Bicycle parking gate

Abstract

To provide a gate for a bicycle parking lot that can reliably prevent unauthorized entry and exit, and allows even powerless users to easily pass through.SOLUTION: In a bicycle parking gate 1a having two revolving gates 2a and 3a with divider doors 8a and 9a and divider doors 10a and 11a always rotating vertically, and including a cam mechanism to assist the rotation of a revolving gate 1a by using a return force of a spring that is energized corresponding to the rotation of the gate 1a, an initial stage of the rotation in which the spring is not sufficiently energized is detected by a sensor 35a and an electric motor 36a is driven to assist the rotation using the power of an electric motor 36a before the rotation assist by the cam mechanism is activated.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a gate for a bicycle parking lot, and more particularly to a gate provided at the entrance and exit of a bicycle parking lot for bicycles, motorcycles, etc. [Background technology]

[0002] In recent years, the number of paid bicycle parking lots for parking two-wheeled vehicles such as bicycles and motorcycles has been increasing. These types of bicycle parking lots are equipped with bicycle parking gates at the entrance and exit due to the need to control the entry (and / or exit) of motorcycles.

[0003] The applicant has proposed the gate described in Patent Document 1 as such a gate for a bicycle parking lot. The gate for a bicycle parking lot in Patent Document 1 is composed of two revolving gates having two partition doors symmetrical about a vertical axis of rotation. The two revolving gates are arranged parallel to the passageway for users accompanied by motorcycles and are mechanically linked, so that the partition doors of the two revolving gates always rotate while maintaining an angle of 90 degrees.

[0004] When a user brings in (or takes out) a motorcycle at this bicycle parking gate, the user advances while using the front wheel of the motorcycle to push the partition doors of two revolving gates located at the front (nearby) and rear (far) sections of the passageway in sequence. At this time, the two revolving gates are mechanically linked, so when the motorcycle pushes the rear partition door to move forward, the partition door of the front revolving gate also rotates in conjunction with the rotation of the rear partition door. Therefore, even if there is another motorcycle following a motorcycle that is moving forward, the forward movement of the following motorcycle is prevented by the front partition door, so only the one moving forward can pass through the bicycle parking gate, preventing the following motorcycles from entering (or leaving) the bicycle parking lot illegally. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2003-232139 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, the bicycle parking gate described in Patent Document 1 has the following problems. That is, when passing through the bicycle parking gate described in Patent Document 1, the user must use the front wheel of the motorcycle to push the partition door of the revolving gate while moving forward, but because the two revolving gates are mechanically linked, a considerable amount of force is required to push the partition door and move forward. Therefore, it is not easy for users with little strength, such as children or the elderly, to pass through the bicycle parking gate.

[0007] In particular, the bicycle parking gate described in Patent Document 1 is equipped with a mechanism that uses a cam and a spring so that the two rotating gates return to their initial angle (for example, the partition door of the front rotating gate is oriented perpendicular to the aisle) when the user has finished passing through.The user pushes the partition door forward using the force to extend the spring, and when the partition door reaches a specified angle, the return force of the extended spring acts on the cam to return the two rotating gates to their initial angle.Since the force required to extend this spring is also required when pushing the partition door, this places a heavy burden on users with little strength.

[0008] The present invention has been made in consideration of such problems, and its object is to provide a gate for a bicycle parking lot which can reliably prevent unauthorized entry and exit and which even weak users can easily pass through. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, the bicycle parking gate of the present invention comprises two rotating gates having two partition doors fixed symmetrically about a vertical rotation axis, a gate rotation means for arranging the two rotating gates adjacent to each other parallel to the passage for users accompanied by two-wheeled vehicles and mechanically connecting the two rotating gates so that the partition doors always remain perpendicular to each other while rotating, and a reverse prevention means for preventing each of the rotating gates from rotating in the opposite direction, wherein the gate rotation means has at least a cam mechanism and a spring that is biased in accordance with the rotation of the rotating gate, and when either of the two rotating gates is rotated a first predetermined angle by an external action, the cam mechanism is mechanically operated by the return force of the biased spring, and the rotating gate is further rotated a second predetermined angle, the bicycle parking gate is characterized by comprising a rotation detection means for detecting the initial stage of rotation of the rotating gate, a rotation drive means that drives in response to the detection of rotation by the rotation detection means, a drive link means that rotates the cam of the cam mechanism in cooperation with the rotation drive means, and a rotation stop means that stops the rotation of the rotation drive means.

[0010] In this bicycle parking gate, the partition doors of the two revolving gates, which are positioned parallel to the users' aisle, are mechanically linked so that they always remain perpendicular to each other while they rotate. Therefore, when a user with a motorcycle pushes the partition doors of the revolving gate and moves forward, at least once in the process, the front, rear, and one side of the motorcycle will be surrounded by the partition doors (see Figure 4(b)). Therefore, even if there is a motorcycle following behind, the entry of the motorcycle will be blocked by the partition doors, and illegal entry such as two motorcycles entering at the same time will be prevented.

[0011] In addition, when either of the two rotating gates is rotated a first predetermined angle due to an external action, the return force of the spring that is biased in response to the rotation of the rotating gate operates a cam mechanism, which automatically rotates the rotating gate further to a second predetermined angle.Therefore, a user traveling on a two-wheeler can move the two-wheeler forward until it reaches the first predetermined angle (for example, 90 degrees from the initial position), and then use the return force of the spring to automatically rotate the partition door to the second predetermined angle (for example, 180 degrees from the initial position), reducing the effort required to push the partition door open.

[0012] Furthermore, by detecting the initial stage of rotation of the rotating gate, driving the rotary drive means, and rotating the cam of the cam mechanism in cooperation with the rotary drive means, it is possible to assist the rotation of the rotating gate using the power of the rotary drive means from the initial stage of rotation of the rotating gate. Therefore, the effort of the user can be reduced even before the rotation assistance by the cam mechanism starts.

[0013] In addition, as a preferred embodiment of the bicycle parking gate of the present invention, the driving link means comprises a link arm that rotates integrally with the cam of the cam mechanism, and a cam follower that rotates the link arm, and the cam follower is arranged to rotate around the rotation axis of the rotation driving means, and is driven by the rotation driving means to rotate around the rotation axis, thereby coming into contact with the link arm and rotating the link arm.

[0014] In this bicycle parking gate, the rotating cam follower comes into contact with the link arm to rotate the link arm, so that by appropriately setting the rotation radius of the cam follower, the range within which the assistance of the rotation drive means acts (the rotation angle of the link arm) can be adjusted.

[0015] In addition, as another preferred embodiment of the bicycle parking gate of the present invention, the cam followers are arranged on both ends of a rotating plate provided on the rotating shaft of the rotational drive means, and the rotation stopping means detects that the cam followers have rotated 180 degrees around the rotating shaft and stops the rotational drive means.

[0016] In this bicycle parking gate, the cam followers are provided on both ends of a rotating plate that is attached to the rotating shaft of the rotary drive means, so that the turning radius of the cam followers can be easily adjusted by changing the dimensions of the rotating plate.

[0017] In addition, as another preferred embodiment of the bicycle parking gate of the present invention, the gate rotation means further has a gate locking means having a function of automatically locking the vertical rotation axis when the two rotating gates have rotated to a third specified angle.

[0018] In this bicycle parking lot gate, when the two rotating gates rotate to a third specified angle (e.g., 180 degrees from the initial position), the vertical rotation axis is automatically locked, thereby effectively preventing unauthorized use of the bicycle parking lot, for example, in a paid bicycle parking lot. Effect of the Invention

[0019] According to the present invention, the partition doors of two turnstiles arranged parallel to the user passage are mechanically linked so as to always remain perpendicular to each other, effectively preventing unauthorized entry such as the simultaneous entry of two gates. Also, the initial stage of the turnstile rotation is detected and the rotation of the turnstile is assisted by power, so even users with little strength can easily pass through the turnstile. [Brief description of the drawings]

[0020] [Figure 1] 1 is a plan view showing an example of an entrance / exit of a bicycle parking lot using a bicycle parking lot gate according to the present invention. [Diagram 2] 1 is a front view of an entrance / exit to a bicycle parking lot using the bicycle parking lot gate. [Diagram 3] The figures are plan views showing an example of the procedure for a motorcycle to enter the gate of the bicycle parking lot. Fig. 3(a) shows the motorcycle advanced to the position of the partition door of the preceding revolving gate, and Fig. 3(b) shows the state in which the partition door of the preceding revolving gate has rotated 45 degrees. [Figure 4]FIG. 4(a) is a plan view showing the continuation of the motorcycle entry procedure shown in FIG. 3, in which FIG. 4(a) shows the motorcycle moving forward to the position of the partition door of the rear revolving gate, FIG. 4(b) shows the partition door of the rear revolving gate having rotated 45 degrees, and FIG. 4(c) shows the rear revolving gate having rotated 90 degrees, allowing the motorcycle to enter. [Diagram 5] 5(a) is a plan view of the gate lock mechanism and rotation assist mechanism of the bicycle parking gate of the present invention, where FIG. 5(a) shows the state of each mechanism when the partition door is in the initial position, FIG. 5(b) shows the state of each mechanism when the partition door is rotated 30 degrees, and FIG. 5(c) shows the state of each mechanism when the partition door is rotated 90 degrees. [Figure 6] 2 is a plan view showing the schematic configuration of the power assist mechanism of the bicycle parking gate. FIG. [Figure 7] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In addition, the same reference numerals denote the same components or elements throughout the drawings.

[0022] 1 and 2 show the entrance and exit of a bicycle parking lot using a bicycle parking lot gate according to the present invention. Here, the bicycle parking lot is made up of an area partitioned by walls, fences, etc. The illustrated example shows the entrance and exit of a bicycle parking lot partitioned by a fence F, at which a partition member (in the illustrated example, a pair of partition bars P, P perpendicular to the fence F) is disposed to form a passage for two-wheeled vehicles, and within the entrance and exit, a bicycle parking lot gate 1a for entry and a bicycle parking lot gate 1b for exit are provided in parallel.

[0023] In the illustrated example, in order to arrange the bicycle parking gates 1a and 1b side by side at the narrow entrance, some layout changes have been made to the bicycle parking gates 1a and 1b, such as the arrangement of the one-way rotating shaft 14 and the floating shaft 15, but there is no difference in function between the two and the basic configuration of the bicycle parking gates 1a and 1b is the same. Therefore, the same reference numerals are used for parts that have the same configuration and their explanations are omitted. In this case, the reference numerals for the components of the entrance bicycle parking gate 1a are suffixed with "a," and the reference numerals for the components of the exit bicycle parking gate 1b are suffixed with "b."

[0024] The bicycle parking gate 1a will now be described. The bicycle parking gate 1a mainly comprises two revolving gates 2a and 3a, a gate rotation means, and a reverse rotation prevention means.

[0025] The revolving gates 2a and 3a are constructed by arranging two gates adjacent to each other in parallel with the passageway for users accompanied by motorcycles. Of these, the revolving gate 2a is arranged at the front stage (upstream side) of the passageway. The revolving gate 2a has a vertical rotation shaft 6a and two partition doors 8a and 9a arranged symmetrically about the vertical rotation shaft 6a. On the other hand, the revolving gate 3a is arranged at the rear stage (downstream side) of the passageway. The revolving gate 3a has a vertical rotation shaft 7a and two partition doors 10a and 11a arranged symmetrically about the vertical rotation shaft 7a.

[0026] As shown in Fig. 2, the vertical rotating shafts 6a and 7a each have a bearing box 12a on a shaft disposed in the vertical direction, and are rotatably supported by this bearing box 12a. In addition, a sprocket 13a for driving a chain, which will be described later, is provided near the floor surface of the vertical rotating shafts 6a and 7a (the portion protruding downward from the bearing box 12a).

[0027] The rotary gates 2a and 3a are also provided with a one-way rotating shaft 14a and a floating shaft 15a that are parallel to the vertical rotating shafts 6a and 7a. The one-way rotating shaft 14a and the floating shaft 15a are both provided with a sprocket 13a for driving a chain near the floor surface, similar to the vertical rotating shafts 6a and 7a. A chain 16a is wound around these shafts and the sprockets 13a of the vertical rotating shafts 6a and 7a, thereby connecting the vertical rotating shafts 6a and 7a, the one-way rotating shaft 14a, and the floating shaft 15a by the chain 16a.

[0028] The one-way rotating shaft 14a constitutes a reverse rotation prevention means for preventing the rotating gates 2a, 3a connected by the chain 16a from rotating in the reverse direction, and is equipped with, for example, a ratchet mechanism (not shown) for preventing the one-way rotating shaft 14a from rotating in the reverse direction. The same sprockets (sprockets with the same diameter and number of teeth) are used for the sprockets 13a of the vertical rotating shafts 6a, 7a and the one-way rotating shaft 14a, except for the floating shaft 15a, so that the vertical rotating shafts 6a, 7a connected by the chain 16a rotate synchronously. This also causes the partition doors 8a, 9a and the partition doors 10a, 11a to rotate synchronously.

[0029] In relation to the synchronous rotation of the partition doors 8a, 9a and 10a, 11a, in the present invention, when the chain 16a is hung around the vertical rotating shafts 6a, 7a, the partition doors 8a, 9a of the vertical rotating shaft 6a and the partition doors 10a, 11a of the vertical rotating shaft 7a are connected in a state where their orientations are shifted by 90 degrees (so that the angle at which they intersect is 90 degrees). As a result, when the vertical rotating shafts 6a, 7a rotate synchronously, the partition doors 8a, 9a and the partition doors 10a, 11a rotate while always maintaining an angle of 90 degrees (vertical) relative to each other during the rotation. The relative positions of the partition doors are maintained throughout. That is, in this embodiment, the vertical rotating shafts 6a, 7a, the sprocket 13a provided on the vertical rotating shafts 6a, 7a, and the chain 16a connecting these form a gate rotation means that connects the partition doors 8a, 9a and the partition doors 10a, 11a so that they are always maintained at 90 degrees (perpendicular) to each other during rotation.

[0030] In relation to the rotation of the partition doors 8a, 9a, 10a, 11a, the partition doors 8b, 9b, 10b, 11b of the exit bicycle parking gate 1b rotate independently of the partition doors 8a, 9a, 10a, 11a of the entrance bicycle parking gate 1a, so that they do not interfere with each other (do not hinder each other's rotation) even if they rotate at the same time. In this embodiment, as a measure to prevent this interference, the partition doors 8, 9, 10, 11 of the bicycle parking gates 1a and 1b are each configured as a horizontal rod-shaped member, and the height positions of the partition doors 8, 9, 10, 11 are changed between the bicycle parking gate 1a and the bicycle parking gate 1b, thereby avoiding contact and interference between the partition doors 8, 9, 10, 11 (see FIG. 2). Other methods for preventing this interference may be used, such as arranging the bicycle parking gates 1a, 1b at a distance from each other so that the turning radii of the partition doors 8, 9, 10, 11 do not overlap.

[0031] In addition, reference numerals 17a and 17b in the drawing are lock control devices that instruct a normally closed gate lock mechanism (described later) to unlock, and are composed of, for example, a fee adjustment machine that adjusts the bicycle parking lot usage fee, a card reader, etc. The gate lock mechanism and lock control device 17 are installed when a bicycle parking lot requires a fee, and are disposed at least in one of the entrance or exit bicycle parking lot gates 1a and 1b.

[0032] Next, the function of the partition doors 8a, 9a, 10a, and 11a in the bicycle parking gate 1a configured as above, that is, the mechanism by which the partition doors 8a, 9a, 10a, and 11a prevent the entry of following vehicles, will be explained with reference to Figures 3 and 4. Reference symbol B in the figure indicates a bicycle operated by a user of the bicycle parking lot.

[0033] (1) When entering a bicycle parking lot, a user advances bicycle B to the position of the partition door 8a of the revolving gate 2a located at the front of the passageway, and pushes the partition door 8a using the front wheel of bicycle B (see FIG. 3(a)). Since the vertical rotating shaft 6a on which the partition door 8a is mounted is rotatably supported by a bearing box 12a, when the partition door 8a is pushed by bicycle B, the partition door 8a rotates around the vertical rotating shaft 6a, and the vertical rotating shaft 6a rotates. Note that in this embodiment, the rotation of the vertical rotating shaft 6a is configured to be assisted by power, and the details of this power assist function will be described later.

[0034] (2) When the vertical rotating shaft 6a rotates, the vertical rotating shaft 7a of the rear rotating gate 3a, which is connected to the vertical rotating shaft 6a by a chain 16a, also rotates. At this time, the vertical rotating shaft 7a rotates in synchronization with the vertical rotating shaft 6a, so that the partition doors 10a and 11a provided on the vertical rotating shaft 7a rotate in synchronization with the partition doors 8a and 9a of the vertical rotating shaft 6a with a phase difference of 90 degrees. FIG. 3(b) shows a state in which the partition door 8a has rotated 45 degrees from the initial position shown in FIG. 3(a). As shown in FIG. 3(b), when the partition door 8a rotates 45 degrees, the partition doors 10a and 11a of the rear rotating gate 3a also rotate 45 degrees from the initial position in conjunction with this movement.

[0035] (3) When the partition door 8a rotates 90 degrees from its initial position, the partition doors 10a, 11a of the rear revolving gate 3a also rotate 90 degrees from their initial positions (see FIG. 4(a)). As a result, the partition door 10a of the rear revolving gate 3a is positioned to block the forward movement of bicycle B (perpendicular to the passage), so the user pushes the rear partition door 10a using the front wheel of bicycle B, just as they did with the front revolving gate 2a. This causes the partition door 10a to rotate around the vertical rotation shaft 7a, which then rotates.

[0036] (4) When the vertical rotating shaft 7a rotates, the vertical rotating shaft 6a of the preceding revolving gate 2a, which is connected to the vertical rotating shaft 7a, also rotates. FIG. 4(b) shows the state in which the partition door 10a has rotated 135 degrees from the initial position. As shown in the figure, when the partition door 10a rotates 135 degrees from the initial position, the partition doors 8a, 9a, 10a, and 11a are arranged in front, behind, and on the left side of the bicycle B, and a partition bar P is arranged on the right side, and the user and his bicycle B are temporarily confined in the area surrounded by these partition doors 8a to 11a, etc. As shown in the figure, this area is large enough for the user and one bicycle B to enter, and two bicycles B cannot enter this area. In addition, in this state, even if there is a following bicycle B, the forward movement of the following bicycle B is prevented by the partition door 9a of the preceding revolving gate 2a, so the following bicycle B cannot reach the following revolving gate 3a.

[0037] (5) Finally, as shown in Figure 4(c), the rear revolving gate 3a rotates 180 degrees from the initial position, allowing entry to the bicycle parking lot, and the user can enter the bicycle parking lot together with bicycle B. During this time, the revolving gates 2a and 3a do not rotate in the opposite direction due to the unidirectional rotating shaft 14a, so third parties cannot exit through the bicycle parking lot gate 1a.

[0038] Next, the gate lock mechanism of the bicycle parking gate 1a and the rotation assist mechanism of the partition doors 8a to 11a will be described with reference to Fig. 5. The rotation assist mechanism is configured to start assisting when the partition doors 8a, 9a, 10a, and 11a rotate approximately 90 degrees from the initial position.

[0039] Fig. 5(a) shows the state of the gate lock mechanism and the rotation assist mechanism when the partition doors 8a-11a are in the initial position. As shown in this figure, the bicycle parking gate 1a is provided with a gate lock actuator 21a, a gate lock cam 22a, and a gate lock cam roller 23a as the gate lock mechanism, and is provided with a rotation imparting spring 24a, an arm 25a, a rotation imparting cam 26a, a rotation imparting cam roller 27a, a toothed belt 28a, a pulley 29a for the front stage rotating gate, a pulley 30a for the cam shaft 33a, a pulley 31a for the rear stage rotating gate, and an idler 32a as the rotation assist mechanism. All of these mechanisms are accommodated under the floor of the bicycle parking gate 1a.

[0040] Here, the camshaft 33a is provided parallel to the vertical rotation shaft 6a and is rotatably supported by a bearing (not shown). The gate lock cam 22a, the rotation imparting cam 26a, the pulley 30a, etc. are attached to the camshaft 33a, and are configured to rotate together. The pulleys 29a, 30a, and 31a have the same diameter and always maintain the same rotation angle. The gate lock actuator 21a is configured to move the rod provided thereto forward and backward in response to an instruction from the above-mentioned lock control device 17a.

[0041] When the partition doors 8a, 9a, 10a, 11a are in the initial position, as shown in Fig. 5(a), the gate lock cam roller 23a abuts and engages with a step portion formed on the outer periphery of the gate lock cam 22a, thereby preventing the gate lock cam 22a from rotating. Therefore, the vertical rotary shafts 6a, 7a connected to the gate lock cam 22a via the pulleys 29a, 30a, 31 are also prevented from rotating, so that the rotary gates 2a, 3a are in the gate lock state. At this time, the rotation imparting cam roller 27a abuts against the recessed portion with the smallest radius of the rotation imparting cam 26a, which is roughly elliptical and recessed in the center, and the rotation imparting spring 24a is in the most contracted state before being extended.

[0042] FIG. 5(b) shows a state in which the gate lock is released and the partition doors 8a, 9a, 10a, and 11a are rotated 30 degrees from the initial position. The gate lock is released by retracting the rod of the gate lock actuator 21a. The retraction of the rod releases the engagement between the gate lock cam roller 23a and the step portion of the gate lock cam 22a, thereby allowing the gate lock cam 22a and the vertical rotation shafts 6a and 7a to rotate. When the gate lock is released and the vertical rotation shafts 6a and 7a rotate, the rotation causes the rotation imparting cam 26a to rotate. When the rotation imparting cam 26a rotates, the rotation imparting cam roller 27a moves away from the center of the rotation imparting cam 26a while following the outer periphery of the rotation imparting cam 26a, and the rotation imparting spring 24a is stretched by this movement, and energy is stored in the rotation imparting spring 24a. That is, the rotation imparting spring 24a is biased in response to the rotation of the rotary gate 2a by a cam mechanism consisting of a rotation imparting cam 26a and a rotation imparting cam roller 27a.

[0043] Then, when the partition doors 8a, 9a, 10a, and 11a rotate 90 degrees (first predetermined angle) from the initial position, the rotation imparting cam roller 27a passes over the protruding top of the rotation imparting cam 26a and comes into contact with the inclined portion, as shown in Fig. 5(c). At this time, the elastic force (returning force) of the rotation imparting spring 24a acts on the rotation imparting cam roller 27a, and this force rotates the rotation imparting cam 26a in the direction of the arrow in the figure. In other words, when the partition doors 8a, 9a, 10a, and 11a rotate 90 degrees from the initial position, they automatically rotate thereafter using the return force of the rotation imparting spring 24a.

[0044] Finally, when the gate lock cam roller 23a has rotated 180 degrees (a third predetermined angle (an additional 90 degrees (second predetermined angle) from the first predetermined angle)) from the initial position, the gate lock cam roller 23a, which has been moving to follow the outer periphery of the gate lock cam 22a, abuts against and engages with a step portion (a second step portion located 180 degrees from the step portion in the initial position) of the gate lock cam 22a, thereby preventing the gate lock cam 22a from rotating, and the rotation of the partition doors 8a, 9a, 10a, 11a (vertical rotation shafts 6a, 7a) is automatically locked and stopped in the same manner as described above. As a result, the partition doors 8a, 9a, 10a, 11a rotate 180 degrees from the initial position and the partition doors 8a, 9a, 10a, 11a stop in the same state as the initial position.

[0045] Next, the power assist mechanism of the bicycle parking gate 1a will be described with reference to Figs. 6 and 7. The power assist mechanism is a mechanism that uses power to assist the initial stage of the partition doors 8a-11a when they start to rotate. In other words, the rotation assistance by the above-mentioned cam mechanism cannot assist the initial stage of the partition doors 8a-11a when they start to rotate due to its structure. Therefore, in the bicycle parking gate 1a of this embodiment, this initial stage of rotation is assisted by power.

[0046] As shown in the figure, the power assist mechanism mainly comprises an on-sensor (rotation detection means) 35a that detects the initial stage of rotation of the rotary gate 2a, an electric motor (rotation drive means) 36a that drives in response to the detection of rotation by the on-sensor 35a, a link arm (drive link means) 37a that rotates the rotation imparting cam 26a in cooperation with the electric motor 36a, and an off-sensor (rotation stop means) 38a that stops the rotation of the electric motor 36a. This power assist mechanism is also disposed and housed under the floor of the bicycle parking gate 1a, just like the above-mentioned gate lock mechanism.

[0047] Here, the link arm 37a is composed of a long and thin plate-like member (in the illustrated example, a substantially diamond-shaped metal plate with both ends tapered), and its central portion is attached to the cam shaft 33a and rotates integrally with the cam shaft 33a. The on-sensor 35a detects the rotation of the link arm 37a. That is, the on-sensor 35a detects the rotation of the partition doors 8a, 9a (the rotation of the rotary gates 2a, 3a) through the detection of the rotation of the link arm 37a. In this embodiment, a proximity sensor is used as the on-sensor 35a, and is disposed at a position that detects that the link arm 37a has rotated a predetermined angle α1 (fourth predetermined angle) from the initial position. As the predetermined angle α1, an angle that detects the initial stage of the rotation of the rotary gates 2a, 3a is selected. In the illustrated example, the predetermined angle α1 is set to 10 degrees. The reference numeral 42a denotes a mounting base for disposing the on-sensor 35a at the position.

[0048] The electric motor 36a is composed of a speed control motor that can adjust the rotation speed of a rotary shaft 39a, and the rotary shaft 39a is arranged parallel to the camshaft 33a. The rotary shaft 39a is provided with a long and thin rotary plate 40a that rotates integrally with the rotary shaft 39a. Cam followers 41a, 41a are arranged on both ends of the rotary plate 40a, and the cam followers 41a, 41a are adapted to revolve around the rotary shaft 39a as the rotary shaft 39a rotates.

[0049] During the rotation, the cam follower 41a comes into contact with and engages with one end of the link arm 37a, causing the link arm 37a to rotate. The contact between the link arm 37a and the cam follower 41a, i.e., the rotation assist of the link arm 37a by the cam follower 41a, starts when the link arm 37a rotates a predetermined angle α1 from the initial position and continues until the link arm 37a rotates a further predetermined angle α2 (fifth predetermined angle). When the predetermined angle α2 has elapsed, the link arm 37a and the cam follower 41a are disengaged, and the rotation assist by the power ends. Here, the predetermined angle α2 can be adjusted by the rotation radius of the cam follower 41a. In other words, by increasing the rotation radius, the cam follower 41a is deeply engaged with the link arm 37a, and the predetermined angle α2 (assist range) is increased. Conversely, when the turning radius is reduced, the engagement between the cam follower 41a and the link arm 37a becomes shallower, and the predetermined angle α2 also becomes smaller.

[0050] The off sensor 38a detects the rotation of the cam follower 41a. In this embodiment, a proximity sensor is disposed on the rotation path of the cam follower 41a as the off sensor 38a. When the cam follower 41a rotates 180 degrees, the off sensor 38a detects this rotation.

[0051] The operation of the power assist mechanism thus configured will be described while showing its relationship with the movement of the rotary gate 2a. When the rotary gate 2a is in the initial position, the rotation imparting cam 26a is in the position indicated by the chain line in FIG. 6 (the origin position).

[0052] When a user pushes bicycle B forward to the position of partition door 8a and rotates partition door 8a by a predetermined angle α1 (10 degrees in the illustrated example) from the initial position while pushing partition door 8a with the front wheel of bicycle B, rotation imparting cam 26a rotates accordingly to the position shown by the solid line in Fig. 6. At that time, link arm 37a also rotates to the position shown by the solid line in Fig. 6, and this rotation is detected by on-sensor 35a.

[0053] When the rotation of the link arm 37a, i.e., the rotation of the rotary gate 2a, is detected by the on-sensor 35a, the detection signal is given to the electric motor 36a, and the electric motor 36a is operated. The operation of the electric motor 36a rotates the rotary shaft 39a, which rotates the rotary plate 40a and rotates the cam follower 41a. The rotated cam follower 41a abuts and engages with one end of the link arm 37a to rotate the link arm 37a. The rotation of the link arm 37a is transmitted to the pulley 30a via the cam shaft 33a, and is also transmitted to the pulleys 29a and 31a via the toothed belt 28. As a result, the partition doors 8a and 9a rotate in conjunction with the link arm 37a. In other words, the rotation of the partition doors 8a and 9a is assisted by the electric motor 36a.

[0054] This rotation assistance continues until the link arm 37a and the cam follower 41a are disengaged. That is, when the link arm 37a rotates a predetermined angle α1 from the initial position and a predetermined angle α2 (48 degrees in the illustrated example) has passed, the engagement between them is released, and the rotation assistance by the electric motor 36a is released. That is, in the illustrated power assist mechanism, the rotation assistance of the partition doors 8a, 9a starts when the partition doors 8a, 9a rotate 10 degrees from the initial position, and ends when the partition doors 8a, 9a rotate another 48 degrees (58 degrees from the initial position). Therefore, during this period, the power of the electric motor 36a is used as an external action for extending the rotation imparting spring 24a, and the burden on the user is reduced.

[0055] Even if the link arm 37a and the cam follower 41a are disengaged, the electric motor 36a continues to rotate. The driving of the electric motor 36a is stopped by a detection signal from the OFF sensor 38a. When the rotating plate 40a rotates 180 degrees from the initial position and becomes the same as the initial position, the OFF sensor 38a detects this state and outputs a detection signal, and the rotational driving of the electric motor 36a is stopped. As a result, the rotating plate 40a stops in the same state as the initial position.

[0056] In this way, the power assist mechanism begins assisting the rotation of the partition doors 8a, 9a from the initial stage when the partition doors 8a, 9a begin to rotate, and the rotation assist by the power of the electric motor 36a is executed up to a preset angle (in this embodiment, 58 degrees from the initial position) before the rotation assistance by the above-mentioned rotation assist mechanism (cam mechanism) begins to function. Therefore, even a user with little strength such as a child or elderly person can enjoy the rotation assistance by power by slightly rotating the partition doors 8a, 9a using a slight force, and can easily pass through the revolving gate.

[0057] It should be noted that the above-described embodiments are merely preferred embodiments of the present invention, and the present invention is not limited to these, and various design modifications are possible within the scope of the present invention.

[0058] For example, in the above-described embodiment, the vertical rotating shafts 6a, 7a, the one-way rotating shaft 14a, and the floating shaft 15a are connected by the sprocket 13a and the chain 16a. However, as long as at least the vertical rotating shafts 6a, 7a are configured to rotate synchronously, they may be connected using other mechanical configurations, such as a mechanism using a toothed belt and pulleys.

[0059] In the above embodiment, the ON sensor 35a detects the rotation of the link arm 37a, but the ON sensor 35a may be configured to detect the movement of another member, for example, the arm 25 linked with the rotation imparting cam 26a, as long as it can detect the initial stage of the rotation of the rotary gate 2a. In the above embodiment, the OFF sensor 38a detects the rotation of the rotary plate 40a, but the OFF sensor 38a may be configured to detect the return of the rotary plate 40a to the initial position by using a timer or other means, as long as it can detect that the rotary plate 40a has reached the same state as the initial position.

[0060] In the above embodiment, the predetermined angle α1 for detecting the initial stage of rotation of the rotating gates 2a, 3a is set to 10 degrees, but the predetermined angle α1 can be another angle (for example, 5 degrees or 15 degrees) as long as it is the initial stage of rotation of the rotating gates 2a, 3a. In the above embodiment, the range of rotation assistance by the power assist mechanism is set to 48 degrees (predetermined angle α2), but the rotation angle of the assisted range is not limited to 48 degrees and can be increased or decreased as appropriate.

[0061] In the above-described embodiment, the initial position of the bicycle parking gate 1a is shown to be such that the partition doors 8a, 9a of the front revolving gate 2a are positioned perpendicular to the aisle, but the partition doors 8a, 9a of the front revolving gate 1a may be positioned parallel to the aisle and the partition doors 10a, 11a of the rear revolving gate 3a may be positioned perpendicular to the aisle. [Explanation of symbols]

[0062] 1. Bicycle parking gate 2 Front revolving gate 3. Rear revolving gate 6 Front vertical rotation axis 7 Rear vertical rotation axis 8,9 Front partition door 10,11 Rear partition door 13 Sprocket 14 One-way rotating shaft 15 Floating shaft 16 Chain 17 Lock control device 21 Gate lock actuator 22 Gate lock cam 23 Cam roller for gate lock 24 Rotation spring 26 Rotation Cam 27 Roller for rotation-imparting cam 28 Toothed belt 29, 30, 31 Pulley 33 Camshaft 35 ON sensor (rotation start detection means) 36 Electric motor (rotation drive means) 37 Link arm (driving link means) 38 OFF sensor (rotation stop means) 39 Rotational Axis 40 Rotating Plate 41 Cam follower F fence P Partition bar

Claims

1. Two revolving gates with two partition doors fixed symmetrically to a vertical axis of rotation; a gate rotation means for mechanically connecting the two revolving gates so that the partition doors are always kept perpendicular to each other while rotating, the two revolving gates being adjacently arranged in parallel with a passage for users accompanied by two-wheeled vehicles; a reverse rotation prevention means for preventing each of the rotary gates from rotating in a reverse direction; The gate rotation means has at least a cam mechanism and a spring that is biased in response to the rotation of the rotating gate, and when either of the two rotating gates is rotated by an external action through a first predetermined angle, the cam mechanism is mechanically operated by the return force of the biased spring, thereby causing the rotating gate to further rotate through a second predetermined angle. a rotation detection means for detecting an initial stage of rotation of the rotary gate; a rotation driving means that drives in response to the detection of rotation by the rotation detection means; a drive link means for rotating the cam of the cam mechanism in cooperation with the rotation drive means; and a rotation stopping means for stopping the rotation of the rotation driving means. A gate for a bicycle parking lot.

2. the drive link means includes a link arm that rotates integrally with the cam of the cam mechanism, and a cam follower that rotates the link arm, The cam follower is disposed so as to rotate about a rotation axis of the rotary drive means, and is driven by the rotary drive means to rotate about the rotation axis, thereby coming into contact with the link arm and rotating the link arm.

2. The gate for a bicycle parking lot according to claim 1.

3. The cam followers are disposed on both ends of a rotary plate provided on a rotary shaft of the rotary drive means, The rotation stopping means detects that the cam follower has rotated 180 degrees around the rotation axis and stops the rotation driving means.

3. The gate for a bicycle parking lot according to claim 2.

4. A gate for a bicycle parking lot as described in any one of claims 1 to 3, characterized in that the gate rotation means further has a gate locking means having the function of automatically locking the vertical rotation axis when the two rotating gates have rotated to a third specified angle.

Images