JP3120221U - A stepladder with a harvesting rod suspension mechanism and moving wheels - Google Patents

Abstract

The present invention provides a stepladder having a harvesting rod suspension mechanism and a moving wheel capable of improving the safety factor for high-altitude work, improving the removal speed, and improving the efficiency.
As a harvesting rod suspension mechanism on the back of a tripod stepladder, a harvesting rod receiving guide rail 4, a harvesting rod receiving platform 5, a hanging pulley 6, a receiving pulley 7, a harvesting rod receiving lowering rope 8, and a rope control are provided. The mechanism 9 was provided with a stepladder moving wheel 12 at the lower back.
[Selection] Figure 2

Description

  The present invention is an improvement related to the work at high places that require a stepladder and the movement of the stepladder in the harvesting work of fruits (apples, peaches, persimmons, cherries, etc.) in fruit farmers. At the high place on the stepladder, the movement in the state where the harvest bag containing about 10 kg of fruit is hung on the shoulder is eliminated, ensuring the safety of the work at the high place and reducing the load on the shoulder at all times. In addition, it is necessary to move the stepladder (about 10 kg) by hand to move the fruit harvesting place, but this also includes improvement of the stepladder movement.

  Traditionally, fruit harvesting work has been done with a stepladder under the fruit tree, hanging the harvest bag over the shoulder, climbing the stepladder, stripping the fruit, putting it in a bag over the shoulder, and putting the bag containing the fruit over the shoulder. Getting down the stepladder is a series of tasks. In addition, there is a method in which a self-propelled aerial work platform is loaded with several harvest baskets and lifted to a position where the fruits are grown by electric power (hydraulic pressure, etc.) and harvested fruits. On the other hand, a stepladder is carried by hand to move the harvesting place.

  In order to harvest fruits at high altitudes, a series of work is to climb a stepladder with a harvesting bag, strip the fruit, put it in a harvesting bag, put a harvesting bag containing the fruit on the shoulder and descend the stepladder. Supporting a harvest bag of about 10Kg at the top of the stepladder and picking the fruit from a distant position and putting it in the harvest bag is because the center of gravity moves at a high position on the stepladder. Inevitably becomes unstable work and often falls with a stepladder.

Also, the heavy lifting of the harvest bag, which has become heavy on the shoulders, is a heavy labor.

  Some farmers use a self-propelled aerial work platform that allows safe work at higher altitudes than stepladders, but they are expensive and are not ready for small-scale farmers.

On the other hand, the work of carrying the stepladder by hand occurs in moving the harvesting place, and labor is required. These types of workers are aging and are expected to improve their work.

In order to achieve the above objective, a harvesting rod suspension mechanism was attached to the back of the stepladder currently in use, and a wheel was attached to the bottom of the back.

  When removing fruit at high altitudes, the position of the harvest culm was fixed, and the center of gravity did not move at high altitudes. As a result, the safety factor for high-altitude work was improved and the speed of stripping was increased, improving efficiency.

  In addition, the work of putting a 10 kg harvest bag on the shoulder on the stepladder was eliminated, and the labor of the operator was reduced.

  On the other hand, because the wheels were attached to the stepladder, the labor required to move the stepladder could be reduced. In addition, since it can be used as a hand truck, it is not necessary to prepare a new transport vehicle for carrying harvested culm, reducing the labor required for preparing farm equipment.

  It makes it possible to attach the harvesting rod suspension mechanism and moving wheels to the currently used stepladder with a single touch.

  Hereinafter, embodiments of a stepladder having a harvesting rod hanging mechanism and a moving wheel according to the present invention will be described with reference to the drawings.

Fig. 1 shows the current harvesting situation where the harvesting bag is lowered to the shoulder and the fruit is removed on a stepladder. It can be seen whether the work is performed in an unstable state while the harvesting bag 2 is put on the shoulder on the tripod stepladder 1 and the worker 3 climbs the stepladder and harvests.

FIG. 2A is a perspective view in which a currently used tripod stepladder is equipped with a harvesting rod suspension mechanism of the present invention (only for unloading and cannot be lifted with a load) and a moving wheel. The harvesting rod suspension mechanism is composed of a harvesting rod receiving guide rail 4, a harvesting rod receiving platform 5, a suspension pulley 6, a receiving pulley 7, a harvesting rod receiving rope lowering rope 8, and a rope control mechanism 9. The saddle 10 for fixing and the saddle 11 for fixing the lower part are fixed to a conventional tripod stepladder. Further, the stepladder moving wheel 12 has a structure that can be attached to the tripod stepladder 1 with a one-touch operation using a thumbscrew.

FIG. 2B is a detailed view of the rope control mechanism 9 and illustrates a manual operation mechanism. The rope 8 for lowering the harvesting cradle cradle is wound around the V-groove rotating pulley 13 so that it does not slip into the V-groove. By controlling the rotation of the V-groove rotating pulley 13, the harvesting cradle lowering rope 8 can be wound and unwound. The V-groove rotating pulley 13 is controlled by pushing the brake lever 15 with the brake shoe 14 in the direction of the arrow (A) and hooking it on the lever fixing hook. The cradle 5 is structured not to be lowered. To lower the harvesting cradle cradle 5, it is possible to remove the brake fixing hook 16 and loosen the brake lever 15 gradually in the (b) direction.

FIG. 2C is a detailed view of the rope control mechanism 9 and explains the mechanism of the electric operation. The shaft 17 of the V-groove rotating pulley 13 is connected to the rotating shaft of the gear head 19 by a coupling 18. The V-groove rotating pulley 13 is capable of winding and unwinding the harvesting cradle lowering rope 8 by the rotation of the motor 20.

  FIG. 3 is a perspective view in which a stepladder having a harvesting basket hanging mechanism is used for fruit harvesting work and the harvesting basket 21 is used at a raised position. In this situation, the harvester 21 is put on the harvester 21 on the harvester's guide 5 for the harvester's stand lowering rope 8 pulled up on the guide rail 4 for the harvester's receiver, and the worker 3 peels off the fruit and puts it in the harvester 21. .

  FIG. 4 is a perspective view showing a state where a stepladder having a harvesting basket hanging mechanism is used for fruit harvesting work and the harvesting basket descends and can be taken out. This is a situation in which the worker 3 takes out the harvesting basket 21 containing the fruit.

FIG. 5 is a perspective view in which a stepladder having a harvesting rod hanging mechanism is tilted sideways and the stepladder is moved using the wheels 12 attached to the lower portion of the stepladder.
The tripod stepladder 1 is tilted sideways, and the wheel 12 attached in the present invention is moved with the head of the guide rail for the harvesting cradle cradle. Moreover, the movement with the harvesting basket 21 is also possible.

The current harvesting situation where the harvesting bag is lowered on the shoulder and the fruit is removed on the stepladder. (A) It is the perspective view which equip | installed the currently used tripod stepladder with the harvesting rod suspension mechanism and moving wheel of this invention. (B) It is detail drawing of a rope control mechanism (manual operation). (C) It is detail drawing of a rope control mechanism (electric operation). It is a perspective view which uses the stepladder which has the harvesting suspending mechanism for fruit harvesting work, and is using it in the position where the harvesting shed rose. It is the perspective view which uses the stepladder which has the harvesting basket hanging mechanism for fruit harvesting work, and the harvesting basket descends and is taken out. It is a perspective view which moves the stepladder using the wheel attached to the lower part of the stepladder, falling down the stepladder which had the harvesting rod suspension mechanism sideways.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conventional tripod step stand 2 Harvesting bag 3 Worker 4 Harvest cradle guide rail 5 Harvest cradle 6 Suspension pulley 7 Receipt pulley 8 Harvest cradle lowering rope 9 Rope control mechanism 10 Upper fixing saddle 11 Saddle for lower fixing 12 Wheel for stepladder movement 13 V-groove rotating pulley 14 Brake shoe 15 Brake lever 16 Hook 17 Shaft 18 Coupling 19 Gear head 20 Motor 21 Harvest rod

Claims (3)

  A stepladder with a harvesting rod suspension mechanism and moving wheels.   A stepladder with a hanging mechanism to suspend the harvest.   A stepladder with moving wheels.