US1047322A

US1047322A - Collapsible carriage.

Info

Publication number: US1047322A
Application number: US67541212A
Authority: US
Inventors: Christopher Steele Spofford; Frederick William Jonas
Original assignee: STURGIS STEEL GO CART CO
Current assignee: STURGIS STEEL GO-CART Co; STURGIS STEEL GO CART CO
Priority date: 1912-02-05
Filing date: 1912-02-05
Publication date: 1912-12-17
Anticipated expiration: 1929-12-17

Description

C. s. SPOFFGRD @L P. W. JoNAs.

GOLLAPSIBLE CARRIAGE.

APPLICATION FILED PEB.5,1912.

1,047,322, Patented Dec. 17, 1912.

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SMQ/MOM c. s. SPOPPORD & F. W. JONAS.

y GOLLAPSIBLE CARRIAGE. APPLlcATIoN HLBD H1315, 1912.

Patented Dec. 17, 1912.

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0. s. SPOIPORDIL P. W. JONAS.

OOLLAPSIBLE CARRIAGE.

APPLICATION FILED IBB. 5,1912.

Patented Dec. 17, 1912.

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COLUMBIA PLANDGRAPH -C0..'w^SHINaToN, D. c.

UNITED STATES PATENT FFICE.

CHRISTOPHER STEELE SPOFFORD ANI) FREDERICK WILLIAM JONAS, OF STURGIS, MICHIGAN, ASSIGNORS TO STURGIS STEEL Gro-CART CO., 0F 'STURGI MICHIGAN.

COLLAPSIBLE CARRIAGE.

Specification of Letters Patent.

Patented nee. Iv, reis.

Application led February 5, 1912. Serial No. 675,412.

vSPoirroRD and FREDERICK WILLIAM JONAS,

citizens of the United States, residing at Sturgis, county of St. Joseph, and State of Michigan, have invented certain new and useful Improvements in Collapsible Carriages, of which the following is a specication.

This invention relates to improvements in collapsible carriages.

The main objects of this invention are, iirst, to provide an improved means for locking the carriage in its erected position which is very secure and capable of withstanding severe strains and wear without being liable to become accidentally unlocked or released to permit collapsing. Second, to provide an improved collapsible carriage having these advantages which is easily released or unlocked when desired for collapsing. Third, to provide an improved collapsible carriage in which the wheel supports are effectively carried or swung to their erected position.

Further objects, and objects relating to structural details, will deiinitely appear from the detailed description to follow.

IVe accomplish the objects of our invention by the devices and means described in the following specification.

The invention is clearly dened and pointedvout in the claims.

A structure which is a preferred embodiment of our invention is clearly illustrated in the accompanying drawing, forming av part of this specification, in which:

Figure I is a side elevation of a structure embodying the features of our invention, portions of the handle and wheels being broken away. Fig. II is an inverted view, the rear portion of the running gear frame and the wheels being omitted the rear portion of the running gear frame and portions of the wheel spindles being broken away. Fig. IIIV is a detail longitudinal vertical section taken on a line corresponding to line 3-3 of Fig. II. Fig. IV is a detail vertical section taken on a line corresponding to line 4 4 of Fig. II, show ing details of the wheel braces and their actuating and locking means. Fig. V is a detail vertical section taken on a line corresponding to line 5-5 of Fig. I, showing de tails of the front wheel supporting braces. Fig. VI is a section taken on a line corresponding to line 6-6 of Fig. V.

them in detail herein.

In the drawing, similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Referring to the drawing, the running gear frame l is in the structure illustrated, formed of tubing'bent to a U-shape. The handle 2 is secured to the rear end of the frame by pivots 3.

On each side of the side bars of the run? ning gear frameare hangers 4 for the wheel supports 5. These wheel supports are pivotally supported by these hangers and have downwardly projecting arms 6 terminating in spindles 7 for the wheels 8.

A pair of levers 9 are mounted on the side bars by means of the pivots 10, the lower ends of the levers projecting below the side bars to engage the cam members l1 on the wheel supports. As the levers are actuated, the wheel supports are swung to collapse or erect the same. The levers are connected to the handle 2 by links 12 so that when the handle is collapsed forwardly upon the running gear frame, the lower ends ofA handle is swungrto its erected position, the s The details of wheel supports are actuated. these cam members form no part of our present invention -and we do not describe As our present invention does not relate to the structural details of the seat 13 and Vthe foot rest 14, we do not describe the same in detail herein.

The wheel supports are braced and the levers 9 locked in their erected position,

thereby locking the carriage in its erected j position by means of brace members 15 which are pivoted to the ruiming gear frame at 16, the upper ends of the braces being eX- tended rearwardly beyond the pivots.

The braces 15 are connected by the links 17 to the levers 9, the links being connected to the levers by the pivots 18 and to the braces by the pivots 19. 0n the wheel supports are forked clips 2() adapted to engage the braces when the parts are in their erected posit-ion. j

The

pivots

16 and 19 are so disposed relative to each other that when the braces are in their engaging position, the pivots 19 swing past a plane running through the

pivots

16 and 18 thus providing a locking toggle.

To relieve the parts of undue stress or' strains when the carriage is erected, and to prevent the accidental breaking of the toggle, we provide locking members 21 which are pivoted at 22 on the braces 15 and provided with inclined engaging members 23 at their rear ends adapted to engage the downwardly projecting inclined keepers 24 on the links 17. These keepers 24k and the engaging portions of the members 21 are preferably serrated to add to their frictional engagement. The braces 15 are provided with a cross piece 25 adapted as a foot piece for forcing them into engagement with the clips 20 on the arms of the wheel supports.

rl`he members 21 are provided with lateral projections 26 at their forward ends adapted to coact with the links 17 so that the members 21 are forced to their engaging position as the links are forced int-o position by the engagement of the braces.

The springs 27 are secured to the hooks 2S on the braces and to hooks 29 on the members 21. The members 21 are connected by cross piece 30 adapted as a foot piece for the disengagement of the locking members.

The disengaging movement of the members 21 causes their forward ends to engage the links 17 and continued movement breaks the toggle and disengages the braces 15 so that the disengaging movement of Vthese members 21 not only swings the locking members out of their engaging position, but also breaks the toggle and disengages the braces. This arrangement of parts is very effective as a locking means and in supporting the members so that they are capable of withstanding severe strains without rendering the carriage liable to accidental collapse.

To brace the front arms 6 of the wheel supports and to insure the complete erection of the same even under such conditions as when a part of the weight of the carriage is allowed to rest upon the wheels during the erecting, we provide braces 31 for the front wheels, the braces being pivoted at 32 to the running gear frame and connected by the links 33 to the levers 9. These links are pivoted to the levers 9 at 34 below the pivots 10 for the levers, while the pivots 18 for the links 17 are above the pivots 10 so that the front and rear braces are swung in opposite direct-ions.

The braces 31 are provided with cams 35 which engage the front arms 6 and force or carry them to their erected position as the braces are swung into position by the links.

At the ends of the cams are clips 36 adapted to engage t-he arms when the parts are fully erected, the clips being formed on the ends of the braces. The braces are connected by cross piece 37 to add to their rigidity. By this arrangement of parts, we provide a structure in.` which the wheel supports are positively carried to their erected position and relieve the levers and cams of undue strain or stress. These braces coacting with the rear braces described, support the wheel supports in their erected position so that the wheels are not likely to get out of alinement. And further, the carriage is enabled to sustain very heavy loads.

We have illustrated and described our improvements in detail in the structure in which we have embodied the same. We are aware that they are capable of embodiment in other structures, but as we believe the disclosure made will enable those skilledin the art to apply our invention as conditions or taste dictates, we have not attempted to illustrate or describe the various modifications possible. TNe desire, however, to be understood as claiming the invention specically in the form illustrated as well as broadly within the scope of the appended claims.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is:

1. In a folding carriage, the combination with the running gear frame, of collapsible wheel supports; a handle pivotally mounted on said frame; means for actuating said wheel supports comprising levers pivotally mounted on said frame; connecting links for said levers to said handle; braces for said wheel supports pivotally mounted on said running gear frame; connecting links for said braces to said levers, the connecting pivots for said links to said braces being adapted to swing past the center of the pivots for said braces; rearwardly facing forked clips adapted to receive said braces, said braces being provided with a cross piece adapted for a foot piece for forcing said braces into engagement with said clips; locking members pivotally mounted on said braces, said links being provided with forwardly facing inclined serrated keepers at their rear ends, said locking members having coacting inclined serrated engaging portions, the forward ends of said locking members being adapted to engage said links when said locking members are disengaged; springs connected to the forward ends of said locking members and braces; and a cross piece connecting said locking members adapted as a foot piece.

2. In a folding carriage, the `combination with the running gear frame; of collapsible wheel supports; a handle pivotally mounted on said frame; means for actuating said wheel supports comprising levers pivotally mounted on said frame; connecting links for said levers to said handle; braces for said wheel supports pivotally mounted on said running gear frame; connecting links for said braces to said levers, the connecting pivots for said links to said braces being adapted to Swing past the center of the'pivots for said braces; rearwardly facing forked clips adapted to receive said braces, said braces being provided wit-h a cross piece adapted for a foot piece for forcing said braces into engagement with said clips; looking members pivotally mounted on said braces, said links being provided with forwardly facing keepers at their rear ends, said locking members having coacting engaging portions, the forward ends of said locking members being adapted to engage said links when said locking members are disengaged; springs connected to the forward ends of said locking members and braces; and a cross piece connecting said locking members adapted as a foot piece.

3. In a folding carriage, the combination with the running gear frame, of collapsible wheel supports; means for actuating said wheel supports comprising pivotally mounted levers; pivotally mounted braces for said wheel supports; connecting links for said braces to said levers; locking members pivotally mounted on said braces, said links being provided with forwardly facing inclined serrated keepers at their rear ends, said locking members having inclined serrated keeper engaging portions, the forward ends of said locking members being adapted to engage said links when said locking members are disengaged; springs connected to the forward ends of said locking members and braces; and a cross piece connecting said locking members adapted as a foot piece.

4. In a folding carriage, the combination with the running gear frame, of collapsible wheel supports; means for actuating said wheel supports comprising pivot-ally mounted levers; pivotally mounted braces for said wheel supports; connecting links for said braces to said levers; locking memers pivotally mounted on said braces, said links being provided with keepers at their rear ends, said locking members having keeper engaging portions, the forward ends of said locking members being adapted to engage said links when said locking members are disengaged; springs connected to the forward ends of said locking members and braces; and a cross piece connecting said locking members adapted as a foot piece.

In a folding carriage, the combination with the running gear frame, of collapsible wheel supports; means for collapsing and erecting said wheel supports, comprising a lever pivoted to said frame and connected to said wheel supports; a pivoted brace for said wheel supports when in their erected posit-ion; a link connecting said brace to said lever, said link being adapted to swing past the center of the brace pivot when the brace is in engagement with said wheel supports; and a member pivotally mounted on said brace with one end adapted to engage said link whereby when the member is actuated said link and brace are swung upward, said member being also adapted to engage the rear end of said link to lock the same when the carriage is erected.

6. In a folding carriage, the combination with the running gear frame, of collapsible wheel supports; means for actuating said wheel supports comprising pivotally mounted levers; pivotally mounted braces for said wheel supports; connecting links for said braces to said levers; locking members pivotally mounted on said braces, said links being provided with keepers, said locking members having coacting keeper engaging portions; and springs for said locking members.

7. In a folding carriage, the combination with the running gear frame, of collapsible wheel supports; means for actuating said wheel supports; a locking toggle for wheel support actuating means, one member of the toggle being arranged to serve as a brace for said wheel supports when the carriage is in its erected position; and a lever-like member pivotally mounted on said brace toggle member and adapted to engage the other member of the toggle to lock the toggle when the toggle is in its actuated or locking position and to engage such toggle member when the lever-like member is actuated to break the toggle.

8. In a folding carriage, the combination with the running gear frame, of collapsible wheel supports; means for actuating said wheel supports comprising a lever; a brace for said wheel supports; a link connecting said brace and lever; a member pivotally mounted on said brace member to engage said link to lock the part-s in their actuated position and when said member is actuated to release the same to engage said link and swing said brace to its inoperative position.

9. In a folding carriage, the combination with the running gear frame, of collapsible wheel supports; means for actuating said wheel supports; a locking toggle for said wheel support actuating means; and a member for breaking said toggle, adapted also as a toggle lock.

In witness whereof, we have hereunto set our hands and seals in the presence of two witnesses.

CHRISTOPHER STEELE SPOFFORD. FREDERICK WILLIAM JONAS. Witnesses:

EVA PARKER,

J. W. BENNETT.

Copies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents, Washington, D. C.

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