JPH06238073A - Terminal fixing device of cover for covering cushion formed body - Google Patents

Abstract

PURPOSE:To provide a terminal fixing device capable of the terminal of a cover for covering a cushion formed body to the same cushion formed body with good appearance. CONSTITUTION:A terminal fixing device is provided with a rack 12 facing the side of the lower end part of a cushion formed body positioned, fixed and covered with a cover; a pinion 13 rotatably supported by a support member 15 and geared with the rack 12: a roller 14 supported by the support member in such a manner as to be integrally rotatable with the pinion 13 and holding a cover 43, when it makes contact with the cover 32, to closely adhere it to a cushion formed body in the stretched state; a driving means 16 for moving the support member 15 in such a manner as to be capable of advancing and retreating; a gas giving means 17 facing the roller 14 to give hot air and cold air into the roller 14 and supply them to the outer circumferential surface of the roller 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal fixing device for a cover that covers a cushion molded body.

[0002]

2. Description of the Related Art A seat cushion which constitutes a seat such as a vehicle seat is generally formed by covering a cushion molded body with a cover. Has been done. 7 (a), (b)
Indicates the terminal processing part of the seat cushion,
In the seat cushion, the frame wire 3a is embedded in the lower end portion of the side portion of the cushion molded body 1, and the hanging wire cloth is sewn to the side cotton cloth 3b sewn to the side end of the cover 2 covering the cushion molded body 1. 3c is inserted, and the side end of the cover 2 is fixed to the side lower end of the cushion molded body 1 by connecting the wires 3a and 3c to each other via the hog ring 4.

[0003]

By the way, when the above-mentioned terminal processing means of the cover is adopted, it is difficult to automate, so that the manual work is mainly performed manually. In addition, the cover 2 is generally formed to be slightly smaller than the cushion molded body 1. By pulling the cover 2 and connecting both wires 3a and 3c with the hog ring 4,
The seat cushion gives a feeling of tension. For this reason, there is a problem that a force is required for the work of tensioning the cover 2 and wrinkles are easily generated on the side portions of the cushion molded body 1 due to the difference in the force of tensioning by the operator. Therefore,
An object of the present invention is to provide a terminal fixing device that can mechanically perform a terminal fixing operation of a cover that covers a cushion molded body, and solve the above problems.

[0004]

SUMMARY OF THE INVENTION The present invention is a terminal fixing device for adhering and fixing an end of a cover for covering a cushion molded body to a lower end portion of the cushion molded body, which is positioned and fixed and covered with the cover. A rack facing the lower end of the cushion molded body laterally, a pinion rotatably supported by a support member and meshing with the rack, and a support member rotatably supported integrally with the pinion and in contact with the cover. At the same time, a roller for gripping the cover and tightly adhering to the cushion molded body in a tensioned state, a drive means for moving the supporting member so as to be able to move forward and backward, and a hot air and a cold air for applying the hot air and the cold air to the roller, It is characterized in that it is provided with gas supply means for supplying the outer peripheral surface of the roller.

[0005]

In the terminal fixing device constructed as described above, the following method is used to bond and fix the cushion molded body to the lower end of the cover covered with the cushion molded body. That is, first, the driving means of the terminal fixing device is operated to advance the support member. As a result, the pinion moves forward while meshing on the rack, and the roller rotates integrally with the pinion toward the end of the cover, and the roller comes into contact with the end of the cover and grips the end of the cover for a predetermined amount. Advance. As a result, the end of the cover is pressed and comes into close contact with the lower end of the cushion molded body in a tensioned state.

Then, the gas applying means is operated to apply hot air into the roller and supply the hot air to the outer circumference of the roller. As a result, hot air is applied to the contact portion between the cushion molded body and the end of the cover, and the hot melt adhesive interposed between the two is melted and the adhesive function is revealed. After that, the hot air is switched to cold air or negative pressure by the gas applying means,
When this is applied to the roller and cold air is applied to the contact portion between the cushion molded body and the end of the cover, the adhesive is hardened and both of them are firmly fixed.

Thus, according to the terminal fixing device,
Since the terminal fixing work of the cover can be performed mechanically without any manual work, the cover pulling work and other manual work are not required, and the tension of the cover can be made constant so that it can be applied to the side of the cushion molded body. Wrinkles do not occur, and such wrinkles do not become visible during use and impair the appearance.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show a terminal fixing device 10 according to the present invention. In this embodiment, the terminal fixing device 10 is used as a terminal fixing device for a vehicle rear seat, and as shown in FIG. 3, the conventional terminal processing device 20 is used as a central portion in accordance with the shape of the rear seat. It is used by arranging it on both the left and right sides. The conventional terminal processing device 20 is composed of a terminal folding jig 21 and an air cylinder 22, and the jig 21 is driven by the air cylinder 22.
, And the end of the cover (not shown) covered with the cushion molded body 31 is gripped by the jig 21 and folded back to the lower recess of the central portion of the cushion molded body 31 to be bonded.

Therefore, the terminal fixing device 1 according to the present embodiment.
As shown in FIGS. 1 and 2, reference numeral 0 denotes a rack 12 provided on the base 11, a pinion 13 meshing with the rack 12, a pair of left and right rollers 14, a support member 15, and an air cylinder 16 provided on the base 11. And a gas supply pipe 17. The rack 12 extends to the central lower surface of each seat portion of the cushion molded body 31. Both rollers 14 are integrated with the roller 14 with the pinion 13 sandwiched therebetween.
5 are rotatably supported by pipes 17 fixed to both left and right ends. The pinion 13 meshes with the rack 12 and moves forward and backward while rotating on the rack 12. At this time, both rollers 14 also move forward and backward while rotating.

The support member 15 is fixed to the tip of the piston rod portion 16a of the air cylinder 16, and is moved forward and backward by driving the air cylinder 16. Also, the support member 1
The pinion 13 is rotated by the forward and backward movements of 5 to move forward and backward on the rack 12, and at the same time, both rollers 14 are forwarded and retracted while rotating. As shown in FIG. 4, the roller 14 has a large number of needle-like protrusions 14a on the entire outer peripheral surface and a large number of ejection holes 14b penetrating the inner and outer peripheral surfaces. A pipe 17 faces the end of the roller 14, and a hot air supply source and a negative pressure supply source are connected to the pipe 17. The hot air supply source and the negative pressure supply source can be switched to each other.

The terminal fixing device 10 having the above structure is
It operates as shown in FIGS. 5 and 6 to fix the end of the cover to the cushion molded body. Both of these figures are explanatory views schematically showing the operation of the terminal fixing device 10.

FIG. 5A shows a state in which the cushion molded body 31 covered with the cover 32 is positioned and fixed on the base 11, and in this state, the terminal fixing device 10 is constructed. The tip of the rack 12 faces the lower end of the cushion molded body 31. In this state, the pressing tool 33 of the cushion molded body 31 is lowered to grip the cover 32 on the cushion molded body 31, the cushion molded body 31 is bent by a predetermined amount, and the air cylinder 16 is driven to support the support member 15. To move forward. As a result, the pinion 13 supported by the support member 15 moves forward while rotating on the rack 12 in the direction of the arrow shown in FIG. 7B, and at the same time, both rollers 14 move forward while rotating in the same direction. As shown in c), the lower end portion of the cushion molded body 31 is reached. At this time, the roller 14 grips the end of the cover 32 by the needle-like protrusions 14a provided on the outer periphery thereof, and pulls the cover 32 into tension to bring it into pressure contact with the lower end surface of the cushion molded body 31.

FIG. 2 shows this state. In this pressure contact state, hot air is supplied to both rollers 14 through the pipe 17. The supplied hot air is ejected from the ejection holes 14b of the roller 14 toward the outer peripheral side, and the cushion molded body 31 and the cover 32 are provided.
The adhesive is supplied to the pressure-contacting portion of the terminal and melts the hot-melt adhesive present in the portion to make the adhesive force manifest. Then, the supply of hot air is stopped and a negative pressure is applied.
As a result, the hot air in the vicinity of the pressure-bonded portion of the end of the cushion molded body 31 and the cover 32 is sucked and the outside air is sucked, the pressure-bonded portion is cooled, the melted adhesive is hardened, and the pressure-bonded portion is solidified. It is fixed.

After the fixing step is completed, the pressing tool 33 is lifted to release the pressing on the cushion molded body 31, and the air cylinder 16 is driven again to retract the support member 15. As a result, the pinion 13 reversely rotates and retracts, and at the same time, both rollers 14 reversely rotate and retract.
In this case, since the cushion molded body 31 is released and returns from the bent state, the roller 14 is separated from the cover 32 as shown in FIG. 6A, and the pinion 13, the roller 14 and the support member 15 are shown in FIG. 6B. As shown in, return without any problems.

As described above, according to the terminal fixing device 10, the terminal fixing work of the cover 32 can be performed mechanically without manual work, and manual work such as pulling work of the cover 32 is not required. At the same time, the tension of the cover 32 can be made constant so that wrinkles do not occur on the side portions of the cushion molded body 31, and such wrinkles do not become apparent during use.

[Brief description of drawings]

FIG. 1 is a perspective view of a terminal fixing device according to an embodiment of the present invention.

FIG. 2 is a side view of the terminal fixing device in use.

FIG. 3 is a perspective view of a terminal processing device incorporating the terminal fixing device.

FIG. 4 is a sectional view of a roller that constitutes the terminal fixing device.

FIG. 5 is an explanatory diagram showing an operating state in the fixing step of the same-end fixing device.

FIG. 6 is an explanatory diagram showing an operating state after the end of the fixing step of the terminal fixing device.

7A and 7B are a longitudinal sectional view (a) and a partially enlarged vertical sectional view (b) of a terminal processing portion of a seat cushion which is terminal processed by adopting a conventional terminal processing means. Is.

[Explanation of symbols]

10 ... Terminal fixing device, 11 ... Base, 12 ... Rack, 13
... pinion, 14 ... roller, 14a ... needle-like projection, 14b
... Jet holes, 15 ... Support member, 16 ... Air cylinder, 17
... Gas supply pipe, 31 ... Cushion molding, 32 ... Cover.

Claims (1)

[Claims] 1. A terminal fixing device for adhering and fixing an end of a cover for covering a cushion molded body to a lower end portion of the cushion molded body, wherein a lower end portion of the cushion molded body covered by the cover is positioned and fixed. A rack facing sideways, a pinion rotatably supported by a support member and meshing with the rack, and a support member rotatably supported integrally with the pinion by the support member and gripping the cover when the cover comes into contact with the rack and tension. In this state, the roller is brought into close contact with the cushion molded body, a driving means for moving the support member so as to be able to move forward and backward, and a gas that faces the roller and supplies hot air and cold air to the roller to supply the outer peripheral surface of the roller. An end fixing device for a cover for covering a cushion molded body, which is provided with an applying means.