JP2019132417A - L-shaped one stage bolt with one hole - Google Patents

Abstract

To provide an L-shaped one stage bolt with one hole, capable of performing screw fastening quickly, and performing fixation tightly without retightening.SOLUTION: A nut is inserted in advance, a member is moved closer to L3, and then a screw is inserted into L1 with a semi-fixing member while cutting the screw, and thus fixed completely. Then, a stopper pin is inserted into A, and fixed completely.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a bolt in which one step is formed in one hole on the shaft of an L-shaped bolt.

  Conventionally, the bolt is separated from the L-shaped bolt, one hole and one stepped bolt.

Patent technical literature

Patent Literature

JP 2001-263327 A

This has the following drawbacks.
In the past, bolts were worn out many times, worn out, tightened, bent, etc. In addition, rust was often a problem.
The present invention has been made to eliminate the above drawbacks.

One hole is provided in the L-shaped bolt, and one step is provided thereon.
By using an elastic material, measures against strain are taken and the original function of the bolt is maintained.
The present invention is an L-shaped one-hole type one-bolt bolt having the above-described configuration.

Since the bolt is integrated with the L-shaped one with a step in one hole, using this can save time and work on the shaft of the bolt, allowing you to quickly and accurately perform manual work. There is nothing wrong with it.

  It is a side view of the present invention.   It is a top view of the present invention.

Hereinafter, modes for carrying out the present invention will be described.
The bolt head has an equilateral triangle shape, and is an L-shaped bolt with one step in one hole. Using natural materials according to the strain, the bolt breaks due to bending, metal fatigue, etc. It is to alleviate being done.
The present invention has the above structure.

It is an important bolt that has been used considerably in various industrial sectors and must be used once as a precision machine and other parts.
The economic effect is an invention that demonstrates outstanding power. It is indispensable for the medical sector, ultra-precision equipment, automobile industry, shipbuilding industry, space development and aircraft parts.

Bolts are also used as contacts for electronic equipment, and electrical circuits may be established.
In addition, safety is promised by using it for high voltage materials.
As a result, it is also used for bolt screws made of germanium plating material.

  When the flammable gas is filled, the use of a germanium plating material for the L-shaped single-hole type single-stage bolt, which is the product of the present invention, can reduce the amount of sparks generated by electricity.

  When stainless steel material is used, it is possible to achieve tremendous performance in ultra-high and low temperatures. Also, the ferrite pin is used for the stopper pin used in the bolt and nut.

According to the above, the stopper pin can never fall.
This magnet is good and effective because it is strong against aqueous solution.

In addition, by using reinforced rubber or the like in an inconspicuous place, the performance of the L-shaped single hole type single bolt of the present invention is further enhanced.
This bolt is a small, light and inexpensive invention.

  One hole of the bolt shaft reduces the strain with respect to the load, and the bolt head means a plastic action. When a vector-like force is applied due to this strain, there is a slight distortion, which indicates a causal relationship that is strong against the bending and bending of the bolt.

  Use of elastic material δ = Eε (Hooke's law) Elasticity of materials that are greatly deformed compared to metals, such as rubber, is classified as entropy elasticity. What is the elasticity (energy elasticity) of metal materials? The principle of elasticity is different.

This refers to the elasticity that occurs when a martensitic transformation induced by stress reversely transforms under a certain temperature and returns to its original shape.
This superelasticity does not follow Hooke's law. This property is applied to shape memory alloys.

In particular, a shape memory alloy having an elastic recovery temperature of room temperature or lower is also called a super elastic alloy.
As described above, one step is provided in one hole on the bolt shaft.

In the bolt head, the elongation is related to the work hardening characteristics of the metal material. If the work hardening tendency is large, the elongation tends to increase.
In the case of contraction, compression strain is obtained by 100 × (L0−L1) / L0.

Tf = k × d × p
Tf: Maximum tightening torque k: Torque coefficient (varies depending on a friction coefficient such as a screw surface and a bearing surface)
d: Nominal diameter of screw p: Tightening axial force screw is not damaged.

Tf = 0, 35 × k (1 + 1 / A) × 6y × As × d
Tf: Recommended tightening torque A: Tightening factor 6y: Lowering point or proof strength As: Effective cross-sectional area bolts must not be distorted by calculation by torque.

Do not electroplate the screws of strength class 12 and 9. Be sure to perform baking when electroplating the screws of strength class 10 and 9.
Sufficient rust prevention measures are required for screws with strengths of 10 and 9 or higher.

Do not weld to bolts.
Do not post-process the product. Fatigue failure occurs depending on the magnitude of the stress.

Use within the proper temperature range. Do not reuse screws or use rusted screws.
Do not use for any purpose other than the intended use (fastening) of the screw.
The set screw is not used for anything other than its intended purpose, such as a nut hook, which is not used where a tensile load acts.

    Stainless steel has poor corrosion resistance when high temperature heat is applied, and bolts may be damaged. In particular, the austenite system is prone to cleave and intergranular corrosion, and the martensite system is brittle.

  While the bolt is repeatedly subjected to vibrational and variable loads, a very small crack enters a part of the bolt, and this crack gradually expands as the load repeats, resulting in local failure. It progresses and breaks instantaneously and cannot withstand the load.

  As described above, there is no L-type bolt single hole type one-stage bolt.

There are double nuts, washers, mechanical fixings, screw locks, etc. to prevent loosening, and the method of assembling the screw parts vertically, set screws, etc. are performed.

It must be fixed securely by fixing the parts and the number of screws so that the parts do not move or loosen. There must be no distortion depending on the purpose.

The screw bolt does not need to hold down the nut and can be tightened with only one tool, so it is easy to assemble.

  The assembly and arrangement of screws must be determined. It is important to keep in mind that the screw should be placed at a position where the tool is easy to use.

  When using screws in machine design, care must be taken in screw placement and proper thread component selection. In using this L-shaped single hole type one-stage bolt of the present invention, it must be performed in accordance with this bolt.

It is known that the iron powder on the bolt shaft is iron and zinc.
Emphasis is placed on the effects of vibration and parts feeders that come into contact with each other.

It means that the plating is peeled off due to the vibration and collision of the parts feeder, and the substrate is scraped. The scale comes off, and the treatment after heat treatment is the point.

  As mentioned above, it goes without saying that the L-shaped single-hole single-stage bolt of the present invention is a very good bolt. There is no doubt that how to prevent harmful effects caused by parts feeders and metal fatigue is an important issue.

  In the manufacturing industry, screw axial force management is very important. Substitution characteristics such as tightening torque are used. Reusing bolts is not good.

When the metal enters the plastic region slightly beyond the yield point (elastic region), the stress becomes maximum, and the bolt becomes a bolt in this region.
Thus, the bolt head shows a plastic zone.

The strain ε is ε = I−I ₀ / I ₀
= ΔI / I ₀
In this way, it is obtained by the bolt strain rate calculation formula.

Definition of shear strain γ = ΔI / I
The method of deformation is different from normal strain.

Strain tensor ΔI / I = tan θ
Furthermore, considering that θ is very small, it can be approximated by θ.
tanθ ≒ θ

γ = θ1 + θ2
= ΔIx / Iy + ΔIy / Ix
This is the definition formula when the deformation is expanded in two directions.
As described above, various stresses appear as strains.

It is a perfect invention for applying a load to a material such as metal and stretching the material in the axial direction. Slightly stretched semiconductors used for bolt materials.

The nut is fixed by using a stopper pin in one hole for the bolt axial force.
This is done quickly and rationally by using a ferrite magnet.

A member is provided on the head of the bolt shaft, and a semi-fixed member is provided at the right end of the bolt shaft.
A crank angle of 34 ° to 37 ° is used for the bolt shaft, and a two-stage crank angle is used to keep the crispness and meshing strongly promised.

By using the crank angle, two-stage gear meshing is promised.
There is no slip and no play at the right time.

Set the special tool on the bolt and remove it by turning it by hand. Since the left crank and right clan are supported, the right crank can be pulled in this state.
The crank angle of this bolt must not be damaged and retightening must be prevented.

fsa cranks are good at making relatively low cost cranks.
Design, manufacturing, management, inspection, and production process batch management are required.

Torque is a moment of force around a rotation axis that works around a fixed rotation axis in mechanics.
F = d / dt (mv)
Second law of motion

The kinetic energy k is
k = m / 2 · U ² > 0
So,
U = E−K <E
And the range of potential is determined.

In addition, the mechanical energy can be changed to internal energy or other energy in thermodynamics. In this case, the mechanical energy cannot be stored, but the energy as a whole is stored.

It goes without saying that the L-type single-stage bolt of the present invention is a bolt that has been advanced one step as described above. Insert the nut in advance, then insert it into the semi-fixed member at the tip of D, and then insert the stopper pin. This is almost the end of the work.

The member is completely fixed to the bolt head. Bolt screws are developed effectively and rationally with a slight sustaining force against strain due to stress due to physical, mechanical energy, etc.

The equilateral triangle on the bolt head is used for quick, accurate, stable and simple operation by using an L-shaped tool.

Plastic elongation can be considered by applying stress at the bolt head. This is based on the balance of balance on the physical basis of everything on the earth, and is worth the existence value that must be.

[Fig. 1] H φ 20 mm, D φ 8 mm, L2 φ 5 mm, Nut L 28 mm, φ 9 to 9.75 mm, A 2, 5 to 3, 7 mm, [Fig. 2] B 6,5 mm (length of one side)
The L-shaped single-hole single-stage bolt of the present invention can have such a size.

Use three colors for the stopper pin, such as stainless steel, elastic polyethylene, and ABC resin.
Both are very easy and fast to handle.

In addition, if a silicon semiconductor material is used for the bolt body, a withstand voltage is very promised. This is a material suitable for high voltage, and uses a drone-like method.

In power conversion systems, it is ideal for bolt screws that are handled by high-voltage electricity.
This is nothing but advanced digitalization.
A germanium plating material with an insulating effect is optimal.

When sic semiconductor material is used, it is suitable for withstand voltage and is used very effectively, and it is used not only as a bolt for load but also as an electrical tool that matches the needs.

Each material such as aluminum, germanium, and stainless steel has unique properties, and each place has its efficacy effect.

The bolt shaft has a law of elasticity. The approximate law is that the spring elongation and the load below the elastic limit are directly proportional.

A substance for which the hook law is approximated is called a linear elastic body or a hook elastic body.
As a result, the metal fatigue of the bolt body is also durable and is calculated theoretically.

と表せる。
ｘは自然長からの伸び、まはたちじみ
Ｆはばねによる反力
ｋはばね定数と呼ばれる定数
これにより、ボルト軸に対する負荷の計算ができるのである。

It can be expressed.
x is an extension from the natural length, and F is a constant, a reaction force k of the spring is a constant called a spring constant. Thus, the load on the bolt shaft can be calculated.

With growth, there is power. (The force is proportional to the elongation.) This was proposed by Robert Hook.
The load is directly proportional to the elongation, and as x increases, the proportional relationship between x and the restoring force f collapses.

Newtonian fluid is a fluid with a viscosity property in which the shear stress of the flow is proportional to the velocity gradient of the flow. This flow is called Newtonian flow.

Stainless steel is used for the bolt shaft and aluminum is used for the bolt head.
This is done in the manner of casting and eliminating waste.

生かして行き、極小の特性を生かして、軽量化できるのである。
ｓｉｃはＳＩより絶縁破壊や熱に強い特長を有し、次世代の電力変換用半導体としてすぐれているのである。

It is possible to save weight by making the best use of the tiny characteristics.
sic is more resistant to dielectric breakdown and heat than SI, and is excellent as a next-generation power conversion semiconductor.

  A pin diode (rectifying element) having a breakdown voltage of 20000 volts or more was realized, and an ultrahigh breakdown voltage was obtained using a high-purity sic crystal having a thickness of 180 microns.

  The electric field concentration was alleviated and a spatial modulation type junction termination structure was used. Surface protection using a polyimide film was applied to suppress discharge on the surface.

  The device causes dielectric breakdown at a low voltage, and only about half the theoretical value (50%) is obtained. Aluminum is ion-implanted locally at an appropriate density in the periphery of the PN junction, and the breakdown voltage is 20000 volts or more. As a result, a further effect can be expected by using the pole-type screw of the present invention as described above.

When high-strength bolts that have been subjected to hot dip galvanization are used in building structures, the plating adhesion amount is 550 g / m ² or more, which is excellent in long-term rust prevention.

  Since the nut is plated after screw processing, the rust prevention of the screw portion is sufficiently ensured, and since the nut is lubricated after plating, the torque coefficient value is stable and superior by the nut rotation method.

  For piping, manual torque wrench, hydraulic tensioner, flange spreader, hydraulic boiler, stainless steel pipe flange, stainless steel threaded pipe fitting, stainless steel butt welded pipe fitting.

By providing a small hole in the bolt, the power of the spring is increased and the power is outstanding.
Damaged bolts are guaranteed to be slightly resistant to strain when stress is applied.

L-shaped bolts are distorted by stress. Along with this, eventually, the limit state was reached, the bolt was bent and cut. The L-shaped single-hole type single-stage bolt of the present invention is never present, has a slight durability against metal fatigue and the like, and is durable.

Germanium plating material is most important to use as a bolt.
Needless to say, it is a semiconductor that is extremely effective in the industrial sector and other fields because of its extremely low temperature / high temperature, resistance to vibration and shock, and electrical insulation.

When high-strength bolts that have been subjected to hot dip galvanization are used in the construction sector, the amount of plating adhered is 550 g / m ² or more, which is excellent in long-term rust prevention.

When a sic semiconductor material is used, it has characteristics that are more resistant to dielectric breakdown and heat than sI, and is very effectively used as a semiconductor in the next generation power conversion system.
In addition, it is highly expected that such materials are used.

Bolt screws are also expected to be used in a range where drastic reduction in size, loss and cost can be achieved if semiconductors are used.
It is a semiconductor that uses aluminum, germanium, or the like. Bolts are inherently sustainable.

The present invention is an L-shaped one-hole type one-stage bolt excellent in durability, sustainability and stress due to Clausius's inequality.
Due to the strain caused by stress, elastic materials are indispensable, and durability and durability are increased.

Screw shafts can be troubled by malfunctions due to vibration, shock, and looseness. In such a case, a double nut is inserted into the nut used for the bolt shaft.

It goes without saying that inserting a nut into the bolt shaft does not damage the screw and can increase the service life.

The stopper pin of the bolt shaft is carried out using the thread crank angle, and stops at the bolt hole depth of 1,5 mm. The crank angle is 21 ° to 23 °.

A circular or donut shape is used for the member, making use of the original characteristics of the bolt.
This member is a semiconductor using a ferrite magnet.

An L-shaped tool by using an equilateral triangle is used for a bolt head, and a manual operation is performed speedily and rationally.

Also, the bolt shaft may have a groove in the bolt shaft at 12:00 and 16:00 of the clock. This creates a gap between the bolt shaft and nut.

This is an L-shaped one-hole type one-stage bolt of two birds with one stone provided in order to prevent distortion from occurring due to stress due to water pressure and the wire diameter of the spring.

Water pressure, bolt shaft, sustainability, durability, and rationally.
It is important to change the original bolt material according to the water quality.

It is a bolt shaft that produces 2-3 steps by performing a bolt thread crank angle of 37 °. As a result, the slippage and rattling of the thread are reduced, and the original characteristics of the bolt are maintained to the maximum.

It is important to use stainless steel SUS304 if it is used very effectively in corrosiveness, vibration, impact and other fields.

Due to the original characteristics of the bolt and the bolt head, when the strain is generated against the stress, durability and durability are guaranteed until the bolt is about to break due to elastic material and plastic elongation as if cutting a cross. It is.

Bolts must be made inexpensively, miniaturized and low loss, easy, quick and speedy.
When one of these is damaged, there is no need to change the material.

In any and all materials of bolts, stresses and strains with the wire diameter of the springs occur. It cannot be identified with the naked eye.
This can be found from the data through material testing.

The bolt shaft, L3, has no screw and is used for mounting a member here, the other classes indicate that there is a screw, and a nut is inserted to the left.
As a result, the original characteristics of the bolt are maintained.

Unlike the right triangle of Pythagoras's theorem, an equilateral triangle is used for the bolt head, which uses an L-shaped tool and performs it quickly, smoothly and speedily.

The bolt head shows a plastic area in a vector manner, and one hole is provided in the bolt shaft, ensuring durability and durability.
A long life is promised.

Square threads and trapezoidal threads have a triangular cross section, and they are crisply meshed so that iron powder and dust do not adhere.

Careful attention is always required so that the bolt shaft does not crack.
Care must be taken not to apply excessive load during use.

[Figure 1]
Side view H = 40mm
H '= 17mm
L1 = 18mm
L2 = 25mm
L3 = 15mm
D = 16mm
Nut = 28mm
Nut Φ = 9-9, 7mm
A = 2,5-3,7mm
B = 6,5mm (length of one side)
[Figure 2]
Plan view B = 6,5mm

Claims (20)

An L-shaped single-hole bolt with an L-shape and a shaft with a single hole and a step. If a silicon semiconductor material is used for the bolt, it has a withstand voltage of 6000 to 8000 volts and can be used effectively. Further, when a sic semiconductor material is used, it has a withstand voltage of 20000 volts and can be used effectively. In addition, it can be used for frequency conversion bolts in high-voltage DC power transmission East Japan (50 Hz / West Japan (60 Hz)) using a submarine cable. In power conversion system, it is most suitable for bolts that can handle electricity of 10,000 to 30,000 volts. Use a screw thread crank angle of 37 ° and overhead wire (6600 volts in the wiring system)

The semiconductor used for the bolt material can be greatly reduced in size, loss, and cost, and can save power for one or two nuclear power plants in a high-voltage power conversion facility. Bolt screws can be developed by using a semiconductor such as aluminum or germanium as the bolt material. When a germanium plating material is used, considerable insulation is achieved, and spark discharge is reduced in the electrical field, and it is most suitable for the L-type single hole type single bolt of the present invention for pharmaceuticals, decorations, and the like. In addition, it is indispensable for electronic device contacts, terminals, mechanical parts, etc., and is made of an intermediate material of conductors and insulators, so that the insulation effect can be achieved more reliably. It is excellent in wear resistance, oxidation resistance, heat resistance, etc. and is expected to be applied in a sustainable range due to the inherent limitations of bolts. It is very effectively used in bonding, reflection, electrical conductivity, decoration, and other fields, and has sufficient durability against water pressure, ultra-low sound, salt damage, corrosiveness, vibration and impact. The L-type single-hole single-stage bolt is a Newton's law of conservation of momentum, which generates strain when stress is applied. By making one hole in the bolt according to the law of energy conservation, sufficient durability of the elastic material is promised. The kinetic energy of the object is conserved only in the case of a completely elastic collision, and durability is promised when stress is applied compared to a bolt in a normal state with little strain. The product of the present invention by Clausius's inequality is excellent in durability, sustainability and stress, and it is needless to say that it is an excellent bolt screw, and is a bolt screw that is useful for these physical laws. L-shaped bolts can be bent, cut, pulled and compressed when stressed, and they are also durable against metal fatigue. It is possible to prevent rust and corrosion by plating the damaged part with a plating material. If the axial force of the screw is weak, it will cause loosening due to vibrations, causing damage to the fastened member that is too strong, or causing the plastic to be plastically stretched and loosening. Therefore, substitute characteristics such as tightening torque are utilized. When the screw is tightened and axial force is applied, the screw stretches in proportion to the axial force up to the lifting point, and when the axial force is removed, the screw stretches back. One hole was provided in the bolt shaft in these elastic regions. The torque method is a tightening management method using a linear relationship in the elastic region between the tightening torque and the tightening axial force. Therefore, care must be taken in managing the friction characteristics. This bolt reduces looseness and looseness by a tightening method that uses the property that when the axial force of the screw exceeds the yield point, the elongation rapidly increases with respect to the axial force. Bolts generally stretch slightly, and when they reach the limit, they eventually break. In the tensile and compression tests, the shape of the bolt is slightly different.
In the L-shaped single hole type one-stage bolt of the present invention, the limit force is several tons.

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