This invention relates generally to supports for steadying weapons during aiming, and more particularly to an articulated shooting stick for crossbows, rifles, shotguns and other weapons.
Crossbows, rifles, shotguns, and other weapons are heavy in nature. With their centers of mass located away from the shooter's body, they are typically difficult to hold steady and manipulate during aiming for consistent shot placement. The same holds true for cameras binoculars, telescopes, and other devices. This problem is exacerbated when hunting with crossbows or when the user must maintain a position for a long period of time until the prey is properly oriented and at an appropriate distance for photographing, observing, shooting, and so on.
The prior art includes a plurality of apparatuses for steadying portable devices which are to be aimed by a user. For example, tripods are commonly used to steady cameras or telescopes. In many situations, tripods function admirably for this purpose. However, although many tripods are portable, setting a tripod up and taking it down often takes too much time for the user, can be difficult to transport efficiently, and may be too bulky to set up in a tree stand. Some prior art solutions suggest relieving some of this bulkiness by providing a support stick that rest against a user at one end and support a crossbow, firearm or other device at the other end. Such devices are typically inflexible, in that there is no mechanism for allowing precise positioning and control of the crossbow, firearm, or other device with the user's fine motor control. Thus, when it is desirous to take aim at potential game or a distant target, and follow the target as it moves within the field of view and possibly closer to and/or further away from the user, prior art support sticks fall short.
Moreover, when using a crossbow for example, the safety of the user may become compromised due to the orientation of the crossbow stock and the fingers of the user during firing. The crossbow stock naturally forces the user to orient his or her fingers upwards, which may interfere with the crossbow string during release of the bolt and lead to serious injury.
It would therefore be desirous to provide a support stick that overcomes at least one or more disadvantages of the prior art. It would further be desirous to provide a allows a user to hold a weapon or other device in an aiming stance while preserving the user's strength and allowing the user to fine tune a potential shot or image by manipulating the support stick with the user's fine motor control.
In accordance with one aspect of the invention, an articulated support stick for supporting a weapon or other device, includes a handle for grasping by a user, a cradle connected to the handle for receiving and supporting the weapon or other device, a leg for supporting the handle while directing a portion of the weight of the weapon or other device along the leg, and an articulated joint assembly connected between the handle and the leg so that the handle can be manipulated by the user about mutually orthogonal axes with respect to the leg to thereby adjust the cradle portion and thus a position of the weapon or other device while preserving the user's strength.
It is noted that the drawings are intended to depict only typical embodiments of the invention and therefore should not be considered as limiting the scope thereof. It is further noted that the drawings may not be necessarily to scale. The invention will now be described in greater detail with reference to the accompanying drawings.
Referring now to the drawings, and to
Although the present invention is described for use with crossbows in order to facilitate description of the invention, it will be understood that the invention is not limited thereto, but may also be used to support other weapons, including but not limited to, rifles, shotguns, handguns with long barrels, and so on, as well as other elongate devices that require extra support and fine motor control during use, such as the support and adjustment of cameras with telescopic lenses, ranging scopes, and so on.
With additional reference to
The handle assembly 12 preferably includes a two piece, ergonomically shaped grip with a base portion 24 having a rear slot 26 for receiving the telescoping leg assembly 14 when folded, and a gripping section 28 that interfaces with the fingers 25 (
With particular reference to
With reference to
The tube 62 connects to the tube 60 via a first friction joint 66. Likewise, the tube 64 connects to the tube 62 via a second friction joint 68. Preferably, the friction joints 66 and 68 are similar in structure and function. Each friction joint includes a central hub 70 with a first connection section 72 that extends into the tube 62 or 64 in a friction fit or mechanical connection, and a second frustoconical section 74. Split clamping sections 76, 78 have inner frustoconical surfaces 79 that surround the frustoconical section 74. The head 82 of a bolt 80 is captured in the split clamping sections 76, 78 while the threaded shank 84 extends from the head 82 and into a threaded opening 86 of the central hub 70.
In use, the user can hold one tube while twisting the other either clockwise or counterclockwise to lock the position of the tubes or to release the tubes from the locked position. At the tube is rotated in one direction, the bolt 80 causes the frustoconical surfaces 79 to tighten against the frustoconical section 74 to thereby lock the tubes together. Likewise, as the tube is rotated in the opposite direction, the frustoconical surfaces become disengaged to thereby unlock the tubes. The friction joints thus become advantageous in providing a secure stance for the crossbow or other weapon during use. The amount of friction in each joint can be set by the user based on the weight of the crossbow (a heavier crossbow requires more friction to keep the joint locked). This joint should be tight enough to support the crossbow, yet loose enough to allow the user to smoothly move the joint during use. The movement in this joint allows the user to track an animal based on its position in the hunting field. For example, if a deer comes in underneath the hunter located on a tree stand, the down angle would be extreme, but if a shooter is standing on the ground, the angle is not nearly as severe, so the user can rotate his or her wrist to work the support stick much like a simple linkage system. To adjust the length, the ribbed handle 92 or 94 associated with the tubes 62 or 64, respectively, is turned to loosen the internal collet clamp, the leg is moved to move the desired length, then the ribbed handle is rotated clockwise to lock the leg adjustment. Each of the tube sections can be adjusted independently.
The lower compliant assembly 20 allows dynamic changes in the length of the support stick during use, such as when the user (sitting high above in a tree stand) is tracking an animal coming into the hunting field. The animal is first sighted at a long distance, but slowly moves in (requiring more and more down angle adjustments.) The user can track the animal by rotating the handle, moving the compliant section in/out, and rotating the handle left or right. These movements are fairly minimal, but all work together to provide a very stable and easy to use shooting system for the crossbow regardless of the shooting stance. The compliant assembly can include an elongate compression spring 96 located within a sleeve 98 as shown, or operated by a pressurized gas (or hydraulic) cylinder (not shown). An end cap 100 is located at the end of the sleeve 98 and a resilient foot 102 is connected to the end cap 100. The end cap 100 and resilient foot 102 can be generally C-shaped to accommodate different anchor points on the use body. However, it will be understood that other shapes can be used without departing from the spirit and scope of the invention.
It will be understood that the articulated support stick 10 is not limited to two telescopic sections or to a single compliant section, as more or less of these sections can be provided. In accordance with a further embodiment of the invention, the telescoping legs and/or the compliant assembly can be eliminated and a rigid rod substituted therefor, with or without the compliant assembly.
Referring now to
The handle assembly 112 preferably includes an ergonomically shaped gripping section 124 formed on a base portion 126. A rear slot 128 is formed in the base portion 126 and is sized to receive the leg assembly 114 when folded. The base portion 126 can be constructed of a durable polymer material, and the gripping section 124 can be constructed of an elastomeric material and bonded to the base section through an overmolding process during manufacture. However, it will be understood that other materials and manufacturing processes and/or means for connecting the gripping section to the base portion can be used. It will be further understood that the base portion 126 can be provided without the gripping section 124 for manipulation by a user without departing from the spirit and scope of the invention.
A saddle 130 includes a curved gripping section 132 for receiving the stock of a crossbow, the barrel of a firearm, and so on, for supporting the weapon or other device when in use. The saddle 130 also includes a circular mounting section 134 that extends downwardly from the gripping section 134. A circular cavity 136 is formed in the mounting section 134 for receiving a first shaft or pivot pin 138, which forms part of the articulated joint assembly 116. The first pivot pin 138 normally will not be disconnected from the saddle 130 and thus a set screw 140 or the like extends through the wall of the mounting section 134 and engages the pivot pin 138 so that the saddle 130 rotates with the pivot pin about a first pivot axis 142 to enable the crossbow or other device to pivot or sweep in a generally horizontal direction.
The articulated joint assembly 116 further includes a body 144 that is preferably spherical in shape with an upper bore 146 formed therein for receiving the free end of the shaft 138. The shaft 138 is preferably pivotally retained in the upper bore 146 to enable pivotal or rotational movement of the saddle 130 about the first pivot axis 142 with respect to the spherically-shaped body 144. A second pivot pin 148 (
As best shown in
It will be understood that the tube 160 can be secured against movement so that only the first and second axes 142 and 155, respectively, are available for adjusting the position of the crossbow. The tube 160 also includes a locking slot 174 for receiving a pin 176 that projects outwardly from the tube 166 for locking the tubes or the tubes 60, 162, 164, and 166 together in the collapsed position The pin 176 may alternatively be associated with the foot 122 or other structure of the articulated support stick 110 for accomplishing the same purpose. As in the previous embodiment, the tubes may be connected together via friction joints (not shown) or other well-known telescopic connection means.
Although the articulated support sticks 10 and 110 are similar to a certain extent, in that each assembly includes a cradle, an articulated joint, and a leg or leg assembly for transferring the weight of the weapon or other device to an anchor point on the person, thereby facilitating holding and aiming the device during use, there are some noted differences. In the first embodiment, the handle of the articulated support stick 10 is located between the articulated joint assembly and the cradle. In the second embodiment, the articulated joint assembly of the articulated support stick 110 is located between the cradle and the handle. Accordingly, the combination of the cradle, articulated joint, and leg (or leg assembly)
Referring now to
The handle assembly 182 is similar to the handle assembly 112 previously described, and preferably includes an ergonomically shaped gripping section 190 formed on a base portion 192. A rear slot 194 is formed in the base portion 192 and is sized to receive a mounting post 196 that extends from the articulated joint assembly 186. As in the previous embodiments, the base portion 192 can be constructed of a durable polymer material, and the gripping section 190 can be constructed of an elastomeric material and bonded to the base section through an overmolding process during manufacture. However, it will be understood that other materials and manufacturing processes and/or means for connecting the gripping section to the base portion can be used. It will be further understood that the base portion 192 can be provided without the gripping section 190 for manipulation by a user without departing from the spirit and scope of the invention.
A saddle 198 includes a curved gripping section 200 for receiving the stock of a crossbow, the barrel of a firearm, and so on, for supporting the weapon or other device when in use. The saddle 198 also includes a circular mounting section 202 that extends downwardly from the gripping section 200. A circular cavity 204 (
The articulated joint assembly 186 is preferably in the form of a ball and socket joint and includes a semi-spherical housing 210 with a hollow interior 212 that forms a socket for receiving a ball 214 that is rotatable in the socket about three mutually orthogonal axes 216, 218, and 220 (
As best shown in
In view of the above exemplary embodiments of the invention, an articulated support stick has been provided that allows a user to hold a weapon in an aiming stance while preserving the user's strength and allowing the user to fine tune a potential shot by manipulating the support stick is a significant advantage over prior art devices. Moreover, due to the orientation of the handle assembly of each embodiment (see
It will be understood that the term “preferably” as used throughout the specification refers to one or more exemplary embodiments of the invention and therefore is not to be interpreted in any limiting sense. In addition, terms of orientation and/or position as may be used throughout the specification denote relative, rather than absolute orientations and/or positions.
It will be appreciated by those skilled in the art that changes could be made to the embodiments described above without departing from the broad inventive concept thereof. It will be understood, therefore, that the present invention is not limited to the particular embodiments disclosed, but also covers modifications within the spirit and scope of the invention as defined by the appended claims.
This application claims the benefit of U.S. Provisional Application No. 61/844,988 filed on Jul. 11, 2013, the disclosure of which is hereby incorporated by reference.
Number | Name | Date | Kind |
---|---|---|---|
4676021 | Groba | Jun 1987 | A |
5149900 | Buck | Sep 1992 | A |
5345706 | Brown | Sep 1994 | A |
5784820 | Wood | Jul 1998 | A |
5930931 | Watson | Aug 1999 | A |
6009655 | Austin | Jan 2000 | A |
6027087 | Lindemann | Feb 2000 | A |
7065914 | Wagner, II | Jun 2006 | B1 |
7669827 | Urrutia | Mar 2010 | B2 |
7677233 | Bednar | Mar 2010 | B2 |
20050262753 | Lahti | Dec 2005 | A1 |
20070068501 | Bednar | Mar 2007 | A1 |
20070266609 | Wuertz | Nov 2007 | A1 |
20100269393 | Bean | Oct 2010 | A1 |
20130167424 | Nail | Jul 2013 | A1 |
20130327281 | Michels | Dec 2013 | A1 |
Number | Date | Country | |
---|---|---|---|
61844988 | Jul 2013 | US |