Abstract: An anti dry fire trigger device contains: a holder, a fixer, a string hook, a connection trigger, a safety switch, and an engagement element. The holder includes a channel, a slidable actuation element, and an accommodation groove having two defining orifices. The fixer includes a push portion, a limitation portion, and a first rotatable coupling portion. The string hook includes a hooking portion, an abutting portion, and a second rotatable coupling portion. The connection trigger rotatably includes a fastening portion and a driving portion. The safety switch slidably includes two slidable posts configured to limit the safety switch on an opening position and a closing position. The engagement element slidably is connected with the safety switch and includes a defined portion.

Abstract: An anti-dry fire trigger device contains: a trigger seat, an arrow retainer, a string hook, a connection trigger, a safety switch, and an engagement element. The trigger seat includes a channel, a slidable actuation element, and an accommodation groove having two defining orifices. The arrow retainer includes a press portion, a limitation portion, and a first rotatable connection portion. The string hook includes a hooking portion, an abutting portion, and a second rotatable coupling portion. The connection trigger rotatably includes a fastening portion and a driving portion. The safety switch slidably includes two slidable posts configured to limit the safety switch on an opening position and a closing position. The engagement element slidably is connected with the safety switch and includes a defined portion.

Abstract: A trigger reset device contains: a trigger seat, a drive element, a button, and an engagement switch. The trigger seat includes a channel, a string hook, a movable safety switch movably switched between an opening position and a closing position. The trigger seat includes a connection trigger, a receiving groove and a coupling trench, and the receiving groove has a lifting means. The drive element includes a slot and a controlled unit. The button includes a slidable sleeve portion. The engagement switch is rotatably accommodated in the coupling trench and includes a locating portion and a fifth spring defined between the engagement switch and the trigger seat, hence the spring abuts against the engagement switch so that the drive element is stopped by the locating portion of the engagement switch in the normal state and the button does not move to actuate the drive element to move.

Abstract: A cable slide structure of a crossbow, wherein the crossbow contains a crossbow body, a bow limb assembly, two pulley assemblies, a bowstring, two auxiliary strings, and a cable slide. The crossbow body includes a holder and a slot, and the bow limb assembly is fixed on the crossbow body. The two pulley assemblies are connected to two edges of the bow limb assembly, and two ends of the bowstring are connected with the two pulley assemblies. Each of the two auxiliary strings includes a first connection segment formed on a first end thereof, and each of the two auxiliary strings includes a second connection segment formed on a second end thereof. Two first connection segments of the two auxiliary strings are connected with the two pulley assemblies. The cable slide is slidably received in the slot and includes two opposite first fixing portions and two opposite second fixing portions.

Abstract: A collapsible pedal structure of a crossbow is mounted on the crossbow, the crossbow includes a bowstring and a string pulling direction, and the collapsible pedal structure contains a pedal, a connection member, and a fastener. The pedal includes a stepping portion and a first coupling seat. The connection member includes a second coupling seat configured to rotatably connect the connection member with the first coupling seat of the pedal so that the pedal rotates in a first direction and a second direction. The fastener includes an aperture configured to receive a defining rod, a releasing means, and a fastening means. The fastening means is configured to fix the pedal in the first direction and the second direction, and the releasing means is configured to release the fastening means.

Abstract: A string pulling mechanism includes a rolling assembly, a rotary shaft, a unidirectional bearing, two rollers, a switch, and a swing lever. The holder has a first accommodation portion, an opening, and a first coupling orifice. The unidirectional bearing includes an internal ring and an external ring having multiple teeth, the two rollers are fixed on the rotary shaft, and the switch is inserted to the opening of the rolling assembly and is rotatably connected with the rolling assembly. The switch is received into the opening so as to control the external ring to rotate or not rotate. The swing lever disposed on a side of the rolling assembly to actuate the rotary shaft, the internal ring of the unidirectional bearing, and the two rollers to rotate. The string is fixed on the two rollers and are inserted through and connected with a pull seat.

Abstract: In trigger labor-saving structure of a crossbow, the crossbow includes a body, an arcuate limb, and a trigger assembly. The limb is mounted adjacent to a front end of the body and intersects with the body, and the limb includes a bowstring. The trigger assembly includes: a trigger seat arranged on the body, a trigger partially accommodated in the trigger seat and downward extending out of the trigger seat, with the trigger having a stop face; a string hook member housed in the trigger seat and including an engagement face corresponding to the stop face; and at least one concave portion formed on the engagement face of the string hook member and defined between a first periphery and a second periphery of the engagement face. Thus, frictional resistance between the stop face and the engagement face reduces.

Abstract: In a trigger labor-saving structure of a crossbow, the crossbow includes a body, an arcuate limb, and a trigger assembly. The limb is mounted adjacent to a front end of the body and intersects with the body, and the limb includes a bowstring. The trigger assembly includes: a trigger seat arranged on the body, a trigger partially accommodated in the trigger seat and downward extending out of the trigger seat, with the trigger having a stop face, and with the stop face having a first periphery and a second periphery; a string hook member housed in the trigger seat and including an engagement face corresponding to the stop face; and at least one concave portion formed on the stop face and defined between the first periphery and the second periphery. Thus, frictional resistance between the stop face and the engagement face reduces.

Abstract: A retention structure of a crossbow contains a fixer including a seat, a rolling element, a resilient element, and a shock absorber. The seat has an affix sheet, a fitting tube, at least one threaded aperture, an accommodation aperture, and an engagement portion. A diameter of the engagement portion is less than that of the accommodation aperture. The seat contacts with the connection mount. At least one screwing element screws with the at least one threaded aperture via the at least one locking orifice. The rolling element is housed in the accommodation aperture of the seat and is limited by the engagement portion. The resilient element is housed in the accommodation aperture and abuts against the connection mount and the rolling element. The shock absorber has a through hole and fits on the fitting tube of the seat by using the through hole.

Abstract: A crossbow includes an angle adjusting structure for an aiming seat and contains a body, a bow arm, and an adjuster. The body includes a grip handle and intersects with the bow arm which is disposed on the body and includes a bowstring. The adjuster includes a trigger set which has a triggering support with a threaded hole. The adjuster also includes the aiming seat connecting with a rifle scope, and the aiming seat has an orifice rotatably connecting with the triggering support by using a coupling shaft. The aiming seat also has a front segment and a rear segment. Between the front segment and the triggering support is defined a resilient element for pushing the front segment upward, and the rear segment has a threaded rod extending downward therefrom. The threaded rod screws with a rotatable wheel between the aiming seat and the trigger set.

Abstract: A trigger assembly includes a body having a pivot and a hook is mounted to the pivot. The body has a chamber and a path communicates with the chamber. A first positioning unit is located in the path and a safety member is located in the chamber which has two slots and the first positioning unit contacts the slots. An activation member is located on the top of the safety member and has a guide groove and a positioning hole. A guide rod on the safety member is located in the guide groove. A second positioning unit is located in the body and contacts the positioning hole. A pivotal member is pivotably connected to the body and has an end contacting a push portion of the activation member. A spring is mounted to the protrusion and contacts the inside of the body. The trigger assembly includes two safety protections.

Abstract: A crossbow has a stock assembly and a bow assembly. The stock assembly has a body, a retainer and a buffering spacer. The retainer is made of hardened plastic and has a vibrating frequency, a bolt groove, a mounting hole and a holding protrusion. The buffering spacer is made of hardened plastic and has a shape corresponding to the retainer, a vibrating frequency different from the vibrating frequency of the retainer, a gap, a through hole and a holding hole. The bow assembly is securely connected to the stock assembly and has a mounting base, two bow arms, a bowstring and a fastener. The different vibrating frequencies between the buffering spacer and the retainer can destroy the transmission of the shock wave between the retainer and the buffering spacer to disperse and reduce the impact force of the crossbow after shooting a bolt.

Abstract: A trigger assembly includes a body having a pivot, and a hook is mounted to the pivot. The body has a chamber, and a path communicates with the chamber. A first positioning unit is located in the path, and a safety member is located in the chamber which has two slots and the. The first positioning unit contacts the slots. An activation member is located on the top of the safety member and has a guide groove and a positioning hole. A guide rod on the safety member is located in the guide groove. A second positioning unit is located in the body and contacts the positioning hole. A pivotal member is pivotably connected to the body and has an end contacting a push portion of the activation member. A spring is mounted to the protrusion and contacts the inside of the body. The trigger assembly includes two safety protections.