Pole guide cover
09758354 · 2017-09-12
Assignee
Inventors
Cpc classification
B66C1/62
PERFORMING OPERATIONS; TRANSPORTING
E04H12/34
FIXED CONSTRUCTIONS
International classification
Abstract
A sacrificial polymer pole guide cover for the use of covering one or more pole guide tongs in a pole guide. The pole guide cover has a generally arcuate body presenting a length and that is curved along the length. The pole guide cover further presents a concave interior surface along the length and a convex exterior surface along the length. A channel is formed in at least a portion of the length of the convex exterior surface. The channel is shaped to complementally receive at least a portion of a pole guide tong. The pole guide cover also has a mounting assembly for removably mounting the pole guide cover to the pole guide tong.
Claims
1. A pole guide cover for covering at least a portion of a pole guide tong of a pole guide assembly, said pole guide tong being generally arcuate to present a concave interior surface and a convex exterior surface along a length of the pole guide tong, and wherein the concave interior surface is operable to at least partially engage a load, the pole guide cover comprising: an arcuate body having a length and including a rounded engagement segment formed of a hardened polymeric material along the length of the arcuate body and a mounting segment along the length of the arcuate body, wherein the mounting segment comprises a lower mounting plate and an upper mounting plate; a channel formed in at least a portion of the length of the convex exterior surface between the lower mounting plate and the upper mounting plate, wherein the channel is shaped to complementally receive at least a portion of the length of the concave interior surface of the pole guide tong, wherein the mounting segment includes a plurality of openings in each of the lower mounting plate and the upper mounting plate, wherein the plurality of openings are configured to receive a plurality of fasteners, traversing the channel, to removably secure the pole guide cover to the pole guide tong.
2. The pole guide cover of claim 1, wherein upon mounting the pole guide cover to the pole guide tong, the pole guide cover creates a buffer between the pole guide tong and the load being acted upon by the pole guide assembly.
3. The pole guide cover of claim 1, wherein the engagement segment presents a concave interior surface and a convex exterior surface, such that the interior surface of the engagement segment is said concave interior surface of the arcuate body; and wherein the mounting segment presents a concave interior surface and a convex exterior surface, such that the exterior surface of the mounting segment is said convex exterior surface of the arcuate body.
4. The pole guide cover of claim 3, further comprising: a bull nose segment coupled to a leading edge of the engagement segment, wherein the bull nose segment is adapted to cover at least a portion of a leading edge of the pole guide tong.
5. The pole guide cover of claim 1, wherein the mounting segment is formed of a metal.
6. The pole guide cover of claim 1, wherein the engagement segment and mounting segment are both formed of a single hardened polymeric material and are monolithic.
7. The pole guide cover of claim 1, further including a plurality of fasteners to be placed through the plurality of openings in the lower mounting plate and the upper mounting plate to removably secure the pole guide cover to the pole guide tong.
8. The pole guide cover of claim 1, wherein the lower mounting plate and the upper mounting plate are each coupled with the engagement segment.
9. The pole guide cover of claim 1, wherein the lower mounting plate and the upper mounting plate are substantially parallel to each other and separated by a distance.
10. The pole guide cover of claim 1, wherein the mounting segment further comprises: a back mounting plate, wherein the back mounting plate is coupled to at least a portion of the lower mounting plate and a portion of the upper mounting plate, wherein the back mounting plate is opposite the engagement segment.
11. A pole guide cover for covering at least a portion of a pole guide tong of a pole guide assembly, said pole guide tong being generally arcuate to present a concave interior surface and a convex exterior surface along a length of the pole guide tong, and wherein the concave interior surface is operable to at least partially engage a load, the pole guide cover comprising: an arcuate body having a length and presenting a concave interior surface including a rounded engagement segment formed of a hardened polymeric material along the length of the arcuate body and a convex exterior surface along the length of the arcuate body, wherein the arcuate body is curved along the length to form the concave interior surface and the convex exterior surface; a channel formed in at least a portion of the length of the convex exterior surface, wherein the channel is shaped to complementally receive at least a portion of the length of the concave interior surface of the pole guide tong; and a mounting assembly for removably mounting the pole guide cover to the pole guide tong, wherein the mounting assembly includes a lower mounting plate and an upper mounting plate, wherein the lower mounting plate and the upper mounting plate are substantially parallel to each other and separated by a distance, wherein the lower mounting plate and the upper mounting plate each include a plurality of openings configured to receive a plurality of fasteners, traversing the distance, to removably secure the pole guide cover to the pole guide tong, wherein the engagement segment overlays the distance separating the upper mounting plate and lower mounting plate.
12. The pole guide cover of claim 11, wherein the engagement segment presents a concave interior surface and a convex exterior surface, such that the interior surface of the engagement segment is said concave interior surface of the arcuate body; and wherein the mounting segment presents a concave interior surface and a convex exterior surface, such that the exterior surface of the mounting segment is said convex exterior surface of the arcuate body.
13. The pole guide cover of claim 11, wherein the mounting segment is formed of a metal.
14. The pole guide cover of claim 11, wherein the engagement segment and mounting segment are both formed of a single hardened polymeric material and are monolithic.
15. The pole guide cover of claim 11, further including a plurality of fasteners to be placed through the plurality of openings in the lower mounting plate and upper mounting plate to removably secure the pole guide cover to the pole guide tong.
16. The pole guide cover of claim 11, wherein the mounting segment further comprises: a back mounting plate coupled to at least a portion of the lower mounting plate and a portion of the upper mounting plate, wherein the back mounting plate is opposite the engagement segment.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) Embodiments of the invention are described in detail below with reference to the attached drawing figures, wherein:
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(14) The drawing figures do not limit the invention to the specific embodiments disclosed and described herein. The drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the invention.
DETAILED DESCRIPTION
(15) The following detailed description references the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. The embodiments are intended to describe aspects of the invention in sufficient detail to enable those skilled in the art to practice the invention. Other embodiments can be utilized and changes can be made without departing from the scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense. The scope of the invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled.
(16) In this description, references to “one embodiment,” “an embodiment,” or “embodiments” mean that the feature or features being referred to are included in at least one embodiment of the technology. Separate references to “one embodiment,” “an embodiment,” or “embodiments” in this description do not necessarily refer to the same embodiment and are also not mutually exclusive unless so stated and/or except as will be readily apparent to those skilled in the art from the description. For example, a feature, structure, act, etcetera described in one embodiment may also be included in other embodiments, but is not necessarily included. Thus, the invention can include a variety of combinations and/or integrations of the embodiments described herein.
(17) Turning now to the drawings, an exemplary utility vehicle 10 with a boom assembly 12 including a boom 14 and a pole guide assembly 16 is illustrated in
(18) The pole guide assembly 16 is secured to a distal end of the boom 14 and is positioned to engage, secure, and stabilize a load 20 held by the load line 18 and guide the load 20 into a desired position. In other embodiments of the invention, the pole guide assembly 16 does not utilize a load line 18, for example, if the load is relatively lightweight. By way of example, the load 20 may be a utility pole wherein the pole guide assembly 16 engages and stabilizes the utility pole while the boom 14 lifts and positions the pole to be placed in a hole. By way of another example, the load 20 could be a fence post. By way of yet another example, the load 20 could be a beam for the construction of a structure. The load could also be any other object that has a section thereof which could be gripped by the pole guide assembly 16.
(19) With particular reference to
(20) To operate the pole guide assembly 16, an operator rotates the pole guide tongs 24 to the open position by moving a distal end of one of the pole guide tongs 24 away from the other pole guide tong 24. This can be accomplished manually, mechanically, pneumatically, electrically, or a combination thereof. With the pole guide tongs 24 in the open position, as shown in
(21) As used herein, “operator” refers to a person using or utilizing the pole guide assembly 16 or assisting therewith, a person performing maintenance on the pole guide assembly 16, a supervisor overseeing the operation of the pole guide assembly 16, or other person consistent with the context.
(22) In embodiments of the invention, each of the pole guide tongs 24 is provided with a pole guide cover 28. The pole guide cover 28 for each pole guide tong 24 is substantially the same, such that the pole guide cover 28 for placement on a left pole guide tong 24 of the pole guide assembly is substantially the same as a pole guide cover 28 for placement on a right pole guide tong 24 of the pole guide assembly 16.
(23) With particular reference to
(24) Referring to
(25) As illustrated in
(26) The pole guide tong 24 is placed within the channel 48 by sliding the tong 24 into the channel. As noted above, the width W2 between the left and right mounting plates 44,46 is approximately the same as or slightly larger than the width W1 of the pole guide tong 24. In embodiments of the invention, the width W2 compared to the width W1 is sufficiently large to enable the pole guide tong 24 to be easily slid within the channel 48, but not so large that the pole guide tong 24 exhibits a significant amount of transverse movement within the channel 48.
(27) In some embodiments of the invention, a plurality of openings 50 are intermittently spaced along a length of the left mounting plate 44 and the right mounting plate 46 for securing the left mounting plate 44 and the right mounting plate 46 to the pole guide tongs 24. In a particular embodiment of the invention as shown in
(28) As used herein, the engagement segment 36 of the pole guide cover 28 is proximate to and/or engages a load 20 when the pole guide cover 28 is mounted on the pole guide tong 24. The engagement segment 36 provides an interface between the pole guide tong 24 and the load 20 to be engaged. The engagement segment 36 may extend beyond the leading edge of the pole guide tong 24 or may only be a length sufficient to provide an interface for the load 20 to be engaged.
(29) In embodiments of the invention, the engagement segment 36 is manufactured from a polymeric material. In these embodiments of the invention, the coefficient of friction between the engagement segment 36 and the load 20 to be engaged is at least lower than the coefficient of friction between the pole guide tong 24 and the load 20 to be engaged. This enables a smoother transition as the load 20 is released and/or lowered into position. This also reduces the damage caused to the load 20 by the pole guide tongs 24, and the damage to the pole guide tongs 24 by the load 20.
(30) The polymeric material of these embodiments of the invention may also possess relatively high tensile, shear, and/or compression strengths. The polymeric material of this embodiment of the invention may also possess a high impact resistance. These properties provide resistance to wear and degradation. Exemplary polymeric materials from which the engagement segment 36 can be formed include, but are not limited to, urethane, polyurethane, polyoxymethylene, fluorinated polymers, polystyrene, plastics, thermoplastics, and thermosetting polymers. The polymeric material also has the benefit of being inexpensive to replace if and when the pole guide cover 28 becomes damaged during use.
(31) In other embodiments of the invention, the engagement segment 36 is formed of a metal, such as brass, copper, aluminum, or steel. In these embodiments of the invention, the engagement segment 36 has an increased useful life.
(32) As best shown in
(33) In embodiments of the invention, width W3 of the engagement segment 36 is greater than the width W1 of the pole guide tong 24. In these embodiments, the ratio W3:W1 is greater than 1. By way of example, in embodiments of the invention, the ratio W3:W1 can range from approximately 1-8, approximately 1.5-6, approximately 2-4, or be approximately 2.125. Alternatively stated, the ratio of W3:W1 is less than approximately 8:1, 7:1, 6:1, 5:1, 4:1, 3:1, 2:1, or 2.125:1. In one exemplary embodiment, the width W1 of the pole guide tong 24 can range from approximately 0.25-1.5 inches, approximately 0.5-1 inch, or be approximately 0.8 inch. The width W3 of the engagement segment 36 can range from approximately 0.5-3.5 inches, approximately 1-2.5 inches, approximately 1.5-2 inches, or be approximately 1.7 inches.
(34) Larger ratios W3:W1 provide a greater surface area that is in contact with the load 20. This provides a smoother interface with the load 20 to be engaged and decreases the possibility of binding between the load 20 and the pole guide assembly 16. This also decreases the likelihood of causing damage to the load 20, which is often made of wood or other soft material. Smaller ratios W3:W1 decrease costs by requiring less material to form the pole guide cover 26 and may provide better handling of the load. Smaller ratios W3:W1 allow the pole guide cover 28 to be utilized on existing pole guide assemblies 16 in which the two pole guide tongs 24 are relatively close together in the closed position.
(35) As best shown in
(36) As shown in
(37) As noted above, the mounting segment 38 comprises a left mounting plate 44 and a right mounting plate 46 that are generally parallel to each other. The distance W2 between the two mounting plates 30 is approximately the same or slightly larger than the width W1 of the pole guide tongs 24. In other embodiments of the invention, the operator may vary the distance W2 to accommodate different pole guide tongs 24 of different widths W1.
(38) As shown in
(39) In an exemplary embodiment of the invention illustrated in
(40) The head of the bolt 56, in some embodiments of the invention, may be recessed into the opening 50. In these embodiments, the opening 50 has a shape to accommodate the recessed head of the bolt 56. In other embodiments, the opening 50 has a shape to recess the head of the bolt 56 even if the bolt 56 is not adapted to being recessed. As best illustrated in
(41) The pole guide cover 28 may be connected to the pole guide tong 24 in any manner understood by one of ordinary skill in the art to achieve a secure attachment between the pole guide cover 28 and the pole guide tong 24. In embodiments of the invention, the pole guide cover 28 is removably attached to the pole guide tong 24. The pole guide cover 28 may be removed from the pole guide tong 24 and replaced with a new pole guide cover 28. This may be desirable if the engagement segment 36 degrades due to repeated use in engaging and releasing poles or loads. It may also be desirable to remove a pole guide cover 28 in the event of a defect or mechanical failure or to use the pole guide cover 28 on a different pole guide tong 24. It may also be desirable to remove a pole guide cover 28 and replace it with a different pole guide cover 28 that has a larger ratio W3:W1 if the load 20 is especially soft or fragile and requires extra care.
(42) The mounting segment 38 is formed from a metal or polymeric material. The mounting segment 38 may be formed of the same polymeric material as the engagement segment 36 or may be a different polymeric material or a metal. In some embodiments of the invention the mounting segment 38 and engagement segment 36 are coupled together. In other embodiments of the invention, the engagement segment 36 and mounting segment 38 are unitary or monolithic.
(43) In some embodiments of the invention, the mounting segment 38 further comprises a back mounting plate (not illustrated) that covers all or a portion of the mounting segment 38 along the convex exterior surface 34 of the pole guide cover 28. In certain embodiments of the invention, the back mounting plate is coupled with the concave exterior surface of at least one of the left mounting plate 44, the right mounting plate 46, or the bull nose 52. In this embodiment, the pole guide tong 24 is slid into the recess 48 of the pole guide cover 28, to some extent. This back mounting plate could be manufactured of metal or a polymeric material. In one embodiment of the invention, the back mounting plate is removable. In this embodiment, it can be added by the operator in a situation where additional strength and stability is desirable. The back mounting plate may also have openings (not illustrated) for at least one mounting fastener (not illustrated).
(44) In some embodiments of the invention, a pole guide cover 28 may have the mounting segment 38 only partially cover the pole guide tong 24. In other embodiments of the invention, that the pole guide cover 28 may completely cover the pole guide tong 24. The pole guide cover may also substantially cover the pole guide tong 24 similar to a sleeve such that the distal end and the sides of the pole guide tong are enclosed by the pole guide cover 28. In other embodiments of the invention, the pole guide cover 28 covers less of the pole guide tong 24 than depicted in
(45) Referring now to
(46) As illustrated in
(47) While the particular length and shape of the pole guide cover 28 may vary substantially without departing from the scope, the sizes of an exemplary embodiment of the pole guide cover 28 will now be discussed. In one embodiment, pole guide cover 28 has a length within the range of from about six inches to about three feet that is specifically designed to match with a given type of pole guide tong. In another embodiment, the pole guide cover 28 is manufactured in various lengths and shapes designed to adapt to a number of existing pole guide tongs. For example, the pole guide cover 28 may come in sizes of six inches, one foot, one and one-half feet, and two feet. In this example, the operator selects the pole guide cover 28 which most closely matches the desired dimensions of the pole guide tong 24 to be covered. In other embodiments of the invention, the operator or other person may specially order a pole guide cover 28 by giving the precise dimensions required to a manufacturer of pole guide covers 26. Optionally, the operator is given various features, sizes, and materials that characterize the pole guide cover 28.
(48) In embodiments of the invention, the pole guide cover 28 is compatible with existing pole guide tongs 24 on pole guide assemblies 16. In this respect, existing pole guide assemblies 16 may be retrofitted with pole guide covers 28 to take advantage of the one or more benefits described herein. For example, an existing pole guide tong 24 can be adapted to receive a mechanical attachment, such as by drilling openings (not illustrated) in the pole guide tong 24 that correspond to openings 50 in a pole guide cover 28. The drilling could be accomplished by mechanical means, laser, water jet cutter, or other method. In such an embodiment, the pole guide cover 28 is securely attached to the pole guide tong 24. Alternatively, or additionally, the pole guide cover 28 may be secured to the pole guide tong via chemical means such as with applying an adhesive to the pole guide tong 24 prior to putting the pole guide cover 28 in place or welding the mounting segment 38 to the pole guide tong 24.
(49) In other embodiments of the invention, the pole guide tongs 24 are originally manufactured to have openings (not illustrated) that correspond with the openings 50 in the pole guide cover. In still another embodiment, the pole guide tongs 24 are manufactured and/or sold with the pole guide cover 28 already attached thereto. In yet further embodiments of the invention, the operator may selectively add and remove the pole guide covers 26 from the pole guide tongs 24 as required by the specific application. The operator, according to another embodiment, could also employ a number of different types, shapes, and sizes of pole guide cover 28 based upon the specific application.
(50) Although the invention has been described with reference to the exemplary embodiments illustrated in the attached drawings, it is noted that equivalents may be employed and substitutions made herein without departing from the scope of the invention as recited in the claims. For example, while the assembly has been illustrated and described as including two load-securing pole guide tongs 26, it will be appreciated that more than two pole guide tongs may alternatively be included and used to engage the load. Furthermore, the mounting hardware represents one, exemplary method of mechanically connecting the pole guide cover 28 and pole guide tong 24. Other methods may be used without departing from the scope of the invention including, by way of example, a screw.