CN2644773Y

CN2644773Y - Spring for making net of cushion

Info

Publication number: CN2644773Y
Application number: CN 03238239
Authority: CN
Inventors: 谭治铭
Original assignee: 谭家贤
Priority date: 2003-09-18
Filing date: 2003-09-18
Publication date: 2004-09-29
Anticipated expiration: 2013-09-18

Abstract

The utility model relates to a perforating net spring for flexible cushion, which is characterized in that a spiral spring is composed of a starting coil, an end coil, a middle coil, an upper net coil and a lower net coil. The upper net coil is arranged between the starting and the middle coils and the coil diameter is more than the coil diameter of the starting and the middle coils. The lower net coil is arranged between the middle and the end coils and the coil diameter is more than the end and the coil diameter of the middle coils. The utility model has a reasonable structure, which can not only form a reticulate cushion conveniently and densely, but also distribute the spiral spring evenly without gap, so the utility model facilitates the comfortable operation and is suitable for spring cushions such as mattress and sofa pads.

Description

Cushion is with wearing the net spring

Technical field

The utility model relates to a kind of spring, and particularly a kind of cushion is with wearing the net spring.

Background technique

Existing spirality is worn the net spring and is generally " slimwaist type " spring." slimwaist type " spring (as shown in Figure 1-Figure 3) top and terminal pitch of the laps are bigger, when piecing together netted pad with their cross-under of cross-under bundle of lines, between each spring amalgamation tightr, the space is less.But because of top and terminal pitch of the laps diameter are bigger, so these local spaces are bigger, people's seat can obviously have recessed sensation on pad the time.

Summary of the invention

It is a kind of rational in infrastructure that the purpose of this utility model is to provide, and can closely piece together netted pad, increased effective area of contact of pad, makes the pad seat lie more comfortable cushion with wearing the net spring.

The purpose of this utility model can reach by following measure: a kind of cushion is with wearing the net spring, it is characterized in that: spiral spring body is divided into top pitch of the laps, terminal pitch of the laps, middle pitch of the laps, upper perforating net pitch of the laps, lower perforating net pitch of the laps, the upper perforating net pitch of the laps is between top pitch of the laps and middle part pitch of the laps, its circle footpath is greater than top pitch of the laps and middle part pitch of the laps, the lower perforating net pitch of the laps is between middle pitch of the laps and terminal pitch of the laps, and its circle footpath is greater than terminal pitch of the laps and middle part pitch of the laps.

The purpose of this utility model can also reach by following measure: the cross-under line is connected on the upper perforating net pitch of the laps and lower perforating net pitch of the laps of each spiral spring body, makes it form netted pad.

The utility model has following advantage compared to existing technology: rational in infrastructure, both can make things convenient for and closely piece together netted pad, spiral spring in the pad is evenly distributed, the space can not appear, and can increase the pre-support pressure of spring, increase effective area of contact of pad, more comfortable when people use, be applicable to spring pads such as mattress, sofa cushion.

Description of drawings

Fig. 1, Fig. 2 for existing " slimwaist type " helical spring structure just, plan view;

Structural representation when Fig. 3 pieces together netted pad for " slimwaist type " helical spring;

Fig. 4 is a structure front view of the present utility model;

Fig. 5 is a structure plan view of the present utility model;

Structural representation when Fig. 6, Fig. 7 piece together netted pad for the utility model;

Pad body structure schematic representation when Fig. 8 adopts another kind of shape for helical spring;

Fig. 9-Figure 11 is another embodiment's of the utility model a structural representation.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing (embodiment):

With reference to Fig. 4～Fig. 8, spiral spring body 7 is divided into top pitch of the laps 1, terminal pitch of the laps 2, middle pitch of the laps 3, upper perforating net pitch of the laps 4, lower perforating net pitch of the laps 5.The circle footpath of top pitch of the laps 1, terminal pitch of the laps 2 and middle pitch of the laps is all less; And the circle of upper perforating net pitch of the laps 4, lower perforating net pitch of the laps 5 footpath is all bigger.Upper perforating net pitch of the laps 4 is between top pitch of the laps 1 and middle part pitch of the laps 3; Lower perforating net pitch of the laps 5 is between middle pitch of the laps 3 and terminal pitch of the laps 2.In the time will piecing together netted pad, can be connected to cross-under line 6 respectively on the upper perforating net pitch of the laps 4 and lower perforating net pitch of the laps 5 of each spiral spring body 7, make it form netted pad.Because the circle of upper perforating net pitch of the laps 4 and lower perforating net pitch of the laps 5 footpath is bigger, thus very convenient, compact during amalgamation, can not reserve the space; Because the supporting effect of top pitch of the laps 1 and terminal pitch of the laps 2 had once added pre-supporting force, when people's seat is on pad, can not produce recessed sensation simultaneously.Upper perforating net coil 4 and lower perforating net coil 5 also can be made into shape as shown in Figure 8, are more conducive to 6 cross-under of cross-under line.

With reference to Fig. 9-Figure 11, top pitch of the laps 1 also can be positioned at upper perforating net pitch of the laps 4, is not higher than upper perforating net pitch of the laps 4; Or terminal pitch of the laps 2 is positioned at lower perforating net pitch of the laps 5, do not protrude in terminal pitch of the laps 5.

Claims

1, a kind of cushion is with wearing the net spring, it is characterized in that: spiral spring body (7) is divided into top pitch of the laps (1), terminal pitch of the laps (2), middle pitch of the laps (3), upper perforating net pitch of the laps (4), lower perforating net pitch of the laps (5), upper perforating net pitch of the laps (4) is positioned between top pitch of the laps (1) and the middle part pitch of the laps (3), its circle footpath is greater than top pitch of the laps (1) and middle part pitch of the laps (3), between pitch of the laps (3) and the terminal pitch of the laps (2), its circle footpath was greater than terminal pitch of the laps (2) and middle part pitch of the laps (3) in the middle of lower perforating net pitch of the laps (5) was positioned at.

2, spring according to claim 1 is characterized in that: cross-under line (6) is connected on the upper perforating net pitch of the laps (4) and lower perforating net pitch of the laps (5) of each spiral spring body (7), makes it form netted pad.