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KR-20260065364-A - SAFETY CHOCK AND METHOD FOR OPERATING THE SAME

KR20260065364AKR 20260065364 AKR20260065364 AKR 20260065364AKR-20260065364-A

Abstract

A safety wheel chock and a method of operating the same are provided. The wheel chock is applied to support and secure a vehicle wheel. The wheel chock comprises: i) a main body applied to be placed on an inclined ground; ii) a first trigger that is seated on the main body, exposed over the main body, and rotatable; iii) a second trigger that is surrounded by the first trigger and protrudes further from the main body than the first trigger and is rotatable; and iv) a pressure sensor installed on the main body and applied to face the first trigger to measure the pressure applied by the vehicle wheel upon contact with the first trigger.

Inventors

  • 최경식

Assignees

  • 한국전력공사

Dates

Publication Date
20260508
Application Date
20241101

Claims (20)

  1. As a chock applied to support and secure a vehicle wheel, Main body applied to be placed on an inclined surface, A first trigger that is seated on the main body, exposed above the main body, and rotatable, A second trigger surrounded by the first trigger and protruding further from the body than the first trigger and rotatable, and A pressure sensor installed on the main body and applied to face the first trigger and measure the pressure applied by the vehicle wheel upon contact with the first trigger. A chock containing
  2. In paragraph 1, The above main body is, A storage space is formed in which the first trigger and the second trigger are seated, and a bottom portion is applied so that the vehicle wheel is placed thereon, and A column connected to the bottom portion to support the side of the vehicle wheel and in contact with the pressure sensor A chock containing
  3. In paragraph 2, A first rotation axis fixed to the first trigger and the main body to allow the first trigger to rotate, and A second rotating shaft fixed to the first trigger and the second trigger, which fixes the second trigger so that it can rotate. Includes more, The second rotation axis is located on the bottom portion, and the length of the second rotation axis is smaller than the length of the first rotation axis.
  4. In paragraph 2, The above-mentioned first trigger is, Trigger side portions located on each side of the second trigger, and A trigger connecting part that interconnects the upper sides of the above-mentioned trigger side portions and is located on the second trigger. Includes, Among the above trigger side parts, each trigger side part is, A lower part extending in the longitudinal direction of the lower portion and seated in the storage space, with a spring storage hole formed on its rear surface, and An upper piece connected to the lower piece and protruding above the bottom portion to be connected to the trigger connecting portion. Includes, The above chock is a chock further comprising an elastic member received in the spring receiving hole.
  5. In Paragraph 4, The above second trigger is, A trigger base that is seated in the above storage space, A trigger protrusion connected to the above trigger base and forming an angle on a vertical plane, and protruding above the above bottom surface, First leg portions respectively connected to both sides of the trigger protrusion, and Second leg parts connected to the first leg parts while forming an angle on a horizontal plane, inserted into the spring housing hole and connected to the spring A chock containing
  6. In paragraph 5, The above-mentioned chock is, Another spring housed in the above receiving space, and A hook member that moves in contact with the aforementioned other spring and is housed in the aforementioned receiving space A chock that includes more.
  7. In paragraph 6, When the second leg portions are seated in the storage space, the hook member contacts the second leg portions by the other spring and elastically presses the second leg portions.
  8. In Paragraph 7, The upper edge surface of the above-mentioned hook member is a support formed at an angle opposite to the above-mentioned second leg portions.
  9. In paragraph 8, The second leg portions and the hook member are each made of metal, and the lower surface of the second leg portions and the upper edge surface of the hook member are formed as lubricating surfaces.
  10. In paragraph 8, A support beam having an angle of inclination of the upper edge surface with respect to the ground of 20° to 50°.
  11. In Paragraph 7, The above-mentioned hook member is a support located below the pressure sensor.
  12. In Paragraph 4, A support rod further comprising an alarm embedded in the above column and connected to the pressure sensor.
  13. In Paragraph 4, The above bottom portion is a support that further includes a dust-ingress prevention cover installed adjacent to the second trigger in the storage space.
  14. In paragraph 2, The first trigger includes trigger side portions located on each side of the second trigger, and Among the above trigger side parts, each trigger side part is, A lower part extending in the longitudinal direction of the lower portion and seated in the storage space, with a spring storage hole formed on its rear surface, and An upper piece connected to the lower piece and protruding above the bottom portion A chock containing
  15. In paragraph 2, The pressure sensor above is a support including a sloped surface whose slope gradually decreases as it approaches the storage space.
  16. In paragraph 1, The above vehicle wheel is a wheel of a work vehicle that includes an out trigger applied to move vertically relative to the ground and fix it.
  17. As a method of operating a chock according to paragraph 8, A first step in which the vehicle wheel contacts the first trigger, A second step in which the vehicle wheel contacts the second trigger and rotates the second trigger along the rotational direction, A third step in which the second leg portions press the spring and are inserted into the spring housing hole according to the rotation of the second trigger, A fourth step in which the second leg portions are spaced apart from the pressure sensor, and The fifth step in which the above second leg portions are stored in the storage space A method of operating a chock including
  18. In Paragraph 17, In the above fourth step, The above second leg portions are a method of operation for a support member that moves along the upper edge surface of the above hook member toward the storage space.
  19. In Paragraph 18, The above hook member is a method of operation for a support block that compresses by pushing the other spring.
  20. In Paragraph 19, A sixth step in which the vehicle wheel is separated from the second trigger, and Step 7, in which the second leg portions are released from the spring storage hole by the repulsive force of the spring and detach from the storage space by riding along the upper edge of the hook member. A method of operating a chock that further includes

Description

Safety Chock and Method for Operating the Same The present invention relates to a wheel chock and a method of operating the same. More specifically, the present invention relates to a safety wheel chock capable of warning an operator when a vehicle wheel detaches from a pressure sensor after contacting the pressure sensor, or when a pressure exceeding a set value is applied to the pressure sensor. Many serious accidents occur when vehicles are parked on slopes and roll downhill. Therefore, when working on a slope, secure the vehicle by placing wheel chocks behind the wheels to prevent it from moving. However, wheel chocks frequently become dislodged due to the worker's electrical work during power distribution construction. Additionally, when a work vehicle stopped on an incline moves upward and the outrigger securing the vehicle to the ground is removed, if the position of the wheel coming down to the ground does not exactly align with the wheel chock, the vehicle may slide downward, potentially causing a safety accident. FIG. 1 is a schematic drawing of a work vehicle equipped with a chock according to a first embodiment of the present invention. Figure 2 is a schematic diagram showing the operating state of the outrigger in the work vehicle of Figure 1. Figure 3 is a schematic perspective view of the support block of Figure 1. Figure 4 is a schematic exploded view of the support block of Figure 3. Figure 5 is a schematic exploded view of the first trigger and the second trigger included in the support of Figure 4. FIGS. 6 to 9 are schematic cross-sectional operating state diagrams of the support block of FIG. 3 cut along line VI-VI. Figure 10 is a schematic block diagram of the control unit included in the support of Figure 3. Figure 11 is a schematic alarm operation flowchart of the operation method of the chock of Figure 3. Figures 12 and 13 are schematic diagrams of each step of the alarm operation of the chock of Figure 10. Figure 14 is a diagram showing the schematic alarm operation state of the support block of Figure 3. FIG. 15 is a schematic perspective view of a support block according to a second embodiment of the present invention. The technical terms used herein are for the reference of specific embodiments only and are not intended to limit the invention. The singular forms used herein include plural forms unless phrases clearly indicate otherwise. The meaning of "comprising" as used in the specification specifies a particular characteristic, area, integer, step, action, element, and/or component, and does not exclude the presence or addition of other particular characteristic, area, integer, step, action, element, component, and/or group. Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as generally understood by those skilled in the art to which this invention pertains. Terms defined in commonly used dictionaries are further interpreted to have meanings consistent with relevant technical literature and the present disclosure, and are not interpreted in an ideal or highly formal sense unless otherwise defined. For example, the term “applied” described below is interpreted to include both the state in which it is appropriately used and the state prior to appropriate use. Expressions described in the singular in this specification may be interpreted as singular or plural unless explicit expressions such as "one" or "single" are used. In this specification, terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. Such terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present disclosure, the first component may be named the second component, and similarly, the second component may be named the first component. In the flowchart described with reference to the drawings in this specification, the order of operations may be changed, several operations may be merged or some operations may be divided, and certain operations may not be performed. Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. FIG. 1 schematically shows a work vehicle (V) equipped with a chock (100) according to a first embodiment of the present invention. The structure of the work vehicle (V) in FIG. 1 is merely for illustrating the present invention and is not limited thereto. Accordingly, the structure of the work vehicle (V) in FIG. 1 can be modified differently. As illustrated in FIG. 1, when a work vehicle (V) stops or is parked on an inclined ground (G), it may move downward due to the load and cause a safety