Patent Grant
9993917
The present invention relates to cleaning tools and specifically to an ergonomically designed handgrip for elongated handles which facilitates highly effective cleaning functions without causing discomfort and strain to the user.
Handles for cleaning tools, and for push brooms in particular, are routinely straight and continuous or, in some cases, curved slightly rearward and downward. As a result, the user operating the push broom is required to grasp the handle with one hand over the other, bent over, to apply a downward, pushing force with his or her arms. This is an unnatural motion which causes undue strain on the user's back, forearms, hands and wrists. The upper hand, especially, is more severely strained, since it is the hand which imparts the pushing force into the forward motion of the broom, while the wrist is bent at an uncomfortable and inefficient angle. Of course these physical problems result from the requirement that the user exert excessive force in order to effectively clean a surface. Current handles are also not configured to prevent the user's hand from slipping off the handle.
Although there have been various handgrips proposed for push broom and similar cleaning tool handles, none have been developed which have successfully provided an effective and efficient cleaning tool, while still allowing the user to maintain a comfortable, non-injurious position during the cleaning process.
It is thus the object of the present invention to provide a handgrip for a cleaning tool, particularly a push broom or like cleaning tools, which overcomes the disadvantages and limitations of prior handle handgrips.
It is an object of the present invention to provide a handgrip for a cleaning tool handle which allows the user to maintain a comfortable and safe cleaning position, while using a push broom or like cleaning tool.
It is another object of the present invention to provide a handgrip for a cleaning tool handle which allows the user to stand substantially upright while using a push broom or like cleaning tool during the cleaning process.
It is still another object of the present invention to provide a handgrip for a cleaning tool handle which significantly eliminates the strain and risk of injury to the user's back, forearms, wrist, and hands while using a push broom or like cleaning tool during the cleaning process.
It is a further object of the present invention to provide a handgrip for a cleaning tool handle which is ergonomic in design, such that it comfortably and naturally fits into the user's hand.
It is another object of the present invention to provide a handgrip for a cleaning tool handle which has a curved notch, providing a built-in physical stop for the user's hand, which aids in the application of pushing force and prevents the hand from slipping off the handgrip.
It is still another object of the present invention to provide a handgrip for a cleaning tool handle which is economical to manufacture and readily and easily installed onto the end of push broom and comparable cleaning tool handles.
These and other objects are accomplished by the present invention, a hand grip for the handle of a cleaning tool, and particularly a push broom, which comprises a frustum shaped front section with side walls tapering downwardly from an outwardly extending upper lip portion to an opening at the terminus of the front section. The opening is shaped to accept and retain the handle of a cleaning tool. A stock shaped rear section extends downwardly from the front section. The rear section has a curved top wall which merges smoothly downward into curved side walls and merges upwards to the lip portion. A curved notch is formed between the lip portion and the top wall. The curved side walls of the rear section merge smoothly downward into a lower wall of the rear section. This configuration allows the user to maintain a comfortable grasp of the handgrip, eliminating the strain and risk of injury to the user's back, forearms, wrists, and hands. Significantly, the curved notch feature prevents the user's hand, positioned within the notch, from slipping off the handgrip while the cleaning tool is being used.
The novel features which are considered as characteristic of the invention are set forth in particular in the appended claims. The invention, itself, however, both as to its design, construction and use, together with additional features and advantages thereof, are best understood upon review of the following detailed description with reference to the accompanying drawings.
Handgrip 1 of the invention comprises frustum shaped front section 2 having exterior walls comprising top wall 4, shallow concave side walls 6 and 8, and substantially straight bottom wall 10. Top wall 4 and side walls 6 and 8 taper downward from outwardly extending upper lip portion 12, to opening 14 at the terminus of front section 2. Opening 14 is shaped and configured to accept and retain handle 40 of cleaning tool 50. Side walls 6 an 8 also extend downward to merge smoothly into bottom wall 10.
Handgrip 1 also comprises stock shape rear section 20 which extends downwardly from front section 2. The FIGS. show that rear section 20 extends down from front section 2 at an angle of approximately 45°. However, it is contemplated that this angle can be between 45° and 90°. Elevation views of handgrip 1a having an alternate angle are shown in
Rear section 20 has curved exterior top wall 22 which merges smoothly downward into curved side walls 24 and 26. Top wall 22 also merges smoothly upwards to lip portion 12, forming notch 13 between the lip portion and the top wall. Curved side walls 24 and 26 merge smoothly downward into lower wall 28 of rear section 20. Rear section 20 also has closed bottom end wall 30.
Handgrip 1 of the present invention is thus ergonomically designed to provide the user with a more efficient and less strenuous means of utilizing a cleaning tool, such as push broom 50. The design of handgrip 1 permits the handgrip to be grasped comfortably, while allowing the user to exert more downwardly, forward force on push broom 50 during the cleaning operation; but still allowing the user to assume an upright stance.
Handgrip 1 is designed such that the user's thumb is positioned within notch 13 of rear section 20, with the palm of the user spread over curved top wall 2, and the remaining fingers wrapped around lower wall 28. This configuration serves to prevent undo stress on or jamming of the fingers while push broom 50 is being used. Handgrip 1 further has a built-in stop, formed by lip portion 12 and notch 13, which also aids in the application of the pushing force, and, significantly, prevents the user's hand from slipping off the handgrip during use.
Use of handgrip 1 on a typical cleaning tool like push broom 50 allows the user to stand upright during the cleaning operation, which vastly reduces the strain on the back. See
While the handgrip of the present invention is primarily described for use with a push broom, it is contemplated that the handgrip is configured to be used on any cleaning tool with an elongated handle, such as a squeegee, deck scrubber, or scrapper. The handgrip is also designed to be used in an inverted position when attached to the handle of a cleaning tool having a cleaning element on both the top and on the bottom of its cleaning head, e.g. a mop which utilizes a sponge element on one side and a squeegee element on the flip side. Handgrip 1a, shown in
Certain novel features and components of this invention are disclosed in detail in order to make the invention clear in at least one form thereof. However, it is to be clearly understood that the invention as disclosed is not necessarily limited to the exact form and details as disclosed, since it is apparent that various modifications and changes may be made without departing from the spirit of the invention.
| Number | Name | Date | Kind |
|---|---|---|---|
| 1858529 | Spicklemire | May 1932 | A |
| 2389882 | Wood, Jr. | Nov 1945 | A |
| Number | Date | Country |
|---|---|---|
| 2383051 | Nov 2011 | EP |
