The invention relates to the field of combination canes and extended grabbing devices for aiding individuals in walking and in assisting a user to grasp objects out of the user's normal reach.
As the ranks of the elderly increase with the advancing age of the baby boomers, there exists a wide variety of medical and physical infirmities that can afflict this population. Among one of the more common ailments are those affecting the knees, hips and back that limit the ability of the individual to walk without aid or to bend over to pick up an object lying on the ground. Other groups of individuals with walking difficulties can include those injured by an accident or other medical conditions that make it difficult for them to walk without the aid of a cane of some other type of support. Therefore, a number of prior art canes have been described to provide an individual with a cane and/or a cane that also includes an apparatus, forming a permanent part of the cane, for grasping objects at a distance from the user.
For example, U.S. Pat. Nos. 5,392,800, 5,636,650 and 5,640,985 all describe hollow canes in which tension applied to a cable extending within the hollow cane body causes a grasping arm pivotally mounted near the lower rubber tip of the cane to pivot inward, closing a gap against the rubber tip in order to grasp an object.
Other patents describe a mechanism extending external to the body of the cane for moving a pivotally mounted grasping arm. U.S. Pat. No. 5,176,160 discloses a grasping arm that is pulled into contact with the rubber cane tip by means of a cable extending along the outside of the cane, with the cable being pulled by pivoting a lever near the cane handle.
U.S. Pat. No. 6,527,321 to Kuciauskas discloses a grabber and a combined cane and grabber. In the combined cane and grabber, the cane is made of two pieces such that in one alignment the apparatus acts as a standard cane with a “T” handle. By lifting the apparatus off of the ground and pivoting the two cane halves 360 degrees relative to each other, the apparatus acts as a grabber by utilizing the “T” handle ends as ears and lugs for grabbing objects off of the ground.
U.S. Pat. No. 5,692,533 discloses a walking cane with a larger foot member that includes a plurality of forward and downward integrally dependant legs which rigidly extent from the lower member of the support member. This provides additional support and stability to the base of the cane for elderly and infirm individuals to aid in walking.
All of the patents described above require structural differences between the cane being described and a conventional cane to an extent that a conventional cane cannot be readily modified to perform in accordance with the described invention. What is needed is, however, is a cost effective means to provide those requiring assistance in walking with a walking cane that can be easily converted into a grasping device to allow them to securely grasp and safely hold objects that are out of their normal reach. A further object of this invention is to provide a combination walking cane and grasping device with a means for easily converting the walking cane tip into a broader base for those requiring additional stability when walking.
None of these, or other references known to the inventor, treat the problem addressed by the invention, that is, provide a safe, stable and secure walking cane which provides rigid stationary support, while allowing easy use of the device as a grasping tool.
The instant invention relates to a walking cane that includes a means for easily converting the cane into a tool for grasping items out of the normal reach of an individual. The cane comprises two substantially vertical members, pivotably connected to each other, each vertical member having an upper end, a lower end and a longitudinal axis thereof. The upper end being the handle end and the lower end being the tip end. Upon releasing a first locking mechanism, the handle end can be opened up, thereby opening up the tip end to provide a gripper end for grasping objects distant from the handle end. The gripper end being shaped to provide a flat gripper for grasping objects as well as a concave surface for gripping cylindrical objects. Upon closing the apparatus and securing the first locking mechanism the two vertical members interlock to prevent the members from separation during use as a cane.
In an additional embodiment, when used as a cane, the tip can be securely placed and held into a separate base that comprises a broader base surface for additional support and stability. To release the cane in order to utilize the gripping features, the user simply presses a foot lever on the base to release the cane from the separate base. The cane can then be opened up to use as a gripper by releasing the first locking mechanism in the cane and gripper device. When the user desires to re-attach the separate base to the cane, they simply close the cane together and push the tip of the cane into the opening of the separate base which secures the cane to the separate base with a second locking mechanism.
Other advantages, features and benefits of the invention will become apparent to those skilled in the art upon reading the detailed description taken in conjunction with the drawings, which are meant to be only exemplary of the invention and not meant to limit the invention as defined by the appended claims.
The accompanying drawings, which are incorporated in and constitute a part of the specification, schematically illustrate a preferred embodiment of the invention, and together with the general description given above and the detailed description of the preferred embodiment given below, serve to explain the principles of the invention.
Reference will now be made in detail to the description of the invention as illustrated in the drawings. Although the invention is described in connection with the drawings, there is no intent to limit the invention to the embodiment or embodiments disclosed therein. On the contrary, the intent is to include all alternatives, modifications, and equivalents included within the scope and spirit of the invention as defined by the appended claims.
In an alternative embodiment (not shown), the top of the handle halves 7 and 8 could have a protrusion on the top of the handles 7 and 8 that move slideably inside of a dead-ended groove internal to the handle gripping pad 5, thereby providing a mechanical stop to the width that the handle halves 7 and 8 could open when the protrusions encounter the end of the groove in the handle gripping pad 5. Other means of limiting the amount of opening that the gripper could achieve are known in the art.
Once assembled, the handle section 2 is securely fixed to the middle strut section 3 which is securely attached to the cane tip and gripper section 4. By releasing the locking mechanism 13 located in the handle section 1, the user can open up the cane to use the device as a gripper which is pivoted in the middle strut section 3. By closing the handle and tip sections 2 and 4, engaging the locking mechanism 13 holding the handle halves 7 and 8 together, combined with the interlocking “Z” cross-sectional shape of the handle, strut and tip sections 2, 3 and 4 along with the gripping pad 5 that provides a soft grip and keeps the handle top halves 7 and 8 together, the walking cane and grabber 1 becomes a sturdy and rigid walking cane that can be quickly and easily converted into an extended grabbing devise.
In an alternative embodiment, a handle half 7 or 8, a vertical half 27 or 28 and a tip half 36 or 37 could be made as one continuous piece without the need for assembling the three component parts. Two such continuous pieces could then be pivotably joined proximate the center length of the continuous pieces to create a combination walking cane and grasping device.
In a further alternative embodiment, the non-skid material layers 38 and 39 placed on the tip and the internal curved portion 40 on the cane tip 4 is replaced with a separate non-skid material (not shown) for the internal curved portion and a separate replaceable non-skid material cup portion (not shown) that fits over the end tip for traction with the ground when the device is utilized as a cane. This allows for replacement of the non-skid cup tip portion if it is damaged or wears out through use of the cane.
In an additional embodiment, shown in
To release the walking cane and gripper 1 from the broader base 45, the user depresses the spring 54 loaded button 55 which in turn pushes down on a cable 56. The cable 56 is connected around pulleys 57 to the base of each pin 50. By depressing the button 55, the cable 56 moves downward, thereby causing the pins 50 to be pulled back into the holes 52 in the base 45, which in turn releases the walking cane and grabber 1 from the base 45. Other means of securing and releasing the walking cane and gripper 1 to the base 45 can be easily derived from the concepts presented here by those skilled in the art.
Thus it is apparent that there has been provided, in accordance with the invention, a cane and grabber that satisfies the aims and advantages set forth above. While the invention has been described in conjunction with the specific embodiments thereof, it is evident that there may be many alternatives, modifications and variations that may be apparent to one skilled in the art of the foregoing description. Accordingly, it is intended to embrace all such modifications and alternatives as may fall within the scope and spirit of the appended claims.
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