JP3027815U - Bolts that can be rotated with various hand tools - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a bolt that can be rotated by various hand tools. A head is provided in a substantially elliptical shape and can be rotated by a spanner having openings of various different sizes due to a difference in distance between tangents of arcs of the ellipse. Since a plum blossom-shaped recess is provided on the upper surface and the space between the petals of the plum blossom is flat, a plum blossom hexagon spanner or a hexagon spanner can be inserted into the plum blossom depression and rotated. In this way, it is said that a single bolt can be turned with many types of hand tools.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a kind of multi-hand tool rotatable bolt that can be turned with different sizes and types of hand tools.

[0002]

[Prior art]

 The method most commonly used for fastening and connecting in daily life is to use screw parts, and the strength of these screw parts is determined by the shape of the head. In general, a screwdriver is equipped with a round head with a minus (-) or plus (+) groove on the top surface and has relatively low mechanical strength, so it is often used for home appliances. ing. Bolts with hexagonal flat heads or recessed holes are used in various machines, automobiles, motorcycles, etc. because of their relatively high mechanical strength. There are various tools such as opening spanner, sleeve spanner, fixed spanner, hexagon spanner, plum blossom hexagon spanner, and their standards are naturally diversified according to the size of the bolt, and also due to the difference between the metric system and the inch system. Diversified. Therefore, certain standard hand tools were used to turn single-dimension bolts, which did not reduce the useful life of the bolt.

When the bolt is rotated with a spanner, a certain proportional gap exists between the two so that the bolt head and the spanner opening can be easily fitted to each other. The two application points come into contact with each other and are located in the tangent part of the bolt head. Therefore, when fitting the spanner and the bolt head, it was necessary to fit them so that the above gap was constant. In addition, the applied spanners differ depending on the difference in the arc of the bolt head, so the types of spanners were increased.

[0004] Generally, problems that occur when turning bolts are that the hand tools are not adaptable, and that the dimensions of the hand tools do not match. Therefore, it is necessary to understand the type of the tool first. Yes, and it was necessary to select and use different sizes many times, which was inconvenient and troublesome. Therefore, hand tools of different types and structures have been developed, and the bolt head dimensions have been standardized, but bolts that can be turned by various types of hand tools of different dimensions have not been developed.

[0005]

[Problems to be solved by the device]

 The present invention is a kind of various hand tools that can be turned with different-sized opening spanners, select the required opening spanner within the range of user's visual observation, and have the convenience of turning bolts. An object of the present invention is to provide a bolt that can be rotated by.

[0006]

[Means for Solving the Problems]

 According to the invention of claim 1, the bolt head is provided in a substantially elliptical shape in a plan view, and the bolt head can be turned by a spanner having openings of different sizes depending on the difference in the distance between the tangents of the arc of the ellipse. A plum blossom-shaped recess was provided on the upper surface, and the plum blossom-shaped petals were flat, so that a plum blossom hexagon spanner or hexagonal spanner could be inserted into the plum blossom-shaped depression for rotation. It is characterized by that.

According to the second aspect of the present invention, the bolt head of the bolt that can be rotated by the various hand tools is formed in a polygonal shape in a plan view.

[0008]

[Embodiment of device]

 The bolt of the present invention is a kind of bolt that can be rotated by various kinds of hand tools, has a substantially elliptical head portion, and has different sizes due to the difference in the distance between the tangents of the arc of the ellipse. It is supposed to be able to be rotated in combination with a spanner equipped with an opening, and in addition, a plum blossom-shaped recess is provided on the upper surface of the head, and the plum blossom-shaped petals are straightened, so that the plum blossom A hexagonal wrench or a hexagonal wrench can be inserted into the umebana-shaped recess and can be rotated. Thus, even though it is a single bolt, it can be rotated with many types of hand tools. It has been applied to connecting and fixing work using, and is considered to be more practical.

[0009]

【Example】

 1 and 2 show a bolt which can be rotated by various hand tools according to the present invention, in which the head 11 of the bolt 1 is provided in an elliptical shape, and is different due to the difference between the elliptic arc tangents. It can be turned with a sized spanner 2. In FIG. 2, four different sizes of standard dimensions A, B, C and D are shown. In addition, a concave hole 12 having a plum blossom-shaped outer periphery 121 is formed on the upper surface of the bolt 1, and the plum blossom-shaped petals are connected to each other by a straight portion 122, and the concave hole 12 has a plum blossom hexagonal shape. By inserting the wrench 3 or the hexagonal wrench 4, the bolt 1 can be turned. As shown in FIGS. 7 and 8, a single bolt 1 can be turned by a multi-type hand tool having different sizes. Achieve the purpose of

It should be noted that the present invention employs an elliptical head, which can be rotated by opening spanners having different standard sizes due to the difference in the distance between the two tangents of the ellipse. In view of the fact that the outer side of the plum blossom hexagonal wrench 3 is arcuate and the outer periphery of the hexagonal wrench 4 is composed of a straight line, one concave hole 12 can accommodate these two types of spanners. That is what is being done. It should be noted that the recessed hole of the bolt head may be a hexagon dedicated to a hexagon spanner as shown in FIGS. 3 to 5. Further, the present invention may be in the form of the stud 5, and may be provided with a plum blossom-shaped or hexagonal recess 51. Moreover, as shown in FIG. 10, the above-mentioned bolt head may be replaced with an elliptical shape to a polygonal shape, which is another preferred embodiment of the present invention.

[0011]

[Effect of device]

 The bolt of the present invention has a substantially elliptical head portion, and can be rotated by a spanner having various sizes of openings due to the difference in the distance between the tangents of the arc of the ellipse. Since a plum blossom-shaped recess is provided on the upper surface of the head and the plum blossom-shaped petals are flat, a plum blossom hexagon spanner or a hexagon spanner can be inserted into the plum blossom recess and rotated. It is said that it can be turned with many kinds of hand tools even though it is a single bolt, which is very practical.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a plan view showing a combination of opening spanners having different dimensions from the present invention.

FIG. 3 is a perspective view of an embodiment provided with a hexagonal recess according to the present invention.

FIG. 4 is a plan view of the embodiment of FIG.

5 is a cross-sectional view of the embodiment of FIG.

FIG. 6 is a perspective view of an embodiment in which the present invention is used as a stud.

FIG. 7 is a perspective view showing a combination of the present invention and a hexagon wrench.

FIG. 8 is a perspective view showing a combination of the present invention and a plum blossom hexagon spanner.

FIG. 9 is a cross-sectional view showing a combined state of the present invention and a plum blossom hexagon wrench.

FIG. 10 is a plan view of a polygonal embodiment of the present invention.

[Explanation of symbols]

1 ... Bolt 11 ... Head 2 ... Opening wrench 121 ... Plum blossom-shaped outer periphery 12 ... Recessed hole 122 ...
・ ・ Flat straight part 3 ・ ・ ・ Plum blossom hexagon spanner 4 ・ ・ ・ Hexagon spanner 5 ・ ・
・ Implant bolt 51 ・ ・ ・ Hexagonal concave hole

Claims (2)

[Scope of utility model registration request] 1. A bolt head is provided in a substantially elliptical shape in a plan view, and can be rotated by a spanner having openings of different sizes due to a difference in distance between tangents of arcs of the ellipse. A umebana-shaped recess is provided in the umebana, and the space between the umebana-shaped petals is made straight, and a umebana hexagonal wrench or a hexagonal wrench can be inserted into the umebana-shaped recess and rotated. Bolts that can be rotated with hand tools. 2. The bolt which can be rotated by various hand tools according to claim 1, wherein the bolt head is formed in a polygonal shape in a plan view.