JPS6251044U

JPS6251044U -

Info

Publication number: JPS6251044U
Application number: JP1985141993U
Authority: JP
Priority date: 1985-09-19
Filing date: 1985-09-19
Publication date: 1987-03-30

Description

[Brief explanation of the drawing]

第１図はバツクシートの側面図、第２図は第１
図Ａ部拡大図、第３図はバツクシートの斜視図、
第４図は第３図Ｂ部拡大図、第５図は第３図Ｂ部
の分解説明図、第６図はバツクシートのリクライ
ニング機構の作用説明図、第７図は従来例におけ
るシートバツクと荷物の干渉状況図である。１……シートバツク、３……フツク、４……支
持ピン、Ｐ……支持ピン４の中心点、Ｐ。……ｌ
_０とｌ_１の直交点、Ｐ_２……Ｐ_１がＰを中心にし
て反時計方向にθだけ回転した点、Ｐ_１……ｌ_１とｌ_３の交点、θ……最大リクライニング角、ｌ
……シートバツク横断面の外形線、ｌ_０……Ｐ_０を通る水平線、ｌ_１……シートバツクに接する垂
直線（面）、ｌ_２……Ｐ_２を通り_０ _２と直向
する直線、ｌ_３……Ｐを通る水平線。 Figure 1 is a side view of the back seat, Figure 2 is a side view of the back seat.
Figure A is an enlarged view, Figure 3 is a perspective view of the back seat,
Fig. 4 is an enlarged view of part B in Fig. 3, Fig. 5 is an exploded explanatory view of part B in Fig. 3, Fig. 6 is an explanatory diagram of the operation of the back seat reclining mechanism, and Fig. 7 is an illustration of the seat back and luggage in the conventional example. It is an interference situation diagram. 1... Seat back, 3... Hook, 4... Support pin, P... Center point of support pin 4, P. ...l
The orthogonal point of ₀ and _l1 , _P2 ...The point where _P1 is rotated by θ counterclockwise around P, _P1 ... _l1 and l ₃ intersection, θ...maximum reclining angle, l
...Outline of the cross section of the seat bag, l ₀ ...P ₀ l ₁ ... a vertical line (plane) that touches the seat back, l ₂ ... a straight line that passes through P ₂ and is perpendicular to ₀ ₂ , l ₃ ... a horizontal line that passes through P.

Claims

[Scope of utility model registration request]

In a structure in which the upper part of the seat bag 1 is supported by a support pin 4 so as to be rotatable around the support pin, the cross-sectional outline of the seat bag near the support pin insertion part is l, and the rear part of the seat bag is The perpendicular line that touches the outline is l ₁ , and the outline l and the straight line l ₁ The point of contact with P ₀ is P 0 , and the horizontal line passing through the point of contact P ₀ is l ₀ Then, the center P of the support pin 4 is above the horizontal line _l0 , and the intersection of the horizontal line _l3 passing through the center P and the vertical line _l1 is _P1 , and this _P1 point is the center. If the point obtained by rotating the seat back 1 counterclockwise by the maximum reclining angle θ from the upright position is P2, and the straight line that extends upward from point ₂ at right angles to ₂ is _L2 , then the cross-sectional outline l of the seat back is an arc _P1. A rear seat back shape characterized by being configured to be below _P2 and straight line _L2 .