Opening and closing mechanism and cover structure

The opening/closing mechanism for car wash machine lids, featuring a rotating block member and elastic stopper, addresses the inconvenience of manual lid holding, enabling one-handed operation and reducing user fatigue.

JP2025126108APending Publication Date: 2025-08-28DAIFUKU CO LTD
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Patent Information

Application Number
JP2024145802
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-02-16
Filing Date
2024-08-27
Publication Date
2025-08-28

AI Technical Summary

Technical Problem

Conventional car wash machine operation panels require users to hold the lid open with one hand, making operation inconvenient and potentially leading to user fatigue or erroneous operation in unstable conditions.

Method used

An opening/closing mechanism with a block member and a stopper, where the block member rotates around an axis and is supported by an elastic stopper, allowing the lid to be maintained in an open state without manual holding, using elastic deformation to facilitate smooth operation.

Benefits of technology

The mechanism enhances user convenience by allowing one-handed operation of the display device, reducing fatigue and preventing erroneous operations, while maintaining the lid in an open position effectively.

✦ Generated by Eureka AI based on patent content.

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Abstract

To improve the convenience of operation of an opening and closing mechanism for opening and closing a lid body.SOLUTION: An opening and closing mechanism (10) is attached to a back surface (31) of a lid body (3), which opens and closes by rotating around a rotation axis (41), and includes a block member (4) having the rotation axis (41) of the lid body (3), and a stopper (5), which is a columnar member whose central axis (51) extends in a direction parallel to the rotation axis (41), supports the block member (4) in the first open / closed state of the lid body (3), and limits the rotation of the lid body (3), and at least one of the block member (4) and the stopper (5) is an elastic body, and during the opening / closing operation of rotating the lid body (3) from the first open / closed state to the second open / closed state, the elastic body elastically deforms, thereby allowing the rotation of the block member (4).SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present invention relates to an opening / closing mechanism and a cover structure. [Background technology]

[0002] For example, the car wash machine body described in Patent Document 1 is provided with an operation panel having a touch panel type liquid crystal display screen. Such an operation panel may be fitted with a hood to protect it from splashes of water or the like. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-172488 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional technology described above, when operating the operation panel, the hood (lid) must be lifted by hand, and if there is no mechanism to keep the hood open, it is necessary to hold the hood up with one hand while operating the panel, which is inconvenient.

[0005] An object of one aspect of the present invention is to improve the convenience of operation of an opening and closing mechanism that opens and closes a lid. [Means for solving the problem]

[0006] In order to solve the above problems, an opening / closing mechanism according to one embodiment of the present invention comprises: a block member attached to the back surface of a lid body that opens and closes by rotating around an axis extending in the planar direction, the block member having the rotation axis of the lid body; and a columnar member whose central axis extends in a direction parallel to the rotation axis, the block member supporting the block member in a first opening / closing state of the lid body and limiting the rotation of the lid body; at least one of the block member and the stopper being an elastic body; and during the opening / closing operation of rotating the lid body from the first opening / closing state to the second opening / closing state, the elastic body elastically deforms to allow the block member to rotate. [Effects of the Invention]

[0007] According to one aspect of the present invention, it is possible to improve the convenience of operating the opening and closing mechanism that opens and closes the lid. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a cover structure for a display device according to an embodiment of the present invention when a lid body is in an open state. [Figure 2] FIG. 4 is a perspective view showing the cover structure when the lid body is in a closed state. [Figure 3] FIG. 4 is a side view showing the cover structure when the lid body is in an open state. [Figure 4] 10 is a side view showing the cover structure when the lid body is rotating from an open state to a closed state during an opening / closing operation. FIG. [Figure 5] FIG. 4 is a side view showing the cover structure when the lid body is in a closed state. [Figure 6] FIG. 10 is a side view showing a modified example of the cover structure. [Figure 7] FIG. 10 is a side view showing another modified example of the cover structure. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Embodiment 1] An embodiment of the present invention will be described in detail below. However, the following description is intended to illustrate an example of a cover structure 100 and an opening / closing mechanism 10 according to the present invention, and the technical scope of the present invention is not limited to the following description and the contents of the drawings. In the following description, the direction from the display device 11 toward the upper surface 22 of the frame 2 is defined as the upward direction, and the direction perpendicular to the up-down direction on the installation surface 12 of the display device 11 on the operation panel 1 is defined as the left-right direction.

[0010] (Cover structure) FIG. 1 is a perspective view showing a cover structure 100 for a display device 11 according to an embodiment of the present invention when the lid body 3 is in an open state. FIG. 2 is a perspective view showing the cover structure 100 when the lid body 3 is in a closed state. As shown in FIGS. 1 and 2, the cover structure 100 includes a frame body 2, a lid body 3, and an opening / closing mechanism 10. The cover structure 100 of this embodiment is used, for example, to cover a display device 11 installed on an operation panel 1 of a car wash machine installed outdoors. The cover structures 100 / 100A may be attached to the car wash machine main body, or may be attached to a component of the car wash machine located away from the car wash machine main body.

[0011] (display device) The display device 11 displays, for example, operation information of the car wash machine. The display device 11 is provided in a position on the installation surface 12 of the car wash machine operation panel 1 where it can be seen by a user. The display device 11 is, for example, a touch panel, and can be operated by direct touch. The display device 11 is not limited to a touch panel, and may have a display unit that displays information and a switch provided separately.

[0012] (lid) The lid 3 protects the display device 11 from splashes of water from a car wash, rain, etc. The lid 3 is a transparent, plate-like member having a substantially rectangular shape, and in the closed state covers the front surface of the display device 11. The direction along the surface of the lid 3 is referred to as the surface direction.

[0013] The lid body 3 opens and closes by rotating around an axis (rotation axis 41, see FIG. 3). The rotation axis 41 is provided in a block member 4, which will be described later. When the lid body 3 opens and closes, the lid body 3 and the block member 4 rotate together around the rotation axis 41. The block member 4 and the rotation axis 41 will be described in detail later.

[0014] 1, magnetically attached portions 32 are provided along both left and right edges of the back surface 31 of the lid 3. When the lid 3 is in the closed state, the magnetically attached portions 32 are magnetically attached to magnetically attached receiving portions 23 of the frame 2, which will be described later, to maintain the closed state of the lid 3. The magnetically attached portions 32 may be, for example, rubber magnets.

[0015] (frame) The frame 2 is a frame capable of housing the display device 11, the lid 3, and the opening / closing mechanism 10. The frame 2 is a plate-shaped member that is approximately perpendicular to the installation surface 12 and is arranged so as to surround the display device 11 on the installation surface 12 on which the display device 11 of the operation panel 1 is installed.

[0016] The frame 2 has a side surface portion 21, a top surface portion 22, and a magnetic receiving portion 23. The top surface portion 22 is provided at the top of the display device 11, along the upper edge of the display device 11. The side surface portions 21 are provided so as to extend from both left and right ends of the top surface portion 22 along both left and right edges of the display device 11.

[0017] The magnetically attached receiving portion 23 is provided on the side surface portion 21. The magnetically attached receiving portion 23 is a member having a surface that is approximately parallel to the installation surface 12, to which the magnetically attached portion 32 is magnetically attached, and is provided so as to extend from the side surface portion 21 toward the inside of the frame body 2. The magnetically attached receiving portion 23 may be made of, for example, a magnetic material to which the magnetically attached portion 32 can be magnetically attached.

[0018] (Opening and closing mechanism) The opening / closing mechanism 10 will be described below with reference to Figures 1 to 5. Figure 3 is a side view showing the cover structure 100 when the lid body 3 is in the open state. Figure 4 is a side view showing the cover structure 100 when the lid body 3 is in the opening / closing operation of rotating from the open state to the closed state. Figure 5 is a side view showing the cover structure 100 when the lid body 3 is in the closed state. To facilitate the explanation of the opening / closing mechanism 10, in Figures 3 to 5, only the outlines of the frame body 2 and the display device 11 are shown by dashed lines.

[0019] The opening / closing mechanism 10 enables the lid 3 to be opened and closed. The opening / closing mechanism 10 can also maintain the lid 3 in an open state. This eliminates the need for the user to hold the lid 3 in the open state in order to keep it open. Operating a car wash machine previously required both hands to hold the lid 3 and operate the display device 11, but now allows the user to operate the display device 11 with one hand. This reduces fatigue during long periods of operation of the car wash machine. Furthermore, it is possible to avoid operating the car wash machine while in an unstable position, such as when holding an umbrella in the rain, thereby preventing erroneous operation of the car wash machine.

[0020] When an external force that rotates the lid 3 is applied to the opening / closing mechanism 10, the lid 3 can transition from the first open / closed state to the second open / closed state. More specifically, since the cover structure 100 includes the opening / closing mechanism 10, the lid 3 can transition from the first open / closed state to the second open / closed state when an external force is applied, for example, by a human hand. For example, the open state of the lid 3 shown in FIG. 3 may be the first open / closed state, and the closed state of the lid 3 shown in FIG. 5 may be the second open / closed state. The angle formed between the horizontal plane HS and the rear surface 31 of the lid 3 is defined as angle θ. The angle θ may be the angle in the open state in which the lid 3 is fully open. If the angle θ in the open state of the lid, which is the first open / closed state shown in FIG. 3, is angle θ1, the open state of the lid 3 in which the angle θ is different from angle θ1 may be referred to as the second open / closed state. The opening / closing mechanism 10 includes a block member 4 and a stopper 5.

[0021] (Block material) 3 to 5, the block members 4 are attached to the rear surface 31 of the cover 3. There are a pair of block members 4, and they are installed at both ends in the left-right direction at the top of the cover 3 when it is in the closed state (on the upper surface 22 side of the frame 2).

[0022] The block member 4 has a rotation axis 41 for the lid body 3. The rotation axis 41 for the lid body 3 is located at a position a predetermined distance away from the display device 11 and is approximately parallel to the upper side of the display device 11.

[0023] The block member 4 is a rectangular pillar having a polygonal shape when viewed from the direction of the rotation axis 41. The block member 4 is arranged so that one of the sides of the rectangular pillar, a side surface 42, is in contact with the rear surface 31 of the cover body 3, and the bottom surface of the rectangular pillar of the block member 4 is rotatably installed inside each of the side surface portions 21 of the frame body 2.

[0024] The block member 4 and the lid body 3 rotate integrally around the rotation axis 41, thereby opening and closing the lid body 3. When the lid body 3 shifts from the closed state to the open state, the lower part of the lid body 3 opens, so that even if the lid body 3 is opened in rainy weather, for example, the lid body 3 can prevent rain from hitting the display device 11.

[0025] The block member 4 is a non-elastic body and may be made of, for example, an acrylic resin.

[0026] (Stopper) As shown in FIGS. 3 to 5 , a pair of stoppers 5 are provided between each block member 4 and the installation surface 12. The stoppers 5 have a cylindrical shape with a central axis 51 extending in a direction substantially parallel to the rotation axis 41. The central axis 51 is located closer to the operation panel 1 than the rotation axis 41 and below the rotation axis 41 (on the side away from the upper surface portion 22), and the central axes 51 of the pair of stoppers 5 coincide with each other. In the first embodiment, an example is shown in which the stoppers 5 are cylindrical, but the stoppers 5 are not limited to a cylindrical shape with a circular cross-sectional shape. For example, the stoppers 5 may be columnar members whose cross-sectional shape includes a circular arc. In this case, it is preferable that the arc is located at a position where the stoppers contact the block member 4.

[0027] The stopper 5 is made of an elastic body, and the bottom surface of the cylinder of the stopper 5 is fixed to the inside of the side surface 21 of the frame 2. The block member 4 and the stopper 5 are installed on the inside of the side surface 21 of the frame 2 so that the block member 4, the stopper 5, and the cover 3 fit within the frame 2 when the cover 3 is in the closed state. The stopper 5 may be made of, for example, rubber (natural rubber, ethylene propylene diene rubber), etc.

[0028] As shown in FIG. 3 , the stopper 5 supports the block member 4 when the lid body 3 is in the open state (first open / close state) and limits the rotation of the lid body 3. Specifically, when the lid body 3 is in the open state, the stopper 5 supports the block member 4 while contacting one of the side surfaces 43 of the rectangular pillar of the block member 4. This allows the opening / closing mechanism 10 to maintain the open state of the lid body 3 in the first open / close state with a simple structure. Furthermore, the angle θ of the open state of the lid body 3 can be adjusted by adjusting the interior angle of the polygonal shape of the rectangular pillar of the block member 4. Note that when the lid body 3 is in the open state, the elastic body of the stopper 5 may be slightly elastically deformed due to the weight of the lid body 3 and the block member 4.

[0029] In this embodiment, the angle θ may be, for example, 25° or more and 30° or less, and may be, for example, 28°. By using this angle, even tall people can easily view the display device 11. Furthermore, even if water droplets fall on the surface of the lid 3 when the lid 3 is in the open state, the water droplets flow onto the upper surface portion 22 of the frame 2 and can be received by the upper surface portion 22. In this case, the upper surface portion 22 may be inclined so that the positions of the water droplets are lowered toward both ends of the upper surface portion 22 in the left-right direction.

[0030] As shown in FIG. 4, in the opening / closing mechanism 10, during the opening / closing operation in which the lid body 3 is rotated from the open state (first opening / closing state) to the closed state (second opening / closing state), the elastic body serving as the stopper 5 elastically deforms to allow the block member 4 to rotate.

[0031] The distance between the contact point P1 between the block member 4 and the stopper 5 and the rotation axis 41 is defined as a first distance L1. The distance between the contact point P1 and the central axis 51 is defined as a second distance L2, and the radius of the stopper 5 is defined as L3. In the opening / closing mechanism 10, the stopper 5 elastically deforms during the opening / closing operation when the lid body 3 rotates from the open state (first opening / closing state) to the closed state (second opening / closing state), so the second distance L2 becomes smaller than the radius L3.

[0032] More specifically, in the first open / closed state and the second open / closed state, the sum of the first distance L1 and the second distance L2 is approximately equal to the sum of the first distance L1 and the radius L3 (second distance L2 ≈ radius L3). During the opening / closing operation of rotating from the first open / closed state to the second open / closed state, the sum of the first distance L1 and the second distance L2 is smaller than the sum of the first distance L1 and the radius L3 (second distance L2 < radius L3). In other words, the block member 4 and the stopper 5 should be disposed in positions that satisfy these conditions.

[0033] During the opening and closing operation, the second distance L2 may be 0.6 to 0.8 times, preferably 0.65 to 0.75 times, and more preferably approximately 0.7 times, the radius L3. If the second distance L2 relative to the radius L3 is too large, it becomes difficult to maintain the radius L3. If the second distance L2 is too small, the opening and closing operation becomes difficult and the stopper 5 wears quickly. By keeping the second distance L2 relative to the radius L3 within the above range, the opening and closing mechanism 10 can be suitably realized.

[0034] In the second open / close state of the lid body 3, the stopper 5 may support the block member 4 by contacting another one of the side surfaces of the rectangular pillar of the block member 4. The second open / close state may be a state in which, after an opening / closing operation in which the stopper 5 is elastically deformed by being pressed by a corner of the block member 4 from the first open / close state, the stopper 5 is in contact with a side surface other than the side surface that was in contact with the stopper in the first open / close state. The corner portion of the block member 4 is a portion located between a certain side surface of the block member 4 and an adjacent side surface, and is a vertex of a polygonal shape on the stepped surface of the block member 4.

[0035] For example, the second open / close state may be a state in which a side surface of the block member 4 adjacent to the side surface that was in contact with the stopper 5 in the first open / close state is in contact with the stopper 5. In other words, the side surface that was in contact with the stopper 5 in the first open / close state and the side surface that is in contact with the stopper 5 in the second open / close state may be adjacent side surfaces. Specifically, referring to FIG. 3 , for example, in the opening / closing mechanism 10, the first open / close state may be a state in which the side surface 43 of the block member 4 is in contact with the stopper 5, and the second open / close state may be a state in which the side surface 45 is in contact with the stopper 5. The second open / close state may be a state in which any side surface of the block member 4 is in contact with the stopper 5, between the open state and the closed state of the lid body 3. Alternatively, the second open / close state may be a closed state of the lid body 3 as shown in FIG. 5.

[0036] This makes it possible to maintain the open state of the lid 3 at a plurality of different angles θ with a simple structure. Note that when the lid 3 is in the closed state as shown in Fig. 5, the lid 3 can be maintained in the closed state by its own weight and the magnetic attachment between the magnetic attachment portion 32 and the magnetic attachment receiving portion 23, so the block member 4 and the stopper 5 do not need to be in contact with each other.

[0037] The length W1 (see FIG. 1) of the stopper 5 in the direction of the central axis 51 is shorter than the length W2 (see FIG. 1) of the block member 4 in the direction of the rotation axis 41. This results in a configuration in which the stopper 5 is hidden behind the block member 4 when viewed from the front of the lid body 3, making it possible to realize the opening and closing mechanism 10 without spoiling the aesthetic appearance.

[0038] The stopper 5 may also be detachable. For example, the stopper 5 may be fixed to the side surface 21 of the frame body 2 with a screw. More specifically, the stopper 5 may be fixed to the side surface 21 of the frame body 2 by passing a screw through a through-hole provided in the center of the stopper 5 and a through-hole provided in the side surface 21 of the frame body 2 and fastening it with a nut. Elastic bodies are prone to deterioration at the contact portion that undergoes elastic deformation. If the cylindrical stopper 5 is detachable and elastic, if the contact portion with the non-elastic block member 4 deteriorates, the stopper 5 can be removed, rotated, and then reattached, allowing the undeteriorated portion of the stopper 5 to be used at the contact portion. This can extend the product life of the opening / closing mechanism 10 and reduce the frequency of replacement with other parts.

[0039] The through-hole in the side surface portion 21 of the frame body 2 may be tapped. In other words, the side surface portion 21 of the frame body 2 may have a tapped hole. By providing a tap in the through-hole in the frame body 2, the protrusion of the screw that secures the stopper 5 to the frame body 2 can be easily adjusted, making it easy to adjust the tightening margin of the stopper 5. This makes it possible to reduce variations in the degree of tightening of the stopper 5 at the discretion of the worker.

[0040] Because the stopper 5 is an elastic body, the way it collapses (deforms) in response to the force it receives from the block member 4 during opening and closing operations may change depending on how tight it is. By being able to adjust the degree of tightening so that it collapses in an appropriate way in response to the force it receives from the block member 4, the lid body 3 can be held stably.

[0041] Furthermore, the tightness of the stopper 5 may be adjusted so that the stopper 5 is attached to the side surface portion 21 of the frame 2 rotatably in response to the movement of the lid 3. In other words, the stopper 5 may rotate about the central axis 51 in response to the movement of the lid 3. If the stopper 5 is fixed to the frame 2 so that it cannot rotate, the elastic force of the stopper 5 may act inappropriately, which may result in the lid 3 not being held in the desired position. By fixing the stopper 5 to the frame 2 so that it is rotatable, the possibility of unnecessary elastic force acting is reduced, and the lid 3 can be stably held in the desired position.

[0042] When the stopper 5 is rotatably fixed to the frame 2, the stopper 5 may rotate in a clockwise direction in Fig. 4 during the opening and closing operation of rotating the lid 3 from the open state to the closed state. On the other hand, during the opening and closing operation of rotating the lid 3 from the closed state to the open state, the stopper 5 may rotate in a counterclockwise direction in Fig. 4. In other words, the stopper 5 may rotate in a different direction during the opening and closing operation of the lid 3 from the open state to the closed state and during the opening and closing operation from the closed state to the open state.

[0043] Furthermore, the rotation angle of the stopper 5 during the opening / closing operation from the open state to the closed state may be different from the rotation angle during the opening / closing operation from the closed state to the open state. By making these rotation angles different, the contact portion of the stopper 5 with the block member 4 moves, thereby reducing local wear of the stopper 5.

[0044] (effect) In this way, in the opening / closing mechanism 10, the elastic body serving as the stopper 5 elastically deforms during the opening or closing operation of the lid 3, allowing the rotation of the block member 4, and furthermore, the stopper 5 supports the block member 4 when the lid 3 is in the open state, limiting the rotation of the lid 3. This makes it possible to maintain the open state of the lid 3 using inexpensive members with a simple structure. As a result, a cover structure 100 can be realized at low cost, which ensures the convenience of operating the operation panel 1, reduces user fatigue during operation, and ensures safety.

[0045] In this embodiment, the block member 4 is described as being non-elastic and the stopper 5 is described as being elastic, but in the opening and closing mechanism 10, it is sufficient that at least one of the block member 4 and the stopper 5 is elastic. For example, in the opening and closing mechanism 10, the block member 4 may be elastic and the stopper 5 may be non-elastic. In that case, in the opening and closing mechanism 10, during the opening and closing operation of the lid 3, the block member 4, which is an elastic body, is elastically deformed, thereby allowing the block member 4 to rotate.

[0046] [Modification] Fig. 6 is a side view showing cover structure 100A, which is a modified example of cover structure 100. Fig. 7 is a side view showing cover structure 100B, which is another modified example of cover structure 100. As shown in Figs. 3 and 6, when the height distance h between central axis 51 and rotation shaft 41 is the same, the angle θ in the open state of lid body 3 can be changed by changing the depth distance D between central axis 51 and rotation shaft 41. Note that the length of distance D is distance D2 > distance D1, and the magnitude of angle θ is angle θ1 > angle θ2 > 0.

[0047] Here, distance D1 is distance D in embodiment 1 (FIG. 3), and distance D2 is distance D in the modified example in FIG. 6. Also, angle θ1 is angle θ in FIG. 3, and angle θ2 is angle θ in FIG.

[0048] Increasing the distance D from distance D1 (see FIG. 3) to distance D2 (see FIG. 6) reduces the angle θ. The angle θ when the lid 3 is in the open state can also be adjusted by changing the distance h. In other words, the angle θ can be adjusted arbitrarily by changing the distance D and the distance h.

[0049] The smaller the angle θ, the more light striking the display device 11 can be blocked, thereby preventing reflection of light on the display device 11. This makes it possible to make the display device 11 more visible even when sunlight is reflected off the display device 11 and makes it difficult to view.

[0050] In the above-described embodiment, an example was described in which a display device is housed in the cover structure 100 / 100A, but the elements housed in the cover structure 100 / 100A are not limited to display devices. For example, the cover structure 100 / 100A may protect elements that are sensitive to the intrusion or attachment of wind, rain, or foreign objects, such as a coin / bill insertion slot, a change tray, a card slot, a QR code reader, an electronic money payment terminal, or an operation panel.

[0051] 〔summary〕 The opening / closing mechanism (10) according to aspect 1 of the present invention is attached to the back surface (31) of a lid body (3) that opens and closes by rotating around an axis (rotation axis 41) extending in the planar direction, and comprises a block member (4) having the rotation axis (41) of the lid body (3), and a stopper (5) that is a columnar member whose central axis extends in a direction parallel to the rotation axis (41), supports the block member (4) in a first opening / closing state of the lid body (3), and limits the rotation of the lid body (3), and at least one of the block member (4) and the stopper (5) is an elastic body, and during the opening / closing operation of rotating the lid body (3) from the first opening / closing state to the second opening / closing state, the elastic body elastically deforms, thereby allowing the rotation of the block member (4).

[0052] According to the above configuration, the lid can be kept open without relying on human hands, and an opening / closing mechanism that is easy to manufacture and assemble and has excellent cost performance can be realized.

[0053] In the opening / closing mechanism (10) according to aspect 2 of the present invention, in the above aspect 1, the first opening / closing state is an open state of the cover body (3), the block member (4) is a prism having a polygonal shape when viewed from the axial direction of the rotation shaft, and in the first opening / closing state, the stopper may support the block member (4) with the side and / or corner of the prism in contact with the stopper (5).

[0054] According to the above configuration, the lid can be kept in an open state with a simple structure. Also, by adjusting the interior angles of the polygonal shape, the angle at which the lid is in an open state can be adjusted.

[0055] In the opening / closing mechanism (10) according to aspect 3 of the present invention, in the above-mentioned aspect 2, in the second opening / closing state, the stopper may support the block member (4) with the other side surface and / or other corner portion of the rectangular pillar in contact with the stopper (5).

[0056] According to the above configuration, it is possible to maintain the open state at a plurality of different angles with a simple structure.

[0057] In the opening / closing mechanism (10) according to aspect 4 of the present invention, in any one of aspects 1 to 3, the length of the stopper in the axial direction of the central shaft may be shorter than the length of the block member in the axial direction of the rotating shaft.

[0058] According to the above configuration, the stopper is hidden behind the block member when viewed from the surface direction of the lid body, so that the opening and closing mechanism can be realized without spoiling the aesthetic appearance.

[0059] In the opening / closing mechanism (10) according to aspect 5 of the present invention, in any of aspects 1 to 4 above, the stopper (5) may be a detachable cylindrical elastic body, and the block member (4) may be a non-elastic body.

[0060] According to the above configuration, the elastic body is susceptible to deterioration at the contact portion that undergoes elastic deformation. Because the cylindrical stopper is a detachable elastic body, if the contact portion with the block member deteriorates, the stopper can be removed, rotated, and then reattached to use the undeteriorated portion for the contact portion. This extends the product life and reduces the frequency of replacement with other parts.

[0061] In the opening and closing mechanism (10) according to a sixth aspect of the present invention, in the fifth aspect, the stopper (5) may rotate around a central axis of the stopper (5) in association with the opening and closing operation.

[0062] According to the above configuration, it is possible to reduce the possibility that unnecessary elastic force will be applied to the lid body 3, and to stably hold the lid body 3 at a desired position.

[0063] The cover structure (100) according to the seventh aspect of the present invention may be attached to a car wash machine and may include a lid body (3) and the opening / closing mechanism (10) according to any one of the first to sixth aspects.

[0064] The above-described configuration allows the lid to be kept open without relying on human labor, is easy to manufacture and assemble, and provides a cost-effective cover structure that protects the display device, coin / bill slot, change tray, card slot, QR code reader, electronic money payment terminal, operation panel, and other components of the car wash machine from wind, rain, foreign objects, and the like.

[0065] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in the embodiments are also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in the embodiments. [Explanation of symbols]

[0066] 2 frame 3 Lid 4 Block members 5 Stopper 10 Opening and closing mechanism 11 Display device 31 Back side 41 Rotation axis 42, 43, 44, 45 Sides of prisms 51 Center axis 100, 100A, 100B cover structure

Claims

1. a block member attached to the rear surface of a lid that opens and closes by rotating around an axis extending in the planar direction, the block member having a rotation axis of the lid; a stopper that is a columnar member having a central axis extending in a direction parallel to the rotation axis, and that supports the block member when the lid body is in a first open / closed state and limits the rotation of the lid body; At least one of the block member and the stopper is an elastic body, An opening and closing mechanism in which, during an opening and closing operation in which the lid body is rotated from the first open / close state to the second open / close state, the elastic body elastically deforms to allow rotation of the block member.

2. the first open / close state is an open state of the lid body, the block member is a prism having a polygonal shape when viewed in the axial direction of the rotation shaft, The opening and closing mechanism according to claim 1 , wherein in the first opening and closing state, the stopper supports the block member with the side surface and / or corner portion of the rectangular pillar in contact with the stopper.

3. 2. The opening and closing mechanism according to claim 1, wherein the stopper is a detachable cylindrical elastic body, and the block member is a non-elastic body.

4. Attached to a car wash, A cover structure comprising: a lid body; and the opening / closing mechanism according to any one of claims 1 to 3.

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