SUPPORT DEVICE FOR A CROSSBOW
A crossbow includes a body, a grip portion, an aim device rack, a stock connected to the rear end of the body, and two support devices connected to two sides of the front end of the body. Each support device includes a first block and a second block. The first block is fixed to the body. The second block is pivotably connected to the first block. Two plates are connected to the second block. Each plate includes a curved slot. Two bolts movably extend through the two curved slots and the first block so that the second blocks are pivotable relative to the first blocks. Each second block includes an inclined face including a low end is located corresponding to the aim device rack, and a high end located corresponding to the grip portion. The crossbow is positioned between a first position and a second position with a weight balance.
This patent application is a divisional patent application of the patent application with application Ser. No. 16/541,178.
BACKGROUND OF THE INVENTION 1. Fields of the Invention 2. Descriptions of Related ArtThe conventional crossbows generally include a stock, a grip and a bow, the users have to pull the string and position the string, and the arrow is then engaged with the string. The users holds the grip by one hand, and support the body of the crossbow by the other hand. By pulling the trigger, the string is released, and the arrow shoots out.
However, the crossbow is heavy due to more parts are involved, and the weight of the crossbow makes the users feel uncomfortable when aiming a target. On the other hand, when not in use, the conventional crossbows do not have any stand-up design for the users to temporally put the crossbows aside.
The present invention intends to provide a support device that allows the crossbow to stand upright stably.
SUMMARY OF THE INVENTIONThe present invention relates to a support device for a crossbow, wherein the crossbow comprises a crossbow having a body, a grip portion on the underside of the body, an aim device rack on the top side of the body, and a stock connected to the rear end of the body. Two support devices are respectively connected to two sides of the front end of the body. Each support device comprises a first block and a second block. The first block includes a first end thereof fixed to the body. A second end of the first block includes two lugs. The second block includes a protrusion which is pivotably connected between the two lugs by a pin so that the second block is pivotable relative to the first block. Two plates are located on two sides of each second block, and each plate has a curved slot. One of two bolts extends through the two plates and the second block. The other one of the two bolts extends through the two curved slots of the two plates and the first block. The two bolts force the two plates to secure the first and second blocks so that the second block is not pivotable relative to the first block, or the two bolts release the two plates not to secure the first and second blocks so that the second block is pivotable relative to the first block. Each second block includes an inclined face defined in one side thereof which is located opposite to the first block. Each inclined face includes a low end located corresponding to the aim device rack, and a high end located corresponding to the grip portion. The crossbow is positioned between a first position and a second position. The two respective high ends of the two inclined faces contact the ground when the crossbow is positioned at the first position, and an angle is formed between the inclined face of each support device and the ground. The first position defines a first weight center of the crossbow. When the crossbow is positioned at the second position, both of the high end and the low end of each of the two inclined faces contact the ground. The second position defines a second weight center of the crossbow. When the body shifts from the first position to the second position, the first weight center transfers to the second weight center so that the grip portion and the aim device rack reach a weight balance.
The advantages of the present invention are that the body does not fall due to the different weights of the grip portion and the aim device rack when the body is positioned at the second position where both of the two inclined faces contact the ground so that the first weight center is changes to the second weight center, and the body is stable and does not fall.
The co-application of the present invention has granted in Taiwan and issued as Taiwanese Patent No. 1695154 which was published on Jun. 1, 2020.
The present invention will become more apparent from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
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In order to allow the body 11 to be positioned on an uneven ground, the second embodiment of the present invention is disclosed in
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While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
Claims
1. A crossbow comprising:
- a body, a grip portion on an underside of the body, an aim device rack on a top side of the body, a stock connected to a rear end of the body, two support devices respectively connected to two sides of a front end of the body, each of the support devices including a first block and a second block, the first block having a first end thereof fixed to the body, a second end of the first block including two lugs, the second block including a protrusion which is pivotably connected between the two lugs by a pin so that the second block is pivotable relative to the first block, two plates located on two sides of each second block, each plate having a curved slot, one of two bolts extending through the two plates and the second block, the other one of the two bolts extending through the two curved slots of the two plates and the first block, the two bolts forcing the two plates to secure the first and second blocks so that the second block is not pivotable relative to the first block, or the two bolts releasing the two plates not to secure the first and second blocks so that the second block is pivotable relative to the first block, each second block having an inclined face defined in one side thereof which is located opposite to the first block, each of the inclined faces including a low end which is located corresponding to the aim device rack, and a high end which is located corresponding to the grip portion, the crossbow being positioned between a first position and a second position, the two respective high ends of the two inclined faces contacting the ground when the crossbow is positioned at the first position, an angle being formed between the inclined face of each support device and the ground, the first position defining a first weight center of the crossbow, when the crossbow is positioned at the second position, both of the high end and the low end of each of the two inclined faces contact the ground, the second position defining a second weight center of the crossbow, when the body shifts from the first position to the second position, the first weight center transfers to the second weight center so that the grip portion and the aim device rack reach a weight balance.
2. The support device for a crossbow as claimed in claim 1, wherein the angle is from 10 to 45 degrees.
3. The crossbow as claimed in claim 1, wherein an assistance leg is connected to each of the two sides of the body and located close to the support device, the assistance leg includes a first end thereof pivotably connected to the body, a second end of the assistance leg is threadedly connected to an extension portion, the assistance leg is pivotable toward the low end of the inclined face, the extension portion is adjustably and threadedly connected to the assistance and contacts the ground.
Type: Application
Filed: Jul 22, 2020
Publication Date: Feb 18, 2021
Inventor: Chi-Chang Liu (Taichung City)
Application Number: 16/935,197