KR100657975B1 - Elasticity variable model park tree support device - Google Patents

Elasticity variable model park tree support device Download PDF

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Publication number
KR100657975B1
KR100657975B1 KR1020060100319A KR20060100319A KR100657975B1 KR 100657975 B1 KR100657975 B1 KR 100657975B1 KR 1020060100319 A KR1020060100319 A KR 1020060100319A KR 20060100319 A KR20060100319 A KR 20060100319A KR 100657975 B1 KR100657975 B1 KR 100657975B1
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South Korea
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elastic
tree
support
induction cylinder
cylinder
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KR1020060100319A
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Korean (ko)
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최한순
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(주)케이지엔지니어링
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G17/00Cultivation of hops, vines, fruit trees, or like trees
    • A01G17/04Supports for hops, vines, or trees
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protecting plants
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G2/00Vegetative propagation

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Botany (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Developmental Biology & Embryology (AREA)
  • Supports For Plants (AREA)

Abstract

A variable type elastic tree support capable of maintaining the installation width of the support portion in variable shape without regard to the diameter change of a tree trunk due to the growth of the tree is provided. The tree support avoids unnecessary repeated support exchanging and installing work. The variable elastic tree support comprises: an installation frame(1) attached with an elastic induction cylinder(12) in four directions; an L-shaped elastic support rod(2) connected to a buffer compression member(21) at the upper part and monolithically formed with an elastic support flap(22) at the distal end of the bent lower side; and a cylinder fixing part comprising a mount groove and a fixing cover to fix the elastic induction cylinder. The elastic induction cylinder is installed with a buffer spring(S) on the outer surface of a fixing frame and additionally can contain a cap(121) which is removably coupled by a screw(P).

Description

탄성 가변형 공원 수목 지지장치{Elasticity variable model Park tree support device}Elasticity variable model Park tree support device

도 1은 본 발명에 따른 탄성 가변형 공원 수목 지지장치 부분 분해사시도Figure 1 is an exploded perspective view of a part of the elastic variable park tree support device according to the present invention

도 2는 본 발명에 적용되는 호울덮개의 개략 사시도Figure 2 is a schematic perspective view of the hole cover applied to the present invention

도 3은 본 발명에 따른 탄성 가변형 공원 수목 지지장치의 설치사용상태 단면도3 is a cross-sectional view showing the installation and use of the elastic variable park tree support apparatus according to the present invention

< 도면 주요부위에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

1 : 설치프레임 2 : 탄성 버팀대 3 : 호울덮개1: mounting frame 2: elastic brace 3: hole cover

11 : 고정틀 12 : 탄성 유도실린더 21 : 완충압착부재 11: fixed frame 12: elastic induction cylinder 21: cushioning pressing member

22 : 탄성지지편 31 : 실린더 고정부 311 : 안착요홈 22: elastic support 31: cylinder fixing part 311: seating recess

312 : 고정덮개312: fixing cover

본 발명은 도로변 등에 식수된 가로수를 보호하기 위한 지지수단에 관한 것으로, 더욱 상세하게는 수목(樹木) 성장에 따른 나무기둥의 직경 변화에 따라 그를 지지하는 기구적 장치구성 또한 탄력적으로 자동 조절되도록 하여, 수목의 성장변화에 구애받음 없이 항상 안정적인 설치폭을 유지시킬 수 있도록 한 탄성 가변형 공원 수목 지지장치에 관한 것이다.The present invention relates to a support means for protecting roadside trees planted on roadsides, and more particularly, to automatically adjust the mechanical device configuration to support them according to the change in the diameter of the tree column according to the growth of trees (樹木) In addition, the present invention relates to an elastically variable park tree support device that can maintain a stable installation width regardless of changes in tree growth.

일반적으로 가로수 등과 같은 수목은 도시 미관을 활력 있고, 보다 자연 친화적인 형태로 가꾸기 위해 조성되는 인위적 형태의 녹지수단으로서, 이와 같은 가로수로서의 수목은 묘목을 오랜 기간 정성스럽게 가꾸어 큰 나무로 성장시키는 과정을 통해 조성된다.In general, trees such as roadside trees are artificial forms of greenery that are designed to enhance urban aesthetics into a more natural and more friendly form. Through the composition.

그러나, 상기 묘목이 자라 수목으로 되는 과정에서는, 각종 인위적인 외압과 자연환경에 의한 간섭(강풍) 등이, 지속적이고, 반복적인 형태로 발생하게 되고, 이와 같은 유해한 환경적 요인으로 인해 수목이 올바른 성장과정을 거치지 못한체, 종종 쓰러지거나 부러지는 심각한 훼손의 우려를 갖게 되는 것인바;However, in the process of growing the seedlings to be trees, various artificial external pressures and interferences caused by the natural environment are generated in a continuous and repetitive form, and the trees grow correctly due to such harmful environmental factors. Untreated, there is a risk of serious damage that often falls or breaks;

따라서, 이러한 가로수 등의 수목은 외부 유해적 환경요인, 다시 말해, 강풍에 의해 수목이 뿌리채 뽑히거나, 혹은 기둥이 부러지는 현상 등을 방지하기 위하여, 통상 그 나무기둥에 지지대를 설치하게 됨이 일반적이다.Therefore, the trees such as roadside trees are usually installed on the pillars of the tree in order to prevent the external harmful environmental factors, that is, the roots are pulled out by the strong wind or the pillars are broken. It is common.

이에, 전술한 바와 같은 이유로 설치되는 종래 지지대의 통상적 구성을 살펴 보면, 이는 목재 등을 철선으로 엮어 단순히 수목을 고정되게 한 정도에 불과한 구성임을 알 수 있다.Thus, looking at the conventional configuration of the conventional support that is installed for the same reason as described above, it can be seen that this is a configuration that is merely a degree to fix the wood simply by weaving wood with an iron wire.

하지만, 이와 같은 종래의 수목지지대는 이는 장기간 사용시, 목재가 썩거나 쉽게 훼손되어 노변에 식재된 가로수의 경우 미관이 좋지 않게 되고, 지지강도가 약하여 쉽게 부러짐으로 인해 강한 비바람으로부터 수목을 제대로 지지,보호하지 못하는 등의 문제점을 갖는 것이었을 뿐만 아니라, 특히 수목의 성장에 따라 나무 기둥의 직경이 변화될 경우, 이에 적절히 대응하지 못한체, 수시로 지지대를 그 변화된 수목의 성장 규격에 맞게 재 설치해야하는 만 하는 매우 비경제적이고, 비능률적인 구조상의 문제점을 상존되게 하는 것이었다. However, such a conventional tree support is a tree that is rotten or easily damaged due to long-term use, the tree planting on the roadside has a poor aesthetics, and the support strength is weak and easily broken to easily support and protect the tree from strong weather Not only did they have problems such as not being able to do this, but especially when the diameter of the wooden posts changed according to the growth of the trees, they did not respond properly, and the supporters had to be re-installed to meet the changed tree growth standards. It was to make structural problems inefficient and inefficient.

따라서, 본 발명은 종래 가로수 등의 수목에 적용되는 지지대의 제반적인 문제점을 해결하고자 창안된 것으로;Therefore, the present invention has been devised to solve the general problems of the support that is applied to trees such as conventional trees;

본 발명의 목적은 완충압착부재가 구비된 탄성 버팀대의 탄력적인 압착, 지지기능에 의해 수목(樹木) 성장에 따른 나무기둥의 직경 변화에 구애받음 없이, 그 지지 되는 부위의 설치폭을 가변적인 형태로 유지되게 함으로서, 불필요한 지지대의 반복적 교환 설치작업을 배제되도록 하고, 이와 같은 반복적 지지대 교환작업의 배제로서, 보다 경제적이고, 효율적 이용관계를 갖을 수 있도록 한 탄성 가변형 공원 수목 지지장치를 제공함에 있다.An object of the present invention is to change the installation width of the supported portion, without being affected by the diameter change of the wooden column due to the growth of the tree by the elastic crimping, support function of the elastic brace equipped with a buffer pressing member It is to provide a resilient variable park tree support device that can be avoided by unnecessary replacement of the repetitive exchange installation of the support, and to be able to have a more economical and efficient use relationship as the exclusion of such a repetitive support replacement.

이에, 상기 목적을 달성하기 위한 본 발명의 구체적 수단으로는;Thus, the specific means of the present invention for achieving the above object;

고정틀 외측면 둘레에 완충스프링이 내설된 탄성 유도실린더를 규칙적인 4방 향 돌출 분할구조로 배열, 결합시킨 설치프레임과;An installation frame in which an elastic induction cylinder in which a shock absorbing spring is installed is arranged around the outer side of the fixing frame in a regular four-way protrusion division structure;

상기 각 탄성 유도실린더에 결합되는 "L"자형의 절곡 구성으로, 그 절곡된 상부측에 완충압착부재를 일체로 결합시키고, 상기 절곡된 하부측 단부에 탄성지지편을 일체로 형성되게 한 탄성 버팀대와;The "L" shaped bending configuration coupled to each of the elastic induction cylinder, the elastic brace to integrally couple the buffer pressing member to the bent upper side, and to form the elastic support piece integrally to the bent lower side end Wow;

상기 4방향으로 돌출 분할된 탄성유도실린더를 고정, 결합시키기 위한 수단으로, 상부면 4방향에 규칙적인 분할 배열형태를 이루도록 실린더 고정부를 형성시킨 호울덮개를 더 구비되게 함으로서, 달성된다.Means for fixing and engaging the elastic induction cylinder protruding in the four directions, it is achieved by further comprising a hole cover formed in the cylinder fixing portion to form a regular divided arrangement in the upper surface four directions.

이하, 본 발명에 따른 탄성 가변형 공원 수목 지지장치의 바람직한 실시예 구성을 첨부도면에 의거하여 상세히 설명하기로 한다.Hereinafter, a preferred embodiment of the elastic variable park tree support apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 탄성 가변형 공원 수목 지지장치 부분 분해사시도이고, 도 2는 본 발명에 적용되는 호울덮개의 개략 사시도이며, 도 3은 본 발명에 따른 탄성 가변형 공원 수목 지지장치의 설치사용상태 단면도서, 그 일련의 구성을 살펴보면;1 is an exploded perspective view of a part of the elastic variable park tree support apparatus according to the present invention, Figure 2 is a schematic perspective view of the hollow cover applied to the present invention, Figure 3 is an installation and use state of the elastic variable park tree support apparatus according to the present invention In the cross-sectional view, looking at the series of configurations;

이는, 설치프레임(1)과, 탄성 버팀대(2) 그리고, 호울덮개(3)에 의해 구성된다. It is comprised by the installation frame 1, the elastic brace 2, and the hole cover 3. As shown in FIG.

이에, 먼저 상기 설치프레임(1)은 본 발명을 형성하기 위한 기초적 외관 골격구성으로서, 이와 같은 설치프레임(1)은 도 1로 도시된 바와 같이 원형 띠 구조를 취하는 고정틀(11)을 기본 구성으로 하여, 상기 고정틀(11) 외측면 둘레에 완충스프링(S)이 내설된 탄성 유도실린더(12)를 규칙적이고 반복적인 4방향 돌출분할 구조로 배열하고, 이와 같이 배열된 각 탄성 유도실린더(12)를 상기 고정틀(11)과 일체로 결합시켜 구성되게 함이 바람직하다. Thus, first, the installation frame (1) as a basic appearance skeleton configuration for forming the present invention, such an installation frame (1) as a basic configuration as a fixed frame 11 taking a circular band structure as shown in FIG. Thus, the elastic induction cylinder 12 in which the buffer spring S is built around the outer surface of the fixing frame 11 is arranged in a regular and repetitive four-way protrusion division structure, and each elastic induction cylinder 12 arranged as described above. It is preferable to be configured to be integrally combined with the fixing frame (11).

이때, 상기 탄성 유도실린더(12)는 그 내부로 내설된 탄성스프링(S)의 이상 또는 고장발생시 이를 선택적으로 분리 교환 가능하도록 한 구조를 취하는 것으로, 이에 이러한 탄성 유도실린더(12)는 그 일측면 단부에 도 1로 도시된 바와 같이 나사(P)체결관계에 위해 탈,부착 결합 되는 단속캡(121)을 더 구비하게 된다.At this time, the elastic induction cylinder 12 is to take a structure that can be selectively separated and exchanged in the event of an abnormality or failure of the elastic spring (S) in the internal, this elastic induction cylinder 12 is one side As shown in Figure 1 at the end is further provided with an intermittent cap 121 that is detached, attached to the screw (P) fastening relationship.

또한, 상기 탄성 버팀대(2)는 식재된 수목의 기둥을 안정적인 탄성 압착 구조로 지지되게 하는 지지수단으로서, 이에 이러한 탄성 버팀대(2)는 도 1 또는 도 3으로 도시된 바와 같이 "L"자형으로 절곡된 소정 굵기의 봉체 구성으로 하여, 그 절곡된 탄성 버팀대(2)의 상부측에 합성수지재(고무 등)로 이루어진 연질의 완충압착부재(21)를 일체로 결합 형성시키고, 상기 절곡된 탄성 버팀대(2)의 하부측 단부에 원판 형상을 취하는 탄성지지편(22)을 일체로 결합형성되게 함이 바람직하다.In addition, the elastic brace 2 is a support means for supporting the planted tree pillars in a stable elastic crimp structure, such that the elastic brace 2 is in the "L" shape as shown in FIG. In the bent configuration of the bent predetermined thickness, the flexible buffer pressing member 21 made of a synthetic resin material (rubber, etc.) integrally formed on the upper side of the bent elastic brace 2, the bent elastic brace It is preferable to integrally form an elastic support piece 22 having a disc shape at the lower end of (2).

이때, 전술한 바와 같은 구성으로 이루어진 탄성 버팀대(2)를 본 발명에 적용함에 있어서는, 그 완성된 구성물품(탄성 버팀대)을 4개 이상 구비되게 한다.At this time, in applying the elastic brace 2 composed of the above-described configuration to the present invention, it is to be provided with four or more of the finished component (elastic brace).

또한, 상기 호울덮개(3)는 식재된 수목의 지면부위가 빗물고임, 강풍, 혹은 인위적인 외력작용에 의해 파헤쳐 지거나 손상되는 것을 방지하기 위해 구성된 통상의 메쉬망 구성으로서, 이에 이와 같은 호울덮개(3)를 본 발명에 적용함에 있어서는, 도 2로 도시된 바와 같이 호울덮개(3)의 상부면 4방향(3방향 생략 도시)에 규칙적이고 반복적 분할 배열구조로서, 실린더 고정부(31)를 더 형성되게 하여 구성토록 함이 바람직하다.In addition, the hole cover (3) is a conventional mesh network configuration configured to prevent the ground portion of the planted tree is not dig or damaged by rain gall, strong wind, or artificial external force action, such a hole cover (3) In applying the present invention to the present invention, as shown in FIG. 2, the cylinder fixing part 31 is further formed as a regular and repetitive divided arrangement structure in four directions (not shown in three directions) of the upper surface of the hole cover 3. It is preferable to make it.

이때, 상기 실린더 고정부(31)는 축 결합수단으로 이용되는 통상의 커플링과 같은 체결원리로서 구성되는 것으로, 이를 좀더 구체적으로 살펴보면, 이는 호울덮개(3) 상부면에 요홈구조를 이루며 일체로 형성되는 안착요홈(311)과, 상기 안착요홈(311)과 대향되는 독립적 부품구성을 갖는 고정덮개(312)로 형성된다.(도면 미설명 부호 B는 볼트, N은 너트) At this time, the cylinder fixing portion 31 is configured as a fastening principle, such as a conventional coupling used as a shaft coupling means, Looking at this more specifically, it forms a groove structure on the upper surface of the hollow cover (3) integrally It is formed of a seating groove 311 is formed, and the fixing cover 312 having an independent component configuration opposed to the mounting groove 311. (not shown reference numeral B is a bolt, N is a nut)

따라서, 상기와 같은 구성을 갖는 본 발명에 따른 탄성 가변형 공원 수목 지지장치의 상호 결합관계를 살펴보면;Therefore, looking at the mutual coupling relationship of the elastic variable park tree support apparatus according to the present invention having the configuration as described above;

먼저, 설치프레임(1)의 고정틀(11) 외측면 사방향에 분할된 구조로 형성된 각 탄성 유도실린더(12)의 내측 일면을 통해 도 1 또는 도 3으로 도시된 바와 같이 "L"자형으로 절곡된 탄성 버팀대(2)의 하부측, 다시 말해, 탄성 버팀대(2)의 탄성지지편(22) 형성 부위를 피스톤식 삽입구조로 결합시키고;First, through the inner one surface of each of the elastic induction cylinder 12 formed in a structure divided in four directions of the outer side of the fixing frame 11 of the mounting frame 1, as shown in FIG. Engaging the lower side of the elastic brace 2, that is, the elastic support piece 22 forming portion of the elastic brace 2 with a piston type insertion structure;

이어, 상기 탄성 버팀대(2)가 삽입 결합된 탄성 유도실린더(12)의 외경을 도 1로 도시된 바와 같이, 호울덮개(3)의 각 안착요홈(311)에 안착시키며;Subsequently, as shown in FIG. 1, the outer diameter of the elastic guide cylinder 12 into which the elastic brace 2 is inserted and coupled is seated in each seating recess 311 of the hollow cover 3;

재차, 그 탄성 유도실린더(12)의 안착부위 상부면에 고정덮개(312)를 밀착시켜, 볼트(B)와 너트(N)결합에 의해 견고한 고정관계를 갖도록 함으로서, 본 발명에 따른 탄성 가변형 수목지지장치를 구현하게 된다.Again, by holding the fixing cover 312 in close contact with the upper surface of the seating portion of the elastic induction cylinder 12, to have a rigid fixed relationship by the bolt (B) and the nut (N) coupling, the elastic variable tree according to the present invention Implement the support device.

이에, 상기와 같은 일련의 결합관계에 의해 형성되는 본 고안에 따른 탄성 가변형 공원 수목 지지장치는, 도 3으로 도시된 바와 같이 탄성 버팀대(2)의 완충압착부재(21)에 의해 수목 기둥의 외경 사방면을 안정적으로 지지되게 하는 구조로 설치 이용 되는 것인바;Thus, the elastically variable park tree support device according to the present invention formed by a series of coupling relationships as described above, the outer diameter of the tree column by the buffer pressing member 21 of the elastic brace 2, as shown in FIG. It will be used to install the structure to ensure stable support on all four sides;

이에, 이와 같은 사용관계를 갖음에 있어, 상기 탄성 버팀대(2)는 연질의 합성수재재로 이루어진 완충압착부재(21)의 재질특성에 따라 수목 기둥표면에 별도의 손상을 주지않고 안정적인 밀착기능을 행하게 되는 것이며, 특히 수목의 성장에 따라 그 기둥의 두께가 가변적인 형태로 변형(굵어짐 현상)될 경우에 있어서는, 탄성 유도실린더(12)에 피스톤식 삽입구조로 결합된 탄성 버팀대(2)가 탄성스프링(S)과 연계된 상태로서, 탄력적인 신축작용을 행하게 되므로, 기존 불필요한 수목지지대의 재설치 작업을 배제되게 하는 기능을 행하게 된다.  Thus, in such a use relationship, the elastic brace (2) according to the material characteristics of the buffer pressing member 21 made of a soft synthetic resin material does not damage the surface of the wooden pillars without any additional damage to the stable contact function In particular, in the case where the thickness of the column is deformed (bolding phenomenon) in accordance with the growth of the tree, the elastic brace 2 coupled to the elastic induction cylinder 12 by a piston type insertion structure is provided. As a state associated with the elastic spring (S), because the elastic expansion and contraction is performed, it is to function to eliminate the unnecessary reinstallation of the existing unnecessary tree support.

이상, 본 발명에 따른 탄성 가변형 공원 수목 지지장치는 완충압착부재가 구비된 탄성버팀대의 탄력적인 압착, 지지기능에 의해 수목(樹木) 성장에 따른 나무기둥의 직경 변화에 구애받음 없이, 그 지지 되는 부위의 설치폭을 가변적인 형태로 유지되게 한 것으로서, 이는 종래 불필요한 지지대의 반복적 교환 설치작업을 배제되도록 하여, 보다 경제적이고, 효율적 이용관계를 갖도록 한 것으로, 매우 유용한 기대효과를 제공한다.Above, the elastically variable park tree support apparatus according to the present invention is supported by the elastic crimping and support function of the elastic brace provided with a cushioning crimping member, regardless of the change in the diameter of the tree column according to the growth of the tree As the installation width of the site is maintained in a variable form, it is possible to eliminate the unnecessary replacement work of the conventional support, and to have a more economical and efficient use relationship, which provides a very useful expected effect.

Claims (2)

고정틀(11) 외측면 둘레에 완충스프링(S)이 내설된 탄성 유도실린더(12)를 규칙적인 4방향 돌출 분할구조로 배열하여 결합시킨 설치프레임(1)과;An installation frame (1) in which an elastic induction cylinder (12) in which a buffer spring (S) is built around an outer surface of the fixing frame (11) is arranged in a regular four-way protruding division structure and coupled; 상기 4방향으로 분할된 각 탄성 유도실린더(12)에 피스톤식 삽입구조로 결합되는 "L"자형의 절곡 구성으로, 그 절곡된 상부측에 완충압착부재(21)를 일체로 결합하고, 상기 절곡된 하부측 단부에 탄성지지편(22)을 일체로 형성한 탄성 버팀대(2)와;The "L" shaped bending configuration coupled to each of the elastic induction cylinder 12 divided in the four directions by a piston-type insertion structure, integrally coupling the buffer pressing member 21 to the bent upper side, the bending An elastic brace 2 formed integrally with the elastic support piece 22 at the lower end; 상기 4방향으로 돌출 분할된 탄성 유도실린더(12)를 고정, 결합시키기 위한 수단으로, 호울덮개(3)를 더 구비토록 하되, 상기 호울덮개(3)는 그 상부면 4방향에 규칙적인 분할 배열구성으로, 안착요홈(311)과 고정덮개(312)로 이루어진 실린더 고정부(31)를 구비하게 됨을 특징으로 하는 탄성 가변형 공원 수목 지지장치.As a means for fixing and engaging the elastic induction cylinder 12, which is projected and divided in the four directions, further comprises a hole cover (3), the hole cover (3) is divided regularly arranged in the four directions of the upper surface In the configuration, the elastic variable park tree support device characterized in that it comprises a cylinder fixing portion 31 consisting of a seating recess 311 and the fixing cover 312. 제 1항에 있어서;The method of claim 1; 상기 탄성 유도실린더(12)는 그 일측면 단부에 나사(P) 체결관계에 위해 탈,부착 결합 되는 단속캡(121)이 더 구비됨을 특징으로 하는 탄성 가변형 공원 수목 지지장치The elastic induction cylinder 12 is elastically variable park tree support device, characterized in that the one side end is further provided with an intermittent cap 121 to be detached, attached to the screw (P) fastening relationship
KR1020060100319A 2006-10-16 2006-10-16 Elasticity variable model park tree support device KR100657975B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100804575B1 (en) 2007-09-05 2008-02-20 (주)다산컨설턴트 Street tree protection block for road in pro-environment
KR102246082B1 (en) 2020-12-17 2021-04-29 한영근 Apparatus and system for managing tree

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100804575B1 (en) 2007-09-05 2008-02-20 (주)다산컨설턴트 Street tree protection block for road in pro-environment
KR102246082B1 (en) 2020-12-17 2021-04-29 한영근 Apparatus and system for managing tree

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