Abstract: The invention relates to a mattress (1, 1?, 2, 3) having at least one first layer (10, 20, 30), a second layer (12, 22, 32) and a third layer (14, 24, 34), the second layer (12, 22, 32) comprising spring elements (16, 26, 36) and being interposed between the first layer (10, 20, 30) and the third layer (14, 24, 34). The thickness (a1, a2, a3, d1, d2, d3, . . . , d10) of the third layer (14, 24, 34) varies locally to an extent that exceeds the extent defined by a surface structure of the third layer (14, 24, 34) on its exterior surface (17).

Abstract: The present invention relates to a pocket spring core (40). The pocket spring core (40) comprises a plurality of pocketed spring elements (41). Each of the plurality of pocketed spring elements (41) is formed of a pocket (42) and at least one coil spring (43) enclosed by the pocket (42). The pocket spring core (40) comprises furthermore a frame element (44) enclosing an arrangement of the plurality of pocketed spring elements (41) along a circumference of the arrangement. The frame element (44) is glued to several pockets (42) of the plurality of pocketed spring elements (41) using a hot melt adhesive, a polyurethane adhesive or an epoxy lime adhesive.

Abstract: A spring assembly is provided that includes a plurality of first strings of springs and a plurality of second strings of springs. Each of the first strings are joined to at least another one of the first strings or one of the second strings. Each of the first strings includes first and second plies of fabric that define a plurality of pockets formed along a length of the first string. The pockets are formed by vertical seams that join the plies. The vertical seams each include an upper slit that extends through a top surface of the first string and a lower slit that extends through a bottom surface of the first string. Each of the pockets have at least one spring positioned therein.

Abstract: An apparatus is provided for applying adhesive to a string of pocketed coil springs during manufacture of an innerspring assembly, which apparatus comprises a plurality of independently actuatable adhesive applicators, each having a different transverse position relative to a longitudinal axis of the string of pocketed coil springs, and means for causing relative movement between the string of pocketed coil springs and the plurality of adhesive applicators, along a longitudinal axis of the string. The apparatus is adapted to apply adhesive to the string of pocketed coil springs, during relative movement between the first string of pocketed coil springs and the plurality of adhesive applicators, in a pattern that varies between at least some pockets of the string of pocketed coil springs.

Abstract: An innerspring assembly includes a plurality of first springs arranged side-by-side in axis-parallel relationship and wound in the form of a helix. Several first springs which are arranged behind one another in a row define a spring strand. An edge reinforcement is formed by second springs placed on at least two opposite borders of the innerspring assembly, with each second spring being connected with two first springs of an adjacent spring strand.

Abstract: A shock absorber and an assembling method of an electronic device using the same are provided. The shock absorber includes a first connecting portion, a second connecting portion and a number of elastic arms. The two connecting portions respectively connect to a housing and a circuit board of the electronic device. Two ends of each elastic arm are respectively connected to the two connecting portions to buffer the relative movement between the housing and the circuit board. The method includes the following steps. First, the shock absorber including the first connecting portion, the second connecting portion and the elastic arms is provided. Then the second connecting portion is connected to a surface of the circuit board surrounding a through hole of the circuit board. After connecting the second connecting portion, the housing is connected to the first connecting portion.

Abstract: Disclosed herein is a spring structure for a bed mattress which comprises a body spring formed in a coil shape, upper and lower end springs wound and extending horizontally at upper and lower portions of the body spring, an exposure wire spring formed integrally with the upper end spring in such a fashion as to be disposed above the upper end spring, and a connection end portion for integrally connecting the upper end spring and the exposure wire spring to each other, wherein a first contact-preventing end 30 is formed at the connection end portion in such a fashion as to be bent inclinedly upwardly from a distal end of the upper end spring positioned outwardly from an uppermost winding of the body spring.

Abstract: A mattress comprising coil springs arranged as spring units in covering pockets, a so-called pocket mattress, is provided. The spring units of the mattress are arranged in succession in elongate strings, the mattress comprising a plurality of such interconnected strings arranged side by side. A distinguishing feature of the mattress is that at least one spring unit within at least one string has a height that differs from the height of the other spring units within the same string. A method and a device for manufacturing such a mattress are also provided.

Abstract: An innerspring assembly comprising at least two sets of coil springs. In one embodiment, a first set of coil springs has a first elevation, a second set of coil springs has a second elevation different from the first elevation, and wherein one of the first and second sets of coil springs is compressed upon initial loading of the innerspring assembly, and wherein each of the first and second sets of coil springs is compressed upon continued loading of the innerspring assembly. In another embodiment, a first set of coil springs is pre-loaded to a first compressed state and a second set of the coil springs is pre-loaded to a second compressed state that exhibits a different degree of firmness relative to the first compressed state. In yet another embodiment, a first set of the coil springs has a barrel-shaped outer profile while a second set of the coil springs has an hourglass-shaped outer profile.

Abstract: A coil spring assembly is provided that includes rows of pocketed coil springs, a top securing sheet and a bottom securing sheet. The assembly may be partitioned into sections of varying firmness. The rows of coil springs are positioned between the top and bottom securing sheets. Coil spring assemblies are provided that further include top and bottom securing members that further stabilize the pocketed coil springs.

Abstract: A spring coil assembly having a first row of coils arranged in a first spacing pattern and a second row of coils adjacent the first row and arranged in a second spacing pattern that is different from the first spacing pattern. The spring coil assembly can be assembled using an apparatus comprising a main conveyor adapted to convey a plurality of coils along an axis, an assembler which is operable to intertwine a plurality of coils into a spring coil assembly, and a transfer station operable to move a plurality of coils from the main conveyor into the assembler. The transfer station includes a plurality of pusher arms each of which include a gripper which is operable to grasp an individual coil, a carriage supporting the gripper arms and means for shifting the carriage axially relative to the axis so that a plurality of coils carried by the gripper arms are displaced in the direction of travel of the conveyor.

Abstract: A coil spring assembly is provided that includes rows of pocketed coil springs, a top securing sheet and a bottom securing sheet. The assembly may be partitioned into sections of varying firmness. The rows of coil springs are positioned between the top and bottom securing sheets. Coil spring assemblies are provided that further include top and bottom securing members that further stabilize the pocketed coil springs.

Abstract: A coil spring assembly is provided that includes rows of pocketed coil springs, a top securing sheet and a bottom securing sheet. The assembly may be partitioned into sections of varying firmness. The rows of coil springs are positioned between the top and bottom securing sheets. Coil spring assemblies are provided that further include top and bottom securing members that further stabilize the pocketed coil springs.

Abstract: A spring cushion assembly, particularly for mattresses, comprises a plurality of spring coils aligned with one another in parallel linear spring coil rows and parallel linear spring coil columns perpendicular to the spring coil rows, each spring coil being of a configuration producing a tendency to incline laterally when compressed, with each spring coil row and each spring coil column comprising spring coils oriented relative to one another to incline in opposing directions for counteracting the tendency of the spring coils to incline.

Abstract: A bedding or seating product comprising a spring core made up of a plurality of parallel strings of springs joined to each other. Each of the strings of springs comprises a row of interconnected pocketed coil springs. The pocket of fabric surrounding each of these coil springs is divided into at least two subpockets by at least one line of attachment of opposite sides of the fabric to each other. Each of these subpockets contains one portion of the coil spring, thus resulting in a multilayered product.

Abstract: An inner spring, for use in furniture and bedding, comprises coil springs which are encased in cylindrical casings having a predetermined number of spring casing portions, and which are continuously arranged in parallel. The axes of the coil springs are arranged in parallel, and at least a part of the coil springs encased in the spring casing portions are given different repulsions by varying their pitches and are set in place in the cylindrical spring casings to form a row of inner springs.

Abstract: Disclosed is an improved innerspring unit for a mattress using a plurality of formed wire elements for support. Enhanced lateral and longitudinal stability of the improved innerspring is provided by one or more stabilizing features including dual formed wire elements, complimentary recesses to secure the intersection of longitudinal and lateral wires and formed wire elements disposed on the edges of the unit which are formed of the same wires which extend longitudinally and laterally across the unit. A variety of different formed wire elements is disclosed, each of which provide different support characteristics. By varying the type, number and location of the different formed wire elements, a particular support profile may be provided which may correspond, for example, to the weight contour of a prone human body.

Abstract: A bedding mattress including a spring assembly, the length of which is divided into three zones, the center zone of which includes rows of springs, each row of which is formed from a single continuous length of wire and contains a plurality of coils interconnected alternately in the top and bottom planes of the spring assembly to springs of the same row. The end zones include rows of coils, each coil of which is independent of the adjacent coil and is formed of a single length of wire knotted at the ends to form a knotted end turn or revolution. The rows of coils in all zones are interconnected by helical lacing wires, and the rows of the center zone, which are located adjacent the rows of the end zones, are also interconnected by helical lacing wires. Three border wires surround and are connected to the edgemost springs of the assembly by helical lacing wires.

Abstract: A spring coil has an open-ended terminal convolution which is connected to the body of the coil through a gradient arm. The gradient arm can be readily varied in length in manufacture to alter the compression and thereby the firmness of the spring coil. Offset portions are advantageously formed on terminal convolutions with a major straight part which is outwardly spaced from minor straight parts. This provides a three point engagement for the offset portion when connected to a border wire with a border wire helical spring. The offset portions of the spring coils have inside and outside shoulders adjacent their ends. The pitch of cross-helicals which join overlapped offset portions is chosen so that a cross-helical simultaneously engages the outside shoulders of one of a pair of overlapped offset portions to firmly hold the spring coil against rotation. The cross-helical preferably also catches the inside shoulders of the other overlapped portion to additionally hold that spring coil against rotation.

Abstract: A spring assembly for mattresses, innersprings, and the like. The assembly comprises longitudinal rows of coils, each row comprising a continuous length of wire formed into a plurality of coils interconnected by Z-shaped wire segments alternately disposed at the top and bottom of the coils. Adjacent rows of coils are connected by longitudinally extending helical lacing wires wound through overlapping Z-shaped wire segments. By lacing the rows of coils longitudinally, the spacing between adjacent coils may be varied in selected longitudinal sections of the unit so as to vary the coil count and thus the firmness of selected areas of the assembly, as for example the center section. Furthermore, by so lacing the rows of coils, a single set-up of forming and assembly machine may be used to manufacture various widths of mattresses, as for example, twin, double or queen and king size units.