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KR-102961587-B1 - Vibration Dampener

KR102961587B1KR 102961587 B1KR102961587 B1KR 102961587B1KR-102961587-B1

Abstract

The present invention provides a vibration damping device having a simple structure that facilitates easy assembly, disassembly, and replacement of internal parts, and easy connection with various equipment; efficiently dampens vibrations applied vertically downward from a supported object placed above, reduces noise, suppresses oscillation in the horizontal plane to the maximum extent, prevents external foreign matter from entering and jamming into the vibration-damping elastic spring, and improves aesthetics by ensuring the elastic spring is not visible from the outside. To this end, the vibration damping device of the present invention comprises: a lower boss member having a base member placed on the ground, a neck portion extending vertically upward from the base member, and a spring support portion formed at the top of the neck portion in the shape of a concave groove open upward or a flat surface spring support portion for supporting and seating the lower end of an elastic spring; and an upper boss member having an inner space open toward the bottom, which accommodates and connects to the outer circumference of the upper spring support portion of the lower boss member. The invention is characterized by comprising: an elastic spring that is received in the inner space of the upper boss member and applies elastic force in a direction that pushes the upper boss member upward toward the lower boss member; a female screw portion formed on the inner diameter surface of the lower end of the upper boss member; a male screw portion that is screw-fastened to the female screw portion, and has a position that is supported by being in close contact with a stepped portion on the bottom surface of the spring seating portion that supports the elastic spring, and is installed to receive the neck portion of the lower boss member and slide vertically through the neck portion; and at least one anti-rotation groove that receives the end of a pointed tool, including a pin, nail, or ballpoint pen refill, approaching from the outside on the lower surface of the screw fastening member when rotated in a loosening direction to release the screw fastening state for disassembly of the upper boss member, thereby preventing rotation of the screw fastening member and fixing its position.

Inventors

  • 김응찬

Dates

Publication Date
20260508
Application Date
20250904

Claims (6)

  1. A lower boss member (14a) composed of a base member (12a) in the shape of a disc flange placed on the ground, and a neck portion (24a) that forms a single body with the base member (12a) and extends vertically upward; A female screw hole (72) formed to a predetermined depth and opened upward along the central axis line on the upper part of the above neck portion (24a); A spring support portion (28a) that is a body separated from the above neck portion (24a), formed in the shape of a concave groove open upward at the top of the neck portion (24a) or formed as a flat surface spring support portion to support and accommodate the lower end of an elastic spring; A male screw member (74) integrally formed to protrude from the lower part of the spring mounting portion (28a) and screwed into the female screw hole (72); A cylindrical upper boss member (16) with a closed top that accommodates and connects to the outer circumference of the spring mounting portion (28a) and has an inner space open toward the bottom; An elastic spring (18) that is accommodated in the inner space of the upper boss member (16) and applies elastic force in a direction that pushes the upper boss member (16) upward toward the spring seating portion (28a); A female screw portion (44) formed on the inner diameter surface (42) of the lower portion of the upper boss member (16); A screw fastening member (46) having a male screw portion (48) that is screw-fastened to the female screw portion (44), having a position that is in close contact with and supported by a stepped portion (26) on the bottom surface of the spring seating portion (28a) that supports the elastic spring (18), and installed to accommodate the neck portion (24a) of the lower boss member (14a) so that it can slide up and down through the neck portion (24a); and By comprising at least one anti-rotation groove (52) that receives the end of a pointed tool, including a pin, nail, or ballpoint pen refill, approaching from the outside on the lower surface of the screw fastening member (46) when rotating in a loosening direction to release the screw fastening state for disassembly of the upper boss member (16), thereby preventing rotation of the screw fastening member (46) and fixing its position, A vibration damper (10a) characterized by first fitting the screw fastening member (46) into the neck portion (24a) and placing it on the base member (12a), then assembling the spring seating portion (28a) to the neck portion (24a), and subsequently assembling the upper boss member (16) by screwing it onto the screw fastening member (46) while the elastic spring (18) is positioned on the spring seating portion (28a).
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  3. In paragraph 1, A dustproof member (10a) characterized by having a female screw hole (56)(58) formed along the central axis of the upper boss member (16) or the lower boss member (14a) through which a bolt connection member (54) can be screw-fastened.
  4. In paragraph 3, A vibration damper (10a) characterized by having a shock-absorbing pad (60)(62) attached to the upper surface of the upper boss member (16) or the lower surface of the base member (12a), the pad having a central through hole (64)(66) sized to allow the passage of the bolt connection member (54).
  5. In paragraph 1, The above anti-rotation groove (52) is characterized by being a recessed groove from the surface of the screw fastening member (46) to accommodate the end of a tool approaching from the outside so as to fix the screw fastening member (46) so as not to rotate, or a through hole penetrating the body of the screw fastening member (46) vertically.
  6. In paragraph 1, The above elastic spring (18) is characterized as being a conical coil spring that is wider at the top and narrower at the bottom or wider at the bottom and narrower at the top, or a parallel (cylindrical) coil spring with the same upper and lower coil diameter, and is a vibration damper (10a).

Description

Vibration Dampener The present invention relates to a vibration damping device that absorbs and dampens vibration noise of devices and mechanisms, and more specifically, to a vibration damping device that has a simple structure, making it easy to assemble, disassemble, and replace internal parts, and easy to connect with various equipment, and in particular, efficiently blocks vibrations generated from the ground from being transmitted to an object placed on top of the vibration damping device or, conversely, vibrations generated from the object from being transmitted to the ground, thereby preventing damage and deformation of parts and enabling efficient response to various vibrations and noises. Generally, vibration damping devices are equipped with vibration damping means and are widely used to dampen external vibrations and noise to prevent the degradation of the equipment's inherent functions due to the influence of external vibrations, particularly when installing equipment that generates significant vibration, such as presses, crushers, generators, high-speed stamping machines, compressors, and inspection equipment, as well as when using equipment vulnerable to vibration, such as precision measuring equipment or semiconductor manufacturing equipment, and acoustic devices sensitive to vibration. These vibration dampeners are installed on the floor where the equipment is mounted to prevent problems such as reduced machining precision and equipment damage caused by vibration, as well as to prevent noise generation caused by vibration; they are used to dampen equipment vibrations while preventing the transmission of vibration and noise to the floor (vibration damping). In this case, the vibration dampener is constructed using a damping material that has the property of absorbing vibrations well; in order to be effectively used in devices with various static displacements, springs and rubber elastic materials are commonly used as the damping material. A vibration dampener commonly used in the market is largely composed of a coil-shaped elastic spring, an upper body coupled to the upper end of the elastic spring on which an object is placed, and a lower body coupled to the lower end of the elastic spring on which it contacts the floor. An example of such a vibration damping device is the lightweight mount for vibration damping disclosed in Korean Registered Patent Publication No. 10-2261515 (Patent Document 1). FIGS. 1 and 2 illustrate a lightweight mount for vibration damping according to Patent Document 1. The lightweight mount for vibration damping (100) comprises a lower body (110) formed such that a lower boss portion (112) of a certain height is formed on the upper side of a lower mounting portion (111) that is placed on the ground, having an upwardly open lower space portion (1121) inside, a lower spring mounting groove (1111) is formed on the upper surface of the lower mounting portion (111) located within the lower space portion (1121), and at least two locking projections (113) are formed on the outer surface of the lower boss portion (112), each having a downwardly inclined inclined portion (1131) and a horizontal portion (1132) extending inward from the inclined portion (1131). An upper body (120) is formed such that, on the lower side of the upper mounting portion (121) on which the object is placed, an upper boss portion (122) of a certain height is formed having a downwardly open upper space portion (1221) into which the lower boss portion (112) is inserted, an upper spring mounting groove (1211) is formed on the bottom surface of the upper mounting portion (121) located within the upper space portion (1221), and a guide hole (123) is formed on the outer surface of the upper boss portion (122) to be coupled so that a locking projection (113) of the lower body (110) is fitted therein; The upper portion is fitted into the upper spring mounting groove (1211) of the upper body (120), and the lower portion is fitted into the lower spring mounting groove (1111) of the lower body (110), thereby including an elastic spring (130) that elastically supports the gap between the upper body (120) and the lower body (110); and the guide hole (123) of the upper body (120) is characterized by being configured in a shape that is wider at the top and narrower at the bottom. It is stated that the aforementioned lightweight vibration-damping mount has a simple structure, making it easy to assemble, disassemble, and replace internal parts, and is easy to connect with various equipment to respond to various loads. In particular, it effectively blocks vibrations generated from the ground from being transmitted to an object placed on top of the lightweight vibration-damping mount, thereby preventing damage and deformation of parts and enabling it to respond to various vibrations. However, as each component constituting a lightweight vibration damping mount such as that of Patent Document 1 is exposed to repetitive v