KR101615115B1 - Pem nut - Google Patents

Pem nut Download PDF

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Publication number
KR101615115B1
KR101615115B1 KR1020150176475A KR20150176475A KR101615115B1 KR 101615115 B1 KR101615115 B1 KR 101615115B1 KR 1020150176475 A KR1020150176475 A KR 1020150176475A KR 20150176475 A KR20150176475 A KR 20150176475A KR 101615115 B1 KR101615115 B1 KR 101615115B1
Authority
KR
South Korea
Prior art keywords
fastening
plate
flange portion
pam
receiving portion
Prior art date
Application number
KR1020150176475A
Other languages
Korean (ko)
Inventor
정광열
Original Assignee
주식회사 성진정밀
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 성진정밀 filed Critical 주식회사 성진정밀
Priority to KR1020150176475A priority Critical patent/KR101615115B1/en
Application granted granted Critical
Publication of KR101615115B1 publication Critical patent/KR101615115B1/en

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Classifications

    • 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
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/041—Releasable devices
    • F16B37/042—Releasable devices locking by rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • 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
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0023—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially cross-shaped
    • 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
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

As for the Pam nuts,
A columnar support portion having a component fastening hole formed with a female screw at an upper center thereof; A ring-shaped flange portion provided on the lower outer periphery of the receiving portion and integrally formed with the receiving portion; And a columnar plate fastening portion provided at the lower center of the pedestal portion and formed integrally with the pedestal portion and having a male screw fastened to the female thread of the fastening hole of the fastening plate on the outer circumferential surface thereof
It can be easily fixed to the fixing plate by the screw fastening method, can be easily manufactured by the forward extrusion method, and the superior vertical standing force and the horizontal standing force are ensured, so that the fastening component can be supported more stably.

Description

Pam Nut {PEM NUT}

The present invention relates to a pneumatic nut, and more particularly, to a plate member fastening portion screwed to a fastening plate integrally provided with a pedestal portion to which a component is fastened.

There are many kinds of mechanical elements used as fastening parts, but screw type, which is composed of bolts and nuts, is widely used not only in machines but also in electronic products.

For example, bolts and nuts are used for the fastening method used for structural frames of PDP, LCD flat panel displays.

The structure of the flat panel display is used as a design required by bending or cutting a thin plate. However, fixing of the nut in tightening the bolt and the nut used in the thin plate material is a problem.

Welding, one of the fixing methods, has been developed due to environmental problems, eccentricity of the fastened nuts, appearance and workability problems, among which PEMNUT (PEM NUT) is used in flat panel displays in Samsung Electronics and LG Electronics .

The name Pam Nut is called PEM because the name of the famous company that uses this product is PEM, and development of the product is developed mainly in the company's products in Korea, and it is actually a stand-off.

There are two main uses of the Pam nuts. One is fixing the nut to the thin plate, and the second is maintaining the gap with the other plate.

Most of the Pam nuts used in flat panel displays are used in parallel for two purposes.

However, since the above-mentioned Pam nuts are heavily priced at a high price while increasing the weight of electronic products, there is an increasing need for new designs to reduce airflow and reduce costs.

Meanwhile, various kinds of structures of PDP and LCD TV are available, and various types of structures such as a back cover, a cabinet, a main frame, a shield, a supporter, a hinge, Glass, heat sinks, circuit boards, and the like.

Here, Pam nuts are used for fastening many structures in a wide variety of sizes, depending on the TV product.

The manufacturing process of the Pam nuts is drilled after tapping and automatic lathing process, and the cost is relatively high due to the raw material and processing costs.

1 and 2 are vertical cross-sectional views illustrating a state in which a Pam nut is fastened to a fixing plate according to a related art.

The flange portion 420 is provided under the support portion 410 having the component fixing hole 411 and the flange portion 420 is provided on the support portion 410, And a fastening groove 412 is provided around the lower end of the fastening hole 412. [

The conventional press-fit type Pam nut 400 shown in FIG. 1 is configured such that when the receiving portion 410 is inserted into the fastening hole 201 of the fixing plate 200 and then the flange portion 420 is pressed through the pressing mold A part of the fixed plate member 200 is press-fitted into the fixed plate member 200 while being filled in the engaging groove 412 provided at the lower outer periphery of the receiving portion 410.

2 is a screw fastening type in which a flange portion 520 is provided below a receiving portion 510 having a component fixing hole 511 and a receiving portion 410 And a fastening screw 512 is provided on the outer circumferential lower portion.

The conventional screw fastening type Pam nut 500 shown in FIG. 2 has a structure in which a receiving portion 510 is inserted into a fastening hole 201 of a fixing plate 200, When the fastening nut 530 is fastened to the fastening screw 512 of the flange 520 and the fastening nut 530 is fastened to the flange 520 and the fastening nut 530, Is fixed to the plate member (200).

The following Patent Document 1 discloses a push-in type Pam nut, and the following Patent Document 2 discloses a screw fastening type Pam nut.

On the other hand, about 20 to 30 Pam nuts are used in the cover cover, which is the core equipment of the back light unit of the LCD TV currently on the market.

In the meantime, Pam nuts used for wall-mounting LCD TVs are used to fix the TV to the wall. For this reason, it is necessary to secure a vertical lift force of 50 kg / f and a horizontal lift force of 60 kg / f or more.

Korean Patent Publication No. 10-2007-0049616 (published on May 11, 2007) Korean Patent Publication No. 10-2015-0072825 (published on June 30, 2015)

However, according to the conventional push-in method, the Pam nuts 400 have difficulty in securing a vertical footing force and a horizontal footing force that are higher than the above values.

In addition, since the Pam nuts 500 of the screw fastening type according to the related art have good vertical and horizontal standing forces, they are manufactured by cutting, so they are difficult to manufacture and fastened to the fixed plate through separate fastening nuts. There arises a problem that it becomes inconvenient to do the following.

The present invention has been made to solve the problems of the conventional Pam nuts, and it is an object of the present invention to provide a Pam nut which is firmly fastened to a fixed plate and is capable of exhibiting excellent vertical footing force and horizontal footing force will be.

It is an object of the present invention to provide a Pam nut which can be easily manufactured with a small number of workpieces and can be easily fastened to a fixed plate.

According to an aspect of the present invention, there is provided a pneumatic nail according to the present invention, the pneumatic nut having a columnar support portion having a component fastening hole formed with a female screw at an upper center thereof; A ring-shaped flange portion provided on the lower outer periphery of the receiving portion and integrally formed with the receiving portion; And a columnar plate fastening portion provided at the lower center of the pedestal portion and integrally formed with the pedestal portion and having a male screw fastened to the female thread of the fastening hole of the fastening plate on the outer circumferential surface.

The Pam nut according to the present invention is characterized in that a fastening tool groove for connecting a fastening tool is formed on the upper end of the bearing portion.

The flange portion of the Pam nut according to the present invention is characterized in that the flange portion is formed to have a tapered portion with a high receiving portion and a low taper portion.

The Pam nut according to the present invention is characterized in that it is formed by a forward extrusion method in which a billet inserted into a container, a flange portion, and a plate material fastening portion is pressed by a pressing plate of a ram.

The Pam nut according to the present invention is characterized in that a serration groove is formed around the lower end of the flange portion.

The Pam nut according to the present invention is characterized in that the bearing has a hexagonal columnar shape.

According to the Pam nut according to the present invention, it is possible to easily fix to the fixing plate by the screw fastening method, and to secure the vertical fastening force and the horizontal fastening force, thereby stably supporting the fastening part.

Further, since the Pam nuts according to the present invention can be easily fastened, they can be transported separately from the stationary plate and then fastened to the stationary plate in the use area, thereby reducing the stacking volume and packing volume of the stationary plate The logistics cost can be greatly reduced.

In addition, since the Pam nuts according to the present invention can be fastened and fixed to a fixed plate at a time through a plurality of Pam nuts by means of an automation machine, productivity and cost reduction of products using the Pam nuts can be achieved.

1 and 2 are vertical cross-sectional views of a state in which a Pam nut is fastened to a fixed plate according to a related art,
3 is a perspective view of a Pam nut according to a first embodiment of the present invention,
4A is a longitudinal sectional view of the Pam nut according to the first embodiment,
4B is a vertical cross-sectional view of the fastening plate fastening state of the Pam nuts according to the first embodiment,
5 is a molding example of a Pam nut according to the first embodiment
6 is a perspective view of a Pam nut according to a second embodiment of the present invention,
7 is a perspective view showing the bottom of the Pam nut according to the second embodiment,
8 is a longitudinal sectional view of the fastening plate fastening state of the Pam nuts according to the second embodiment,
9 is a perspective view of a Pam nut according to a third embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a pneumatic nut according to the present invention will be described in detail with reference to the accompanying drawings.

In the following, the terms "upward", "downward", "forward" and "rearward" and other directional terms are defined with reference to the states shown in the drawings.

FIG. 3 is a perspective view of the Pam nut according to the first embodiment of the present invention, FIGS. 4a and 4b are longitudinal sectional views of the Pam nut in the separated state of the fixed plate according to the first embodiment, and vertical cross- .

The Pam nut 100 according to the first embodiment of the present invention includes a receiving unit 110, a flange unit 120, and a plate joining unit 130.

The pedestal 110 supports the fastening part 210 and has a cylindrical shape with the upper and lower ends closed.

A component fastening hole 111 for fastening the fastening part 210 such as a printed circuit board in a state of being spaced apart from the fixed plate 200 by a predetermined distance is provided at the upper center of the support part 110, The fastening tool groove 112 is formed.

A female screw is formed in the component fastening hole 111 of the receiving portion 110.

The flange portion 120 is a portion which is in close contact with the upper end surface of the fixing plate 200 and is provided around the lower end outer periphery of the receiving portion 110.

The flange portion 120 is integrally formed with the receiving portion 110 and is in the form of a ring.

The flange portion 120 is formed as a slope having a high height on the side of the receiving portion 110 and a low outer side so as to be elastically brought into close contact with the fixed plate 200.

The plate member fastening part 130 is a part to be fastened to the stationary plate member 200 and has a cylindrical shape.

The plate fastening part 130 is formed integrally with the receiving part 110 at the center of the lower end of the receiving part 110.

On the outer circumferential surface of the plate member fastening part 130, a male screw fastened to the female screw of the fastening hole 201 of the fastening plate 200 is formed.

5 is a molding example of a Pam nut according to the first embodiment.

5, the billet 100 according to the preferred embodiment of the present invention includes a billet 2 inserted into a container 1 and a pressurizing plate 3a of a ram 3 to press the component fitting hole The flange portion 120 is formed while forming the flange portion 111 and the sheet material coupling portion 130 is extruded through the hole formed in the die 4.

The nut 100 according to the first embodiment of the present invention is fastened to the fastening hole 201 formed in the fastening plate 200 by a screw method.

A process for fastening the Pam nut 100 according to the first embodiment of the present invention to the fixed plate 200 is as follows.

The lower end of the plate fastening part 130 protruded to the lower side of the receiving part 110 is positioned at the upper end of the fastening hole 201 formed in the fixing plate 200. [

Next, the fastening tool is connected to the fastening tool groove 112 provided at the upper end of the receiving unit 110, and then the receiving unit 110, the flange unit 120, and the plate fastening unit 130 are pressed in one direction .

The receiving portion 110 and the flange portion 120 are coupled to the female thread of the fastening hole 201 formed in the fastening plate 200 through the pressing rotation of the receiving portion 110 or the like, The sheet material coupling part 130 is lowered.

The lowering of the receiving portion 110, the flange portion 120 and the plate joining portion 130 is continued until the flange portion 120 is brought into close contact with the upper face of the fixed plate 200. At this time, (120) spreads horizontally and elastically adheres to the upper surface of the fixing plate (200).

After the Pam nut 100 is screwed to the fixed plate 200 as described above, another fastening part 210 such as a circuit board or a support is placed on the upper end of the receiving part 110 of the Pam nut 100, The fastening part 210 can be spaced apart from the upper part of the fixing plate 200 when the fastening part 211 is fastened to the fastening part 111.

The flange 120 is elastically brought into close contact with the upper end of the fixing plate 200 to be vertically and vertically connected to the fixing plate 200. [ The foot force and the horizontal foot force are excellent, so that even if a relatively large load is transmitted through the fastening part 210 fastened and supported to the support part 110, there is no possibility of separation from the fixed plate 200.

That is, the Pam nut 100 according to the first embodiment of the present invention can more stably cope with the external loads in the respective directions including the left-right direction and the back-and-forth direction of the receiving unit 110.

The flange portion 120 of the Pam nut 100 according to the first embodiment of the present invention is formed such that the receiving portion 110 is higher and the outer side is lower. 200, the outer side of the lower end face of the flange portion 120 is first brought into contact with the upper end face of the fixed plate 200.

The flange 120 of the flange 120 of the flange 120 and the flange 120 of the flange 120 may be in close contact with each other as the screw of the plate joining unit 130 is tightened, When the fastening part 210 is fastened to or detached from the support part 110, the screw fastening of the plate fastening part 130 is released by the vibration of the other use process .

FIG. 6 is a perspective view of the Pam nut according to the second embodiment of the present invention, and FIG. 7 is a perspective view showing the bottom of the Pam nut according to the second embodiment.

6 and 7, the Pam nut 100 according to the second embodiment of the present invention is provided with the serration grooves 121 around the lower end of the flange portion 120.

The Pam nut 100 according to the second embodiment of the present invention is characterized in that serration projections 202 corresponding to the serration grooves 121 of the flange portion 120 are provided around the fastening holes 201 of the upper surface And is fastened to the fixed plate member 200.

FIG. 8 is a longitudinal sectional view of the fastening plate fastening state of the Pam nuts according to the second embodiment. FIG.

6 to 8, the serration grooves 121 provided at the lower end of the flange portion 120 in the fastened state of the fixed plate 200 are fixed to the fixed plate 200, When the fastening part 210 is fastened to or detached from the support part 110 because the fastening part 210 is coupled to the serration protrusion 202 provided at the upper end of the plate fastening part 200, Is not released.

9 is a perspective view of a Pam nut according to a third embodiment of the present invention.

The nib 100 according to the third embodiment of the present invention shown in FIG. 9 has a hexagonal pillar shape.

The Pam nut 100 according to the third embodiment of the present invention is provided with a driver connected to the fastening tool groove 112 provided at the upper end of the receiving unit 110 or a wrench connected to the outer periphery of the receiving unit 110 The plate member fastening part 130 can be fastened to the fastening hole 201 of the stationary plate member 200 by rotating the support part 110.

The Pam nut 100 according to the present invention presses the billet inserted into the container with the pressing plate of the ram to form the receiving unit 110, the flange unit 120, and the plate joining unit 130 by forward extrusion, It is possible to easily manufacture a female screw into the fastening hole 111 and a small number of steps of forming a male screw on the plate fastening part 130.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

100: Pam Nut
110:
120: flange portion
130: plate member fastening portion

Claims (6)

A columnar support portion 110 provided with a component fastening hole 111 formed with a female screw at an upper center thereof;
A ring-shaped flange portion 120 provided around the lower end outer periphery of the receiving portion 110 and integrally formed with the receiving portion 110;
A columnar plate member formed integrally with the receiving portion 110 and provided on the outer circumferential surface thereof with a male thread to be fastened to a female thread of the fastening hole 201 of the fastening plate 200, (130)
The billet inserted into the container is pressed by the pressing plate of the ram so that the component fixing hole 111 of the receiving portion 110 is formed by the protruding portion of the pressing plate 3a and the plate fastening portion 130 is formed by the hole formed in the die 4, The flange portion 120 and the plate material coupling portion 130 are formed by a forward extrusion method in which the flange portion 120 is formed by the space between the container 1 and the dice 4, Is formed. The method according to claim 1,
Wherein a fastening tool groove (112) is formed at the upper end of the receiving part (110) so as to connect a fastening tool. The method according to claim 1,
Wherein the flange portion (120) is formed to have a high inclination at the side of the receiving portion (110) and a low inclination at the outward side. delete The method according to claim 1,
Characterized in that serration grooves (121) are formed around the lower end of the flange portion (120). The method according to claim 1,
Characterized in that the pedestal (110) is hexagonal columnar.
KR1020150176475A 2015-12-11 2015-12-11 Pem nut KR101615115B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150176475A KR101615115B1 (en) 2015-12-11 2015-12-11 Pem nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150176475A KR101615115B1 (en) 2015-12-11 2015-12-11 Pem nut

Publications (1)

Publication Number Publication Date
KR101615115B1 true KR101615115B1 (en) 2016-04-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150176475A KR101615115B1 (en) 2015-12-11 2015-12-11 Pem nut

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019090492A (en) * 2017-11-15 2019-06-13 株式会社川本製作所 Sealing structure and pump device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019090492A (en) * 2017-11-15 2019-06-13 株式会社川本製作所 Sealing structure and pump device
JP7019385B2 (en) 2017-11-15 2022-02-15 株式会社川本製作所 Sealed structure and pumping equipment

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