JPS6338045A - Rotary seal of vehicle and the like - Google Patents

Abstract

PURPOSE:To facilitate the arrangement of a rotary seat by joining upper and lower frames mutually rotatably to each other and fixedly installing said frames to a cushion frame and floor face side member via arms respectively, and deforming said arms. CONSTITUTION:In a rotating mechanism 13 which is installed in between a cushion frame 11 and slide rails 12a, 12b fixed to a floor face side, an upper frame 14 and a lower frame 15 are mutually rotatably joined to each other via brackets 20. And, a pair of arms 16, 17 which are fixed to the cushion frame 11 are fixedly installed on the upper frame 14, while a pair of arms 18, 19 which are fixed spreading over the slide rails 12a, 12b are fixedly installed on the lower frame 15. Also, an operating rod 21 is rotatably supported by the upper frame 14 via a lock base 22, and a lock plate 23 is displaced to the lower frame 15 side by means of a spring 24, to be locked with a lock bracket 25.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a rotating seat provided in a vehicle or the like.

[Conventional technology]

Conventionally, this type of rotating seat has a cushion frame (11) of a seat cushion Sc and a base plate (3) fixed to slide rails (2a) (2b) as shown in FIGS. 1O to 12. In the section, a shaft supporting member (6) consisting of a shaft (4) and a bearing (5)
The upper rail (7) and the lower rail (8) are pivoted through the cushion frame (1) and the base plate (3) and have a central angle of 45° with the pivot support as the center.
are fixed and engaged with each other in the vertical direction, and the base plate (
3) is equipped with a support roller (9) that rolls into contact with the lower surface of the cushion frame (1).A lock plate (10) integral with the handle is pivotally attached to the cushion frame (1), and a base plate (3) is attached to the cushion frame (1). The cushion frame (1) is rotatable with respect to the base plate (3), and the cushion Sc can be changed direction and locked.

[Problem that the invention seeks to solve]

In the conventional rotating seat configured in this way, the rotating mechanism consists of a cushion frame (11) and a base plate (11).
3) must be configured so that they face each other in a flat shape,
For this reason, there is a step on the floor side where this rotating seat is installed, that is, the height of the left and right slide rails (2a) and (2b) is different, making it impossible to share it with other vehicles.
When the rotation angle of the cushion frame (1) with respect to the base plate (3) is 45° or more, the upper rail (7)
The engagement between the shaft support member (6) and the lower rail (8) is released, and the shaft support member (6),
Upper rail (7).

There are many parts such as the lower rail (8) and the support roller (9), which makes the configuration complicated and requires time and effort to assemble, resulting in a high cost and a large amount of M.

In view of this, the present invention provides a rotating seat for a vehicle, etc., which can be installed with the rotating part held horizontally even when there is a difference in the shape of the cushion frame or the floor surface side.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a rotating seat of a vehicle, etc., in which a disc-shaped upper frame and a lower frame are in sliding contact along the entire circumference, and also by a bracket. The upper frame is fixed to a cushion frame via an arm, the lower frame is fixed to a floor side member via an arm, and the upper frame and lower frame are held at a required rotational position by a locking member. It is configured to lock.

[Effect]

With this configuration, even when the cushion frame is formed with different levels on the left and right sides, or when there is a level difference on the floor side, the arm on the upper frame side or the arm on the lower frame side can be aligned with the shape of the cushion frame or the floor. By bending and deforming according to the level difference on the surface side, the upper frame and lower frame can be installed so that they are in sliding contact in a horizontal state, and the cushion frame can be rotated sympathetically and reliably with respect to the floor side. .

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 9.

In this example, the slide rails (12a) (12b) are fixed to the cushion frame (11) and the floor side.
) The rotation mechanism (13) is comprised of a disk-shaped upper frame (14) and a lower frame (15), and the lower surface side of the upper frame (14) is provided with a protrusion (14a) having an arcuate cross section. ) on the right circumference, and the lower frame (
15) The upper frame (14) has a protrusion (
Corresponding to the projection (14a), a concave groove (15a) having an arcuate cross section and a larger diameter than the cross-sectional shape of the protrusion (14a) is formed in a right circular shape, and the upper frame (14) has a cushion frame (11). A pair of approximately dogleg-shaped arms (1
6) and (17) are fixed to the lower frame (15) with a pair of roughly doglegged arms (1B) and (19) that are fixed across both slide rails (12a) and (12b), respectively. . These arms (16) to (19) can be of any suitable shape, such as straight ones without bending into a dogleg shape, and can be adapted to the shape of the cushion frame (11), the level difference in the floor surface, etc. bend up and down.

Brackets (20) having a U-shaped cross section are fixed to the circumferential surface of the upper frame (14) at required intervals, and the lower frame (15) is brought into a state in which the protrusions (14a) are in sliding contact with the recesses 1ji (15a) by line contact. It is rotatably supported.

This bracket (20) has a flange (2
0a) is provided to increase the strength.

Note that the upper frame (14) is provided with a through hole (14b) for locating or for injecting grease.

In addition, the upper frame (14) is equipped with an operating rod (21).
) is rotatably supported via a lock base (22),
A lock plate (23) is fixed to this operating rod (21), and a spring (23) is attached to the operating rod (21).
4), the lock bracket (25) is pivoted downward, that is, toward the circumferential surface of the lower frame (15), and has a notch lock portion (25a) at a predetermined position on the circumferential surface of the lower frame (15). is fixed.

The upper frame (14) of the rotation mechanism (13) constructed in this way has the ends of the arms (16) and (17) attached to corner brackets (26) arranged at a part of each corner of the cushion frame (11). The lower frame (15) fixes the ends of the arms (1B) and (19) to the movable side rails (12az) and (12bz) of the slide rails (12a) and (12b). Here, the cushion frame (11) is a slide rail (12a).

(12b), but the cushion frame (11) is rotatable relative to the slide rail (12a), (
12b) Rock play 1 facing forward
- It is locked by the engagement of the lock bracket (23) with the lock bracket (25), and is released by rotating the opening plate (23) using the operating rod (21) against the biasing force of the spring (24). It is made to be done.

From the viewpoint of operability for unlocking, the operating rod (21) should be positioned in the front and lateral direction of the cushion frame (11) so that the opening 7 base (22) is connected to the upper frame (14).
), and lock brackets (25) are positioned and fixed to the front of the lower frame (15), respectively. This lock bracket (25) extends from the notch lock part (25a) to -
The front part (25b) on the blade side is formed into a suitably rounded shape, and the front half is connected to the cushion frame (11) as shown in FIG.
Lock plate (2) when rotating in unlocked state
3) is located inside the movement fllL trace a, and therefore, when the cushion frame (11) is returned from the required rotation position to the front direction and rotated and locked, the lock plate (23) is locked by the operation loft (21). If not rotated in the release direction, it will be guided in sliding contact with the rounded front part (25b) of the lock bracket (25) and automatically rotated and engaged with the notch lock part (25a). , the lock bracket (25) is attached to the lower frame (
It may be fixed to the front arm (18) of 15).

Also, the arm (1B) of the lower frame (15).

A stopper piece (27) is fixed to the upper surface side of the end of the cushion frame (19), and a stopper bin (28) is bored in each corner bracket (26) of the cushion frame (11). ) facing forward,
That is, in the normal state, the upper and lower B of the cushion frame (11)
Xt, and is also designed to lock against rotation of the other. The rotational cushion frame (11) is configured to be rotated in only one direction within a range of approximately 90°.

That is, as shown in FIG. 4, the stopper piece (27) forms a notch-shaped engagement: a (27a) that opens toward the edge of the ring, and raises the periphery of this engagement 'a (27a). the insertion part (27) of the head (28a) of the stopper pin (28).
b) is formed. Moreover, this stopper piece (27) forms only a flat notched engagement 4 (27a) as shown in FIG. 8, and the arms (1B) and (19) to which this stopper piece (27) is fixed are Engage with the end m (27
The head (28) of the stopper pin (28) corresponds to
a) into which the notch insertion portion (18a) is inserted.

(19a) is formed. Like this, the stopper piece (27
) by making it flat, the vertical dimensions of the rotating machine $1 (13) can be made more compact compared to the configuration of the previous example (see Figure 3), and the height of the cushion frame (11) can be lowered. This means that the settings can be made (see Figure 7).

On the other hand, the head (28a) of the stopper bottle (28) that is engaged with the engagement m (27a) of the stopper piece (27) is coated with a resin material (29) as shown in No. 9r. As a result, the sliding engagement corresponding to the stopper piece (27) can be smoothly performed without generating any scraping noise.

The rotating seat configured as described above has a cushion frame (11) and a floor side slide rail (12a).
) and (12b), the rotation mechanism (
13) is the upper frame (14) and lower frame (1
5) are always shaped like each other to form a protrusion (14a) and a groove (15).
a) is in sliding contact with the line contact, so it rotates smoothly, and the upper frame (14) and lower frame (
15) are arms (1B), (17) and (1
8), cushion frame (1) via (19)
1) and slide rails (12a), (12b
), so if the upper frame (14) has a deformed shape, there is a step on the floor, or even in a complicated double-sided layout, the upper frame (14) can be fixed by simply bending and deforming the arms (16) to (19). ) and lower frame (15
) can be supported while maintaining horizontal superposition, allowing for common use among different types of vehicles.

The rotation center position of the cushion frame (11) can be changed by the arm (18>) of the lower frame (15).

(19) Slide rail (12a), (12
It is only necessary to change the fixing position to (b), and the vertical position depends on the shape of the arms (16) to (19) and the arm (
1B).

(19) can be varied by simply changing the shape of the stopper member of the cushion frame (11), that is, the stopper piece (27).

Further, since the shaft, shaft supporting members such as bearings, support rollers, etc. can be omitted, the construction is simple with fewer components, and the weight can be reduced by not using heavy parts such as those mentioned above.

It should be noted that the present invention is not limited to the embodiments described above, and the configuration, shape, etc. of each member can be changed as appropriate without departing from the gist of the present invention.

〔Effect of the invention〕

As described above, according to the present invention, the disc-shaped upper frame and the lower frame are in sliding contact with each other along the entire circumference and are rotatably connected to each other via the bracket, and the upper frame is connected to the lower frame via the arm. Since the lower frame is configured to be fixed to the floor side member via the arm, the upper frame can be fixed even when the cushion frame is formed with different steps on the left and right sides or when there is a step on the floor side. By bending and deforming the arm on the frame side or the arm on the lower frame side to match the shape of the cushion frame or the step on the floor side, the upper frame and lower frame can be installed so that they are in sliding contact in a horizontal state. It can be used even with different vehicle layouts, allowing for common use between different types of vehicles.Also, since both frames are in sliding contact with each other in a linear manner, the cushion frame can be used against the floor side. It can be rotated internally and reliably, and since it does not use shafts, shaft support materials such as bearings, support rollers, etc., the number of parts is small, simplifying the configuration, reducing weight, and reducing costs. This has the effect of making it possible.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the main parts of the rotary seat of the Keiryo etc. according to the present invention, Fig. 2 is a sectional view of the main parts, and Fig. 3 is the engagement part between the cushion frame and the arm on the lower frame side. 4 is an exploded perspective view of the engaging part in FIG. 3,
Fig. 5 is a perspective view of the locking member between the upper frame and the lower frame, Fig. 6 is an explanatory diagram of the same, and Fig. 7 is a front view of another example of the engagement portion between the cushion frame and the arm on the lower frame side. , FIG. 8 is an exploded perspective view of the engaging portion in No. 71g1, FIG. 9 is a partially cutaway front view of yet another example of the engaging portion, FIG. 10 is a side view of a conventional rotary seat, and FIG.
The figure is an exploded perspective view of the frame of the rotating seat, No. 12.
The figure is a sectional view of a portion of the same. In the figure, (11) is a cushion frame, and (12a) is a cushion frame. (12b) is a slide rail, (14) is an upper frame, (14a) is a projection, (15) is a lower frame, (
15a) is a concave groove, (16) to (19) are arms, (2
1) is the operating rod, (23) is the lock plate, (25
) is the lock bracket, (27) is the stopper piece, (2
8) is a stopper pin. 1. Fig. 2 11: ri, tsu 3 sofre-4 ichi 1 Fig. 3 t-ko Fig. 6 Fig. 8 Fig. 9 Fig. 10 Fig. 11

Claims (1)

[Claims] A disc-shaped upper frame and a lower frame are in sliding contact along the entire circumference and are rotatably connected to each other via a bracket, and the upper frame is fixed to a cushion frame via an arm. A rotating seat for a vehicle, etc., wherein the lower frame is fixed to a floor side member via an arm, and the upper frame and the lower frame are locked at a required rotational position by a locking member.