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KR-20260065014-A - HOIST

KR20260065014AKR 20260065014 AKR20260065014 AKR 20260065014AKR-20260065014-A

Abstract

A hoist according to one embodiment of the present invention comprises: a main body including a wireless transceiver for operating a motor by receiving power according to a control signal generated at a control interface that receives an operation signal from a wired controller, and for executing wireless control separately from control by the wired controller; a wireless controller wirelessly connected to the wireless transceiver of the main body and generating an operation signal; and a safety sensor unit including a safety sensor, a wireless module, a battery, and a fixing device. An obstacle detection signal from the safety sensor of the safety sensor unit is transmitted to the control interface of the main body via the wireless module of the safety sensor unit and the wireless transceiver of the main body.

Inventors

  • 선우영구
  • 우성우

Assignees

  • 주식회사 대산이노텍

Dates

Publication Date
20260508
Application Date
20241031

Claims (5)

  1. A main body including a wireless transceiver for operating a motor by receiving power according to a control signal generated in a control interface that receives an operation signal from a wired controller, and for executing wireless control separately from control by the wired controller; A wireless controller that is wirelessly connected to the wireless transceiver of the above main body and generates an operation signal, and A safety sensor unit comprising a safety sensor, a wireless module, a battery, and a fixture, and An obstacle detection signal from the safety sensor of the above safety sensor unit is transmitted to the control interface of the main body via the wireless module of the above safety sensor unit and the wireless transceiver of the main body, and The control interface of the above main body can receive an obstacle detection signal from the safety sensor and cut off power to the motor, and The above safety sensor unit is separated from the main body and is fixedly installed by the above fixing device in close proximity to a hook assembly connected to the motor of the main body by a chain. Hoist.
  2. In paragraph 1, The obstacle detection signal from the safety sensor is transmitted to the wireless controller via the wireless module of the safety sensor unit and the wireless transceiver of the main body, and The obstacle detection result of the safety sensor is displayed on the above wireless controller, Hoist.
  3. In paragraph 2, The above safety sensor unit is equipped with an on/off switch, and When the above switch is in the off state, the safety sensor does not perform obstacle detection, Hoist.
  4. In paragraph 3, The above safety sensor unit further includes a signal means, and The above signal means generates a visual and/or auditory signal indicating that the hoist is in operation according to the hoist operation signal transmitted by the control interface of the main body through the wireless transceiver of the main body and the wireless module of the safety sensor unit.
  5. In paragraph 4, The housing of the above safety sensor unit includes a roof part covering the hook assembly and a wing part connected to the periphery of the roof part, and The above wing part is oriented toward the ground at an oblique angle, and The laser signal from the safety sensor is output from the wing part and directed toward the ground at an angle equal to the angle of the wing part, Hoist.

Description

HOIST The present invention relates to a hoist, more specifically, to a hoist with improved safety measures. Generally, a hoist is equipment used for transporting cargo in warehouses, railway stations, mold factories, and casting plants, or for disassembling and assembling machinery in factories; it is a device that lifts heavy objects through motor operation and transports them to a desired location. When lifting and transporting large objects using a hoist, the operator's view may be obstructed. In such cases, the operator may fail to detect obstacles in the movement path. Collision with obstacles during the movement of heavy and bulky products can lead to serious accidents. To address these issues, a technology has emerged that detects obstacles on the movement path of an object using a hoist by equipping the hoist with a camera or the like. One such technology is disclosed in Korean Registered Patent No. 10-2096739 (Title of Invention: Hoist Safety Management System). FIG. 1 is a diagram illustrating a method of detecting the presence of a person or obstacle on the hoist movement path in a hoist of the prior art. The components indicated by c1 and c2 in FIG. 1 are the first camera and the second camera, respectively. These cameras have different monitoring areas. For example, the first camera (c1) may be configured to have a wide monitoring area indicated in yellow in FIG. 1, and the second camera (c2) may be configured to have a relatively narrow monitoring area indicated in red in FIG. 1. In the prior art illustrated in FIG. 1, if a person or obstacle is detected within the monitoring area indicated in yellow while the hoist is moving, measures such as emitting a warning sound or emitting a lamp may be taken. If a person or obstacle is detected within the monitoring area indicated in red, measures to stop the operation of the hoist may be taken. The inventor(s) of the present invention devoted themselves to research aimed at improving the safety measures of a hoist based on the aforementioned prior art. The inventor(s) sought to improve the safety measures of a hoist by utilizing a wireless controller in addition to a wired controller. Currently, hoists must be equipped with a wired controller to obtain certification for domestic sales; however, if only a wired controller is present, the operator cannot operate the hoist while maintaining a sufficient distance from it. With the addition of a wireless controller, the operator can maintain a sufficient distance from the hoist and more actively identify obstacles present in the hoist's movement path. In other words, the safety measures of the hoist can be improved to a certain extent simply by the fact that the hoist is equipped with a wireless controller in addition to a wired controller. Not stopping there, the inventor(s) focused on improving the safety sensor unit for detecting obstacles. As a result, they succeeded in developing a safety sensor unit that is easier to install and maintain compared to prior art and can perform more reliable detection based on heavy loads, leading to the present invention. FIG. 1 is a drawing illustrating a structure for safety measures of a hoist of the prior art. FIG. 2 is a drawing illustrating a control unit including a safety sensor (300) of a hoist according to one embodiment of the present invention. FIG. 3 is a schematic diagram illustrating the exterior of a hoist including a safety sensor (300) according to one embodiment of the present invention. FIG. 4 is a drawing illustrating a control unit including a signal means (500) of a hoist according to one embodiment of the present invention. FIG. 5 is a schematic diagram illustrating the appearance of a hoist including a signal means (500) according to one embodiment of the present invention. FIG. 6 is a drawing illustrating the functional parts of a safety sensor unit including a safety sensor (300) in a hoist according to one embodiment of the present invention. FIG. 7 is a drawing illustrating the functional parts of a safety sensor unit including a signal means (500) in a hoist according to an embodiment of the present invention. The embodiments described below are illustrative for the purpose of explaining the technical concept of the present disclosure, and the scope of the rights of the present disclosure is not limited to the embodiments presented below or the specific descriptions thereof. All technical and scientific terms used in this specification have the meaning generally understood by those skilled in the art to which this disclosure pertains, unless otherwise defined, and all terms used in this specification are selected for the purpose of further clarifying this disclosure and are not selected to limit the scope of the rights of this disclosure. Expressions such as “comprising,” “comprising,” “having,” etc. as used in this specification should be understood as open-ended terms implying the possibility of including other embodiments unless otherw