Lock structure of sliding door and panel booth

Abstract

To provide a lock structure of a sliding door, which enables whether or not the sliding door is locked to be easily recognized even from an external remote place, and a panel booth equipped with the lock structure.SOLUTION: The locking portion 4 provided in the panel booth 2 is formed with the inserted portion side 42a into which the plate-shaped lock member 5 can be inserted from the inside of the first front panel 23 and the indication window through which the inside of the locking portion 4 can be exposed to the outside of the first front panel 23, and the lock member 5 is formed with the insertion portion 51 inserted into the inserted portion side 42a and the restricting portion 52 extending from the locking portion 4 toward the inside of the first front panel 23 when the insertion portion 51 is inserted into the inserted portion side 42a. When the insertion part 51 is inserted into the inserted part 42a in the closed state of the slide door, the insertion part 51 is exposed to the outside of the first front panel 23 through the indication window, and the regulation part 52 is positioned in the vicinity of the side end face of the door panel 29 to regulate the relative slide displacement of the first front panel 23 and the door panel 29.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a locking structure for a sliding door that locks a sliding door made up of two panel bodies in a closed state, and to a panel booth equipped with this locking structure. [Background technology]

[0002] BACKGROUND ART Conventionally, as a structure for locking a sliding door in a closed state, a configuration in which a lock is inserted into another plate material adjacent to the sliding door is known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-911 Summary of the Invention [Problem to be solved by the invention]

[0004] In the lock structure described in the above patent document, it is difficult to determine from the outside whether the sliding door is locked or not, so in order to confirm that it is locked, it is necessary to approach the sliding door and apply force directly to it.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and the problem that the present invention aims to solve is to provide a locking structure for a sliding door, and a panel booth equipped with this locking structure, which makes it possible to easily determine whether the door is locked or not, even from a remote location outside. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the present invention provides the following lock structure for a sliding door.

[0007] (1) A locking structure for a sliding door, which includes an outer panel having an inner surface and an outer surface, and an inner panel provided at a position overlapping the inner side of the outer panel, and in which an opening is opened and closed by the outer panel and the inner panel slidingly displacing relative to each other, for locking the sliding door in a closed state, wherein the outer panel is provided with a locking portion near the end of the sliding door on the inner panel side when the sliding door is in a closed state, the locking portion is provided so as to penetrate the outer panel in the thickness direction, and the locking portion has an insertion portion into which a plate-shaped locking member can be inserted from the inside of the outer panel, a locking structure for a sliding door, in which an indicator window that can expose the inside of the locking portion is formed on the outside of the outer panel, and the locking member is formed with an insertion portion that is inserted into the insertion portion and a regulating portion that extends from the locking portion toward the inside of the outer panel when the insertion portion is inserted into the insertion portion, and when the insertion portion is inserted into the insertion portion while the sliding door is in a closed state, the insertion portion is exposed to the outside of the outer panel through the indicator window, and the regulating portion is located near the side end face of the inner panel, thereby regulating relative sliding displacement between the outer panel and the inner panel.

[0008] (2) A locking structure for a sliding door described in (1), in which a closed indication indicating that the sliding door is in a closed state is printed on one side of the insertion portion, and the locking portion, when the insertion portion is inserted into the insertion portion, exposes the closed indication through the display window to indicate to the outside that the sliding door is in a closed state.

[0009] (3) A locking structure for a sliding door described in (2), in which an open indication indicating that the sliding door is in an open state is printed on the inner surface of the locking part, and the locking part displays the open indication through the display window when the insertion part is not inserted into the insertion part, thereby indicating to the outside that the sliding door is in an open state.

[0010] (4) A lock structure for a sliding door as described in (3), in which a transparent plate is provided in the display window.

[0011] (5) A lock structure for a sliding door described in (1), wherein the insertion portion of the lock member is inserted into the insertion portion at an angle within the range of 0 degrees to 45 degrees relative to the inner surface of the outer panel.

[0012] (6) The lock structure for a sliding door described in (1), wherein the lock member is formed by bending the restricting portion in an out-of-plane direction of the insertion portion.

[0013] (7) The locking member is formed with a regulating piece extending from one side end of the tip of the regulating portion, and when the insertion portion is inserted into the insertion portion while the sliding door is in a closed state, the regulating piece is positioned near the inner surface of the inner panel, thereby regulating the relative distance between the outer panel and the inner panel. (6) A locking structure for a sliding door as described above.

[0014] (8) A locking structure for a sliding door as described in (1), wherein the inner panel is provided with a retaining member that holds the locking member at a location located near the locking portion when the sliding door is in a closed state.

[0015] (9) A lock structure for a sliding door according to (8), wherein the lock member is connected to the inner panel near the retaining member by a string-like body. (10) A lock structure for a sliding door as described in (1), wherein the outer panel is configured as a fixed panel and the inner panel is configured as a slidingly displaceable door panel.

[0016] In addition, in order to solve the above-mentioned problems, the present invention configures the following panel booth.

[0017] (11) A panel booth that forms a closed space by the locking structure for a sliding door described in any one of (1) to (10) and a plurality of other panel bodies.

[0018] (12) The panel booth described in (11), wherein the plurality of other panel bodies and the locking structure of the sliding door are foldable. [Effects of the Invention]

[0019] The locking structure for a sliding door according to the present invention has the effect of making it possible to easily determine whether the door is locked or not from a remote location outside. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 10 is a front perspective view showing the panel booth with the sliding door in an open state. [Figure 2] FIG. 10 is a front perspective view showing the sliding door of the panel booth in a closed state. [Figure 3] FIG. 2 is a rear perspective view showing the state in which the door panel is open. [Figure 4] FIG. 4 is a rear perspective view showing the door panel in a closed state. [Figure 5] FIG. [Figure 6] 1A is a perspective view of the locking portion, and FIG. 1B is a rear perspective view showing the state in which the locking member is inserted into the locking portion. [Figure 7] FIG. [Figure 8] XX line cross section in FIG. 4. [Figure 9] Cross-sectional view taken along line YY in FIG. 8. [Figure 10] FIG. 10 is an exploded perspective view of a locking section according to a modified example. [Figure 11] 10A is a perspective view of a locking portion in a modified example, and FIG. 10B is a rear perspective view showing a state in which a locking member is inserted into the locking portion in the modified example. [Figure 12] FIG. 10 is a perspective view of a lock member according to a modified example. [Figure 13] FIG. 10 is a cross-sectional view of a locking section according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0021] A panel booth 2 equipped with a locking structure for a sliding door according to one embodiment of the present invention will be specifically described with reference to the drawings. In the following description, in the booth body 1 equipped with the panel booth 2, the side where the door panel 29 is provided (the lower left side in Figs. 1 and 2) is defined as the front of the booth body 1, and the right side when viewing the booth body 1 from the front (the lower right side in Figs. 1 and 2) is defined as the right side of the booth body 1.

[0022] As shown in Figure 1, the booth body 1 is composed of a panel booth 2 that can be assembled by folding, and a roof 3 that is provided on top of the panel booth 2. The booth body 1 can be used as a temporary toilet by placing a toilet bowl or the like inside.

[0023] 1 and 2, the roof 3 is a rectangular plate-like member with four sides bent downward. The roof 3 is connected to the panel booth 2 via connecting members 3a. The roof 3 can be removed from the panel booth 2 by releasing the connection between the connecting members 3a and the panel booth 2.

[0024] 1 and 2, the panel booth 2 is composed of a wall panel made up of multiple panel bodies connected so that they can rotate relative to one another, and a door panel 29 that can slide horizontally to open and close an opening 2a formed in the wall panel. A handle 6 is fixed to the left end of the door panel 29, halfway up and down.

[0025] The wall panels in the panel booth 2 are composed of a pair of side panels consisting of a right side panel 21 and a left side panel 22, a front panel provided at the front ends of the pair of side panels 21 and 22, and a rear panel provided at the rear ends of the pair of side panels 21 and 22.

[0026] The front panel is configured so that the first front panel 23 and the second front panel 24 are adjacent to each other and can rotate relatively. Specifically, the left end of the first front panel 23 and the right end of the second front panel 24 are connected by a connecting hinge 33, which allows the first front panel 23 and the second front panel 24 to rotate relatively. This allows the front panel to bend backward.

[0027] The first front panel 23 is one embodiment of the outer panel according to the present invention. The first front panel 23 has an outer surface facing the outside of the panel booth 2 (the surface shown in FIGS. 1 and 2) and an inner surface on the opposite side (the surface shown in FIGS. 3 and 4).

[0028] The right end of the first front panel 23 is rotatably connected to the front end of the right side panel 21. As shown in Figures 1 and 2, a front spacer 27 exposed at the front surface of the panel booth 2 is fixed to the front end of the right side panel 21. The right end of the first front panel 23 and the front spacer 27 are connected by a hinge (not shown), so that the first front panel 23 and the right side panel 21 can rotate relative to each other.

[0029] Additionally, the left end of the second front panel 24 is rotatably connected to the front end of the left side panel 22. Specifically, as shown in Figures 3 and 4, the left end of the second front panel 24 and the front end of the left side panel 22 are connected by a hinge 32, which allows the second front panel 24 and the left side panel 22 to rotate relatively to each other.

[0030] 3 and 4, the second front panel 24 in this embodiment is provided only at the upper end of the panel booth 2, and is open below. That is, the lower part of the second front panel 24 forms the opening 2a of the panel booth 2.

[0031] The rear panel is configured to be bendable forward by two adjacent panel bodies (not shown) that rotate relatively. The wall panel can be bent by bending the first front panel 23 and the second front panel 24 backward, and bending the rear panel forward. This allows the panel booth 2 to be folded with the pair of side panels 21 and 22 close to each other. In this case, the handle 6, guide rails 8, etc., which will be described later, are removed beforehand.

[0032] 3 and 4, in the panel booth 2, the door panel 29 is attached to the upper part of the inner surface of the first front panel 23 via slide rails 7. The door panel 29 is one embodiment of the inner panel according to the present invention, and is provided slidably at a position overlapping the inside of the first front panel 23.

[0033] The slide rail 7 is configured to include a fixed rail 73, an intermediate rail 74, and a movable rail 75. In this embodiment, the slide rail 7 is of a bearing type in which a rolling member rolls inside.

[0034] 3 and 4, the fixed rail 73 is fixed to the upper part of the first front panel 23 via a mounting frame 71 and a bracket 72. In this embodiment, the bracket 72 is detachable from the mounting frame 71.

[0035] The intermediate rail 74 is inserted into the fixed rail 73 and is provided to be slidable by moving forward and backward. The movable rail 75 is inserted into the intermediate rail 74 and is provided to be slidable by moving forward and backward, and is fixed to the upper part of the door panel 29 via a fixing member 76 as shown in Fig. 5. In this embodiment, the first front panel 23 and the door panel 29 can be attached and detached by attaching and detaching the bracket 72 to and from the mounting frame 71.

[0036] As described above, the door panel 29 is attached to the first front panel 23 via the slide rails 7, so that the door panel 29 can slide left and right to open and close the opening 2a. As shown in Figures 3 and 4, an upper guide member 9 is provided on the rear surface of the second front panel 24 to guide the sliding movement of the upper end of the door panel 29.

[0037] Additionally, a guide rail 8 is provided below the second front panel 24, between the lower end of the first front panel 23 and the lower end of the left side panel 22. The guide rail 8 guides the rolling of a roller 29a fixed to the lower part of the door panel 29.

[0038] As described above, in this embodiment, the sliding door is composed of the first front panel 23, which is a fixed panel, and the door panel 29. That is, the door panel 29, which is an inner panel provided inside the first front panel 23, slides and displaces relative to the first front panel 23, which is an outer panel, to open and close the opening 2a. In this way, the panel booth 2 according to this embodiment forms a closed space by the first front panel 23, the door panel 29, and multiple other panel bodies (right side panel 21, left side panel 22, rear panel, etc.) that constitute the sliding door.

[0039] In this embodiment, the first front panel 23, which is a fixed panel, is configured as the outer panel, and the slidable door panel 29 is configured as the inner panel, but it is also possible to configure the fixed panel as the inner panel and the door panel as the outer panel. In this case, the locking unit 4, which will be described later, is provided near the end of the door panel.

[0040] In this specification, the state in which the door panel 29 overlaps with the first front panel 23 to open the opening 2a as shown in Figures 1 and 3 is referred to as the "open state" of the sliding door. Also, the state in which the door panel 29 closes the opening 2a as shown in Figures 2 and 4 is referred to as the "closed state" of the sliding door.

[0041] The dimensions of the door panel 29 are 1000mm to 2500mm in height, 600mm to 1200mm in width, and 1mm to 20mm in thickness, and more preferably 1600mm to 2000mm in height, 900mm to 1200mm in width, and 5mm to 10mm in thickness to allow for easy passage for an average adult male and a wheelchair user. Also, the weight is preferably 0.1kg to 5kg, as the lighter the door, the easier it is to open and close.

[0042] In addition, the materials used for each panel body in the panel booth 2 can be resin, wood, metal, etc. Hollow plate materials can also be used as the panel bodies. It is preferable to use hollow resin plate materials for the panel bodies because they are light and easy to carry. The assembly structure of the panel booth 2 uses a method in which panels are inserted into the panel holding parts of the aluminum frame and fastened with rivets or screws.

[0043] The dimensions of each panel body are 1600mm to 2500mm in height, 600mm to 1500mm in width, and 1mm to 20mm in thickness, preferably 1600mm to 2500mm in height, 900mm to 1500mm in width, and 1mm to 20mm in thickness, because when the door panel and the panel member overlap, the panel member is larger than the door panel. Also, the weight of the entire booth is preferably 0.1kg to 8kg, because the smaller the total weight, the better for portability.

[0044] The booth body 1 using the panel booth 2 can be used for a wide variety of purposes, such as a temporary toilet, temporary changing room, nursing room, meditation space, prayer space, first aid space, meeting space, examination space, private office, etc.

[0045] The slide rails 7 employed in the panel booth 2 can be of the roller type, magnet type, sliding type, bearing type, etc. It is most preferable to employ the bearing type for the slide rails 7 because they can be operated with a light force by wheelchair users and other special needs persons. The slide rails 7 can be two-stage adjustable, three-stage adjustable, etc., but two-stage adjustable as in this embodiment is preferable because it balances strength and light weight while ensuring a wide opening.

[0046] The slide rails 7 used in the panel booth 2 can be made of metal (aluminum, stainless steel, etc.), resin, etc., with metal being most preferable for strength and durability. The slide rails 7 can be joined to the first front panel 23 by screws / bolts, adhesive, welding, fitting, etc., but screws / bolts are preferable for ease of disassembly when disposed of.

[0047] The panel booth 2 according to this embodiment is provided with a locking mechanism for locking the sliding door formed by the first front panel 23 and the door panel 29 in a closed state. The locking mechanism according to this embodiment is configured with a locking section 4 provided on the first front panel 23 and a locking member 5.

[0048] As shown in Fig. 4, the first front panel 23 is provided with a locking unit 4 near the right end of the door panel 29 when the sliding door is in the closed state. Therefore, when the sliding door is in the open state as shown in Fig. 3, the door panel 29 is located inside the locking unit 4. In other words, the locking unit 4 is exposed to the interior side of the panel booth 2 only when the door panel 29 closes the opening 2a and the sliding door is in the closed state, making it possible to insert the lock member 5 into the insertion portion 42a, which will be described later.

[0049] As shown in Figures 5 and 6(a), the locking unit 4 is formed by combining an outer member 41, an inner member 42, and a transparent plate 43. The outer member 41 is formed by combining or bending plate-like members. The outer member 41 has holes 41a that penetrate the outer member 41. Nuts 41b are fixed to the four corners of the rear surface of the outer member 41. A U-shaped insertion portion 41c that protrudes rearward is formed on the rear surface of the outer member 41.

[0050] In the outer member 41, a support plate 41d is formed inside the insertion portion 41c. A transparent plate 43 is inserted into the gap formed between the support plate 41d and the hole portion 41a. In this embodiment, the hole portion 41a and the transparent plate 43 form a display window for the locking unit 4. This display window allows the interior of the locking unit 4 to be exposed to the outside of the first front panel 23.

[0051] A plate-shaped inner member 42 is attached to the rear of the outer member 41. Specifically, as shown in Fig. 5, the inner member 42 is brought into contact with the inner surface of the first front panel 23 with the insertion portion 41c inserted from the front into the through-hole 23a opened in the first front panel 23.

[0052] Furthermore, by inserting screw members into fixing holes 42b formed in the four corners of the inner member 42 and through holes 23b opened in the first front panel 23 and screwing the screw members into nuts 41b, the inner member 42 is integrally assembled to the outer member 41. In this way, the locking unit 4 made up of the outer member 41, the inner member 42, and the transparent plate 43 is assembled to the first front panel 23.

[0053] In this way, the locking portion 4 according to this embodiment is provided so as to penetrate the first front panel 23 in the thickness direction. An insertion portion 42a that penetrates the inner member 42 is formed at the top of the inner member 42. The insertion portion 42a is a hole into which the insertion portion 51 of the plate-shaped lock member 5 can be inserted from the inside of the first front panel 23 when the sliding door is in the closed state.

[0054] The word "empty" is printed on the front surface of the inner member 42, which is the inner surface of the locking unit 4, as an open indicator 42c, which means that the sliding door is in an open state. When the insertion portion 51 of the locking member 5 is not inserted into the insertion portion 42a of the locking unit 4 (see Figures 1 and 6), the open indicator 42c is exposed through the indicator window. This makes it possible to indicate to the outside that the sliding door is in an open state.

[0055] The locking member 5 is formed by bending a plate-shaped member at a midpoint in the vertical direction. As shown in FIG. 7 , the portion of the locking member 5 below the bent portion is formed as an insertion portion 51, and the portion above is formed as a restriction portion 52. In this embodiment, the insertion portion 51 is formed to have a smaller width than the restriction portion 52. As described above, the insertion portion 51 is inserted into the insertion portion 42a of the locking unit 4 when the sliding door is in the closed state. Furthermore, as shown in FIGS. 8 and 9 , the restriction portion 52 extends from the locking unit 4 toward the inside of the first front panel 23 when the insertion portion 51 is inserted into the insertion portion 42a.

[0056] The words "in use" are printed on the front of the insertion portion 51 as a closed indicator 51a, which means that the sliding door is closed. When the insertion portion 51 of the locking member 5 is inserted into the insertion portion 42a of the locking unit 4 (see Figures 2 and 9), the closed indicator 51a of the insertion portion 51 is exposed through the indicator window. This makes it possible to indicate to the outside that the sliding door is closed.

[0057] In this embodiment, the character "empty" is used as the open indicator 42c and the character "in use" is used as the closed indicator 51a, but these display forms can also be configured in other ways. For example, other kanji characters, kana characters such as hiragana and katakana, multiple languages ​​such as English, Chinese, and Korean, pictures, marks, colors, and combinations of these can be used as the open indicator 42c or the closed indicator 51a as long as they are recognizable by outsiders.

[0058] When the inserting portion 51 is inserted into the receiving portion 42a with the sliding door in a closed state, the restricting portion 52 is positioned near the right side of the right end surface of the door panel 29, thereby restricting relative sliding displacement between the first front panel 23 and the door panel 29. Specifically, as shown in Fig. 9, when the inserting portion 51 is inserted into the receiving portion 42a, the restricting portion 52 extends toward the inside of the first front panel 23, and therefore the restricting portion 52 is positioned near the right side of the right end surface of the door panel 29. This prevents the door panel 29 from sliding in the opening direction, so the sliding door is locked in the closed state.

[0059] As described above, according to the lock structure of this embodiment, when the insertion portion 51 of the lock member 5 is inserted into the insertion receiving portion 42a of the locking unit 4 with the sliding door in a closed state, the closed indicator 51a of the insertion portion 51 is exposed to the outside of the first front panel 23 through the indicator window. Also, at this time, the restricting portion 52 is positioned near the side end face of the door panel 29, thereby restricting the relative sliding displacement of the first front panel 23 and the door panel 29. Therefore, a user outside the panel booth 2 can easily recognize from a distance that the sliding door is locked.

[0060] Furthermore, in the lock structure according to this embodiment, when the insertion portion 51 of the locking member 5 is inserted into the insertion portion 42a of the locking unit 4, the closed indicator 51a of the insertion portion 51 is exposed through the indicator window. This makes it possible to display to the outside that the sliding door is closed. Therefore, users outside the panel booth 2 can easily recognize from a distance that the sliding door is unlocked.

[0061] 7 and 9, in the lock structure according to this embodiment, the lock member 5 is formed with a restricting piece 53 extending from one left end of the tip of the restricting portion 52. When the insertion portion 51 is inserted into the insertion receiving portion 42a with the sliding door in a closed state, the restricting piece 53 is positioned near the inner surface of the door panel, thereby restricting the relative separation between the first front panel 23 and the door panel 29. This prevents the sliding door from being opened in a closed state by someone pushing the door panel 29 inward from the outside and inserting a hand to remove the lock member 5 from the locking portion 4 and put it in an open state.

[0062] Furthermore, in the lock structure according to this embodiment, a transparent plate 43 is provided in the display window of the locking unit 4. This makes it impossible to operate the locking member 5 from outside the panel booth 2 when the insertion portion 51 is inserted into the insertion portion 42a. This makes it possible to prevent the sliding door in the closed state from being opened by an operation from outside.

[0063] In the lock structure of this embodiment, in order to make it easier to insert and remove the insertion portion 51 into the insertion portion 42a, it is preferable that the insertion portion 51 of the lock member 5 is inserted into the insertion portion 42a at an angle relative to the inner surface of the first front panel 23 within the range of 0 degrees to 45 degrees.

[0064] In the lock structure according to this embodiment, the restricting portion 52 of the lock member 5 is formed so as to be bent in a direction out of the plane of the insertion portion 51. This makes it easier for the restricting portion 52 to extend from the locking portion 4 toward the inside of the first front panel 23 when the insertion portion 51 is inserted into the insertion receiving portion 42a.

[0065] In the lock structure according to this embodiment, as shown in Fig. 4, the door panel 29 is provided with a holding member 57 that holds the lock member 5 at a location (right end) that is located near the locking unit 4 when the sliding door is in a closed state. The holding member 57 is formed by bending a plate-like member, and is fixed to the inside surface of the door panel 29. This makes it possible to stably hold the lock member 5 when the sliding door is in an open state and the lock member 5 is not in use, as shown in Fig. 3.

[0066] In the lock structure according to this embodiment, the tip of a string-like body 55 is connected to the lock member 5 via a connecting ring 54. The base end of the string-like body 55 is fixed to the door panel 29 via a fixing portion 56 near the retaining member 57. In this way, the lock member 5 is connected to the door panel 29 near the retaining member 57 by the string-like body 55. This makes it possible for the string-like body 55 to hold the lock member 5 near the retaining member 57 and the locking portion 4, thereby reducing the risk of the lock member 5 being lost or stolen.

[0067] In the lock structure according to this embodiment, the lock member 5 may be plate-shaped, column-shaped, spiral-shaped, etc. When the lock member 5 is plate-shaped, the shape of the insertion portion 51 may be square, rectangular, circular, oval, trapezoidal, polygonal, etc. It is preferable that the insertion portion 51 be polygonal because this allows the lock member 5 to be locked according to the installation position.

[0068] Since the locking member 5 is structured to lock by contacting the door panel 29, it is possible to use a structure in which a rod-shaped member extends in addition to a structure in which a plate-shaped member is bent. From the viewpoint of ease of processing the locking member 5, a structure in which a plate-shaped member is bent as in this embodiment is preferable. When the restricting portion 52 is bent relative to the insertion portion 51 as in this embodiment, the bending angle between the insertion portion 51 and the restricting portion 52 can be 90 degrees or more and less than 180 degrees. From the viewpoint of ease of holding the locking member 5, it is preferable that the bending angle be 120 degrees or more and 140 degrees or less.

[0069] The locking unit 4 and the locking member 5 can be made of metals such as aluminum, iron, stainless steel, or resin, but metal is preferred because it is strong and rust-resistant. Furthermore, the locking member 5 is inserted into the inserted portion 42a at an angle of 0 to 180 degrees relative to the inner member 42 of the locking unit 4 so that the locking member 5 is visible from the outside. Furthermore, from the viewpoint of making the insertion portion 51 visible from the outside and making the insertion portion 51 easier to see from the outside, it is preferable that the insertion portion 51 of the locking member 5 be inserted into the inserted portion 42a at an angle of 0 to 45 degrees relative to the inner member 42 of the locking unit 4.

[0070] The shape of the locking unit 4 can be square, rectangular, circular, elliptical, trapezoidal, polygonal, etc. Rectangular is preferable for the locking unit 4 because it is easy to install and can be manufactured using a minimum amount of material. The size of the display window in the locking unit 4 can be 1600 to 10000 square mm. Furthermore, if the display window occupies 0.08 to 0.5% of the area of ​​the door panel 29, the visibility of the display window will be improved. The shape of the insertion portion 42a in the locking unit 4 can be square, rectangular, circular, elliptical, trapezoidal, polygonal, etc. Rectangular is preferable because it prevents the locking member 5 from moving unnecessarily.

[0071] The shape of the holding member 57 may be any shape that can hold the locking member 5, and may be square, rectangular, circular, oval, trapezoidal, polygonal, or the like. From the viewpoint of ease of processing, it is preferable that the holding member 57 be rectangular. If the holding member 57 is located away from the locking unit 4, it will be inconvenient for the user to lock / store the locking member 5, so it is preferable that the holding member 57 is located near the locking unit 4.

[0072] A long, irregularly shaped object can be used as the string-like body 55. From the viewpoint of preventing loss and misuse, it is preferable to use a spring reel as the string-like body 55. It is preferable to use metal as the material for the string-like body 55 to prevent theft.

[0073] Next, a locking structure according to a modified example of this embodiment will be described with reference to Figures 10 to 13. In this modified example, the configuration of the panel booth 2 is the same as in the above embodiment, so the following description will focus on the locking structure. The locking structure according to this modified example is configured with a locking section 104 provided on the first front panel 23 and a locking member 105.

[0074] As in the above embodiment, the first front panel 23 is provided with a locking portion 104 near the right end of the door panel 29 when the sliding door is in the closed state. Therefore, when the sliding door is in the open state, the door panel 29 is located inside the locking portion 104. In other words, the locking portion 104 is exposed to the interior side of the panel booth 2 only when the door panel 29 closes the opening 2a and the sliding door is in the closed state, allowing the locking member 105 to be inserted into the insertion portion 142a, which will be described later.

[0075] 10 and 11(a), the locking unit 104 is formed by combining an outer member 141, an inner member 142, a transparent plate 143, and a support member 144. The plate-shaped outer member 141 has a hole 141a that penetrates the outer member 141. Nuts 141b are fixed to the four corners of the rear surface of the outer member 141, and a lower support plate 141c is fixed below the hole 141a, and side support plates 141d·141d are fixed to both sides of the hole 141a so as to protrude rearward.

[0076] The support member 144 is formed by bending a plate material. A notch 144a is formed in the center of the support member 144. Insertion plates 144b are formed on both sides of the support member 144.

[0077] A transparent plate 143 is sandwiched between the rear surface of the outer member 141 and the front surface of the support member 144. When the support member 144 is attached to the outer member 141, the support member 144 is supported from below by the lower support plate 141c between the side support plates 141d. In this modification, the hole 141a, the transparent plate 143, and the cutout 144a form a display window for the locking unit 104. This display window allows the interior of the locking unit 104 to be exposed to the outside of the first front panel 23.

[0078] A plate-shaped inner member 142 is attached to the rear of the outer member 141, the transparent plate 143, and the support member 144. Specifically, as shown in Figure 10, insertion plates 144b are inserted from the front into through holes 23a opened in the first front panel 23, and the inner member 142 is brought into contact with the inner surface of the first front panel 23.

[0079] Furthermore, by inserting screw members into fixing holes 142b formed in the four corners of the inner member 142 and into insertion holes 23b opened in the first front panel 23 and screwing the screw members into nuts 141b, the inner member 142 is integrally assembled to the outer member 141. In this way, the locking unit 104 made up of the outer member 141, inner member 142, transparent plate 143, and support member 144 is assembled to the first front panel 23.

[0080] In this way, the locking portion 104 according to this modification is provided so as to penetrate the first front panel 23 in the thickness direction. An insertion portion 142a that penetrates the inner member 142 is formed at the top of the inner member 142. The insertion portion 142a is a hole into which the insertion portion 151 of the plate-shaped lock member 105 can be inserted from the inside of the first front panel 23 when the sliding door is in the closed state.

[0081] The character "open" is printed on the front surface of the inner member 142, which is the inner surface of the locking unit 104, as an open indicator 142c, which means that the sliding door is in an open state. When the insertion portion 151 of the locking member 105 is not inserted into the insertion portion 142a of the locking unit 104 (see FIG. 11), the open indicator 142c is exposed through the indicator window. This makes it possible to indicate to the outside that the sliding door is in an open state.

[0082] The locking member 105 is formed by bending a plate-shaped member at two points midway in the vertical direction. As shown in FIG. 12 , the portion below the lower bent portion of the locking member 105 is formed as an insertion portion 151, the portion above the upper bent portion is formed as a restriction piece 153, and the portion between the insertion portion 151 and the restriction piece 153 is formed as a restriction portion 152. In this modified example, the insertion portion 151 is formed to have a smaller width than the restriction portion 152 and is formed in a curved shape with a protruding front side. As described above, the insertion portion 151 is inserted into the insertion portion 142 a of the locking portion 104 when the sliding door is in the closed state. Furthermore, as shown in FIG. 13 , the restriction portion 152 extends from the locking portion 104 toward the inside of the first front panel 23 when the insertion portion 151 is inserted into the insertion portion 142 a.

[0083] The word "closed" is written on the front surface of the insertion portion 151 as a closed indicator 151a indicating that the sliding door is closed. When the insertion portion 151 of the locking member 105 is inserted into the insertion portion 142a of the locking unit 104, the closed indicator 151a of the insertion portion 151 is exposed through the indicator window. This makes it possible to indicate to the outside that the sliding door is closed.

[0084] When the inserting portion 151 is inserted into the receiving portion 142a with the sliding door in a closed state, the restricting portion 152 is positioned near the right side of the right end surface of the door panel 29, thereby restricting relative sliding displacement between the first front panel 23 and the door panel 29. Specifically, as shown in Fig. 13, when the inserting portion 151 is inserted into the receiving portion 142a, the restricting portion 152 extends toward the inside of the first front panel 23, and therefore the restricting portion 152 is positioned near the right side of the right end surface of the door panel 29. This prevents the door panel 29 from sliding in the opening direction, so the sliding door is locked in the closed state.

[0085] As described above, with the lock structure of this modified example, when the insertion portion 151 of the locking member 105 is inserted into the insertion receiving portion 142a of the locking portion 104 with the sliding door in a closed state, the closed indicator 151a of the insertion portion 151 is exposed to the outside of the first front panel 23 through the indicator window. At this time, the restricting portion 152 is positioned near the side end face of the door panel 29, thereby restricting the relative sliding displacement of the first front panel 23 and the door panel 29. Therefore, a user outside the panel booth 2 can easily recognize from a distance that the sliding door is locked.

[0086] Furthermore, in the lock structure according to this modification, when the insertion portion 151 of the locking member 105 is inserted into the insertion portion 142a of the locking portion 104, the closed indicator 151a of the insertion portion 151 is exposed through the indicator window. This makes it possible to display to the outside that the sliding door is in the closed state. Therefore, users outside the panel booth 2 can easily recognize from a distance that the sliding door is unlocked.

[0087] In the lock structure according to this modification, the tip of a string-like body 155 is connected to the lock member 105 via a connecting ring 154. As shown in FIG. 12 , the lock member 105 has a restricting piece 153 extending from one left end of the tip of the restricting portion 152. When the inserting portion 151 is inserted into the inserted portion 142a with the sliding door in a closed state, the restricting piece 153 is positioned near the inner surface of the door panel, thereby restricting the relative separation between the first front panel 23 and the door panel 29. This prevents the sliding door from being opened in a closed state by someone pushing the door panel 29 inward and inserting a hand to remove the lock member 105 from the locking portion 104.

[0088] Furthermore, in the lock structure according to this modification, a transparent plate 143 is provided in the display window of the locking section 104. This makes it impossible to operate the locking member 105 from outside the panel booth 2 when the insertion section 151 is inserted into the insertion section 142a. This makes it possible to prevent the sliding door in the closed state from being opened by an operation from outside.

[0089] In the lock structure according to this modification, the insertion portion 151 of the lock member 15 is curved so as to protrude forward to make it easier to insert and remove the insertion portion 151 into the insertion receiving portion 142a. Also, in the lock structure according to this modification, the restriction portion 152 of the lock member 105 is formed so as to bend in a direction out of the plane of the insertion portion 151. This makes it easier for the restriction portion 152 to extend from the locking portion 104 toward the inside of the first front panel 23 when the insertion portion 151 is inserted into the insertion receiving portion 142a. [Explanation of symbols]

[0090] 1 Booth body 2 Panel booth 2a Opening 3 Roof 3a Connecting member 4 Locking part 5 Lock member 6 Handle 7 Slide rail 8 Guide rail 9 Upper guide member 21 Right side panel 22 Left side panel 23 First front panel (outer panel) 23a Through hole 23b Insertion hole 24 Second front panel 27 Spacer 29 Door panel (inner panel) 29a Laura 32 Hinge 33 Connecting hinge 41 Outer member 41a Hole 41b Nut 41c Insertion part 41d support plate 42 inner member 42a Inserted part 42b Fixing hole 42c Open display 43 Transparent plate 51 Insertion part 51a Closed indication 52 Regulation part 53 Regulation piece 54 Connecting ring 55 String-like body 56 fixing portion 57 holding member 71 Mounting frame 72 Bracket 73 Fixed rail 74 Intermediate rail 75 Movable rail 76 Fixed member 104 Locking portion (modified) 105 Locking member (modified) 141 Outer member 141a Hole 141b Nut 141c Lower support plate 141d side support plate 142 inner member 142a Inserted part 142b Fixing hole 142c Open display 143 Transparent plate 144 Support member 144a Notch portion 144b Insertion Plate 151 Insertion part 151a Closed display 152 Regulation part 153 Regulation piece 154 Connecting ring 155 String-like body

Claims

1. A locking structure for a sliding door, which includes an outer panel having an inner surface and an outer surface, and an inner panel provided at a position overlapping the inner side of the outer panel, and in which an opening is opened and closed by relative sliding displacement between the outer panel and the inner panel, locks the sliding door in a closed state, The outer panel is provided with a locking portion near the end portion of the outer panel on the inner panel side when the sliding door is in a closed state, The locking portion is provided to penetrate the outer panel in the thickness direction, The locking section is formed with an insertion section into which a plate-shaped locking member can be inserted from the inside of the outer panel, and a display window on the outside of the outer panel through which the inside of the locking section can be exposed, The locking member is formed with an insertion portion that is inserted into the insertion portion, and a restriction portion that extends from the locking portion toward the inside of the outer panel when the insertion portion is inserted into the insertion portion, A locking structure for a sliding door, in which when the insertion portion is inserted into the insertion portion while the sliding door is in a closed state, the insertion portion is exposed to the outside of the outer panel through the display window, and the regulating portion is located near the side end face of the inner panel, thereby regulating the relative sliding displacement between the outer panel and the inner panel.

2. A closed indication indicating that the sliding door is in a closed state is printed on one surface of the insertion portion, 2. The locking structure for a sliding door according to claim 1, wherein the locking portion exposes the closed indicator through the indicator window when the insertion portion is inserted into the insertion portion, thereby indicating to the outside that the sliding door is in a closed state.

3. An open sign is printed on the inner surface of the locking part to indicate that the sliding door is in an open state, 3. The locking structure for a sliding door according to claim 2, wherein the locking portion displays the open state to the outside by exposing the open display through the display window when the insertion portion is not inserted into the insertion portion.

4. 4. The lock structure for a sliding door according to claim 3, wherein a transparent plate is provided in the display window.

5. 2. The lock structure for a sliding door according to claim 1, wherein the insertion portion of the lock member is inserted into the receiving portion with an angle of 0 to 45 degrees relative to the inner surface of the outer panel.

6. 2. The lock structure for a sliding door according to claim 1, wherein the lock member is formed such that the restricting portion is bent in an out-of-plane direction of the insertion portion.

7. The lock member has a restricting piece extending from one side end of the tip of the restricting portion, 7. A locking structure for a sliding door as described in claim 6, wherein when the insertion portion is inserted into the insertion portion while the sliding door is in a closed state, the regulating piece is positioned near the inner surface of the inner panel, thereby regulating the relative distance between the outer panel and the inner panel.

8. 2. The locking structure for a sliding door according to claim 1, wherein the inner panel is provided with a holding member that holds the locking member at a location located near the locking portion when the sliding door is in a closed state.

9. 9. The lock structure for a sliding door according to claim 8, wherein the lock member is connected to the inner panel near the retaining member by a string-like member.

10. 2. The lock structure for a sliding door according to claim 1, wherein the outer panel is configured as a fixed panel and the inner panel is configured as a slidably displaceable door panel.

11. A panel booth, comprising: a sliding door lock structure according to any one of claims 1 to 10; and a plurality of other panel bodies, forming a closed space.

12. The panel booth according to claim 11, wherein the plurality of other panel bodies and the locking structure of the sliding door are foldable.

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