JPH0660576U - Escalator cart - Google Patents

Abstract

(57) [Summary] [Purpose] Not only for carrying and traveling luggage on flat ground,
Provided is an escalator cart that can be moved up and down while being placed on an escalator. [Composition] An escalator cart equipped with front wheels at the front and rear wheels at the rear of a vehicle body having a steering handle, the lower surface of the vehicle body being supported by the steps of the escalator, and being raised and lowered as the escalator is raised and lowered. A front sliding part and a rear sliding part that are slidable with respect to the step corners of the escalator are formed at both front and rear positions excluding a portion of the lower surface of the vehicle body in the longitudinal center thereof extending over a substantially predetermined length. A step is formed at the front end portion of the front sliding portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an escalator cart that can be moved up and down while being placed on an escalator, as well as carrying and traveling luggage on a flat ground.

[0002]

[Prior art]

 Conventionally, a front wheel consisting of casters was equipped at the front of the vehicle body with a hand-pushed handle, and a rear wheel was provided at the rear of the vehicle body so that the underside of the vehicle body was supported at multiple step corners of the escalator. A hand truck that can be raised and lowered is known, for example, from Japanese Utility Model Laid-Open No. 1-168359. In this prior art hand truck, there is no problem in carrying work on a flat ground, but when the vehicle body is placed on the steps of the escalator, the front and rear substantially predetermined positions on the lower surface of the vehicle body are divided into a plurality of (two) steps. The structure is supported at the corners, and multiple scooping rollers are used when the vehicle body is lowered from the step.

[0003]

[Problems to be solved by the device]

 As described above, when the vehicle body is placed on the steps of the escalator, if the front and rear approximately predetermined positions on the lower surface of the vehicle body are supported by the corners of a plurality of (two) steps, the vehicle will move continuously. Since it comes into contact with the steps of the escalator at random, it is necessary to lengthen the vehicle body in order to maintain a substantially constant support state, and there are problems such as poor work efficiency. In addition, there is a problem that the structure is complicated and the cost is increased by providing a plurality of scooping rollers used when the vehicle body is lowered from the step. The present invention has been made to solve the above problems.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides (1) a front wheel of a vehicle body having a steering handle and a rear wheel of the vehicle body, respectively. With an escalator cart that moves up and down along with the escalator, slide on the step corners of the escalator at both the front and rear positions excluding the engaging part over the substantially predetermined length of the longitudinal center of the lower surface of the vehicle body. The front and rear sliding parts are formed, and (2) the step is formed at the front end portion of the front sliding part.

[0005]

[Action]

 With the above structure, the present invention provides a front sliding part and a rear sliding part that slide with respect to the step corners of the escalator at both the front and rear positions of the lower surface of the vehicle body excluding the engaging part extending over a substantially predetermined length. Since the car body is placed on the step of the escalator, when the step corner comes into contact with the front sliding part or the rear sliding part, it slides and stops almost at the fixed position, and The front part and the rear part of the vehicle body are in contact with the steps of the escalator centering on the engaging portion of a substantially predetermined length, and are supported randomly in a number of supporting forms without being engaged randomly, and can move up and down efficiently and stably. Further, since the step portion is formed at the front end portion of the front sliding portion, the vehicle body is stably supported with respect to the steps of the escalator, and it is not necessary to lengthen the vehicle body.

[0006]

【Example】

 Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 to 3, reference numeral 1 is a car body of a cart (hand-carrying vehicle), and handle struts 2 are erected on both sides of a rear portion of the car 1, and the hand pushing struts are provided between the upper ends of the struts 2 and 2. A handle 3 is provided. The front portion of the vehicle body 1 is equipped with a pair of left and right front wheels 4 and 4 formed of casters, and the left and right rear wheels 5 and 5 are provided on both sides of the rear portion of the vehicle body 1. Further, the vehicle body 1 is formed in a tapered shape in which a front side is narrow and a rear side is wide in a plan view, and a plurality of carts can be overlapped forward and backward from a space between the handle columns 2 and 2 toward the front side of the vehicle body. The space can be reduced.

A gate-shaped front frame 6 is provided on the front upper surface of the vehicle body 1 so as to be rotatable back and forth around fulcrums 6a, 6a, and stands up substantially vertically in use to superimpose the cart. In the stored state, the vehicle body 1 is rotated to be folded. Further, toggle springs 7, 7 are stretched between the lower end of the front frame 6 and the vehicle body 1 to hold the front frame 6 in an upright state and a fallen state, respectively. Then, the front frame 6 is set upright so that the luggage is loaded on the cargo bed between the front frame 6 and the handle strut 2. A small luggage compartment 8 for carrying small and light luggage is provided between the upper portions of the handle columns 2 and 2, and a luggage holding rope is provided between the front portion of the small luggage compartment 8 and the upper end of the front frame 6. 9 is detachably stretched.

The hand-push handle 3 also serves as a brake operating lever, and when nothing is in contact with the handle 3, a brake 10 provided behind the rear wheels 5 and 5 is engaged, so that the carrier can hold the handle 3. When it is held and rotated downward or upward, the brake 10 is released and the cart can be freely moved forward and backward. Further, as described above, when a plurality of carts are superposed in the front-rear direction, the steering wheel 3 is pivoted upward by the steering wheel portion of another vehicle body that abuts on the steering wheel 3, and the brake 10 is released, and the superposition is completed. Only the brake 10 of the cart of the section is applied. Therefore, when a plurality of carts are placed in a superposed state and the brake 10 of the rearmost cart is released, all the superposed carts can be moved at the same time.

On the left and right sides of the central portion of the lower surface of the vehicle body 1 in the longitudinal direction, continuous bumps and dips made of a cushioning / friction material such as rubber are formed to easily engage the corners of step S of the escalator. A frictional engagement portion 11 having a predetermined length is provided. The front and rear positions of the friction engagement portion 11, that is, the front and rear positions excluding the friction engagement portion 11 are slid with respect to the corners of the step S of the escalator. The front sliding part 12 and the rear sliding part 13 are formed of resin. Further, two step portions 12a and 12b are formed at the front end portion of the front sliding portion 12, and at the boundary portions of the friction engagement portion 11, the front sliding portion 12 and the rear sliding portion 13, concave portions are respectively formed. Has been formed. Then, as shown in FIGS. 4 and 5, the escalator can be lifted and lowered while the escalator is raised and lowered while the step S supports the cart 1 at a substantially predetermined position on the lower surface of the car body 1. .

At the center of the upper end of the front frame 6 of the vehicle body 1, there is provided a front caution plate 14 made of a flexible material and protruding to a length substantially equal to the tip of the lower portion of the vehicle body. The front caution plate 14 rotates downward and is elastically supported by a spring-loaded hinge so that it is normally supported in the state shown in FIG. Even if the lower part of the vehicle body cannot be seen by the carrier when the luggage is loaded on the bed of the vehicle body 1, the front caution plate 14 can confirm the front end position of the vehicle body and prevent the collision, and also the bumper. Also works. Furthermore, it does not get in the way when the front frame 6 is folded.

In the escalator cart of one embodiment configured as described above, when the luggage is loaded on the bed of the vehicle body 1 and the vehicle travels on a flat ground, the carrier holds the hand-pushing handle 3 and moves it slightly upward or downward. By pushing in the rotated state, the brakes 10 and 10 are released and the cart can be freely moved to carry the luggage. Further, when the carrier returns the manual handle 3 to the intermediate position between the upper and lower sides or releases it, the brakes 10 and 10 are applied and the vehicle body 1 stops traveling and stops moving unintentionally.

When the cart is placed on the step S of the escalator and lifted up and down, as shown in FIGS. 4 and 5, the carrier pushes the cart with the hand-pushing handle 3 to continuously move the step of the escalator. Randomly put on S. The supporting state of the cart with respect to the step S at that time will be described when the escalator and the cart shown in FIG. 4 are raised. First, when the corner of step S comes into contact with the front sliding part 12, it is not slidably engaged, but when the corner of step S comes into contact with the frictional engaging part 11, the cart moves to the corner of step S. Ascending while being supported by the front part, the front sliding part 12 is supported by contacting the step parts 12a, 12b or the boundary part between the front wheel 4 and the front sliding part 12 to the corner part of the front step S. Further, the case of the rear wheel 5 or the brake 10 comes into contact with the upper surface of the next step S in contact with the friction engagement portion 11 to support the cart in three steps S. At this time, it is preferable to keep the brake 10 in the engaged state.

When the cart is placed on the step S of the escalator, the center of gravity of the luggage loaded on the bed moves to the rear of the vehicle body 1, but the cart is supported by the three steps S. Especially, since the case of the rear wheel 5 or the brake 10 is in contact with the upper surface of the last step S and supports most of the total weight of the cart, the cart can be raised in a stable state. When the cart reaches the ascending end of the escalator, the carrier can smoothly move from the escalator by holding the hand push handle 3 and pushing out with the brake 10 released. In addition, in FIG. 4, there are four cart support states for the escalator step S, but there are numerous cart support states, and in any case, the cart is stably supported and raised. be able to.

When the escalator and the cart descend as shown in FIG. 5, when the corner of the first step S comes into contact with the front sliding part 12, it is not slidably engaged, but the corner of the step S does not rub. Upon contact with the engaging portion 11, the cart descends while being supported by the corner portion of step S, and the tip portion or the front sliding portion 12 (steps 12a and 12b) of the vehicle body 1 moves toward the front of step S. It is supported in contact with the upper surface or corners. Further, the case of the rear wheel 5 or the brake 10 comes into contact with the upper surface or the corner portion of the next step S that comes into contact with the friction engagement portion 11 to support the cart in three steps S. At this time, it is preferable to keep the brake 10 in the engaged state.

When the cart is placed on the step S of the escalator, the center of gravity of the luggage loaded on the bed moves to the front of the vehicle body 1, but the cart is supported by the three steps S. In particular, since the front end or the front sliding portion 12 (steps 12a, 12b) of the vehicle body 1 is in contact with the upper surface or the corner of the front step S in the first step S, the cart is stabilized. It is possible to support it and lower it. When the cart reaches the lower end of the escalator, the carrier can move smoothly from the escalator by pushing the handhold handle 3 and pushing it out with the brake 10 released. In FIG. 5, the cart is supported by the escalator on three steps S, but the cart is not limited to this support state and there are numerous carts. In any case, the cart should be stably supported and lowered. You can

As described above, when the cart is placed on the step S of the escalator and is moved up and down, if the front slide portion 12 is formed with the step portions 12a and 12b, it has a property of slipping with respect to the corner portion of the step S. However, it is stably supported while being placed on the corner of step S. Further, when the rear sliding portion 13 comes into contact with the corner portion of step S, the rear sliding portion 13 does not slide and engage, and the front and rear portions come into contact with step S. Although the two front wheels are used in the above-mentioned embodiment, one wheel may be used in the same manner.

[0017]

[Effect of device]

 As described above, according to the escalator cart of the present invention, the following effects can be obtained. ． Since the front and rear sliding parts that slide on the step corners of the escalator are formed at both the front and rear positions of the lower surface of the vehicle body in the longitudinal center except for the engaging part that extends over a substantially specified length. When mounting the cart on the step of the escalator that moves up and down, it is stable and efficient with the front and rear parts centering on the engaging part at the center of the lower surface of the vehicle body being supported by the escalator step. Can be raised and lowered well. Further, it is possible to stably support the movement of the center of gravity of the load that occurs when the cart is placed on the step of the escalator. Therefore, it is not necessary to make the vehicle body longer than necessary.

[0018] Since a step is formed at the front end of the front sliding part, it has the property of sliding against the front sliding part or the corner of the step, but is stable when the step is placed on the corner of step S. Can be well supported. Further, when the central portion of the lower surface of the vehicle body in the length direction moves in contact with the step corner portion of the escalator, the front sliding portion can smoothly contact and support the front step.

[Brief description of drawings]

FIG. 1 is a side view of an entire escalator cart according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a rear view of the same.

FIG. 4 is a side view when a cart is placed on an escalator and lifted up.

FIG. 5 is a side view when the cart is placed on the escalator and lowered.

[Explanation of symbols]

 1 Car Body 2 Handle Strut 3 Hand Push Handle 4 Front Wheel 5 Rear Wheel 6 Front Frame 6a Support Point 7 Toggle Spring 8 Parcel Luggage 9 Baggage Holding Rope 10 Brake 11 Friction Engagement Part 12 Front Sliding Part 12a, 12b Step Part 13 Rear Sliding Part 14 Forward caution board S Escalator step

Claims (2)

[Scope of utility model registration request] 1. An escalator cart in which a front wheel of a vehicle body having a steering handle is equipped with front wheels and a rear wheel is equipped with rear wheels, respectively, and a lower surface of the vehicle body is supported by a step of an escalator so that the escalator cart moves up and down as the escalator moves up and down. Forming a front sliding part and a rear sliding part that are slidable with respect to the step corners of the escalator at both front and rear positions of the lower surface of the vehicle body in the central part in the longitudinal direction except for an engaging part extending over a substantially predetermined length. An escalator cart that is characterized. 2. The hand truck according to claim 1, wherein a step portion is formed at a front end portion of the front sliding portion.