JP2004290622A - Device for matching seat cover to seat pad of seat for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain stable quality in a seat for an automobile by eliminating a work to pull a seat cover by a worker with hands and to allow the sewing line of the seat cover to meet the ridge of a seat pad, omitting re-adjustment, and efficiently allowing the sewing line of the seat cover to meet the ridge of a back pad. <P>SOLUTION: A matching device includes: a set base 1 for positioning and placing a work W; a work pressing bar 2 for pushing and supporting the work W placed on the set base 1 from an upper part; and work holding arms 3 for holding and supporting the work W at a part near the board surface of the set base 1 from both left and right sides. The work holding arms 3 are held by a driving cylinder 33 for vertically stroking and moving the whole arms. The arms 3 are defined as a jig for scrubbing up the work W from the left and right sides, and matching the sewing line L of the seat cover C to the ridge of the seat pad P. The whole arms are freely removable from the driving cylinder 33, and defined as the jig for matching the work W and transferring it to a seat cover adhering process. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides a work in which a three-dimensionally sewn seat skin is put on a seat pad on which a seat frame of an automobile seat is assembled, and before the seat skin is bonded to the seat pad, a seating surface of the seat skin is provided. The present invention relates to a device for matching a sewing line between a front side and a side skin to left and right ridges protruding forward of a seat pad.
[0002]
[Prior art]
In general, as an example of a seat back of an automobile seat, as shown in FIG. 9, a seat back frame F is assembled behind a back pad P, and a seat skin C sewn in a three-dimensional bag shape is put on the back pad P. There is a specification in which the adhesive applied to the inner surface side of the sheet skin C is heated and melted, and the sheet skin is pressure-bonded to the seating surface portion of the back pad P, so that the shape of the sheet skin C is matched to the back pad P.
[0003]
In a state where covered the seat upholstery C back pad P, the seat upholstery C from pulling tension is applied to the rear side of the back pad P, as shown in Figure 10, the bearing surface bearing surface of the skin c ₁ is the back pad P lifted from the portion, the sewing line L between the seating surface skin c ₁ and side skin c ₂ of the seat skin C deviates to the rear side of the pack pad P.
[0004]
Conventionally, in the lamination step of the seat skin, prior to bonding the seat skin C back pad P, seating surface skin c ₁ of the seat skin C manually worker as shown in Figure 11 and side skin c ₂ The shape of the sewing line L is adjusted to the right and left ridges that protrude forward of a back pad (not shown). However, even if the shape is adjusted, if the operator releases his / her hand from the seat skin, the sewing line returns due to the tension of the seat skin.
[0005]
For this reason, as shown in FIG. 12, the boundary between the seat surface portion and the bank surface portion of the seat skin C is pressed from above by the grooved bar B provided in the sheet skin laminating step, and the worker is seated on the seat skin. The sewing line L of the sheet skin C is attached to the back pad (not shown) again by manually aligning the sewing line L of the sheet skin C with the back pad (not shown). The shape is kept in conformity with the ridge line.
[0006]
In the bonding of the sheet skin as described above, an extremely inefficient and laborious operation is required. Further, when the operator manually pulls the sheet skin, there is no reference for positioning the sewing line, and the shape is determined arbitrarily, so that the quality cannot be stabilized.
[0007]
[Problems to be solved by the invention]
The present invention eliminates the need for an operator to pull the seat skin by hand to adjust the sewing line of the seat skin to the ridge line of the seat pad, and also eliminates the need for readjustment work. It is an object of the present invention to provide a seat skin shape matching device for a seat pad of an automobile seat that can be efficiently adjusted to a ridge line and stabilize quality.
[0008]
[Means for Solving the Problems]
In the apparatus for matching the shape of a seat skin to a seat pad of an automobile seat according to claim 1 of the present invention, a three-dimensionally sewn seat skin is put on a seat pad on which a seat frame is assembled to form a work. Prior to bonding to the seat pad, the sewing line of the seat skin and the side skin of the seat skin is matched with the left and right ridges that protrude forward of the seat pad,
A set base for positioning and placing a work with the seat surface equivalent part facing upward, a work holding bar that pushes and supports the work placed on the set base from above, and the work from the left and right sides near the plate surface of the set base With a work holding arm to support and embrace,
The work holding arm is provided with left and right support shafts having shaft bending shapes substantially corresponding to the ridge line of the seat pad, and a connecting coupler capable of dividing the support shaft into right and left, and a cross beam connecting the support shafts at one shaft end. The entire arm is held by a drive cylinder that moves vertically up and down, and the work cylinder is lifted from both sides by the left and right support shafts by the rising stroke of the drive cylinder, and the sewing line of the seat skin is moved to the ridgeline of the seat pad. With the jig that holds the shape according to the shape, and the entire arm is detachably provided from the drive cylinder, the work with the sewing line of the seat skin aligned with the ridge line of the seat pad is held by the left and right spindles from both sides. The whole arm is removed from the drive cylinder, and the work is provided as a jig for transferring the work while preserving the work in the process of bonding the seat skin to the seat pad It is.
[0009]
According to a second aspect of the present invention, there is provided an apparatus for adjusting the shape of a seat skin with respect to a seat pad of an automobile seat, comprising a spindle portion covered with an axis cover made of a material having a frictional force with respect to the seat skin.
[0010]
According to a third aspect of the present invention, there is provided an apparatus for adjusting the shape of a seat cover with respect to a seat pad of an automobile seat, wherein the headrest is inserted through a through hole of a headrest stay provided on the seat cover into a holder for a headrest stay provided on a seat frame. It is configured by providing an assisting tool for aligning the through hole of the stay with the holder for the headrest stay.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
The embodiment shown in FIG. 1 will be described below with reference to FIGS. 1 to 8. In the embodiment shown in FIG. 1, in assembling a seat back of an automobile seat similar to that shown in FIG. On the sheet P, a work W is formed by covering the sheet skin C, and before sewing the sheet skin C to the back pad P, the sewing line L of the sheet skin C is aligned with the ridge line R of the back pad P on both the left and right sides. Has been applied. A headrest (not shown) is detachably provided on the seat back.
[0012]
Its seat skin C, as well as adjust stitch a predetermined seating surface skin c ₁ was cut to a plane shape and side skin c _2, back epidermis together sewing (not shown) to open the lower side three dimensional bag-like Is sewn. The seat skin C is provided with a through hole for a headrest stay (not shown in FIG. 1, see reference numeral “H” in FIG. 8). The seat back frame F is provided with a holder for the headrest stay (not shown in FIG. 1; see reference numeral “S” in FIG. 8).
[0013]
As a device applied to the shape adjustment of the seat skin, there are a set table 1 for positioning and mounting a work W with a seat portion facing upward, and a work holder for pressing and supporting the work W mounted on the set table 1 from above. A bar 2, a work holding arm 3 that embraces and supports a work W from the left and right sides near the plate surface of the set table 1, and an auxiliary tool 4 that is inserted through a through hole of the headrest stay into a standing holder of the headrest stay. Have been.
[0014]
The set base 1 is designed to place the work W on the side where the bracket plate (without reference numeral) of the seat back frame F projects, assuming that the side where the worker brings in the work W is the front side. Based on the set table 1, various types of mechanism parts, which will be described later, including a work holding bar 2 and a work holding arm 3, are mounted.
[0015]
The work holding bar 2 is provided with a pair of right and left holding bars 20a and 20b for holding the work W from the front upper portion, using the boundary between the seat surface portion and the bank surface portion of the seat skin C as a guide. The holding bars 20a and 20b are connected to and fixed to the shaft base on the axis of the rotation support shaft 21, and a pair of stand leg portions 22a for standingly installing the rotation support shaft 21 at the left and right corners on the back side of the set table 1. , 22b, and a drive cylinder 23, which is installed substantially upright at the center of the stand legs 22a, 22b on the back side of the set table 1, is linked to the rotary support shaft 21, and the vertical stroke of the drive cylinder 23 Thus, it is provided so as to be able to fall forward or move up.
[0016]
The work holding arm 3 is assembled from left and right support shaft portions 30a and 30b, and a cross beam portion 31 connecting the support shafts 30a and 30b to each other at one shaft end. The support shaft portions 30a and 30b have a shaft bending shape substantially corresponding to the ridge line R of the back pad P. That is, since the work W is placed with the side on which the bracket plate of the seat back frame F protrudes as the back side, the work W is bent in a substantially U-shape having a portion corresponding to the waist support of the occupant as a vertex. The cross beam part 31 is provided with a connection coupler 32 which can be screwed or detached on the axis so that the support shaft parts 30a and 30b can be divided into right and left parts.
[0017]
The entire arm is held by a drive cylinder 33 that moves vertically. The drive cylinders 33 are mounted on both sides of the set table 1 in a left-right pair (only one side is shown). Due to the rising stroke of the drive cylinder 33, the work holding arm 3 lifts the work W from both sides by the left and right support shaft portions 30a and 30b, and holds the sewing line L of the sheet skin C along the ridge line R of the back pad P. It is provided as a forming jig.
[0018]
The drive cylinder 33 is provided with holder plates 34a and 34b of the entire arm attached to the rod end so as to maintain a horizontal posture. Each of the holder plates 34a and 34b is provided with two rising pipes 35a, 35a ', 35b and 35b' on a plate surface. On the other hand, the upright pipes 35a, 35a ', 35b, 35b' and the upright shafts 36a, 36a ', 36b, 36b' which can be freely inserted and removed are mounted on the support shafts 30a, 30b, two by two. .
[0019]
From this configuration, the work holding arm 3 is provided with the entire arm including the upright shaft portions 36a, 36a ', 36b, 36b' detachably from the drive cylinder 33, and the sewing line L of the sheet skin C is connected to the ridge line R of the back pad P. The jig is provided as a jig for holding and holding the workpiece W in the process of attaching the sheet skin to the seat pad while holding the workpiece W fitted on both sides by the left and right spindle portions 30a and 30b.
[0020]
The auxiliary portion 4 is assembled from a pair of right and left fitting shaft portions 4a and 4b inserted into a holder for the headrest stay through through holes of the headrest stay, and a handle shaft portion 4c for connecting and holding the fitting shaft portions 4a and 4b. ing. In addition, the work holding arm 3 is provided with support shaft portions 30a and 30b covered with rubber-made axis covers 37a and 37b having a frictional force against the sheet skin.
[0021]
In addition to the above-described configuration, additional equipment for positioning and mounting the work W on the plate surface of the set table 1 and positioning and holding the auxiliary tool 4 is provided. As accessory equipment, receiving plates 5a and 5b for pinning and supporting the bracket plate of the seat back frame F are provided so as to project forward from the stand legs 22a and 22b of the work holding bar 2. Also, a pair of right and left rising frames 6a and 6b for hanging and supporting the auxiliary tool 4 with the hand shaft portion 4c are mounted upright on the front side of the set table 1.
[0022]
In the seat skin shape matching apparatus for the seat pad configured as described above, the work W is placed on the plate surface of the set table 1 while the drive cylinder 33 is kept in a lowered state as shown in FIG. At this time, since the fitting shaft portions 4a and 4b of the auxiliary tool 4 are inserted into the upright holder of the headrest stay through the through holes of the headrest stay, at least the upper side of the seat skin C is matched. in a state where the sewing line L is shifted to the rear side of the pack pad P of the seating surface skin c ₁ and side skin c _2.
[0023]
The work W is supported by pinning the bracket plate of the seat back frame F with the receiving plates 5a and 5b and supporting the handle shaft 4c of the assisting tool 4 on the rising frames 6a and 6b. Are positioned and mounted on the plate surface of the set table 1. When the work W is positioned and mounted on the plate surface of the set table 1, the work holding arm 3 moves the work W by the support shafts 30a (30b) as shown in FIG. Embrace and support.
[0024]
After the work W is positioned and mounted on the plate surface of the set table 1, the drive cylinder 23 is moved upwardly to lower the work holding bar 2 as shown in FIG. The work W is pressed from the upper part near the front by the pair of right and left holding bars 20a and 20b with the boundary between the parts as a guide. When the work W is pressed from above by the holding bars 20a and 20b, the work W is reliably positioned and mounted on the plate surface of the set table 1 so as not to float with the next upward stroke by the drive cylinder 33.
[0025]
After the work W is pressed from above by the holding bars 20a and 20b, the working cylinder 33 is then moved up as shown in FIG. With the rising stroke of the working cylinder 33, the support shaft portions 30a and 30b of the work holding arm 3 lift the work W from both sides. At this time, in addition to the fact that the work W is pressed by the holding bars 20a and 20b, the sheet skin C is lifted up so that the sewing line L is aligned with the ridge line R of the back pad P as shown in FIG.
[0026]
Since the support shaft portions 30a and 30b of the work holding arm 3 have an axial bending shape substantially corresponding to the ridge line R of the back pad P, the sewing line L of the sheet skin C is aligned with the ridge line R of the back pad P over the entire length. Can be matched. Further, since the support shaft portions 30a and 30b of the work holding arm 3 are covered with the axial covers 37a and 37b made of a rubber material having a frictional force with respect to the seat skin, the seat skin C is surely lifted up. The sewing line L can be accurately aligned with the ridge line R of the back pad P.
[0027]
Together sewing line L of the seat skin C the ridge R of the back pad P, seating surface skin c ₁ of the seat skin C is at slipped inside the back pad P to keep the border between the seat surface portion and the bank surface portion The shape is familiar with the seat surface of the back pad P. At this time, since at least the upper side of the seat skin C is shaped by the auxiliary tool 4, the seat back C is shifted inside the back pad P so as to maintain the boundary between the seating surface portion and the bank surface portion of the seat skin C. The familiar shape-retaining shape of the pad P with respect to the seating surface portion can be favorably maintained.
[0028]
When the spindle portions 30a and 30b of the work holding arm 3 are rolled up to the ridge line R of the back pad P, the plane area of the back pad P is slightly wider on the front side than on the back side. The portions 30a and 30b hold and hold the work W from both sides, so that the sewing line L of the sheet skin C can be kept in alignment with the ridge line R of the back pad P.
[0029]
When the sewing line L has been adjusted, the work holding bar 2 is lifted upward and retracted as shown in FIG. 7, and the entire work including the work holding arm 3 holding and holding the work W from both sides is set on a set table. Remove from 1. The work W can be easily removed by extracting the upright shaft portions 36a, 36a ', 36b, 36b' of the support shaft portions 30a, 30b from the rising pipes 35a, 35a ', 35b, 35b' of the holder plates 34a, 34b. Can be done.
[0030]
The work W is transferred to the step of bonding the sheet skin to the seat pad while being held and held by the work holding arm 3. In the sheet skin laminating step, the work W is placed on the set mold T as shown in FIG. 8, and the boundary between the seating surface portion and the bank surface portion of the sheet skin C is pressed from above by the grooved bar B. Then, the work holding arm 3 is removed from the work W.
[0031]
The work holding arm 3 can be easily removed because the connecting coupler 32 is detached by unscrewing the male and female screws to separate the support shafts 30a and 30b from the horizontal beam 31 to the left and right. In the detached state of the work holding arm 3, the boundary between the seat surface portion and the bank surface portion of the seat skin C is pressed from above by the grooved bar B, so that the sewing line L of the seat skin C is moved to the back pad P. The sheet skin C can be bonded to the back pad P as usual by bonding the sheet skin C while keeping the state aligned with the ridge line R.
[0032]
In the removed work holding arm 3, the support shaft portions 30a and 30b are integrally assembled from the cross beam portion 31 with the connection coupler 32, and the upright shaft portions 36a, 36a ', 36b, and 36 of the support shaft portions 30a and 30b are restored as before. 36b 'may be returned to the set table 1 by inserting it into the rising pipes 35a, 35a', 35b, 35b 'of the holder plates 34a, 34b. In addition, the auxiliary tool 4 may place the work W on the set mold T, or remove the work W from the work W after bonding the sheet skin C, and then return to the original state.
[0033]
When the bonding process of the seat skin to the seat pad is performed in this manner, the worker does not need to pull the seat skin by hand to adjust the sewing line of the seat skin to the ridge line of the seat pad, and also eliminates the readjustment operation. In addition, the sewing line of the seat skin can be efficiently aligned with the ridge line of the back pad, and the quality can be stabilized.
[0034]
Although the above-described embodiment has been described based on the case where a seat back with a detachable headrest is manufactured, the present invention can also be applied to the manufacture of a seatback integrated with a headrest. Further, the present invention is not limited to a seat back, and can be applied to manufacture a seat cushion. When manufacturing the seat back and the seat cushion integrated with the headrest, the auxiliary tool 4 becomes unnecessary.
[0035]
【The invention's effect】
As described above, according to the apparatus for matching the shape of a seat skin to a seat pad of an automobile seat according to claim 1 of the present invention, a set table on which a work is positioned and mounted, and a work mounted on the set table are placed from above. It has a work holding bar that pushes and supports, and a work holding arm that embraces and supports the work from both left and right sides near the plate surface of the set table.The work holding arm is held by a drive cylinder that moves the entire arm up and down, A jig that holds the sewing line of the seat skin in line with the ridge line of the seat pad by holding the work up and down from both left and right sides by the rising stroke of the drive cylinder is provided, and the entire arm is detachably provided from the drive cylinder. The entire arm is driven while holding the workpiece with the sewing line of the By attaching the jig as a jig for holding and transferring the work in the process of bonding the sheet skin to the seat pad, the worker pulls the sheet skin by hand and adjusts the sewing line of the sheet skin to the ridgeline of the seat pad This eliminates the need for work and eliminates the need for re-adjustment work. The sewing line for the seat skin can be efficiently aligned with the ridgeline of the back pad, and the quality can be stabilized.
[0036]
According to the apparatus for matching the shape of a seat skin to a seat pad of an automobile seat according to claim 2 of the present invention, a seat shaft covered with an axis cover made of a material having frictional force against the seat skin is provided. The sewing line of the seat skin can be precisely aligned with the ridge of the back pad.
[0037]
According to the seat skin shape matching device for the seat pad of the automobile seat according to claim 3 of the present invention, by providing an assisting tool for aligning the through hole of the headrest stay and the holder for the headrest stay, Since the through hole of the headrest stay and the holder for the headrest stay can be accurately positioned, and at least the upper part of the seat skin can be shaped with the aid, the boundary between the seat surface portion and the bank surface portion of the seat skin can be adjusted. It is slipped inside the back pad so as to keep it, and the familiar shape retention to the seat surface portion of the back pad can be kept well.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing an apparatus for adjusting the shape of a seat skin with respect to a seat pad of an automobile seat according to the present invention, together with a work.
FIG. 2 is an explanatory view showing a setting state of a work in the apparatus of FIG. 1;
FIG. 3 is an explanatory diagram showing an assembled state of a work holding arm accompanying the work set of FIG. 2;
FIG. 4 is an explanatory diagram showing an operation state of a work holding bar subsequent to the work set of FIG. 2;
FIG. 5 is an explanatory view showing a work-up state of a work holding arm following the work holding of FIG. 4;
FIG. 6 is an explanatory view showing a state in which a work is lifted up by the work holding arm in FIG. 5;
FIG. 7 is an explanatory view showing a state in which the workpiece is continuously removed after the workpiece is lifted up in FIG. 5;
FIG. 8 is an explanatory view showing a set state in which the work of FIG. 7 is placed on a lamination type of a sheet skin.
FIG. 9 is an explanatory view showing a partial cross section of an automobile seat back with a detachable headrest according to a general example.
FIG. 10 is an explanatory view showing an assembled state in which a normal seat cover is placed on a seat pad.
FIG. 11 is an explanatory view showing a work of matching the shape of the seat skin to the seat pad performed before the bonding of the seat skin according to the conventional example.
FIG. 12 is an explanatory view showing a work of matching the shape of a seat skin with respect to a seat pad in a sheet skin bonding process according to a conventional example.
FIG. 13 is an explanatory diagram showing a shape matching state of a seat skin with respect to a normal seat pad.
[Explanation of symbols]
W Work F Seat frame P Seat pad R Seat pad ridge line C Seat skin c ₁ Seat surface skin c ₂ Seat surface skin L Seat skin sewing line 1 Work setting table 2 Work holding bar 3 Work holding arm 30a, 30b Support shaft Part 31 cross beam part 32 connection coupler 33 drive cylinders 37a, 37b axis cover 4 auxiliary tool

Claims (3)

The seat pad assembled with the seat frame of the automotive seat is covered with a three-dimensionally sewn seat skin to form a work, and before the seat skin is bonded to the seat pad, the seat skin and the side skin of the seat skin are joined together. A device that shapes the sewing line to the left and right ridges protruding forward of the seat pad,
A set table for positioning and mounting a work with the seat surface part facing upward, a work holding bar for pressing and supporting the work mounted on the set table from above, and holding and supporting the work from both left and right sides near the set table Equipped with a work holding arm,
The work holding arm is provided with left and right support shafts having shaft bending shapes substantially corresponding to the ridge line of the seat pad, and a connecting coupler capable of dividing the support shaft into right and left, and a cross beam connecting the support shafts at one shaft end. The entire arm is held by a drive cylinder that moves vertically up and down, and the work cylinder is lifted from both sides by the left and right support shafts by the rising stroke of the drive cylinder, and the sewing line of the seat skin is moved to the ridgeline of the seat pad. With the jig that holds the shape according to the shape, and the entire arm is detachably provided from the drive cylinder, the work with the sewing line of the seat skin aligned with the ridge line of the seat pad is held by the left and right spindles from both sides. The whole arm is removed from the drive cylinder, and the work is provided as a jig for transferring the work by preserving the work in the process of bonding the seat skin to the seat pad. Shape mating device for a seat skin for a seat pad for an automobile seat that. 2. The apparatus according to claim 1, further comprising a support shaft covered with an axis cover made of a material having a frictional force with respect to the seat skin. It is equipped with an auxiliary tool that inserts the through hole of the headrest stay provided on the seat cover into the holder holder of the headrest stay provided on the seat frame, and aligns the through hole of the headrest stay with the holder of the headrest stay. The apparatus for matching the shape of a seat skin to a seat pad of an automobile seat according to claim 1.

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