US1628505A - Extension step - Google Patents

Description

May 1011927. 1,628,505

E. R. LU NDQUIST EXTENSION STEP Fil ed Sept. 24. 1926 2 Sheets-Shoot 1 f Z7 Z0 l filand'gaza INVENTOR BY M o WITNESS: ATTORNEY May 10, 1927. 1 628,505

E. R. LUNDQUIST EXTENSION STEP Filed Sept. 24. 1926 2 Sheets-Sheet 2 Z Lzozofyzzas INVENTOR WITNESS: ATTORNEY Patented May 10, 1927.

UNITED STATES PATENT'OFFICE.

ERNEST R. LUNDQUIST, 0F LINCOLN, NEBRASKA.

EXTENSION s'rnr.

Application filed September This invention relates to improvements in steps especially designed for vehicles and has for an object the provision of auxiliary steps adapted to be attached to the main steps of a car or other vehicle, so as to promain steps, and which in addition are simple and durable in construction; are provided. with novel means to hold them against accidental movement, and may he readily .moved to an active or inactiveposition.

Vith the above and other objects in view, the invention further includes the following novel features and details of construction, to he hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claims.

In the drawings Figure 1 is an elevation showing a fragmentary portion of a car with the invention applied, the auxiliary steps being shown in extended position.

Figure 2 is a similar view with the auxiliary steps folded.

Figure 3 is a front view with the parts in the position shown in Figure 1.

Figure 4 is a fragmentary section. on the line 4t-4t of Figure 2.

Figure 5 is a detail perspective view of one of the risers of the auxiliary steps.

Figure 6 is a. similar view of one of the treads.

Figure 7 is an enlarged fragmentary section on the line 7-7 of Figure 3.

Referring to the drawings in detail wherein like characters of reference denote corresponding parts, the reference character C indicates a portion of a car, from the platform P of which extend the usual permanent or main steps S. These steps are of the usual or any preferred construction and include side walls 10. while the auxiliary steps are secured to and extend from the lowermost of the main steps.

The auxiliary steps comprise treads 1.1 and risers 12, the latter having their opposite edges hingedly secured to the front and rear edges of the treads as shown at 13 and 1 1. For this purpose, the treads and risers are provided with spaced eyes 15 for the passage of pivot pins or pivot rods.

The front edges of the treads 1.1 are provided between the eyes 15 with downwardly extending flanges 16. whicluin the case of one of the treads. hinges over the adjacent edge of one of the risers and acts to limit outward pivotal movement of the latter. Extending along the inner edge of the treads 11 between the eyes 15 is an upwardly ex tending flange 17 which engages the adjacentedge of the adjacent riser and acts to limit downward pivotal movement of the treads.

The topn1o1t riser 12 is hingedly secured. as shown at 18 to the bottom steps 10, so that the auxiliary steps may be folded up ward and in ard beneath the steps 10 as shown in Figure 2 of thedrawings, or may he extended downward and outward as shown in Figures 1 and 3.

Secured to the lowermost tread at opposite ends thereof are bars 19. These bars incline upwardly and inwardly and have their upper ends received in guide housings 2-0. which are provided with slots 21. The bars 19 carry outwardly extending pins 22 which have pivotally mounted thereon links 23. These links are in turn pivotally mounted to arms 24 whose inner ends are rigid upon the outer ends of a rock shaft 25. This shaft is mounted in bearing brackets 26 which are secured to and depend from the main steps 10, so that by rocking the shaft 25, the bars 19.1nay he slid upwardly so as to fold the steps as shown in Figure 2 of the drawings. Secured to the rock shaft 25 is an operating handle 26, which, when .in the raised position shown in Figure 2 is adapted to be received within a yoke 27 which is pivotally mounted upon the main steps 10 as shown at 2 hen in their lowered or extended position. the auxiliary steps carry lugs 29 which engage the edges of the bars 19 and act to resist outward swinging movement. of the steps when the latter are in their lowered position.

.It will he apparent from the foregoing description and accompanying drawings that the invention provides a simple strong and dn able set of auxiliary steps which may be attached to main steps for the purpose of ln'oviding an extension for the latter. wherehy passengers passing into and out of cars or similar vehicles may do so with comfort and convenience and without the risk attendant upon the use of the stool usually employed for that purpose. Frequently, a stool will tilt, so that the passenger is in danger of injury'o-r inconvenience from this cause.

The invention is susceptible of various changes in its form, proportions and minor details of construction and the right is herein reserved to make such changes as properly fall within the scope of the appended claims.

Having described the invention what is claimed is:-

l. The combination with main steps, of auxiliary steps hingedly secured to the main steps, means hingedly connecting the risers and threads of the auxiliary steps to permit the sad auxiliary steps to told upward beneath the main steps. and an inclined bar extending upwardly and inwardly from each side of the lowermost auxiliary step, means at opposite sides of the main steps to slidingly receive the bars, a rock shat't extending trai'isversely across and supported beneath the main steps. an arm secured to one end of the rock shajlt. a link connecting the arm and one of the inclined bars, whereby rocking movement ot' the sliatt will move the bars longitudinally to told or extend the auxiliary steps, an operating lever secured at one end of the shaft and means to hold the lever against operation.

2. The combination with main steps. of auxiliary steps hii'igedly secured to the main steps, means hingedly connecting the risers and treads ot' the auxiliary steps to permit the said auxiliary steps to fold upward beneath the main steps, and an inclined bar extending upwardly and inwardly from each side of the lowermost auxiliary step, means at opposite sides ot the main steps to slidauxiliary steps hingedly secured to the main steps, means hingedly connecting the risers and treads of the auxiliary steps to permit the said auxiliary steps to fold upward beneath the main steps, an inclined bar extending upwardly and inwardly 'lrom each side of the lowermost auxiliary step, means at opposite sides oil the main steps to slidingly recei e the bars, lugs extending from opposite sides oi the auxiliary steps and engaging the bars to resist outward swinging movement o'li said auxiliary steps. rock sha'lt extending transversely across and supported beneath the main steps, an arm secured to one end of the rock sh-alt. a link connecting the arm and one of the inclined bars, whereby rocking movement of the shaft will move the bars longitudinally to told or extend the auxiliary steps, an operating lever secured to one end of the shaft and means to hold the lever against operation.

i. The combination with main steps, of auxiliary steps hingedly secured to the main steps, means l'iingedly connecting the risers and treads ot the auxiliary steps to permit said auxiliary steps to tt'old upward beneath the main steps, means carried at opposite edges ot' the treads and engaging the risers ot' the auxiliary steps to limit independent pivotal movement of said treads and risers in one direction, and means connecting the main and auxiliary steps to move the latter to an active or inactive position.

5. The combination with main steps, of auxiliary steps hingedly secured to the main steps. means hingedly connecting the risers and threads of the auxiliary steps, to permit the said auxiliary steps to told upward beneath the main steps, flanges extending along opposite edges of the threads and engaging the risers oi' the auxiliary steps to limit independent pivotal movement of said treads and\ risers in one direction and means connecting the main and auxiliary steps to move the latter to an active or inactive position.

In testimony whereof I atlix my signature.

ERNEST It. LUNDQU

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