Патент USA US3065492код для вставки
United States Patent O?hce 1 3,365,482 Patented Nov. 27, 1962 2 through in a direction parallel to the side walls. Each slot 3,065,482 34 is spaced from an end of the rear wall 27 so as not FOLDING H i '1 RUSH to be obstructed by lip 30 on side wall 24. A hole 36 Ronald E. Bottler, Gsalra, Japan passes longitudinally from one end of rear wall 27 to the (723% NE. Tiliamook, Portland 13, Greg.) other end and intercepts slots 34. A second pair of slots Filed May 4, 1961, Ser. No. 107,694 38 extend upwardly from hole 36 to the upper surface of Claims priority, application Japan Juiy 13, 1960 the wall. L.-shaped pins 56 to be hereinafter described 3 tClaims. (Cl. 15—203) are horizontally slidable in holes 36 and slots 38. The bristle support plates 10 are actuated by a pair of This invention relates to folding hairbrushes and in particular relates to the mounting of rotatable, elongated 10 parallel slide bars 41} each of which is an elongated rela tively thin member having a front portion 48, a rear por bristle tufts for folding movement between a raised oper tion 50 which is off-set downwardly from the front portion ative position and a folded compact position within a case and an angled center portion 49 which joins the front and to a latch for maintaining the bristle tufts in a raised and rear portions. Each slide bar 40 is spaced from the position. It is an object of the invention to provide a folding brush 15 inner surface of a side wall 24 of the casing 22 and is which utilizes long bristles and which is compact when movable along the inner edge of lip 34} in a plane parallel to the side wall 24. The rear portions 50‘ of the bars are folded. passed through slots 34 in rear wall 27 of the casing and It is a further object of this invention to provide a fold are rigidly joined to each other at their ends outside the ing mechanism for rotatable bristle tufts in a case which 20 casing by a cross-piece 52. The forward end of the front is positive and e?icient in its action. portion 43 of each bar has a downwardly projecting lip An embodiment of the brush of the invention is illus 46 which engages with the inner surface of front wall 26 trated in the following drawings in which: of the casing when the bar is in a forward position. A H6. 1 is a top plan view of the brush showing the bristles in upright position. row of spaced protrusions 42 project downwardly from FIGURE 2 is a vertical sectional view through the brush 25 the front portion 48 and the inner surface of each pro trusion 42 is provided with a hole 44 in which an upper of the invention along the line 2—2 of FIG. 1 showing the trunnion 18 of one of the plates 10 rides. Each rear por bristles in upright position. tion also has a hole 54 therethrough which is in the same FIG. 3 is a vertical sectional view taken on line 3—3 horizontal plane as holes 44 and which aligns with hole of FIG. 1. FIG. 4 is a top plan view of the brush showing the 30 36 in rear wall 27 of the casing when the bars 40 are in a forward position. bristles in a collapsed position. The latch mechanism for holding the bars in a for FIG. 5 is a vertical sectional view through the brush ward position consists of pins 56 which are slidably re along the line 5—5 of FIG. 4 showing the bristles in a tained in hole 36 in rear wall 27. Each pin 56 is L collapsed position. FIG. 6 is a vertical sectional view along line 6-6 of 35 shaped and one leg thereof extends through and is slid able horizontally in one of the slots 38. As seen in FIG FIG. 1. URES 3 and 6, when bars 46 are fully inserted into the FIG. 7 is a schematic end elevational view of the brush casing 22, pins 56 can be extended to pass through slots in its case. The brush illustrated in the drawings comprises a casing 34 and holes 54 in rear portion 50 of bars 40. As seen in 22 in which are rotatably mounted a plurality of bristle 40 FIGURE 4, when pins 56 are retracted they are clear of support plates 10. Each support plate It} has a plurality slots 34. The top of each projecting leg of pin 56 is of spaced semicylindrical protrusions 12 extending from threaded and provided Wtih a nut 60‘ which can be screwed down to hold the pin 56 in either an extended or retracted one side thereof, and a tuft 14 of bristles is set into the top of each protrusion 12. The spaces between the pro position. 45 trusions form recesses 13, and the protrusions on each The operation of the brush is readily apparent from plate are off-set, or staggered, with respect to the protru the above description. Bristle support plates 10‘ are ro sions on adjacent plates so that the protrusions on one tatable on lower trunnions 20 between the upright posi plate are opposite the recesses on adjacent plates. Each tion of FIGURES l and 2 and the folded position of FIG end of each plate 10 has integrally formed therewith a URES 2 and 4. Slide bars 46 when moved in or out of relatively long lower trunnion 20 which is journaled in a the casing by hand cause the plates 10 to pivot by the side of the casing and a shorter upper trunnion 18 which force exerted on upper trunnions 18. To place the bristles in position for brushing, crosspiece 52 is pressed forward is journaled in a slide bar 40 to be described later. The brush casing 22 is an open-topped box formed of a front wall 26, a rear wall 27 and a bottom wall 28 which ly with the hand so as to insert bars 40 fully into the cas ing thus causing bristle support plates 10 to rotate to a are integral with each other. A pair of parallel side walls vertical position within the casing. In this position of 24 are fastened to the sides of the integral front, rear and bottom walls. A lip 30 integral with each side wall 24 the plates 10, lip 46 on the front end of slide bars 49 ?rmly abuts against front wall 26 of the casing and pre vents further movement of the slide bars into the casing. The slide bars may then be latched against movement out projects inwardly from the top of each side wall 24. A cover 23 (FIGURE 7) having side walls which are com plementary to the outer surface of side walls 24 can be slid over the open top of casing 22 when the brush is not in use. The inner surface of each side wall 24 is pro vided near the bottom thereof with a row of holes 32 which of the casing by extending the pins 56 through the holes 54 in the slide bars and tightening the nuts 6%. As seen in FIGURES 2 and 6 the top of the front portion 48 of the slide bars is then ?ush with the top of the casing and receive lower trunnions 2t} of support plates 10. The 65 the cross-piece 52 lightly engages the front wall 26 of the distance between holes 32 in each row is slightly greater casing. To fold the brush, the slide bars 43 are pulled than the distance between the upper and lower trunnions rearwardly until the plates It} have rotated to the position on each plate It}. Therefore, when plates 10 are in the of FIGURES 4 and 5. During this movement the bars folded position as shown in FIGURE 4, the top of one 40 also move downwardly in the slots 34 toward the bot plate is closely adjacent but does not touch the bottom of 70 tom wall 23 of the casing. When the protrusions 42 on the next plate. the bars 40 engage the bottom wall 28, the plates id have Referring to FIGURE 3, it is seen that rear wall 27 is reached their folded position and the bristle tufts of each provided with a pair of vertical slots 34 passing there 3,065,482 3 a plate 10 rest in the recesses 13 of the adjacent plate 1% as seen in IFIGURES 4 and 5. As seen schematically in horizontally from the ends of each support means said upper trunnion means being journaled in holes in said slid able members and said lower trunnions being journaled in holes in the inner surfaces of said side walls whereby when said slidable members are fully inserted into said FIGURE 7, the cover 23 can now be slipped over the open top of the casing to protect the inner parts from dirt and injury. The hairbrush as described above is compact and posi tive acting. The provision of staggered bristle tufts per mits the use of long bristles in a compact brush because in the folded position the bristle tufts ?t into the recesses 13 between'the bristle tufts of an adjacent support plate. The rotation of the bristle support plates between erect casing said bristle support means are rotated to a posi tion in which the bristles project upwardly and whereby when said slidable members are withdrawn from said cas ing said bristle support means are rotated to a position in which the bristles are collapsed into the casing and into the spaces between the bristle holding protrusions and collapsed position is positively controlled by two on an adjacent support means; each of said slidable mem rigid slide bars each of which engage each plate and each of which is ?rmly held in the forward position by abutment with the casing at one end, by a latch at the bers being provided with a hole which registers with the longitudinal hole in said rear wall of the casing when said bars are fully inserted into said casing whereby one leg of each of said L-shaped members may he slid through said hole in said slidable member. 2. A folding brush comprising: an open-topped case having a front wall, a bottom wall, two parallel side walls and a rear wall; a plurality of parallel, elongated bristle support plates within said case and normal to said side other end, and along its outer side by the lip The abutment with the casing also accurately determines the extend to which the bars move into the casing and thereby accurately positions the bristle support plates in their upright position. The trunnions may be formed in tegrally with the support plates thus precluding the addi tional assembly steps of inserting four pins in each sup port plate. The casing may be assembled from two side walls and an integrally formed front, bot-tom and rear wall. It is to be understood that the invention is not limited to the precise embodiment described above and that minor modi?cations may be made within the scope of the in vention. Whta is claimed is: 1. A folding brush comprising: an open-top case hav ing a front wall, a bottom wall, two generally parallel side walls and a rear wall; said rear wall having ?rst and sec ond vertical slots therethrough, a longitudinal hole ex tending inwardly from each end of said rear wall through walls, each said plate having (1) a plurality of parallel spaced bristle tufts extending therefrom in a common plane, (2) recesses between said bristle tufts, the bristle tufts on one support plate being staggered with respect to the bristle tufts on adjacent support plates, (3) an upper trunnion and a lower trunnion extending from each end thereof; means ?xed with respect to said side walls for journalling said lower trunnions whereby said support plates are rotatable toward and away from said front and rear walls; a pair of spaced elongated bars parallel to said side walls and slidable within said case toward and away from said front and rear walls, said bars ?rmly abutting said front wall in one position and having spaced holes therein retaining said upper trunnions, said holes being a diiferent one of said ?rst and second slots, and third so located that when said bars are in said one position and fourth vertical slots extending upwardly from the inner portion of said longitudinal holes to the top of said bristle tufts extend normal to said bottom wall; slid~ able operating means associated with the rear ends of said bars and extending exteriorly of said case for manu ally sliding said bars toward and away from said front said rear wall; an elongated slidable member adjacent the upper inner surface of each side wall, the rear end of each member projecting through a diiferent one of said ?rst and second slots and the front end of each member and rear walls, said operating means having a latch re ceiving cavity therein; and a latch member slidably re tained within a cavity in said case and movable into said abutting‘ the inner surface of said front wall; means join-v ing the rear ends of said members outside said rear wall; 45 latch receiving cavity when said operating means has placed said bars in said one position. an L-shaped member having one leg slidable in each of 3. A folding hairbrush as in claim 2 wherein said bars said longitudinal holes and the other leg projecting up extend through said rear wall and wherein said latch wardly through the slot which connects the hole with the member comprises a pin within said rear wall and mov top of said rear wall; means engaging the upwardly pro jecting legs and adapted to fasten said L~shaped members . able into a cavity in one of said bars. against sliding movement in said longitudinal’ holes; a plu rality of elongated rotatable bristle support means paral lel to said front and rear walls and positioned between said slidable members; spaced bristle holding protrusions on each of said support means, the protrusions on each of said support means being offset from the protrusions on adjacent plates; a tuft of bristles projecting from each protrusion; upper and lower trunnion means extending References Cited in the ?le of this patent UNITED STATES PATENTS 330,270 Stehlin _______________ __ Nov. 10, 1885 785,342 Weir ________________ __ Mar. 21, 1905 1,272,908 Bridges _____ __'_ _______ __ July 16, 1918 2,291,741 Meyers _______________ __ Aug. 4, 194-2 2,525,209 Davis _.__:__,______,_______‘_ Oct. 10, 1950.