JP6941554B2 - Seat pads and methods for manufacturing seat pads. - Google Patents

Description

The present invention relates to a method for manufacturing a seat pad and a seat pad, and more particularly to a method for manufacturing a seat pad and a seat pad that can improve the accuracy of the sticking position of the sticking body with respect to the pad body.

A technique for attaching a functional attachment body to a pad body of a seat pad is known. For example, in Patent Document 1, an adhesive is applied to a sticker (slab pad) fitted in a concave fitting portion of a lower mold, and the upper mold to which the pad body is fixed is pressed to be attached to the pad body. The technique of sticking the body is described.

Japanese Unexamined Patent Publication No. 2006-020734 (for example, paragraphs 0015, 0016, FIG. 1)

However, in the above-mentioned conventional technique, the tolerance of the fixing position of the pad body with respect to the upper mold, the tolerance of the fixing position of the affixed body with respect to the lower mold, and the tolerance of the compression mechanism between the upper mold and the lower mold, respectively. There is a problem that the accuracy of the sticking position of the sticking body with respect to the pad body may be lowered due to the accumulation of tolerances.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a seat pad and a method for manufacturing the seat pad, which can improve the accuracy of the sticking position of the sticking body with respect to the pad body. It is said.

In order to achieve this object, the seat pad of the present invention includes a pad body made of foamed resin and a sticker that is attached to the surface of the pad body and has a different functionality from the pad body. A through hole or a concave first positioning portion extending in the thickness direction of the sticking body is formed on the sticking surface of the sticking body, and the surface of the pad body extends in the thickness direction of the pad body. A second positioning portion formed as a through hole is formed, and the second positioning portion is formed at a position where the second positioning portion communicates with the first positioning portion.

According to the seat pad according to claim 1, a through hole or a concave first positioning portion extending in the thickness direction of the sticking body is formed on the sticking surface of the sticking body, and the surface of the pad body is formed on the surface of the pad body. A second positioning portion formed as a through hole extending in the thickness direction is formed, and the second positioning portion is formed at a position communicating with the first positioning portion. Therefore, by providing a protrusion that can be fitted into the first positioning portion and the second positioning portion on the fixing base (the one that fixes the pad body when the sticking body is attached), the second positioning portion can be fitted into the protrusion. The pad body can be fixed to the fixing base. Further, by fitting the first positioning portion into the protrusion protruding from the second positioning portion, the attachment body can be positioned with respect to the pad body. That is, since both the fixing position of the pad body with respect to the fixing base and the sticking position of the sticking body with respect to the pad body can be positioned with reference to the protrusion of the fixing base, it is caused by the tolerance of the fixing position and the sticking position. It is possible to reduce the misalignment of the sticker. Therefore, there is an effect that the accuracy of the sticking position of the sticking body with respect to the pad body can be improved.

The "projection that can be fitted into the first positioning portion and the second positioning portion" is "a protrusion that can be fitted into the first positioning portion and the second positioning portion" and is formed at a position that can be fitted into the first positioning portion and the second positioning portion. It is a protrusion that extends toward the pad body with a dimension that protrudes from.

According to the seat pad according to claim 2, a through hole or a concave first positioning portion extending in the thickness direction of the pad body is formed on either the surface of the pad body or the sticking surface of the sticker. On the other hand, since a convex second positioning portion into which the first positioning portion can be fitted is formed, the attachment body can be positioned with respect to the pad body by fitting the first positioning portion into the second positioning portion. can. That is, since the sticking body can be positioned by the direct engagement between the first positioning portion and the second positioning portion, there is an effect that the accuracy of the sticking position of the sticking body with respect to the pad body can be improved.

Further, since the first positioning portion is fitted into the second positioning portion, the misalignment of the sticking body with respect to the pad body can be regulated by the engagement of the first positioning portion and the second positioning portion. As a result, even if a load is applied to the sticking body when the seat pad is used, there is an effect that the sticking body can be prevented from being displaced with respect to the pad body.

Further, by configuring the first positioning portion and the second positioning portion as irregularities to be fitted to each other, the functionality of the pad body and the sticking body can be improved as compared with the case where the first positioning portion and the second positioning portion are configured as through holes. It has the effect of being able to be secured.

According to the seat pad according to claim 3, which is subordinate to claim 1, in addition to the effect of the seat pad according to claim 1, the first positioning portion and the second positioning portion are provided in the area where one sticker is attached. Since two or more positioning portions are formed, the fixing base is provided with a number of protrusions corresponding to the number of first positioning portions (second positioning portions) on the fixing base, and the second positioning portion is fitted into the protrusions. The rotation of the pad body with respect to the relative can be regulated by two or more protrusions. Further, by fitting the first positioning portion into the protrusion protruding from the second positioning portion, the rotation of the sticking body with respect to the pad body can be regulated by two or more protrusions. That is, when the sticker is attached to the pad body, it is possible to prevent the pad body from rotating with respect to the fixing base and the sticker from rotating with respect to the pad body, so that the sticker can be attached to the pad body. There is an effect that the accuracy of the position can be further improved.

According to the seat pad according to claim 3, which is subordinate to claim 2, in addition to the effect of the seat pad according to claim 2, the first positioning portion and the second positioning portion and the second positioning are performed in the area where one sticker is attached. Since two or more portions are formed, the rotation of the affixed body with respect to the pad body can be regulated by two or more first positioning portions and second positioning portions. As a result, it is possible to prevent the sticker from rotating with respect to the pad body when the sticker is stuck to the pad body, so that the accuracy of the sticking position of the sticker to the pad body can be further improved. be. Further, since two or more first positioning portions and two or more second positioning portions are formed, it is more effective that the affixed body is displaced with respect to the pad body even if a load is applied to the affixed body when the seat pad is used. It has the effect of being able to suppress it.

According to the seat pad according to claim 4, in addition to the effect of the seat pad according to claim 3, the following effects are exhibited. A plurality of the affixed bodies are attached to the pad body, and the arrangement interval between the first positioning portions in the area where one affixed body is attached and the first positioning portions in the area where the other affixed bodies are attached. Is set to a different dimension from the placement interval of. As a result, even if an attempt is made to attach another attachment body to the attachment area of one attachment body in the pad body, the first positioning portion can be fitted into the protrusion protruding from the second positioning portion, or the first positioning portion can be attached. Is unable to engage with the second positioning portion (the same applies when an attempt is made to attach one attachment body to the attachment area of another attachment body). Therefore, for example, when a plurality of sticking bodies having different shapes (contours) and functionality are stuck to the pad body, it is possible to prevent the sticking bodies from being stuck in a sticking area different from the desired sticking area. effective.

According to the seat pad according to claim 5, in addition to the effect of the seat pad according to any one of claims 1 to 4, the following effects are exhibited. The first positioning portion in the area where a plurality of the sticking bodies are stuck to the pad body and one sticking body is stuck, and the first positioning portion in the area where the other sticking body is stuck are the sticking bodies. The cross-sectional shapes on the plane orthogonal to the thickness direction of the above are formed to be different from each other. As a result, it is possible to prevent another sticking body from being stuck to the sticking area of one sticking body in the pad body (the same applies when trying to stick one sticking body to the sticking area of another sticking body). Is). Therefore, for example, when a plurality of sticking bodies having different shapes (contours) and functionality are stuck to the pad body, it is possible to prevent the sticking bodies from being stuck in a sticking area different from the desired sticking area. effective.

According to the seat pad according to claim 6, in addition to the effect of the seat pad according to any one of claims 1 to 5, the first positioning portion and the second positioning portion are formed in the area where the affix is attached. Since it is formed at the end on the outer edge side of the pad body, the first positioning portion and the second positioning portion formed of through holes and irregularities can be positioned on the outer edge side of the sticking area of the sticking body. This has the effect of ensuring the functionality of the pad body and the sticker on the center side of the seat pad (the sticker area of the sticker).

According to the seat pad according to claim 7, in addition to the effect of the seat pad according to claim 2, the following effects are exhibited. Since the second positioning portion is formed convexly on the surface of the pad body formed of the curved surface and extends in the direction of the ridgeline of the curved surface of the pad body, the second positioning portion is formed along the ridgeline direction of the curved surface of the pad body. The positioning portion and the first positioning portion are engaged. In this case, since the first positioning portion is formed in a concave shape on the sticking surface of the sticking body, the cross-sectional area of the sticking body in the region where the first positioning portion is formed is reduced, and the sticking body is curved in the vicinity of such a region. It can be made easier. As a result, even when the sticking body is stuck on the curved surface of the pad body, there is an effect that the sticking body can be stuck to the pad body in close contact with the sticking body.

According to the method for manufacturing a seat pad according to claim 8, in the preparation step, a through hole extending in the thickness direction of the sticking body or a concave first positioning portion is formed on the sticking surface of the sticking body, and a predetermined shape is formed on the surface of the pad body. When the sticking body is stuck in the sticking area of the pad body, a second positioning portion formed as a through hole extending in the thickness direction of the pad main body is formed in the pad main body at a position communicating with the first positioning portion. The fixing base in the fixing step is formed at a position where it can be fitted into the first positioning portion and the second positioning portion, and is provided with a protrusion extending toward the pad body side in a dimension protruding from the second positioning portion in the fixed state of the pad body. .. In the fixing step, the pad body is fixed to the fixing base by fitting the second positioning portion into the protrusion, and in the pasting process, the pad body is stuck to the pad body by fitting the first positioning portion into the protrusion protruding from the second positioning portion. Since the body is positioned, the same effect as that of claim 1 is obtained.

According to the method for manufacturing a seat pad according to claim 9, in addition to the effect of the method for manufacturing a seat pad according to claim 8, in the preparatory step, two or more first positioning portions are formed on one sticking body. A second positioning portion is formed at a position corresponding to each of at least two or more first positioning portions, and a protrusion is formed at a position corresponding to each of the two or more first positioning portions on the fixing base in the fixing step. Therefore, the same effect as that of claim 3 which is subordinate to claim 1 is obtained.

According to the method for manufacturing a seat pad according to claim 10, in addition to the effect of the method for manufacturing a seat pad according to claim 9, in the preparatory step, the arrangement interval between the first positioning portions of one sticker and others The arrangement interval between the first positioning portions of the sticking body is set to a different dimension, and the fixing base in the fixing process includes the first positioning portion of one sticking body and the first positioning portion of the other sticking body. Since the protrusions are formed at the positions corresponding to each, the arrangement interval between the protrusions fitted in the first positioning portion of one affix and the arrangement interval between the protrusions fitted in the first positioning portion of the other affixed body Have different dimensions.

As a result, when both one sticker and the other sticker are stuck to the pad body in the sticking process, even if the other sticker is to be stuck to the sticking area of the one sticker in the pad body, the first sticker is attached. 2 It becomes impossible to fit the first positioning portion into the protrusion protruding from the positioning portion (the same applies when an attempt is made to attach one attachment body to the attachment area of another attachment body). Therefore, when a plurality of sticking bodies are stuck to the pad body, there is an effect that it is possible to prevent the sticking bodies from being stuck to a sticking area different from the desired sticking area.

According to the method for manufacturing a seat pad according to claim 11, in addition to the effect of the method for manufacturing a seat pad according to any one of claims 8 to 10, the following effects are obtained. In the preparatory step, the first positioning portion of one sticker and the first positioning portion of the other sticker are formed into different cross-sectional shapes on a plane orthogonal to the thickness direction of the sticker, and are fixed. Since the fixing base in 1 is formed with protrusions having a shape corresponding to each of the first positioning portion of one sticking body and the first positioning portion of the other sticking body, the first positioning portion of one sticking body is formed. The protrusions fitted into the sticker and the protrusions fitted into the first positioning portion of the other affixed body have different shapes.

As a result, when both one sticker and the other sticker are stuck to the pad body in the sticking step, it is possible to prevent the other sticker from being stuck to the sticking area of the one sticker in the pad body. (The same applies when one sticker is attached to the sticking area of another sticker on the pad body). Therefore, when a plurality of sticking bodies are stuck to the pad body, there is an effect that it is possible to prevent the sticking bodies from being stuck to a sticking area different from the desired sticking area.

According to the seat pad manufacturing method according to claim 12, in addition to the effect of the seat pad manufacturing method according to any one of claims 8 to 11, in the preparatory step, the first positioning portion and the second positioning portion are used. Since it is formed at the end of the pad body on the outer edge side in the area where the sticking body is stuck, the same effect as that of claim 6 which is dependent on claim 1 is obtained. Further, in the preparatory step, the first positioning portion and the second positioning portion are formed at the end portion on the outer edge side of the pad body in the area where the sticking body is stuck. When the second positioning portion of the pad body is fitted into the pad body, it becomes easy to grasp the positional relationship between the protrusion and the second positioning portion. As a result, the pad body can be easily fixed to the fixing base, which has the effect of improving workability in the fixing process.

It is a top view of the seat pad in the 1st Embodiment of this invention. (A) is a cross-sectional view of the seat pad taken along the line IIa-IIa of FIG. 1, and (b) is a cross-sectional view of the seat pad taken along the line IIb-IIb of FIG. It is a perspective view of a fixed base, a pad body and a sticking body. (A) is a perspective view showing a state in which the pad main body is fixed to the fixing base, and (b) is a perspective view showing a state in which the affixed body is attached to the pad main body from the state of (a). It is a top view of the seat pad in the 2nd Embodiment. It is a perspective view of a fixed base, a pad body and a sticking body. (A) is a top view of the seat pad in the third embodiment, and (b) is a partially enlarged cross-sectional view of the seat pad in line VIIb-VIIb of FIG. 7 (a). It is a perspective view of a fixed base, a pad body and a sticking body.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. First, the seat pad 1 in the first embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a top view of the seat pad 1 according to the first embodiment of the present invention. FIG. 2A is a cross-sectional view of the seat pad 1 on the line IIa-IIa of FIG. 1, and FIG. 2B is a cross-sectional view of the seat pad 1 on the line IIb-IIb of FIG. The arrows UD, LR, and FB in FIGS. 1 and 2 indicate the vertical direction (thickness direction), the width direction (horizontal direction), and the front-rear direction of the seat pad, respectively.

As shown in FIG. 1, the seat pad 1 is a cushion pad which is a base material of a seat cushion arranged under the buttocks of a seated person, and has a surface (not shown) of fabric, synthetic leather, leather or the like on the surface. It is installed.

The seat pad 1 includes a pad main body 2 that constitutes the main body portion thereof, and a plurality of (three in the present embodiment) sticking bodies 3 that are attached to the surface of the pad main body 2. The pad body 2 is a base material for a seat integrally formed of a foamed synthetic resin such as soft urethane foam, and has a front support portion 20 that supports the back side of the thigh of the seated person and a rear support portion 21 that supports the buttocks. And a side support portion 22 that supports the side portions of the thigh and buttocks.

Grooves 23 and 24 (grooves recessed in the surface of the pad body 2) for tension-fixing the skin (not shown) at the boundary between the front support portion 20, the rear support portion 21, and the side support portion 22. ) Is formed. The groove portions 23 are extended along the front-rear direction (arrow FB direction) of the seat pad 1 and are arranged in pairs in the width direction of the seat pad 1 (arrow LR direction) at predetermined intervals. The pair of groove portions 23 are connected to each other by the groove portions 24 in the width direction of the seat pad 1.

Of the portions taken in by the pair of groove portions 23 and the groove portions 24, the portion located at the front portion of the seat pad 1 is the front support portion 20, and the portion located at the rear portion is the rear support portion 21, from the pair of groove portions 23. The side support portion 22 is located on the outer side of the seat pad 1 in the width direction.

The sticking body 3 is attached to each of the front support portion 20 and the rear support portion 21. That is, the surfaces of the front support portion 20 and the rear support portion 21 are the sticking regions of the sticking body 3, and the sticking regions are partitioned by the grooves 23 and 24.

The sticking body 3 is a rectangular parallelepiped (flat plate) slab pad cut out from a block-shaped molded body obtained by continuously foam-molding a foamed synthetic resin such as soft urethane foam, and is formed to be softer than the pad body 2. NS. In the following description, among the sticking bodies 3, the sticking body 3 to be stuck to the rear support portion 21 is the first sticking body 30, and the sticking body 3 to be stuck to the front support portion 20 in a pair in the width direction is the second sticking body 31 and the sticking body 3. The third affixed body 32 will be defined and described.

The dimension of the first sticking body 30 in the width direction (arrow LR direction) is longer than that of the second sticking body 31 (third sticking body 32), and the dimension in the front-rear direction (arrow FB direction) is It is formed shorter than the second sticker 31 (third sticker 32). That is, in the top view of the seat pad 1, the contour of the first sticking body 30 is formed in a shape different from that of the second sticking body 31 and the third sticking body 32 (thicknesses of the first to third sticking bodies 30 to 32). The dimensions in each direction are the same). The first sticking body 30 includes a through hole 30a formed on the rear side (arrow B side) of the center in the front-rear direction. The through hole 30a is configured as a through hole having a rectangular cross section extending in the thickness direction (arrow UD direction) of the first sticking body 30.

The dimensions of the second sticking body 31 in the width direction and the front-rear direction are the same as those of the third sticking body 32, and the contours of the second sticking body 31 and the third sticking body 32 are the same in the top view of the seat pad 1. Formed into a shape. The second sticking body 31 and the third sticking body 32 include a through hole 31a and a through hole 32a formed at positions eccentric to the center side in the width direction of the seat pad 1 with respect to the center in the width direction. The through hole 31a and the through hole 32a are configured as a through hole having a circular cross section extending in the thickness direction (arrow UD direction) of the second sticking body 31 and the third sticking body 32, and the diameters of the through hole 31a and the through hole 32a. Are set to the same value.

As shown in FIG. 2A, a through hole 25a extending in the thickness direction (arrow UD direction) of the pad body 2 is formed at a position corresponding to the through hole 30a in the pad body 2. The through hole 25a is configured as a through hole having a rectangular cross section having the same cross-sectional area as the through hole 30a and communicating with the through hole 30a.

The through hole 25a and the through hole 30a are configured as through holes for passing the wiring of the seating sensor (not shown). That is, the through hole 25a and the through hole 30a are arranged with other components arranged on the vehicle seat (seat pad 1) in addition to the function of fitting the protrusion 13 (see FIG. 3) of the fixing base 10 described later. Also serves as a function for setting. As a result, the number of through holes formed in the pad body 2 can be reduced as compared with a configuration in which a through hole for fitting the protrusion 13 (see FIG. 3) of the fixing base 10 is separately provided. Functionality (for example, cushioning) can be ensured.

As shown in FIG. 2B, through holes 25b and 25c extending in the thickness direction of the pad body 2 are formed at positions corresponding to the through holes 31a and the through holes 32a in the pad body 2. The through holes 25b and 25c communicate with the through holes 31a and 32a and are configured as through holes having the same diameter as the through holes 31a and 32a and having a circular cross section.

The through holes 25b and 25c are formed in the thinnest portion of the pad body 2. As a result, even when the through holes 25b and 25c are formed in the pad body 2, it is possible to suppress the deterioration of the cushioning property of the pad body 2.

On the outside of the seat pad 1 in the width direction (the end on the arrow L side) from the center of the second sticking body 31 in the width direction, a recess 31b having a trapezoidal cross section is recessed in a direction away from the surface of the pad body 2. It has a trapezoidal cross-section that is formed and recessed on the outside of the seat pad 1 in the width direction (the end on the arrow R side) from the center in the width direction of the third attachment body 32 in a direction away from the surface of the pad body 2. The recess 32b is formed.

On the surface of the pad body 2 (front support portion 20) at positions corresponding to the recesses 31b and the recesses 32b, convex portions 26a and 26b are formed so as to project in a trapezoidal cross section toward the recesses 31b and the recesses 32b. NS.

The engagement of the convex portion 26a and the concave portion 31b and the engagement of the convex portion 26b and the concave portion 32b regulate the relative displacement of the second sticking body 31 and the third sticking body 32 with respect to the pad body 2 in the width direction. As a result, even if a load is applied to the second sticking body 31 and the third sticking body 32 when the seat pad 1 is used (for example, when the occupant is seated), the second sticking body 31 and the third sticking body 31 and the third sticking body 32 are applied to the pad body 2. It is possible to prevent the sticking body 32 from being displaced in the width direction.

Further, the convex portions 26a and 26b are outside the width direction of the seat pad 1 from the center in the width direction of the second sticking body 31 and the third sticking body 32 (the sticking areas of the second sticking body 31 and the third sticking body 32, respectively). Since it is formed at the outer edge side end portion), deterioration of the sitting feeling due to the formation of the convex portions 26a and 26b can be suppressed.

Here, in order to regulate the relative displacement of the second sticking body 31 and the third sticking body 32 with respect to the pad body 2 in the width direction, for example, the convex portions 26a and 26b and the concave portions 31b and 32b are circular in cross section (for example, a circle). It is possible to adopt a configuration that is formed as a dent or protrusion (columnar or spherical). However, in such a configuration, it is not possible to regulate the relative displacement of the second sticking body 31 and the third sticking body 32 with respect to the pad main body 2.

On the other hand, in the present embodiment, the convex portions 26a and 26b and the concave portions 31b and 32b are extended in the front-rear direction (arrow FB direction) of the seat pad 1 (see FIG. 3), so that the convex portions 26a The rotation of the second sticking body 31 and the third sticking body 32 with respect to the pad main body 2 can be regulated by the engagement of the concave portion 31b and the convex portion 26b and the concave portion 32b.

Further, a pair of convex portions 26a and 26b are arranged in the attachment regions of the second attachment body 31 and the third attachment body 32, respectively, at predetermined intervals in the front-rear direction of the seat pad 1. As a result, the pad body 2 (front support portion 20) can be easily deformed at the divided portions of the convex portions 26a and 26b. Therefore, the cushioning property of the pad body 2 (front support portion 20) can be ensured as compared with the case where the convex portions 26a and 26b are continuously extended in the front-rear direction.

Next, a method of manufacturing the seat pad 1 will be described with reference to FIGS. 3 and 4. FIG. 3 is a perspective view of the fixing base 10, the pad body 2, and the sticking body 3. FIG. 4A is a perspective view showing a state in which the pad main body 2 is fixed to the fixing base 10, and FIG. 4B is a sticking body 3 attached to the pad main body 2 from the state of FIG. 4A. It is a perspective view which shows the state.

In the manufacture of the seat pad 1, a preparatory step for preparing the pad main body 2 and the sticking body 3, a fixing step for fixing the pad main body 2 prepared by the preparatory step to the fixing base 10, and a fixing step for fixing the pad main body 10 to the fixing base 10. The sticking step of sticking the sticking body 3 to the surface of the fixed pad body 2 is performed in order.

As shown in FIG. 3, the preparatory step is a step of forming the pad main body 2 and the sticking body 3 with the above-described configurations. As a method for forming the pad body 2 and the sticking body 3 (slab pad), a known method can be adopted, and thus the description thereof will be omitted.

The fixing step is a step of fixing the pad body 2 to the fixing base 10. The fixing base 10 is formed from a fixing surface 11 formed in a shape along the back surface of the pad body 2, a frame portion 12 that surrounds the fixing surface 11 and is substantially rectangular in top view (arrow D direction view), and the fixing surface 11. A plurality of (three in this embodiment) protrusions 13, 14, and 15 extending upward (in the direction of arrow U) are provided.

In the present embodiment, in the fixed state to the fixing base 10, the fixed surface 11 (frame portion 12) is formed with a dimension in which a part of the pad main body 2 protrudes from the frame portion 12 (see FIG. 4), but the pad main body 2 The fixed surface 11 (frame portion 12) may be formed with dimensions that fit the entire frame.

The protrusion 13 is formed to have a rectangular cross section, and the cross-sectional shape thereof is formed to have substantially the same shape as the through hole 25a and the through hole 30a (see FIG. 3). The protrusion 13 is formed at a position where it can be fitted into the through hole 25a and the through hole 30a when the pad body 2 is fixed to the fixing base 10.

The protrusions 14 and 15 are formed in a columnar shape, and their diameters are set to substantially the same values as the through holes 25b and 25c and the through holes 31a and 32a. When the pad body 2 is fixed to the fixing base 10, the protrusion 14 is formed at a position where it can be fitted into the through hole 25b and the through hole 31a, and the protrusion 15 is formed at a position where it can be fitted into the through hole 25c and the through hole 32a. ..

As shown in FIG. 4, in the fixing step, the protrusions 13, 14 and 15 of the fixing base 10 are fitted into the through holes 25a, 25b and 25c of the pad body 2. As a result, the relative displacement of the pad body 2 with respect to the fixing base 10 is regulated by the protrusions 13, 14 and 15, and the pad body 2 is fixed to the fixing base 10. In particular, in the present embodiment, since the two or more protrusions 13, 14, and 15 are fitted into the pad body 2, it is possible to restrict the rotation of the pad body 2 with respect to the fixing base 10.

In the fixed state of the pad body 2 to the fixing base 10, the protrusions 13, 14 and 15 are formed with dimensions protruding from the through holes 25a, 25b and 25c (see FIG. 3), and are formed in the sticking region of the sticking body 3. The protrusions 13, 14 and 15 project from the surface of the pad body 2.

In the sticking step, an adhesive is applied to the surface of the pad body 2 and / or the sticking surface of the sticking body 3, and the sticking surface of the sticking body 3 is stuck to the surface of the pad body 2. At this time, since the protrusions 13, 14 and 15 protrude from the surface of the pad body 2 (see FIG. 4A), the through holes 30a, 31a and 32a can be fitted into the protrusions 13, 14 and 15. The sticking body 3 can be positioned with respect to the pad body 2.

That is, since both the fixing position of the pad body 2 with respect to the fixing base 10 and the sticking position of the sticking body 3 with respect to the pad body 2 can be positioned with reference to the protrusions 13, 14 and 15, such fixing position and sticking can be performed. It is possible to reduce the misalignment of the sticking body 3 due to the tolerance of the sticking position. Therefore, the accuracy of the sticking position of the sticking body 3 with respect to the pad body 2 can be improved.

In this case, since the protrusion 13 into which the first sticking body 30 is fitted and the protrusions 14 and 15 into which the second sticking body 31 and the third sticking body 32 are fitted are formed in different cross-sectional shapes, the first sticking body 30 is formed. Can be suppressed from being stuck to the sticking area of the second sticking body 31 and the third sticking body 32.

That is, since the cross-sectional areas of the protrusions 14 and 15 are set smaller than those of the protrusions 13, it is possible to insert the protrusions 14 and 15 into the through holes 30a of the first sticking body 30. However, even if the operator tries to insert the protrusions 14 and 15 into the through hole 30a of the first sticking body 30, the second sticking body is made to recognize that the protrusions 14 and 15 have a different shape from the through hole 30a. It is possible to prevent the first sticking body 30 from being accidentally stuck to the sticking area of the 31 or the third sticking body 32.

On the other hand, since the cross-sectional areas of the protrusions 14 and 15 are set smaller than those of the protrusions 13, it is impossible to fit the protrusions 13 into the through holes 31a and 32a of the second sticker 31 and the third sticker 32. Therefore, it is possible to reliably prevent the second sticking body 31 and the third sticking body 32 from being accidentally stuck to the sticking area of the first sticking body 30.

Further, the through hole 30a is formed at a position eccentric from the center in the width direction of the first sticking body 30 and at a position eccentric from the center in the front-rear direction of the first sticking body 30. As a result, the through hole 30a will be fitted into the protrusion 13 with the surface (upper surface on the arrow U side) opposite to the attachment surface (lower surface on the arrow D side) of the first attachment body 30 facing the pad body 2. Then, the first sticking body 30 is configured to protrude from the rear support portion 21 (inside the sticking area).

Similarly, the through hole 31a (through hole 32a) is also at a position eccentric from the center in the width direction of the second sticking body 31 (third sticking body 32), and the second sticking body 31 (third sticking body 32). It is formed at a position eccentric from the center in the anteroposterior direction. As a result, the through hole 31a is in a state where the surface (upper surface on the arrow U side) opposite to the attachment surface (lower surface on the arrow D side) of the second attachment body 31 (third attachment body 32) is directed to the pad body 2. When trying to fit the (through hole 32a) into the protrusion 14 (protrusion 15), the second sticking body 31 (third sticking body 32) protrudes from the front support portion 20 (inside the sticking area), or the protrusion 14 It is configured to interfere with (projection 15).

As a result, when the operator tries to attach the first attachment body 30, the second attachment body 31, and the third attachment body 32 to the pad body 2 with the front and back sides reversed, the operator protrudes from the desired attachment area. It is possible to make the worker recognize that. Therefore, it is possible to prevent the pad body 2 from being stuck on a surface different from the desired sticking surface of the first sticking body 30, the second sticking body 31, and the third sticking body 32.

Further, since the protrusion 13 has a rectangular cross-sectional shape, the rotation of the first sticking body 30 with respect to the pad body 2 can be regulated by one protrusion 13. Therefore, it is not necessary to form a plurality of through holes in the sticking region of the first sticking body 30. As a result, when fixing the pad body 2 to the fixing base 10 or positioning the first attachment body 30 to the pad body 2, it is only necessary to fit the through hole 25a or the through hole 30a into one protrusion 13. , Workability in the fixing process and the pasting process can be improved.

In this case, for example, if the through hole 31a of the second sticking body 31, the through hole 32a of the third sticking body 32, and the protrusions 14 and 15 are formed into rectangular cross sections, the second sticking body 14 and 15 form the second through hole 31a. The rotation of the sticking body 31 and the third sticking body 32 can be regulated. However, in order to reliably regulate the rotation of the second sticking body 31 and the third sticking body 32 by one protrusions 14 and 15, the cross-sectional area of the protrusions 14 must be formed to be relatively large.

On the other hand, in addition to the protrusions 14 and 15, new protrusions are fitted into the second sticking body 31 and the third sticking body 32, and the rotation of the second sticking body 31 and the third sticking body 32 is restricted by two or more protrusions. With the configuration, the rotation of the second sticking body 31 and the third sticking body 32 can be more reliably regulated. However, in such a configuration, it is necessary to form new through holes in the pad body 2 in addition to the through holes 25b and 25c (see FIG. 3), which may deteriorate the seating feeling of the pad body 2.

On the other hand, in the present embodiment, recesses 31b and 32b are formed in the second sticking body 31 and the third sticking body 32, and the convex portions 26a and 26b are engaged with the recesses 31b and 32b. As a result, the second sticker 31 and the third sticker 32 are engaged by the engagement of the protrusions 14, 15 and the through holes 31a, 32a and the engagement of the protrusions 26a, 26b and the recesses 31b, 32b. Rotation can be regulated. Therefore, it is not necessary to form a new through hole in the pad body 2 in addition to the through holes 25b and 25c, so that the second sticking body 31 and the second sticking body 31 and the second sticking body 31 can be suppressed while suppressing the deterioration of the seating feeling of the pad body 2. 3 The rotation of the sticking body 32 can be regulated.

In this case, the convex portions 26a and 26b and the concave portions 31b and 32b are extended in the front-rear direction of the pad main body 2 (the second sticking body 31 and the third sticking body 32), so that the protrusions 14 and 15 and the through holes 31a, Even if the engagement of the 32a is omitted, it is possible to regulate the rotation of the second sticking body 31 and the third sticking body 32 only by engaging the convex portions 26a and 26b and the concave portions 31b and 32b. However, the engaged state (relative position) of the convex portions 26a, 26b and the concave portions 31b, 32b becomes difficult to visually recognize when the second sticking body 31 and the third sticking body 32 are stuck, so that the protrusions 14, In the case of the configuration in which the engagement of the 15 and the through holes 31a and 32a is omitted, the engagement positions of the recesses 31b and 32b with respect to the convex portions 26a and 26b are likely to be displaced.

On the other hand, in the present embodiment, the outer edges of the second sticking body 31 and the third sticking body 32 are stuck along the grooves 23 and 24 while fitting the through holes 31a and 32a into the protrusions 14 and 15. Since the second sticking body 31 and the third sticking body 32 are positioned at desired sticking positions, the accuracy of the engaging positions of the recesses 31b and 32b with respect to the convex portions 26a and 26b can be improved. That is, by combining the engagement of the protrusions 14 and 15 and the through holes 31a and 32a with the engagement of the convex portions 26a and 26b and the concave portions 31b and 32b, the number of through holes formed in the pad body 2 is reduced as much as possible while reducing the number of through holes. It is possible to improve the accuracy of the sticking positions of the second sticking body 31 and the third sticking body 32 with respect to the pad body 2.

Further, in a state where the first sticking body 30, the second sticking body 31 and the third sticking body 32 are stuck to the pad main body 2, the dimensions of the protrusions 13, 14 and 15 so as to protrude from the through holes 30a, 31a and 32a. Is set. As a result, whether or not the protrusions 13, 14 and 15 are securely inserted into the through holes 30a, 31a and 32a (the first sticking body 30, the second sticking body 31 and the third sticking body 32 are at the desired sticking positions. Whether or not it is positioned in) can be easily determined.

In the present embodiment, the crimping after the first sticking body 30, the second sticking body 31 and the third sticking body 32 are stuck to the pad main body 2 is performed manually. In this case, the protrusion 13 is fitted to the rear end side of the first sticking body 30, and the protrusions 14 and 15 are fitted to the ends of the second sticking body 31 and the third sticking body 32 on the center side in the width direction (that is, the protrusions). Since 13, 14 and 15 are fitted to the outer edge side eccentric from the center of the first sticking body 30, the second sticking body 31 and the third sticking body 32), the first sticking body 30, the second sticking body 31 and the third sticking body 32 are fitted. It is possible to prevent the protrusions 13, 14 and 15 from interfering with the operator during the crimping operation of the sticking body 32. As a result, the centers of the first sticking body 30, the second sticking body 31 and the third sticking body 32 can be pressed and crimped, so that the first sticking body 30, the second sticking body 31 and the third sticking body 32 can be pressed against the pad body 2. Can be easily brought into close contact with each other.

Next, a second embodiment will be described with reference to FIGS. 5 and 6. In the first embodiment, the case where one protrusions 14 and 15 are fitted into the second sticking body 31 and the third sticking body 32, respectively, has been described, but in the second embodiment, the second sticking body 231 and the third sticking body 231 and the third sticking body are attached. A case where two protrusions 14, 216 and protrusions 15, 217 are fitted into the body 232, respectively, will be described. The same parts as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 5 is a top view of the seat pad 201 according to the second embodiment. FIG. 6 is a perspective view of the fixing base 210, the pad main body 202, and the sticking body 203.

As shown in FIG. 5, the seat pad 201 includes a pad main body 202 that constitutes the main body portion thereof, and a plurality of (three in the present embodiment) sticking bodies 203 that are attached to the surface of the pad main body 202. ..

The first sticking body 230 includes a through hole 230a formed on the rear side (arrow B side) of the center in the front-rear direction. The through hole 230a is configured as a through hole having an elliptical cross section extending in the thickness direction (arrow UD direction) of the first sticking body 230.

The second sticking body 231 includes a through hole 231c formed on the outside of the seat pad 201 in the width direction (the end on the L side of the arrow) with respect to the center in the width direction. The through hole 231c is configured as a through hole having a circular cross section extending in the thickness direction (arrow UD direction) of the second sticking body 231, and the diameter of the through hole 231c is set to the same value as the diameter of the through hole 31a. ..

The third sticking body 232 includes a through hole 232c formed in the center in the width direction thereof. The through hole 232c is configured as a through hole having a circular cross section extending in the thickness direction (arrow UD direction) of the third sticking body 232, and the diameter of the through hole 232c is set to the same value as the diameter of the through hole 32a. ..

As shown in FIG. 6, a through hole 225a extending in the thickness direction of the pad main body 202 is formed at a position corresponding to the through hole 230a in the pad main body 202. The through hole 225a communicates with the through hole 230a and is configured as a through hole having an elliptical cross section having the same cross-sectional area as the through hole 230a.

Through holes 225d and 225e extending in the thickness direction of the pad body 202 are formed at positions corresponding to the through holes 231c and the through holes 232c in the pad body 202, respectively. The through holes 225d and 225e communicate with the through holes 231c and 232c and are configured as through holes having the same diameter as the through holes 231c and 232c and having a circular cross section.

Next, a method of manufacturing the seat pad 201 will be described. In the manufacture of the seat pad 201, a preparatory step for preparing the pad main body 202 and the sticking body 203, a fixing step for fixing the pad main body 202 prepared in the preparatory step to the fixing base 210, and a fixing step for fixing the pad main body 202 to the fixing base 210 are performed. The sticking step of sticking the sticking body 203 on the surface of the fixed pad main body 202 is performed in order. The preparatory step is a step of forming the pad main body 202 and the sticking body 203, respectively, with the above-described configurations.

The fixing step is a step of fixing the pad main body 202 to the fixing base 210. The fixing base 210 includes protrusions 213, 216, and 217 extending upward from the fixing surface 11. The protrusion 213 is formed to have an elliptical cross section, and the cross-sectional shape thereof is formed to be substantially the same as the through hole 225a and the through hole 230a. Further, the protrusion 213 is formed at a position where it can be fitted into the through hole 225a and the through hole 230a when the pad main body 202 is fixed to the fixing base 210.

The protrusions 216 and 217 are formed in a columnar shape, and their diameters are set to substantially the same values as the through holes 225d and 225e and the through holes 231c and 232c. Further, when the pad main body 202 is fixed to the fixing base 210, the protrusion 216 is formed at a position where it can be fitted into the through holes 225d and 231c, and the protrusion 217 is formed at a position where it can be fitted into the through holes 225e and 232c.

In the fixing step, the through holes 225a, 25b, 25c, 225d, and 225e of the pad body 202 are fitted into the protrusions 213, 14, 15, 216, and 217 of the fixing base 210, respectively. As a result, the relative displacement of the pad body 202 with respect to the fixing base 210 is regulated by the protrusions 213, 14, 15, 216, 217, and the pad body 202 is fixed to the fixing base 210. The protrusions 213, 216, and 217 are formed with dimensions protruding from the through holes 225a, 225d, and 225e when the pad body 202 is fixed to the fixing base 210.

In the sticking step, an adhesive is applied to the surface of the pad body 202 and / or the sticking surface of the sticking body 203, and the sticking surface of the sticking body 203 is stuck to the surface of the pad body 202. At this time, since the protrusions 213, 14, 15, 216 and 217 protrude from the through holes 225a, 25b, 25c, 225d and 225e, the through holes 230a, 31a and 231c are formed in the protrusions 213, 14, 15, 216 and 217. , 32a, 232c can be fitted to position the sticking body 203 with respect to the pad body 202. Thereby, as in the first embodiment, the accuracy of the sticking position of the sticking body 3 with respect to the pad main body 202 can be improved.

In this case, since the protrusion 213 is formed in an elliptical cross section, the rotation of the first sticking body 230 with respect to the pad body 202 can be regulated by one protrusion 213.

Further, since the two protrusions 14, 216 (protrusions 15, 217) are fitted into the second sticking body 231 (third sticking body 232), the second sticking body 231 (third sticking body 232) with respect to the pad body 202 The rotation of the can be regulated by two protrusions 14, 216 (protrusions 15, 217). Therefore, it is possible to suppress the rotation of the second sticking body 231 (third sticking body 232) on the pad body 202, so that the accuracy of the sticking position of the second sticking body 231 (third sticking body 232) with respect to the pad body 202 can be improved. Can be improved.

Further, since the arrangement interval between the protrusions 14 and 216 fitted in the second sticking body 231 and the arrangement interval between the protrusions 15 and the protrusions 217 fitted in the third sticking body 232 are different, the third sticking body 232 is attached. Even if an attempt is made to attach the second attachment body 231 to the attachment area, it becomes impossible to fit the second attachment body 231 into the protrusions 15 and 217 (the third attachment body 232 is attached to the attachment area of the second attachment body 231). The same applies when trying to paste). Therefore, it is possible to prevent the second sticking body 231 and the third sticking body 232 from being stuck in a sticking area different from the desired sticking area.

Here, for example, even in a configuration in which the diameter (cross-sectional area) of the protrusion fitted into the second sticking body 231 and the protrusion fitted into the third sticking body 232 is set to a different value, the sticking area is different from the desired sticking area. It is possible to prevent the second sticking body 231 and the third sticking body 232 from being stuck to the sticking area. However, in such a configuration, the diameter (cross-sectional area) of either one of the protrusions fitted into the second sticking body 231 or the third sticking body 232 becomes large, so that the diameter (cross-sectional area) of the through hole for fitting the protrusions becomes large. ) Also needs to be increased. Therefore, the functionality of the pad body 202, the second sticker 231 or the third sticker 232 is reduced.

On the other hand, in the present embodiment, the arrangement intervals between the protrusions 14 and 216 and the arrangement intervals between the protrusions 15 and 217 are different, so that the diameters of the protrusions 14, 15, 216, and 217 are the same. However, it is possible to prevent the second sticking body 231 and the third sticking body 232 from being stuck in a sticking area different from the desired sticking area. As a result, all of the protrusions 14, 15, 216, and 217 can be composed of those having the same diameter (those with the smallest diameter possible), so that the functionality of the pad body 202, the second sticking body 231 or the third sticking body 232 is ensured. can.

Next, a third embodiment will be described with reference to FIGS. 7 and 8. In the first embodiment, the case where the convex portions 26a, 26b and the concave portions 31b, 32b are extended in the front-rear direction of the pad body 2 has been described, but in the third embodiment, the convex portions 326a, 326b and the concave portions 331b, 332b Will be described in the case where is extended in the width direction of the pad body 2. The same parts as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

7 (a) is a top view of the seat pad 301 in the third embodiment, and FIG. 7 (b) is a partially enlarged cross-sectional view of the seat pad 301 in line VIIb-VIIb of FIG. 7 (a). FIG. 8 is a perspective view of the fixing base 310, the pad main body 302, and the sticking body 303.

As shown in FIG. 7, the seat pad 301 includes a pad main body 302 that constitutes the main body portion thereof, and a plurality of (three in the present embodiment) sticking bodies 303 that are attached to the surface of the pad main body 302. ..

The first sticking body 330 includes a pair of through holes 330a and 330b formed at both ends in the diagonal direction thereof. The through holes 330a and 330b are configured as through holes having a circular cross section extending in the thickness direction (arrow UD direction) of the first sticking body 330.

The second sticking body 331 includes a through hole 331a formed on the outside of the seat pad 301 (the end on the arrow L side) with respect to the center in the width direction. The through hole 331a is configured as a through hole having a circular cross section extending in the thickness direction of the second sticking body 331.

The third sticking body 332 includes a through hole 332a formed on the outside of the seat pad 301 (the end on the R side of the arrow) with respect to the center in the width direction. The through hole 332a is configured as a through hole having a circular cross section extending in the thickness direction of the third sticking body 332, and the diameter of the through hole 332a is set to a value larger than the diameter of the through hole 331a.

As shown in FIG. 8, through holes 325a1 and 325a2 extending in the thickness direction of the pad main body 302 are formed at positions corresponding to the through holes 330a and 330b in the pad main body 302. The through holes 325a and 325a2 communicate with the through holes 330a and 330b, respectively, and are configured as through holes having the same diameter as the through holes 330a and 330b and having a circular cross section.

Through holes 325b and 325c extending in the thickness direction of the pad body 302 are formed at positions corresponding to the through holes 331a and 332a in the pad body 302, respectively. The through holes 325b and 325c communicate with the through holes 331a and 332a, respectively, and are configured as through holes having the same diameter as the through holes 332a (that is, larger than the through holes 331a) and having a circular cross section.

The ends of the second sticking body 331 and the third sticking body 332 on the front side of the center in the front-rear direction (the end on the arrow F side) are recessed in a trapezoidal cross section in a direction away from the surface of the pad body 302. The recesses 331b and 332b are formed. On the surface of the pad body 302 (front support portion 320) at positions corresponding to the recesses 331b and 332b, convex portions 326a and 326b are formed so as to project in a trapezoidal cross section toward the recesses 331b and 332b.

The surface of the front support portion 320 on the front end side is configured as an upwardly convex curved surface (see FIG. 7B), and the convex portion 326a, along the ridgeline direction (arrow LR direction) of the curved surface. 326b and concave portions 331b and 332b are extended (see FIG. 8 for the convex portion 326b and the concave portion 332b). In this case, since the recesses 331b and 332b are recessed in the second sticking body 331 and the third sticking body 332, the cross-sectional area of the second sticking body 331 and the third sticking body 332 in the region where the recesses 331b and 332b are formed. Decreases.

Therefore, it is possible to easily bend the second sticking body 331 and the third sticking body 332 in the vicinity of the forming regions of the recesses 331b and 332b, so that the second sticking body can be easily curved on the curved surface of the pad body 302 (front support portion 320). Even when the 331 and the third sticking body 332 are stuck, the second sticking body 331 and the third sticking body 332 can be stuck to the pad main body 302 in close contact with each other.

Next, a method of manufacturing the seat pad 301 will be described. In the manufacture of the seat pad 301, a preparatory step for preparing the pad main body 302 and the sticking body 303, a fixing step for fixing the pad main body 302 prepared by the preparatory step to the fixing base 310, and a fixing step for fixing the pad main body 302 to the fixing base 310 are performed. The sticking step of sticking the sticking body 303 on the surface of the fixed pad main body 302 is performed in order. The preparatory step is a step of forming the pad main body 302 and the sticking body 303 with the above-described configurations, respectively.

The fixing step is a step of fixing the pad main body 302 to the fixing base 310. The fixing base 310 includes protrusions 313a, 313b, 314, 315 extending upward from the fixing surface 11. The protrusions 313a and 313b are formed in a columnar shape, and their diameters are set to the same values as the through holes 325a1 and 325a2 and the through holes 330a and 330b. Further, the protrusion 313a (protrusion 313b) is formed at a position where it can be fitted into the through hole 325a1 (through hole 325a2) and the through hole 330a (through hole 330b) when the pad main body 302 is fixed to the fixing base 310.

The protrusion 314 is formed into a columnar large-diameter portion 314a fitted into the through hole 325b, a columnar portion having a smaller diameter than the large-diameter portion 314a, and a small-diameter portion 314b fitted into the through hole 331a, and these large-diameter portions. It includes a conical trapezoidal tapered portion 314c that connects the 314a and the small diameter portions 314b.

The large diameter portion 314a is set to have substantially the same diameter as the through hole 325b, and the small diameter portion 314b is set to have substantially the same diameter as the through hole 30a. When the pad body 302 is fixed to the fixing base 310, the protrusion 314 is formed at a position where it can be fitted into the through hole 325b.

The protrusion 315 is formed in a columnar shape, and its diameter is set to substantially the same value as the through hole 325c and the through hole 332a. When the pad body 302 is fixed to the fixing base 310, the protrusion 315 is formed at a position where it can be fitted into the through hole 325c and the through hole 331a.

In the fixing step, the through holes 325a1, 325a2, 325b, 325c of the pad body 2 are fitted into the protrusions 313a, 313b, 314, and 315 of the fixing base 210, respectively. As a result, the relative displacement of the pad main body 302 with respect to the fixed base 310 is regulated by the protrusions 313a, 313b, 314, 315, and the pad main body 302 is fixed to the fixed base 310.

In this case, the protrusion 314 is provided with a small diameter portion 314b having a diameter smaller than the diameter of the through hole 325b and a tapered portion 314c whose diameter gradually increases downward from the lower end of the small diameter portion 314b on the tip end side thereof. The small diameter portion 314b can be easily inserted into the hole 325b, and the tapered portion 314c slides into the opening (not shown) on the lower end side of the through hole 325b to guide the insertion of the large diameter portion 314a into the through hole 325b. NS. As a result, the large diameter portion 314a can be easily fitted into the through hole 325b, so that the workability of the work of fixing the pad body 302 to the fixing base 310 can be improved.

In the fixed state of the pad body 302 to the fixing base 310, the protrusions 313a, 313b, 314, 315 are formed with dimensions protruding from the through holes 325a1, 325a2, 325b, 325c (the tapered portion 314c of the protrusion 314 is formed. It is located inside the through hole 325b, and only the small diameter portion 314b protrudes from the through hole 325b).

In the sticking step, an adhesive is applied to the surface of the pad main body 302 and / or the sticking surface of the sticking body 303, and the sticking surface of the sticking body 303 is stuck to the surface of the pad main body 302. At this time, since the protrusions 313a, 313b, 314 and 315 protrude from the through holes 325a1, 325a2, 325b and 325c, the through holes 330a, 330b, 331a and 332a are fitted into the protrusions 313a, 313b, 314 and 315. Therefore, the sticking body 303 can be positioned with respect to the pad main body 302. Thereby, as in the first embodiment, the accuracy of the sticking position of the sticking body 303 with respect to the pad main body 302 can be improved.

In this case, since the protrusions 313a and 313b are fitted to both ends of the first attachment body 330 in the diagonal direction, the arrangement interval between the protrusions 313a and the protrusions 313b can be secured to the maximum. That is, by widening the distance between the protrusions 313a and 313b, the portion on the outer edge side of the first sticking body 330 can be accurately positioned, so that the sticking position of the first sticking body 330 with respect to the pad body 302 can be positioned. The accuracy can be improved.

Further, since the diameter of the small diameter portion 314b of the protrusion 314 fitted into the second sticking body 331 and the diameter of the protrusion 315 fitted into the third sticking body 332 are set to different values, the second sticking body 331 and the third sticking body 331 and the third sticking body 331 are set to different values. It is possible to prevent the sticking body 332 from sticking to a region different from the desired sticking region.

That is, since the diameter of the protrusion 315 is larger than that of the through hole 331a of the second sticking body 331, it becomes impossible to fit the second sticking body 331 into the protrusion 315. On the other hand, since the diameter of the small diameter portion 314b of the protrusion 314 is smaller than that of the through hole 332a of the third sticking body 332, it is possible to insert the small diameter portion 314b of the protrusion 314 through the through hole 332a of the third sticking body 332. However, by making the operator recognize that the diameters of the through hole 332a and the small diameter portion 314b of the protrusion 314 are different, it is possible to prevent the third sticking body 332 from being erroneously stuck to the sticking area of the second sticking body 331. can.

Further, since the protrusions 313a, 313b, 314 and 315 are fitted into the outer edge side ends of the first sticking body 330, the second sticking body 331 and the third sticking body 332, respectively, the through holes 330a, 330b, 331a and 332a are fitted. Can be provided at the ends of the first sticking body 330, the second sticking body 331, and the third sticking body 332 on the outer edge side (both end sides in the width direction or both end sides in the front-rear direction of the seat pad 301), respectively. Further, through holes 325a1, 325a2, 325b, 325c of the pad body 302 can also be provided on the outer edge side of the sticking body 3 in the sticking region. Further, the convex portions 326a and 326b and the concave portions 331b and 332b are also provided on the front end side of the pad body 302.

In this way, by providing the portion consisting of the through hole or the unevenness on the outer edge side of the sticking area of the sticking body 303, the pad near the center in the width direction and the front-back direction of the seat pad 301 (that is, the area where the seater sits). The cushioning property of the main body 2 and the functionality (soft sitting comfort) of the sticking body 3 can be ensured.

Although the present invention has been described above based on the above-described embodiment, the present invention is not limited to the above-described embodiment, and it is easy to make various modifications and improvements within a range that does not deviate from the gist of the present invention. It can be inferred.

A seat pad or a fixing base may be formed by combining a part or all of the seat pad in each of the above embodiments with a part or all of the seat pad or the fixing base in another embodiment. For example, the configuration corresponding to the convex portions 26a, 26b, 326a, 326b and the concave portions 31b, 32b, 331b, 332b of the first embodiment and the third embodiment can be applied to the seat pad 201 of the second embodiment. Of course, it is possible to apply the configuration corresponding to the protrusion 314 of the third embodiment to the fixing bases 10, 210 of the first embodiment and the second embodiment.

In each of the above embodiments, the case where the seat pads 1,201 and 301 are configured as cushion pads has been described, but the present invention is not necessarily limited to this. For example, the seat pads 1,201 and 301 may be composed of a back pad and an armrest pad (pad used for the armrest). That is, the technical idea of the present invention can be applied as long as it has a structure in which a sticking body having functionality is attached to a cushioning pad.

In each of the above embodiments, the case where the patches 3, 203 and 303 are slab pads made of foamed synthetic resin such as soft urethane foam has been described, but the present invention is not necessarily limited to this. For example, the sticking bodies 3, 203, 303 may be made of a rubber sponge, hard cotton, urethane rubber, or plastic.

In each of the above embodiments, the case where three sticking bodies 3, 203 and 303 (the first to third sticking bodies) are attached to the pad main bodies 2, 202 and 302 has been described, but the present invention is not necessarily limited to this. No. For example, one, two, or four or more sticking bodies 3, 203, 303 may be stuck to the pad bodies 2, 202, 302.

Further, unlike the second sticker 31,231,331 and the third sticker 32,232,332, a plurality of stickers are juxtaposed in the front-rear direction and the width direction. The technical idea of the present invention can also be applied to the configuration (for example, the first sticker, the second sticker, and the third sticker are arranged side by side in the front-rear direction).

In each of the above embodiments, the case where the sticking bodies 3, 203 and 303 are manually stuck to the surfaces of the pad bodies 2, 202 and 302 in the sticking step has been described, but the present invention is not necessarily limited to this. For example, the crimping of the sticking bodies 3, 203, 303 to the pad bodies 2, 202, 302 may be performed by a device including the fixing bases 10, 210, 310 (lower mold) and the upper mold. When crimping is performed with such an apparatus, for example, a crimping surface along the upper surfaces of the pad bodies 2, 202, 302 and the affixed bodies 3, 203, 303 is formed in an upper mold, and the frames of the fixing bases 10, 210, 310 are formed. The upper mold may be rotatably supported at the rear end (end on the arrow B side) of the portion 12, and the upper mold may be raised and lowered by an actuator.

In this case, the upper mold is provided with a recess through which the protrusions of the fixing bases 10, 210, and 310 can be inserted, or the protrusions are raised and lowered in conjunction with the raising and lowering of the upper mold to prevent the protrusions from interfering with the upper mold. can. As a means for raising and lowering the protrusion, for example, a configuration in which a recess into which the protrusion can be fitted is provided on the fixed surface 11 and the protrusion is supported by a spring or an actuator inside the recess is exemplified. If the configuration is supported by a spring, the crimping surface of the upper die abuts on the protrusion, so that the protrusion shortens toward the inside of the recess (against the urging force of the spring). In the case of a configuration supported by an actuator, if the actuator is expanded and contracted in conjunction with the raising and lowering of the upper mold, it is possible to prevent the protrusions from interfering with the upper mold.

In each of the above embodiments, the protrusions 13, 14, 15, 213, 216, 217, 313a, 313b, 314, 315 of the fixing bases 10, 210, 310 are attached to the pad bodies 2, 202, 302 by the sticking bodies 3, 203, 303. Although the case of positioning the above has been described, the present invention is not necessarily limited to this. For example, the protrusions 13, 14, 15, 213, 216, 217, 313a, 313b, 314, 315 of the fixing bases 10, 210, 310 are omitted, and the pad bodies 2, 202, 302 and the sticking bodies 3, 203, 303 are formed. Concavities and convexities formed (configurations corresponding to convex portions 26a, 26b, 326a, 326b and concave portions 31b, 32b, 331b, 332b) of the affixed bodies 3, 203, 303 to the pad bodies 2, 202, 302 only by engaging with each other. Positioning may be performed.

Further, a concave portion may be formed in the pad bodies 2, 202 and 302, and a convex portion may be formed in the affixed bodies 3, 203 and 303. In this case, since the cross-sectional area of the sticking bodies 3, 203, 303 can be increased, the functionality (soft sitting comfort) of the sticking bodies 3, 203, 303 can be improved.

Further, by providing a convex portion (a part thereof may be divided) surrounding the outer edges of the sticking bodies 3, 203, 303 on the surface of the pad main bodies 2, 202, 302, the sticking bodies 3, 203, 303 can be positioned. It may be configured to perform.

In each of the above embodiments, the dimensions of the second sticker 31,231,331 in the width direction and the front-rear direction are the same as those of the third sticker 32,232,332 (in the top view of the seat pads 1,201,301). The contours of the second sticker 31,231,331 and the third sticker 32,232,332 are formed in the same shape), the second sticker 31,231,331 and the third sticker 32,232,332 The case where they are formed of the same material (they have the same functionality such as cushioning and breathability) has been described, but the present invention is not necessarily limited to this. For example, the dimensions of the second sticker in the width direction and the front-rear direction are different from those of the third sticker (in the top view of the seat pad, the contours of the second sticker and the third sticker are formed into different shapes. The configuration may be such that the materials (functionality) of the second sticker and the third sticker are different from each other.

In the case of such a configuration, as in the second embodiment and the third embodiment, the arrangement interval between the plurality of through holes of the second attachment body and the arrangement interval between the plurality of through holes of the third attachment body are set. Set different dimensions, and make the shape of the through hole (protrusion of the fixing base) and recess (convex part of the pad body) of the second sticking body different from the through hole and recess of the third sticking body. Is preferable. As a result, it is possible to prevent the third sticking body, which has a different shape (contour) and functionality from the second sticking body, from being stuck to the sticking area of the second sticking body.

In each of the above embodiments, the case where the first positioning portion of the attachment body 3, 203, 303 is configured as the through holes 30a, 31a, 32a, 230a, 231c, 232c, 330a, 331a, 332a has been described, but this is not necessarily the case. It is not limited. The first positioning portion of the sticking bodies 3, 203, 303 may be configured as a recess (one into which the protrusion of the fixing base can be fitted) recessed in the sticking surface of the sticking bodies 3, 203, 303.

In each of the above embodiments, through holes 30a, 31a, 32a, 230a, 231c, 232c, 330a, 330b, 331a, 332a, through holes 25a, 25b, 25c, 225a, 225d, 225e, 325a1,325a2, 325b, 325c, And the case where the cross-sectional shape of the protrusions 13, 14, 15, 213, 216, 217, 313a, 313b, 314, 315 is rectangular, circular, or elliptical has been described, but the present invention is not limited to this. For example, the cross-sectional shape of the through hole or the protrusion may be formed from a polygon other than a rectangle, or a shape combining straight lines and curves. That is, the cross-sectional shape is not limited as long as the displacement of the pad bodies 2, 202, 302 and the abutting bodies 3, 203, 303 can be regulated by the engagement between the protrusion and the through hole (recess).

Therefore, for example, the diameters (cross-sectional area) of the through holes of the pad bodies 2, 202, 302 and the sticking bodies 3, 203, 303 and the diameters (cross-sectional area) of the protrusions of the fixing bases 10, 210, 310 are not necessarily the same. You may. For example, even if the diameter (cross-sectional area) of the through hole is set to a value slightly smaller than the diameter (cross-sectional area) of the protrusion, the pad bodies 2, 202, 302 and the affixed bodies 3, 203, 303 are elastically deformed. The through hole can be fitted into the protrusion.

In each of the above embodiments, one positioning unit (for example, the first sticking body 30 of the first embodiment and the second sticking body 231 of the second embodiment) has one positioning unit (for example, the first sticking body 30, 203, 303). Although the case of forming the through hole 30a) and the two positioning portions (for example, the through hole 31a and 231c) has been described, the present invention is not necessarily limited to this. For example, three or more positioning portions may be formed on one affixed body 3, 203, 303, and through holes and protrusions corresponding to the number of positioning portions may be formed on the pad bodies 2, 202, 302 and the fixing bases 10, 210, 310. It should be provided in.

In the first embodiment and the third embodiment, the case where the concave portions 31b, 32b, 331b, and 332b are engaged with the convex portions 26a, 26b, 326a, and 326b has been described, but the present invention is not necessarily limited to this. For example, the recesses 31b, 32b, 331b, 332b may be formed of through holes and may be engaged with the protrusions 26a, 26b, 326a, 326b.

Further, the convex portions 26a, 26b, 326a, 326b and the concave portions 31b, 32b, 331b, 332b may be omitted. Even in this configuration, the attachment bodies 3, 303 can be positioned with respect to the pad bodies 2, 302 by the protrusions 13, 14, 15, 313a, 313b, 314, 315 of the fixing bases 10, 310.

In the first embodiment and the third embodiment, a case where the cross-sectional shape of the convex portions 26a, 26b, 326a, 326b and the concave portions 31b, 32b, 331b, 332b in a plane orthogonal to the extending direction is trapezoidal has been described. However, it is not always limited to this. For example, the cross-sectional shape of the concave portion and the convex portion may be formed in a rectangular shape, a V shape, or a curved surface shape. Further, the concave portion and the convex portion may be formed of a columnar or hemispherical unevenness.

In the first embodiment and the third embodiment, detailed description of the dimensions of the convex portions 26a, 26b, 326a, 326b and the concave portions 31b, 32b, 331b, 332b in the front-rear direction and the width direction has been omitted. , The shape of the concave portion and the convex portion (dimensions in the front-rear direction and the width direction, the extension direction, the extension length, or the arrangement interval between the plurality of concave portions and the convex portions) in the area where the second sticking body is attached. The shape of the concave portion and the convex portion in the region where the third attachment body is attached may be different from each other. As a result, it is possible to prevent the third sticker from being stuck in the area where the second sticker should be stuck.

1,201,301 Seat pad 2,202,302 Pad body 25a, 25b, 25c, 225a, 225d, 225e, 325a1,325a2,325b, 325c Through hole (second positioning part)
26a, 26b, 326a, 326b Convex part (second positioning part)
3,203,303 Attachment 30a, 31a, 32a, 230a, 231c, 232c, 330a, 330b, 331a, 332a Through holes (first positioning portion)
31b, 32b, 331b, 332b recesses (first positioning part)
10, 210, 310 Fixed base 13, 14, 15, 213, 216, 217, 313a, 313b, 314, 315 protrusions

Claims (12)

In a seat pad including a pad body made of foamed resin and a sticker that is attached to the surface of the pad body and has a different functionality from the pad body.
On the sticking surface of the sticking body, a through hole extending in the thickness direction of the sticking body or a concave first positioning portion is formed.
On the surface of the pad body, a second positioning portion formed as a through hole extending in the thickness direction of the pad body is formed.
A seat pad characterized in that the second positioning portion is formed at a position communicating with the first positioning portion. In a seat pad including a pad body made of foamed resin and a sticker that is attached to the surface of the pad body and has a different functionality from the pad body.
A through hole or a concave first positioning portion extending in the thickness direction of the pad body is formed on either the surface of the pad body or the sticking surface of the sticker, and the first positioning portion is formed on the other. A seat pad characterized in that a convex second positioning portion into which the portion can be fitted is formed. The seat pad according to claim 1 or 2, wherein two or more of the first positioning portion and the second positioning portion are formed in the region to which one sticking body is attached. A plurality of the sticking bodies are stuck to the pad body,
The arrangement interval between the first positioning portions in the area where the sticking body is attached is set to a different dimension from the arrangement interval between the first positioning portions in the area where the other attachments are attached. The seat pad according to claim 3, wherein the seat pad is made. A plurality of the sticking bodies are stuck to the pad body,
The first positioning portion in the area where the sticking body is stuck and the first positioning portion in the area where the other sticking body is stuck are in a plane orthogonal to the thickness direction of the sticking body. The seat pad according to any one of claims 1 to 4, wherein the cross-sectional shape of the seat pad is formed into a different shape. The first positioning portion and the second positioning portion are formed according to any one of claims 1 to 5, wherein the first positioning portion and the second positioning portion are formed at an end portion on the outer edge side of the pad body in a region to which the attachment body is attached. Described seat pad. The second positioning portion is formed in a convex shape on the surface of the pad body formed of a curved surface and extends in the direction of the ridgeline of the curved surface of the pad body.
The seat pad according to claim 2, wherein the first positioning portion is formed in a concave shape on the sticking surface of the sticking body. A preparatory step for preparing a pad body and a sticking body having a function different from that of the pad body, a fixing step for fixing the pad body prepared by the preparatory step to a fixing base, and the fixing base by the fixing step. In a method for manufacturing a seat pad, which comprises a sticking step of sticking the sticking body on the surface of a pad body fixed to the pad body.
In the preparatory step, a through hole or a concave first positioning portion extending in the thickness direction of the sticking body is formed on the sticking surface of the sticking body, and the sticking body is stuck on a predetermined sticking area on the surface of the pad body. When attached, a second positioning portion formed as a through hole extending in the thickness direction of the pad body is formed in the pad body at a position communicating with the first positioning portion.
The fixing base in the fixing step is formed at a position where it can be fitted into the first positioning portion and the second positioning portion, and the pad main body has a dimension protruding from the second positioning portion in the fixed state of the pad main body. With protrusions that extend to the side
In the fixing step, the pad body is fixed to the fixing base by fitting the second positioning portion into the protrusion.
The method for manufacturing a seat pad, characterized in that, in the sticking step, the sticking body is positioned on the pad body by fitting the first positioning portion into the protrusion protruding from the second positioning portion. In the preparatory step, two or more of the first positioning portions are formed on one of the pasting bodies, and the second positioning portions are formed at positions corresponding to at least each of the two or more first positioning portions.
The method for manufacturing a seat pad according to claim 8, wherein the fixing base is formed with the protrusions at positions corresponding to each of the two or more first positioning portions. In the preparatory step, the arrangement interval between the first positioning portions of the one affixed body and the arrangement interval between the first positioning portions of the other affixed body are set to different dimensions.
In the fixing base in the fixing step, the protrusions are formed at positions corresponding to the first positioning portion of one of the pasting bodies and the first positioning portion of the other pasting body. The method for manufacturing a seat pad according to claim 9. In the preparatory step, the first positioning portion of the one affixed body and the first positioning portion of the other affixed body have different cross-sectional shapes in a plane orthogonal to the thickness direction of the affixed body. Formed by
The fixing base in the fixing step is formed with the protrusions having a shape corresponding to the first positioning portion of one of the pasting bodies and the first positioning portion of the other pasting body. The method for manufacturing a seat pad according to any one of claims 8 to 10. The preparation steps 8 to 11 are characterized in that the first positioning portion and the second positioning portion are formed at an end portion on the outer edge side of the pad body in a region to which the sticking body is attached. The method for manufacturing a seat pad according to any one.

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