JPH08164277A - Automatic brake device for human power travel type swing device - Google Patents

Abstract

PURPOSE: To provide an automatic brake device for a human power travel type swing device, capable of ensuring the great enjoyment of a speed, a thrill, an exciting feeling and a pleasure feeling for the purposes of a game, a contest, sports, diversion or the like, and preventing the occurrence of an accident at the start of a travel or during a travel. CONSTITUTION: This device is equipped with a centrifugal brake or an eddy current brake 20 rotatably driven on the rotating motion of a floating wheel 5 fitted to a movable carriage 2, and the centrifugal or eddy current brake 20 automatically operates, when an overspeed occurs, thereby stopping the carriage 2. Also, the device is constituted, so as to keep the carriage 2 standstill for preventing the occurrence of an accident, even when a person near a swing pushes or pulls the body of a user on a suspension rod or a stepping member at the start of a travel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic braking device for a manually driven swing device.

[0002]

2. Description of the Related Art A swing device that has been widely installed in parks, amusement parks, and the like has a simple swinging motion because the swinging body swings forward and backward in a pendulum manner. The rider gets tired in a short time. Therefore, by improving this point, as shown in the front view of FIG. 4 (A) and the side view of FIG. 4 (B), the swing body is moved upward by utilizing the inertial force when swinging the swing body. A movable swing that is moved in one direction along the erected rail is No. 6-39079 (No.
No. 77090). In this movable swing, as shown in the figure, 1 is a pair of left and right parallel rails, which are composed of straight and curved portions and form a closed curve on the same horizontal plane as a whole, but three-dimensionally. It may be a closed curved rail. Reference numeral 2 is a movable carriage with idle wheels supported so as to be able to travel along parallel rails, and the movable carriage 2 is a pair of left and right standing uprights of a frame 3 having a square U-shape in a front view. As shown in the cross-sectional view of FIG. 5, the axles 4 and 4 coaxially projecting inside the portion have floating wheels 5 mounted via ball bearings, respectively, and are suspended at both lower ends of the frame. A clevis 6 (FIG. 4) that pivotally supports the upper end of the rod is projected. 7 is a swing rod of equal length whose upper end is pivotally attached to the clevis 6 via a horizontal pin, and between the lower ends of the swing rods 7 and 7, there are two end portions of a foot hanging member 9 made of a horizontal flat bar. It is fixed. Reference numeral 10 denotes a one-way clutch, which will be described later, provided between the axle 4 and the idle wheel 5. In this type of mobile swing, for example, FIG.
As shown in the perspective view, a pair of horizontal elliptical parallel rails 1
4 is erected at an appropriate height via a plurality of support columns, and the user can mount the footrest 9 on the parallel rail 1 as shown in FIG. 4 (B).
Stand or sit on it and bend the upper and lower body periodically as necessary to shake the suspension rod and footrest in the front-back direction like a pendulum as shown by the arrow in the same manner as a conventional swing. To move. Then, in the latter half of the forward stroke of the footrest, the total energy of the user and the swing main body becomes velocity energy, which moves the movable carriage forward, but during the backward stroke, the action of the one-way clutch causes the movable carriage 3 to move. Does not move,
At the next forward stroke, the user and the swing main body repeat the action of moving forward together with the moving carriage. As a result, the movable carriage is intermittently biased and moves forward intermittently each time the latter half of the forward stroke of the swing of one cycle. As shown in FIG. 6, the one-way clutch 10 has an inner cylinder 11 fitted to the axle 4 and an outer cylinder 12 that is inserted into the inner cylinder 11 and is rotatable only in one direction. The outer cylinder 12 is fixed to the center hole of the idle wheel 5. Outer cylinder 12
Is free to rotate in the forward direction (counterclockwise direction shown by the arrow in FIG. 4B) with respect to the inner cylinder 11, but is not rotatable in the clockwise direction. The inner cylinder 11 is fixed to the movable carriage 2 that suspends the swing body 3 via the axle 4. Therefore, the idle wheel 5 is allowed to rotate around the axle 4 only in the counterclockwise direction, and the dolly cannot be reversed. According to this type of one-way clutch, although the idle wheel is always free to rotate in the forward direction, like the one-way clutch of the free wheel conventionally used for the sprocket of the rear wheel of the bicycle,
The rotation in the opposite direction is automatically locked, and at that time, the floating wheel acts as a fixed wheel, so that the movable carriage cannot reverse due to the frictional force between the movable carriage and the rail.

[0003]

A movable swing of this kind is a swing suspended from wheels running on a circulating rail, and a swing radius of the rail circling portion is about 1 if it is small.
m. The traveling speed is about 5 for those who are good at handling
In addition to being able to reach speeds of up to m / sec, this mobile swing is also installed in a general park where there is no guardian, and because it is used by unspecified people, a nameplate for handling caution is posted, but the user Since it is not expected that the number of occupants and the weight limit will be always obeyed, the torque generated by the centrifugal force at the turning portion or the rotational movement that suddenly occurs at the curved inlet portion can reach a considerably high level. On the other hand, the mobile swing does not seem to be a flexible member such as a rope or chain in a conventional swing in order to effectively swing and continue traveling due to the human power, and it seems that the suspension swing is an integral rod or pipe. A rigid material is desirable.
Therefore, if the suspension rod, the footrest, and the pivoting pivot bearing at the upper end of the suspension rod are movable only in the traveling direction and have a rigid structure in the lateral direction (such as a rigid frame structure), bending or bending caused by the above-mentioned force during high-speed traveling will occur. The twisting stress becomes excessive and may cause a breakage accident. However, in order to reduce these stresses, increasing the size of the member causes an increase in weight, which makes it difficult to manually run the swing.

The present invention has been proposed in view of the above circumstances, and it is intended for games, competitions, sports, mood change, etc. to enjoy a great deal of speed, thrill, excitement and pleasure and to prevent accidents from occurring. It is an object of the present invention to provide an automatic braking device for a manually driven swing device.

[0005]

Therefore, according to the first aspect of the invention, a pair of left and right parallel rails are erected at an appropriate height by a plurality of support columns that are erected on the ground at appropriate intervals to provide a smooth surface. A loop-shaped parallel rail forming a closed curve, a movable carriage having a pair of left and right idler wheels rotatably supported by the parallel rail, and a pair of left and right wheels suspended from the lower end of the movable carriage. A vertically long rectangular swing body that is formed of an equal-length long vertical suspension rod and a footing material that connects the lower ends of the rods and is suspended in a swingable manner in the traveling direction of the movable carriage and in the lateral direction at a right angle to it. The left and right ends of the movable carriage are fixed to the left and right ends, respectively, and the free wheels of the idler wheel are attached between the horizontal shaft and the center holes of the idler wheels that are externally inserted on the horizontal shaft. However, the rotation is regulated except when moving forward. In a human-powered swing device equipped with a one-way clutch, a centrifugal brake or an eddy current brake attached to the movable carriage and driven by the rotation of the idler wheel to rotate is provided. The centrifugal wheel or the eddy current brake is automatically operated when the number of rotations exceeds a set value, thereby stopping the rotation of the idler wheel.

According to the second aspect of the present invention, the right and left 1 are erected at an appropriate height by a plurality of support columns erected on the ground at appropriate intervals.
A loop-shaped parallel rail which is composed of a pair of parallel rails and forms a smooth closed curve, a movable carriage having a pair of left and right idler wheels that are rotatably supported and move along the parallel rail, and a movable carriage of the movable carriage. It is formed by a pair of left and right long vertical suspension rods of equal length that are hung at the lower end and leg-hanging members that connect the lower ends of the rods, and are suspended in the traveling direction of the movable carriage and in the lateral direction at a right angle to it. The movable trolley provided between the vertical rectangular swing body and the horizontal shaft having the left and right ends fixed to the left and right ends of the movable trolley and the center hole of each idler wheel inserted on the horizontal shaft. In a human-powered swing device that is equipped with a one-way clutch that allows free rotation of the idler wheel only when moving forward, but restricts the rotation except when moving forward, the upper end of the suspension rod of the movable carriage is Sideways above and above the rail The rear end is pivotally supported by the fulcrum pin and extends forward substantially parallel along the rail, and the lower part of the center part is provided with a brake shoe whose lower end abuts the upper surface of the rail. A rapid extension in which the lower end is pivotally attached to an intermediate position between the fulcrum pin of the brake shoe lever and the brake shoe, and the lower end is pivotally attached to a position slightly lower than the upper end of the suspension rod via a lateral pin.
A slow descent type almost vertical dashpot,
A second dashpot of a rapid rising-slow descending type in which a lower end is attached to a front part of the movable carriage and an upper end abuts a lower surface of a front end of the brake shoe lever, and a second dashpot attached to the front end of the movable carriage. It has a spring that constantly urges the front end of the brake shoe lever downwards.When the suspension rod swings with a large amplitude, the brake shoe does not perform a braking action, but only when the suspension rod has a small amplitude inclination. The brake shoe is characterized by performing a braking action.

The invention of claim 3 is characterized in that the braking device of claim 1 and the braking device of claim 2 are provided side by side on the same movable carriage.

[0008]

In the present invention, the braking device for preventing overspeed in the original normal operation of the manual traveling type swing device by the user, and the swing device generated during the irregular handling by the operator. It can be roughly divided into automatic braking devices for braking motion. First, in the former, as shown in the first embodiment of FIG. 1, a centrifugal brake or an eddy current brake driven by the rotation of an idle wheel is used as a braking device, and this is attached to a movable carriage to connect the idle wheel to the belt. , When the rotation speed of the rope, chain, gears, etc., exceeds the set rotation speed, the rotation of the idle wheel is stopped by automatically operating as a brake. According to the first embodiment as described above, both the centrifugal brake and the eddy current brake are most preferable as the safety device because the rotation speed increases and the braking force increases. Next, in the latter case, as an operation other than the normal operation, for example, a person near the person suddenly pushes a hanging rod, a footrest or a person on the footrest due to curiosity or whims, or Performing an irregular operation such as pulling, the swing swings or moves suddenly, which is dangerous. Therefore, even if the suspension rod is tilted in one direction, the suspension rod is prevented from swinging. In this case, in the second embodiment, in this state a (FIG. 2), both the first and second dashpots are shortened, and the brake shoe maintains the braking state in which the rail is pressed. However, when the suspension rod swings due to the operation of a regular swing, when the suspension rod rapidly comes to the position a, the first dashpot does not contract rapidly, so the brake shoe is pushed up. At that time, the second dashpot is released, and the rod rapidly rises following the upward movement of the brake shoe lever. As a result, the brake is released and the traveling carriage is ready for traveling. In the braking device of the present invention, when the user himself travels on a swing at high speed, the braking device that detects the overspeed and stops the movable carriage is the most preferable braking device that increases the braking force as the traveling speed increases. , For those who want to move the swing by touching it on the ground, push or pull the suspension rod to prevent accidents.
The dolly can be locked automatically to prevent it from moving.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.
FIG. 1 is a side view showing a first embodiment suitable for preventing an accident due to overspeed during traveling due to its original proper operation, and FIG. 2 is an irregular movement of a swing device caused by an inadvertent operator. 2 is a side view showing a second preferred embodiment for preventing the occurrence of danger due to the above, and FIG. 3 is a diagram showing the speed distribution of the movable carriage in the human-powered swing of FIG.

First, in the first embodiment shown in FIG. 1, the same reference numerals as those in FIGS. 4 to 5 designate the same members, respectively, and 20 denotes an idle wheel pivotally supported by the frame 3 of the movable carriage 2. 5 is a centrifugal brake or an eddy current brake mounted on the frame 3 in parallel with the axial direction.

In such a structure, the centrifugal brake or the eddy current brake 20 is rotatably driven by the idle wheel 5 via interlocking members such as a belt, a chain and a tooth gear. Now, when the rotation speed of the idle wheel 5 rises and exceeds the set rotation speed, the centrifugal brake or the eddy current brake 20 is automatically operated by the action of a rotation speed sensor (not shown) to rotate the idle wheel 5. To stop. Therefore, the traveling of the movable carriage is stopped, which can prevent the occurrence of an accident due to the overspeed of the movable carriage. In the first embodiment as described above, since the structure is such that the rotation speed of the idle wheel increases and the braking force of the brake increases, it can be said that it is the most suitable safety device as the overspeed preventing means.

Next, in the second embodiment shown in FIG. 2, the same reference numerals as those in FIG. 1 denote the same members as those in FIG.
Reference numeral 0 denotes a brake shoe lever, the rear end of which is a central portion of the frame 3 and is pivotally supported on the frame 3 via a lateral fulcrum pin 31 at a position directly above the rail 1 which penetrates the frame 3 in the front-rear direction. A front end of the brake shoe 32 extends substantially parallel to the front end of the frame 3, and a brake shoe 32 is provided on the lower surface of the central portion, the lower end of which contacts the upper surface of the rail 1. Three
3 is a first dash pot of a rapid extension to slow reduction type, and the upper end of the first dash pot 33 is located at an intermediate position between the fulcrum pin 31 and the brake shoe 32 of the brake shoe lever 30 via a horizontal pin 34. Is pivotally supported on the side plate of the frame 3, and the lower end thereof is pivotally attached to the horizontal pin 36 on the eye plate 35 which is provided at a position slightly lower than the upper end of the suspension rod 7 so as to project forward. The second dashpot 37 is a rapid rising / slow-down type fixed to the inner surface of the side plate of the frame 3, and its upper end is in contact with the lower surface of the front end of the brake shoe lever 30. 38 is a spring whose upper end is fixed to the inner surface of the upper end of the side plate of the frame, and whose lower end is the brake shoe lever 3
The front end portion 39 of 0 is urged downward.

By the way, in this type of human-powered swing, if the user swings the swing to move forward when there is no brake and there is no wind, as shown in FIG.
It runs intermittently with each swing of the hanging rod, and its peak speed is about 5.5 m / s for a good person and less than 1 m / s for a poor person or a light person, depending on the skill of the rider. There are variations. On the other hand, when several people on the ground push and pull, it can easily reach 5 m / s, and when there is a tail wind of 20 m / s, it reaches 8 m / s or more. However, in the case of these external forces, the swing does not swing, and the suspension rod travels in an inclined posture maintaining an almost constant angle.

In the brake having the structure shown in FIG. 2, the brake shoe 32 does not have time to contact the rail 1 when the suspension rod is intermittently traveling while reciprocally swinging. Therefore, the brake does not act. When the suspension rod is traveling in an inclined posture based on an external force that does not reciprocate, the brake shoe 32 presses the rail to apply a brake. Therefore, in the structure of the present embodiment, the brake shoe 32 is provided so as to project from the brake shoe lever 30 so that the brake shoe 32 can contact and be separated from the rail 1, and the second dashpot 37 reduces the descending speed of the brake shoe 32. Make sure that the suspension rod does not descend after about 1.7 seconds of one round trip. The first dashpot 33 prevents the brake shoe from being pushed up and coming into contact with the rail 1 for each reciprocation when the suspension rod swings. When the suspension rod 7 is stopped at the position a by the external force, the first dashpot is shortened and the brake shoe 32 comes into contact with the rail to perform the braking action.

In the figure, the abnormal operation of moving the suspension rod from the position b to the position a at a low speed as shown by the solid arrow means that a person on the ground swings the swing rod of the swing, the footrest or the person who got on it. This is a pushing or pulling operation, in which case the swing, that is, the suspension rod, remains tilted in one direction and does not swing.
In this state a, both the first and second dashpots 33, 3
7, the brake shoe 32 presses the rail 1 to maintain the braking state. However, when the swing swings normally, the first dashpot 33 does not contract rapidly when the suspension rod rapidly reaches the position a, so the brake shoe 32 is pushed up. As a result, the second dashpot 37 is released and rapidly extends to follow the brake shoe lever 30 and its rod rises. Next, when the swing bar is retracted to the positions b to c, the first dash pot 33 extends rapidly and the second dash pot 37 does not contract suddenly.
Remains in the ascending position and tries to descend slowly. By properly setting this speed, the braking force can be exerted only during abnormal handling without braking during normal operation.
In short, according to such a braking device, when the suspension rod swings at a small speed, the truck is restrained by the rail, but when swinging at a large speed, the truck is not restrained by the brake. Of. In both the first and second embodiments, it goes without saying that instead of pressing the shoe against the rail, the shoe may be pressed against the idle wheel or axle for braking the bogie.

[0016]

In summary, according to the first aspect of the present invention, a pair of left and right parallel rails are erected at an appropriate height by a plurality of support columns erected on the ground at appropriate intervals to form a smooth closed curve. A movable carriage having a loop-shaped parallel rail and a pair of left and right idler wheels pivotably supported along the parallel rail, and a pair of left and right equal lengths suspended at the lower end of the movable carriage. A vertically long rectangular swing body that is formed by a long vertical suspension rod and a footing material that connects the lower ends thereof and is swingably suspended in the traveling direction of the movable carriage and in the lateral direction at a right angle thereto, and the movable carriage. The left and right ends of the idler wheels are attached between the horizontal shaft and the center holes of the idler wheels that are externally inserted on the horizontal shafts, and the idler wheels freely rotate only when the movable carriage advances. Unidirectional to allow rotation, but to regulate its rotation except when moving forward In a human power traveling type swing device comprising a latch, a centrifugal brake or an eddy current brake which is attached to the movable carriage and is rotated by being driven by rotation of its idler wheel is provided, and the rotation speed of the centrifugal brake or the eddy current brake is If the centrifugal brake or eddy current brake is automatically activated when the value exceeds the set value, the rotation of the idler wheel is stopped, and if the manually driven swing that is traveling along the rail becomes overspeed. ,
INDUSTRIAL APPLICABILITY The present invention is extremely useful industrially because an automatic braking device for a manually driven swing device that automatically stops the traveling of the movable carriage and prevents accidents due to overspeed is obtained.

Further, according to the invention of claim 2, a loop having a pair of left and right parallel rails erected at an appropriate height by a plurality of support columns erected on the ground at appropriate intervals to form a smooth closed curve loop -Shaped parallel rail, a movable carriage having a pair of left and right idler wheels rotatably supported along the parallel rail, and a pair of left and right equal lengths suspended at the lower end of the movable carriage. A vertical rectangular swing body which is formed of a vertical hanging rod and a footing material that connects the lower ends thereof and is swingably suspended in the traveling direction of the movable carriage and in the lateral direction at a right angle thereto, and the movable carriage. It is attached between the horizontal shaft with the left and right ends fixed to the left and right ends and the center hole of each idler wheel that is externally inserted on the same horizontal axis, and allows free rotation of the idler wheel only when the movable carriage advances. A one-way clutch that allows, but restricts its rotation except when moving forward. In a human-powered swing device equipped with a lever, the rear end is pivotally supported by a lateral fulcrum pin above the upper end of the suspension bar of the movable carriage and directly above the rail, and is substantially parallel along the rail. The brake shoe lever, which extends forward and has a lower end protruding from the lower surface of the central portion, the lower end of which is in contact with the upper surface of the rail, and the upper end of which is pivotally mounted at an intermediate position between the fulcrum pin of the brake shoe lever and the brake shoe. In addition, the lower end of the suspension rod is pivoted at a position slightly lower than the upper end of the suspension bar via a horizontal pin, and the first to the vertical dashpot of the vertical extension type is a type of rapid extension to slow extension and the front of the movable carriage. The lower end is attached to the
A second dashpot of rapid rising-slowly descending type whose upper end abuts the lower surface of the front end of the brake shoe lever, and a spring attached to the front end of the movable carriage that constantly urges the front end of the brake shoe lever downward. The above-mentioned brake shoe does not perform a braking action when the suspension rod swings with a large amplitude, and the brake shoe performs a braking action only when the suspension rod tilts with a small amplitude. When a person next to the swing type suddenly pushes the hanging rod, the footrest, or the user on the footrest forward or pulls backward when starting the swing, the suspension rod tilts in one direction. However, since the movable carriage is automatically braked and held at a fixed position without moving, an automatic braking device for a human-powered swing device that prevents accidents caused by unexpected movement of the carriage is obtained. The present invention is extremely useful on the industry.

According to the third aspect of the present invention, the braking device according to the first aspect and the braking device according to the second aspect are provided side by side on the same movable carriage, thereby preventing an accident due to overspeed that occurs during traveling of the movable carriage. Along with this, a human-powered swing device that securely holds the movable carriage for safety when a person near the swing on the ground pushes or pulls the body of the user on the hanging rod or footrest when starting traveling. The present invention is extremely useful in the industry because it can obtain the automatic braking device.

[Brief description of drawings]

FIG. 1 is a side view showing a structure for preventing overspeed during traveling by a normal operation according to a first embodiment of the present invention.

FIG. 2 is a side view showing a structure for preventing a runaway by a careless operator before starting traveling according to a second embodiment of the present invention.

FIG. 3 is a diagram showing a traveling speed distribution of a movable carriage in the manually driven swing of FIG.

[Fig. 4] Japanese Utility Model Laid-Open No. 6-39079 (Japanese Patent Application No. 4-7709)
(0) is a front view and a side view showing a moving carriage and a swing main body of a mobile swing proposed by No. 0).

5 is a vertical cross-sectional view showing an idler wheel which is a V portion of FIG.

FIG. 6 is an enlarged view showing the one-way clutch of FIG.

FIG. 7 is an overall perspective view showing an oval erection rail composed of the parallel rails shown in FIG.

[Explanation of symbols]

 1 parallel rails (rails) 2a, 2b movable carriage 3 frame 4 axle 5 idler wheel 6 clevis 7 suspension rod 8 balance material 9 foot hanging material 10 unidirectional clutch 20 centrifugal brake (eddy current brake) 30 brake shoe lever 31 fulcrum pin 32 Brake shoe 33 First dashpot (rapid extension to slow contraction type) 34 Horizontal pin 35 Eye plate 36 Horizontal pin 37 Second dashpot (rapid rise to slow descent type) 38 Spring 39 Front end of brake shoe lever Department

Claims (3)

[Claims] 1. A loop-shaped parallel rail having a pair of left and right parallel rails erected at an appropriate height by a plurality of support columns erected on the ground at appropriate intervals, and a loop-shaped parallel rail having a smooth closed curve, and the parallel rails. A movable carriage having a pair of left and right idler wheels that are rotatably supported and move along, and a pair of right and left long vertical suspension rods of equal length suspended from the lower end of the movable carriage and between the lower ends thereof. A vertically long rectangular swing body that is formed by connecting footing materials and is swingably suspended in the traveling direction of the movable carriage and in the lateral direction at a right angle to this, and the left and right ends are fixed to the left and right ends of the movable carriage. It is attached between the horizontal shaft and the center hole of each idler wheel that is externally inserted on the horizontal axle, and allows free rotation of the idler wheel only when the movable carriage is moving forward. A human-powered vehicle equipped with a one-way clutch that regulates movement. The runco device is equipped with a centrifugal brake or an eddy current brake that is attached to the movable carriage and is driven by the rotation of its idler wheel to rotate.When the rotation speed of the centrifugal brake or the eddy current brake exceeds a preset value, the centrifugal brake is rotated. An automatic braking device for a manually driven swing device, characterized in that rotation of the idler wheel is stopped by automatically operating a brake or an eddy current brake. 2. A loop-shaped parallel rail having a pair of left and right parallel rails erected at an appropriate height by a plurality of support columns erected on the ground at appropriate intervals, and a loop parallel rail having a smooth closed curve, and the parallel rails. A movable carriage having a pair of left and right idler wheels that are rotatably supported and move along, and a pair of right and left long vertical suspension rods of equal length suspended from the lower end of the movable carriage and between the lower ends thereof. A vertically long rectangular swing body that is formed by connecting footing materials and is swingably suspended in the traveling direction of the movable carriage and in the lateral direction at a right angle to this, and the left and right ends are fixed to the left and right ends of the movable carriage. It is attached between the horizontal shaft and the center hole of each idler wheel that is externally inserted on the horizontal axle, and allows free rotation of the idler wheel only when the movable carriage is moving forward. A human-powered vehicle equipped with a one-way clutch that regulates movement. In the runco device, the rear end is pivotally supported by a lateral fulcrum pin above the upper end of the suspension rod of the movable carriage and directly above the rail, and extends substantially parallel to the front along the rail and on the lower surface of the center part. The brake shoe lever has a lower end protruding from the upper surface of the rail, and the upper end is pivotally attached to an intermediate position between the fulcrum pin of the brake shoe lever and the brake shoe. A vertically extending first dashpot of a rapid expansion type to a slow contraction type, which is pivotally attached at a position slightly below the upper end via a horizontal pin, and a lower end portion is attached to the front part of the movable carriage, Is attached to the front end of the movable trolley and a second dashpot of a rapid ascending / slow descending type that makes contact with the lower surface of the front end of the brake shoe lever, and the front end of the brake shoe lever is always lowered. When the suspension rod swings with a large amplitude, the brake shoe does not perform a braking action, and only when the suspension rod has a small amplitude tilt, the braking shoe has a braking action. An automatic braking device for a human-powered swing device. 3. An automatic braking device for a manually driven swing device, wherein the braking device according to claim 1 and the braking device according to claim 2 are provided side by side on the same movable carriage.