booth

Abstract

To solve a problem of sounds leakage from an internal space, which is likely to occur in a booth with no bottom plate to block the lower surface of the internal space.SOLUTION: A portable booth includes: panels for surrounding walls supported on a base frame; and casters provided on the base frame to allow the booth to move. The base frame includes: a frame material continuous portion in which frame materials are continuously arranged; and a frame material excluded portion formed between open ends of the frame materials. The panels are supported by the frame material continuous portion, and a door panel 5 is arranged openably / closably in the frame material excluded portion. The door panel 5 comprises, at the lower end thereof, a contact member 54 that protrudes down in a floor direction F in response to the opening and closing operation.SELECTED DRAWING: Figure 22

Description

[Technical Field]

[0001] The present invention relates to a portable booth. [Background technology]

[0002] 2. Description of the Related Art Various booths have been developed that allow work, meetings, etc. to be conducted in an interior space surrounded by panels.

[0003] Some of these booths do not have a base to close the underside of the interior space, taking into consideration requests such as being able to enter and exit the interior space while remaining in a wheelchair (see, for example, Patent Document 1).

[0004] To make the interior space of a booth with this configuration soundproof, for example, the interior space could be surrounded on three sides by peripheral wall panels, a door panel could be placed on the open front side that can be opened and closed, and the top of the interior space could be closed with a ceiling panel.

[0005] However, with this configuration, a gap is formed between the bottom edge of the door panel and the floor. This gap is necessary to prevent the door panel from coming into contact with the floor not only when opening and closing the door panel, but also when moving the entire booth along the floor. Therefore, it is difficult to set this gap to a small value. This poses a problem of sound leakage. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Utility Model Registration No. 3231162 Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention aims to solve the problem of sound leakage from the interior space in booths that do not have a base to close the underside of the interior space. [Means for solving the problem]

[0008] The invention described in claim 1 is a portable booth in which peripheral wall panels are supported by a base frame and casters are attached to the base frame to make it movable. The base frame has a frame member continuous section where frame members are continuously arranged and a frame member removed section formed between the open ends of the frame members. The panel is supported by the frame member continuous section, and a door panel is arranged in the frame member removed section so as to be able to open and close. The door panel is: A door body and a door cover having substantially the same longitudinal dimension as the lower end of the door body. Corresponding to opening and closing operations It operates between a standby position away from the floor and a floor contact position where it is in contact with the floor. Floor contact material and It is equipped with The floor-contacting member is positioned at the standby position when the door is open, and at the floor-contacting position when the door is closed. is.

[0009] The booth according to the invention described in claim 2 is the one described in claim 1, and forms an internal space by covering at least three sides except the front with the peripheral wall panels, and the base frame has a frame continuous portion where frame material is arranged continuously and a frame removed portion where the frame material is partially removed, and the door panel is arranged on the front where the frame removed portion is formed.

[0010] The invention of claim 3 provides a booth according to claim 1 or 2, wherein the door panel has a bolt on the end surface of the hinge side that abuts against the door frame and is pushed inward when the door is closed. When the button is pressed, the floor contact member is The aforementioned From the waiting position The aforementioned A member drive mechanism is provided to move the member to the floor contact position.

[0011] The booth according to the invention of claim 4 is the booth according to claim 3, and further comprises an operation timing adjustment mechanism for changing the operation timing of the member driving mechanism.

[0012] The booth according to the invention described in claim 5 is the one described in claim 1, 2, 3 or 4, and is equipped with a member retraction mechanism for exceptionally retracting the floor-contacting member to a retracted position even when the door is closed when moving using the casters. [Effects of the Invention]

[0013] According to the present invention, it is possible to solve the problem that sound is likely to leak from the interior space in a booth that does not have a base panel for closing off the underside of the interior space. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a perspective view showing a booth according to an embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. 3 is a cross-sectional view taken along line XX in FIG. 2. [Figure 4] FIG. 2 is a plan view showing the booth according to the embodiment. [Figure 5] FIG. 3 is a cross-sectional view taken along line YY in FIG. 2. [Figure 6] FIG. 2 is a bottom view showing the booth according to the embodiment. [Figure 7] FIG. 4 is an enlarged view of a main part in FIG. 3. [Figure 8] FIG. 6 is an enlarged view of a main part in FIG. 5. [Figure 9] FIG. 6 is an enlarged view of a main part in FIG. 5. [Figure 10] FIG. 7 is an enlarged view of a main part in FIG. 6. [Figure 11] 11 is a cross-sectional view taken along line ZZ in FIG. 10. [Figure 12] FIG. 10 is a front view showing another state of the booth according to the embodiment. [Figure 13] FIG. 2 is an exploded perspective view showing the booth according to the embodiment. [Figure 14] FIG. 2 is an exploded perspective view showing a connection between a support and a panel according to the embodiment. [Figure 15]FIG. 2 is an exploded perspective view showing a manner in which panels are connected to each other according to the embodiment. [Figure 16] 5A to 5C are explanatory diagrams showing a procedure for connecting members according to the embodiment; [Figure 17] 5A to 5C are explanatory diagrams showing a procedure for connecting members according to the embodiment; [Figure 18] 5A to 5C are explanatory diagrams showing a procedure for connecting members according to the embodiment; [Figure 19] 5A to 5C are explanatory diagrams showing a procedure for connecting members according to the embodiment; [Figure 20] FIG. 2 is an exploded perspective view showing the ceiling of the booth according to the embodiment. [Figure 21] Cross-sectional view along line WW in Figure 5. [Figure 22] 5A and 5B are schematic diagrams showing the operation of the floor contact member in accordance with the opening and closing of the door according to the embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, one embodiment of the present invention will be described with reference to FIGS.

[0016] As shown in Figures 1 to 3, 5, 8, 9, and 11 to 13, booth B of this embodiment is a portable booth in which peripheral wall panels 1 and 2 are supported on a base frame 3 composed of frame members 31, and casters 32 are provided on the base frame 3 to make it movable. The casters 32 are arranged in a recessed position inside the base frame 3, with some exceptions. As shown in Figure 11, the casters 32 are low-profile casters, with wheels 325 pivotally supported on flat supports 323. The rolling direction of the wheels 325 changes as the supports 323 rotate horizontally. As shown in Figures 12 and 13, the base frame 3 has a frame member continuous section 3A where frame members 31 are continuously arranged, and a frame member removed section 3B formed between open ends 31a of the frame members 31. The frame member continuous section 3A supports the panels 1 and 2, and a door panel 5 is arranged in the frame member removed section 3B so that it can be opened and closed.

[0017] More specifically, this booth B is for personal use by one person, and as shown in Figures 3, 5, 8, 9, and 12, it has an interior space S formed by covering at least three sides excluding the front with peripheral wall panels 1 and 2, and a door panel 5 is disposed on the front corresponding to the frame material removed portion 3B of the base frame 3. The upper surface of the room, which is the interior space S, is covered with a ceiling panel 9 equipped with a downward-discharge type automatic fire extinguishing device 94.

[0018] As shown in Figures 5, 8, 9, 14, and 15, the peripheral wall panels 1 located on the sides of the booth B include a sheet metal side panel main body 11 that forms the outer surface of the booth B, and a sheet metal side panel inner plate 12 attached to the room side (the interior space S side) of the side panel main body 11. The side panel main body 11 is rectangular and covers the side surface of the interior space S, and includes horizontal plate portions 111 that extend inward at the upper and lower edges. The front edges of the side panel main body 11 include forward-facing vertical plate portions 112 that extend toward the room side, and inward-facing vertical inner plate portions 113 that extend rearward from the extending ends of the forward-facing vertical plate portions 112. The rear edge of the side panel body 11 is integrally provided with a first rearward-facing vertical plate portion 114 extending toward the room side, an inward-facing vertical inner plate portion 115 extending forward from the extending end of the first rearward-facing vertical plate portion 114, and a second rearward-facing vertical plate portion 116 extending toward the room side from the extending end of the inward-facing vertical plate portion 115. The inward-facing vertical plate portion 115, the second rearward-facing vertical plate portion 116, and the inner surface of the side panel inner plate 12 form a joint surface 1a that is bent at an angle of 90° in a plan view. 13 is a soundproofing plate attached to the side of the interior space S of the peripheral wall panel 1. 14 is a wiring cover attached to the side of the interior space S of the peripheral wall panel 1. 16 is a table top used by users of the booth B. Reference numeral 17 denotes a bracket for attaching the table top 16 to the peripheral wall panels 1 and 2. Reference numeral 18 denotes a wiring duct provided on the underside of the table top 16.

[0019] As shown in Figures 5, 8, 14, and 15, the peripheral wall panel 2 located at the rear of booth B includes a sheet metal back panel main body 21 that forms the outer surface of booth B, and a sheet metal back panel inner panel 22 attached to the interior side of this back panel main body 21. The back panel main body 21 is rectangular and covers the side of the interior space S, and includes horizontal panel portions 211 that extend inward at its upper and lower edges. The left and right edges of the back panel main body 21 are integrally provided with first outward vertical panel portions 212 that extend forward, and forward-facing vertical panel portions 213 that extend inward from the extending ends of the first outward vertical panel portions 212. The left and right edges of the back panel inner panel 22 are each provided with a second outward vertical panel portion 221 that extends rearward and is adjacent to the forward-facing vertical panel portion 213 of the back panel main body 21. The first outward vertical plate portion 212, the forward vertical plate portion 213, and the second outward vertical plate portion 221 form a joint surface 2a that is bent at an angle of 90° in a plan view.

[0020] The base frame 3 is U-shaped in plan view, and as shown in Figures 6 and 12, casters 32 are provided at four locations on the bottom side. That is, as shown in Figures 6, 12, and 13, the base frame 3 has a frame member continuation portion 3A where frame members 31 are continuously arranged, and a frame member removal portion 3B formed between the open ends 31a of the frame members 31. The frame member continuation portion 3A supports the panels 1 and 2, and the frame member removal portion 3B has a door panel 5 arranged in an openable / closable manner. As shown in Figures 3, 6, and 21, the frame member 31 of the base frame 3 is channel-shaped and includes an outer plate 311, an inner plate 312, and an upper plate 313 connecting the upper edges of the outer plate 311 and the inner plate 312. The width w from the outer plate 311 to the inner plate 312 is set larger than the thickness t1 of the panels 1 and 2. Caster seats 321 are fixedly provided at the front and rear ends of the leg regions extending in the front-rear direction of the base frame 3, and casters 32 are provided on these caster seats 321, respectively.

[0021] As shown in Figure 11, the caster 32 includes a support 323 supported on a caster seat 321 via a thrust bearing 322 so as to be horizontally rotatable, and a wheel 325 journaled on the support 323 via a support shaft 324, and the entire caster 32 is housed inside the frame 31 except for a portion of the support, specifically, the ground-contacting half of the wheel 325. In other words, the caster 32 is housed inside the frame 31 with only a portion of the wheel 325 protruding outside. The caster 32 is a low-floor caster type in which the wheel 325 is pivotally supported on a flat support 323 and the rolling direction of the wheel 325 changes as the support 323 rotates horizontally, and the flat support 323 has a maximum vertical dimension h that is set to a value smaller than its maximum horizontal dimension s.

[0022] The caster seat 321 is also equipped with an adjuster 33. As shown in FIG. 11, the adjuster 33 can be moved between a retracted position, in which the entire load is borne by the caster 32, and a protruding position, in which the entire load is not borne by the caster 32. That is, by lowering the adjuster 33 to the protruding position, the caster 32 can be placed in a light contact state, in which no load is applied, or in a state in which the caster 32 is raised above the floor. The adjuster 33 includes a threaded rod 331 threadedly attached to the caster seat 321 and a grounding portion 332 at the lower end of the threaded rod 331. The upper end of the threaded rod 331 is formed with an engagement portion, such as a hexagonal hole, for engaging a height-adjusting tool (not shown). The upper plate 313 of the frame member 31 is formed with a tool insertion hole 313a corresponding to the engagement portion of the adjuster 33, so that the height of the adjuster 33 can be adjusted by rotating the threaded rod 331 from inside the room. Specifically, the upper plate 313 of the frame material 31 in the base frame 3 has the panels 1 and 2 for the peripheral walls placed on its outer half, and the tool insertion hole 313a described above is arranged on its inner half.

[0023] As mentioned above, booth B comprises panels 1 and 2 for the peripheral walls, a door frame 4 arranged adjacent to these panels 1 and 2, and a base frame 3 that supports these panels 1 and 2 and door frame 4 from below.The door frame 4 has a frame material removal portion 4B at a position corresponding to the frame material removal portion 3B of the base frame 3, and cooperates with the base frame 3 to form a frame structure that has a closed loop shape when viewed from above.

[0024] 2, 12 and 13, the door frame 4 is a gate-shaped structure having a pair of support posts 41 erected at the open end 31a of the base frame 3 and a cross member 42 connecting the upper ends of these support posts 41, with a frame material removal portion 4B being disposed between the lower ends of both support posts 41. The upper ends of the peripheral wall panels 1 and 2 and the upper end of the door frame 4 disposed adjacent to these panels 1 and 2 are fastened to the ceiling panel 9 and connected to each other.

[0025] As shown in Fig. 5, the horizontal width w of the base frame 3 is set to a value corresponding to the sum of the thickness t1 of the peripheral wall panels 1 and 2 and the thickness t2 of the support pillar 41. The peripheral wall panels 1 and 2 are placed on the outer half of the base frame 3, and the support pillar 41 of the door frame 4 is erected on the inner half of the base frame 3. The inner side of the front end of the peripheral wall panel 1 located on the side of the booth B is connected to the outer side of the support pillar 41 via a connector 6 that engages when the panel 1 is lowered relative to the support pillar 41, as will be described later and as shown in Figs. 3 and 13. The base frame 3 is provided with a fastener 34 that prevents the panel 1 from moving upward after connection. The fixing device 34 is plate-shaped and has a bolt insertion hole 34a. By passing a bolt (not shown) through the bolt insertion hole 34a and screwing it into the panel 1, the panel 1 is prevented from moving upward relative to the base frame 3, and the connected state by the connecting device 6 is maintained.

[0026] 9 and 13, an upwardly projecting protrusion 314 is fixed by welding or the like to the upper surface of the base frame 3 near the open end 31a. The door frame 4 is fixed to the base frame 3 by fitting the lower end of the door frame 4 (the lower end of the support pillar 41) onto the protrusion 314 and fastening them together with screws.

[0027] Here, we will explain the connection between the peripheral wall panel 1 arranged on the base frame 3 and the support pillars 41 of the door frame 4. As described above, this booth B is made up of a plurality of peripheral wall panels 1, 2 and support pillars 41 erected on the base frame 3, and the panels 1, 2 are connected to each other and the panel 1 to the support pillars 41 by a common connector 6. As shown in Figures 13, 14 and 16 to 19, one end of the connector 6 engages with a slit 7s formed in the support pillar 41 or the panel 1, and the other end engages with a slit 8s formed in the other panel 1, 2.

[0028] 14 to 19, the connector 6 connects a first plate-like portion 7 with a slit 7s that engages at one end to a second plate-like portion 8 with a slit 8s that engages at the other end, with the first plate-like portion 7 constituting a part of the support 41 or the panel 1, and the second plate-like portion 8 constituting a part of the other panel 1, 2. More specifically, the connector 6 used on the front side of the booth B, as shown in FIGS. 13 and 14, is for connecting the outer plate portion 411 (first plate-like portion 7) of the support 41 in the door frame 4 to the inward vertical plate portion 113 (second plate-like portion 8) of the panel 1 located on the side of the booth B. In addition, the connector used on the rear side of booth B is intended to connect the rearward-facing vertical plate portion 116 (first plate-shaped portion 7) of the peripheral wall panel 1 located on the side of booth B to the forward-facing vertical plate portion 213 (second plate-shaped portion 8) of the peripheral wall panel 2 located on the back of booth B, as shown in Figures 13 and 15.

[0029] Thus, the peripheral wall panel 1 located on the side of booth B and the peripheral wall panel 2 located on the rear of booth B are connected by tightly engaging their curved joint surfaces 1a, 2a, as shown in Figures 8, 13, and 15. A part of the joint surface 1a of one panel 1 (rear-facing vertical plate portion 116) forms the first plate-like portion 7, and a part of the joint surface of the other panel 2 that is in close contact with this first plate-like portion 7 (forward-facing vertical plate portion 213) forms the second plate-like portion 8.

[0030] As shown in Figures 14 to 19, the connecting device 6 comprises a bridging member 61 that passes through both slits 7s, 8s of the first and second plate-shaped portions 7, 8 to be connected, a first claw member 62 that is provided at one end of the bridging member 61 and engages with the inner surface of the first plate-shaped portion 7, and a second claw member 63 that is provided at the other end of the bridging member 61 and engages with the inner surface of the second plate-shaped portion 8, and is made integrally from, for example, a metal plate.

[0031] As shown in Figures 14 to 19, the first claw member 62 and the second claw portion 63 of the connecting device 6 respectively include upward claw portions 621, 631 that extend above the bridging member 61, and downward claw portions 622, 632 that extend below the bridging member 61. The upward claw portion 621 and the downward claw portion 622 of the first claw member 62 and the upward claw portion 631 and the downward claw portion 632 of the second claw member 63 have mutually different shapes, and as will be described later, can be engaged with slits 7s, 8s of different shapes.

[0032] As shown in Fig. 18, the slit 7s of the first plate-shaped portion 7 has an opening dimension d1 that is shorter than the vertical dimension h2 of the first claw member 62 of the connector 6, and is sized so that the first claw member 62 can be engaged with the slit 7s by a pushing action, as shown in Fig. 17. Also, as shown in Fig. 18, the slit 8s of the second plate-shaped portion 8 has an opening dimension d2 that is longer than the vertical dimension h3 of the second claw member 63 of the connector 6, and is configured so that the first plate-shaped portion 7 and the second plate-shaped portion 8 can be connected together as shown in Fig. 19 by moving the first plate-shaped portion 7 and the second plate-shaped portion 8 relative to each other with the second claw portion 63 inserted into the slit 8s of the second plate-shaped portion 8.

[0033] More specifically, at the front of booth B, as shown in Fig. 14, a first plate-like portion 7 is arranged on the outer surface of a support pillar 41, and a second plate-like portion 8 is arranged on the inner surface of a peripheral wall panel 1 located on the side of booth B, with the front end of this panel 1 attached to the support pillar 41 via a connector 6. At the rear of booth B, as shown in Fig. 15, the peripheral wall panel 1 located on the side of the booth and the peripheral wall panel 2 located on the rear of the booth are connected by tightly engaging their curved joint surfaces 1a, 2a, and the first and second plate-like portions 7, 8 constituting both joint surfaces 1a, 2a are connected to each other via the connector 6.

[0034] Here, a procedure for assembling the door frame 4 and the peripheral wall panel 1 will be specifically described. First, from the state shown in FIG. 16 , the first claw members 62 of the connectors 6 are attached to the slits 7s provided in the outer plate portions 411 (first plate-like portions 7) of the support posts 41 of the door frame 4 by a pawl action, via the state shown in FIG. 17 . In this embodiment, four connectors 6 are attached to each of the left and right support posts 41 at regular intervals in the vertical direction. Thereafter, as shown in FIG. 18 , the panel 1, with the slits 8s of the inward vertical plate portions 113 (second plate-like portions 8) corresponding to the connectors 6, is pressed against the support posts 41, whereby the second claw members 63 of the connectors 6 can be inserted into the slits 8s of the panel 1. In this state, the panel 1 is lowered relative to the support posts 41, whereby the panel 1 and the support posts 41 are connected via the connectors 6, as shown in FIG. 19 . In this state, by screwing the rear end of the lower edge of the panel 1 to the fixture 34 of the base frame 3, the panel 1 is prevented from moving upward, and the connected state is maintained. From this state, the first claw members 62 of the connectors 6 are attached by a pushing motion to the slits 7s formed in the rear-facing vertical plate portion 116 (first plate-like portion 7) located at the rear end of the peripheral wall panel 1 located on the side of the booth B, as shown in Figure 17. In this embodiment, four connectors 6 are attached to each of the left and right panels 1 at regular intervals in the vertical direction. 18, the panel 2 for the peripheral wall located at the back of booth B, with the slits 8s of the forward-facing vertical plate portions 213 (second plate-like portions 8) aligned with each connector 6, is pressed against the rear end of the panel 1 located at the side of booth B, whereby the second claw portions 63 of each connector 6 can be inserted into the slits 8s of the panel 2. In this state, the panel 2 located at the back of booth B is lowered relative to the panel 1 located at the side of booth B, whereby the panels 1 and 2 are connected to each other via the connector 6, as shown in FIG. 19. In this state, the door frame 4 and the panels 1 and 2 are fastened to the ceiling main body 91 of the ceiling panel 9 with screws or the like, whereby the relative vertical movement between the panel 2 for the peripheral wall located at the back of booth B and the panel 1 for the peripheral wall located at the side of booth B is prohibited, and therefore the connected state of the panels 1 and 2 by the connector 6 is maintained. Note that the number of connectors 6 is not limited to that described above and may be set arbitrarily.

[0035] The door panel 5 arranged inside the door frame 4 has its hanging point on the right side when viewed from the front, and is supported on the door frame 4 via a hinge 53 so that it can be opened and closed, as shown in Figures 1, 2, 5, 6, 12 and 13.

[0036] Thus, this booth B is portable as described above, and the base frame 3 has a frame member continuation section 3A where frame members 31 are continuously arranged, and a frame member removal section 3B formed between the open ends 31a of the frame members 31. The frame member continuation section 3A supports the panels 1 and 2, and a door panel 5 is arranged in the frame member removal section 3B so that it can be opened and closed. As shown in Figures 7 and 12, the door panel 5 has a floor-contact member 54 at its lower end that protrudes and retracts toward the floor surface in response to opening and closing operations.

[0037] Specifically, booth B has an interior space S formed by covering at least three sides, excluding the front, with peripheral panels 1 and 2. Base frame 3 has a frame-continuous portion 3A where frame material 31 is continuously arranged and a frame-removed portion 3B where frame material 31 is partially removed. Door panel 5 is disposed on the front where frame-removed portion 3B is formed. As shown in FIGS. 7 and 9 , door panel 5 is provided with a button 56 on its front edge 5a on the hinge side that abuts against door frame 4 and is pushed inward when the door is closed. A member drive mechanism 58 is provided that, when button 56 is pushed, moves floor-contact member 54 from a standby position (H) spaced apart from floor F to a floor-contact position (L) where floor F is in contact. This member drive mechanism 58 converts the protruding and retracting motion of button 56 into the raising and lowering motion of floor-contact member 54. In this embodiment, this mechanism is formed using an automatic door bottom (model DB-400, manufactured by Shibutani Co., Ltd.). 22, it uses a screw shaft 580 screwed into a female screw hole 56a formed in the button 56, a movable element 581 connected to the button 56 via the screw shaft 580, a stator 582 fixed to the door panel 5, and a leaf spring 583 having one end 583a connected to the movable element 581, the other end 583b connected to the stator 582, and a central portion 583c connected to an extrusion member 57 described below. When the door is open, as shown in FIG. 22(a), the extrusion member 57 and the floor-contact member 54 held by the extrusion member 57 are held in the standby position (H) via the leaf spring 583. On the other hand, when the door is closed, the sinking motion of the button 56 is transmitted to the leaf spring 583 via the screw shaft 580 and the movable element 581, and the leaf spring 583 elastically deforms as shown in (b) of Figure 22, so that the extrusion member 57 and the floor contact member 54 are pushed down to the floor contact position (L).

[0038] Here, a rotation-preventing piece 584 and a spring 585 that biases the rotation-preventing piece 584 toward the button 56 are fitted onto the screw shaft 580. The cross-sectional shape of the rotation-preventing piece 584 is the same as the cross-sectional shape of a guide groove 55a formed in the component holding frame 55, which will be described later, and the rotation of the button 56 is prevented by the rotation-preventing piece 584 fitting into the guide groove and the tip end of the rotation-preventing piece 584 engaging with the base end of the button 56.

[0039] The tip of the button 56 can be engaged with a jig such as a screwdriver, and the operation timing of the member drive mechanism 58 can be changed by threading the button 56 forward or backward relative to the screw shaft 580. Specifically, if the amount of projection of the button 56 from the fore-end face 5a on the hanging side when the door is open is increased, the extrusion member 57 and the floor-contact member 54 will descend earlier when the door is closed. Conversely, if the amount of projection of the button 56 from the fore-end face 5a on the hanging side is reduced, the timing at which the extrusion member 57 and the floor-contact member 54 will descend when the door is closed will be delayed. Furthermore, when the door is moved by the casters 32, if the amount of projection of the button 56 from the fore-end face 5a on the hanging side when the door is open is further reduced, the extrusion member 57 and the floor-contact member 54 will not reach the floor F even when the door is completely closed. In other words, the floor-contact member 54 will retreat to a standby position (H) away from the floor F.

[0040] In other words, the female threaded hole 56a formed in the button 56 and the screw shaft 580 screwed into this female threaded hole 56a function as an operation timing adjustment mechanism T for changing the operation timing in the member drive mechanism, and as a member retraction mechanism E for exceptionally retracting the floor-contacting member 54 to a standby position (H) away from the floor surface F even when the door is closed during movement by the casters 32.

[0041] As shown in Figures 1, 2, 5 to 7, and 12, the door panel 5 is mainly composed of a door body 50 made of, for example, sheet metal that corresponds to the interior shape of the door frame 4, and a window 51 fitted with a transparent plate 51a is formed in the center of the door body 50. A channel-shaped member holding frame 55 that is open downward is embedded in the lower edge of the door body 50, and the aforementioned floor contact member 54 is housed within this member holding frame 55 so that it can protrude and retract relative to the floor surface F. A member driving mechanism 58 is also housed within this member holding frame 55. The floor contact member 54 is made of an elastic material such as rubber, and is held, for example, by the lower edge of an extrusion member 57 that is housed within the member holding frame 55 so that it can rise and fall. Reference numeral 52 denotes a handle.

[0042] The ceiling panel 9 is mainly composed of a ceiling main body 91 made of, for example, sheet metal. As shown in Figures 3, 4, 12, and 20, the ceiling main body 91 has a rectangular shape in a plan view and closes the top surface of the interior space S. As shown in Figure 20, a ceiling front frame 911 is provided at the front edge, side flanges 912 are provided at the left and right side edges, and a rear flange 913 is provided at the rear edge, all of which are integrally erected. The ceiling front frame 911 is screwed to the cross member 42 of the door frame 4, the side flanges 912 are screwed to the inner surface of the upper end of a peripheral wall panel 1 located on the side of booth B, and the rear flange 913 is screwed to the inner surface of the upper end of a peripheral wall panel 2 located at the back of booth B. A plurality of ceiling reinforcing members 914 extending left and right are fixed to the top surface of the ceiling main body 91 at intervals in the front and rear directions by welding or the like.

[0043] 3 and 20, an upper cover 92 having an opening 92a that avoids interference with a storage tank 941 and a tank retainer 95 (described later) is attached to the upper surface of the ceiling main body 91, and a fire extinguisher support plate 93 is provided on the underside of the upper cover 92. An automatic fire extinguisher 94 is placed on the fire extinguisher support plate 93. The automatic fire extinguisher 94 is a conventional device that includes a storage tank 941 that stores a fire extinguishing agent, a spray nozzle 942 protruding from the center of the underside of the storage tank 941, and temperature detection means, and is configured to spray the fire extinguisher in the storage tank 941 from the spray nozzle 942 toward the internal space S when the temperature detection means detects that the temperature inside the internal space S has risen. In this embodiment, a commercially available product (SPA-5 Type Sprinkler Ace: product name, manufactured by Nippon Dry Chemical Co., Ltd.) is used as the automatic fire extinguisher 94. The storage tank 941 of this automatic fire extinguisher 94 is a flattened sphere with the largest diameter at its equatorial portion 941a in the vertical center, and this storage tank 941 is placed on a fire extinguisher support plate 93. A circular through-hole 93a having a diameter slightly smaller than the diameter of the equatorial portion 941a of the storage tank 941 is formed in the fire extinguisher support plate 93, and the storage tank 941 can be stably held by fitting the lower half of the storage tank 941 into this through-hole 93a. When the storage tank 941 is stably held on the fire extinguisher support plate 93, an injection nozzle 942 incorporating a temperature detection means faces the interior space S through an opening 91a drilled in the ceiling main body 91. In this embodiment, a tank retainer 95 is detachably attached to one location on the fire extinguisher support plate 93 by a screw or the like. The tank holder 95 has a tank locking portion 951 at its upper end that holds down the portion of the storage tank 941 above the equator portion 941a, preventing the storage tank 941 from floating up from the fire extinguisher support plate 93. Reference numeral 96 denotes an air vent. Reference numeral 97 denotes a ventilation fan.

[0044] FIG. 1 is a perspective view of booth B according to this embodiment. FIG. 2 is a front view of booth B according to this embodiment. FIG. 3 is a cross-sectional view taken along line XX in FIG. 2. FIG. 4 is a plan view of booth B according to this embodiment. FIG. 5 is a cross-sectional view taken along line YY in FIG. 2. FIG. 6 is a bottom view of booth B according to this embodiment. FIG. 7 is an enlarged view of the lower end portion of FIG. 3. FIG. 8 is an enlarged view of the rear end portion of FIG. 5. FIG. 9 is an enlarged view of the front end portion of FIG. 5. FIG. 10 is an enlarged view of the rear end portion of FIG. 6. FIG. 11 is a cross-sectional view taken along line ZZ in FIG. 10. FIG. 12 is a perspective view from the bottom side of booth B according to this embodiment, showing a state in which the door body 50 is open. FIG. 13 is an exploded perspective view showing how peripheral wall panels 1 and 2 are attached to the base frame 3 and the door frame 4. FIG. 14 is an exploded perspective view showing how peripheral wall panel 1, located on the side of booth B, is attached to the support 41. FIG. 15 is an exploded perspective view showing how peripheral wall panels 1 and 2 are connected to each other. 16 to 19 are explanatory diagrams showing the procedure for connecting components according to this embodiment. More specifically, FIG. 16 shows the state immediately before the connector 6 is attached to the slit 7s provided in the first plate-shaped portion 7. FIG. 17 shows the state in which the upward claw portion 621 of the first claw member 62 of the connector 6 is inserted into the slit 7s provided in the first plate-shaped portion 7. FIG. 18 shows the state in which the first claw member 62 of the connector 6 is inserted into the slit 7s provided in the first plate-shaped portion 7 and the second plate-shaped portion 8 is brought close to the connector 6. FIG. 19 shows the state in which the first claw member 62 of the connector 6 is inserted into the slit 7s provided in the first plate-shaped portion 7 and the second claw member 63 is inserted into the slit 8s provided in the second plate-shaped portion 8. FIG. 20 is an exploded perspective view showing the ceiling panel 9 of booth B according to this embodiment. FIG. 21 is a cross-sectional view taken along line WW in FIG. 5. Figure 22 is a schematic diagram showing the operation of the member drive mechanism 58 and the floor-contacting member 54 when the door is opened and closed, where (a) in the figure shows the state when the door is open and the button 56 protrudes from the end face 5a on the hanging side, and (b) in the figure shows the state when the door is completely closed and the floor-contacting member 54 is lowered.

[0045] <Effects of the embodiment> With this configuration, the casters 32 are arranged in a position recessed inside the base frame 3, with some exceptions, so that even though the chair can be moved using the casters 32, the gaps SP (SP1, SP2, SP3) formed between the lower end of the base frame 3 and the floor F as shown in Fig. 21 can be made as small as possible. This makes it possible to effectively prevent sound from the internal space S from leaking to the outside through the gaps SP.

[0046] In particular, in this embodiment, the casters 32 are of a low-floor caster type, in which wheels 325 are pivotally supported on flat supports 323, and the rolling direction of the wheels 325 changes with the horizontal rotation of the supports 323. Therefore, even if most of the casters 32 are disposed inside the base frame 3, the vertical dimension of the base frame 3 does not become excessively large.

[0047] Furthermore, in this embodiment, the base frame 3 has a frame material continuation portion 3A and a frame material removal portion 3B, and the panels 1 and 2 are supported on the frame material continuation portion 3A, and the door panel 5 is arranged in the frame material removal portion 3B so that it can be opened and closed.This eliminates the step between the internal space S and the external space O, and allows smooth entry and exit to the internal space S with the door body 50 of the door panel 5 open even while sitting in the wheelchair.

[0048] In this embodiment, the frame member 31 of the base frame 3 is channel-shaped and includes an outer panel 311, an inner panel 312, and an upper panel 313 connecting the upper edges of the outer panel 311 and the inner panel 312. Therefore, as shown in FIG. 21 , the gap SP1 between the lower edge 311 of the outer panel and the floor F, the gap SP2 between the upper panel 313 and the floor F, and the gap SP3 between the lower edge of the inner panel 312 and the floor F change sequentially from small to large to small. As a result, the interior space S and the exterior space O are partitioned by multiple types of gaps SP1, SP2, and SP3 that can provide a labyrinth-like effect, thereby effectively suppressing sound leakage. In this case, the width w from the outer panel 311 to the inner panel 312 is set larger than the thickness t1 of the panels 1 and 2, thereby expanding the area in which the labyrinth-like effect can be provided, resulting in particularly favorable sound leakage prevention.

[0049] In addition, the width dimension w from the outer plate 311 to the inner plate 312 of the frame material 31 is set to be larger than the thickness dimension t1 of the peripheral wall panels 1 and 2. Therefore, for example, the peripheral wall panels 1 and 2 can be supported on the outer half of the frame material 31, and then a tool insertion hole 313a corresponding to the engagement portion of the adjuster 33 can be provided in the inner half of the upper plate 313 of the frame material 31, and a tool can be inserted into this tool insertion hole 313a, allowing the adjuster 33 to be adjusted from the internal space S side.

[0050] Furthermore, in this embodiment, a door panel 5 is arranged in an openable and closable manner in the frame material cut-out portion 3B, and this door panel 5 has a floor contact member 54 at its lower end that protrudes and retracts toward the floor surface F in response to the opening and closing operation, so that when the door is closed, the floor contact member 54 is lowered to the floor contact position (L) so that it comes into contact with the floor surface F, thereby preventing or suppressing sound leakage from the internal space S. In other words, in such a booth B that does not have a base panel to close off the underside of the internal space S, the problem of sound leakage easily occurring between the internal space S and the external space O can be solved.

[0051] In addition, an internal space S is formed by covering at least three sides except the front with peripheral wall panels 1 and 2, and the base frame 3 has a frame material continuous portion 3A where frame material 31 is continuously arranged and a frame material removed portion 3B where the frame material 31 has been partially removed, and a door panel 5 is arranged on the front where the frame material removed portion 3B is formed, so there is no step between the internal space S and the external space O, and even when sitting in a wheelchair, it is possible to smoothly enter and exit the internal space S with the door body 50 of the door panel 5 open.

[0052] In addition, the small end surface 5a on the hanging side of the door panel 5 is provided with a button 56 that abuts against the door frame 4 and is pushed inward when the door is closed, and a member drive mechanism 58 is provided that, when this button 56 is pushed in, moves the floor contact member 54 from a standby position (H) away from the floor surface F to a floor contact position (L) in contact with the floor surface F.Therefore, the floor contact member 54 is set to the floor contact position (L) only when the door is closed, when it is necessary to prevent or suppress sound leakage between the internal space S and the external space O, and the floor contact member 54 is kept in the standby position (H) in other cases, allowing the door to be opened and closed smoothly.

[0053] Furthermore, the female threaded hole 56a formed in the button 56 and the screw shaft 580 screwed into this female threaded hole 56a function as an operation timing adjustment mechanism T for changing the operation timing in the member driving mechanism 58, so that the timing of the raising and lowering operation of the floor-contacting member 54 can be adjusted to correspond to the material of the floor surface F, etc.

[0054] The above-mentioned female screw hole 56a and screw shaft 580 function not only as the operation timing adjustment mechanism T, but also as a member retraction mechanism E for exceptionally retracting the floor-contacting member 54 to the retracted position (H) even when the door is closed.As described above, by reducing the protruding width of the button 56 when the door is open and allowing the floor-contacting member 54 to be retracted to the retracted position (H) even when the door is closed, it is possible to facilitate the movement of this booth B using the casters 32.

[0055] The present invention is not limited to the above-described embodiment.

[0056] For example, if the casters are arranged in a position where most of them are recessed inside the base frame, it is not necessary to arrange low-profile casters inside the frame material of a base frame constructed using a channel-shaped frame material as in the above-mentioned embodiment. However, if the low-profile casters are configured so that the wheels are pivotally supported on a flat support body and the rolling direction of the wheels changes as the support body rotates horizontally, as described above, even if most of the casters are arranged inside the base frame, the vertical dimension of the base frame can be prevented from becoming excessively large. Furthermore, if the casters are arranged inside the frame material of a base frame constructed using a channel-shaped frame material, the frame material formed by extrusion processing or the like can be used as is without specially providing recesses in the frame material to accommodate the casters, thereby preventing an increase in processing time.

[0057] The shape of the base frame is not limited to the above-described embodiment in which a frame material removal portion is provided on the front surface, but may also be provided on the side surface.Furthermore, the shape is not limited to the embodiment in which a frame material removal portion is provided over substantially the entire width of the front surface, or the embodiment in which a frame material removal portion is provided over substantially the entire depth of the side surface, but various other shapes may be adopted, such as a shape in which a frame material removal portion is provided only on a portion of the front surface or side surface, or a shape in which a frame material removal portion is provided across the front surface and side surface.

[0058] The number of panels is not limited to three. In other words, the panels for the peripheral walls located on the sides or back of the booth may be divided into multiple pieces, and if the booth has a frame removal area only on a portion of the front or side, panels may also be supported on other parts of the front or side, i.e., the parts where the frame is continuous.

[0059] In the illustrated example, the table top is set to a height that can be used conveniently in a seated position, but it may also be set to a height that can be used conveniently in a standing position.

[0060] Furthermore, the member drive mechanism that moves the floor-contact member from a standby position away from the floor to a floor-contact position where the floor is in contact with the floor when the door is closed may have a configuration other than that of the above-described embodiment, such as a mechanism that uses a magnet embedded in at least one of the door panel and the door frame.

[0061] The operation timing adjustment mechanism and the member retraction mechanism may also be configured in a manner other than that of the embodiment described above, or may be omitted.

[0062] In addition, various modifications may be made without departing from the spirit of the present invention. [Explanation of symbols]

[0063] B…Booth 1, 2...Perimeter wall panels 3...Base frame 3A...Continuous frame section 3B… Frame material removed part 31…Frame material 32...Caster 5...Door panel 5a...End surface of the hanging side 54...Floor contact member 56...Button 58...Component drive mechanism S...interior space T...Operation timing adjustment mechanism E...Component evacuation mechanism (H)…Standby position (L)…ground contact position

Claims

1. A portable booth in which peripheral wall panels are supported on a base frame and casters are provided on the base frame to make it movable, The base frame has a frame member continuous portion where frame members are continuously arranged and a frame member removed portion formed between the open ends of the frame members, and the panel is supported by the frame member continuous portion, and a door panel is arranged in the frame member removed portion so as to be openable and closable, The door panel includes a door body and a floor-contact member at a lower end of the door body, the floor-contact member having substantially the same longitudinal dimension as the lower end of the door body, and the floor-contact member moving from a standby position away from the floor surface to a floor-contact position in contact with the floor surface in response to opening and closing operations, The floor-contacting member is positioned at the standby position when the door is open, and is positioned at the floor-contacting position when the door is closed.

2. An interior space is formed by covering at least three sides excluding the front with the peripheral wall panels, The base frame has a frame material continuous portion where frame materials are continuously arranged and a frame material removed portion where the frame materials are partially removed, 2. The booth according to claim 1, wherein the door panel is disposed on the front side where the frame material removed portion is formed.

3. The door panel is provided with a button on the end surface on the hanging side that abuts against the door frame and is pushed inward when the door is closed, and a member drive mechanism is provided that moves the floor-contacting member from the standby position to the floor-contacting position when this button is pushed in.

4. 4. The booth according to claim 3, further comprising an operation timing adjustment mechanism for changing the operation timing of said member driving mechanism.

5. 5. The booth according to claim 1, further comprising a member retraction mechanism for exceptionally retracting the floor-contacting members to a retracted position even when the door is closed during movement by the casters.

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