Self-rotating recovery door

Abstract

To provide a self-swinging, recovery door that is simple and highly reliable without using an external power source. [Solution] A cam follower 4h is attached to the rotation shaft 4 of the door made of a metal round bar, and by combining it with a left-handed spiral guide pipe 1 or a right-handed spiral guide pipe 2 made of metal, smooth operation and durability are ensured. Stopper mechanisms 1a, 1c, 2a, and 2c are provided on the left-handed spiral guide portion 1b and the right-handed spiral guide portion 2b of the left and right spiral guide pipes. With this structure, the door smoothly returns to the closed position by its own weight, and the rotation range and opening and closing direction are limited. A round bar is used for the rotation jig of the door, and taps 4a to 4f for pinch adjustment are processed. A round pipe is used for the door frame 5, and the width of the door can be freely adjusted by using the fixing hole 5a, allowing for flexible response according to the installation location and purpose.

Description

[Technical field]

[0001] This invention relates to a door opening and closing structure, and in particular to a one-sided door equipped with a mechanism that uses gravity to easily and effectively return the door to the closed position, and a warning function to encourage safety checks when passing through. [Background technology]

[0002] Conventional single-leaf doors often use auxiliary mechanisms such as springs and motors to automatically close the door when it is opened. However, these mechanisms are complex and require a lot of time and effort to install and maintain. In addition, pedestrians may neglect to check for safety when passing through, which creates a risk of accidents. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-048730 A [Patent Document 2] JP 2016-113764 A [Patent Document 3] JP 2002-285533 A Summary of the Invention [Problem to be solved by the invention]

[0004] Door return mechanisms that use auxiliary devices such as springs and motors have a complex structure and are difficult to install and maintain.

[0005] In addition, conventional doors lack the ability to alert pedestrians to their surroundings, which can result in accidents.

[0006] Furthermore, conventional doors have a fixed width and cannot be adjusted to suit the usage environment or installation location, which means they are not very versatile.

[0007] The present invention was made in consideration of the above problems, and aims to provide a simple and reliable swing-back mechanism for a door that does not use an external power source. It also aims to realize a self-swinging swing-back door with a structure that naturally encourages pedestrians to check for safety on both sides when crossing the road, and with a high degree of versatility and applicability that can be used in a variety of environments by adjusting the width. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the present invention adopts the following means.

[0009] In this device, the door rotation is achieved by combining a shaft and a spiral guide pipe. Specifically, a cam follower is attached vertically to the shaft part of the door rotation axis, reducing friction with the guide part and enabling the door to rotate smoothly.

[0010] In addition, a spiral guide pipe is installed to use gravity to automatically return the door to the closed position. A stopper mechanism is installed in this spiral guide to limit the direction and range in which the door can open, ensuring one-way passage.

[0011] The door height is designed to be lower than line of sight, ensuring a wide view forward.

[0012] In addition, the doors are designed to open in the direction of pedestrians when they attempt to cross the road, and the doors are designed to open in the direction of the pedestrian, and the pedestrians are prompted to stop and then pull on either side of the door to naturally check for safety on both sides.

[0013] The door rotation jig is made of a round bar, and the door frame is made of a round pipe, and these are inserted and assembled. Furthermore, the round bar is tapped for pinch adjustment, and the door frame has holes for fixing. Fixing it with bolts where the pitch holes match up creates a pinch adjustment mechanism that allows the width to be adjusted. Effect of the Invention

[0014] This device realizes a simple yet effective door return mechanism. The door closes automatically without the need for an auxiliary mechanism, which reduces the time and effort required for installation and maintenance. In addition, the device has a function to prompt pedestrians to check for safety, which helps prevent accidents while passing through. [Brief description of the drawings]

[0015] [Figure 1] 3D drawings of each part and a 3D overall drawing of all parts assembled. (a) 3D drawings of all parts including the left and right spiral guide pipes, the rotating base plate, the door rotation axis, the door frame, and the door steel plate, (b) 3D overall drawing of all parts assembled in (a) above, [Diagram 2] The front view of each part and the overall front view of the assembled parts are shown in Fig. 1. (a) Front view of all parts including the left and right spiral guide pipes, the rotating base plate, the door rotating shaft, the door frame, and the door steel plate, (b) Overall front view of all parts assembled in (a), [Diagram 3] Detailed diagrams of the left and right spiral guide pipes of the door rotation base. (a) 3D diagram of the left and right spiral guide pipes. (b) Right side view of an enlarged spiral guide portion of the left spiral guide pipe. (c) Left side view of an enlarged spiral guide portion of the right spiral guide pipe. (d) Plan view of an enlarged spiral guide portion of the left spiral guide pipe. (e) Plan view of an enlarged spiral guide portion of the right spiral guide pipe. [Figure 4] 1 is a front view of the door rotation shaft and the door frame combined, (a) a front view of the door rotation shaft, (b) a front view of the door frame and the iron plate, and (c) a front view of the door rotation shaft and the door frame combined. [Diagram 5] FIG. 11 is a plan view showing the pivot direction of the door with an arrow. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] This invention relates to a door that swings from one side using its own weight, and is characterized by a structure designed to close the door naturally by its own weight. This door does not require external power such as a spring or motor, and can achieve a simple yet effective automatic closing function and control of the direction of passage.

[0017] In this device, the door's rotation recovery position is achieved by combining the door's rotation axis and the spiral guide pipe. A cam follower is attached vertically to the shaft of the door's rotation axis, which reduces friction with the spiral guide and allows the door to rotate smoothly.

[0018] In addition, this device uses a spiral guide pipe to allow the door to return to the closed position naturally under its own weight. This spiral guide pipe is designed with optimal dimensions to ensure a smooth return movement of the door, allowing for smooth opening and closing operations.

[0019] The spiral guide of this device is equipped with a stopper mechanism at the opening and closing end of the door, which limits the swing range and opening and closing direction of the door. This stopper mechanism serves to limit the door's opening in the direction of the crosswalk when there is one-way traffic. This prevents pedestrians from unintentionally passing directly through the door and encourages them to check for safety while passing through, which is expected to improve safety and reduce the risk of accidents.

[0020] In addition, the door of this device is designed to be low so as not to block the user's line of sight, and consideration is given to ensuring a wide field of vision ahead, making it easier for pedestrians to see their surroundings when passing through.

[0021] The door rotation jig uses a round bar, and the door frame is made of round pipes. These can be inserted and combined, making assembly easy. The round bar is also tapped for pinch adjustment, and the door frame has fixing holes. This structure realizes a pinch adjustment mechanism that allows the door width to be easily adjusted by adjusting the position of the pitch holes and fixing them with bolts. This allows for flexible response according to the installation location and usage conditions, providing a highly versatile door. EXAMPLES

[0022] This embodiment relates to a self-swinging, self-recovering door that does not require any external power source and has a structure in which the door automatically returns to the closed position by its own weight. This provides a simple and highly reliable automatic closing function without the use of auxiliary devices such as springs or motors.

[0023] The door's rotation recovery mechanism is realized by combining the shaft 4h attached to the door's rotation axis 4 with the left-handed spiral guide pipe 1 and the right-handed spiral guide pipe 2. Specifically, a cam follower 4h is attached vertically to the door's shaft 4, and this cam follower 4h reduces friction with the spiral guide pipe, enabling the door to rotate smoothly. This structure ensures smooth rotation and durability.

[0024] Furthermore, a left-handed spiral guide pipe 1 and a right-handed spiral guide pipe 2 are adopted so that the door will naturally return to the closed position by its own weight. These spiral guide pipes are designed with optimal dimensions and angles as shown in (b), (d), (c), and (e) in Figure 3 to realize a smooth return movement of the door, and effectively perform automatic closing of the door. In addition, stopper mechanisms 1a1c and 2a2c are provided in the left-handed spiral guide section 1b and the right-handed spiral guide section 2b, so that the door can only be opened and closed within a set range.

[0025] The stopper mechanism 1a1c and the stopper mechanism 2a2c are especially effective when traffic is one-way, and are designed so that the door only opens in the direction of the pedestrian. By restricting the door from opening in the direction of the crosswalk, pedestrians are prevented from unintentionally passing directly through the door, and are encouraged to check for safety on both sides. This reduces the risk of accidents while passing through, and improves safety.

[0026] The door of this embodiment is designed to be low so as not to block the user's line of sight, ensuring a wide field of vision ahead. This allows pedestrians to easily check their surroundings when passing through, further improving safety when passing through.

[0027] The door rotation jig 4 uses a round bar, and the door frame 5 is made of a round pipe. These can be inserted and combined, making for an easy assembly structure. The round bar is also machined with taps 4a4b4c4d4e4f for pinch adjustment, and the door frame 5 is provided with fixing holes 5a5b. By adjusting the position of these pitch holes and fixing them with bolts 7, a pinch adjustment mechanism is realized that allows the door width to be freely adjusted. This allows the door width to be flexibly changed depending on the installation location and usage conditions, providing a door with high versatility and applicability.

[0028] In this embodiment, by providing such a door structure, smooth opening and closing action, natural automatic return, ensuring safety for passage, and high versatility with adjustable width are achieved. [Industrial Applicability]

[0029] The door of this invention can be used in a wide range of fields, including public facilities, commercial facilities, office buildings, factories, warehouses, etc. It is particularly effective in narrow passages and places where safety is important, and the automatic return function by self-weight reduces the maintenance burden and is cost-effective compared to conventional doors that use springs and motors. In addition, the stopper mechanism that limits one-way traffic is expected to encourage safety checks and reduce the risk of accidents when passing through. Furthermore, the gate width can be adjusted, making it flexible to suit a variety of architectural designs, making it highly practical and commercially valuable in a wide range of industrial fields. [Explanation of symbols]

[0030] 1 Left-handed spiral guide pipe 1a Left Spiral Guide Open End Stopper 1b Left-handed spiral guide 1c Left Spiral Guide Closed End Stopper 2 Right-handed spiral guide pipe 2a Right Spiral Guide Open End Stopper 2b right-handed spiral guide 2c right-hand spiral guide closed end stopper 3 Rotating Base Plate 3a bolt fixing slot 3b Bolt fixing slot 4 Rotating shaft 4a Door fixing position 1 Upper tapped hole 4b Door fixing position 1 Lower tapped hole 4c Door fixing position 2 upper tapped hole 4d Door fixing position 2 bottom tap hole 4e Door fixing position 3 Upper tapped hole 4F Door Fixing Position 3 Lower Tap Hole Tapped hole for mounting 4g cam follower 4h cam follower 5 Door Frame 5a Upper hole for fixing the door 5b Lower hole for door fixing 6 Door Iron Plate 7 Volts

Claims

1. A one-way door equipped with a rotation recovery mechanism that utilizes gravity, characterized in that a cam follower is attached vertically to the shaft of the rotating shaft of the door, and the door rotates smoothly due to the cam follower, and further characterized in that a screw guide is provided on a rotating base that supports the door, and the screw guide utilizes the door's own weight to return the door to the closed position.

2. The door is designed to rotate under its own weight and return to its original position. The door is also characterized in that a spiral guide is provided on the pipe of the door rotation base, and the spiral guide is designed with optimal dimensions and angles when the door returns to its original position while rotating under its own weight. The door is also characterized in that a stopper mechanism is provided on the spiral guide, and the stopper mechanism can limit the rotation angle of the door in the opening and closing directions.

3. The self-swinging recovery door according to claim 1, wherein the door is provided with a structure that allows the door width to be adjusted as needed, and the width adjustment is performed by fixing the door at a predetermined pitch position with a bolt.

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