CN2294084Y

CN2294084Y - Boomerang having saw-tooth like head

Info

Publication number: CN2294084Y
Application number: CN 97203421
Authority: CN
Inventors: 吕国辉; 颜金台
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-15
Filing date: 1997-04-15
Publication date: 1998-10-14
Anticipated expiration: 2007-04-15

Abstract

The utility model relates to a boomerang having a saw-tooth boomerang head, which can avoid frontal impact of a boomerang head and a boomerang target clamping post, and has firm clamping and good service performance. The utility model is composed of a boomerang head, a boomerang post and a screw connection joint, wherein both the front and the rear ends of the boomerang post are respectively provided with a stud and a boomerang empennage, both the front and the rear ends of the screw connection joint are respectively provided with a front and a back screw holes, and the boomerang head is made of flexible material and formed by joining a cylindrical section, a conical section and a stud section orderly. The stud section on the boomerang head is in screw connection with the front screw hole of the screw connection joint, and a plurality of axial notches and a plurality of saw-tooth rings are uniformly arranged on the periphery of the cylindrical section orderly from front to back.

Description

Dartlike weapon with sawtooth boomerang head

The utility model belongs to motion, amusement, games, particularly a kind of dartlike weapon with sawtooth boomerang head.

Dartlike weapon is a lot of with the combination kenel kind of dartboard, and the most traditional employed dartlike weapon lies in the dartlike weapon front end and is fixed with metal prong boomerang head, carries out throwing game with the dartboard that uses it to cooperate to be made by cork; Or as shown in Figure 1 and Figure 2, being fixed with long column shape or short taper profile boomerang head through connector at the front end that darts, dartlike weapon cooperates folder post dartboard to carry out throwing game with boomerang head on it.Press from both sides the closeer dartboard of post distribution with dartlike weapon cooperation as shown in Figure 1 and carry out throwing game, and provide dartlike weapon counterweight effect by connector with long column shape boomerang head.And cooperate the thin dartboard of folder post distribution to carry out throwing game, and with the folder post urgent clamping of the coarse embossing face that is arranged on the connector surface with dartboard with dartlike weapon as shown in Figure 2 with short taper profile boomerang head.The dartlike weapon of this structure is when carrying out throwing game, not only very easily the dartlike weapon bounce-back is outer to fall because of boomerang head and the positive bump of folder post cause, even the folder post on the dartboard is fractureed, and because in throwing game, the boomerang head of dartlike weapon and connector thereof and dartboard press from both sides the friction that repeats of post, influence and press from both sides the clamping effect of post on the dartboard the boomerang head, dartlike weapon is come off because of the dartboard vibrations, promptly often take place to shake because of the dartlike weapon that the throwing vibrations of dartlike weapon for the second time will have been hit the first time, score is obscured, had a strong impact on darts score result.

The purpose of this utility model provides a kind of boomerang dart head and dartboard can avoided and presss from both sides the dartlike weapon with sawtooth boomerang head that clash in the post front, clamping is firm, serviceability is good.

The utility model is made up of boomerang post, connector and boomerang head, and boomerang post front end is provided with double-screw bolt, and its rear end is provided with the dartlike weapon empennage; The front and back ends of connector is provided with forward and backward screwed hole, and the double-screw bolt of screwed hole and boomerang post front end screws togather thereafter; The boomerang head is made by soft material, and is formed by cylindrical section, conical section and the linking of double-screw bolt section successively, and the preceding thread hole of its upper stud section and connector screws togather, and the cylindrical section periphery is all established a plurality of axial notches and complex trace zigzag ring gear in the past backward successively.

Because the utility model is made up of boomerang post, connector and the boomerang head that front and back ends is respectively equipped with forward and backward screw that front and back ends is respectively equipped with double-screw bolt and dartlike weapon empennage, the boomerang head is made by soft material, and form by cylindrical section, conical section and the linking of double-screw bolt section successively, the preceding thread hole of its upper stud section and connector screws togather, and the cylindrical section periphery is all established a plurality of axial notches and complex trace saw-tooth ring in the past backward successively.When cooperating folder post dartboard to carry out throwing game with the utility model, when a plurality of axial notches of boomerang head cylindrical section periphery make dartlike weapon hit dartboard, can import the folder post of dartboard automatically, and with being the perverse shape friction of sour jujube of folder post of the complex trace saw-tooth ring of boomerang head cylindrical section periphery and dartboard and make the folder post on the dartboard will dart firm clamping, make and dart not the reason vibrations and come off, can not only avoid the positive bump of boomerang dart head and dartboard folder post, and clamping is firm, serviceability is good, thereby reach the purpose of this utility model.

Fig. 1, structural representation stereogram with long column shape boomerang head dartlike weapon for commonly using.

Fig. 2, structural representation stereogram with short taper profile boomerang head dartlike weapon for commonly using.

Fig. 3, be the utility model embodiment one decomposition texture schematic isometric.

Fig. 4, be the utility model embodiment one structural representation stereogram.

Fig. 5, be the utility model embodiment one partial structurtes constructed profile.

Fig. 6, be the utility model embodiment two decomposition texture schematic isometric.

Fig. 7, be the utility model embodiment two structural representation stereograms.

Fig. 8, be the utility model embodiment two partial structurtes constructed profiles

Fig. 9, be the A-A profile (having three axial notches) among Fig. 5, Fig. 8.

Figure 10, be the A-A profile (having four axial notches) among Fig. 5, Fig. 8.

Figure 11, be the local enlarged diagram of B portion among Fig. 5, Fig. 8.

Figure 12, the folder post when hitting dartboard for the utility model on the dartboard will be held view with the utility model boomerang head-clamp.

Below in conjunction with accompanying drawing the utility model is further elaborated.

Embodiment one

As shown in Figure 3, Figure 4, the utility model is made up of boomerang post 1, connector 2 and boomerang head 3, and boomerang post 1 front end is provided with double-screw bolt 11, and its rear end is provided with dartlike weapon empennage 12; Connector 2 is made of such as copper by metal material, and its front and back ends is provided with forward and backward screwed hole 21,22, and screwed hole 22 screws togather with the double-screw bolt 11 of boomerang post 1 front end thereafter, and its outer surface is provided with coarse embossing 23; As shown in Figure 5, boomerang head 3 is by soft material, make as rubber or plastic cement etc., and form by cylindrical section 31, conical section 32 and 33 linkings of double-screw bolt section successively, its upper stud section 33 screws togather with the preceding thread hole 21 of connector 2, cylindrical section 31 peripheries are all established a plurality of axial notches 311 and complex trace saw-tooth ring 312 in the past backward successively, as shown in Figure 9, can establish three axial notches 311 at cylindrical section 31, also can be as shown in figure 10, all establish four axial notches 311 at cylindrical section 31, the cross section of axial notch 311 is circular-arc, its degree of depth by the termination to the middle part shape that tapers off; As shown in figure 11, the interface 313 of adjacent saw-tooth ring 312 is the arc surface of indent.

Embodiment two

As Fig. 6, shown in Figure 7, the utility model is made up of boomerang post 1, connector 2 and boomerang head 4, and boomerang post 1 front end is provided with double-screw bolt 11, and its rear end is provided with dartlike weapon empennage 12; Connector 2 is made of such as copper by metal material, and its front and back ends is provided with forward and backward screwed hole 21,22, and screwed hole 22 screws togather with the double-screw bolt 11 of boomerang post 1 front end thereafter, and its outer surface is provided with coarse embossing 23; Boomerang head 4 is combined by hard inner prop 41 and soft overcoat 42, and inner prop 41 is formed by cylindrical section 411, conical section 412 and 413 linkings of double-screw bolt section successively, and its upper stud section 413 screws togather with the preceding thread hole 21 of connector 2; Overcoat 42 is made by materials such as rubber or plastic cement, as shown in Figure 8, overcoat 42 has and the cylindrical section 411 of inner prop 41 and the central blind hole 421 of conical section 412 tablings, before it, cylindrical section 422 and the conical section 423 of rear end periphery for being connected, its cylindrical section 422 peripheries are all established a plurality of axial notches 424 and complex trace saw-tooth ring 425 in the past backward successively, as shown in Figure 9, can establish three axial notches 424 in cylindrical section 422 peripheries, also can be as shown in figure 10, all establish four axial notches 424 in cylindrical section 422 peripheries, the cross section of axial notch 424 is circular-arc, its degree of depth by the termination to the middle part shape that tapers off; As shown in figure 11, the interface 426 of adjacent saw-tooth ring 425 is the arc surface of indent.

As shown in figure 12, when cooperate folder post dartboard 5 to carry out throwing game when hitting dartboard with the utility model, cylindrical section 31 with boomerang head 3, the complex trace saw-tooth ring 312 of cylindrical section 422 peripheries of boomerang head 4 overcoats 42 or 425 and the folder post 51 of dartboard 5 be the perverse shape friction of sour jujube inlay card, make folder post 51 on the dartboard 5 with the firm clamping of the utility model.

Claims

1, a kind of dartlike weapon with sawtooth boomerang head, it is made up of boomerang post, connector and boomerang head, and boomerang post front end is provided with double-screw bolt, and its rear end is provided with the dartlike weapon empennage; The front and back ends of connector is provided with forward and backward screwed hole, thereafter the double-screw bolt of screwed hole and boomerang post front end screws togather, it is characterized in that being that described boomerang head made by soft material, and form by cylindrical section, conical section and the linking of double-screw bolt section successively, the preceding thread hole of its upper stud section and connector screws togather, and the cylindrical section periphery is all established a plurality of axial notches and complex trace zigzag ring gear in the past backward successively.

2, a kind of dartlike weapon with sawtooth boomerang head, it is made up of boomerang post, connector and boomerang head, and boomerang post front end is provided with double-screw bolt, and its rear end is provided with the dartlike weapon empennage; The front and back ends of connector is provided with forward and backward screwed hole, thereafter the double-screw bolt of screwed hole and boomerang post front end screws togather, it is characterized in that described boomerang head is combined by hard inner prop and soft overcoat, inner prop is formed by cylindrical section, conical section and the linking of double-screw bolt section successively, and the preceding thread hole of its upper stud section and connector screws togather; Overcoat has and the cylindrical section of inner prop and the central blind hole of conical section tabling, and cylindrical section and the conical section of its front and back ends periphery for being connected, its cylindrical section periphery are all established a plurality of axial notches and complex trace saw-tooth ring in the past backward successively.

3, the dartlike weapon with sawtooth boomerang head according to claim 1 and 2 is characterized in that the cross section of described axial notch is circular-arc.

4, the dartlike weapon with sawtooth boomerang head according to claim 1 and 2, the degree of depth that it is characterized in that described axial notch by the termination to the middle part shape that tapers off.

5, the dartlike weapon with sawtooth boomerang head according to claim 1 and 2 is characterized in that the interface of described adjacent zigzag ring gear is the arc surface of indent.