JPH0624931B2 - Manufacturing method of connecting hood for vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a hood structure in a vehicle connecting hood, and particularly proposes an improvement in a structure in which a hood sheet is stretched over a hood frame.

[Conventional technology]

Conventionally, a vehicle-attached hood structure is formed by annularly forming a hood bone in which a plurality of elastic steel wire rods are arranged in parallel, and then the hood sheet is sewn with a sewing machine and attached, which requires a great deal of time and effort to attach the hood sheet. It is difficult to improve the work efficiency and increase the manufacturing cost. In order to improve this, the present applicant has previously proposed Japanese Patent Publication No. 53-4281, in which the top frame is made up of a large number of elastic steel wire rods (3'a) as shown in FIG. 8 (1).
Later is placed flat on the development of the canopy frame form (3 ') on the hood sheet to be stretched該幌frame (B ₁₎ from, as shown in FIG. 8 (3) Horokotsu (3a ) Along the longitudinal direction of the tape-shaped hood sheet (B ₂ ), both edges (B ₂ ′) of the tape-shaped hood sheet (B ₂ ′) are welded to the laid hood sheet (B ₁ ), and the hood frame (3 ′) is attached to the hood sheet ( 3 ′). This is to form a hood structure attached to B ₁ ) (see Fig. 8 (2)). However, in the vicinity of the connecting hood bone where each hood bone of the hood frame (3 ′) is adjacent,
B etc., the space becomes narrow and the tape-shaped hood sheet (B
There is a concern that not only the welding work of ₂ ) is difficult, but also the peeling resistance strength of the welded portion after forced execution becomes weak. Hood frame
Since (3 ') is generally curved, the welding speed to the hood sheet (B ₁ ) also slows down.This tendency is due to the fact that the welding width is wide and the hood sheet thickness is large in order to obtain the welding strength. The constraint on welding was added to the work efficiency.
Also, the time and labor required for cutting the tape-shaped hood sheet (B ₂ ) that matches the shape of the hood frame (3 ′) and the arrangement of the side edge hood frames (B ₂ ′) of the covered hood sheets for each hood frame. Many stepped welding boundaries are exposed and unstructured, and wrinkles due to external influences are observed due to hard-soft disproportionation at the welding portion, and these corrections have been a problem.

[Problems to be solved by the invention]

In the structure in which the hood sheet is attached to the hood frame (3 ′) described above, the number of the bent skeletons formed by alternately connecting the hood frames 3a, 3a ... Since it was necessary to cover a large number of tape-shaped hood sheets (B ₂ ) for each hood bone, there was a problem in the welding operation. Therefore, in the present invention, when the hood sheet (B1) is attached to the hood frame (3′a), the hood sheet of the rectangular tubular hood structure is superposed on the double hood sheet of the inner and outer hood sheets to form an intermediate portion of the hood sheet. The hood frame is configured to be tightly held in the portion, and the hood sheets on both sides of the squeezing holding portion are stretched on the intermediate layer of the hood sheets on both sides via the hood frame by the welding means. Thus, it is an object of the present invention to provide a hood structure that can more reliably and easily stretch the hood sheet on the hood frame and increase the work efficiency.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention places a hood sheet on which a hood sheet is laid on a hood frame, in which a plurality of arrayed hood bones are flatly developed in a predetermined frame, and Another hood sheet that covers the hood frame is stacked, the hood frame is placed in a state of being sandwiched between the hood sheets, and the hood sheets are integrally polymerized by welding through the hood frame to form an intermediate portion between the hood sheets. A gist is that a hood frame is loosely fitted in a portion of the hood and the hood frame is folded to form a rectangular hood structure.

[Work]

A hood frame in which adjacent hoods are independently and in parallel arranged on one side hood sheet (outer hood sheet) on which the hood frame is to be placed is first positioned by the skeleton of the hood frame. When another thin hood sheet (inner hood sheet) that covers the entire hood frame is overlaid and the nearest part of each hood bone of the hood frame is welded from above, the hood frame is formed between the two hood sheets. Hold on. Therefore, in this state, the hood bone is loosely inserted between the polymer hood sheets at the portion where the hood bone contacts the polymer hood sheet, and the polymer hood sheets on both sides of the hood bone are fused and welded to each other. Bone metastasis is prevented. In addition, wrinkles are not generated due to the external force of the tension hood sheet generated on the hood bone part. It is flexible enough to move slightly around the hood bone, and the welded parts of both hood sheets form a flexible flange, which is equivalent to an elastic fold that can bend between the hood and the surrounding hood. To form a part. Further, there is no fear that the hood frame held tightly between the multi-layered sheets will be pulled out in the longitudinal direction of the hood body after being bent and made into a three-dimensional rectangular tube shape.

Also, when the developed hood frame is integrated with the covered hood sheet by interposing it between the overlapped hood sheet and the superposed hood sheet by an adhesive instead of the welding means, the hood frame with the hood frame mounted thereon is used. Adhesive is applied to the entire surface of the sheet or at a predetermined interval and a hood frame is placed on the sheet, and the hood bone is pressed at the same time from above in the same manner as in the welding operation. The frame can be firmly held between the polymerized hood sheets. Therefore, even in this state, the hood frame is stably developed between the polymerized hood sheets as in the case of the above-mentioned welding means, and then the fold-corresponding part of the three-dimensional hood structure has a multi-layer composition and a total strength. Withstands long-term fatigue. In addition, even when the folds are bent, the elastic force called waist is applied, and the multi-layer hood sheet around the hood bone protects the top body from tilting and rolling. The reaction force to the top bones is reduced, the abrasion damage between the top bones is prevented, and the compression pressure can be adjusted.

〔Example〕

 Next, the present invention will be described with reference to the accompanying drawings.

Referring to FIG. 1, (3a) is a hood made of elastic steel wire rods, which are independently formed in parallel to each other and are formed in a predetermined hood frame (3) frame structure (parallel type). (Or a sizing machine) is laid on the workbench of the above-mentioned hood frame (3), and the outer hood sheet (1) on one side made of a synthetic resin processed cloth cut according to the form of the hood frame (3) is laid and the sheet (1 ) The top frame (3) is placed on the top. The entire top frame (3) is covered, and the inner side top sheet (2) on the other side, which is thin and is made of the same or similar material as the outer top sheet (1), is overlaid, and from the top of FIG. As shown in (plan view taken along the line X-X in FIG. 2), the nearest portion of the hood, that is, the welded portions (4), (4)
Are welded to the outer hood sheet (1) by a high-frequency welding machine, and each hood bone (3a) of the hood frame (3) is attached to the both side hood sheets (1), (2).
It is loosely inserted and held by the middle layer of the top frame (3)
Is attached between the double hood sheet structures that are integrally polymerized via the welding layer (W). In this way, the hood frame (3) sandwiched between the intermediate portions of the two-sided hood sheets that are integrally polymerized in this way is bent from the horizontally expanded state to form the rectangular hood structure (A).
In this state, as shown in FIG. 2, the lower part of the floor of the hood construct (A) is joined by the appropriate connecting tool (not shown) between the front ends of the hood bones (3a) facing each other. (8) is a drainage circular hole that communicates with the outside of the hood body that penetrates the hood sheet under the floor.

In addition, a hood frame is provided in the middle of the hood sheets (1) and (2) on both sides.
When (3) is attached, an adhesive may be used instead of the welding means, and the same operation can be performed. That is, the feeding adhesive is applied on the sizing machine base of the outer hood sheet (1), the hood frame (3) is placed on it, and the hood frame (3) is temporarily attached to cover the entire hood frame (2). ) To cover the top bone (3a)
Pressure is applied to the vicinity of the periphery, and the top frame (3) is polymerized as shown in FIG. 4 which shows the same structural portion as the X-X line sectional plan view when the welding means shown in FIG. 2 is used. The inner hood sheet (2) is pressure-bonded to the hood sheet (1) via the adhesive layer (5) in a state of being sandwiched between the hood sheets and polymerized integrally. The adhesive applied on the outer hood sheet (1) should be grooved on the entire surface of the hood sheet (1) or on one side of the hood frame where it is placed or on the hood bone (3a) where it abuts the outer hood sheet. It may be applied to the required width on the part divided into two surfaces on both sides.

Next, the operation of the embodiment will be described.

About Fig. 1 The hood frame (3) is a hood frame (3
Inner hood sheet (2) over the entire hood frame (3) mounted on the outer hood sheet (1) in a so-called side-by-side manner in which a) are independently arranged in parallel.
As shown in FIG. 8, the tape-shaped hood sheet (B ₂ ) is attached to the hood, as shown in FIG. 8, by stacking the hoods and adhering them in a straight line along the longitudinal direction of the hood (3). Compared to the so-called chain type in which the hood frame (3 ') is covered in a zigzag shape and the hood frame (3') is covered in a zigzag shape, the space between the hood bones is relatively Since it can be performed linearly in a wide range, it can be performed easily, reliably and quickly. Also both sides hood sheet
The hood body (A) formed in the rectangular tubular hood structure (A) by three-dimensionalizing the hood frame (3) held in the middle of (1) and (2) is a stretchable hood. FIG. 5 and FIG. 7 (plan view taken along the line YY of FIG. 5)
As shown in FIG. 2, when the vehicle C, C is attached to the vehicle metal frame 9 by the conventional technique, the upper and lower sides of the top bone (3a) are respectively adjacent to each other by different upper and lower sides of the top bone (3a). Each with the upper and lower pressers (6a) and (6a) of the connecting metal fittings (6), and pinch them, and then insert the vault (6b) into the polymerized hood sheet to insert the nut (6c).
The hood frame (3) can be formed into a chain form by fastening and being integrated with each other so as to prevent the sagging phenomenon due to its own weight at the central portion of the stretchable hood. When the structure of the hood (A) is deformed into a chain structure, the required hood frame (3)
It is needless to say that the overlapped hood sheets (1) and (2) to be attached need to be cut to an allowance so that the hood bone (3a) can be formed to be inclined so as to be movable to some extent. That is. Therefore, it is not necessary to form the folding top frame (3) troublesome awning frame of the chain type shown in Figure 8, such as dare conventional skeleton shape (1) of (3), hood sheet to the folding top frame (3) The welding (or adhesion) work efficiency required for attaching can be improved. Also, the hood frame
(3) is bent and three-dimensionalized into a hood structure (A),
The hood bone (3a), which is held by being loosely inserted between the inner and outer hood sheets (1) and (2), is not likely to come out of the polymer hood sheet. (7) indicated by a chain double-dashed line is a rainproof cloth that covers the upper side of the connecting hood and is stretched over the connecting end of the vehicle C.

In the state where the rectangular tubular hood structure (A) is used by being connected between vehicles, the inner and outer hood sheets (1) and (2) near the hood bone (3a) of the hood frame (3 ) are The multi-layer portion has significantly improved physical properties such as bending, compression, impact strength, and insulation properties such as soundproofing and heat insulation, as compared with the single-leaf structure. Moreover, since the inner hood sheet (2) is selected to have a thin composition, the weight can be reduced as much as possible. Further, the welding layer (4) or the adhesive layer (5) of the tensioned hood sheets (1) and (2) themselves is formed by covering the tape-shaped hood sheet (B ₂ ) on the hood bone (3) and at both side edges thereof. There is no need to make a step of the welding seam on the tension hood sheet as in the peripheral portion of the hood bone where (B ₂ ) is welded [see Fig. 8 (3)], and the tension hood sheet itself is formed. It is flexible without sacrificing its softness, and the adjacent hood bones are urged by the elastic property called "waist" at the fold forming part of the intermediate part.
As a result, the hood structure is maintained in a good shape because it shakes during running and resists deformation strain caused by deviation and resists long-term fatigue.

[Effect]

As described above, in the present invention, a parallel type hood frame that is developed in a flat plate shape is made to have an extremely simple structure in which it is held in the middle portion of the double-structured hood sheet consisting of the inner and outer hood sheets, Basically, the strength of the hood is increased, and the cushioning effect around the hood bone part is added, and the abrasion damage of the hood frame can be alleviated, so that the hood has a long-term durable structure. Further, in comparison with the proposed method, the dark image of the connecting portion can be changed to the bright color by changing the front and back color tones of the polymerized hood sheet.

Further, the welding (or bonding) work required for attaching the hood sheet to the hood frame of the hood structure can be performed easily and quickly without any special consideration, and the workability can be remarkably improved, and the manufacturing cost can be improved. Has the advantage that it can be significantly reduced. Further, as in the present embodiment, as a measure for preventing the hanging of the connected hood body, the chain type hood structure is provided with the flexibility to easily transform the hood formation mode, and the functional effect can be improved. It has a practical and beneficial effect in addition to the economic and labor measures.

[Brief description of drawings]

1 to 7 show an embodiment of the present invention, and FIG. 1 is a partially cutaway perspective view showing a developed state of a hood frame between double hood sheets,
FIG. 2 is a partially cutaway perspective view of the bottom of the hood floor in a state where the hood frame is attached to the double structure hood sheet, and FIG.
FIG. 4 is a plan sectional view of the hood showing the welded portion along the line X-X in FIG.
A reference diagram of a plane cross section in which a portion corresponding to the line XX in the figure is used as an adhesive layer,
FIG. 5 is a side view schematically showing a partially-notched hood structure body in which the hood frame is in a chain form, FIG. 6 is an enlarged side sectional view of a main part of a cutout portion of FIG. 5, and FIG. 7 is FIG. 8 is a horizontal sectional view taken along line YY of FIG.
(1) is a development view of a chain-type hood frame of a conventional example, FIG. 8 (2) is a rectangular tubular hood structure of a conventional example, FIG. 8 (3) is a partial view of a conventional hood sheet welded state, (1) ): Outer hood sheet, (2): inner hood sheet, (3) , (3 ') : hood frame, (3a), (3'a): hood bone, 4: welded part, 5: adhesive layer (A ): Hood structure, (B ₁ ): hood sheet, (B ₂ ): tape-shaped hood sheet, (B ₂ ′): side edge

Claims (2)

[Claims] 1. A plurality of hood bones of a hood frame are arranged in parallel on a hood sheet laid in a plane and integrally stretched on the hood sheet by welding, and then the hood frame is formed into a rectangular tubular shape. In the connected hood body formed, when the hood frame is three-dimensionally formed, each hood bone of the hood frame is flatly developed and placed on a hood sheet in a predetermined array frame, and the entire hood frame is covered. As described above, the separate hood sheets are stacked and the hood frame is placed between the hood sheets, and the upper and lower hood sheet mutual parts are integrally polymerized by welding through the hood frame to play the hood frame. A method for manufacturing a connecting hood for a vehicle, comprising a double structure of a hood sheet which is sandwiched and held in an inserted state, and thereafter, the hood frame is bent to form a rectangular tube shape. . 2. When placing each hood bone of the hood frame on the hood sheet, an adhesive is applied in advance on the hood sheet, and a predetermined hood frame is placed on the coated surface. At the same time, another hood sheet that covers the entire hood frame is overlaid, and both hood sheets are integrally pressure-bonded to each other via the hood frame, and the hood frame is sandwiched and held in the middle portion of both hood sheets in a loosely inserted state. A method for manufacturing a connecting hood for a vehicle according to claim 1.