US1517854A - Cushion-stuffing machine - Google Patents

Description

Dec. Z, '1924.

J. H. NELSON CUSHION S'TUFFING MACHINE 2 Sheets-Sheet 1 Fied April 17, 1922 Dec. l2, 1924. 1517,854

. l J. H. NELSON CUSHION STUFF-ING MACHINE Filed April 1'7, 19.22 2 Sheets-Sheet 2N @Fo ABQ m4 l 0 Patented ec. 2, 1924.

UNITED SIA'ES Larissa OFFICE.

JOHN H. NELSON, OF CHICAGO, ILLINOIS, vASSIGrNOR TO PULLIVIAN DAVENPORT & UPHOLSTERED FURNITURE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION O'F ILLINOIS.

CUSHION-STUFFING MACHINE.

Application filed April 1'7, v1922.

T all whom t may concern.'

Be it known that I, Jol-1N I-I. NELSON, a citizen of the United States, residing` at Chicago, in the county of Cook and State of Illinois, have invented certain new and use-- ful Improvements in a Cushion-Stuiiing Machine, of which the following is a specification.

rIhis invention relates to a machine for filling cushions with an assembled padding, upholstering springs and the like, by the action of a plunger. The principal objects of the invention are: to produce a simple mechanical structure for the purpose described;

to insure that the plunger is returned im'- mediately after its forward movement; to prevent the continued operation of the plunger if the operating means is continuously engaged, to insure that the plunger has been fully retracted before it can be operated; and in general, to produce the construction herein shown and described.

In the accompanying drawings, Fig. 1 is a side elevation of a machine constructed in accordance with the principles of this invention; Fig. 2 is a plan view of the machine; Fig. 3 is a section of the operating mechanism; Fig. 4 is a detail of the operating clutch; and Fig. 5 is a detail section taken on the line 5-5 of Fig. 3.

In a cushion stuffing mechanism of this kind it is customary to have a fixed table and a hinge cover each composed of a central fixed plate 4 and'adjustable side pieces 5, the edges of which overlap for moving the side pieces 5 to accommodate cushions of different sizes. The cushion stuffing, consisting of upholstering springs, padding, or any suitable material, is assembled upon the table, the hinged cover is moved down and clamped in position, the sides 5 are adjustable in width, and a cushion cover open at one side is slipped over the extending end of the table and its cover. The assembled stuffing is then projected by means of a plunger 6 into the cushion cover which is thereby forced off to the end ofthe table, with the upholstered filling inside of it.

Brackets 7 are provided at the sides of a supporting frame 8, and the side members 5 are adjustable on cross pieces 9 which are attached to supports 10 pivoted in the brackets 7. These supports carry adjustable weights 11 for counterbalancing the hinged cover.

Serial No. 553,741.

A lever 12 is pivoted at the bottom of the frame with a tread 13 which may be engaged by the foot of an operator, and Vconnected to this lever at each side of the frame are arms 14 with hooks 15 at the upper ends adapted to engage pins or projections 16 at the side of each of the supports 10. Extending between the arms 14 and the frame are springs 17 which tend to raise the hook arms so that they are moved to an upward position to engage the projection 16 of the cover when it is in a partially lowered position. The cover may be held down by pressure on the lever 12 and the hooked ends of the arms 14 may lbe moved out of the path of the projections 16, in releasing the cover, by means of pivoted release arms 18 each having a projection 19 to engage the edge of the adjacent arm 14.

Extending rearwardly from the plunger 6 is a plunger rod 20 which carries a yoke 21 adjacent its rear end. A bearing block 22 is vertically slidable in this yoke 21 and is carried by a lever 23 pivotally mounted at the bottom of the frame 8. Attached intermediate the ends of the lever 23 is a driving rod 24 which is pivoted between the crank wheels 25 mounted in horizontal bearings at the rear of the frame. A driving gear 26 is also freely mounted on a shaft 27 to which one of the crank wheels 25 is attached, and between the gear 26 and this wheel 25 is a clutching mechanism for connecting the gear to the shaft when desired. The driving gear is connected to a driving pinion 28 mounted on a shaft 29 upon which is a pulley 30 for a belt connection to any suitable source of power.

The clutching mechanism comprises a spring pressed clutch pin 31 carried by the driving gear 26 and normally pressed toengage in a notch 32 at the edge of a clutch member 33 which is keyed to the shaft 27. A control member 34 has a ring shape portion 35 mounted to swing upon the clutch member 33, and with an arm 36 for controlling the movement of the member. The movement is effected by means of a rod 37 attached to the arm 36 and connected at the front of the machine to a bell crank 38 having a pedal 39 for actuating it by the foot of an operator. The edge of the ring portion of this control member 34 is preferably in the path of the clutch pin 31, and at one portion there is a raised surface 40 about the length of the notch 32 and of the height of the Outer face of the clutch member 33 with an inclined approach 4l in advance of the raised surface.

As the driving gear 26 is rotated it carries with it the clutch pin 3l which rides upwardly upon the inclined approach ll and upon the surface 410 with each rotation of the gear wheel. If the raised surface l0 is opposite the notch 32, which is the normal position or' the control member 34, as indicated by the broken line position of the arm 36 in Fig. l, the clutch pin 3l can not drop into engagement with`the notch 32 but simply slides around on the outer surface of the clutch member 33. It the arm 36 is moved to the full line position as shown in Fig. 4, the raised surface 40 is moved away from the outer edge of the notch 32 and when the clutch pin 31 slides oft of the raised surface 40, it will engage with the notch and will thereupon rotate the clutch member 33 and the crank wheels 25 one complete revolution. This will actuate the plunger 6 forwardly and rearwardly through its connection with the crank wheels 25, the operating lever 23 and rod 24.

It the operating member 34; is iinin-ediately released by removing the toot from the pedal 39, the driving shaft 27 and the crank wheels 25, will make one complete revolution only, as the raised portion 40 will again be in position opposite the normal starting point of the notch 32 to throw out the clutch pin 31 when it reaches this point upon each rotation of the gear. But if, by inadvertence, the foot of an operator is kept upon the pedal 39, the crank wheels and the shaft 27 will make slightly less than one complete rotation, as the clutch pin will be thrown out of engagement with the notch 32 as soon as the latter is opposite the raised portion 40, as indicated in Fig. 4. The only way that the plunger can again be operated is first to remove the foot 'from the pedal allowing it and the raised portion l0 of the operating member 34 to return to their normal position, as shown by the broken lines in Fig. 4. The next time the clutch pin 3l is rotated it will engage the notch 32 in the broken line position and will move it a short distance to the full line position only (as shown by Fig. 4) before it is tripped out of engagement by the raised portion 40. As soon as the clutch member 33 has been thus returned to its normal starting point, the pedal 39 can be operated as beulore to con* nect the driving mechanism for a single complete forward and back movement of the plunger 6. This mechanism therefore constitutes a safety clutch which prevents the continued or accidental operation of the plunger even if the Operator unintentionally keeps his foot on the operating pedal 39.

With this construction it is obvious that only a single advance and return ot the plunger is possible for each actuation thereof. This notl only prevents a useless waste of power but it also safeguards the operator `from any danger that may occur due to the continued or unintentional repetition ot the plunger action. It is obvious that other changes may be made in the construction, combination and arrangement of the several parts without departing from the spiritand scope of the invention.

I claim:

l. In a stuihng machine, an adjustable cushion receptacle, a reciprocable plunger movable therein, a lever aivoted at one end and having a slidable coniiect-ion with the plunger for moving it reversely, a connecting` rod and rotatable means for operating the lever, a continuously rotating driving member, a spring pressed pin carried by the driving member, a rotatable means having a recess for receiving the pin and moving it with the driving member, and controlling means including pedal and a movable member operated thereby to cover or uncover the recess at each rotation of the pin whereby it will be disengaged at each rotation to prevent more than a complete rotation of the lever-operating means independent of the position of the pedal.

2. ln a cushion stiiiiing machine, an adjustable cushion receptacle, a reciprocable plunger movable therein, a lever connected to the plunger for operating it reversely, rotatable means for operating the lever, said means including a power element, a driving member movable therewith having a notch in one edge, a spring pressed driving pin carried by the power member and engagable with the driving member, and actuating means including a movable ring with a raised portion for disengaging the driving pin after no more than one complete rotation of the power member.

3. In a cushion stufling machine, an adjustable cushion receptacle, a. reciprocable plunger movable there-in, a rotatable power member, a driving` member for rotation therewith, a spring` pressed pin carried by the power member for engagement with the driving member, and controlling means comprising a movable ring with a raised portion adapted to control the engagement of the driving pin with the driving member and to limit such engagement to not more than one rotation ot the driving member each time it is engaged, the engagement being actually less than one rotation if the ring is inadvertently held in the initial pinengaging position.

4L. lin a cushion stu'fiing machine, an ad.- justable cushion receptacle, a reciprocable plunger movable therein and means tor wtuating the plunger reversely, said means comprising a rotatable driving member., a

rotatable power member, a spring pressed pin carried by the power member engageable with the driving member, the driving member having a notch in the edge with which the pin is engageable, a movable ring at the edge of the driving member having a raised portion with an inclined approach to control the engagement of the pin in said notch, and a foot lever for controlling the movement of the ring, the movement of the raised portion limiting the engagement of the prin to no more than one complete rotation regardless of the position of the foot lever.

5. In a cushion stuffing machine, a hinged cover with projections at the outer free sides thereof, a foot lever, a pair of arms connected to the lever having hooks at the upper ends for automatic engagement with the cover projections when the cover is lowered, and pivoted arms connected for j ointoperation having projections for Iforcing the hooks out of vengagement with the cover projections.

6. In a cushion stuiiing machine, a hinged cover with projections at the outer free sides thereof, a foot lever', arms at opposite sides connected to the lever having hooks at' the upper ends for engagement with the cover projections, resilient means tending to hold the hooks upwardly for engagement with the cover projections in a raised position, and means for forcing the hooks out of engage ment with the cover projections in their lower position.

7. In a cushion stuffing machine, a hinged cover, a foot lever, means including a pair o f hooks movable upwardly and connected to the foot lever for drawing the cover downwardly, and means for simultaneously releasing the hooks from engagement with the cover.

JOHN H. NELSON.

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