KR20230130986A - All screw type bolt - Google Patents
All screw type bolt Download PDFInfo
- Publication number
- KR20230130986A KR20230130986A KR1020220028257A KR20220028257A KR20230130986A KR 20230130986 A KR20230130986 A KR 20230130986A KR 1020220028257 A KR1020220028257 A KR 1020220028257A KR 20220028257 A KR20220028257 A KR 20220028257A KR 20230130986 A KR20230130986 A KR 20230130986A
- Authority
- KR
- South Korea
- Prior art keywords
- threaded rod
- bolt
- core material
- reinforcing core
- cutting
- Prior art date
Links
- 239000011162 core material Substances 0.000 claims abstract description 23
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 18
- 239000000057 synthetic resin Substances 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 238000011900 installation process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/44—Making machine elements bolts, studs, or the like
- B21K1/54—Making machine elements bolts, studs, or the like with grooves or notches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/14—Cap nuts; Nut caps or bolt caps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
본 발명 전산볼트는 나사봉 내부에 길이방향으로 심재를 삽입하여 내구성이 향상되어 견고하게 물체를 매달 수 있도록 설치하고, 설치 후에는 나사봉이 부식되는 것을 방지하며, 나사봉의 재질은 합성수지재질로 형성되어 있어 사출방식으로 제조하여 생산성 향상으로 제조단가를 낮출 수 있는 전산볼트 제조방법 및 전산볼트에 관한 것이다. The computer bolt of the present invention is installed to improve durability by inserting a core material in the longitudinal direction inside the threaded rod so that objects can be hung firmly. After installation, the threaded rod is prevented from corroding, and the material of the threaded rod is made of synthetic resin. This relates to a method of manufacturing a computerized bolt and a computerized bolt that can be manufactured using the injection method to reduce manufacturing costs by improving productivity.
일반적으로 그 용도에 따라 머리부 없이 볼트 전체에 나사산이 형성되어 있는 볼트가 있는데, 이를 전산볼트라하며, 콘크리트 천장의 앙카볼트에 삽입되어 물체를 매달기 위해 사용된다.In general, depending on the purpose, there are bolts with threads formed throughout the bolt without a head. These are called full-length bolts, and are inserted into anchor bolts of concrete ceilings and used to hang objects.
전산볼트는 이를 사용함에 있어, 콘크리트 슬라브의 적정한 위치에 앙카를 박아넣고 여기에 일정길이가 유지되게 전산볼트의 일단을 체결한 상태에서 각종 물체를 매달아 설치한 다음 노출된 전산볼트의 타단에는 너트를 체결하여 설치된 물체가 고정되게 하는 것이다.When using a computerized bolt, an anchor is driven into an appropriate position on a concrete slab, one end of the computerized bolt is fastened to this to maintain a certain length, various objects are hung, and a nut is placed on the other end of the exposed computerized bolt. It is fastened to ensure that the installed object is fixed.
이와 같은 전산볼트는 공조시설이나 배기/급기시설, 시스템 에어컨에서 천장형 실내기를 설치하는 경우, 전기공사 현장에서의 트레이(tray) 작업이나, 레이스웨이(raceway) 작업, 건물 완공후 텍스와 같은 천정 마감재시공, 천장 스프링클러에 용수를 공급하는 파이프 설치등에 사용된다.These computer bolts are used in air conditioning facilities, exhaust/supply facilities, and when installing ceiling-type indoor units in system air conditioners, tray work at electrical construction sites, raceway work, and ceilings such as Tex after building completion. It is used for construction of finishing materials and installation of pipes that supply water to ceiling sprinklers.
이렇게 실내의 천정에 각종 물체를 설치 고정하기 위한 전산볼트는 예전부터 널리 사용되고 있다,In this way, electric bolts have been widely used since ancient times to install and secure various objects on indoor ceilings.
그러나 이제까지의 전산볼트는 환봉의 외주면에 한줄의 나사산이 나선형으로 가공된 한줄나사산으로 구성되었던것이며, 이는 안정된 체결력 유지와 인장강도 및 전단강도 유지를 위해 나사산을 통상적으로 형성하고 있다.However, all bolts so far have been composed of a single thread thread machined into a spiral shape on the outer peripheral surface of a round bar, and the threads are usually formed to maintain a stable fastening force and maintain tensile and shear strengths.
또한, 종래의 전산볼트는 금속재질로 제조하기 때문에 설치 후 외부에 노출되어있어 외부 환경에 의해 쉽게 부식되어 미관상 불쾌감 및 안정상 문제점을 유발하는 문제점이 있다.In addition, since conventional computer bolts are made of metal, they are exposed to the outside after installation and are easily corroded by the external environment, causing aesthetic discomfort and stability problems.
또한, 종래의 전산볼트는 금속재질로 이루어져 있어 제조비용이 상승하고, 현장에서 작업자가 길이를 절단하는 과정에서 많은 힘이 소요되어 작업공정이 번거로움 문제점이 있다. In addition, conventional bolts are made of metal, which increases manufacturing costs, and requires a lot of force for workers to cut the length in the field, making the work process cumbersome.
상기와 같은 문제점을 해결하기 위하여 본 발명 전산볼트는 부식을 방지하기위하여 합성수지재를 사용하고, 사출방식으로 제조하여 생산성 향상 및 제조단가를 낮추는 것을 목적으로 한다. In order to solve the above problems, the computer bolt of the present invention uses a synthetic resin material to prevent corrosion and is manufactured using an injection method to improve productivity and reduce manufacturing costs.
상기 과제의 해결수단으로 본 발명 전산볼트는 표면에 나사산이 형성된 합성수지재질의 나사봉과, 상기 나사봉의 중앙에는 길이방향으로 삽입된 보강 심재와, 상기 나사봉의 상부에는 앵커 볼트와 하부에는 마감 너트가 결합된 것을 특징으로 하는 전산볼트를 제공한다.As a means of solving the above problem, the computer bolt of the present invention includes a threaded rod made of synthetic resin with a thread formed on the surface, a reinforcing core material inserted in the longitudinal direction in the center of the threaded rod, an anchor bolt at the top of the threaded rod, and a finishing nut at the bottom. Provides a computerized bolt characterized in that:
이상에서 설명한 바와 같이 본 발명 전산볼트 제조방법 및 전산볼트는 합성수지재질의 나사봉과 상기 나사봉의 내구성을 향상시키기위해 내부에 금속재질의 보강 심재를 삽입하여 내구성을 향상시키고, 사출에 의해 제조함으로 인해 생산성 향상 및 제조단가를 낮출 수 있는 효과가 있다.As described above, the method of manufacturing the computer bolt of the present invention and the computer bolt of the present invention improve durability by inserting a reinforcing core material of a metal material inside to improve the durability of the threaded rod and the threaded rod made of synthetic resin, and improve productivity by manufacturing it by injection. It has the effect of improving performance and lowering manufacturing costs.
또한, 본 발명은 나사봉 자체가 합성수지 재질임으로 인해 설치후 부식되는 것을 방지하는 효과가 있다. In addition, the present invention has the effect of preventing corrosion after installation because the threaded rod itself is made of synthetic resin.
또한, 본 발명은 보강 심재에 길이방향을 따라 일정간격으로 V커팅이 교호되게 배열되어 나사봉의 길이를 용이하게 절단할 수 있는 효과가 있다.In addition, the present invention has the effect of easily cutting the length of the threaded rod by arranging V cuts alternately at regular intervals along the longitudinal direction of the reinforcing core material.
또한, 본 발명은 나사봉의 표면에 외부관이 결합되고, 외부관에는 길이방향으로 절단홈이 형성되어 동일한 길이로 절단할 수 있는 효과가 있다. In addition, in the present invention, an external tube is coupled to the surface of the threaded rod, and a cutting groove is formed in the longitudinal direction of the external tube, so that it can be cut to the same length.
도 1은 본 발명 전산볼트를 도시해 보인 분리 사시도.
도 2는 본 발명 전산볼트를 도시해 보인 결합 사시도.
도 3은 본 발명 전산볼트를 도시해 보인 결합 단면도.
도 4는 본 발명 전산볼트의 다른 실시예를 도시해 보인 사시도.Figure 1 is an exploded perspective view showing the computer bolt of the present invention.
Figure 2 is a combined perspective view showing the computer bolt of the present invention.
Figure 3 is a combined cross-sectional view showing the computer bolt of the present invention.
Figure 4 is a perspective view showing another embodiment of the computer bolt of the present invention.
상기와 같은 목적 및 효과를 달성하기 위하여 본 발명은 이하 첨부된 도면에 의해 상세히 설명하면 다음과 같다. In order to achieve the above objectives and effects, the present invention will be described in detail with the accompanying drawings as follows.
도 1은 본 발명 전산볼트를 도시해 보인 분리 사시도이고, 도 2는 본 발명 전산볼트를 도시해 보인 결합 사시도이며, 도 3은 본 발명 전산볼트를 도시해 보인 결합 단면도이다.Figure 1 is an separated perspective view showing the computer bolt of the present invention, Figure 2 is a combined perspective view showing the computer bolt of the present invention, and Figure 3 is a combined cross-sectional view showing the computer bolt of the present invention.
본 발명 전산볼트(1)는 공조시설, 배기/급기시설, 시스템 에어컨에서 천장형 실내기를 설치하는 경우, 전기공사 현장에서의 트레이(tray) 작업, 레이스웨이(raceway) 작업, 건물 완공후 텍스와 같은 천정 마감재시공, 천장 스프링클러에 용수를 공급하는 파이프 등에 설치한다.The computer bolt (1) of the present invention is used when installing a ceiling-type indoor unit in an air conditioning facility, exhaust/air supply facility, or system air conditioner, tray work at an electrical construction site, raceway work, and Tex after building completion. It is installed on the same ceiling finishing materials, pipes that supply water to ceiling sprinklers, etc.
상기 전산볼트(1)는 나사봉을 사출금형방식으로 생산하고, 부식되는 것을 방지하기 위해 합성수지 재질로 제조한다.The electric bolt (1) is produced using a screw rod injection mold method and is made of synthetic resin material to prevent corrosion.
본 발명 전산볼트(1)를 제조하기 위해서 길이방향을 따라 일정간격으로 V커팅홈을 좌우측 방향으로 교호되게 배열하여 절단선(5)을 표시한 금속재질의 보강 심재(3)를 준비하는 단계를 진행한다.In order to manufacture the computer bolt (1) of the present invention, the step of preparing a reinforcing core material (3) made of metal with cutting lines (5) indicated by alternating V cutting grooves in the left and right directions at regular intervals along the longitudinal direction. Proceed.
상기 사출금형 내부에 보강 심재(3)를 안착한다.The reinforcing core material (3) is seated inside the injection mold.
상기 사출금형 내부에 합성수지액을 주입하여 내부에 보강 심재(3)가 삽입되고, 표면에 나사산이 형성되도록 나사봉(2)을 성형한다.The synthetic resin solution is injected into the injection mold, the reinforcing core material 3 is inserted therein, and the threaded rod 2 is formed so that a thread is formed on the surface.
상기와 같이 사출금형방식으로 나사봉(2)을 제조하면 나사봉(2) 내부에 보강심재(3)가 삽입되어 일체로 형성된다.When the threaded rod (2) is manufactured using the injection mold method as described above, the reinforcing core material (3) is inserted into the threaded rod (2) to form a single piece.
즉, 전산볼트(1)는 표면에 나사산이 형성된 합성수지재질의 나사봉(2)과, 상기 나사봉(2)의 중앙에는 길이방향으로 삽입된 보강 심재(3)와, 상기 나사봉(2)의 상부에는 앵커 볼트(4)와 하부에는 마감 너트(6)가 결합된다.That is, the electric bolt (1) includes a threaded rod (2) made of synthetic resin with a thread formed on the surface, a reinforcing core material (3) inserted in the longitudinal direction in the center of the threaded rod (2), and the threaded rod (2). An anchor bolt (4) is coupled to the upper part and a finishing nut (6) is coupled to the lower part.
상기 나사봉(2)은 표면에 나사산이 형성되어 있어, 상부에는 앵커 볼트(4)와 하부에는 마감 너트(6)를 조임 결합한다.The threaded rod (2) has a thread formed on its surface, and an anchor bolt (4) is fastened to the upper part and a finishing nut (6) to the lower part.
상기 나사봉(2)은 합성수지 재질이기 때문에 설치 후 부식되는 것을 방지하고, 충격에 파손되는 것을 방지하기 위해 내부에는 금속재질의 보강 심재(3)를 삽입하여 내구성을 향상시킨다. Since the threaded rod (2) is made of synthetic resin, it prevents corrosion after installation, and a reinforcing core material (3) made of metal is inserted inside to prevent damage from impact to improve durability.
상기 보강 심재(3)는 외부에서 가해지는 충격 등에 나사봉(2)이 파손되어도 절단되지않게 인장력을 보강하는 기능을 갖는다.The reinforcing core material 3 has a function of reinforcing tensile force to prevent the threaded rod 2 from being cut even if it is damaged by an external impact, etc.
또한, 본 발명 전산볼트(1)는 설치시 현장 상황에 맞게 길이 조절을 용이하게 금속재질의 보강 심재(3)를 절단할 수 있도록 길이방향을 따라 절단선(5)이 형성된다.In addition, the computer bolt (1) of the present invention has a cutting line (5) formed along its length so that the reinforcing core material (3) made of metal can be easily cut to adjust the length to suit field conditions during installation.
상기 보강 심재(3)에 형성된 절단선(5)은 길이방향을 따라 일정간격으로 V커팅홈이 좌측 우측에 교호되게 배열된다.The cutting line 5 formed on the reinforcing core material 3 has V cutting grooves alternately arranged on the left and right at regular intervals along the longitudinal direction.
상기 절단선(5)의 V커팅홈이 한쪽방향으로만 형성되면 V커팅홈이 형성된 한쪽 면만 두께가 얇아져 내구성이 저하되는 문제점을 해소하기 위하여 길이방향을 따라 좌우 방향으로 교호되게 절단선(5)을 형성한다.In order to solve the problem that when the V cutting groove of the cutting line (5) is formed in only one direction, the thickness of only one side on which the V cutting groove is formed becomes thin and durability is reduced, the cutting lines (5) are alternated in the left and right directions along the longitudinal direction. forms.
또한, 도면에 미도시 하였으나, 나사봉(2)의 표면에 절단선(5)을 나타내는 눈금선을 표시하여 눈금선을 육안으로 확인하고 절단선 부위를 절단하면 보강 심재(3)의 절단부위에 V커팅홈이 형성되어 있어 쉽게 절단할 수 있다.In addition, although not shown in the drawing, a grid line indicating the cutting line (5) is marked on the surface of the threaded rod (2), the graduation line is visually checked, and when the cutting line area is cut, the cut area of the reinforcing core material (3) is cut. V-cutting grooves are formed for easy cutting.
또한, V커팅홈은 보강 심재의 표면으로 합성수지 재질의 나사봉이 결합되었을때 V커팅홈 합성수지가 삽입되어 맞물린 상태를 유지하여 임의로분리되는 것을 방지하는 구조이다. In addition, the V-cutting groove is a structure that prevents arbitrary separation by inserting and maintaining the engaged state when a threaded rod made of synthetic resin is connected to the surface of the reinforcing core material.
또한, 본 발명의 다른 실시예로 V커팅홈에 색상을 도색한 다음 나사봉(2)에 삽입하면, 나사봉(2)의 표면에서 V커팅홈에 도색된 절단선(5)이 다른 부위와 다르게 짙은색이 형성되어 육안으로 식별이 가능하여 절단선(5)을 통해 절단을 용이하게 할 수 있다.In addition, in another embodiment of the present invention, when the V cutting groove is painted in color and then inserted into the threaded rod (2), the cutting line (5) painted in the V cutting groove is different from other parts on the surface of the threaded rod (2). Differently, the dark color is formed so that it can be identified with the naked eye, making it easy to cut through the cutting line (5).
상기 나사봉(2)은 합성수지재질로 안료를 혼합하여 성형할 때 흰색계열에 가까운 안료를 혼합하여 성형함으로 인해 V커팅홈에 도색을 하는 경우 짙은색이 표시되어 절단선(5)을 유안으로 확인 가능하다. The threaded rod (2) is made of synthetic resin and is molded by mixing pigments close to white. Therefore, when painting the V cutting groove, a dark color is displayed, so the cutting line (5) is checked with the eye. possible.
도 4는 본 발명 전산볼트의 다른 실시예를 도시해 보인 사시도로서, 상기 나사봉(2)의 표면에 합성수지 재질의 외부관(7)이 결합되고, 상기 외부관(7)에는 길이방향을 따라 V커팅홈으로 형성된 절단선(5)을 표시한다.Figure 4 is a perspective view showing another embodiment of the computer bolt of the present invention, in which an external tube 7 made of synthetic resin is coupled to the surface of the threaded rod 2, and the external tube 7 has a longitudinal axis along the longitudinal direction. Mark the cutting line (5) formed by the V cutting groove.
또한, 외부관(7)에 절단선(5)이 형성되어 있어 절단선(5) 부위를 절단하면 설치과정에서 용이하게 길이를 조절할 수 있어 작업자에게 편리성을 제공한다. In addition, since a cutting line (5) is formed on the outer pipe (7), the length can be easily adjusted during the installation process by cutting the cutting line (5), providing convenience to the operator.
상기 나사봉(2)에 합성수지재질의 외부관(7)이 결합되어 상부와 하부에만 나사산이 형성되게 돌출됨으로 인해 상부에는 앵커 볼트(4)와 하부에는 마감 너트(6)를 조임 결합할 수 있어 나사봉(2)이 부식되는 것을 방지하고 내구성을 향상시키는 효과가 있다.The outer pipe (7) made of synthetic resin is coupled to the threaded rod (2) and protrudes to form threads only at the top and bottom, so that the anchor bolt (4) at the top and the finishing nut (6) at the bottom can be tightened and combined. It has the effect of preventing corrosion of the threaded rod (2) and improving durability.
또한, 다른 실시예로 금속재질의 나사봉(2) 표면에 합성수지 재질의 외부관(7)을 일체로 결합함으로 인해 나사봉(2)을 설치한 후 외부환경의 영향으로 부식되는 것을 방지하는 효과가 있다. In addition, in another embodiment, the external tube 7 made of synthetic resin is integrally combined with the surface of the threaded rod 2 made of metal, thereby preventing corrosion due to the influence of the external environment after installing the threaded rod 2. There is.
1: 전산볼트 2: 나사봉
3: 보강 심재 4: 앵커 볼트
5: 절단선 6: 마감 너트
7: 외부관 1: Computer bolt 2: Threaded rod
3: Reinforcing core material 4: Anchor bolt
5: Cut line 6: Finishing nut
7: External pipe
Claims (5)
길이방향을 따라 일정간격으로 V커팅홈을 교호되게 배열하여 절단선(5)을 표시한 금속재질의 보강 심재(3)를 준비하는 단계; 와
사출금형 내부에 보강 심재(3)를 안착하는 단계; 와
상기 사출금형 내부에 합성수지액을 주입하여 내부에 보강 심재(3)가 삽입되고, 표면에 나사산이 형성되도록 나사봉(2)을 성형하는 단계로 이루어진 것을 특징으로 하는 전산볼트 제조방법.
In the method of manufacturing an electric bolt in which an anchor bolt at the top and a finishing nut are combined at the bottom,
Preparing a reinforcing core material (3) made of metal with cutting lines (5) indicated by alternating V cutting grooves at regular intervals along the longitudinal direction; and
Seating the reinforcing core material (3) inside the injection mold; and
A method of manufacturing an electric bolt, characterized in that it consists of the step of injecting a synthetic resin solution into the injection mold, inserting a reinforcing core material (3) therein, and molding the threaded rod (2) so that a thread is formed on the surface.
표면에 나사산이 형성된 합성수지재질의 나사봉(2)과, 상기 나사봉(2)의 중앙에는 길이방향으로 삽입된 보강 심재(3)와, 상기 나사봉(2)의 상부에는 앵커 볼트(4)와 하부에는 마감 너트(6)가 결합된 것을 특징으로 하는 전산볼트.
In computer bolt,
A threaded rod (2) made of synthetic resin with a thread formed on the surface, a reinforcing core material (3) inserted in the longitudinal direction in the center of the threaded rod (2), and an anchor bolt (4) at the top of the threaded rod (2). An electric bolt characterized in that a finishing nut (6) is coupled to the lower part.
According to claim 2, wherein the reinforcing core material (3) has V-cut grooves arranged alternately at regular intervals along the length to form a cutting line (5), and the V-cut grooves are such that the threaded rod is firmly coupled to the reinforcing core material. A computer bolt characterized in that it maintains its current state.
The computer bolt according to claim 3, wherein the V cutting groove is painted in color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020220028257A KR20230130986A (en) | 2022-03-04 | 2022-03-04 | All screw type bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020220028257A KR20230130986A (en) | 2022-03-04 | 2022-03-04 | All screw type bolt |
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| Publication Number | Publication Date |
|---|---|
| KR20230130986A true KR20230130986A (en) | 2023-09-12 |
Family
ID=88019763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020220028257A KR20230130986A (en) | 2022-03-04 | 2022-03-04 | All screw type bolt |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20230130986A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040108213A (en) | 2003-06-17 | 2004-12-23 | 민정기 | Symbol timing regeneration device for receiver |
-
2022
- 2022-03-04 KR KR1020220028257A patent/KR20230130986A/en not_active Application Discontinuation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040108213A (en) | 2003-06-17 | 2004-12-23 | 민정기 | Symbol timing regeneration device for receiver |
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