TWI663939B - Reticulated seat surface, method for manufacturing the same, and chair equipment having the reticulated seat surface - Google Patents

Abstract

A mesh chair surface, a method for manufacturing the same, and a chair with a mesh chair surface. The mesh chair bread includes a chair surface frame and at least one PU mesh surface unit, which uses at least one 3D printing device and uses polyurethane ( PU) is used as a printing material, and the nozzle of the 3D printing device sprays polyurethane (PU) to print on a surface of an outer frame portion of the seat frame and a supporting surface of a matching support member Molding the at least one PU mesh unit and integrating the at least one PU mesh unit with the outer frame portion of the seat frame; the PU mesh unit can form various diversified mesh patterns or Other decorative patterns, in order to avoid the cost and hassle of opening various corresponding molding dies for various mesh seat surfaces or PU mesh surface units in the prior art, so as to improve the process efficiency and market competition of the mesh seat surface and related chairs force.

Description

Reticulated seat surface, method for manufacturing the same, and chair equipment having the reticulated seat surface

The invention relates to a mesh seat surface and a manufacturing method thereof, and a chair device having the mesh seat surface, in particular to a polyurethane (PU) as a 3D printing material and a 3D printing method to be used on the surface of a seat frame. Printing and forming at least one PU mesh surface unit, thereby improving the process efficiency of the mesh seat surface and various decorative functions.

3D printing technology and its application have become quite popular, but there is currently no 3D printing technology that uses 3D printing technology, especially polyurethane (PU) as a printing material, to be applied to chairs, especially chairs with a mesh seat surface. In the field. In the prior art, when making a seat back with a mesh surface, a mold (such as an injection molding mold or a casting mold) must be opened according to the design size or shape of the seat back frame of the style for manufacturing a matching seat back mesh surface. That is, the mesh of the back of the chair can only be provided for the back frame of this style. When replacing the back of another style, the mold must be opened again. This process is time-consuming and labor-intensive. In addition, when a finished seat back mesh is to be assembled on a corresponding seat back frame, other auxiliary accessories must be used in order to combine the seat back mesh with the seat back frame, which is also relative. As a result, the cost of the additional accessory is increased.

Therefore, in the field of chairs with a mesh seat surface, how to directly make a seat back mesh surface (but not limited to the seat back) and a seat back frame (but not limited to) by the existing 3D printing technology The seat back) is integrated into one body to facilitate mass production, reduce production costs, or increase market competitiveness. This is the main problem to be solved by the present invention. The present invention provides the most effective and advantageous solution to the above problems.

The main object of the present invention is to provide a mesh chair surface, the mesh chair bread, a chair frame and at least one PU mesh surface unit, wherein the chair frame is a frame body to be assembled on a chair to become the chair. A part of the structure body such as a seat back or a seat, the seat frame has an outer frame portion; wherein the at least one PU mesh surface unit uses at least one 3D printing device and uses polyurethane (PU) as a printing material, and borrows Polyurethane (PU) is sprayed from the nozzle of the 3D printing device to print on one surface of the outer frame portion of the seat surface frame and one supporting surface of a matching support member, and make the at least one PU net The surface unit can be integrated with the outer frame portion of the seat frame; the support member is detachably installed in the seat frame, so that a surface of the outer frame portion of the seat frame can be connected with the surface of the seat frame. A supporting surface of one of the supporting members forms a smooth surface for the printing head of the 3D printing device to smoothly print. When the printing of the at least one PU mesh unit is completed and integrally formed on the seat frame, the supporting member It can be removed from the seat frame.

Another object of the present invention is to provide a method for manufacturing a mesh seat surface, including the following steps: Step S1: providing a seat frame, and installing a support member in the seat frame to make the seat frame frame One surface of the part can form a smooth surface with one support surface of the support member; step S2: using at least one 3D printing device and using polyurethane (PU) as a printing material; step S3: using a nozzle of the 3D printing device, Print at least one PU mesh unit on the surface of an outer frame portion of the seat frame and the smooth surface formed by the support surface of the support member by 3D printing; step S4: target the at least one PU The mesh unit is hardened; and step S5: removing the support from the The seat frame is removed to complete a mesh seat.

Another object of the present invention is to provide a chair having a mesh seat surface, that is, a structure of the chair having a mesh seat surface.

1‧‧‧ mesh seat

10‧‧‧Seat frame

11‧‧‧Outer frame section

11a‧‧‧ surface

12‧‧‧ fixing hole

13‧‧‧ groove

14‧‧‧ hollow space

20‧‧‧ support

21‧‧‧ support surface

30‧‧‧PU mesh unit

31‧‧‧Polyurethane (PU)

31a‧‧‧Two-liquid polyurethane (PU)

32‧‧‧ the first liquid

33‧‧‧Second liquid

34‧‧‧Decorative pattern

2‧‧‧printing device

40‧‧‧ Nozzle

41‧‧‧conveying pipe

42‧‧‧Capacity Room

FIG. 1 is a schematic perspective view of an embodiment of a mesh seat surface of the present invention assembled on a chair.

FIG. 2 is a schematic plan view of an embodiment of a seat frame according to the present invention.

3 is a schematic plan view of the seat frame shown in FIG. 2 in preparation for printing.

FIG. 4 is a schematic plan sectional view of FIG. 3 after 3D printing is completed.

FIG. 5 is a schematic front view of an embodiment of the mesh seat surface of the present invention after 3D printing is completed.

FIG. 6 is a schematic perspective view of another embodiment of a seat frame according to the present invention.

7 is a schematic plan view of the seat frame shown in FIG. 6 in preparation for printing.

FIG. 8 is a schematic plan view of FIG. 7 after 3D printing is completed.

FIG. 9 is a perspective view of the seat frame shown in FIG. 6 after 3D printing is completed.

FIG. 10 is a schematic perspective view of the mesh seat surface shown in FIG. 9 assembled on a chair.

In order to make the present invention clearer and more detailed, the preferred embodiments and the following drawings are used to describe the structure and technical features of the present invention in detail; wherein the dimensions of the components in the drawings are not drawn according to actual proportions.

As shown in Figs. 1-10, the present invention provides a mesh seat surface 1 and a manufacturing method thereof, and a chair having a mesh seat surface. The mesh seat surface 1 includes a seat frame 10 and at least one PU mesh. Surface unit 30.

The seat surface frame 10 is made of a seat surface material to form a frame body with a seat surface shape. The conventional seat surface material includes metal, plastic, wood, etc., but is not limited; the seat frame frame 10 can borrow other structures. Pieces or locking devices are assembled on a chair 3 to become a part of the structure of the chair 3 such as a seat back portion or a seat portion, but without limitation, the seat frame 10 has an outer frame portion 11.

In addition, the seat frame 10 can also use the 3D printing device 2 and use polyurethane (PU) 31 as a printing material, but is not limited, so that the seat frame 10 can be further ejected by the nozzle 40 of the 3D printing device 2 Polyurethane (PU) 31 is formed by printing as shown in Figs. 3, 4, 7, and 8.

The at least one PU screen unit 30 uses at least one 3D printing device 2 and uses polyurethane (PU) 31 as the printing material of the 3D printing device 2, and the polyurethane 40 is ejected by the nozzle 40 of the 3D printing device 2 ( PU) 31 is printed on one surface 11 a of the outer frame portion 11 of the seat frame 10 and one supporting surface 21 of a supporting member 20, and the at least one PU mesh unit 30 is arranged in a row. It can be integrated with the outer frame portion 11 of the seat frame 10 during printing.

The supporting member 20 can be regarded as an auxiliary jig used by the 3D printing device 2 when performing printing work. The supporting member 20 is detachably installed in the structure of the seat frame 10. The main function is to enable a surface 11a of the outer frame portion 11 of the seat surface frame 10 to maintain or form a smooth surface with one of the support surfaces 21 of the support member 20. For example, the support member 20 is detachably installed on the seat frame. The inside 10 is filled in a hollow space 14 of the outer frame portion 11 as shown in FIGS. 2-4 and 6-8 but is not limited, whereby the nozzle 40 of the 3D printing device 2 can be formed on the smooth surface ( 11a, 21). When the at least one PU mesh unit 30 is printed and integrally formed on the seat frame 10, the support member 20 can be removed from the seat frame 10 as shown in FIGS. 1, 5, 9, and 10.

The polyurethane (PU) 31 series includes, but is not limited to, two components PU, moisture curable one component PU, and thermoplastic PU (TPU).

As shown in FIGS. 3 and 7, when the polyurethane (PU) 31 is a two-liquid polyurethane (PU) 31a as a printing material, the first liquid 32 and the second liquid 33 of the two-liquid polyurethane (PU) 31a are used as a printing material. It is sent to a container 42 provided in front of the nozzle 40 of the 3D printing device 2 by a conveying pipe 41 for uniform mixing, and then the two-liquid type PU31a is uniformly mixed by the nozzle 40 before being mixed and hardened. Eject for printing as shown in Figures 4 and 8. In addition, the traditional two-liquid type PU has a diffusion problem, and a flow control additive can be added to the traditional two-liquid type PU to solve the problem.

As shown in FIGS. 1 and 5, when the at least one PU screen unit 30 is performing a printing job, at least one decorative pattern 34 may be further printed on the at least one PU screen unit 30 without limitation. Diversification of the patterns of the at least one PU mesh unit 30 can be enhanced, and consumer selectivity can be increased.

The seat frame 10 is further provided with a plurality of fixing holes 12 on the outer frame portion 11. The plurality of fixing holes 12 are arranged in an equidistant arrangement (as shown in FIG. 5) or a non-equidistant arrangement (as shown in FIG. 1). (Shown) is provided on the outer frame portion 11 so that the outer edge of the at least one PU mesh surface unit 30 can be integrally extended and printed into the plurality of fixing holes 12 during printing molding, so that the at least one PU The mesh surface unit 30 can be fixed on the outer frame portion 11 of the seat frame 10 and connected together, thereby relatively saving the connection between the at least one PU mesh unit 30 and the outer frame portion 11 of the seat frame 10 Operating procedures.

As shown in FIG. 6, a plurality of grooves 13 are further provided on the outer frame portion 11 of the seat frame 10, and the plurality of grooves 13 are arranged in an equidistant or non-equidistant arrangement (but not limited). The outer frame portion 11 allows the outer edge of the at least one PU mesh unit 30 to be integrally extended during printing and molding. Printed in the plurality of grooves 13, so that the at least one PU mesh surface unit 30 can be fixed on the outer frame portion 11 of the seat frame 10 and connected into one body, thereby relatively saving the at least one PU mesh surface. A procedure for joining the surface unit 30 and the outer frame portion 11 of the seat frame 10.

In addition, the mesh seat surface 1 is used as a backrest (shown in FIGS. 1 and 10) or a seat (not shown) of the chair 3 but is not limited. The outer frame portion of the seat frame 10 The shape of 11 is designed according to the shape of the back or seat of the chair 3, and the surface of the support 20 is designed to match the shape of the outer frame portion 11 of the seat frame 10.

The manufacturing method of the mesh chair surface of the present invention includes the following steps:

Step S1: Provide a seat frame 10, and install a support 20 in the seat frame 10 so that a surface of the outer frame portion 11 of the seat frame 10 can form a smooth surface with the surface of the support 20 .

Step S2: using at least one 3D printing device 2 and using polyurethane (PU) 31 as a printing material.

Step S3: The nozzle 40 of the 3D printing device 2 is used to 3D print on a surface 11a of an outer frame portion 11 of the seat frame 10 and a support surface 21 of the support 20 in a 3D printing manner. At least one PU mesh surface unit 30.

Step S4: The at least one PU mesh surface unit 30 is hardened.

Step S5: Remove the supporting member 20 from the seat frame 10 to complete a mesh seat surface 1.

Compared with the existing related technologies in the same field, the mesh seat surface 1 and the manufacturing method thereof and the chair equipment having the mesh seat surface have the following advantages:

(1) The mesh chair surface 1 of the present invention is directly on the chair by 3D printing technology. A PU mesh surface unit 30 with various designs can be printed and formed on the surface frame 10, which is beneficial to the mass production and market competitiveness of the mesh seat surface 1.

(2) The mesh seat surface 1 of the present invention further enables the at least one PU mesh surface unit 30 to be integrated with the outer frame portion 11 of the seat frame frame 10 while being 3D printed, thereby saving the at least one A bonding procedure between a PU mesh surface unit 30 and the outer frame portion 11 of the seat frame 10.

(3) When the at least one PU mesh unit 30 is printed and formed in 3D, at least one decorative pattern 34 may be printed and formed on the at least one PU mesh unit 30 at the same time as needed to enhance the at least one PU mesh The pattern of the surface unit 30 is diversified and the selectivity of the consumer is increased.

The above descriptions are merely preferred embodiments of the present invention, and are only illustrative, not restrictive, for those skilled in the art. Those skilled in the art understand that they can be modified within the spirit and scope defined by the claims of the present invention. Many changes, modifications, and even equivalent changes will be made, but all will fall into the protection scope of the present invention.

Claims (13)

A mesh chair surface includes: a chair surface frame, which is a frame body for assembling on a chair to become a part of the chair structure, the chair frame has an outer frame portion; at least one PU mesh surface A unit which uses at least one 3D printing device and uses polyurethane (PU) as a printing material of the 3D printing device, and sprays polyurethane (PU) through a nozzle of the 3D printing device to be outside the seat frame The at least one PU mesh unit is printed on a surface of a frame portion and a supporting surface of a matching support member, so that the at least one PU mesh unit can be combined with an outer frame portion of the seat frame. The support is detachably installed in the seat frame, so that a surface of the outer frame portion of the seat frame can form a smooth surface with a support surface of the support for The nozzle of the 3D printing device prints smoothly on the formed smooth surface; when the printing of the at least one PU mesh unit is completed, the support can be removed from the seat frame. The mesh seat surface according to claim 1, wherein the seat frame further uses the 3D printing device and uses polyurethane (PU) as a printing material, so that the nozzle of the 3D printing device ejects polyurethane (PU). To print. The mesh seat surface according to claim 1, wherein the polyurethane (PU) comprises: two components PU, moisture curable one component PU, and thermoplastic PU (TPU, thermoplastic PU). The mesh seat surface according to claim 3, wherein when the polyurethane (PU) is a two-liquid polyurethane (PU) as a printing material, the first and second fluids of the two-liquid polyurethane (PU) It is sent to a storage chamber located in front of the nozzle of the 3D printing device by a conveying pipe for uniform mixing, and then the two-liquid type PU after uniform mixing is ejected from the nozzle for mixing and hardening for printing. . According to the mesh seat surface of claim 1, the polyurethane (PU) is further sprayed out by the nozzle of the 3D printing device to print and form at least one decorative pattern on the at least one PU mesh surface unit. The mesh seat surface according to claim 1, wherein a plurality of fixing holes are further provided in the outer frame portion of the seat surface frame, and the plurality of fixing holes are arranged outside the space in an equidistant or non-equidistant arrangement. On the frame part, the outer edge of the at least one PU mesh surface unit can be extended and printed into the plurality of fixing holes during printing molding, so that the at least one PU mesh surface unit can be fixed to the seat frame. The outer frame is connected to form a whole. The mesh seat surface according to claim 1, wherein a plurality of grooves are further provided on the outer frame portion of the seat surface frame, and the plurality of grooves are arranged outside the space in an equidistant or non-equidistant arrangement. On the frame part, the outer edge of the at least one PU mesh surface unit can be extended to print and enter the plurality of grooves during printing molding, so that the at least one PU mesh surface unit can be fixed to the seat frame. The outer frame is connected to form a whole. The mesh seat surface according to claim 1, wherein the mesh seat surface is used as a seat back or seat of the chair, and the shape of the outer frame portion of the chair surface frame follows the chair of the chair The shape of the back or the seat is matched to the design, wherein the surface of the support member is designed to match the shape of the outer frame of the seat frame. A chair, characterized in that the structure of the chair includes a mesh seat surface according to any one of claims 1 to 8. A method for manufacturing a mesh seat surface includes the following steps: Step S1: providing a seat frame, and installing a support member in the seat frame so that a surface of a frame portion outside the seat frame can communicate with the support. One of the supporting surfaces forms a smooth surface; step S2: using at least one 3D printing device and using polyurethane (PU) as a printing material; step S3: using the nozzle of the 3D printing device to 3D print on the chair At least one PU mesh unit is printed and formed on a smooth surface formed by a surface of an outer frame portion of the face frame and a support surface of the support member; step S4: hardening the at least one PU mesh unit; and steps S5: Remove the support member from the seat surface frame to complete a mesh seat surface. The manufacturing method according to claim 10, wherein the outer frame portion of the seat frame is further provided with a plurality of fixing holes, and the plurality of fixing holes are arranged in the outer frame portion in an equidistant or non-equidistant arrangement. The outer edge of the at least one PU mesh surface unit can be extended to print and enter the plurality of fixing holes during printing molding, so that the at least one PU mesh surface unit can be fixed outside the seat frame. The frame portion is connected to form a whole. The manufacturing method according to claim 10, wherein a plurality of grooves are further provided on the outer frame portion of the seat frame, and the plurality of grooves are provided on the outer frame portion in an equidistant or non-equidistant arrangement. So that the outer edge of the at least one PU mesh unit can be extended and printed into the plurality of grooves during printing molding, so that the at least one PU mesh unit can be fixed outside the seat frame The frame portion is connected to form a whole. The manufacturing method according to claim 10, further comprising, in step S3, spraying out polyurethane (PU) through a nozzle of the 3D printing device to print and form a decorative pattern on the at least one PU screen unit.