Fixing device, movable partition panel, and movable partition

Abstract

To provide a fixing device which can eliminate the need for a separate operation for fixing and can be reduced in size.SOLUTION: A fixing device 1 includes a housing portion 11, a lateral slide portion 12 movably attached to the housing portion 11 for horizontal displacement, a longitudinal slide portion 13 movably attached to the housing portion 11 for vertical displacement, a pushing member 14 coupled to the longitudinal slide portion 13 and configured to advance for vertical displacement, first biasing means S2 configured to generate a biasing force against the advancement of the pushing member 14, and a rotating cam member 15 rotatably attached to the housing portion 11 and configured, when being brought into rotational operation, to convert the lateral displacement of the lateral slide portion 12 into the vertical displacement of the longitudinal slide portion 13.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a fixing device that is a device for fixing a movable partition panel when it is installed (and to a movable partition panel and a movable partition that use the same). [Background technology]

[0002] For example, in various types of venues, event halls, conference rooms, etc., it is necessary to change the layout of the room (space creation) depending on the purpose. To meet such needs, movable partitions are used, which are equipped with running rails on the ceiling and have movable partition panels hung from them, making it easy to set up and remove the partitions in the room. Patent Document 1 discloses technology relating to a fixing device for fixing such movable partition panels when they are installed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7079458 Summary of the Invention [Problem to be solved by the invention]

[0004] According to Patent Document 1, "it is possible to provide a fixing device for movable partition wall panels that requires no operation, has a simple structure and can be firmly fixed, and has excellent design, as well as a movable partition wall that uses said fixing device (paragraph 0019)." However, in the device of Patent Document 1, since the first slide member having the inclined guide hole 11c is used, the dimension in the left-right direction (the sliding direction of the first slide member) when viewed from the front tends to be large. In addition, the dimension in the up-down direction is also large due to the rod portion 33 protruding upward (it is necessary to secure space around the rod portion 33 so as not to impede the operation of the rod portion 33 protruding upward).

[0005] The present invention aims to provide a fixing device that eliminates the need for a separate operation for fixing a movable partition panel when it is installed, and that enables the device to be made more compact, as well as a movable partition panel and a movable partition that use the same. [Means for solving the problem]

[0006] (Configuration 1) A fixing device comprising: a housing portion; a lateral slide portion movably attached to the housing portion so as to be displaced in a horizontal direction; a vertical slide portion movably attached to the housing portion so as to be displaced in a vertical direction; a push-in member connected to the vertical slide portion or integral with the vertical slide portion and advancing so as to be displaced in the vertical direction; a first biasing means for generating a biasing force to resist the advancement of the push-in member; and a rotating cam member rotatably attached to the housing portion and which converts the horizontal displacement of the lateral slide portion into vertical displacement of the vertical slide portion through a rotating operation.

[0007] (Configuration 2) The fixing device described in configuration 1, wherein the rotating cam member has a lateral contact portion that directly or indirectly contacts the lateral slide portion and a vertical contact portion that directly or indirectly contacts the vertical slide portion, and is configured to vertically displace the vertical slide portion by a rotational force imparted to the rotating cam member by horizontal displacement of the lateral slide portion.

[0008] (Configuration 3) 3. The fixing device according to claim 2, wherein the longitudinal contact portion is formed as a protrusion.

[0009] (Configuration 4) A fixing device as described in any one of configurations 1 to 3, comprising a stopper that restricts the return of rotation of the rotating cam member when the pushing member is advanced, and a release member that releases the restriction of the stopper on the rotating cam member.

[0010] (Configuration 5) The fixing device according to configuration 4, wherein the stopper is movable between a restricting position that restricts the return of rotation of the rotating cam member and a restricting release position, and the release member comprises a lateral slide stopper portion movably attached to the housing portion so as to be displaced horizontally, and a second biasing means that biases the lateral slide stopper portion, wherein the stopper is positioned at the restricting position when the lateral slide stopper portion is slid against the biasing force of the second biasing means, and the stopper is positioned at the restricting position when the lateral slide stopper portion is slid by the biasing force.

[0011] (Configuration 6) The fixing device according to configuration 5, wherein the stopper has an engagement portion that engages with the lateral slide stopper portion, and a tip of the engagement portion is formed in an arc shape.

[0012] (Configuration 7) A movable partition panel comprising a fixing device according to any one of configurations 1 to 6, a panel body, a hoist provided on an upper portion of the panel body, and a pressure contact device that is movable so as to be displaced vertically relative to the panel body and driven by the fixing device.

[0013] (Configuration 8) A movable partition panel as described in configuration 7, in which the fixing devices are provided at the top and bottom of each of the side surfaces at both ends in the moving direction of the panel body, for a total of four fixing devices.

[0014] (Configuration 9) A movable partition comprising a plurality of movable partition panels according to configuration 7 or 8, and a running rail arranged on a ceiling for suspending the movable partition panels in a slidable manner. Effect of the Invention

[0015] According to the present invention, it is possible to provide a fixing device which eliminates the need for a separate operation for fixing a movable partition panel when it is installed, and which allows the device to be made more compact, as well as a movable partition panel and a movable partition which use this fixing device. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a diagram showing a fixing device according to a first embodiment of the present invention (in a state in which a pushing member is not advanced); [Diagram 2] FIG. 1 is a diagram showing the fixing device of the first embodiment (in a state in which the pushing member is advanced); [Diagram 3] FIG. 1 is an enlarged view of the vicinity of a rotating cam member of a fixing device according to a first embodiment. [Figure 4] FIG. 13 is a diagram showing a location where a fixing device is provided on a movable partition panel (in a state where a pushing member is not advanced) according to a second embodiment of the present invention. [Diagram 5] FIG. 13 is a diagram showing a location where a fixing device is provided on the movable partition panel of the second embodiment (in a state where the pushing member is advanced). [Figure 6] A schematic diagram showing the installation of movable partition panels for a movable partition. [Figure 7] FIG. 1 shows another example of a fixing device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that the following embodiment is one form for realizing the present invention, and is not intended to limit the scope of the present invention.

[0018] <Embodiment 1> Fig. 1 shows a fixing device 1 (without a push-in member advanced) according to a first embodiment of the present invention, with Fig. 1(a) being a left side view, Fig. 1(b) being a front view transparently shown so that the internal structure can be understood, and Fig. 1(c) being a cross-sectional view taken along line AA in Fig. 1(b). Fig. 2 shows the same fixing device 1 (Fig. 2(a) being a left side view, Fig. 2(b) being a front view, and Fig. 2(c) being a cross-sectional view) showing a state in which the push-in member has advanced. The fixing device 1 of this embodiment is a device for driving a pressure contact device for a movable partition panel in order to fix the panel when the panel is installed. A housing part 11 and A horizontal slide portion 12 movably attached to the housing portion 11 so as to be displaced in a horizontal direction; A vertical slide portion 13 movably attached to the housing portion 11 so as to be displaced in the vertical direction; A push-in member 14 that is connected to the vertical slide portion 13 by a shaft 18 and moves forward so as to be displaced in the vertical direction; A spring (first biasing means) S2 that generates a biasing force against the advancement of the pushing member 14; a rotating cam member 15 that is rotatably attached to the housing portion 11 and converts the horizontal displacement of the lateral slide portion 12 into the vertical displacement of the vertical slide portion 13 by a rotational movement; a stopper 16 that restricts the rotation of the rotating cam member 15 from returning when the pushing member 14 is in the advanced state; a release member 17 that releases the restriction of the stopper 16 on the rotating cam member 15; It is equipped with:

[0019] The housing 11 is a box-shaped member that houses the various components. The housing 11 in this embodiment is composed of a box-shaped member 111 and a cover member 112. The box-shaped member 111 has: A guide groove that holds the lateral slide portion 12 so as to be slidable in a horizontal direction and to be capable of protruding from a side surface; A guide groove that holds the vertical slide portion 13 so that the vertical slide portion 13 can slide in the vertical direction; A guide groove that holds the lateral slide stopper portion 171 so as to be slidable in the horizontal direction and to be capable of protruding from a side surface; Recesses for holding springs S2 and S3 are formed. The cover member 112 is a plate-like member, and is joined to the box-like member 111 after the various members described below are assembled to the box-like member 111. The housing 11 is also provided with shaft members or bearings for rotatably holding the rotating cam member 15 and the stopper 16, respectively. In this example, the housing unit 11 is a box-shaped member, but the present invention is not limited to this. The housing unit may be any member that can hold each component in an operable manner, and may be, for example, a frame-shaped member.

[0020] The horizontal slide portion 12 is a member provided so as to be able to protrude from one side surface (the left side surface in FIG. 1(b)) of the housing portion 11, and is a member that abuts against the rotating cam member 15 to rotate the rotating cam member 15. More specifically, as will be described later, the horizontal slide portion 12 is provided so as to protrude from the surface where adjacent movable partition panels come into contact with each other, and when the adjacent movable partition panels come into contact with each other, the horizontal slide portion 12 is pushed to slide, thereby rotating the rotating cam member 15. Figure 1 shows the state in which the lateral slide portion 12 protrudes from the housing portion 11 and is not applying any rotational force to the rotating cam member 15, while Figure 2 shows the state in which the lateral slide portion 12 is pushed and slides, causing the rotating cam member 15 to rotate. The lateral slide portion 12 has cam abutment portions 121 on both sides (the front side and the rear side in a front view (FIG. 1(b))), and the cam abutment portions 121 rotate the rotating cam member 15. The tip portion of the cam abutment portion 121 (the portion that comes into contact with the rotating cam member 15) is formed in a curved (round) shape, ensuring smooth contact with the rotating cam member 15. Although the above-mentioned shape is used as an example here, the lateral sliding portion of the present invention is not limited to this, and the lateral sliding portion can be of any shape that can move when pressed and rotate the rotating cam member.

[0021] The rotating cam member 15 is rotatably attached to the housing 11, rotates when pressed by the horizontal slide portion 12, and presses the vertical slide portion 13 downward as a result of this rotation. The rotating cam member 15 is biased by a coil spring S4 in a rotational direction that pushes back the horizontal slide portion 12. The rotating cam member 15 of this embodiment has two plate-like members with a basic fan shape on both sides (the front side and the back side in a front view (FIG. 1(b))) (see FIG. 1(c)). These two fan-shaped plate members are connected to each other by a shaft member, and a coil spring S4 is provided on the shaft member. The shaft member is the rotation axis of the rotating cam member 15. FIG. 3 is an enlarged view of the vicinity of the location where the rotating cam member 15 in FIG. 1(b) is disposed. The fan-shaped plate material of the rotating cam member 15 has a lateral contact portion 151 that contacts the lateral slide portion 12 on one radial side of the fan shape, and a vertical contact portion 152 that contacts the vertical slide portion 13 on the other radial side of the fan shape, and is configured to displace the vertical slide portion 13 vertically by the rotational force generated by the horizontal displacement of the lateral slide portion 12. The vertical contact portion 152 is formed as a convex portion, and its tip portion (the portion that comes into contact with the vertical slide portion 13) is formed in a curved (rounded) shape, thereby ensuring smooth contact of the rotating cam member 15 with the vertical slide portion 13. An engaging recess 153 that engages with a stopper 16 described below is formed on the side of the lateral contact portion 151 of the sector-shaped plate material of the rotating cam member 15. Although the above-mentioned shape is used as an example here, the rotating cam member of the present invention is not limited to this, and the rotating cam member can be of any shape that can displace the vertical slide part in the vertical direction by the rotational force generated by the horizontal displacement of the lateral slide part. However, it is preferable to adopt a fan shape because the fan shape reduces unintended interference with the operation of the stopper described below. The contact between the rotating cam member 15 and the horizontal slide portion 12 or the vertical slide portion 13 is not limited to direct contact with each other, but may be indirect contact via another member. In addition, in this embodiment, the coil spring S4 is used to bias the lateral slide portion 12 in the rotation direction so as to make the operation of the rotating cam member smooth, but the coil spring S4 is not necessarily required. This is because the biasing force of the spring S2, which will be described later, can provide the function of biasing the rotating cam member in the rotation direction so as to push back the lateral slide portion 12.

[0022] The vertical slide portion 13 is a member that is movably attached to the housing portion 11 so as to be displaceable in the vertical direction, and is pushed down as the rotating cam member 15 rotates. The vertical slide portion 13 has, on its upper surface, a flat portion that comes into contact with the vertical contact portion (convex portion) 152 of the rotating cam member 15. In addition, the shaft 18 is connected to the lower surface side thereof. The shaft 18 extends to the outside of the housing 11 through a through hole (not shown) provided in the housing 11, and is connected to the push-in member 14 at the other end. A spring (first biasing means) S2 through which a shaft 18 passes is provided between the vertical sliding portion 13 and the housing portion 11, and the vertical sliding portion 13 is biased upward by the spring S2. Although the above shape is used as an example here, the vertical sliding portion of the present invention is not limited to this, and the vertical sliding portion can be of any shape that is capable of pushing the push-in member downward when pressed by the rotating cam member.

[0023] The pushing member 14 is connected to a shaft 18 and moves up and down in response to the vertical movement of the vertical sliding portion 13 . The pusher member 14 of this embodiment is basically a rectangular tubular member having a bottom surface, and has a spring S1 inside. The spring S1 is provided between the bottom surface of the pusher member 14 and the piston member 141, and the shaft 18 is connected to the piston member 141. As a result, as the shaft 18 advances downward, the pushing member 14 also moves downward, and even after the pushing member 14 comes into contact with another member and cannot move any further down (the pressing device described later comes into contact with the floor surface), the spring S1 contracts, allowing the shaft 18 (and the piston member 141) to be pushed further in while maintaining a compressive force. Although the above-mentioned shape is taken as an example here, the pushing member of the present invention is not limited to this, and the pushing member can be of any shape that has the above-mentioned function.

[0024] The stopper 16 is rotatably attached to the housing 11, and is capable of swinging between a restricting position (the state in FIG. 2) in which the rotation of the rotating cam member 15 is restricted from returning, and a restricting position (the state in FIG. 1). The stopper 16 of this embodiment is a plate-shaped (rod-shaped in front view (FIG. 1(b))) member in its basic form, and is rotatably attached to the rotation shaft at a position above the center on the shaft in front view. As a result, in a free state, it is configured to face vertically due to its own weight. The upper side of the stopper 16 above the rotation axis constitutes an upper protrusion (engagement portion) 161 (see FIG. 3), and the lower side constitutes a cam engagement portion 162. The upper protrusion 161 comes into contact with an engaging projection 1711 of the lateral slide stopper portion 171 described below, and when the lateral slide stopper portion 171 is in the protruding position, the stopper 16 is rotated to the restriction release position (the state shown in FIG. 1(b)). The tip (upper portion) of the upper protrusion 161 is formed in an arc shape when viewed from the front (FIG. 3), which allows for a smooth engagement with the lateral slide stopper portion 171 described below. As shown in FIG. 2(b), when the stopper 16 is vertical (restricted position), the cam engagement portion 162 engages with the engagement recess 153 of the rotating cam member 15, and restricts the rotating cam member 15 from rotating back. Although the above-mentioned shape is taken as an example here, the stopper of the present invention is not limited to this, and the stopper can be of any shape that has the above-mentioned function.

[0025] The release member 17 releases the restriction of the stopper 16 on the rotating cam member 15, and includes a lateral slide stopper portion 171 movably attached to the housing portion 11 so as to be displaceable in the horizontal direction, and a spring (second biasing means) S3 that biases the lateral slide stopper portion 171. As will be explained later, similar to the lateral sliding section 12, the lateral sliding stopper section 171 is arranged so that it protrudes from the surface where adjacent movable partition panels come into contact with each other, and when adjacent movable partition panels come into contact with each other, the lateral sliding stopper section 171 is pushed and slides. Figure 1(b) shows a state in which the lateral slide stopper portion 171 protrudes from the housing portion 11 and does not restrict rotation of the rotating cam member 15, while Figure 2(b) shows a state in which the lateral slide stopper portion 171 is pushed and slides, restricting the rotation of the rotating cam member 15. As can be seen from FIG. 1( b ), the amount of protrusion of the lateral slide stopper portion 171 is configured to be smaller than the amount of protrusion of the lateral slide portion 12 . The horizontal slide stopper portion 171 is basically a rectangular prism-shaped member, and has an engagement protrusion 1711 (see FIG. 3) formed at a position facing the stopper 16. When the horizontal slide stopper portion 171 is in the protruding position, the engagement protrusion 1711 engages with an upper convex portion (engagement portion) 161 of the stopper 16, and rotates the stopper 16 to the restriction release position. As the horizontal slide stopper portion 171 is pressed in, the engagement of the engagement protrusion 1711 with the upper convex portion 161 is released, and as a result, the stopper 16 faces vertically (moves to the restriction position) due to its own weight. The spring (second biasing means) S3 is provided between the housing 11 and the horizontal slide stopper 171, and biases the horizontal slide stopper 171 in a direction to protrude. The elastic force of the spring S3 is smaller than the elastic force of the spring S1 and the spring S2. More specifically, the movable partition panel is configured so that the elastic force of the four springs S3 does not move the movable partition panel. Two fixing devices 1 are provided at the top and bottom of the contact surface between the movable partition panels. That is, fixing devices 1 are provided at the top and bottom of each of the side surfaces at both ends in the moving direction of the movable partition panel. Therefore, when adjacent movable partition panels come into contact with each other, the four horizontal slide stopper parts 171 are pushed in. At this time, the four horizontal slide stopper parts 171 are forced to return by the elastic force of each spring S3, so that the movable partition panel does not move, and the movable partition panel is "configured so that the elastic force of the four springs S3 does not move the movable partition panel." As described above, the release member 17 is configured so that "when the lateral slide stopper portion is slid against the biasing force of the second biasing means, the stopper is positioned at the restricted position, and when the lateral slide stopper portion is slid by the biasing force, the stopper is positioned at the released restriction position." Although the above-mentioned configuration is taken as an example here, the release member 17 of the present invention is not limited to this, and the release member 17 can have any configuration that has the above-mentioned function.

[0026] A series of operations of the fixing device 1 having the above configuration will be outlined below. When the left side surface of the fixing device 1 in FIG. 1(b) (the left side surface is used here for ease of explanation, and depending on the installation conditions of the fixing device 1, it could be any direction such as the right side surface, top surface, or bottom surface) comes into contact with another component (specifically, the adjacent movable partition panel), first the lateral sliding portion 12 is pushed in. As the horizontal slide portion 12 is pushed in, the rotating cam member 15 rotates, causing the vertical slide portion 13 and the pushing member 14 to advance downward. As the slide further advances, the lateral slide stopper portion 171 begins to be pushed in. As the lateral slide stopper portion 171 is pushed in, the engagement of the engagement protrusion 1711 of the lateral slide stopper portion 171 with the upper protrusion 161 of the stopper 16 is released, and the stopper 16 comes into a state of following (leaning against) the arc of the sector shape of the rotating cam member 15. At this time, because the rotating cam member 15 is sector-shaped, unintended interference with the rotation of the rotating cam member 15 due to contact of the stopper 16 is prevented. When the horizontal slide portion 12 is pushed in completely (when it comes into close contact with the adjacent movable partition panel), the vertical slide portion 13 and the pushing member 14 reach their most advanced state. Also, the cam engagement portion 162 of the stopper 16 engages with the engagement recess 153 of the rotating cam member 15 (as shown in FIG. 2(b)). This restricts the rotation of the rotating cam member from returning, so that the force with which the horizontal slide portion 12 is pushed back by the springs S1 and S2 (and the coil spring S4) is restricted. In this manner, the fixing operation by the fixing device 1 is performed.

[0027] Next, as a release operation, when the adjacent movable partition panel starts to move, first, the horizontal slide stopper portion 171 starts to slide due to the biasing force of the spring S3. At this stage, since the stopper 16 is in the restricted position, the rotating cam member 15 cannot rotate, and therefore the horizontal slide portion 12, the vertical slide portion 13 and the pushing member 14 do not move at this stage either. As the horizontal slide stopper portion 171 slides, the engagement projection 1711 of the horizontal slide stopper portion 171 engages with the upper projection 161 of the stopper 16, rotating the stopper 16 to the restriction release position, and the rotating cam member 15 rotates due to the biasing force of the springs S1 and S2 (and the coil spring S4), and accordingly the horizontal slide portion 12 also slides in the protruding direction. Also, the vertical slide portion 13 and the pushing member 14 move upward due to the biasing force of the springs S1 and S2. When the adjacent movable partition panels are moved away from each other, the state shown in FIG. 1 is restored. In this manner, the fixing release operation by the fixing device 1 is completed.

[0028] As described above, according to the fixing device 1 of this embodiment, the fixing and releasing operations are automatically performed as the movable partition panel moves, so that no separate operation for fixing or releasing is required. Furthermore, according to the fixing device 1 of this embodiment, the use of a rotating cam member allows the device to be made more compact. In the device of Patent Document 1, since the first slide member having the inclined guide hole 11c is used, the dimension in the left-right direction (the sliding direction of the first slide member) when viewed from the front tends to be large. In addition, the dimension in the up-down direction is also large due to the rod part 33 protruding upward (it is necessary to secure space around the rod part 33 protruding upward so as not to impede the operation of the rod part 33). In contrast to this, the fixing device 1 of this embodiment uses a rotating cam member, which allows the device to be made more compact.

[0029] <Embodiment 2> Next, as a second embodiment, a movable partition panel equipped with the fixing device 1 of the first embodiment will be generally described. Fig. 4 shows the location where the fixing device 1 is installed on the lower side of the movable partition panel 2 of the second embodiment of the present invention (when the pushing member is not advanced), Fig. 4(a) is a left side view, and Fig. 4(b) is a front view partially shown transparently so that the internal structure can be understood. Fig. 5 also shows the location where the fixing device 1 is installed on the lower side of the movable partition panel 2 (Fig. 5(a) is a left side view, Fig. 5(b) is a front view), showing the state when the pushing member is advanced.

[0030] Movable partition panel 2 is A panel body 21; A hoist (not shown) provided on the upper part of the panel body 21; A fixing device 1 disposed inside a panel body 21; The panel body is provided with a pressure contact device that is movable so as to be displaced in a vertical direction relative to the panel body and is driven by the fixing device.

[0031] FIG. 6 is a diagram showing an outline of a movable partition 100 using the movable partition panel 2. As shown in FIG. The movable partition panel 2 is slidably suspended by a running rail 3 installed on the ceiling. The traveling rail 3 of the movable partition 100, the hoist that is mounted so as to be able to run on the traveling rail 3, the configuration of the panel body 21, and the like can be any arbitrary one, and therefore description thereof will be omitted here.

[0032] As shown in FIGS. 4 and 5, a pressure welding device 22 is provided at the lower end of the movable partition panel 2 so as to be capable of appearing and disappearing from the panel body 21. The pressure welding device 22 includes two wall plates 221 arranged vertically, a bottom surface 222, and legs 223. The wall panel 221 and the bottom surface 222 are basically plate-like members, and the legs 223 are formed of pressure-welded rubber. The wall panel 221, the bottom surface 222, and the legs 223 have a width dimension that is approximately the same as the width of the movable partition panel 2 (in the left-right direction when viewed from the front (FIG. 4(b))). Therefore, when the pressure-welding device 22 advances, the gap below the movable partition panel 2 is blocked. Although not specifically shown, a pressure-welding device of a similar concept is also arranged on the upper side of the movable partition panel 2, so that the gap above the movable partition panel 2 is blocked by the upper pressure-welding device advancing. Here, the above-mentioned configuration is used as an example of the pressure welding device 22, but the pressure welding device of the present invention is not limited to this, and the pressure welding device can be of any configuration that is movable so as to be displaced vertically relative to the panel body and can come into contact with a floor surface, etc.

[0033] As shown in Figure 4(b), the fixing device 1 is installed inside the movable partition panel 2 so that the lateral slide portion 12 and the lateral slide stopper portion 171 protrude from the side of the movable partition panel 2, and the pushing member 14 is connected to the pressure contact device 22. The fixing devices 1 are provided near the lower and upper ends of both side surfaces in the width direction (left and right direction when viewed from the front (Fig. 4(b))) of the movable partition panel 2. That is, basically, four fixing devices 1 are provided on one movable partition panel 2. Figs. 4 and 5 show a fixing device 1 installed on the lower left side, but with a similar concept, fixing devices 1 are provided at the four corners of the movable partition panel 2 (symmetrically left and right or vertically).

[0034] A series of operations of the movable partition panel 2 having the above-mentioned configuration will be outlined below. Note that, although the fixing device and pressure welding device on the lower left side will be described here, the right side and upper side have the same concept (left-right symmetry or top-bottom symmetry). As shown in FIG. 6, when the movable partition panels 2 are moved for installation, adjacent movable partition panels 2 come into contact with each other. This contact, as described in the first embodiment, drives the fixing device 1 to advance the pushing member 14 downward, which also advances downward the pressure contact device 22. When the adjacent movable partition panels 2 are brought into close contact with each other, as shown in Fig. 5, the pressure contact device 22 comes into contact with (is pressed against) the floor surface FL, and the fixing operation by the fixing device 1 is completed. At this time, as described in the first embodiment, due to the locking by the stopper 16, the biasing force of the springs S1 and S2 (and the coil spring S4) does not act to push out the horizontal sliding portion 12. Furthermore, since the elastic force of the spring S3 is set to an elastic force that does not allow the movable partition panel 2 to move as described above, the movable partition panel 2 is not moved by the horizontal sliding stopper portion 171. Therefore, when the movable partition panel 2 is released from the hand, the movable partition panel 2 will not move due to being pushed by the horizontal sliding portion 12 or the horizontal sliding stopper portion 171, and this provides excellent operability.

[0035] When removing (storing) the movable partition panel 2, the movable partition panel 2 is pulled and moved, thereby releasing the contact between adjacent movable partition panels 2. As a result, as described in the first embodiment, the fixing device 1 is driven and the pushing member 14 moves upward, whereby the pressing device 22 also moves away from the floor surface FL and returns to the stored state of FIG.

[0036] As described above, according to the movable partition panel 2 of this embodiment, by using the fixing device 1, the fixing and unlocking operations are performed automatically as the movable partition panel moves, so no separate operations are required for fixing and unlocking.

[0037] In the embodiment, an example is given in which a stopper has a function of locking the rotation of the rotating cam member, which is highly convenient as described above, but the present invention is not limited to this, and the rotation locking function may not be present. 7 shows a fixing device 1' as an example of a fixing device without a rotation lock function. The same components as those in the fixing device 1 of the first embodiment are given the same reference numerals, and the description thereof will be omitted here. Although the box-shaped member 111', vertical slide portion 13', and rotating cam member 15' of the fixing device 1' differ in shape from the box-shaped member 111, vertical slide portion 13, and rotating cam member 15 of the fixing device 1 of embodiment 1, the basic concept is similar, so the explanation here is omitted. The spring S5 is a member that biases the horizontal slide portion 12' in the protruding direction. Since the biasing force of the spring S2 and the like is transmitted to the horizontal slide portion 12' via the rotating cam member 15', the spring S5 can be omitted in the same manner as the spring S4. Since the fixing device 1' does not have a stopper, it is not possible to obtain the function of a stopper as described above. However, in some cases, for example, when the weight of the movable partition panel is large or the frictional force between the pressure contact device and the floor surface is large, it may be possible to prevent the movable partition panel from moving even if the hand is released from the movable partition panel, even without a stopper.

[0038] In the embodiment, an example is given in which the pushing member 14 is connected to the vertical sliding portion 13 via the shaft 18 (the pushing member 14 and the vertical sliding portion 13 are separate entities), but the present invention is not limited to this, and the pushing member may be integrally formed with the vertical sliding portion 13.

[0039] In the embodiment, the stopper 16 is rotated to a vertical state (restricted position) by its own weight, but the present invention is not limited to this. For example, a biasing means such as a spring that biases the stopper 16 to rotate to the restricted position may be provided. Also, when the lateral slide stopper portion is pushed in, a protrusion that engages with the stopper and rotates the stopper to the restricted position may be provided (for example, a protrusion similar to the engagement protrusion 1711 of the lateral slide stopper portion 171 that engages with the upper convex portion 161 and rotates the stopper 16 to the restricted position when the lateral slide stopper portion 171 is pushed in may be provided).

[0040] In the embodiment, the horizontal slide portion and the horizontal slide stopper portion protrude from the side surface, but the present invention is not limited to this. For example, the horizontal slide portion and the horizontal slide stopper portion (or either one of them) may be provided so as not to protrude from the side surface (for example, provided flush with the side surface so that they can be pushed inward from there), and a protrusion or the like that pushes the horizontal slide portion and the horizontal slide stopper portion inward may be provided on the contacting side (the adjacent movable partition panel 2). [Explanation of symbols]

[0041] 1...Fixing device 11...Housing 12...Horizontal slide section 13...Vertical slide section 14... Push-in member 15...Rotating cam member 151...lateral contact area 152...Vertical contact part (convex part) 16...Stopper 161...Upper protrusion (engagement part) 17...Release member 171...Horizontal slide stopper part S2...Spring (first biasing means) S3...Spring (second biasing means) 2. Movable partition panel 21... Panel body 22...Pressure welding device 3...Running rail 100... Movable partition

Claims

1. A housing part; A horizontal slide part movably attached to the housing part so as to be displaced in a horizontal direction; A vertical slide portion movably attached to the housing portion so as to be displaced in a vertical direction; A push-in member that is connected to the vertical slide portion or is integral with the vertical slide portion and moves forward so as to be displaced in a vertical direction; a first biasing means for generating a biasing force against the advancement of the pushing member; a rotating cam member that is rotatably attached to the housing and that converts a horizontal displacement of the lateral slide portion into a vertical displacement of the vertical slide portion by a rotating motion; A fixing device comprising:

2. 2. The fixing device according to claim 1, wherein the rotating cam member is provided with a lateral contact portion that directly or indirectly contacts the lateral slide portion and a vertical contact portion that directly or indirectly contacts the vertical slide portion, and is configured to vertically displace the vertical slide portion by a rotational force imparted to the rotating cam member by horizontal displacement of the lateral slide portion.

3. The fastening device according to claim 2 , wherein the longitudinal contact portion is formed as a protrusion.

4. a stopper that restricts the rotation of the rotating cam member from returning when the pushing member is in the advanced state; The fixing device according to claim 1 , further comprising: a release member that releases the restriction of the stopper against the rotating cam member.

5. The stopper is movable between a restricting position where the rotation of the rotating cam member is restricted from returning and a restricting release position, the release member includes a lateral slide stopper portion movably attached to the housing portion so as to be displaced in a horizontal direction, and a second biasing means for biasing the lateral slide stopper portion, 5. The fixing device according to claim 4, wherein the stopper is positioned at the restricted position when the lateral slide stopper portion is slid against the biasing force of the second biasing means, and the stopper is positioned at the released position when the lateral slide stopper portion is slid by the biasing force.

6. The fixing device according to claim 5 , wherein the stopper includes an engagement portion that engages with the lateral slide stopper portion, and a tip of the engagement portion is formed in an arc shape.

7. A fixing device according to any one of claims 1 to 6, The panel body, A hoist provided on an upper portion of the panel body; A movable partition panel comprising: a pressure contact device that is movably provided so as to be displaced vertically relative to the panel body and is driven by the fixing device.

8. The movable partition panel according to claim 7, wherein the fixing device is provided at the upper and lower parts of each of the side surfaces at both ends in the moving direction of the panel body, for a total of four fixing devices.

9. A plurality of movable partition panels according to claim 7 are provided, The movable partition includes a running rail arranged on a ceiling for slidably suspending the movable partition panel.

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