JP2006306359A - Escaping means for escalator cart - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an escaping means for an escalator cart allowing it to be freed from an escalator without making any manipulation. <P>SOLUTION: The escaping means to be attached to the tail of the cart body is structured so that a rotor supports the body and the tail of the body is heaved to levitate the rear wheels, capable of returning to the flat place running condition when the leading guide wheel(s) gets on an end plate at the time of freeing. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to an escape device for an escalator cart that is fixed to an escalator in a certain state and keeps a loading platform or a seat horizontal in the escalator.

The cart for luggage is leveled in the escalator to shorten the length of the vehicle body and eliminate spillage accidents. It tries to omit members and instructors. Furthermore, not only a healthy person but also a wheelchair user can use the escalator without care so that the stepped escalator can be used more.

The device is powered by human power without power, and it is lightweight and small. There are no switching devices such as sensors and clutches, so there is no accident caused by their malfunction.

Unlike elevators, escalators are installed along the flow line of people and process a large amount of people continuously, but people carrying carts, shopping cart shoppers, and disabled people in wheelchairs Is currently unavailable. The emergence of escalator-specific carts for airports and mass merchandisers not only improves the operation of airports and mass merchants, but also improves the design of buildings and has a great economic effect. It is not only convenient for people with disabilities, but also helps people with disabilities to participate in the community.

At the upper floor exit in the ascending direction, the cart at the upper level must be pushed out from the step lowered by one step, and at the lower floor exit at the lower direction, the cart at the lower level must be pushed out from the step raised by one step.
When the lower side of the cart is lifted and enters the escalator, the leading caster wheel changes its direction in the direction opposite to the traveling direction, so that it is necessary to reverse the caster wheel when escaping. The cart with the caster wheels turned in the opposite direction must be pushed out after being pushed out by being forced to escape by the escalator instead of being pushed out at the time of escape.
At the exit, the cart can be pushed out from the same level of scaffolding for an instant, and if this timing is removed, the cart stopped without pushing out the cart will block the exit. Existing carts without escape devices rely on operations that can lead to accidents if wrong. Therefore, the cart must escape without any operation.
If the escalator does not stop when the cart that does not go out is blocking the exit, it will lead to a stop accident, and in the case of the exit, the escalator will push in with the step up, so the escalator will collapse and collect the crowd of people who have piled up As a result of crushing with a press, the escalator, especially narrow, has a risk of a major accident because the outlet is completely blocked.
In order to prevent an exit stop accident, an automatic stop device is required and a sensor for detecting the exit stop is required. Since the stop state of the exit is that the person or object intervening between the handrails is stationary and does not match the speed of the step flow, this sensor is used for the person or object intervening between the handrails. If a signal that continues the same distance for a certain time or longer is detected, the emergency stop switch may be operated. It is dangerous to enter the cart unless the escalator has this laser sensor attached to the handrail wall near the exit. The escalator requires this automatic stop device, and the cart to be loaded must not stop at the exit to prevent the automatic stop device from working and stopping the escalator.

The escape device of the present invention supports the weight of the vehicle body in place of the wheels in the escalator, and the cart is braked and the step is never retracted while the step is gripped. This allows the escalator to be carried out with the cart on it. This escape device is not necessary for traveling on flat ground and is released at the same time as the escape and returns to the original state by passing through the step of the end plate.

The drawings are described in detail below.

FIG. 1 is a detailed view of the vicinity of the rear wheel of a cart equipped with an escape device that functions when the vehicle body tilts in the escalator. In the case of (a) running on a flat ground, the escape device floating in the air in the state of jumping outward is When the vehicle body is tilted, the wheels of the escape device behind the rear wheels are grounded as shown in FIG. If there is a grounding point inside the vertical line passing through the rotation center axis of the arm immediately after the grounding, the arm will naturally fall inward, and just before escaping, as shown in FIG. Supporting instead of the wheel, the rear wheel will float in the air. As a result, the cart is discharged in the step flow, but when the wheel in front of the escape device rides on the end plate and stops rotating, it falls outside and returns to the flat ground running state of (a). At this time, since the rotation of the arm has a large radius, the same effect as the rotation of a large wheel is brought about. A spiral wheel having a spiral curve on the outer periphery behind the escape device moves forward while decreasing the radius when the arm falls inward, and thus enters the inner side without resistance without lifting the vehicle body. Also, when the arm tries to return to the outside, it rotates in the direction of increasing the radius and lifts the car body to prevent the cart from moving backward. If the front wheel of the escape device is omitted and only the spiral wheel is used, the spiral wheel, which is also a reverse rotation prevention device, moves backwards without having to enter the inside regardless of the tilt of the vehicle body and float the vehicle body before exiting. The cart will be discharged without letting it go. Pulling the arm inward due to the rotation of the cane or hanetoko means lifting the car body after the ground contact, so that the rotation of the wand or hanetoko is stopped, and the car body is prevented from being bent and deformed. (A) As shown by the dotted line in the figure, if a getter is provided behind the escape device, this getter will contact the ground prior to the escape device when the vehicle is tilted, creating a space where the arm can rotate and rotating inward without resistance. You can make it. The arm of this escape device is stationary at both inner and outer end points and does not move, and from a position slightly inside from the outer stationary position, the spring force works in the direction of pulling inward and is a weak force. Rotate inward. As shown in FIG. 5C, the arm that has entered inside does not return to the outside even when the cart is pushed. In general, the toggle spring works in one direction and stops moving by locking at the end point, and the spring increases the reverse force as it approaches the end point. In order to establish a stationary state at both end points by extending and contracting a small spring like a bicycle stand, a strong spring is required and it does not move easily. When such a toggle spring is used, the spring is too strong to move the arm inward. The spring charged in the escape device of the present invention has a force to float the escape device in the air in a flat ground state and moves inward with a weak force. A bearing is attached in the middle of the arm so as to press the slope with the wheel. With a simple structure, it always moves circularly toward the end point near both end points. Details will be described later with reference to FIG.

When an ascending cart with an escape device is used for a descending escalator, the escape device becomes the leading brake and cannot escape at the exit. Therefore, it is necessary to surely execute whether the escape device is disabled at the time of use in the down direction or whether it is released at the exit even if it is activated. FIG. 2 invalidates the escape device when using the vehicle in a downward direction. When the vehicle is used in an upward direction, the lift of the fly precedes the bending deformation of the vehicle body. Therefore, if the rise of the fly is transmitted to the escape device with a wire and the arm is tilted inward, it will be invalid when used down as shown in (b), and will only operate when used up as shown in (c). Become. Like the escape device shown in FIG. 1, the escape device is based on a spring mechanism using a bearing and a presser. However, both of the fulcrums of the spring move in space, and the spring becomes loose when the arm moves circularly, making it easy to move. is doing. (A) is a flat ground traveling state, and the semi-circular wheel indicated by a broken line is a feeding device that works when the step corner rises between the rear wheel and the escape device during descending flights, and the rear getter is the step when fixing down It can be installed in a position where it does not get on.

FIG. 3 shows an escape device that is released at the descending exit. When the vehicle body is tilted from the flat ground state shown in FIG. 3 (a), the wheel after the escape device contacts the ground first and falls outward. The rear arm and the front rotating body are connected by a connecting rod and a spring. When the rear arm falls back, the front rotating body rotates forward, and when the vehicle body returns to the horizontal level just before escape, the front rotating body is moved to the rear wheel. Support the car body on behalf of. (B) is a state diagram of the descending exit. When the wheel at the tip of the arm rides on the end plate and the arm falls inward, it rotates after the rotating body and returns to the state of (a).

The rear half of the upper and lower cars with two steps on the top is horizontal in the escalator, and the body does not tilt. Since the escalator cart will escape if there is no reverse rotation of the wheel at the exit, it is only necessary to brake the wheel immediately before exiting and release the brake immediately after exiting. In Fig. 4, the spiral wheel just touches the wheel and does not touch it. As shown in (b), the spiral wheel rotates in the direction of biting into the wheel due to the reverse rotation of the wheel, and as shown in (b), at the time of escape, the leading guide wheel rides on the end plate, and the spiral wheel floats upward (a It returns to the flat ground running state shown in

FIG. 5 illustrates the spring mechanism of the escape device of the present invention and shows an embodiment applied to a door. The spring works in the opening direction when the door is opened, and in the closing direction when the door is closed, and the speed of the door is slow when moving toward each end point, and is strongly held at the end point to maintain a stationary state. The structure is such that the presser stored in the case presses the bearing attached to the top of the door to give the door a circular motion. The force that the presser presses in the closed state of (a) and the open state of (c). The direction of lies in the direction of the tangent of the circular motion and presses the door. In the range where the opening / closing operation of (b) is performed, the force acts in the radial direction of the circular motion, and the presser presses in the direction perpendicular to the motion direction, and does not resist the circular motion of the door. One end of the spring is attached to the presser and the other is fixed to a fulcrum whose position can be adjusted in the case. The fulcrum on the holding side makes a circular motion in the space, but when the other fulcrum is in the tangential direction of the circular motion, the expansion and contraction of the spring is large and gives an acceleration to the rotational motion of the door. When the other fulcrum is in the radial direction of the circular motion, the spring length is small and no force that affects the circular motion of the door is generated. The force that presses the door at the end point is adjusted by the strength of the spring, and the speed at which the door moves freely near the end point is adjusted by the position of the spring. The shape of the presser controls the movement of the door. As shown in (d), if the middle part of the presser is an arc centered on the center of rotation of the door, the door can be stopped at any position. (e) is a sealed type in which dust does not enter the case, and the above-described function of the spring mechanism is exhibited not only in a circular track but also in a reciprocating motion in a straight track.

FIG. 6 accommodates the apparatus of FIG. 5 in a cylinder, and processes a mechanism functioning on the plane of FIG. 5 on a cylindrical surface centering on the rotation axis. As shown in (a), the bearing attached to the upper part of the door is pressed down by a cylindrical press cut obliquely. (B) is a developed view of the cutting line, and when the cylinder is made flat, the function of the bearing moving toward both end points by pressing can be understood as in FIG. (C) When bearings are attached to the lower part of the door as shown in the figure, the door moves up and down but no spring is required.

Elevator escape device Is an escape device that is disabled for use on the downhill Escape device to release at the exit Is an escape device for both upper and lower cars Is an illustration of a spring mechanism applied to a door hinge Explanatory drawing of spring mechanism housed in cylinder

Explanation of symbols

(1) Loading platform (2) Horizontal body (3) Stepped body (4) A cane with hinges at both ends
(5) Connecting rod tie rods with hinges at both ends (6) Guide wheels
(7) Spiral wheel (8) Caster wheel (9) Large diameter wheel
(10) Wheel (11) Fan-shaped wheel (12) Arm (13) Per hinge (14) (15) Getter (16) Pull spring (17) Push spring (18) Bearing (19) Presser fitting (20) Wire (21 ) Thrust bearing (22) Slide bush (23) Ground
(24) Escalator end plate (25) Case (26) Door (27) Wall surface to which the door is attached (28) Bearing attached to the top edge of the door
(29) Rotation center of door (30) Rotation center of presser (31) Bolt to adjust the position of fulcrum (32) Stay (33) Elbow pot (34) Shaft (35) Cylinder cut obliquely

Claims (3)

A cart escape device that attaches to the rear end of the vehicle body. The rotating body supports the vehicle body, lifts the rear end of the vehicle body, and floats the rear wheels. apparatus.
An escape device that prevents the wheel from reversing at the exit, brakes the wheel immediately before escaping, and releases the brake immediately after escaping. The escape device stops the rotation of the wheel by causing the spiral wheel to bite into the wheel by reversing the wheel.
The wheel is moved by pressing the hill against the wheel, which is the opposite of rolling down a hill. Using this phenomenon, a circular orbit is a mechanism that moves the bearing attached to the one that moves to the one that is fixed to the one that is fixed using the phenomenon to move in both directions with the spring moving against the one that moves by pressing it with a spring. As well as a reciprocating motion on a straight track, the spring mechanism keeps the stationary state at the end points at both ends and moves slowly toward the end point without permission at each end point.

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