CN2165402Y

CN2165402Y - String and safety device for crossbow

Info

Publication number: CN2165402Y
Application number: CN 93211725
Authority: CN
Inventors: 游侯雪
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-01
Filing date: 1993-05-01
Publication date: 1994-05-18
Anticipated expiration: 2003-05-01

Abstract

The utility model provides a string and safety device for crossbow. Both sides of the crossbow body are provided with a sliding chute and are sheathed with a draw rod. A neck of hook is formed by convexly extending one end of the draw rod upwards so that a bowstring is hooked. The bowstring is drawn to a clamping groove arranged at the rear end of the sliding chute along the sliding chute. The other end of the draw rod is pivoted at the front end side of the handle. The lower end of the handle is connected with the crossbow handle, and the upper end surface of the handle is provided with a spring which is used for underpropping a buckle block. The buckle block can fasten or separate from the round bar of the crossbow body. The upper end of the fusible link pivoted at the rear side of the clamping groove is pushed and reclines when the handle is pressed downwards and the string is backwards drawn to the clamping groove for positioning, and the string is drawn to the lower end and inclined forwards so that a trigger is held up and a state of closing safety is formed. The safety can be opened by that a convex prill arranged on one side of the fusible link is able to move after the handle is pushed backwards and combined. The string is convenient and labor saving, and the string can also automatically close the safety.

Description

String and safety device for crossbow

A kind of pull string crossbow and safeties, main system draws at crossbow that string is provided convenience, laborsaving effect, and in drawing string can finish the action of safe-on simultaneously in the lump automatically, reaches the substantial function person that safety saves trouble.

Crossbow is the synthesis of a kind of bow and arrow and pistol, itself and bow and arrow same tie are utilized the tension of arrow string and arrow are vowed that brute force launches away, but it but is to be controlled by trigger as pistol that the button that arrow is vowed is put, and the also similar pistol of its shooting aiming main points is so the crossbow body of crossbow in fact promptly is the synthesis of bow and arrow and pistol; The thing that this kind can have lethality is also early made the instrument of hunting of being used for by the mankind, but its major part all is to spread between the native tribe of backwardness using, not general, only it greatly is in fashion the instrument that becomes amusement and recreation and motion in today, and having its own attractive part is need not go into the details; And the crossbow structure of present finding as shown in Figure 5, end is consolidated with bow 51 and string 52 before crossbow body 5, and end is combined with sighting device 54 on the rear end pikestaff 53, these sighting device 54 both sides combine and form a slideway with stator 55 with pikestaff 53, can therebetween slide for a U shape pull bar 56, and 56 liang of front end bars of U shape pull bar are to being extended with hook portion 561, string 52 post-tensionings to draw-in groove 57 can be caught on, cooperate shown in Figure 6, this is positioned at trigger 58 lamellar bodies and slightly disposes a bumper bar 59 in draw-in groove 57 rears of top, and its front end has a notch 591, when string 52 is pulled to draw-in groove 57 location, can hand push top bumper bar 59 forward, it is possible to make bumper bar 59 upper ends stop that string 52 makes progress, hold then to prop up on trigger 58 lamellar bodies under the bar on the other hand and hold, make it can't when pulloff 58, go up top chord 52, this kind structural design is quite required great effort when operation, must use both hands and feet, promptly slam the set pedal 50 in crossbow body 5 front lower places with pin, post-tensioning pull bar 56 firmly then, string 52 is pulled to draw-in groove 57 positions, push back pull bar 56 again in original position, bumper bar 59 pushed to and close insure, again arrow is vowed and insert the upper end slideway and be compressing tablet 541 location, post-tensioning bumper bar 59 and open insurance then, aimed fire again, in fact this kind structure and mode of operation disadvantage are to be to draw string 52 quite to require great effort, and must use both hands and feet, and pull bar 56 draw string 52 must have suitable arm strength can not, the particularly general weak at all operation of women; Still must closing after drawing string 52 to finish on the other hand insures lays out the arrow arrow again, the not only tired lock of this action but also ignore easily or forget, and this kind carelessness is maximum danger for security, because the arrow arrow of putting before aiming is insured if be not related to, tightened string this moment, careless slightly operation promptly may trigger and penetrate, and aforementioned structure obviously can't provide good processing safety and convenience, remains in fact to be improved.

Main purpose of the present utility model is a kind of pull string crossbow and safeties, and it can be made as the crossbow body structure than the labour-saving and draw string, and closes automatically in the lump when drawing string to finish and insure, and makes more convenient operation, safety.

For achieving the above object, the utility model provides a kind of pull string crossbow and safeties, lie in fixing bow of crossbow body front end and string, the string draw-in groove to the crossbow body that can be pulled, vow that in inserting arrow the back is pulled the trigger with trigger, wherein: chute is offered in crossbow body both sides, the then sheathed pull bar of this chute, and pull bar one end has protruding grain and can snap in chute, this end also upwards protrudes out the neck of hook and can collude and draw string to draw-in groove, again the pull bar other end also have hook portion and be hubbed at one draw before distolateral, this draws rough L-shaped, and lower end and crossbow be articulating, and the upper surface button piece that is pivoted, this button piece one end below is established spring and is shored, the other end then form grab can with a round bar hook or a disengaging on the crossbow body; The crossbow body is in the draw-in groove rear side safety plate that is pivoted again, and this safety plate lower end is with respect on the trigger upper piece, and its sheet side has a protruding grain, and the upper end can be the two draw-in groove fastenings that shell fragment formed under the sighting device.

The utility model can reach practical function convenient, laborsaving and automatic safe-on.

Be feature that can darker understanding the utility model, now in conjunction with the accompanying drawings, it is as follows to describe structure of the present utility model, function, purpose and operational scenario in detail:

Fig. 1 is the structural representation of the utility model when not drawing string;

Fig. 2 is the action schematic diagram of the utility model when drawing string;

Fig. 3 is the structural perspective of the utility model pull bar;

Fig. 4 is the utility model safeties structure and action enlarged diagram;

Fig. 5 is the floor map of the structure used always;

Fig. 6 is the action schematic diagram of safeties commonly used.

See also shown in Fig. 1 to 3, the crossbow body 1 of the utility model is consolidated with bow 11 and string 12 equally in forward end, and offer chute 13 in crossbow body 1 both sides thereafter, 13 sheathed pull bars 2 of this chute, and pull bar 2 has protruding grain 21 and can snap in outside the chute 13, this end also upwards protrudes out the neck of hook 22 and can catch on bowstring 12, be pulled to the draw-in groove 14 of crossbow body 1 rear end along chute 13 and catch on the location, pull bar 2 other ends also have hook portion 23 and are hubbed at one and draw distolateral before 3 again, this draws 3 rough L-shaped, lower end and crossbow articulate 15, and the upper surface be pivoted one the button piece 31, this button piece 31 1 ends below is established spring 32 and is shored, the other end then form grab 33 can with a round bar 16 hooks or disengaging on the crossbow body 1; Crossbow body 1 is in the draw-in groove 14 rear sides safety plate 4 that is pivoted again, and these safety plate 4 lower ends are with respect on trigger 17 upper pieces, and its sheet side has a protruding grain 41, and the upper end can be 181,182 fastenings of two draw-in grooves that shell fragment 18 is formed under the sighting device.

Cooperate shown in Figure 4, structure of the present utility model need not be used both hands and feet when operation, only need both hands for it, wherein grip crossbow body 1 preceding lower end on the other hand, another hand then presses button piece 31 makes grab 33 break away from round bar 16, and press down draw 3 make its below with the pivoting point of crossbow body 1 for axle priming pull bar 2 along chutes 13 with string 12 post-tensionings to draw-in groove 14 location, be pulled to the location simultaneously at this string 12, safety plate 4 upper ends that these draw-in groove 14 rear sides are pivoted can be by string 12 touching pushing tows and the card entry slot 182 of swinging back, and cause the lower end to lean forward and make trigger 17 upper ends and form the safe-on state; Make pull bar 2 be back to the location and will draw to push back 3, and grab 33 overlines are with after round bar 16 combines, then the protruding grain 41 that moves safety plate 4 one sides with hand push makes no longer blocking trigger 17 of safety plate 4 lower ends, and the upper end is out safety position and is able to follow-up aimed fire person in the normality position of going into draw-in groove 181.

Operation about aforementioned crossbow structure, people can recognize easily, by pull bar 2 and draw link-type to be pulled 3, and draw 3 belows and crossbow body 1 be articulated in to draw and be the lever force-saving effect of fulcrum in string 12 processes, be that commonly used crossbow institute is inaccessible, the utility model does not need to slam crossbow body 1 front end with pin, draws string 12 arduously with hand again, and this belongs to important and upward important breakthrough of operation for general women is outstanding; Moreover the utility model was passed safety plate 4 dexterously and is closed automatically and insure in the while of drawing string 12 to finish, and accomplished without any letup especially, need not as the dust head still many one formalities come safe-on, guaranteeing to go up and really belong to desirable person with regard to simplified control or security.

To sum up, the utility model draws the improvement of string and safeties, for provide be strictly on rapid operation, simplification and the safe effectiveness out of the ordinary, its practicality and progressive as described above, when more promoting effect than the dust head and reaching the intended purposes of utility model.

Claims

A kind of pull string crossbow and safeties, lie in fixing bow of crossbow body front end and string, the string draw-in groove to the crossbow body that can be pulled, vow that in inserting arrow the back is pulled the trigger with trigger, it is characterized in that: chute is offered in crossbow body both sides, the then sheathed pull bar of this chute, and pull bar one end has protruding grain and can snap in chute, this end also upwards protrudes out the neck of hook and can collude and draw string to draw-in groove, again the pull bar other end also have hook portion and be hubbed at one draw before distolateral, this draws rough L-shaped, lower end and crossbow are articulating, and the upper surface button piece that is pivoted is established spring below this button piece one end to shore, the other end then form grab can with a round bar hook or a disengaging on the crossbow body; The crossbow body is in the draw-in groove rear side safety plate that is pivoted again, and this safety plate lower end is with respect on the trigger upper piece, and its sheet side has a protruding grain, and the upper end can be the two draw-in groove fastenings that shell fragment formed under the sighting device.