JP2002272555A - Rear seat for vehicle with armrest - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain the changeover operability of an armrest without increasing the number of members and to improve a merchandise value by preventing the armrest from being imprudently brought down forwards from a storing recessed part by utilizing frictional force at the interference part of facing materials with each other. SOLUTION: For this rear seat 1 for a vehicle with the armrest, the armrest 10 is coated with the facing material 13 and is turned and switched to a storage position to be pushed into the storing recessed part 4 of the seat back 3 and a using position to be brought down forwards from the storage position and the seat back 3 is coated with the facing material 14 including the storing recessed part 4. As improved points, the facing materials 13 and 14 are each composed of a material for which pile or flexibility has directivity and the inner side face part 14b of the storing recessed part 4 of the facing material 14 of the seat back 3 is divided into an upper part 14c and a lower part 14d. Simultaneously, the upper and lower parts 14c and 14d are arranged so as to turn the directivity of the pile or the flexibility to different directions.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular rear seat, particularly to a vehicular rear seat with an armrest in which an armrest is put in and out of a storage recess provided in a seatback.

[0002]

2. Description of the Related Art As shown in FIGS. 2 to 4 to which the present invention is applied, a rear seat for a vehicle has an armrest 10 which constitutes a part of a seat back 3. Armrest 10
2A and 2B is pivoted from the storage position in the storage recess 4 of the seat back 3 to the use position in FIG. 4A with the lower side as a fulcrum. Further, the armrest 10 is coated with the cushioning pad 12 with a skin material, and is not held in the storage recess 4 by a dedicated engagement / disengagement structure. Held by force. This is because the armrest 10 is rich in elasticity because the core material 11 is embedded in the pad 12, and at the same time, the storage recess 4 is also partitioned by the pad 9 and the corresponding portion of the skin material constituting the seat back 3. This is because both of the elastic forces can be used because of the high elasticity.

FIG. 5 shows a conventional example of the skin members 13 and 14 of the armrest 10 and the seat back 3 described above. Each of the skin materials 13 and 14 is made of a piled material or a material such as a jersey or a tricot having directionality in elasticity, and has a texture (sout feeling) and a function (elasticity). The skin material 13 of the armrest 10 is formed in a bag shape by sewing the front and rear surface portions 13a and the side surface portions 13b. The skin material 14 of the seat back 3 is integrally formed by sewing the front and rear surface portions 14a and the inner surface portions 14b corresponding to the storage recesses 4 and the like. The pile or elasticity is such that, in the retracted state of the armrest 10 of FIG.
The side surface portion 13b is set so as to have the same front-rear or thickness direction (X direction) as the inner side surface portion 14b so as to have the same arrangement in the vertical direction (Y direction) as in FIG.

[0004]

In the armrest 10 described above, since the pad 12 is formed by foam molding or the like and is inserted into the bag-like skin material 13, the width of the armrest 10 is smaller than that of the storage recess 4.
It is difficult to form the width dimension with high precision, and there is a restriction on the dimension precision. When the armrest 10 is forced into the storage recess 4 from the storage structure, the two skin materials 13,
Of the 14, the side portion 13b and the inner side portion 14b are particularly liable to be rubbed against each other. Due to such circumstances, conventionally, the armrest 10 is formed so as not to become too strong at the time of putting in and out, and thus the armrest 10 is pulled forward by the forward load received at the time of sudden braking, and is inadvertently pulled out onto the seat cushion 2 or the seatback 3 is pulled out As shown in FIG. 3, when the user is erected again after being tilted forward on the seat cushion 2, the user may accidentally fall out of the storage recess 4. Such a defect is that the armrest 10 is
This tends to occur in a mode in which the wall thickness is relatively reduced by being disposed together with the armrest 10, a mode in which the armrest 10 is made heavy by members such as cup holders attached to the rotation end side and is easily rotated. However, even in such a situation, since the armrest 10 is attached to the storage recess 4 via the lower pivots and the like, it does not come off the storage recess 4. As a countermeasure, it is conceivable to add a locking means for locking the armrest 10 in the storage position. However, both the armrest 10 and the storage recess 4 secure the locking restricting portion due to the presence of the pads 12, 9 and the like. hard.

An object of the present invention is to solve the above-mentioned problems. Specifically, by utilizing the frictional force at the interference portion between the skin materials, the armrest is prevented from being inadvertently moved forward from the storage recess, whereby the operability of switching the armrest is increased without increasing the number of members. It is to maintain and improve the product value. Other objects will be clarified in the following description.

[0006]

According to the present invention, in order to achieve the above object, as shown in FIG. 1, an armrest 10 is covered with a skin material 13 and is pushed into a storage recess 4 of a seat back 3. The vehicle rear seat with the armrest, wherein the seat back 3 is pivotally switched from the storage position to the use position moved forward from the storage position, and the seat back 3 is covered with the skin material 14 including the storage recess 4,
Each of the skin materials 13 and 14 is made of a pile or a material having directionality in elasticity. Of the skin materials 14 of the seat back 3, an inner surface portion 14 b of the storage recess 4 is an upper portion 14.
c and the lower portion 14d, and the upper and lower portions 1
4c and 14d are characterized in that they are arranged so that the directions of the pile or elasticity are different.

[0007] The above invention has been completed on the following background. The present inventors have determined from various tests and measurements that the material composition of the skin materials 13 and 14 is a piled material, a jersey, a tricot, a bolster type material or the like having directionality in elasticity. When applied to the interference part at the place 4, the dynamic friction coefficient (μd) is 0 for a material that is usually used, depending on the directionality of the material of the inner surface part 14b and the side part 13b that constitute the interference part. 2.
It was found to change to about 0. The present invention utilizes the coefficient of kinetic friction to provide the armrest 1 with respect to the storage recess 4.
It is devised so as to optimize both the holding force of 0 and the operability of turning the storage recess 4 forward. The structural feature is that, of the skin material 14 of the seat back 3, the inner side surface portion 14c of the storage recess 4 is divided into upper and lower portions 14c and 14d, and the piles or the elasticity of the two are arranged in different directions. It is in the point which did. For example, in the storage position of the armrest 10 as described in claim 2, the holding force is increased by increasing the frictional force of the interference portion in the upper portion 14c, and at the same time, is decreased in the lower portion 14d. Thus, the turning operability after the armrest 10 is pulled out from the storage recess 4 by a predetermined angle can be improved. As for the manufacture and the product, the upper and lower portions 14c, 1
Although the work of sewing and joining 4d is added, it can be performed continuously with the processing of other sewing parts, so that there is no significant problem in work man-hours, and conversely, the conventional problem can be solved without increasing the number of members, and the product value is high. Can be improved.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram showing a main part configuration of the present invention in comparison with FIG. 2 to 4 show examples of a vehicle rear seat to which the present invention is applied. 2 is a front view mainly showing the seat back of the rear seat, FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2, FIG. 3 is a schematic cross-sectional view showing a state where the seat back of the rear seat is moved forward,
4A and 4B are schematic external views showing the armrest of the rear seat in a use position and a storage position. In the following description, after the overall structure of the vehicle rear seat is outlined in FIGS. 2 to 4, the main part and operation of the invention will be described in detail including FIG. 1.

(Overall Overview) The rear seat 1 for a vehicle shown in FIGS.
No. 316469 except for the skin material structure. The structural feature is that the seat cushion 2 is a bench seat, while the seat back 3 is a semi-separated back part (hereinafter referred to as a back half) 3 with a storage recess 4.
A and separate back part (hereinafter, back half) 3B
The point that the armrest 10 and the lid 35 are rotatably attached to the storage recess 4 via the brackets 20A and 20B and the pivot, and the respective back halves 3A and 3B
Is independently moved forward on the seat cushion 2. That is, each of the back halves 3A and 3B has shafts 5c and 5d to be engaged with the lower mounting portions 5a and 5b on the vehicle body side, and is pivotally supported about the shafts 5c and 5d as a fulcrum.
Switching is made between the “standing position” indicated by the reference numeral in FIG. 3 and the “forward position” indicated by the reference numeral. Each back half 3
In FIGS. 2A and 2B, the lock pieces at the position of reference symbol D at the "standing position" as shown in FIG.
, The engagement is released and the back half 3A or /
And 3B can be tilted to the "forward tilt position". In the forward lowered position, the back halves 3A and 3B are superimposed on the seat cushion 2 to form a seat back through which is substantially flush with the floor surface 7A in the luggage compartment 7.

Here, the back halves 3A and 3B are configured to hold the pads 9 corresponding to the frames 8 (8a, 8b, etc.) as the core material and to cover the pads 9 with a dedicated skin material 14. The armrest 10 is also a core frame 11
In this configuration, the pad 12 is held by a special skin material 13. In FIGS. 2 to 4, a part of the frame is omitted in drawing, and only a part of the skin materials 13 and 14 on the side of the back half 3B is shown. Reference numeral 29 denotes a back board mounted on the back of the back half 3A.

The back half 3A is provided with a storage recess 4 penetrating front and rear, and the storage recess 4 incorporates an armrest 10 and a lid 35. The armrest 10 has a shaft hole and a guide hole provided on both lower sides, and
On the other hand, pins and guide pins protruding from the mounting brackets 20A and 20B are mounted so as to be switchable in a state of being engaged with the shaft holes and the guide holes. Lid 3
5 has a two-step pocket 43 partitioned by front wall portions 35a and 35b, is mounted coaxially with the armrest 10 using a mounting arm (not shown) so as to be rotatable and switchable, and has a rear surface of the back half 3A. The rearward rotation is restricted by the locking portion 20 provided on the side. The storage recess 4 has a surface formed by an inner surface portion 14b and the like of the skin material 14 constituting the back half 3A as shown in FIG. The inner side surface portion 14b, together with the corresponding side surface portion 13b of the skin material 13 of the armrest 10, becomes a main part of the present invention described later.
The armrest 10 and the lid 35 are, as shown in FIG. 4A, a use position of the armrest 10 in which only the armrest 10 is rotated on the seat cushion 2, and a lid forward movement for further moving the lid 35 forward at the use position. The position and the storage position where both are accommodated in the storage recess 14 as shown in FIG.

(Principal Structure) Next, FIG. 1 shows the structure of the skin material forming the outer surfaces of the storage recess 5 and the armrest 4 described above.
It is explained including. The skin material 13 of the armrest 4 and the skin material 14 of the seat back 3 are made of a jersey, tricot, bolster-based material or the like having directionality in pile or elasticity, and wadding or backing fabric is laminated on the back side. A point where a pattern such as a pattern is applied by ultrasonic wave or thermal processing as necessary, a point where the skin material 13 is formed in a bag shape by sewing the front and rear surface portions 13a and both side surface portions 13b, Conventionally, the skin material 14 is formed integrally by sewing the front and rear surface portions (only a part of the rear surface portion) 14a and the inner surface portion 14b corresponding to the storage recesses 4. The difference from the conventional one is that the skin material 13 is
The direction of the pile or elasticity of both side portions 13b with respect to 3a is changed, the skin material 14 divides the inner surface portion 14b into upper and lower portions 14c, 14d, and the directions of pile or elasticity are different from each other. It is to be.

That is, in the skin material 13, the front and rear surface portions 1
The pile 3a and the side portions 13b are provided so that the pile or elasticity direction (at the armrest storage position) is both in the vertical direction (that is, the Y direction in which the armrest is easily extended). For this reason, both side portions 13b are more likely to extend vertically (Y direction) at the storage position of FIG. On the other hand, the inner surface portion 14b of the skin material 14 has the divided upper portion 14c and lower portion 14d joined by sewing, and the upper and lower portions 14c and 14d have different pile or stretch directions. It is arranged to become. In this embodiment, the upper portion 14c has the same arrangement (Y direction) as the front and rear surface portions 14a and the side portions 13b, and the lower portion 14d has the same pile or elasticity direction as the conventional one in the front and rear or thickness direction ( X direction). For this reason, the upper part 14
c is easier to extend vertically (Y direction) at the storage position of FIG. 1 than the conventional product.

What is important in setting the directionality of the pile or elasticity as described above is, for example, the armrest 10.
When the storage position is specified, the upper part 14c is arranged in the same Y direction as the opposing side surface part 13b, and the lower part 14d is arranged in the X direction intersecting the opposing side surface part 13b. This is because the dynamic friction coefficient (μ
This is to solve the above-described problem using the value of d). That is, as a result of the sliding friction measurement using various materials, the present inventors have found that when the skin materials 13 and 14 are of the same material, the directions in which the inner side surface portion 14b and the side surface portion 13b extend are both arranged in the Y direction. In this embodiment, the value of the coefficient of kinetic friction (for example, 1.7 μd for a jersey material) is generally the largest, and the inner side portion 14 b and the side portion 13
In the embodiment in which both the extending directions are arranged in the X direction, the value of the dynamic friction coefficient (for example, 0.7 μd in the jersey material) becomes relatively small, and the direction in which the inner side surface portion 14b and the side surface portion 13b extend is XY. It was confirmed that the value of the dynamic friction coefficient (for example, 0.5 μd for a jersey-based material) was the smallest in an arrangement in which it intersected. Of course,
The coefficient of kinetic friction in each mode varies depending on conditions such as the length and thickness of the pile and the treatment of the backing fabric, etc., but in the case of a commonly used skin material, as described above, in the direction of the pile or elasticity as described above. Values differ greatly. The present invention uses the displacement of the dynamic friction coefficient (μd) as in the embodiment to obtain the following operation.

(Operation) In this structure, the armrest 10
In the storage position, the maximum frictional force is generated at the interference portion between the side surface portion 13b and the upper portion 14c, and the frictional force increases the holding force of the armrest 10 with respect to the storage recess 4 by several steps as compared with the conventional product. Have been. As a result, as the rear seat, the armrest 10 must be reduced in thickness due to the presence of the lid 35 as in the embodiment, and the armrest 10 is easily inclined forward by cup holders attached to the rotation end side. Even when the seat back 3 is inadvertently moved forward due to a forward load received at the time of sudden braking as in the prior art, or when the seat back 3 is moved forward on the seat cushion 2 as shown in FIG. It is possible to reliably prevent a quality instability factor of accidentally falling out of the storage recess 4 without adding the number of members. At the same time, in the process of turning the armrest 10 from the storage position to the use position, when the armrest 10 is pulled out by a predetermined angle and the side portion 13b comes out of contact with the upper portion 14c, the armrest 10 is thereafter moved to the side portion 13b. Rotation can be smoothly switched to the use position while resisting a relatively small frictional force generated between the lower portion 14d and the lower portion 14d. For this reason, in terms of performance, it is possible to improve both the stable holding of the armrest 10 at the storage position and the rotation switching property, and it is possible to further improve the product value and reliability.

The present invention only needs to have the technical element according to the first aspect. For example, a type in which the lid 35 is omitted and only the armrest 10 is disposed in the storage recess 4 may be used. Also, regarding the material composition of each of the skin materials 13 and 14, a pile is applied with a direction,
Or what is necessary is just what has directionality in elasticity.

[0017]

As described above, in the vehicle rear seat with the armrest according to the present invention, the holding force of the armrest can be obtained without increasing the number of members and by slightly changing the arrangement of each part of the skin material. As a result, it is possible to eliminate the factor of quality instability that the armrest is accidentally slipped out of the storage recess due to vibration or the like as in the prior art, and at the same time, it is possible to improve the operability of turning the armrest from the storage position to the use position.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a main part of a skin material in the seat structure of FIG. 2;

FIG. 2 is a front view showing the overall configuration of a vehicle rear seat to which the present invention is applied.

FIG. 3 is a longitudinal sectional view taken along line AA of FIG. 2;

FIG. 4 is a schematic diagram showing switching of rotation of an armrest of the rear seat.

FIG. 5 is a schematic configuration diagram for explanation showing a problem of the conventional structure corresponding to FIG. 1;

[Explanation of symbols]

 1 is a vehicle seat 2 is a seat cushion 3 is a seat back 4 is a storage recess 8, 11 is a frame (core material) 9, 12 is a pad 10 is an armrest 13, 14 is a skin material 13a is an anteroposterior surface of an armrest side skin material The portion 13b is a side surface portion of the armrest side skin material 14a is a front or front and rear surface portion of the seatback side skin material 14b is an inner surface portion of the skin material corresponding to the storage recess 14c is an upper portion of the inner surface portion 14d is an inner surface Lower part of the part

Claims (2)

[Claims] An armrest is coated with a skin material,
A vehicle with an armrest which is pivotally switched to a storage position where it is pushed into the storage recess of the seatback and to a use position which is moved forward from the storage position, and wherein the seatback is covered with a skin material including the storage recess. In the rear seat, each of the skin materials is made of a material having a directionality in pile or elasticity, and, among the skin materials of the seat back, an inner surface portion of the storage recess is divided into an upper portion and a lower portion, and ,
A rear seat for a vehicle with an armrest, wherein the upper and lower portions are arranged so as to have different directions of pile or elasticity. 2. In the storage position of the armrest,
Friction force generated in an interference portion between the inner side surface portion of the storage recess and the opposite side surface portion of the armrest side skin material,
2. The method of claim 1, wherein the upper portion is larger than the lower portion.
A vehicle rear seat with an armrest according to claim 1.