JPH018200Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention mainly relates to a sliding and rotating mechanism for a seat installed in a vehicle such as an automobile.

[Conventional technology]

2. Description of the Related Art Conventionally, seats installed in vehicles such as automobiles have been provided that can slide back and forth and can rotate from a forward-facing position to a rear-facing position.

[Problem that the invention attempts to solve]

However, with conventional sliding and rotatable seats, the seat can rotate even if it is at the front or rear end of the sliding range, and if the seat rotates in this position, the seat will collide with the front seat, the rear seat, or the bulkhead. This may cause damage to the seat.

[Means for solving problems]

As a means to solve the above-mentioned conventional problems, the present invention rotatably attaches the upper frame 2 on the lower frame 1,
In the sliding rotation mechanism of the seat 4 in which a lower sliding rail 31 is laid on the upper frame 2 and an upper sliding frame 32 is slidably attached to the lower sliding rail 31, the lower frame 1
A locking hole 1 that can overlap the upper frame 2 and the upper frame 2.
6, 17, 23 are provided, and the locking hole 1 is provided in the upper frame 2.
6, 17, and 23 is rotatably mounted, and a contact plate 28 is extended upward to the engaging claw 26, while a rotary rod 43 is rotatably mounted on the lower surface of the seat 4. from the rotary rod 43 to the transmission plate 4.
4 is held out, and when the seat 4 is located at the center of the sliding range, the transmission plate 44 comes into contact with the contact plate 28 of the engagement claw 26.

[Effect]

The operation of the present invention based on the above configuration is as follows.

When the seat is facing forward or backward, the locking holes in the lower frame and the locking holes in the upper frame overlap, and the locking claws are inserted through the two overlapping locking holes to engage and rotate the seat. prevent. When the seat is located at the front or rear end of the sliding range, the contact plate of the engaging pawl does not contact the transmission plate of the rotating rod, so even if the rotating rod is rotated, the engaging pawl will not come into contact with the transmission plate and the contact plate. cannot be rotated. When the seat is located in the center of the sliding range, the transmission plate of the rotating rod comes into contact with the contact plate of the engagement claw, rotating the rotation rod and rotating the engagement claw via the transmission plate and the contact plate. This allows the engaging pawl to be disengaged from the two overlapping locking holes.

[Effect of idea]

Therefore, in the present invention, the seat can only be rotated in the center of the sliding range, and cannot be rotated at the front or rear end positions, resulting in collisions with the front or rear seats, or the bulkhead, etc. This will definitely be prevented.

〔Example〕

The present invention will be described with reference to an embodiment shown in Figs.
2 is formed, and a flange 13 is formed on the periphery of the hole 12.
are fixed by rivets 14, and a fitting groove 15 is formed by the upper surface of the raised portion 11 and the lower surface of the flange 13. Reference numeral 2 denotes an upper frame, in which a concave portion 21 is formed in the center, and a flange portion 22 is formed on the periphery of the concave portion 21.
is formed, and by slidably fitting the flange 22 into the fitting groove 15 of the lower frame 1, the upper frame 2 is attached to the lower frame 1.
rotatably mounted on. Raised portion 11 of lower frame 1
A forward locking hole 16 passing through the top surface and the flange 13
A rear locking hole 17 is provided, and a locking hole 23 that can overlap the front locking hole 16 and the rear locking hole 17 is also provided in the collar portion 22 of the upper frame 2. Further, a rotating shaft 25 is rotatably supported by bearings 24, 24 on the upper surface of the upper frame 2, and an engaging claw 26 is extended from the rotating shaft 25, and the engaging claw 26 is attached to the front side of the lower frame 1. The locking hole 16 or the backward locking hole 17 and the locking hole 23 of the upper frame 2 are urged by a spring 27 in a direction in which they pass through each other in an overlapping state. Further, a contact plate 28 is extended upward from the root end of the engagement claw 26. A lower sliding rail 31 is further laid on both edges of the upper surface of the upper frame 2. An upper sliding frame 32 is slidably fitted to the lower sliding rail 31, and a seat 4 is mounted on the upper sliding frame 32. is installed via a frame 41. A locking hole 33 is provided passing through the upper sliding frame 32 and the lower sliding rail 31, and an engaging claw 34 is engaged with the locking hole 33.
An operating rod 35 communicates with the engaging claw 34, and the operating rod 3
A handle 35A is formed at the tip of the seat 4, and a pivot 3 that connects to one side edge of the frame 41 of the seat 4 is formed in the center.
6 are in communication, and the spring 37 urges the engaging claw 34 in the direction of penetrating into the locking hole 33. Further, bearings 42, 42 are fixed to the lower surface of the frame 41 of the seat 4, a rotating shaft 43 is rotatably supported on the bearings 42, 42, and a transmission plate 44 is connected to the rotating shaft 43.
is presented. A handle 43A is provided at the tip of the rotating shaft 43.
is formed.

In the above configuration, when the seat 4 is in the forward facing state, the forward locking hole 16 of the lower frame 1 and the locking hole 23 of the upper frame 2 overlap, and the engaging claw 26 engages with the overlapping locking hole 16 in this way. The seat 4 is fixed forward by penetratingly engaging the stop hole 23. In this state, the handle 35A
When the engaging claw 34 is released from the locking hole 33 of the lower sliding rail 31 and the upper sliding frame 32 by pushing with the operating rod 35, the upper sliding frame 32 slides against the lower sliding rail 31. The seat 4 becomes movable and the seat 4 slides. At the front and rear end positions of the sliding range, as shown in FIG.
The rotating shaft 43 is not in contact with the transmission plate 44 of the handle 3.
5A, the transmission plate 44 idles. Next, when the seat 4 is positioned at the center of the sliding range, the contact plate 28 of the engaging claw 26 comes into contact with the transmission plate 44 of the rotating shaft 43, as shown in FIG.
When the rotating shaft 43 is rotated via the handle 43A, the rotation is transmitted to the contact plate 28 via the transmission plate 44,
The information is further transmitted from the contact plate 28 to the engaging pawl 26, and the engaging pawl 26 rotates to open the overlapping forward locking holes 1.
6, 23, the seat 4 becomes rotatable. When the seat 4 faces backward, the rearward locking hole 17 and the locking hole 23 overlap, and in this state, the locking claw 26
When the rear locking holes 17 and 23 are penetrated and engaged, the seat 4
is fixed facing backwards. At the front and rear end positions of the sliding range, it is no longer possible to rotate it forward.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a front sectional view, FIG. 2 is an exploded perspective view, and FIG. 3 is a relationship between the contact plate and the blocking piece at the front end position of the seat sliding range. FIG. 4 is an explanatory diagram of the relationship between the contact plate and the blocking piece at the center position of the seat sliding range. In the figure, 1... lower frame, 15... fitting groove, 16...
Front locking hole, 17...Backward locking hole, 2...Upper frame,
22... Flange portion, 23... Locking hole, 26... Engaging claw, 28... Backing plate, 31... Lower sliding rail, 3
2... Upper sliding frame, 4... Seat, 43... Rotating shaft, 44... Transmission plate.

Claims (1)

[Scope of utility model registration request] In a sliding rotation mechanism for a seat, an upper frame is rotatably mounted on a lower frame, a lower sliding rail is laid on the upper frame, and an upper sliding frame is slidably mounted on the lower sliding rail, The lower frame and the upper frame are provided with locking holes that can overlap each other, and the upper frame is rotatably attached to the engaging claw that engages with the locking hole. A rotary rod is rotatably attached to the underside of the seat, and a transmission plate is extended from the rotation rod, so that when the seat is located in the center of the sliding range, the transmission plate touches the engagement claw. A sliding and rotating mechanism for a seat, characterized in that it comes into contact with a plate.