JP2008286901A - Foldable screen - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foldable screen constituted so that accessories can be installed on screen cloth. <P>SOLUTION: The foldable screen is equipped with: the screen cloth 2 pulled out from a state where it is taken up like a roll against take-up energizing force when it is used and provided to be stretched in an up-and-down direction; a pantograph mechanism 3 for supporting screen cloth, arranged on the rear side of the screen cloth 2 and capable of elongating and contracting in the up-and-down direction; a lower-side case long sideways 1 equipped with a lower-side roll 11 having take-up energizing force for taking up the screen cloth 2 from its lower end side and coupled with the lower end side of the pantograph mechanism 3; and an upper-side case long sideways 10 equipped with an upper-side roll 101 having take-up energizing force for taking up the screen cloth 2 from its upper end side and coupled with the upper end side of the pantograph mechanism 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a folding screen used for projecting images of various projection devices such as a slide projector, a film projector, a video projector, a liquid crystal projector, and an OHP used in a company, office, region, or home.

  As this type of screen, a pantograph mechanism is housed in a case in which a screen cloth is wound and accommodated in a roll shape, and the screen cloth is configured so that the screen cloth can be folded and pulled out. It has been.

  In the folding screen of the above configuration, if the screen is to be elongated vertically, the pantograph mechanism also increases accordingly.However, when the screen is folded, the link of the pantograph mechanism protrudes from the left and right ends of the case. There is a problem that the design of a long and long is naturally restricted.

In view of this, a configuration in which the pantograph mechanism is configured in two upper and lower stages has been proposed as a screen that can be designed to be vertically long without being restricted. Specifically, the four links arranged in the rhombus are pivotally supported and connected to each other so as to be vertically expandable and foldable, and the lower rhombus link structure whose lower end is pivotally supported in the case; The lower rhombus link structure is an upper rhombus formed by pivotally connecting and connecting four short links arranged in a rhombus on a plane that is stepped in the front-rear direction and overlapping the upper portion of the lower rhombus link structure. A foldable screen has been proposed in which a pantograph mechanism is configured with a link structure, so that the horizontal dimension of the pantograph mechanism is suppressed and the screen can be designed to be long in the vertical direction (long in the vertical direction) (Patent Document 1). reference).
JP 2005-345660 A

  However, in the above prior art, when the screen is folded, almost all of the screen cloth is wound around the roll portion of the horizontally long case, and therefore, for example, it is not possible to adopt a configuration in which an accessory is attached to a part of the back of the screen cloth. It was. That is, such an additional function cannot be imparted to the screen cloth.

  The present invention has been made in view of such a technical background, and an object of the present invention is to provide a foldable screen capable of mounting an accessory on a screen cloth.

  In order to achieve the above object, the present invention provides the following means.

[1] A screen cloth that is pulled out against a winding attachment force during use from the stored state wound in a roll shape and stretched in the vertical direction;
A pantograph mechanism for supporting the screen cloth, which is arranged on the rear side of the screen cloth and can be expanded and contracted in the vertical direction;
A lower side long case connected to the lower end side of the pantograph mechanism, with a lower roll having a winding attachment force for winding the screen cloth from its lower end side,
An upper side long case connected to the upper end side of the pantograph mechanism, with an upper roll having a winding attachment force for winding the screen cloth from the upper end side thereof,
With
The pantograph mechanism is folded so as to follow the winding of the screen cloth, while the pantograph mechanism is configured to extend following the drawer of the screen cloth to hold the drawn state of the screen cloth. Folding screen, characterized by

[2] The pantograph mechanism is
Four links arranged in a rhombus are pivotally supported and connected, and are configured to be vertically expandable and foldable, and a lower rhombus link structure whose lower end is pivotally supported by the lower lateral case;
Four links arranged in a rhombus are pivotally supported and connected, and are configured to be vertically expandable and foldable, and an upper rhombus link structure whose upper end is pivotally supported by the upper lateral case;
The foldable screen according to the preceding item 1 comprising:

[3] The pantograph mechanism is
Four links arranged in a rhombus are pivotally supported and connected, and are configured to be vertically expandable and foldable, and a lower rhombus link structure whose lower end is pivotally supported by the lower lateral case;
Four links arranged in a rhombus are pivotally supported and connected, and are configured to be vertically expandable and foldable, and an upper rhombus link structure whose upper end is pivotally supported by the upper lateral case;
A pair of left and right lower links, which are arranged in a V shape and whose lower ends are pivoted and connected to each other, are pivoted and connected to the left and right links on the upper side of the lower rhombus link structure, respectively, and arranged in an inverted V shape. A pair of left and right upper links pivoted and connected to each other at the upper ends are pivoted and connected to the left and right links on the lower side of the upper rhombus link structure, respectively. The lower end portion of the left upper link is fixed to the first slider, the upper end portion of the right lower link and the lower end portion of the right upper link are fixed to the second slider, and both the sliders move laterally by the support portion. An interlocking mechanism that is supported in a possible manner;
The foldable screen according to the preceding item 1 comprising:

  [4] The foldable screen according to any one of items 1 to 3, wherein an appendage is attached to a non-rolling area that is not rolled in the winding state of the screen cloth.

  [5] An appendage is attached to a non-winding area that is not rolled in the winding state on the back surface of the screen cloth, and the appendage is configured to be movable back and forth with respect to the support portion. 4. The folding screen according to the item 3 above.

  In the invention of [1], since the screen cloth is wound around both the lower roll and the upper roll, in the wound state, the roll is not wound on the intermediate portion in the vertical direction of the screen cloth. An area exists, and it is possible to equip the non-winding area with an appendage. Further, since the screen cloth is wound on both the lower roll and the upper roll, the winding load is distributed to the upper and lower portions, thereby improving the durability of the winding mechanism (including the roll). .

  In the invention of [2], since the pantograph mechanism for supporting the screen cloth has a two-stage structure of the lower rhombus link structure and the upper rhombus link structure, the screen cloth can be designed to be long (vertically long) in the vertical direction, and the pantograph There is an advantage that part of the pantograph mechanism can be prevented from protruding from the left and right ends of the upper and lower horizontal cases in the folded state of the mechanism.

  In the invention of [3], since the pantograph mechanism for supporting the screen cloth has a two-stage structure of the lower rhombus link structure and the upper rhombus link structure, the screen cloth can be designed to be long (vertically long) in the vertical direction, and the pantograph There is an advantage that part of the pantograph mechanism can be prevented from protruding from the left and right ends of the upper and lower horizontal cases in the folded state of the mechanism. In addition, since the interlock mechanism that synchronizes the expansion and contraction (including folding) operations of the lower rhombus link structure and the upper rhombus link structure is provided, if the same shape and size of the lower rhombus link structure and the upper rhombus link structure are used, The upper and lower windings of the screen cloth can be made synchronous and have the same winding amount (winding speed), so that no slack or the like occurs on the screen during winding. Further, a first slider in which the upper end of the left lower link and the lower end of the left upper link are fixed, and a second slider in which the upper end of the right lower link and the lower end of the right upper link are fixed Is supported by the support portion so as to be laterally movable, and therefore, proper interlocking between the lower rhombus link structure and the upper rhombus link structure can be ensured, and there is an advantage that the screen cloth winding operation becomes smoother. .

  In the invention of [4], since an accessory is attached to the non-winding region of the screen cloth that is not rolled in the winding state, the added value of the screen is enhanced by the function of the accessory.

  In the invention of [5], since an accessory is attached to the non-winding region that is not rolled in the winding state on the back surface of the screen cloth, the added value of the screen is enhanced by the function of the accessory. In addition, since the accessory is configured to be movable back and forth with respect to the support portion, the amount of winding by the roll (winding outer diameter) is increased at the final stage of winding of the screen cloth. Even when the cloth is pulled backwards, the screen cloth with attached accessories can be moved freely to the rear accordingly, which causes the screen cloth to sag and wrinkle. Can be sufficiently prevented.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a rear view showing a folding screen according to one embodiment of the present invention, and FIG. 2 is a right side view thereof.

  1 and 2, the foldable screen includes a lower lateral case 1, an upper lateral case 10, a screen cloth 2, a pantograph mechanism 3, and elastic elastic members 7 and 7 for the screen. Yes.

  The lower lateral case 1 is a horizontally long container with an open upper surface made of, for example, metal or synthetic resin. In the lower lateral case 1, a substantially lower half from the lower end side of the screen cloth 2 is rolled. A lower roll 11 is disposed as a take-up portion that winds up around.

  On the lower end side of the screen cloth 2, a return elastic force is always applied in the winding direction by a spring (not shown). A substantially lower half of the screen cloth 2 is pulled out from the lower roll 11 against the return elastic force.

  In addition, 8 is an installation member provided on the lower surface of the lower lateral case 1 for stable installation on the floor surface.

  The upper side case 10 is a horizontally long container with an open lower surface formed of, for example, metal or synthetic resin. In the upper side case 10, a substantially upper half from the upper end side of the screen cloth 2 is rolled. An upper roll 101 is disposed as a wind-up part that winds up around.

  On the upper end side of the screen cloth 2, a return elastic force in the winding direction is always given by a spring (not shown), and this operation is performed by pulling out the screen cloth 2 in the winding accommodation state. The substantially upper half of the screen cloth 2 is pulled out from the upper roll 101 against the return elastic force.

  As shown in FIGS. 1 to 3, the pantograph mechanism 3 includes a lower rhombus link structure 4, an upper rhombus link structure 6, and an interlocking mechanism portion 5 that synchronizes expansion and contraction operations of both link structures 4 and 6. Yes.

  The lower rhombus link structure 4 is arranged so that four links 41a, 41b, 41c, 41d made of, for example, square pipes or the like constitute each side of the rhombus on the same plane.

  The lower end of the upper left link 41a and the upper end of the lower left link 41c in the lower rhombus link structure 4 are pivotally connected and connected by a connecting member 42, and the lower end of the upper right link 41b The upper end portion of the lower right link 41 d is pivotally supported and connected by a connecting member 43.

  In addition, the lower ends of the lower left and right side links 41c and 41d in the lower rhombus link structure 4 are pivotally connected and connected via a connecting member 45, and the length direction (left and right) of the bottom surface of the lower lateral case 1 is fixed. The shaft support 46 is fixed to the center of the direction.

  Further, the upper ends of the upper left and right side links 41a and 41b in the lower rhombus link structure 4 are pivotally supported and connected by a connecting member 44. The connecting member 44 extends in the length direction (left and right direction) of the support portion 9. It is fixed at the center.

  As the left connection member 42, for example, connection bodies 421 and 422 as shown in FIGS. 4A and 4B are used. That is, one connection body 421 is formed by forming a male connection piece 421c having a shaft hole 421b at the tip of the link attachment portion 421a, and the other connection body 422 is provided at the tip of the link attachment portion 422a. A female connecting piece 422c having a hole 422b is formed.

  With the male connecting piece 421c of the one connecting body 421 inserted into the fitting groove 422d of the other connecting body 422, the shaft body 423 is inserted into the shaft holes 421b and 422b, and the washer 424 is attached to the shaft body 423. By fixing, both link attaching parts 421a and 422a are located on the same plane. As a result, as shown in FIG. 4B, the upper left link 41a and the lower left link 41c are pivotally supported and connected to be rotatable on the same plane.

  In addition, the same connection bodies 421 and 422 as those shown in FIG. 4 are also used for the right connection member 43. Further, as the upper connecting member 44, a connecting body having a structure substantially similar to that of the connecting member 42 is used. Further, as the lower connecting member 45, a connecting body having a structure substantially similar to that of the connecting member 42 is used.

  Of course, the connecting members 42, 43, 44, 45 are not limited to the above-described configuration, and any appropriate one can be adopted.

  On the other hand, the upper rhombus link structure 6 has the same size as the lower rhombus link structure 4.

  That is, the upper rhombus link structure 6 is arranged such that four links 61a, 61b, 61c, 61d made of, for example, square pipes or the like constitute each side of the rhombus.

  The lower end portion of the upper left link 61a and the upper end portion of the lower left link 61c in the upper rhombus link structure 6 are pivotally supported and connected by a connecting member 62, and the lower end portion of the upper right link 61b. The upper end of the lower right link 61d is pivotally supported and connected by a connecting member 63.

  Further, the lower ends of the lower left and right side links 61c and 61d in the upper rhombus link structure 6 are pivoted and connected by a connecting member 65, and the connecting member 65 is connected in the length direction of the support portion 9 ( It is fixed at the center in the horizontal direction.

  Further, the upper ends of the upper left and right side links 61 a and 61 b are pivotally supported and connected by a connecting member 64 and are fixed to the central portion of the upper surface of the upper lateral case 10 in the length direction (left and right direction). The shaft support 66 is connected.

  As the connecting members 62 and 63, the same connecting bodies 421 and 422 as those shown in FIG. 4 are used. Further, as the upper connection member 64, a connection body having a structure substantially similar to that of the connection member 42 is used. Further, as the lower connecting member 65, a connecting body having a structure substantially similar to that of the connecting member 42 is used.

  The interlocking mechanism 5 synchronizes the operations of the lower rhombus link structure 4 and the upper rhombus link structure 6 and is arranged on the front side of these rhombus link structures 4, 6. Of course, the interlocking mechanism 5 may be arranged on the back side of the rhombus link structures 4 and 6.

  The interlock mechanism 5 includes a pair of left and right interlocking lower links 51c and 51d arranged in a V shape, a pair of left and right interlocking upper links 51a and 51b arranged in an inverted V shape, and a first slider. 21, a second slider 22, and a support portion 9 that supports both the sliders 21 and 22 so as to be slidable in the horizontal direction.

  The pair of left and right lower links 51c and 51d are arranged in a V shape, and lower ends of the lower links 51c and 51d are pivotally connected and connected by a connecting member 53. These lower links 51c and 51d are respectively lower rhombus link structures 4. Are pivotally connected to and connected to the left and right links 41a and 41b. That is, the central portions of the lower links 51c and 51d are pivotally connected to the central portions of the left and right links 41a and 41b on the upper side of the lower rhombus link structure 4 by pins 512 and 512, respectively.

  The pair of left and right upper links 51a and 51b are arranged in an inverted V shape, and their upper ends are pivotally connected and connected by a connecting member 52. These upper links 51a and 51b are respectively connected to the upper rhombus link structure 6. The lower left and right links 61c and 61d are pivotally supported and connected. That is, the central portions of the upper links 51a and 51b are pivotally connected to the central portions of the left and right links 61c and 61d on the lower side of the upper rhombus link structure 6 by pins 511 and 511, respectively.

  As the connection members 52 and 53, a connection body having a structure substantially similar to that of the connection member 42 is used.

  The lower end portion 54 of the left upper link 51a and the upper end portion 56 of the left lower link 51c in the interlocking mechanism portion 5 are provided on the back surface of the first slider 21 supported by the support portion 9 so as to be movable in the left-right direction. It is pivotally supported and connected to the upper and lower parts, respectively (see FIGS. 3 and 5).

  The lower end portion 55 of the right upper link 51b and the upper end portion 57 of the right lower link 51c in the interlocking mechanism portion 5 are provided on the rear surface of the second slider 22 supported by the support portion 9 so as to be movable in the left-right direction. It is pivotally supported and connected to the upper and lower parts, respectively (see FIGS. 3 and 5).

  By providing such an interlocking mechanism portion 5, the extension operation of the upper rhombus link 6 and the extension operation of the lower rhombus link 4 are synchronized when the drawing operation on the screen cloth 2 is performed. The folding operation of the upper rhombus link 6 and the folding operation of the lower rhombus link 4 are also synchronized when the storage operation for the screen cloth 2 is performed. That is, the extending and folding operations of the upper rhombus link 6 are transmitted to the left and right upper links 51a and 51b of the inverted V-shape in the interlocking mechanism portion 5, and the lower end portions 54 and 55 are respectively connected to the left and right sliders 21 and 22 respectively. The lower rhombus link 4 is extended and folded while being guided to the left and right by the V-shaped left and right lower links 51c and 51d in the interlock mechanism 5. Are respectively guided in the left and right sliders 21 and 22 and shifted in the left-right direction. The movement of the upper rhombus link 6 and the operation of the lower rhombus link 4 are synchronized by the movement of the left and right sliders 21 and 22 at this time. Thereby, the amount of winding and the amount of drawing out of the upper half side and the lower half side of the screen cloth 2 can be made equal, so that the screen cloth 2 does not sag during winding, The screen cloth 2 is not wrinkled.

  As shown in FIGS. 5 and 6, the support portion 9 includes a substrate 91 disposed on the front side of the interlocking mechanism portion 5, and an attachment holding base 93 provided on the front side of the substrate 91. I have.

  The substrate 91 is formed in a horizontally long shape along the left-right direction, and the first slider 21 and the second slider 22 that are spaced apart in the left-right direction (the arrow direction in FIG. 5) are arranged on the back side of the substrate 91. The horizontally long guide portions 92 and 92 that are slidably supported in the direction are fixed. The accessory holding base 93 is formed in a thin box shape with the front side open.

  In the winding state in which the screen cloth 2 is wound around the lower roll 11 in the lower lateral case 1 and the upper roll 101 in the upper lateral case 10, as shown in FIG. In this embodiment, the accessory 94 is attached and fixed to the non-winding region 2a. Further, a core 96 having a substantially thin box shape is joined and fixed to the back surface of the accessory 94 via a double-sided adhesive sheet 95, and the core 96 is attached to the front surface of the accessory holding base 93. It is inserted and arranged from the open side, and is held so as to be movable back and forth with respect to the holding table 93, whereby the accessory 94 is held so as to be movable back and forth with respect to the holding table 93 (FIG. 6). reference).

  As the winding amount (winding outer diameter) of the screen cloth 2 between the upper and lower rolls 101 and 11 increases, the screen cloth 2 tends to shift backward, that is, the accessory 94 shifts backward. In order to allow this (the state of the two-dot chain line in FIG. 8), the holding base 93 supports (accommodates) the core 96 joined and fixed to the appendage 94 so as to be movable back and forth. ). The holding base 93 is provided with springs 93a and 93a at the upper and lower positions in order to urge the attachment 94 to return elastic force forward.

  As shown in FIG. 1, the elastic elastic members 7 and 7 for the screen are pivotally connected and connected to the lower side case 1 via pins 711 and 711, respectively. However, the lower rhombus link structure 4 is pivotally supported and connected to the intermediate portions of the lower left and right side links 41c and 41d via pins 712 and 712, respectively.

  Each elastic elastic member 7 for screen has an elastic pipe 71, and a spring (not shown) is incorporated in the inside thereof in a contracted state. The screen cloth 2 can be easily pulled up by the upward spring force of the spring.

  Next, a procedure for using the folding screen will be described.

  When the screen cloth 2 is stored in the cases 1 and 10 for carrying or storing, the pantograph mechanism 3 starts to be folded by the winding urging force of the upper roll 101 and the lower roll 11, that is, FIG. ), The upper rhombus link structure 6 and the lower rhombus link structure 4 in the pantograph mechanism 3 begin to be folded synchronously via the interlocking mechanism portion 5, and after the state shown in FIG. 7B, the whole is completely folded. And become flat.

  At this time, the lower half of the screen cloth 2 is wound around the lower roll 11 in the lower lateral case 1 from the lower end side, while the upper half is wound in the upper lateral case 10 from the upper end side. The upper roll 101 is wound into a roll shape. Further, as shown in FIG. 6, the lower rhombus link structure 4, the upper rhombus link structure 6, the interlocking mechanism portion 5, and the like in the pantograph mechanism 3 are folded so that the pantograph mechanism 3 and the screen cloth 2 are connected to the upper side case 10. It is accommodated in the space between the lower lateral case 1.

  When using the folding screen, when the lower lateral case 1 is placed on the installation surface such as the floor via the installation member 8, for example, when the upper lateral case 10 is grasped and pulled up, the folded state is obtained. Pantograph mechanism 3 rises upward in accordance with the synchronous extension operation of upper rhombus link structure 6 and lower rhombus link structure 4 by the action of interlocking function section 5, and lower side in lower side case 1. While the substantially lower half of the screen cloth 2 wound around the roll 11 is drawn upward, the substantially upper half of the screen cloth 2 wound around the upper roll 101 in the upper lateral case 10 The screen cloth 2 is pulled out downward, whereby the entire screen cloth 2 is stretched up and down.

  When the screen cloth 2 is pulled up to the highest position, the upper rhombus link structure 6 and the lower rhombus link structure 4 stand up completely as shown in FIGS. 1 and 2, and the screen cloth 2 is held in its pulled out state. Is done.

  According to the folding screen according to the above configuration, the screen cloth 2 is wound around both the lower roll 11 and the upper roll 101. In the embodiment, a non-winding region 2a that is not rolled is present in a substantially central portion in the vertical direction), and an accessory can be arranged in the non-winding region 2a. In the embodiment, an appendage 94 is attached to the non-winding region 2a (see FIG. 6).

  In addition, since the pantograph mechanism 3 has a two-stage configuration including a lower rhombus link structure 4 and an upper rhombus link structure 6, a part of the pantograph mechanism 3 is folded from the left and right ends of the upper and lower horizontal cases 10 and 1. The uppermost level position of the screen cloth 2 can be set high (ie, it can be designed to be long in the vertical direction) without protruding.

  Further, since the screen cloth 2 is configured to be wound not only on the lower roll 11 in the lower lateral case 1 but also on the upper roll 101 in the upper lateral case 10, the screen cloth for the rolls 11, 101 is arranged. The winding load of 2 is distributed to the upper and lower parts, whereby the durability of the winding mechanism including the rolls 11 and 101 can be improved.

  In addition, since the lower rhombus link structure 4 and the upper rhombus link structure 6 in the pantograph mechanism 3 have the same shape and the same size formed by the links having the same length, the lower roll 11 and the upper roll 101 wind the screen cloth 2. The take-up load is almost equally divided into two so that the load is not biased, and the screen cloth 2 can be wound up and down synchronously with the same winding amount (winding speed). The cloth 2 will not sag.

  Furthermore, the upper end 56 of the left lower link 51c and the lower end 54 of the left upper link 51a are fixed, the upper end 57 of the right lower link 51d, and the lower end of the right upper link 51b. Since the second slider 22 to which the portion 55 is fixed is supported by the guide portions 92 and 92 of the support portion 9 so as to be laterally movable, the operation of the lower rhombus link structure 4 and the operation of the upper rhombus link structure 6 are performed. It is performed stably in synchronization with each other, and the screen cloth 2 is less likely to be loosened when the pantograph mechanism 3 is folded.

  By the way, when the screen cloth 2 is drawn out and rolled up by the upper and lower rolls 101 and 11, the winding diameter (winding amount) of the screen cloth 2 in these rolls 101 and 11 gradually increases. Along with this, the screen cloth 2 tends to shift to the rear side. In this case, if the accessory 94 arranged at the center in the vertical direction of the screen cloth 2 is in a fixed state with respect to the holding base 93, the backward transition of the central part in the vertical direction of the screen cloth 2 is an accessory. As a result, there is a possibility that slack or wrinkles may be formed at the central portion in the vertical direction of the screen cloth 2 in the winding state.

  On the other hand, in the present embodiment, the core 96 joined and fixed to the attachment 94 is held so as to be movable in the front-rear direction with respect to the holding base 93, that is, the attachment 94 is attached to the holding base 93. Therefore, the winding diameter (winding amount) of the upper and lower rollers 101 and 10 in the screen cloth 2 is gradually increased, and the screen cloth 2 tends to move rearward. In this case, the attachment 94 is moved rearward against the return spring force of the return spring piece 93a in the holding base 93 as shown by a two-dot chain line in FIG. At this time, it is possible to sufficiently prevent the slack and wrinkles from being formed at the central portion of the screen cloth 2 in the vertical direction. When the screen cloth 2 is pulled out from the upper and lower rollers 101 and 11 and the winding diameter (winding amount) of the screen cloth 2 in these rolls 101 and 11 is gradually reduced, the screen cloth 2 is moved forward. At this time, however, the accessory 94 also moves forward by following the screen cloth 2 while receiving the return spring force of the return spring piece 93a.

  Note that the pantograph mechanism 3 is not particularly limited to the two-stage configuration of the upper and lower rhombus link structures 6 and 4 as in the above embodiment, and may be a one-stage configuration, or three or more stages. It may be configured as follows.

  As the pantograph mechanism 3, the structure disclosed in Japanese Patent Application No. 2006-229250, that is, the left and right side links on the upper side of the lower rhombus link structure are extended upward beyond the intersection, and the upper rhombus links A structure in which the left and right side links on the lower side are configured, or the structure disclosed in Japanese Patent Application No. 2006-261871, that is, the lower end of the upper rhombus link structure is pivotally connected to the upper end of the lower rhombus link structure. It is also possible to adopt a configuration that has been made.

It is a rear view which shows the folding screen which concerns on one Embodiment of this invention. It is a right view which similarly shows a folding screen. It is the perspective view which looked at the pantograph mechanism in the same folding screen from the back side. (A) is a disassembled perspective view which shows the connection member used in order to pivotally support and link links, (B) is a side view of the connection member of use condition similarly. It is a partial exploded perspective view which shows the slider and support part of an interlocking mechanism part, and its vicinity from the back side. It is a sectional side view which shows the foldable screen of FIG. 1 in the folding storage state. (A) is a figure which shows the state in the middle of folding of a pantograph mechanism, (B) is a figure which shows the state just before complete folding of a pantograph mechanism. It is explanatory drawing of the operation | movement which the accessory attached to the screen cloth moves back with respect to a support part according to a screen cloth being wound up by the roll.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Lower side long case 2 ... Screen cloth 2a ... Non-winding area | region in screen cloth 3 ... Pantograph mechanism 4 ... Lower rhombus link structure 5 ... Interlocking mechanism part 6 ... Upper rhombus link structure 9 ... Support part 10 ... Upper side long case 11 ... Lower roll (winding part)
21 ... 1st slider 22 ... 2nd slider 41a-d ... Link (of lower rhombus link structure)
61a-d ... Link (of upper rhombus link structure)
51a, 51b ... Upper link of interlocking mechanism (upper link for interlocking)
51c, 51d ... Lower link of interlocking mechanism section (lower link for interlocking)
54, 55 ... Lower end of upper link (lower end of upper link for interlocking)
56, 57 ... Upper end of the lower link (upper end of the interlocking lower link)
94 ... Accessories 101 ... Upper roll (winding part)

Claims (5)

A screen cloth that is pulled out against the winding mounting force during use from the storage state wound in a roll shape and stretched in the vertical direction;
A pantograph mechanism for supporting the screen cloth, which is arranged on the rear side of the screen cloth and can be expanded and contracted in the vertical direction;
A lower side long case connected to the lower end side of the pantograph mechanism, with a lower roll having a winding attachment force for winding the screen cloth from its lower end side,
An upper side long case connected to the upper end side of the pantograph mechanism, with an upper roll having a winding attachment force for winding the screen cloth from the upper end side thereof,
With
The pantograph mechanism is folded so as to follow the winding of the screen cloth, while the pantograph mechanism is configured to extend following the drawer of the screen cloth to hold the drawn state of the screen cloth. Folding screen, characterized by The pantograph mechanism is
Four links arranged in a rhombus are pivotally supported and connected, and are configured to be vertically expandable and foldable, and a lower rhombus link structure whose lower end is pivotally supported by the lower lateral case;
Four links arranged in a rhombus are pivotally supported and connected, and are configured to be vertically expandable and foldable, and an upper rhombus link structure whose upper end is pivotally supported by the upper lateral case;
The foldable screen according to claim 1, comprising: The pantograph mechanism is
Four links arranged in a rhombus are pivotally supported and connected, and are configured to be vertically expandable and foldable, and a lower rhombus link structure whose lower end is pivotally supported by the lower lateral case;
Four links arranged in a rhombus are pivotally supported and connected, and are configured to be vertically expandable and foldable, and an upper rhombus link structure whose upper end is pivotally supported by the upper lateral case;
A pair of left and right lower links, which are arranged in a V shape and whose lower ends are pivoted and connected to each other, are pivoted and connected to the left and right links on the upper side of the lower rhombus link structure, respectively, and arranged in an inverted V shape. A pair of left and right upper links pivoted and connected to each other at the upper ends are pivoted and connected to the left and right links on the lower side of the upper rhombus link structure, respectively. The lower end portion of the left upper link is fixed to the first slider, the upper end portion of the right lower link and the lower end portion of the right upper link are fixed to the second slider, and both the sliders move laterally by the support portion. An interlocking mechanism that is supported in a possible manner;
The foldable screen according to claim 1, comprising:   The foldable screen according to any one of claims 1 to 3, wherein an appendage is attached to a non-winding region that is not rolled in the winding state of the screen cloth.   The accessory is attached to a non-winding region that is not rolled in the winding state on the back surface of the screen cloth, and the accessory is configured to be movable back and forth with respect to the support portion. Folding screen as described in

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