CN107305109A

CN107305109A - Multiple laborsaving bow

Info

Publication number: CN107305109A
Application number: CN201610261808.4A
Authority: CN
Inventors: 李少春
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-18
Filing date: 2016-04-18
Publication date: 2017-10-31

Abstract

It is a kind of it is new can launch the laborsaving bow and crossbow device of multiple bow and arrow simultaneously, by elastomeric material, elastic rope, with cogged spiral arm, ratchet structure, connecting rod, size handle pushes away the part such as arrow device and bent body composition.In structure, the preposition arm structure above and below bent body, formation of potential energy storage structure, upper lower rotatory arm is driven by gear synchronous, and bowstring is then substituted by connecting rod.During operation, user pulls open the handle depended on upper lower rotatory arm, forms the larger arm of force, presses spiral arm, and the internal ratchet device of bent body then ensures that this process is smoothly implemented.Bow and arrow also can supply arrow by arrow casket.

Description

Multiple laborsaving bow

Art

The present invention new can launch the laborsaving bow and crossbow device of multiple bow and arrow simultaneously for one, it is adaptable to hunt and recreation and body-building in field.

Background technology

At present, the main labor-saving structure of bow and crossbow is double acting pulley labor-saving structure, and its advantage is to can obtain largely laborsaving when pulling the bow, but has due to its architectural characteristic, during release a certain proportion of kinetic energy rejection.The present invention is preposition at bent body by the structure for storing potential energy relative to conventional composite bow, the structure of lower rotatory arm is generated immediately, while there is synchromesh gear to make lower rotatory arm synchronous axial system between upper lower rotatory arm.

The content of the invention

The structure that the present invention will store potential energy due to taking is preposition and the design that is connected between upper lower rotatory arm.

The technical solution adopted for the present invention to solve the technical problems is：The structure of storage potential energy is connected between lower rotatory arm, and upper lower rotatory arm relies on the synchromesh gear synchronous axial system of its end, and bowstring is then substituted by connecting rod.At the same time, ratchet device can be increased between gear structure, when pulling the bow, operator pulls open the handle depended on upper lower rotatory arm, form the larger arm of force, spiral arm is pressed, ratchet device then ensures that this process is smoothly implemented, the elastic rope depended on bow will then push away the parallel position that arrow device is remained at and bent low.

Brief description of the drawings

The present invention is further described with reference to the accompanying drawings and examples.

Fig. 1 is the structure chart of the present invention.

The arrow casket that Fig. 2 is the present invention supplies arrow schematic diagram.

1. elastomeric material in Fig. 1,2. upper connecting rods, 3. elastic ropes, small handle on 4., 5. push away arrow device, 6. right bent body, 7. lower rotatory arms, big handle under 8..

1. supply arrow impeller, 2. gear a, 3. gear b, 4. arrow casket shells, 5. bows and arrows in Fig. 2.

Embodiment

During operation, user first by bow and arrow simultaneously take in push away arrow device and bent body both sides on, bow is pulled open certain angle by the small handle depended on afterwards on upper and lower strut, next pulls open the big handle depended on lower rotatory arm, the big handle of lower end is placed on the ground, the big handle of upper end is then pulled down by user, and the ratchet device inside bent body then ensures that this process is smoothly implemented (ratchet structure in Fig. 1 inside dotted line frame to omit).After bow pulls open certain angle, then lift bent body, big handle now drives self-return by spring up and down.Last run-home, discharges ratchet structure, if Heavenly Stems and Earthly Branches bow and arrow will be pushed away the drive of arrow device, homed on its target simultaneously.

Because bow and arrow to be launched in the present invention is respectively placed in bent body both sides, so the present invention also arrow casket can be used to supply arrow.When supplying arrow bow and arrow using arrow casket, after full gate bow, according to the drive mechanism of setting, then band moving gear a rotates a bit of angle together by band moving gear b, gear b, and the confession arrow impeller being connected with gear b then puts down a bow and arrow and falls within the arrow breath of bent body both sides and push away on arrow device.

Separately it should be noted, Fig. 1 opens the structure chart after left bent body for the present invention.

Upper and lower strut is with pushing away between arrow device as bearing arrangement and pushing away arrow device the position for making it remain parallel with bent body is affected by elastic rope.

Engagement between gear a and gear b is similar to after the gear engagement in bicycle freewheel, gear b bands moving gear a will be by springs return origin-location, and now gear b will not be driven, and be ready for next bow and arrow of release.

Pushed away to avoid user from being unintentionally placed on finger before arrow device, wisp pulls dynamic connecting rod above and below use of the present invention, and its it is more difficult pull open, the diameter for pushing away arrow device is then set to larger numerical value.

Claims

1. a kind of multiple laborsaving bow and crossbow device, including elastomeric material, with cogged spiral arm, ratchet structure, connecting rod, elastic rope, Size handle, pushes away arrow device and bent body etc..It is characterized in that：In structure, potential energy storage structure is preposition in backspin on bent body, formation Arm configuration, upper lower rotatory arm is driven by gear synchronous, and bowstring is then substituted by connecting rod.

2. laborsaving bow according to claim 1, it is characterized in that：The end of upper lower rotatory arm is to make the gear structure of its synchronous axial system.

3. bow and crossbow device according to claim 1, it is characterized in that：Depended in rigidity on lower rotatory arm for increasing the arm of force and caning oneself The dynamic handle withdrawn.

4. laborsaving bow according to claim 1, it is characterized in that：Connecting rod instead of bowstring.

5. bow and crossbow device according to claim 1, it is characterized in that：Dynamic connecting rod is pulled using the wisp that can be automatically retracted.

6. bow and crossbow device according to claim 1, it is characterized in that：It is that bearing is combined that arrow device, which is pushed away, with upper and lower strut junction, is used for Promote bow and arrow.

7. bow and crossbow device according to claim 1, it is characterized in that：Push away arrow device and affected by depending on the elastic rope on bent body, made It keeps the parallel position with bent body.

8. bow and crossbow device according to claim 1, it is characterized in that：In use, branched bow and arrow take in bent body both sides arrow breath at and Push away on arrow device.

9. bow and crossbow device according to claim 1, it is characterized in that：Bow and arrow also can supply arrow by arrow casket, main by two for arrow system Axial meshed gears and confession arrow impeller composition.