US2391810A - Pole climbing spur - Google Patents

Description

Dec. 25, 1945. H. R. WEBBER POLE CLIMBING SPUR Filed Feb. 27, 1945 ATTORNEY.

INVENTOR.

vwyfm Patented Dec. 25, 1945 UNITED STATES PATENT OFFICE POLE CLIMBING SPUR Harry R. Webber, Norwood, Pa.

Application February 27, 1945, Serial No. 579,949

Claims.

In pole climbing spurs as heretofor manufactured, the foot of the wearer is supported on a narrow bar which contacts with only a small portion of the bottom of the foot.

As a result of this comparatively small supporting surface, the weight of the wearer is concentrated on the arch of the foot, and in time, the arches of the feet are so seriously affected that a linesman cannot continue to use spurs in pole climbing but must seek some other kind of work.

The main object, therefore, of this invention is to devise a novel climbing spur which will overcome the foregoing objection in spurs as heretofore made by providing a preferably full supporting surface for the bottom of the instep and the sole of the foot. The member forming such supporting surface is preferably movably carried by the supporting bar fastened to the leg of the wearer so that it does not interfere with normal walking.

A further object of the invention is to mount the spur on the leg bar so that it can be readily removed for the purpose of sharpening it,

With the foregoing and other objects in view as will hereinafter clearly appear, my invention comprehends a novel climbing spur.

It further comprehends a novel construction of a leg bar, and a novel construction of a footsupport which is movably carried by the leg bar in such a manner that downward relative movement of the foot support on the le bar is prevented and upward relative movement is permitted.

For the purpose of illustrating the invention, I hav shown in the accompanying drawing a preferred embodiment thereof, which I have found in practice to give satisfactory and reliable results. It is however to be understood that this embodiment is typical only. and that the various instrumentalities of which the invention consists can be variously arranged and organized and the invention is not limited to the exact arrangement and organization as herein shown.

Figure 1 is a perspective View of a pole climbing spur, embodying my invention.

Figure 2 is a side elevation thereof, with one strap omitted and the other strap broken away.

Figure 3 is a bottom plan view of a portion of a foot support.

Figure 4 is a top plan view, partly in section and partly broken away for purposes of illustration.

Similar numerals of referenc indicate corresponding parts.

Referring to the drawing:

The pole climbing spur has a body portion in the form of a channel bar I for attachment to the leg of the user, the bar at its lower portion being laterally deflected as at 2 and provided at its rear portion with spaced lugs 3.

4 designates a, foot supporting plate conforming substantially to the contour of the bottom of a persons foot, and provided with spaced lugs 5 to register with the lugs 3, and to be movably connected therewith by a pintle B to form a hinged connection. The plate 4 is preferably made of metal such as aluminum or magnesium and may be provided with ribs 1 to prevent deformation and provide traction when the user is walking on the ground,

The bar I is preferably deflected outwardly for clearance and near its upper end it is provided with a loop 8 which receives a strap 9.

The lateral extension 2 of the bar I has loops I0 which receive a strap II adapted to be fastened around the instep of the wearer of the spur.

I2 designates the spur which is pointed to adapt it to be forced into a pole or tree, and is preferably made of tool steel. The spur I2 can be secured to the bar I in any desired manner but is preferably removable so that it can be sharpened by grinding. As shown the spur I2 has a stud extending through an opening I4 in the bar and provided with a nut I3. If a slot is used for the opening I4 the position of the spur I2 relatively to the bar and the foot can be adjusted as may be desired.

The manner in which the pole climbing spur is used is well known to those skilled in this art, and a detailed description thereof is believed to be unnecessary.

The foot supporting member 4 provides a full support for the bottom of the foot in advance of the heel, thereby preventing the falling of the arches of the feet.

Due to the manner in which the member 4 is hinged to the lateral extension of the bar I, it does not interfere with the operation of walking or in the climbing of a pole.

The lateral extension 2 of the leg bar may terminate in an upward extension I5 which contributes to prevent relative lateral movement of the shoe and plate in one direction.

In some cases, it is advantageous to employ a strap I6 having its parts connected with the extension I5 and the body portion of the leg bar and adapted to be secured around the leg of the user to maintain the heel of the shoe against the plate and the extension 2.

Having thus described my invention, what I claim as new and desire to secure by Letters Patcut is:

1. In a pole climbing spur, a leg bar in the form of a channel and having at its lower portion a lateral extension, a spur fixed to said leg bar, a foot supporting member to receive the bottom of the foot in advance of the heel and hinged to said lateral extension, means to secure the leg bar to the leg of the user, and fastening means to pass around the foot supporting member and the shoe of the user of the spur.

2. The construction set forth in claim I having the spur secured in the channel of the le bar.

3. In a pole climbing spur, a leg bar in the form of a channel having a lateral extension at its lower end provided with spaced lugs, a spur fixed to the leg bar and seated in said channel, a foot supporting plate having spaced lugs to register with the lugs of said extension, 9. pintle connecting the lugs, and means to secure the leg bar to the user.

4. In a. pole climbing spur, the construction set forth in claim 1 having the lateral extension terminating in an upward extending portion.

5. The construction set forth in claim I having in addition a fastening strap connected with the leg bar and adapted to pass around the foot of the user to retain the heel of the shoe of the user in proximity to the rear end of the foot supporting member.

HARRY R. WEBBER.

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