NEWMAN ROBERT D JR (US)
| US4811445A | 1989-03-14 | |||
| US4672706A | 1987-06-16 | |||
| US0275914A | 1883-04-17 | |||
| US4236270A | 1980-12-02 |
| 1. | A tool system comprising: an elongated adaptor presenting a longitudinal ; axis and including an adaptor head and a circumferential rib disposed about the exterior thereof; a tool including a functional member and a hollow handle member integrally depending 0 therefrom, the interior of said handle presenting an inner surface, portions of which form a female groove; an elongated curved extension member having a connection end nonrotatably secured within said adaptor, said handle receiving said adaptor head, and said groove releasably, matingly receiving said rib such that said tool is axially pivotable relative to said adaptor and 0 said extension member but is axially fixed relative thereto. |
| 2. | The tool system of Claim 1, wherein said extension member includes a pole having a curved portion depending from said connection end and an elongated shaft depending from said curved portion. |
| 3. | A tool assembly comprising: an elongated adaptor presenting a longitudinal axis and adaptor including an adaptor head and a circumferential rib disposed about the exterior thereof; and a tool including a functional member and a hollow handle member integrally depending therefrom, the interior of said handle presenting an inner surface, portions of which form a female groove, said handle receiving said adaptor head, and said groove releasably, matingly receiving said rib such that said tool is axially pivotable relative to said adaptor but is axially fixed relative thereto. |
| 4. | The tool assembly of Claim 3, wherein said adaptor is substantially cylindrically elonga¬ ted and further includes an adaptor body integrally depending from said adaptor head, said adaptor head having an upper end and a relatively thicker lower end including a shoulder formed below said rib. |
| 5. | The tool assembly of Claim 3, wherein said adaptor is configured such that the longitudi¬ nal central axis is curved. |
| 6. | A tool system comprising: adaptor means including a curved portion, an adaptor head operably coupled with said curved portion and a circumferential rib disposed about the exterior of said adap¬ tor head; and a tool including a functional member and a hollow handle member integrally depending therefrom, the interior of said handle presenting an inner surface, portions of which form a female groove, said handle receiving said adaptor head, and said groove releasably, matingly receiving said rib such that said tool is axially pivotable relative to said adaptor means but is axially fixed relative thereto. '. |
TOOL SYSTEM WITH ROTATABLE TOOL
Background of the Invention
5 1. Field of the Invention
This invention relates to a tool system used for working on inaccessible places such as multiple-story-building windows and the like. More particularly, it is concerned with a tool system
*L £ having an adapter receiving a tool which is axially fixed but axially rotatable relative to the adapter. 2. Description of the Prior Art
The need to reach elevated inaccessible places such as upper story windows, movie theater
15 marquees and the like has resulted in specialized tools for such purposes. In particular, devices have been developed in which there is an assembly of one or more pole elements coupled with a tool used for working on the job surface. None of these o devices, however, has provided a mechanism for rota¬ tional movement of the tool with respect to the pole and hence reduce the amount of body repositioning required of the user. For example, when a window washer is suspended above ground in the course of 5 washing windows, convenience, not to mention safety, dictates that rotational adjustment of the tool relative to the washer's body would be logistically preferable to awkward bodily compensation for the various angles required to wash a large surface. 0 Particularly inconvenient is the situation where the washer desires to make a vertical cleaning stroke from above his head to below his feet. In the course of such a stroke, with the prior devices, it was necessary for the washer to break contact be- 5 tween the tool and the working surface in order to
reorient the tool system so as to complete the lower portion of the stroke. Other limitations of such nonrotatable tools will readily suggest themselves to those skilled in the art. What is needed is a device which includes a tool rotatably mounted so as to substitute device movement for bodily movement and thus allow the user to work in a more effective manner. A number of devices for working on inaccessible surfaces has Q .been proposed in the past. One such device is illustrated by U. S. Patent No. 4,427,140.
Summary of the Invention
The problems outlined above are in large 5 measure solved by the tool system in accordance with the present invention. That is to say, the system hereof is easily assembled, provides for rotatable movement of the tool against the working surface and does so in a manner whereby the tool may be used in o a more complementary fashion with respect to the user's body.
The tool system in accordance with the present invention broadly includes a tool, an elon¬ gated adapter which receives the tool, and an exten- 5 sion member for reaching inaccessible places. The tool has an inner surface forming a female groove which matingly engages a circumferential rib formed on the adapter.
In preferred forms, the adapter includes a shoulder formed below the circumferential rib, and the adapter and tool are complementally tapered from top to bottom so as to have conforming, increasing radii. In particularly preferred forms, the exten¬ sion member includes a curved portion for coopera- tively interacting with the rotatable movement of the tool.
Brief Description of the Drawing
Fig. 1 is a partial, sectional side eleva- tional view of an alternative embodiment of the present invention; and
Fig. 2 is a partial, exploded front view of the preferred tool system in accordance with the present invention.
Description of the Preferred Embodiment
Referring now to the drawing in general, and Fig. 2 in particular, the tool system 10 in accordance with the invention broadly includes tool 12, elongated adapter 14 and extension member 16. Tool system 10 is used for working on a surface area such as a building window or the like. It will be readily understood that there are many other appli¬ cations for system 10, and virtually any environment with inaccessible or elevated work places will quite possibly have suitable uses.
In more detail, tool 12 includes func¬ tional member 18 and hollow handle member 20. Referring to Fig. 1, functional member 18 is seen to be further divided into frame 22 and jaw member 24, both of which are suitably, threadedly apertured for receiving tightening bolt 26 and nut 28.
With reference to the assembly of tool system 110 of Fig. 1 it will be noted that separate jaw member 24 can be tightened to frame 22 by virtue of the action of bolt 26 and nut 28 and then squee¬ gee blade 30 may be suitably inserted therein. Handle member 20 presents an inner surface 32 in¬ cluding portions forming a female groove 34.
Still referring to Fig. 1, adapter 14 includes an adapter head 36 having an upper threaded portion 38 and an adapter body 40. In preferred forms adapter head 36 is tapered to conform with handle member 20. Adapter head 36 further includes a shoulder 42 and circumerential rib 44 which is axially placed to mate with female groove 34 in the assembled position (female groove 34 is slightly upwardly displaced from rib 44 in Fig. 1 simply for - ease of illustration and it will be readily under¬ stood that when assembled, the groove 34 and rib 44 mate. The taper of adapter head 36 will easily be observed by comparing the relative diameters of upper end 46 and lower end 48. Referring once again to Fig. 2, extension member 16 includes a pole 50 which is nonrotatably secured on adapter 14. Pole 50 may be attached to adapter 14 by a glue or adhesive or the like, or can also be releasably, mechanically fixed by any number of devices known and practiced in the art. Alterna¬ tively, an adapter structure having the shape of adapter 14 and extension member 16 could be inte¬ grally formed so that the system simply included a tool and an adapter structure. In any event, pole 50 has a curved portion
52 depending from connection end 54, and an elonga¬ ted shaft 56 depending from the curved portion 52. Although only a portion of elongated shaft 56 is shown it will be readily understood that any length could be used for shaft 56 and that other connective apparatus could be attached to the end distal from connection end 54 so that a series of poles could be attached together.
In the alternative embodiment of system 110, pole 150 is substantially linear, there being
no curved portion. While pole 50 with curved por¬ tion 52 is preferred, there may be instances where a substantially straight pole such as pole 150 is needed. In operation, the adapter 14 and tool 12 are connected at rib 44 and groove 34 to form a tool assembly. Handle member 20 can be formed of any suitably durable material such as a metal or synthe¬ tic resin, so long as the lower portions of handle member 20 are sufficiently flexible to snap over and resiliently engage rib 44. Further, the surface interaction of inner surface 32 with the exterior surface of adapter head 36 must be sufficiently low in friction that advantageous relative rotation can occur.
It will be readily appreciated that for some tasks the tool assembly consisting of the adapter 14 and tool 12 may have utility in and of itself, particularly if adapter body 40 is long enough to serve as a handle. Normally, however, the user will complete assembly of the system 10 by securing pole 50 to adapter 14. It may also be desirable to attach such appurtenances as squeegee blade 30. When the system 10 is assembled, the user is ready to begin working on a surface. Not only will the user have the benefit of the length pro¬ vided by poles 50, 150 but he will also have the inventive benefit of rotatable tool 12. Thus, when working on the surface, the user needs merely exert a force on one end only of functional member 18 as at 58 by selectively pressing that portion of func¬ tional member 18 against the working surface so as to torque tool 12 in the desired direction. Tool 12 will rotate freely about adapter 14 at rib 44 for the desired result.
One important phenomenon associated with this pivoting aspect of the invention is that in completing a substantially vertical stroke on a working surface, the user will be able to continue his stroke motion in a direction from, for example, above his waist to below his waist without having to remove the functional member 18 from the working surface. This is because as the user adjusts his arms to continue his stroke in a downward motion in -the area substantially below his waist, he can do so without removing functional member 18 from the working surface because the tool 12 will advanta¬ geously rotate to accomodate the shifting orienta¬ tion of pole 50 in relation to the working surface. It will be appreciated that tool system
110 as depicted in Fig. 1 will not as facilely perform this pivoting adjustment because of the lack of a curved portion 52 as incorporated in tool system 10. Nevertheless, both embodiments 10, 110 feature the advantageous pivoting action of tool 12.