JP2020051223A - screen - Google Patents

Abstract

To provide a screen capable of changing an orientation of a leg body relatively freely and of solving a problem that there are some cases in which the leg body is obstacle depending on the arrangement and it is difficult to be set at a preferred position.SOLUTION: A configuration comprising a screen body 1, a leg body 62 installed in this screen body 1 and rotatable from an usage position (U) to be in an orthogonal orientation at least relative to the screen body 1 to a storage position (K) to be in a parallel orientation and a moderate mechanism 9 for stopping this leg body 62 moderately not only at the usage position (U) and the storage position (K) but also at a plurality of intermediate positions (N1) - (N5).SELECTED DRAWING: Figure 15

Description

  The present invention relates to a screen suitably used for partitioning a space in a lounge or office.

  Conventionally, as this type of screen, a screen provided with a screen main body that partitions a space and a fall prevention leg attached to a lower end of the screen main body is known (for example, see Patent Document 1).

  However, in the conventional device, since the legs are attached to the screen main body in a fixed posture, the legs may become an obstacle depending on the arrangement, and it may be difficult to install the legs at a desired position.

Utility Model Registration No. 3091152

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a screen that can change a posture of a leg relatively freely and can solve the above-described problem. .

  The screen according to the first aspect of the present invention is a screen main body, and a leg provided on the screen main body and capable of pivoting at least from a use position that is orthogonal to the screen main body to a storage position that is parallel to the screen main body. And a moderation mechanism for stopping the legs not only at the use position and the storage position, but also at a plurality of intermediate positions during the turning thereof.

  According to a second aspect of the present invention, there is provided the screen according to the first aspect, wherein the detent mechanism causes the detent to relatively advance and retreat to a plurality of detent recesses to selectively engage the detent. And an elastic body that elastically urges the detent in the direction of the depressed concave portion, and has an elastic washer that can be elastically deformed in a thickness direction.

  The screen according to the third aspect of the present invention is the screen according to the second aspect, wherein the moderation mechanism is configured such that the moderation recesses are arranged adjacently at a constant pitch in a circumferential direction around a center of rotation of the leg. One member and a second member having the moderator adjacently arranged at a constant pitch in the circumferential direction around the center of rotation, wherein the first member is provided between the screen body and the leg. Either one is provided with the second member on the other.

  According to a fourth aspect of the present invention, in the screen according to the third aspect, the screen main body has a frame structure, and an axis of the lower frame forming a lower edge portion of the screen main body coincides with the center of rotation. And a support shaft provided on the leg is rotatably and slidably inserted in the axial direction in the bearing portion, and the bearing portion also serves as the first member. And the second member is provided around the support shaft on the upper surface of the leg.

  According to a fifth aspect of the present invention, there is provided the screen according to the fourth aspect, wherein each of the opposed end faces of the first member and the second member has a shape which undulates in a circumferential direction at a constant pitch. The valley portion of the wave of the first member is set as the moderation concave portion, and the crest portion of the wave of the second member is set as the moderator.

  The screen according to the invention according to claim 6 is the screen according to claim 5, wherein a retaining flange is provided at an upper end portion of the support shaft, and the elastic washer is provided between the retaining flange and the lower frame. The moderator is interposed in a state of being wound around a support shaft, and the support shaft is pulled up together with the leg by elastic repulsion of the elastic washer, so that the moderator is elastically contacted with the moderation recess. .

  A screen according to a seventh aspect of the present invention is the screen according to the sixth aspect, wherein the height dimension of the wave formed on the opposed end faces of the first member and the second member is in the thickness direction of the elastic washer. Is set to a value corresponding to the elastic deformation dimension of.

  ADVANTAGE OF THE INVENTION According to this invention, the attitude | position of a leg can be changed comparatively freely, the leg | foot may obstruct | occlude depending on arrangement | positioning, and the trouble that it may become difficult to install in a desired position may arise. It is possible to provide a screen that can be eliminated.

FIG. 1 is a perspective view showing a screen system according to an embodiment of the present invention. FIG. 2 is a front view showing the screen system according to the embodiment. FIG. 2 is an exploded perspective view showing one screen according to the embodiment. 3. The principal part expanded sectional view along the AA line in FIG. FIG. 3 is an exploded perspective view showing a screen main body of one screen according to the embodiment. The C section enlarged view in FIG. The enlarged view of the D section in FIG. The X section enlarged view in FIG. FIG. 3 is an exploded perspective view showing a screen main body of the other screen according to the embodiment. FIG. 3 is an exploded perspective view showing the vicinity of a leg according to the embodiment. The principal part expanded sectional view along the EE line in FIG. The enlarged view of the G section in FIG. The figure which shows the 1st member and 2nd member which concern on the same embodiment. The figure which shows the elastic washer which concerns on the embodiment. The bottom view for explaining operation of the leg and the moderating mechanism concerning the embodiment. Operation | movement explanatory drawing for demonstrating operation | movement of the moderation mechanism which concerns on the embodiment.

<< one embodiment >>
One embodiment of the present invention will be described with reference to FIGS.

  In this embodiment, the present invention is applied to a screen system SS in which two screens S1 are connected.

  As shown in FIGS. 1 and 2, the screen system SS includes two screens S1 and S2 provided with magnets M1 and M2 at side edges, and the screens S1 and S2 are connected to the magnet M1. , M2 so that the screens S1, S2 have a basic magnet M1 at least at a common height position H at the side edge. I have. The screens S1 and S2 of this embodiment are of a type having no magnet above the basic magnet M1. The two screens S1 and S2 each have a lower magnet M2 at a position shifted downward by a fixed downward distance Z from the basic magnet M1. Hereinafter, each of the screens S1 and S2 will be described.

<One screen S1>
One screen S1 is of a straight type having a linear shape in a plan view, and as shown in FIGS. 1 to 4, forms a frame-shaped screen main body 1 and a pair arranged on both sides of the screen main body 1. It is provided with exterior materials 2A and 2B. As shown in FIG. 8, each of the surface covering materials 2A and 2B is provided with a light-transmissive portion 2x that hardly transmits light and a light-transmitting portion 2y that easily transmits light, which are randomly mixed. That is, as shown in FIG. 3 and FIG. 4, the screen main body 1 includes a hollow area CA inside frames 3 to 6 arranged in a frame shape, and both of the facing materials 2 </ b> A and 2 </ b> B It is attached to the frames 3 to 6 so as to cover the area CA. As shown in FIGS. 1 to 4, in each of the surface covering materials 2A and 2B, a portion 21 corresponding to the frames 3 to 6 is configured by the light-transmissive portion 2x, and a portion 22 corresponding to the cavity region CA is difficult to transmit. The light section 2x and the light transmitting section 2y are randomly mixed. Hereinafter, a specific description will be given.

  As shown in FIGS. 1 to 3 and 5, the screen body 1 includes right and left frames 3 and 4, an upper frame 5 that connects upper ends of the right and left frames 3 and 4, and a right and left frames 3 and 4. , And a lower frame 6 connecting the lower ends of the left frames 3 and 4. The lower frame 6 is provided with a pair of right and left legs 62 as a grounding body. I have. Each of the frames 3 to 6 is made of a pipe material having a circular cross section, and specifically, is made of a nonmagnetic aluminum pipe material. The right and left frames 3 and 4 are in an upright posture, and screw insertion holes 3x, 4x, 3y and 4y are provided on the cavity area CA side near the upper ends 3a and 4a and near the lower ends 3b and 4b, respectively. ing. The upper frame 5 has a horizontal posture, and has hanging parts 51 extending downward at both right and left ends, and screws are respectively inserted into the cavity area CA near the lower end 51a of the hanging parts 51. A hole 51x is provided. The lower frame 6 has a horizontal posture, and has upright portions 61 extending upward at both right and left ends. Screws are respectively inserted into the hollow area CA near the upper ends 61a of the upright portions 61. A hole 61x is provided.

  Then, as shown in FIGS. 5 to 7, the upper ends 3a, 4a of the right and left frames 3, 4 and the lower end 51a of the hanging portion 51 of the upper frame 5 are connected by the upper frame connecting member 7A. As shown in FIG. 5, the lower ends 3b and 4b of the right and left frames 3 and 4 and the upper end 61a of the upright portion 61 of the lower frame 6 are connected by a lower frame connecting member 7B. As shown in FIGS. 5 to 7, in the upper frame connecting member 7 </ b> A, the lower half is fitted to the upper ends of the right and left frames 3, 4, and the upper half is upper. It is a rod-shaped member fitted to the lower end of the hanging portion 51 of the frame 5 and is made of a nonmagnetic synthetic resin. Female screw holes 71 corresponding to the screw insertion holes 3x, 4x of the right and left frames 3, 4 are formed in the lower half of the upper frame connecting member 7A. A female screw hole 71 corresponding to the screw insertion hole 51x provided in the hanging portion 51 of the upper frame is formed in the portion. The right and left frames 3, 4 and the upper frame 5 are rigidly connected by screwing the connection screws v from the screw insertion holes 3x, 4x, 51x into the corresponding female screw holes 71, respectively, and tightening them. It is supposed to be. Reference numeral 73 denotes a positioning projection for positioning the upper frame connecting member 7A to the frames 3 and 4 during assembly. A magnet holder 72 is formed at the lower end of the upper frame connecting member 7A forming a right and left pair, and extends into the corresponding right and left frames 3 and 4, respectively. More specifically, a magnet accommodating chamber 72a for accommodating a reference magnet M1 is formed between an inner peripheral surface 721a) of a holder main body 721 to be described later and the inner peripheral surfaces 3s, 4s of the frame. On the other hand, the lower frame connecting member 7B is obtained by inverting the upper frame connecting member 7A described above up and down, and the same or corresponding portions are denoted by the same reference numerals and description thereof is omitted. Thus, the lower magnet M2 is provided between the inner surface of the magnet holder 72 of the lower frame connecting member 7B (more specifically, the inner peripheral surface 721a of the holder main body 721 described later) and the inner peripheral surfaces 3s, 4s of the frame. Is formed in the magnet accommodating chamber 72a for accommodating.

  Here, the mounting structure of the magnets M1 and M2 will be described in relation to the magnet housing chamber 72a. As shown in FIGS. 4 to 7, the screen S1 is provided with a magnet housing chamber 72a at an edge portion to which another screen S2 is to be connected, and the connecting magnets M1 and M2 can float in the magnet housing chamber 72a. It is housed in. At least a part of the inner wall surface of the magnet housing chamber 72a (the inner peripheral surface 721a of the holder main body 721) is cylindrical, and the magnets M1 and M2 housed in the magnet housing chamber 72a have a cylindrical inner wall surface. It has a prismatic shape that allows two adjacent corners M1a and M2a to make line contact at the same time. The magnets M1 and M2 of this embodiment are quadrangular prisms having four corners, and a portion located between a pair of adjacent corners is an N pole, and the other adjacent pair is located between the corners. The portion is magnetized so as to be an S pole. Since the lower magnet M2 has exactly the same shape as the basic magnet, the form of line contact between the corner M2a and the inner wall surface of the magnet housing chamber 72a is omitted.

  The screen S1 has a plurality of frames connected in a frame shape as described above, that is, right and left frames 3 and 4, an upper frame 5, and a lower frame 6, and the right and left frames 3 , 4 are provided with a magnet housing chamber 72a. The screen S1 of this embodiment has a pair of right and left frame connecting members 7A which are fitted into the right and left frames 3 and 4 and the upper frame 5 which are abutted with each other, and uses these frame connecting members 7A. Thus, a magnet housing chamber 72a for housing the basic magnet M1 is formed. The screen S1 has a pair of right and left frame connecting members 7B which are fitted in the right and left frames 3 and 4 and the lower frame 6 which are abutted with each other, and utilizes these frame connecting members 7B. A magnet housing chamber 72a for housing the lower magnet M2 is formed. The frames 3 to 6 are made of a non-magnetic pipe material having a circular cross section as described above, and the inner peripheral surfaces 3 s and 4 s of the right and left frames 3 and 4 are provided with the magnet housings. It forms part of a cylindrical inner wall surface of the chamber 72a.

  Explaining the structure described above from a different point of view, this screen S1 includes a magnet holder 72 made of a non-magnetic material, and connecting magnets M1 and M2 held by the magnet holder 72. , M2 are attached to the edge of the screen main body 1. More specifically, the screen main body 1 has a frame structure mainly composed of the frames 3 to 6, and the right and left frames 3 and 4 constituting the edges of the screen main body 1 are provided with magnet holders 72. It is charged together with the magnets M1 and M2. That is, the screen main body 1 has a frame structure in which the plurality of frames 3 to 6 are connected via the frame connecting members 7A and 7B, and the magnet holder 72 is provided integrally with the frame connecting members 7A and 7B. ing. Specifically, the magnet holder 72 includes a holder main body 721 projecting from the end faces of the frame connecting members 7A and 7B and having a partial cylindrical shape in contact with a part of the inner peripheral surfaces of the frames 3 and 4; An end plate 722 provided at the protruding end of 721 to regulate the vertical movement of the magnets M1 and M2 in cooperation with the frame connecting members 7A and 7B, and is integrated with the frame connecting members 7A and 7B by synthetic resin. It is molded into. The magnet accommodating chamber 72a is formed by a part of the inner peripheral surfaces 3s and 4s of the frames 3 and 4 having a partial arc shape and an inner peripheral surface 721a of the holder main body 721 facing the inner peripheral surfaces 3s and 4s. The upper and lower ends of the magnet accommodating chamber 72a are closed by the frame connecting members 7A and 7B and the end plate 722 of the magnet holder 72.

  The following describes the outer covering materials 2A and 2B mounted on the screen main body 1 described above. The front facing material 2A stretched on one surface side of the screen main body 1 and the back facing material 2B stretched on the other surface side are continuous outside the frames 3 to 6 so as to form a bag shape as a whole. It is. That is, the front facing material 2A and the back facing material 2B are knitted, for example, as a bag-shaped knit having an upper edge and left and right side edges connected to each other, cover the screen body 1 from above, and connect the lower edges. Thus, it is attached to the outside of the frames 3 to 6. The surface covering materials 2A and 2B of this embodiment are knits made using the yarn material 2s, and the hardly light-transmitting portions 2x have a stitch-like structure in which the yarn material 2s is relatively densely knitted. At the same time, the light transmitting portion 2y has a hole shape in which the thread material 2s does not exist. FIG. 8 shows an enlarged view of only the front cover material 2A existing in the region X in FIG. That is, in the front cover material 2A, a large number of hole-shaped light transmitting portions 2y are randomly scattered between the continuous hard light transmitting portions 2x forming a stitch structure. The back surface portion 2B also has a configuration similar to the front surface portion 2A, and when viewed from a distance, they both give the same impression, but the light transmitting portion 2y is randomly formed with respect to the hard light transmitting portion 2x. Since they are arranged, the front and back surface layer portions 2A and 2B have completely different pattern shapes when compared finely and accurately.

  One screen described above is, as shown in FIGS. 10 to 16, the screen main body 1 described above and a use position (U) provided on the screen main body 1 and having at least an orthogonal posture with respect to the screen main body 1. A leg 62 that can be turned horizontally to a storage position (K) in a parallel posture, and a plurality of intermediate positions in the course of turning not only the use position (U) and the storage position (K) but also the legs 62 In (N1) to (N5), a moderation mechanism 9 for stopping moderation is also provided.

  As shown in FIGS. 12 to 16, the detent mechanism 9 relatively moves the detent 9b relatively to a plurality of detent recesses 9a to selectively engage with the detent 9b. An elastic washer 90 as shown in FIGS. 10 to 12 is provided as an elastic body that elastically urges in the direction of the moderation concave portion 9a. In this embodiment, a so-called elastic washer 90 as shown in FIG. A metal thing called a spring washer is used. More specifically, as shown in FIGS. 11 to 13, the moderation mechanism 9 is a first mode in which moderation recesses 9 a are arranged adjacent to each other at a constant pitch q in the circumferential direction around the turning center 62 c of the leg 62. A member 91 and a second member 92 in which a moderator 9b is arranged adjacent to the center of rotation 62c at a constant pitch q in the circumferential direction, and the first member 91 includes the screen main body 1 and the legs. 62, a second member 92 is provided on the other. In this embodiment, as shown in FIGS. 12 and 13, the lower frame 6 constituting the lower edge of the screen main body 1 has the shaft center 93c aligned with the turning center 62c of the leg 6. A portion 93 is provided, and a support shaft 94 provided on the leg 62 is penetrated through the bearing portion 93 so as to be rotatable and slidable in the direction of the axis 94c. A second member 92 is provided around the support shaft 94 on the upper surface of the leg body 62 while serving as the second member 92. The axis 94c of the support shaft 94 is aligned with the turning center 62c of the leg 62.

  More specifically, as shown in FIG. 13, the first member 91 is a thick cylindrical body having a through hole 91a through which the support shaft 94 is rotatably and slidably penetrated. 12, the axis 91a1 of the through hole 91a is aligned with the turning center 62c of the leg 62 and is rigidly connected to the lower surface of the lower frame 6 by welding or the like. As shown in FIG. 11, a shaft insertion hole 6x is formed in a portion of the lower frame 6 corresponding to the through hole 91a. Note that the first member 91 may be configured not to be rigidly connected to the lower surface of the lower frame 6, but to perform the slippage prevention using only the elastic force of the elastic washer 90. On the other hand, as shown in FIG. 13, the second member 92 is a thick cylindrical body having a fitting hole 92a for fitting the lower end of the support shaft 94, and as shown in FIG. A pair of positioning projections 921 are provided at positions, and the positioning projections 921 are fitted to positioning holes 62x provided in the leg 62 and attached to the upper surface of the leg 62. The leg body 62 is a long and thin metal plate having a ground portion 621 such as a silicon rubber sheet as shown in FIG. 15 on the lower surface at both ends. A female screw hole 62y as shown in FIG. As shown in FIG. 11, a positioning hole 62x into which the positioning protrusion 921 of the second member fits is formed on both sides of the female screw hole 62y. I have. As shown in FIGS. 10 to 12, the support shaft 94 includes a sleeve-shaped support body 941 having a cylindrical shape and a bolt 942 inserted into a hollow portion of the support body 941 from above. The lower end of the spindle main body 941 is abutted against the upper surface of the leg 62 in a state fitted to the second member 92. Then, as shown in FIG. 11, the support shaft 94 is fixed to the leg 62 by screwing the tip of the bolt 942 into the female screw hole 62 y of the leg 62.

  An example of a procedure for assembling the leg 62 to the lower frame 6 will be described below. As shown in FIGS. 10 to 12, a bolt 942 is inserted through the spindle main body 941, and an upper resin washer 943, an upper flat washer 944, an elastic washer 90, The flat washer 945 on the side and the resin washer 946 on the lower side are fitted to each other. Then, the lower end side of the spindle main body 941 is made to penetrate the first member 91 also serving as the bearing member 93, and the penetrating end is fitted to the second member 92 of the leg 62. Then, the distal end of the bolt 941 is screwed into the female screw hole 62y of the leg 62 and tightened to complete the assembly. This procedure is an example, and the assembly may be performed in an appropriate order according to the type of the assembly jig, the assembly posture, and the like.

  In this assembled state, as shown mainly in FIG. 11, the head 942a of the bolt 942 functioning as the retaining flange 95 is located at the upper end of the support shaft 94. 6, the elastic washer 90 is interposed in a state wound around the support shaft 94. Therefore, the support shaft 94 is pulled up together with the leg 62 by the elastic repulsive force in the thickness direction of the elastic washer 90, and the moderator 9 b provided on the second member 92 is elastically contacted with the moderation recess 9 a provided on the first member 91. State.

  As shown in FIG. 13, each end face of the first member 91 and the second member 92 has a shape that undulates in the circumferential direction at a constant pitch q. Of the wave 92w of the second member 92 is a moderator 9b. The height h1 of the waves 91w and 92w formed on the opposed end faces of the first member 91 and the second member 92 is set to a value corresponding to the elastic deformation dimension h0 of the elastic washer 90 in the thickness direction. ing. In this embodiment, since 24 moderation concave portions 9a are arranged adjacently in the circumferential direction at a pitch q of 15 degrees, the legs 62 are in a posture orthogonal to the screen main body 1 as shown in FIG. A plurality of intermediate positions (N1) to (N5) in the course of turning as well as a storage position (K) that is in a parallel posture from the use position (U), and in this embodiment, five intermediate positions (N1) to (N5). It is possible to stop each mode.

  On the other hand, the moderator 9b provided on the second member 92 may be theoretically provided at one location, preferably at four locations having phases different from each other by 90 degrees, but in this embodiment, the moderation recess 9a is provided. Are provided at the same pitch q as the same number. Two pairs of the legs 62 described above are provided on the screen main body 1 so as to form a left and right pair.

  Next, the operation of the moderation mechanism 9 will be described. FIG. 16 is a schematic diagram showing a wave 91w of the first member 91 and a wave 92w of the second member 92 developed on a plane, and FIG. 16A is a schematic diagram showing the waves 91w and 92w in order to clearly show the waves 91w and 92w. The first member 91 and the second member 92 are drawn apart from each other. FIG. 8B shows a state in which the wave 91w of the first member 91 and the wave 92w of the second member 92 mesh with each other, and corresponds to an actual assembly completed state. That is, in this state, the moderator 9b corresponding to each moderation recess 9a is engaged, and the leg 62 is stopped at the moderation. When an operating force FF in the turning direction is applied to the leg 62 from this state, the specific moderator 9b1 fitted in the specific moderation recess 9a1 is guided by the slope of the wave 91w of the first member 91, and FIG. As shown in (c), when the wave abuts on the peak of the same wave 91w and goes a little further, it falls into the adjacent moderation recess 9a2 and stops at that position. FIG. 16 (d) shows a state where the moderator 9b1 has dropped into the adjacent moderation recess 9a2 separated by one pitch from the specific moderation recess 9a1. In the first half of the movement for one pitch, the second member 92 is forcibly separated from the first member 91 and the elastic washer 90 is compressed. By the force, the second member 92 is pressed against the first member 91, and the specific moderator 9b1 is engaged with the moderation concave 9a2 adjacent to the specific moderator 9a1. At this time, the specific moderation concave portion 9a1 is engaged with the adjacent moderator 9b0 on the opposite side of the specific moderator 9b1.

  Although the above description focuses on the movement of the specific moderator 9b1 for the sake of explanation, all the moderators 9b simultaneously perform the motion according to this, and the leg 62 that rotates together with the second member 92 is turned. The moderation can be stopped at intervals of one pitch q on the way.

<The other screen S2>
The other screen S2 is an L-type screen having an L shape in a plan view, and includes a frame-shaped screen main body 1 and a pair of facing materials 2A and 2B arranged on both surfaces of the screen main body 1. Do it.

  The configuration of the screen main body 1 is such that the upper frame 5 and the lower frame 6 are bent at a right angle at the center, and an adjuster 63 as a grounding body is provided below the lower frame 6 instead of the leg 62. Only one point is different from one screen S1 only in that the weight plate 64 is provided on the lower surface side of the bent portion of the lower frame 6, and the configuration is basically the same as that of the one screen S1. Have been. The front and back facing materials 2A and 2B are also covered with the frame body in a state of being knitted in a bag shape in the same manner as in the case of one screen S1, and the lower edges of the front and back facing materials 2A and 2B are connected to the lower frame. It is attached to the frame body by connecting on the lower surface side. Therefore, the same or corresponding portions as one screen S1 are denoted by the same reference numerals, and description thereof will be omitted.

  The grounding bodies of the two screens S1 and S2 are of different types, but have the same supporting height. That is, at least the height position H of the basic magnet M1 of both screens S1 and S2 is set to be the same (so that the separation distance P between the floor F and each of the magnets M1 and M2 is the same). ing. In the present embodiment, the lower separation distance Z, which is the distance between the basic magnet M1 and the lower magnet M2 in both screens S1 and S2, is set to be the same.

<Effects of One Embodiment>
With such a configuration, the leg 62 can be turned with respect to the lower frame 6 of the screen main body 1 only by applying the operating force FF in the turning direction to the leg 62, and The posture of the leg 62 can be freely changed. In addition, as shown in FIG. 15, each leg 62 is moved to a use position (U) that is orthogonal to the screen main body 1 and a storage position (K) that is parallel to the screen main body 1 by the operation of the moderation mechanism 9. Not only can each moderation stop be performed, but also moderation stop can be performed at a plurality of intermediate positions (N1) to (N5) during the transition from the use position (U) to the storage position (K). In this embodiment, the leg 62 is selectively stopped at five intermediate positions (N1) to (N5) on the way from the use position (U) to the storage position (K), and is stably held. Can be. Therefore, the posture of the legs 62 with respect to the screen main body 1 can be changed in various ways, and the screens S1 and S2 are appropriately installed in a relatively free manner while avoiding the influence of obstacles, worker traffic lines, and the like. be able to.

  Moreover, the moderation mechanism 9 of this embodiment is configured to selectively elastically engage the moderator 9b with the plurality of moderation recesses 9a by utilizing the elastic deformation of the elastic washer 90 in the thickness direction. The structure of the mechanism 9 can be simplified and downsized. That is, in the ordinary moderation mechanism, for example, the moderator is elastically urged in the direction of the moderation concave portion using a coil spring or the like. However, if the elastic washer 90 is used instead of the coil spring or the like, the size is significantly reduced. be able to. In such a case, the stroke of the moderator 9b with respect to the moderation recess 9a (the height h1 of the waves 91w and 92w of the first member 91 and the second member 92) can be set to a small value. Therefore, it is easy to make the moderation concave portions 9a shallow and small to arrange a large number of adjacent concave portions. Therefore, it is possible to increase the number of positions where the moderation stops, that is, the number of intermediate positions (N) where the leg 62 click-stops during the turning.

  Furthermore, in this embodiment, the bearing 93 of the screen main body 1 that pivotally supports the support shaft 94 of the leg 62 also functions as the first member 91 of the moderation mechanism 9, so that the number of parts is reduced. be able to.

  Further, in this embodiment, the waves 91w formed on the end face of the first member 91 and the waves 92w formed on the end face of the second member have the same shape. 9b can be manufactured using a common mold or a common cutting program, and the manufacturing process can be simplified.

<< Other embodiments >>
Note that the present invention is not limited to the embodiment described above.

  For example, the screen body is not limited to the frame structure, but may be a panel structure or the like. However, if the screen body has a frame structure, weight reduction can be achieved while securing rigidity of the entire screen.

  In addition, the present invention is not limited to a screen that forms a screen system in which a plurality of screens are connected by a magnet, but is also applied to a screen that forms a screen system in which a plurality of screens are connected by a connection unit other than a magnet, or a screen that is used alone. Of course, you can. However, if the plurality of screens are connected by magnets, the plurality of screens can be freely mounted and dismounted regardless of the difference in height and the type or presence of the grounding body.

  The number of moderators of the moderation mechanism is not limited to the same number as the moderation recesses, and may be one or four as described above. However, if the number of the moderators of the moderation mechanism is the same as the number of the moderation recesses, the moderator and the moderator are formed by forming waves of the same shape on the end surface of the first member and the end surface of the second member as in the above-described embodiment, for example. Since the moderation recess can be formed, the manufacturing process can be simplified. On the other hand, as described above, the number of intermediate positions where the legs click-stop between the use position and the storage position may be arbitrarily set.

  The elastic washer used as the elastic body of the moderating mechanism is not limited to a spring washer in a narrow sense, and may be, for example, an annular thin metal plate formed into a wavy shape, or a rubber-made one. Further, a configuration may be adopted in which the moderator is elastically biased in the concave direction by an elastic body other than the elastic washer.

  The height dimension of the waves formed on the opposed end faces of the first member and the second member is not a value corresponding to the elastic deformation dimension in the thickness direction of the elastic washer, but is smaller than the elastic deformation dimension. For example, when the operating force in the turning direction is applied to the leg, the moderator can be released from the moderation recess and engaged with another moderation recess. However, if the height of the wave is set to a value corresponding to the elastic deformation in the thickness direction of the elastic washer, the leg can be more stably stopped. In addition, the shapes of the engagement concave portion and the engagement element are not limited to those utilizing the waves formed on the opposed end faces of the first member and the second member. A plurality of bottomed hole-shaped engaging recesses, which are provided on the second member side and are movable and elastic between an engaging position for engaging the engaging recess and a withdrawing position for extracting from the engaging recess. It is also possible to adopt a device utilizing a projecting engagement element elastically urged toward the engagement position by the body.

  In addition, various modifications may be made without departing from the spirit of the present invention.

S1, S2 Screen 1 Screen main body 6 Lower frame 62 Leg 62c Center of rotation 9 Moderation mechanism 9a, 9a1, 9a2 Moderation recess 9b, 9b1, 9b0 Moderator 90 Elastic washer 91 ... First Member 91w: Wave of the first member 92 ... Second member 92w: Wave of the second member 93 ... Bearing part 94 ... Support shaft (U) ... Usage position (K) ... Storage position (N1) to (N5) ... Intermediate position

Claims (7)

A screen main body, a leg provided on the screen main body and capable of turning between a use position at least in an orthogonal posture with respect to the screen main body and a storage position in a parallel posture with the screen main body; A moderation mechanism that stops moderation not only at the storage position but also at a plurality of intermediate positions in the middle of the turning. The detent mechanism is such that the detent is moved relatively to a plurality of detent recesses so as to be selectively engaged with each other, and as an elastic body that elastically urges the detent in the direction of the detent recess. The screen according to claim 1, further comprising an elastic washer capable of elastically deforming in a thickness direction. The detent mechanism includes a first member having the detent recesses adjacently arranged at a constant pitch in a circumferential direction around a center of rotation of the leg, and a modest rotation of the detent element in a circumferential direction around the center of rotation. A second member arranged adjacently at a pitch, wherein the first member is provided on one of the screen body and the leg, and the second member is provided on the other. Screen described. The screen main body forms a frame structure, and a lower frame constituting a lower edge portion of the screen main body is provided with a bearing having an axis aligned with the center of rotation, and a support provided on the leg at the bearing is provided. The shaft is rotatably and slidably inserted in the axial direction,
4. The screen according to claim 3, wherein the bearing portion also serves as the first member, and the second member is provided around the support shaft on the upper surface of the leg. The opposite end faces of the first member and the second member each have a shape that undulates in a circumferential direction at a constant pitch, and a valley portion of a wave of the first member serves as the moderation recess, The screen according to claim 4, wherein the crest of the wave of the second member is the moderator. A retaining flange provided at an upper end of the support shaft and placed, and the elastic washer is interposed between the retainer flange and the lower frame in a state of being wound around the support shaft, wherein the elastic washer is provided. 6. The screen according to claim 5, wherein the support shaft is pulled up together with the leg by the elastic repulsion force, so that the detent is elastically contacted with the detent recess. 7. The screen according to claim 6, wherein a height dimension of the waves formed on the opposite end faces of the first member and the second member is set to a value corresponding to an elastic deformation dimension in a thickness direction of the elastic washer. .

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