US2569889A - Sled runner - Google Patents

Description

C. F. HERBERT Oct. 2, 1951 SLED RUNNER 2 Sheets-Sheet 1 Filed Deg. 2, 1948 Inventor 0/1 ar/e's F. Herb err u n. U u a? Q. F HERBERT SLED RUNNER 2 Sheets-Sheet 2 Filed Dec. 2, 1948 Charles E Herbert INVENTOR.

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BY a Mg-W Patented Oct. 2, 1 951 OFFICE SLED RUNNER Charles F. Herbert, Seattle, Wash.

Application December 2, 1948, Serial No. 63,175

This invention relates to new and useful improvements and structural refinements in sleds, and the principal object of the invention is to provide a massive, sturdily constructed sled, such as may be conveniently, effectively and reliably employed for transporting extremely heavy loads over snow or ice covered terrain, such as for example, for hauling timber or mineral ore in northern territorial regions.

An important feature of the invention resides in the construction of the sled runners, these being provided with resilient mountings which not only effectively absorb shock, but permit the runners to adjust themselves to uneven contours of the terrain over which they travel.

A still further feature of the invention involves the provision of what may be referred to as a sharp keel on each runner, whereby the latter is effectively guided and lateral slippage thereof is substantially minimized.

With the above more important objects and features in view and such other objects and features as may become apparent as the specification proceeds, the invention consists essentially of the arrangement and construction of parts as illustrated in the accompanying drawings, in which:

Figure 1 is a side elevational view of the invention;

Figure 2 is a cross sectional view on an enlarged scale, taken substantially in the plane of the line 22 in Figure 1;

Figure 3 is a side elevational view of one of the runners used in the invention, the same being partially broken away so as to reveal its construction;

Figure 4 is a cross sectional view, taken substantially in the plane of the line 4-4 in Figure 3; and

Figure 5 is a perspective view of one of the resilient mountings used in the invention.

Like characters of reference are used to designate like parts in the specification and throughout the several views.

Referring now to the accompanying drawings in detail, the invention consists of a sled designated generally by the reference character 20, the same consisting primarily of an elongated bed 22 and a set of front and rear runners 24, 26, respectively.

In effect, the designations front and rear as used herein are employed for illustrative purposes only, since the sled is quite capable of traveling in either direction, so that what is termed, for example, front may be simply re- 3 Claims. (Cl. 280-28) 2 versed" to become rear and vice versa. How ever, for convenience of explanation theseterms will be used as aforesaid.

The runners in the front and rear sets 24, 26 are similar in construction, so that a description of one will suffice for all.

Each of these runners consists. of what may be called a shoe 50 having upturned end portions 52, this shoe preferably being equipped with a bottom rail 54 on which the runner may freely slide.

The runner also includes in its construction a frame 56 having an inverted U-shaped crosssectional configuration, an intermediate portion of this frame preferably being equipped with inner and outer cover plates 58, 60, respectively. A pair of spaced parallel angles 62 are secured to the shoe 50 and have mounted therebetween an upwardly extending support plate 64 and a downwardly extending keel 66, as it may be called. the latter projecting through a suitable slot 68 with which the shoe 50 is provided (see Figure 3) so that this keel may embed itself in ice or snow and. thereby effectively guide the runner along a straight path, thus preventing lateral slippage.

As is best shown in Figure 3, sets of horizontally disposed lugs 10 are struck out from either or both of the channels or angles 62 and suitable bolts 14 extend through these lugs for the purpose of securing the rails 54 in position on the shoe 50, as will be clearly apparent.

A pair of resilient mountings 16 are secured to the opposite sides of the upper portion. of the plate 64, each of these mountings consisting of a pair of spaced parallel straps l8 bonded together by an intervening layer of resilient material such as rubber, or the like, the straps 18 having beveled longitudinal edges 82 which are slidably positioned, under pressure fit, in complementarily beveled or dove-tailed guides 84 provided on the plate 64 and on the side members of the aforementioned frame 56, as is best shown in Figure 4.

By virtue of this arrangement the shoe 5!) is attached to the frame 56, but the resilient bonds 80 permit plate 62 and the shoe 50 a limited amount of movement in a vertical plane, so that the shoe 50 of the runner may effectively adjust itself to irregularities of the terrain over which it travels, in addition to the primary purpose of the mountings 16, that is, of absorbing shocks.

The runners 24, 26 may be connected to the sled bed 22 in any suitable manner, such as, for example, by the mounting units 86.

It is believed that the advantages and use of 3 the invention will be clearly apparent from the foregoing disclosure and, accordingly, further description thereof at this point is deemed unnecessary.

While in the foregoing there has been shown Having described the invention, what is claimed 7 as new is:

elongated shoe, an upstanding support plateprdvided on said shoe, a pair of parallel frame members straddling the upper portion of said plate in spaced relation, and resilient mountings interposed between said frame membersand said plate wherebylimitfid m vement of said plate in a vertigal plane. is facilitated,,ea ch of said mountings comprising a pair of spaced parallel straps and a,,bqr d of re ilient material securing said straps tcgeibenon strap ac m u ng being s cured to said plates and the. second strap being sequ edtg on Q? aid ra e rsa s ed. run e the comb nation of an cl ne e hae hav n unturned. end an p stansi ng sunpcrt plate. ec red o a intermedia ea ing Surfaces. In a Sled er, the combination ofan l5 portion of said shoe, a pair of resilient mountings provided at the sides of the upper portion of said plate and each including a pair of spaced parallel straps and a bond of resilient material securing said straps together, one strap of each mounting being secured to said plate, a pair of spaced frame members each secured to the remaining straps of said mountings, and pivot means carried by said frame members whereby the runner may be attached to a'sled bed.

3. The device as defined in claim 2, wherein said-pivot means includes radial and end thrust CHARLESF. HERBERT.

REFERENCES CITED The following references are of record in the file of-this patent:

UNITED STATES PATENTS 42,320 Switzerland Nov. 17, 1930

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