KR102603116B1 - Band for vehicle interior and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a vehicle interior band used for rear seatbacks or armrest handles of vehicles and a manufacturing method thereof. The present invention relates to a non-reinforced sewing section and a reinforced sewing section in an automatic sewing machine, and the non-reinforced sewing section and the non-reinforced sewing section. A setting step of inputting the number of stitches forming the sewing section and the reinforcement sewing section; A first step in which the automatic sewing machine sews a band fabric folded in half when the pedal of the automatic sewing machine is pressed; a second step in which the automatic sewing machine automatically stops sewing when the number of stitches in the non-reinforced sewing section is reached; A third step of inserting one end of a reinforcing plate having half the width of the band fabric and a length equal to the reinforcing sewing section in an overlapping state on the band fabric to prepare it to come into contact with the automatic sewing machine; A fourth step in which the automatic sewing machine automatically sews the half-folded band fabric together with the built-in reinforcement plate when the pedal of the automatic sewing machine is pressed again; A fifth step in which the automatic sewing machine automatically stops sewing and returns to the first step when the number of stitches in the sewing section is reached is reached. According to this, bands of various strengths and thicknesses can be manufactured using a single band fabric, thereby greatly improving production efficiency and forming seams of consistent quality.

Description

Band for vehicle interior and manufacturing method thereof {BAND FOR VEHICLE INTERIOR AND MANUFACTURING METHOD THEREOF}

The present invention relates to a vehicle interior band used for rear seatbacks or armrest handles of vehicles and a method of manufacturing the same. More specifically, it relates to an automatic sewing machine capable of setting the sewing section and stitch count. It relates to a used vehicle interior band and its manufacturing method.

As shown in Figures 1 (a) and (b), the conventional vehicle interior band 10 is made by folding the upper and lower parts 11 and 12 of the strip-shaped fabric in half and attaching it to the inner double-sided tape 13. It is manufactured by attaching and temporarily fixing it and then sewing along the top and bottom to form sewing lines (14, 15). As shown in Figure 1 (c), the band 10 manufactured in this way is folded in half, inserted into one end of an armrest or headrest, etc., and sewn together to form a handle.

In order to manufacture such a band 10, a series of processes were manually performed, such as attaching double-sided tape 13 along the center line of the band fabric and folding the upper and lower parts 11 and 12 of the fabric in half accordingly. As the process progressed, there was a problem of low productivity, and to solve this problem, the applicant developed a series of manufacturing methods to manufacture the band 10 as disclosed in Utility Model Registration No. 20-0488164 (December 21, 2018). An automatic band manufacturing device that automates the process has been proposed.

On the other hand, depending on the usage environment or manufacturing requirements of the band 10, there is a need to diversify the thickness or strength of the band 10 in the direction of reinforcing it. In each case, the appropriate properties and thickness are determined. Not only is it difficult to arrange for band fabric, but purchasing it and keeping it in inventory will be a burden in many aspects, including cost, space, and quality control. Therefore, an appropriate plan to deal with this situation has become necessary.

Public Patent Publication No. 10-2013-0036969 (April 15, 2013) Patent Registration No. 10-0329619 (2002.03.21.)

Therefore, the purpose of the present invention is to provide a band for vehicle interior using an automatic sewing machine and a method of manufacturing the same, which can be an efficient alternative in cases where reinforcement of the thickness or strength of the band is required depending on the band's usage environment or manufacturing requirements. It's in doing it.

In order to achieve the above object, the present invention includes a band roll holder on which a band fabric is wound; an inlet having the same width as the band fabric and through which the band fabric pulled out from the band roll holder enters, an outlet having a width of half the band fabric and pulling out the band fabric in a state folded in half in the width direction, and a band bending channel in which a guide path portion is formed between the inlet and the outlet to continuously bend the band fabric in the width direction and fold it in half; In the method of manufacturing a band for vehicle interior using an automatic sewing machine for drawing and sewing the band fabric of the outlet, the automatic sewing machine includes a non-reinforced sewing section and a reinforced sewing section, and the non-reinforced sewing section and the reinforced sewing section. A setting step of inputting the number of stitches; A first step in which the automatic sewing machine sews the half-folded band fabric when the pedal of the automatic sewing machine is pressed; a second step in which the automatic sewing machine automatically stops sewing when the number of stitches in the non-reinforced sewing section is reached; One end of a reinforcement plate having a width of half the width of the band fabric and a length equal to the reinforcement sewing section is inserted in an overlapping state on the band fabric in the guide path portion of the band bending channel and folded in half at the outlet. A third step of preparing the band to be embedded in the fabric and brought into contact with the automatic sewing machine; A fourth step in which the automatic sewing machine automatically sews the half-folded band fabric together with the built-in reinforcement plate when the pedal of the automatic sewing machine is pressed again; It provides a method of manufacturing a band for vehicle interior, comprising a fifth step in which the automatic sewing machine automatically stops sewing and returns to the first step when the number of stitches in the sewing section is reached.

In addition, in order to achieve the above object, the present invention includes a band roll holder on which a band fabric is wound; an inlet having the same width as the band fabric and through which the band fabric pulled out from the band roll holder enters, an outlet having a width of half the band fabric and pulling out the band fabric in a state folded in half in the width direction, and a band bending channel in which a guide path portion is formed between the inlet and the outlet to continuously bend the band fabric in the width direction and fold it in half; A method of manufacturing a band for vehicle interior using an automatic sewing machine that draws out and sews the band fabric of the outlet, comprising: a setting step of inputting a reinforcement sewing section and the number of stitches forming the reinforcement sewing section to the automatic sewing machine; One end of a reinforcement plate having a width of half the width of the band fabric and a length equal to the reinforcement sewing section is inserted in an overlapping state on the band fabric in the guide path portion of the band bending channel and folded in half at the outlet. A first step of preparing the band to be embedded in the fabric and brought into contact with the automatic sewing machine; A second step of automatically sewing the half-folded band fabric together with the built-in reinforcement plate by stepping on the pedal of the automatic sewing machine; It provides a method of manufacturing a band for vehicle interior, comprising a third step in which the automatic sewing machine automatically stops sewing when the number of stitches is reached.

At this time, the method of manufacturing the vehicle interior band includes a double-sided tape roll holder on which a double-sided tape is wound; a bending guide installed on the guide path portion of the band bending channel to bend and retract the double-sided tape pulled out from the double-sided tape roll holder; a spacing roller bar installed on the guide path portion and in rolling contact with the double-sided tape to separate the double-sided tape passing through the bending guide bar from the band fabric; a release paper separator that guides the release paper to be separated from the double-sided tape that has passed through the roller stand; an adhesive roller base for attaching the double-sided tape that has passed through the release paper separator to the band fabric; A reinforcement plate insertion panel installed at the inlet of the band bending channel and guiding the reinforcement plate to be inserted and stacked on the band fabric may be further used.

Meanwhile, in order to achieve the above object, the present invention provides a band for vehicle interior manufactured by the above manufacturing method.

As described above, according to the vehicle interior band and its manufacturing method using an automatic sewing machine according to the present invention, the band fabric is used as a method for providing a band with strength and thickness to meet the usage environment and manufacturing requirements of the band. can provide a vehicle interior band that can meet the various needs of customers by using the same material but varying the thickness, strength, weight, etc. of the reinforcing plates built into it and combining them. In addition, production efficiency can be greatly improved because there is no need to stock band fabric with a strength or thickness that meets the customer's requirements.

In particular, by setting the number of sewing stitches for each section of the non-reinforced sewing section and the reinforced sewing section according to the presence or absence of a reinforcing plate, sewing is started by pressing the pedal of the sewing machine, but when the above stitch number is reached, sewing is automatically stopped even when the pedal is pressed. A seam of consistent quality can be formed.

1 is a plan view, bottom view, and state of use of a band for vehicle interior according to the prior art;
2 is a plan view of a band for vehicle interior according to an embodiment of the present invention;
Figure 3 is a cross-sectional view of the vehicle interior band of Figure 2;
Figure 4 is a perspective view showing a device such as an automatic sewing machine used in the method of manufacturing a band for vehicle interior according to an embodiment of the present invention;
Figures 5 and 6 are step-by-step schematic diagrams for explaining the process of manufacturing a vehicle interior band according to an embodiment of the present invention using the device of Figure 4;
7 is a flowchart illustrating a method of manufacturing a band for vehicle interior according to an embodiment of the present invention;
8 is a photograph of a band for vehicle interior according to an embodiment of the present invention;
Figure 9 is a photograph representing the comparative example of Figure 8.

As shown in FIGS. 2 and 3, the vehicle interior band 20 according to an embodiment of the present invention has the left and right ends of the band fabric folded in half in the left and right width directions. It is sewn along to form seam lines 23 and 24, and is characterized by a built-in reinforcement plate 25 made of a plastic material such as PVC to control the thickness and reinforce the strength of the band 20. The seams 23 and 24 are integrated by being sewn together with the inner portion 26 of the band fabric along the left and right edges of the reinforcement plate 25.

In order to prevent the inner ends of the left and right sides (21, 22) of the band fabric surrounding the bottom of the reinforcement plate (25) from being tattered, a double-sided tape (not shown, Figure 1) passes through the center line of the bottom of the reinforcement plate (25). 13), the both sides parts 21 and 22 can be attached to the bottom of the reinforcement plate 25 or the inner part 26 of the band fabric.

The reinforcement plate 25 is built in at regular intervals along the longitudinal direction of the band 20. The band 20 with the reinforcement plate 25 built in this way includes the reinforcement plate 25, but has a certain spare length in the longitudinal direction. As such, it is preferably used by cutting at the middle position of the gap between neighboring reinforcing plates (25). The band 20 cut in this way is integrated by folding it in half (see c in FIG. 1) and sewing the overlapping end portions together at the joint of the cover fabric forming the vehicle seat or armrest.

The device configuration for manufacturing the vehicle interior band 20 as described above is as shown in FIG. 4. That is, the band fabric 19 that is wound and pulled out from the band roll holder (not shown) installed at the bottom of the table 101 on which the automatic sewing machine 110 is installed passes through the band bending channel 120 and is folded in half. It is sewn along the seam lines (23 and 24 in FIG. 2) by passing through the automatic sewing machine 110 (see FIGS. 2 and 3).

The band bending channel 120 has an inlet 121 through which a band fabric 19 of the same width is introduced, and the introduced band fabric 19 is continuously bent until it is folded in half as shown in Figures 2 and 3. The folding guide path portion 122 and the outlet 123 for pulling out the band fabric 19 folded to half the width and delivering it to the automatic sewing machine 110 are sequentially and continuously formed.

In addition, a double-sided tape (27, see Figures 5 and 6) is continuously attached along the center line to the surface of the band fabric 19 that passes through the band bending channel 120 and is folded in half. For this purpose, an automatic It includes a double-sided tape roll holder 130 that is relatively fixed to the sewing machine 110 and on which the double-sided tape 27 is wound, and the double-sided tape 27 pulled out from this is connected to the guide path portion 122 on the band bending channel 120 side. ) is bent while passing through the bending guide 124 fixedly installed on the band fabric 19, and is introduced relatively horizontally while maintaining a distance from the band fabric 19.

The double-sided tape 27 introduced through the bending guide 124 is supported in a rolling contact form on the spaced roller 125 fixedly installed on the guide path 122 and still passes through the lower band. It remains spaced apart from the fabric 19, and the double-sided tape 27 that has passed through the spaced roller stand 125 passes through the release paper separator 126 installed in the front, and the double-sided tape 27 is attached to the plate surface. By blocking the transfer of the release paper 27a separated from and bending the path, only the pure double-sided tape 27 passes downward (see FIG. 5).

In this way, the double-sided tape 27, which has passed through the release paper separator 126, passes under the front adhesive roller 127 and is pressed and attached to the surface of the bending band fabric 19 along the center line. It passes through the outlet (123).

Meanwhile, on the inlet 121 side of the band bending channel 120, a reinforcing plate insertion panel 128 is installed below the bending guide 124, thereby guiding the insertion of the reinforcing plate 25 as described later. do.

The method of manufacturing a vehicle interior band using the above-described device configuration consists of the sequence shown in FIG. 7. First, the sewing section (first section, second section) and the number of stitches for each section are set through an input window (not shown) for controlling the automatic sewing machine 110 (S1).

That is, the 'non-reinforced sewing section', which is the section in which the reinforcement plate 25 is not built into the band (20 in FIG. 2), that is, the section between the reinforcement plates 25 adjacent in the longitudinal direction, is set as the first section, Enter the length as the number of stitches to be sewn (ex. 50). Then, the section in which the reinforcement plate 25 is built-in, that is, the 'reinforcement sewing section', is set as the second section and its length is input as the number of stitches to be sewn (ex. 70) (with regard to data input of an automatic sewing machine, the above conventional method See Patent Publication No. 10-2013-0036969, which is described as a prior art document in technology).

The automatic sewing machine 110 set in this way is in a sewing standby state (S2), and when the operator steps on the pedal (not shown) of the sewing machine 110 (S3), the first section, that is, the non-reinforced sewing section, is sewn. Start (S4). After the automatic sewing machine 110 starts sewing, the operator must keep pressing the pedal, and if the pedal is released, the sewing machine 110 automatically stops sewing.

Sewing of the non-reinforced sewing section is performed as shown in FIG. 5. That is, the double-sided tape 27 is attached along the center line to the surface of the band fabric 19, which is folded in half while passing through the band bending channel 120, and the left and right sides of the band fabric 19 overlapped thereon (Figure 3 The inner end of 21 and 22) is attached.

In this way, when the automatic sewing machine 110 for sewing the non-reinforced sewing section reaches the input, that is, the set number of stitches for the corresponding section (S5), it enters a standby state to immediately stop sewing (S6). That is, even when the operator maintains the pedal, the automatic sewing machine 110 automatically stops sewing when the number of stitches in the non-reinforced sewing section is reached.

Then, as shown in FIG. 6, the worker inserts and pushes the reinforcement plate 25 into the reinforcement plate insertion panel 128, thereby attaching the reinforcement plate 25 to the surface of the band fabric 19 in the guide path portion 122. ) are overlapped. In this way, the front end of the reinforcement plate 25 is pushed into the outlet 123 so that it comes into contact with the sewing machine 110 (S7).

Next, the operator takes his or her foot off the pedal and then presses it again (S8), and the automatic sewing machine 110 starts sewing the next section, the reinforcement sewing section (S9).

Thus, when the number of stitches in the reinforcement sewing section is reached (S10), the sewing process returns to the initial sewing standby state (S2), and sewing in the non-reinforced sewing section is resumed again (FIG. 5).

Figure 8 is an actual manufacturing example of the vehicle interior band 20 manufactured by the above manufacturing method, and non-reinforced sewing is performed at the seam lines 23 and 24 from the natural flow between the non-reinforced sewing section and the reinforced sewing section as described above. It can be confirmed that the sewing is of uniform quality to the extent that it is difficult to distinguish the connection between the section (N) and the reinforcement sewing section (Y).

On the other hand, in the case of using a conventional sewing method that does not use the above manufacturing method, as shown in Figure 9, especially near the connection area between the non-reinforced sewing section (N') and the reinforced sewing section (Y'), specifically It can be seen that the seam lines 23' and 24' at the entry portion, where the thickness suddenly increases due to the reinforcement plate, are more irregular. This is largely dependent on the operator's skill level, and is generally the result of subtle manipulations, such as the operator slowing down the sewing speed when reaching the connection area.

Meanwhile, the vehicle interior band and its manufacturing method described above are only an example to aid understanding of the present invention, so the scope of rights and technical scope of the present invention defined by the claims described below are as described above. Not limited.

19: Band fabric 20: Band for vehicle interior
21, 22: Parts on both left and right sides in the width direction 23, 24: Seam line
25: reinforcement plate 26: inner part
27: double-sided tape 27a: release paper
101: Table 110: Automatic sewing machine
120: Band bending channel 121: Inlet
122: guide path part 123: outlet
124: bending guide 125: spaced roller stand
126: Release paper separator 127: Adhesion roller stand
128: Reinforcement plate insertion panel 130: Double-sided tape roll holder

Claims (4)

A band roll holder on which the band fabric is wound; an inlet having the same width as the band fabric and through which the band fabric pulled out from the band roll holder enters, an outlet having a width of half the band fabric and pulling out the band fabric in a state folded in half in the width direction, and a band bending channel in which a guide path portion is formed between the inlet and the outlet to continuously bend the band fabric in the width direction and fold it in half; In the method of manufacturing a band for vehicle interior using an automatic sewing machine for drawing and sewing the band fabric of the outlet,
A setting step of inputting a non-reinforced sewing section, a reinforced sewing section, and the number of stitches forming the non-reinforced sewing section and the reinforced sewing section into the automatic sewing machine;
A first step in which the automatic sewing machine sews the half-folded band fabric when the pedal of the automatic sewing machine is pressed;
a second step in which the automatic sewing machine automatically stops sewing when the number of stitches in the non-reinforced sewing section is reached;
One end of a reinforcement plate having a width of half the width of the band fabric and a length equal to the reinforcement sewing section is inserted in an overlapping state on the band fabric in the guide path portion of the band bending channel and folded in half at the outlet. A third step of preparing the band to be embedded in the fabric and brought into contact with the automatic sewing machine;
A fourth step in which the automatic sewing machine automatically sews the half-folded band fabric together with the built-in reinforcement plate when the pedal of the automatic sewing machine is pressed again;
A method of manufacturing a band for vehicle interior, comprising a fifth step in which the automatic sewing machine automatically stops sewing and returns to the first step when the number of stitches in the sewing section is reached. A band roll holder on which the band fabric is wound; an inlet having the same width as the band fabric and through which the band fabric pulled out from the band roll holder enters, an outlet having a width of half the band fabric and pulling out the band fabric in a state folded in half in the width direction, and a band bending channel in which a guide path portion is formed between the inlet and the outlet to continuously bend the band fabric in the width direction and fold it in half; In the method of manufacturing a band for vehicle interior using an automatic sewing machine for drawing and sewing the band fabric of the outlet,
A setting step of inputting a reinforcement sewing section and the number of stitches forming the reinforcement sewing section into the automatic sewing machine;
One end of a reinforcement plate having a width of half the width of the band fabric and a length equal to the reinforcement sewing section is inserted in an overlapping state on the band fabric in the guide path portion of the band bending channel and folded in half at the outlet. A first step of preparing the band to be embedded in the fabric and brought into contact with the automatic sewing machine;
A second step of automatically sewing the half-folded band fabric together with the built-in reinforcement plate by stepping on the pedal of the automatic sewing machine;
A method of manufacturing a band for vehicle interior, comprising a third step in which the automatic sewing machine automatically stops sewing when the number of stitches is reached. According to claim 1 or 2,
The manufacturing method of the vehicle interior band is
A double-sided tape roll holder on which the double-sided tape is wound; a bending guide installed on the guide path portion of the band bending channel to bend and retract the double-sided tape pulled out from the double-sided tape roll holder; a spacing roller bar installed on the guide path portion and in rolling contact with the double-sided tape to separate the double-sided tape passing through the bending guide bar from the band fabric; a release paper separator that guides the release paper to be separated from the double-sided tape that has passed through the roller stand; an adhesive roller base for attaching the double-sided tape that has passed through the release paper separator to the band fabric; A method of manufacturing a band for vehicle interior, further comprising using a reinforcing plate insertion panel installed at the inlet of the band bending channel and guiding the reinforcing plate to be inserted and stacked on the band fabric. A band for vehicle interior manufactured by the manufacturing method of claim 1 or 2.

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