JPS6018429A - Seat for vehicle with lazy back movable upward, downward and forward - Google Patents

Abstract

PURPOSE:To enhance a comfortable ride and to make it possible conveniently to load large-sized goods by constituting both right and left sides of a lazy back portion with fixed lazy back parts and mounting movable a lazy back part between both the fixed lazy back parts so as to be movable upward, downward and forward. CONSTITUTION:In the embodiment of a rear seat of a vehicle, a lazy back portion 4 comprises fixed lazy back parts 5 mounted on both right and left sides, a central fixed lazy back part 6 and movable lazy back parts 7 mounted between both the fixed lazy back parts 5 and 6. The movable lazy back part 7 is equipped with a guide rail 8 and a bearing in an installing recess on one side or on both sides thereof. On the other hand, the fixed lazy back part 5 is securely fitted with a guide sliding plate 24 engaged with the guide rail 8. When a locking rod 12 is pulled by a handling member 21 against a spring and the lower end of the locking rod 12 is drawn out from an inserting hole of a lock receiving part, the movable lazy back part 7 is usually movable upward and downward along the guide sliding plate 24, as well as the movable lazy back part 7 can be brought down forward about an axis.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seat back for an automobile that can be tilted forward and backward.

Cars are often loaded with more luggage than can fit in the trunk, and when loading large items like this, the rear seats of the car must be folded forward to ensure rearward visibility. At the same time, a backrest device that can be folded forward has been developed in hopes of securing rearward visibility.

In addition, in order to ensure rearward visibility, the backrest portion of the rear seat is made smaller, and in order to ensure passenger comfort, the backrest portion of the rear seat is made vertically movable to suit the passenger. A backrest device for a rear seat that can be moved up and down has also been developed.

However, an automobile seat that has both the functions of being able to freely fold forward and move up and down is not yet known.

Therefore, the present invention has a seat part and a backrest part, fixed backrest parts are provided at both left and right ends and the center part of the backrest part, and a vertically slidable front part is provided between the fixed backrest parts. A backrest seat for a car seat that is provided with a movable backrest that can be folded and rotated; A plurality of retaining grooves are formed in the guide rail at intervals in the height direction thereof and the protrusions engage with, a lock receiving part is fixed to the upper part of the guide rail, and a lock receiving part is fixed to the upper part of the guide rail. A backrest seat of an automobile seat that can be folded forward and down, in which a lock bar provided on the movable backrest portion is detachably installed, and a guide sliding plate that engages with the guide rail is fixed to a fixed backrest portion; It has a configuration that combines two functions.

An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a vehicle body, and has a front seat and a rear seat 2. The rear seat 2 is formed of a seat portion 3 and a backrest portion 4, and the backrest portion 4 includes fixed backrest portions 5 on both left and right sides and a fixed backrest portion 6 in the center.
and a movable backrest portion 7 sandwiched between the fixed backrest portion 5 and the central portion 6.
formed from.

As shown in FIG. 3, four parts 10 for attaching a guide rail 8 and a bearing part 9 are formed on the negative side or both sides of the backrest part 7. As shown in FIG. The recess 10 is open on the rear side and not open on the front side. The guide rail 8 has a plurality of engagement grooves 26, shown in FIG. A lock receiving part 11 having an insertion hole 13 formed in the upper part into which the lock part 12 is inserted and removed is attached, and the guide rail 8 is rotatably attached to the movable backrest part 7 with a shaft 14 at the lower part.

The bearing part 9 has the lock rod 12 at both upper and lower ends thereof.
The bearing part 9 is fixed to the movable backrest part 7 with a screw 17. The lock rod 1
2 is provided with a coil spring 18 between the upper projecting edge 15 and an annular spring receiving edge 22 formed on the lock rod 12, which always urges the lock rod 12 downward, and the lower side 19 of the lock rod 12 is It is inserted into the lock receiving part 11, and the upper side 20 is the operator 2.
1. The operator 21 is formed of a string or the like, and is inserted through a through hole 23 and exposed at the upper part of the movable backrest 7.

The fixed backrest portion 5 includes a guide sliding plate 24 that engages with a guide rail 8 pivoted to the movable backrest portion 7 and holds the movable backrest portion 7 engaged in the normal use position. screw 2
5.25, and the outer surface of the guide sliding plate 24 has an engagement groove 26 formed in the guide rail 8.
A protrusion 27 is attached that engages with and holds the guide rail 8 in engagement with the guide sliding plate 24 so as to be movable up and down.

In addition, as mentioned above, since the guide rail 8 is pivotally attached to one side or both sides of the movable backrest part 7, the guide rail 8
The guide sliding plate 24 which is the counterpart of the guide rail 8
It is attached to the shaft part or the central part 6 according to the 8th
The figure shows an example in which the shaft 14 passes through the backrest portion 7 and projects toward the central portion 6, and its tip is fitted into a rail 28 provided in the central portion 6 so as to be vertically movable. 29 is a storage tray formed on the back side of the movable backrest portion 7.

Next, we will discuss the effect.

Shown on the right side of FIG. 2 is the movable backrest 7 in its normal use position. The movable backrest portion 7 has a guide rail 8
The lower part is rotatably attached to the shaft 14, and the upper part is connected to the guide rail via a lock rod 12 inserted through the lock receiving part 11 and a bearing part 9 fixed to the movable backrest part 7. 8, and since the guide rail 8 is vertically movably engaged with a guide sliding plate 24 attached to the fixed backrest 5, the lock rod 12 and the guide rail 8 are not engaged with each other. If it is released, the movable backrest portion 7
is rotatable with respect to the fixed backrest portion 5 and the central portion 6.

That is, when the operator 21 protruding from the upper part of the movable backrest 7 is pulled, the lock rod 12 connected to the operator 21 is released from the downward bias by the spring 18 and moves upward. The lower side 19 of the guide rail 8 is pulled out from the insertion hole 13 of the lock receiving portion 11 fixed to the guide rail 8, and the engagement between the guide rail 8 and the lock rod 12 is released. In this state, the movable backrest portion 7 is pivotally attached to the guide rail 8 only via the shaft 14, and is rotatable about the shaft 14.

Therefore, when the movable backrest portion 7'' is rotated forward,
The guide rail 8 is maintained in a substantially vertical state while being engaged with the guide sliding plate 24, and only the movable backrest 7 can be rotated forward until it remains in contact with the seat 3. .

Further, the movable backrest portion 7 engages only with the guide sliding plate 24 of the fixed backrest portion 5 via the guide rail 8, regardless of the position in which the movable backrest portion 7 is used. Since the guide sliding plate 24 can be moved up and down by the engagement groove 26 and the projection 27, it is moved up and down and fixed to a substantially desired position by the engagement groove 26 and the projection 27.

As explained above, the present invention has a seat portion 3 and a backrest portion 4, and fixed backrest portions 5 and 6 are provided at both left and right ends and a central portion of the backrest portion 4, and the fixed backrest portion 5. A backrest seat for an automobile seat that is provided with a movable backrest portion 7 that can be slid up and down and rotated forward and backward between 6 and 6, and the movable backrest portion 7
Four parts 10 are provided on one side or both sides, a guide rail 8 is provided in the recessed part 10, and the guide rail 8 has engaging grooves 26 that are engaged with projections at intervals in the height direction of the guide rail 8. A lock receiving portion 11 is formed on the upper part of the guide rail 8.
A lock rod 12 provided on the movable backrest portion 7 is removably fitted to the lock receiving portion ti, and a guide sliding plate 24 that engages with the guide rail 8 is attached to the fixed backrest portion 5. 6, the guide rails 8 and 24 are movable up and down relative to each other, and the movable backrest portion 7 and the guide rail 8 are fixed to the lock rod 12. When the engagement is released, the movable backrest portion 7 and the guide rail 8 become rotatable around the shaft 14, and perform two functions: vertical movement and forward folding.

Note that the relationship between the guide rail 8 and the guide sliding plate 24 is not necessarily as shown in this embodiment, and their positional relationship may be relatively reversed so that the guide rail 8 is connected to the fixed backrest portion 5.
It is also possible to attach the guide sliding plate 24 to the movable backrest part 7.

[Brief explanation of the drawing]

Fig. 1 is a side view of the vehicle body, Fig. 2 is a perspective view of the rear seat, Fig. 3 is a perspective view of the main parts of the backrest, Fig. 4 is a state in which the backrest is rotated forward, and Fig. 5 is a perspective view of the rear seat. 6 is a perspective view of the shaft portion, FIG. 7 is a diagram of the engagement state of the guide rail and the guide sliding plate, and FIG. 8 is a separate schematic cross-sectional view. Description of symbols Vehicle body 1, rear seat 2, seat part 3, backrest part 4, fixed backrest part 5, center part 6, movable backrest part 7, guide rail 8, bearing part 9, recessed part 1O, lock receiving part ll , lock rod 12, insertion hole 13, shaft 14, projecting edge 15, bearing hole 16, screw 17, spring 18, lower side 19, upper side 20, operator 21, spring receiving edge 22, through hole 23, guide sliding Plate 24, screw 25, engagement groove 26, protrusion 27, rail 28, tray 29° Patent applicant: 1 person other than Tokyo Seat Co., Ltd. 1 [j 2 //? Zo

Claims (1)

[Claims] (1) It has a seat portion 3 and a backrest portion 4, fixed backrest portions 5.6 are provided at both left and right ends of the backrest portion 4, and upper and lower portions are provided between the three fixed backrest portions 5.6. This backrest seat for an automobile seat is provided with a movable backrest part 7 that can be slid and moved forward and forward. (2. In claim 1, a recess 1o is provided on one side or both sides of the movable backrest 7, a guide rail 8 is provided in the recess 1O, and a guide rail 8 is provided in the guide rail 8. A large number of engagement grooves 26 are formed at intervals in the height direction and engage the protrusions, and the upper part of the guide rail 8 has a lock receiving part 1.
A lock rod 12 provided on the movable backrest portion 7 is removably fitted to the lock receiving portion ti, and a guide sliding plate 24 that engages with the guide rail 8 is attached to the fixed backrest portion 5. A backrest seat of a car seat that is fixed to .6 and can be tilted forward and down.