Trigger for crossbow

Abstract

A trigger of a crossbow includes a trigger guard including an inner periphery. A trigger is pivotably located within the trigger guard. The trigger includes a space defined in the rear face thereof. A switch member includes a body portion, and an operation section and a contact section are respectively formed on two ends of the body portion. The body portion is pivotably connected in the space. A resilient member is biased between the contact section and the inner end of the space. The contact section is pushed by the resilient member to contact the inner periphery of the trigger guard to restrict the trigger from being pulled. When the operation section is pulled, the switch member is pivoted and the contact section compresses the resilient member. The contact section is moved away from the inner periphery of the trigger guard such that the trigger is able to be pulled.

What is claimed is: 
     
         1 . A trigger of a crossbow, comprising:
 a trigger guard and a trigger, the trigger guard including an inner periphery, the trigger pivotably located within the trigger guard, the trigger including a front face and a rear face, a space defined in the rear face of the trigger, a switch member including a body portion, and an operation section and a contact section respectively formed on two ends of the body portion, the body portion pivotably connected in the space, the operation section and the contact section of the switch member being pivotable relative to the trigger, and   a resilient member located in the space and biased between the contact section and an inner end of the space, the contact section being pushed by the resilient member to contact the inner periphery of the trigger guard to restrict the trigger from being pulled, when the operation section is pulled, the switch member is pivoted, and the contact section compresses the resilient member, the contact section is moved away from the inner periphery of the trigger guard such that the trigger is able to be pulled.   
     
     
         2 . The trigger of a crossbow as claimed in  claim 1 , wherein the trigger includes a bottom face which is formed with the front face and the rear face, the operation section includes a press face and two lateral faces that formed on two sides of the press face, the press face of the operation section and the front face of the trigger both face the same direction, the body portion extends from a top end of the operation section so as to form two top faces between which the body portion extends, when the operation section is pulled, the two top faces of the operation section contact the bottom face of the trigger to pivot the trigger. 
     
     
         3 . The trigger of a crossbow as claimed in  claim 1 , wherein the space includes a first recess defined in the inner end thereof, the switch member includes a second recess which is located corresponding to the first recess, the resilient member is a compression spring, and two ends of the resilient member are respectively positioned in the first and second recesses. 
     
     
         4 . A trigger of a crossbow, comprising:
 a trigger guard and a trigger, the trigger guard including an inner periphery, the trigger pivotably located within the trigger guard, the trigger including a front face and a rear face, a space defined in the rear face of the trigger, the trigger including a slot defined through a lower portion thereof so as to form two extensions with the slot formed therebetween, the slot communicating with the space, a switch member including a body portion, and an operation section and a contact section respectively formed on two ends of the body portion, the body portion pivotably connected in the space, the switch member being pivotable relative to the trigger, the operation section located between the two extensions, and extending beyond the slot, and   a resilient member located in the space and biased between the contact section and an inner end of the space, the contact section being pushed by the resilient member to contact the inner periphery of the trigger guard to restrict the trigger from being pulled, when the operation section is pulled, the switch member is pivoted, and the contact section compresses the resilient member, the contact section is moved away from the inner periphery of the trigger guard such that the trigger is able to be pulled.   
     
     
         5 . The trigger of a crossbow as claimed in  claim 4 , wherein the space includes a first recess defined in the inner end thereof, the switch member includes a second recess which is located corresponding to the first recess, the resilient member is a compression spring, and two ends of the resilient member are respectively positioned in the first and second recesses. 
     
     
         6 . A trigger of a crossbow, comprising:
 a trigger guard and a trigger, the trigger guard including an inner periphery, the trigger pivotably located within the trigger guard, the trigger including a front face and a rear face, a space defined in the rear face of the trigger, the trigger including a slot defined through a lower portion thereof so as to form two extensions with the slot formed therebetween, the slot communicating with the space, a switch member including an operation section, a contact section, a body portion and a plate, the operation section and the contact section respectively formed on two ends of the body portion, the body portion pivotably connected in the space, the switch member being pivotable relative to the trigger, the operation section located between the two extensions, and extending beyond the slot, and   the plate extending from the switch member and located between the contact section and the body portion, the plate extending toward the trigger and resiliently contacting the inner periphery of the trigger guard so as to restrict the trigger from being pulled, when the operation section is pulled, the switch member is pivoted, and the contact section compresses the plate, the contact section is moved away from the inner periphery of the trigger guard such that the trigger is able to be pulled.   
     
     
         7 . The trigger of a crossbow as claimed in  claim 6 , wherein an angle is formed between the plate and the contact section, the plate contacts the inner bottom of the space, the plate resiliently pushes and pivots the switch member, the contact section contacts the inner periphery of the trigger guard to restrict the trigger from being pulled, when the operation section is pulled and the switch member is pivoted, the contact section is moved to narrow the angle, so that the contact section is separated from the inner periphery of the trigger guard to release the trigger.