JPS6025661A - Public combination socket wrench or spanner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention relates to a kind of dual-purpose socket wrench or spanner, in which a plum blossom-shaped hexagonal hole is provided, and the outer circumference of the hole is the same as the hole. These include a socket wrench, for example, which has a flat concentric circumference, or a spanner, for example, a box spanner, which has a hand-drilled hole υ outside the circumference. The dual-purpose socket wrench or spanner of the present invention can be used with similar toothed rotating objects such as hexagonal or six-sided nuts or bolts. Each of the six angles designed in the tool of the present invention has been calculated in detail, and the angles and side lengths are mathematically based. A dual-use socket wrench or spanner designed in this way is used for bolts or nuts with two or more dimensional standards that are very close together, and is particularly suitable for split and English nuts that are very close together. Since it can be used with just a single English socket wrench or spanner, it has the advantage of saving materials and being convenient. At the same time, with the design of the hexagonal hole of the present invention, the force-receiving point for use is at the size y of the nut, not at the apex of the hexagon, so the tool of the present invention protects the apex angle of the bolt and nut. It has the effect of not rounding their apex angles.

Purpose of the Invention Currently, countries around the world are recommending and implementing the public weights and measures system one after another, but it is unlikely that those who originally used the English system for machinery, equipment, automobiles, etc. will be weeded out within a short time. It's impossible. As new equipment is partially changed into separate units, a mixed use system is created in the market, creating a very inconvenient phenomenon for tool users. Therefore, the dual-purpose socket wrench or spanner of the present invention has been researched and designed with this in mind as the main purpose, and at the same time, the usage situation of the general socket wrench 1 is as shown in Fig. 3. However, the apex angle changes to a circular shape depending on the weaving method, causing damage to the nut itself.In contrast, the present invention also improves the effect of protecting the nut.

Another object of the invention is to enhance the service life of the tool of the invention. This is because the general socket wrench or plum blossom-shaped box spanner 1, for example, as shown in Fig. 3, has an acute apex angle design of 120°, and the 120° acute angle forms a straight line. When weaving, stress gathers on a line and ruptures the corners of the nut 2, but the design of the present invention does not have acute angles and has an arcuate surface, so stress does not concentrate when weaving. , the usage life can be extended.

Another object of the present invention is to improve the manufacturing convenience and durability of the punch model or brooch Broaoh, which is complicated to manufacture and friction model because the general model is dodecagonal. Although it is early, the tool of the present invention has a hexagonal design,
It is an improvement on the general dodecagonal design.

Technical Contents and Effects The dual-purpose socket wrench or spanner of the present invention is a kind of tool 3 with a plum blossom-shaped hexagonal hole 4 provided on the top surface (for example, a socket wrench or box spanner), so that it can be used for hexagonal and six-sided nuts, etc. It can be used to tighten or loosen screws. One of the advantages of the present invention is that one dual-purpose socket wrench or spanner can be stacked and used for split nuts with similar dimensions, which is convenient for saving and using materials. Let this be its main characteristic -.

Examples Examples are 10. I will explain the design calculated for both nuts and %''.

As shown in Fig. 4, a 10° (slightly larger dimension was chosen) equilateral hexagonal shape 5 is placed on the top surface of the tool, and then it is placed at a distance of 2.022° from the apex M. Straight line a M+ to point, angle IMhM'=lz =10.165
15, and further design N N' straight line perpendicular to one RM to intersect aM' on point N, and also design on each hexagon based on the above mathematical basis. . After that, one arcuate shape is modified at l N % l N' to prevent stress concentration and rupture when the tool is woven and used. The plum blossom-shaped curve 6 that has been designed can be stacked and used for bolts of 10" and 10".Also, if this plum blossom-shaped curve 6 is enlarged or reduced by the same ratio, it can be used for bolts of other dimensional standards. Can be applied to nuts.

The calculation explanation for the embodiment of FIG. 4 is as follows.

From the hexagonal diagram of a nut with 10 dimensions, calculate the following numbers in order to design the dual-purpose socket wrench or spanner of the present invention.

ab, Na, NN'fZ, /aNM, ZNMa = '
Take i'.

8M = 10mm RM = Light%/T3 ==5.7□3. . -8K =
378″= 0.79375 x 12= 9.525
゜RE=朋”=5.4992611M&=2(
Rm -2) = 2022 questions EPL engineering 2 (RE-T) =
099852uab =…-Ma = 0.86475
JE,・・・・・・・・・・・・・・・・・・
...fl) 8°= MaX'-= 175□.

5゜△RaE=△RaJli', △Rab==, Jab
', 2Zx+zy= 30°/x-3o°X ”' =
9.91743°ab + a.

/y=3o°−zlx=30°Xyo=10.165
14゜P+l! / lz = lz'-1y = 10.16514°...
・・・・・・・・・・・・・・・・・・・・・・・・
(2) M'O = MQ
5357yl/Mac 2, 30°Na MO=-=10111uR M'M = M'O-MO= 0.34257 7a
-aC2+(MIO)2 = 2.21322JEIM
/M MN = me X ,,, = 0.44318 aN
= M'a - M'N = M'a - (M'a
=)=165311@a"-・(3) M'O NN'=2MN=0.88636.
・・・・・・・・・・・・・・・・・・・・・・・・
・・・・・・(4)l NMa = 30°・・・・・・
・・・・・・・・・・・・・・・・・・・・・Concave curve...
Song・・・・・・・・・(5)/N-Z&NM=1
80°−ZNMa−ZZ=139.83486°,,,
, , -, , (6) Explanation of usage situation 10 and %" are the ones with the largest proportional difference in the corresponding dimensions of the Koei system, which is clear if you refer to the proportionality of P in the appendix, and if tO + U and %”sa.

If you overcome this problem, all other corresponding dimensions of the Koei System can be applied.The formula for the corresponding dimensions of the 0 Koei System is: SM=0.7937
5B, B = 1 inch, which is the occupied equal fraction divided into 32 equal parts, for example, B = 12, SM = 9.53 stomach.

It is.

The dual-purpose socket wrench or spanner of the present invention is
When used on 0-to Natsuto, the contact point of the weave is at point a,
That is, since it is on the side of the nut, the nut can be used normally without slipping.

When used in the tool, this plum blossom-shaped curve is larger than the 4" nut, so the %" nut wobbles inside the tool and does not fit tightly inside the tool. The tolerance angle of rattling is twice l'i.Z3'=I
O, 165, 21', which has the largest wobbling angle of all the corresponding dimensions. Referring to the mathematical basis of the ZV angle in the table, all other dimensions ly are within 5°, so the wobbling situation is very small and does not affect the normal operation during use. If you wish in a clockwise direction, the contracted nut will come close to the left side of the hexagon. If you wish in a counterclockwise direction, it will come close to the right side of the hexagon. , 4Z=M'
Since au = 10.1651 s°, when the h'' nut receives force, the entire surface can be brought into parallel contact with the upper surface of the tool of the present invention, and the acute angle of the nut is protected from slipping. It is possible.The area that receives Natsuto's wish power is Ea x 12 x Natsu height, Ea = 0.9
9851. The total length of the contact line is BE = 0.99851X]2
=11.98207 The total length of the contact line for other dimensions is shown in the attached table. When calculated using this method, the force exerted by the unit area does not matter.

In addition, since the dual-purpose socket wrench or spanner of the present invention is designed in a hexagonal plum blossom shape, it is much stronger than a general dodecagonal one, and the usable strength is more than doubled.

Mathematical basis for looseness/y and contact line total length BM in the attached table
-BE can be said to sufficiently demonstrate the practicality of the dual-use socket wrench or spanner of the present invention.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a manufacturing example of the dual-purpose socket wrench or spanner of the present invention, Fig. 2 is a plan view of a bolt hexagonal head or nut size marking method, and Fig. 3 is a plan view of a bolt hexagonal head or nut size marking method. Alternatively, a plan view when the nut is used in a general socket wrench, Fig. 4 is a plan view explaining the theory of calculating angles, side lengths, etc. of the present invention, and Figs. 5 and 6 are diagrams showing the present invention, respectively. FIG. 7 is a plan view when used on a hexagonal head or nut of a bolt similar to that of a split torque system, and FIG. 3... Tool, 4... Hexagonal hole, 5... Hexagonal shape, 6
...Plum blossom-shaped curve Figure 1 Figure 4 Figure 5 Figure 6 Figure jlI7

Claims (1)

[Scope of Claims] (1) A tool wrench with a hexagonal plum blossom-shaped hole and a hand grip attached to the outer circumference of the hole on a concentric circle on the same plane as the hole or outside the circumference, and the hexagonal plum blossom-shaped hole The shape is a dual-purpose socket wrench or spanner (2) that can be used to turn rotating objects with hexagonal and six-sided teeth of similar dimensions, such as split-turn and English-style. By designing one angle lz above point a, we can make parallel lines or surface contact between the aa' side, Na side, or 8-dot line of the tool and the six sides of the hexagonal nut, etc. The dual-purpose socket wrench or spanner (3) according to claim 1, characterized in that the socket wrench or spanner (3) is used by rotating the hexagonal plumb-shaped hole. The hexagonal plum blossom-shaped hole of the dual-purpose socket wrench or spanner (4) according to claim 1, characterized in that it is formed on a plane perpendicular to the diameter passing through the center axis or on an arcuate swollen surface, is defined by the angle of the hole. A dual-use socket wrench or spanner according to claims 2 and 3, characterized in that the socket wrench is shaped like an arc to protect the tool and the nut when applying force.