind up and unwind the screen 2, a sprocket attached to an end of one axial side of the winding shaft, and an operating cord that is wound around the sprocket to rotate the winding shaft, and the screen 2 can be expanded and contracted by rotating the operating cord forward and backward.

[0051] In addition, the screen 2 of the screen unit 1 described above is shown as being capable of opening and closing the first opening 87 of the assembly shelf 80, but is not limited to this. The screen may be capable of opening and closing the first and second openings 87, 88, or may be capable of opening and closing all of the first to third openings 87, 88, 89. [Explanation of symbols]

[0052] 1. Screen device for privacy 2 Screens 2a Upper end 2b Bottom end 10 Fixed frame 10a First end (one end) 10b 2nd end 20 Movable frame 30 Screen operation mechanism 33 Weight 33a hole 40 1st support part 40a Sidewall 41, 51 Arm section 42 1st support shaft (support shaft) 44a Locking protrusion 45 Lola 46 Locking groove 47 Rotational Axis 50 Second support part 52 2nd support shaft (support shaft) 71 First Wire (Wire) 72 Second Wire (Wire) 71a, 72a Circular section 80 Assembled Shelf 81 1st pillar (pillar) 81a, 82a, 83a, 84a Hole (hollow) 82 Second pillar (post) 83 3rd pillar (post) 84 4th pillar (pillar) 85 1st shelf (shelf) 86 Second shelf (shelf)

Claims

1. A privacy screen device to be attached to an assembly shelf having a plurality of hollow posts with an open upper end and shelves provided between the posts, The screen device includes: a screen having an upper end and a lower end and capable of expanding and contracting in the vertical direction; A fixing frame for holding the upper end of the screen and attaching it to the assembly shelf; a movable frame that holds the lower end of the screen and moves up and down relative to the fixed frame in accordance with the expansion and contraction of the screen; A screen operation mechanism for contracting the screen; A first support portion and a second support portion are provided at both ends of the fixed frame in the longitudinal direction for supporting the fixed frame on a pair of adjacent columns, Each of the first and second support parts has an arm part extending horizontally, and a support shaft fixed to the arm part, extending downward, and inserted into the upper end of the support pole to support the fixed frame on the support pole. A screen device for privacy.

2. The screen is disposed between the first and second support portions, The support shaft is disposed at a position where at least a part of the support shaft overlaps with the screen when the screen is viewed from the front, and is disposed on the rear side of the fixed frame.

2. The privacy screen device according to claim 1.

3. the screen operation mechanism has one end connected to the movable frame and the other end connected in sequence to the screen, the fixed frame, the arm portion of the first support portion, and the support shaft, and includes a wire extending from a lower end of the support shaft, and a weight connected to the wire extending from the lower end of the support shaft; The weight is formed so as to be insertable into the interior from the upper end of the support.

2. The privacy screen device according to claim 1.

4. The fixed frame and the first support part are formed to have a hollow interior, The arm portion of the first support portion protrudes toward a rear side of the fixed frame, The support shaft extends downward from a lower surface of the tip end of the arm portion in a protruding direction, A locking projection projects from a side wall of the arm portion on the base end side in the protruding direction, the locking protrusion is inserted from one end of the fixed frame to lock the first support part to the fixed frame, A roller is provided inside the arm portion on the base end side in the protruding direction and is supported rotatably around a rotation axis extending in the vertical direction. The other end of the wire is introduced into the first support part through the fixed frame, wound around the roller, extends to the tip side of the protruding direction of the arm part, and is inserted from the upper end of the support shaft.

4. The privacy screen device according to claim 3.

5. the weight has a hole at an upper end thereof through which the wire extending from a lower end of the support shaft of the first support portion is inserted, The wire inserted into the hole is folded back upward in the hole, and the tip end of the wire is fixed to the outer periphery of the support shaft.

4. The privacy screen device according to claim 3.

6. A loop portion is formed at a tip portion of the wire that is inserted through the hole and folded back upward, A locking groove for locking the annular portion of the wire is provided on a side surface of the support shaft, The locking groove portion is formed in an inverted U-shape on the side surface of the support shaft in a side view, and a lower end of the locking groove portion opens downward, The annular portion of the wire is engaged with the engaging groove in a state where the annular portion is immersed in the engaging groove.

6. A privacy screen device according to claim 5.

7. The weight is heavier than the weight of the movable frame, The movable frame is provided with a locking hook that protrudes from its rear side and is adapted to be locked to the shelf plate of the assembly shelf.

4. The privacy screen device according to claim 3.

8. The assembly shelf to which the screen device according to any one of claims 1 to 7 is attached.

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