JPS5822011A - Lock cooperating mechanism of rotary seat - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention provides a lock interlocking mechanism for a rotating seat, and more specifically, only when the backrest of the seat is pushed forward can the locking mechanism of the rotating seat be released and the seat rotated. 1! During the rotation, the backrest part can be returned to a predetermined position to stand up! Regarding the lock interlock mechanism of the rotating seat that does not exist.

A swivel seat has the advantage that its orientation can be changed in a predetermined direction, and it can also be locked in its predetermined position. By the way, conventionally.

In this way, a device has been developed that locks in a predetermined position and allows you to rotate the nine seats by tilting the backrest of one seat forward, which releases the lock and allows you to rotate the seat. However, its structure was relatively complicated, and in addition, during rotation, the large back 4 and 49 parts may move forward into a predetermined position, making it difficult to install in a narrow space such as in a car. In the case of a swivel seat, the upright backrest part collides with the surroundings.

The purpose of the present invention is to solve the above-mentioned drawbacks of the conventional technology, and only when the backrest is pushed forward can it be unlocked and rotated, and the backrest does not return to its original upright position during rotation. K provides a lock interlocking mechanism for a rotating seat with a simple structure.

The present invention will be explained below with reference to illustrated embodiments.

The rotating seat to which the lock interlocking mechanism of the present invention is applied, shown in FIG. is installed. An arm 5 extends upward from the reclining device 4, and the upper portion of the arm 5 is attached to the adhesive surface of the backrest portion 3. Here, numeral 6 is the operating lever of the reclining device 4. 10), ←) is a perspective view showing the lock interlocking mechanism of the present invention applied to the rotating seat shown in FIG.

A seat frame 7 on which the seat 1 of the rotary seat shown in FIG. 1 is placed is indicated by a chain double-dashed line. The operating handle 8 has the operating handle 2 attached to its tip.

The seat part 7 extends under the frame 7 with a groove in the middle, and its rear end is bent upward and inserted into a hole 91 formed at one end of the rotary lever 9. The center of the rotary lever 9 is rotatably supported by a support shaft 10, and the lower end of a p-shaped rod 11 formed in an inverted shape is inserted into a hole 9b formed at the other end. After passing through a hole 11a formed in the base plate 12, the rightwardly extending tip of the lock rod 11 comes into contact with the lower end Vc of the arm 5 in the state shown in FIG.

The arm δ has its lower end attached to the pace plate 12 and is rotatably supported by the front rotation shaft 13. A reclining mechanism (not shown) is provided at the lower end of the arm 5, and the backrest portion 3 is reclined by this mechanism.

A ring-shaped guide plate 15 is disposed on the base plate 14 at the lower part of the frame 7 of the seat portion 7 . Guide plate 15Fi
On this! When the RIB frame γ is placed, it guides its rotation, and the seat 1111 can rotate on it from this K. Fi, a pair of lock holes 161116b on both the left and right sides of the guide plate 15:
17al17b is formed. This is the lock claw 18a of the lock piece 18 that is integrally attached to the operating red 8.

Lock hole 1g''*16b: 17''*17b]-812 for fitting 18b to prevent rotation of the seat
When the seat is facing forward and the locking claws 18M and 18b are in the locking holes 17m and 18b are in the position shown in FIG.
, 17bK in the fitted state, the seat faces the opposite direction to the rear. In addition, in one or more configurations, the operating lever 8 is moved by the arrow 1 by biasing means such as a spring (not shown).
As shown at 9, it is biased to rotate clockwise. In addition, the downwardly bent portion of the lock rod 11 is
It is formed in the seat frame 7 etc. and is inserted into the friend guide hole 20.

Movement in the left and right directions is guided.

The lock interlocking mechanism 111 for a rotating seat, which is an embodiment of the present invention, is configured as described above. Next, the operation will be explained with reference to FIGS. 1 to 3.

When the backrest 3 is in an upright state as shown in Figures 111 and 2-), the right end of the locking rod 11 is
In detail, as shown in Figure 3 (1) K, the arm 5 contacts the lower end of the arm 5 and cannot extend to the right. determined,
A stone whose longitudinal direction is located immediately in the front-back direction. Then, the claws 181° 18b of the lock pieces 18 scattered on the operating rod 8 align with the lock holes 16&, 16bK formed in the guide plate 15, so that the seat faces forward *tt and is locked. . In this state, the operating handle 2 is rotated counterclockwise, that is, in Fig. 2-).
, even if you try to rotate in the opposite direction to arrow 19,
The right end of the lock rod 11 comes into contact with the lower end of the arm 5 and does not operate. Therefore, you can't rotate the seat by book.

To rotate the seat locked in this way, push the backrest 1 forward and move the arm 5 as shown in Figure 2#))K
As shown, it is rotated forward about the first rotation axis 13 and tilted. Thereafter, the operating handle 2 is rotated counterclockwise as shown by the arrow 21 in Fig. 2 (I)K. In this case, the arm 5 is tilted forward and the right end of the lock rod 11 is not obstructed by the lower end wAK of the arm 5, so the operating rod 8 can be rotated by the operating handle 2 toward the customer 1 and The rear end portion bent upward is inclined to the left as shown in Fig. 2 (←) and Fig. 3 (b) K. As a result, the rotating lever 9 rotates counterclockwise around the support shaft 10, and the other end of the lever 9 pushes the lock rod 11 to the right, and the right end of the lock rod 11 is rotated counterclockwise. Right side of 12-
stand out. In this way, when the operating rod 8 rotates, the lock piece 1 that is integrally attached to the rod 8
B also rotates together, and its lock claw 1811.18b is
As shown in FIG. 3), it is removed from the lock hole 16J1.16b. The seat is then guided by the guide plate 15 and becomes rotatable. When the seat is being rotated, even if the operation shown in the arrow 21 direction of the operating handle 2 is stopped, the lock claw 1211.18b remains in ghost contact with the outer circumferential wall of the guide plate 15 and slides due to the aforementioned biasing means (not shown). The rotating lever 9 and the locking rod 11 are moved as shown in Fig.
Or, maintain the state shown in Figure 3←) and attach the base plate 1.
The right end of the lock rod 11 passing through the arm 5. In other words, the backrest portion 1 is prevented from returning to its original upright position. Then, in the state tt in which the backrest portion 1 is tilted forward, the locking claws 1g, 1.18b rotate while sliding on the outer peripheral wall of the guide plate 15, and the locking claws 1ga, 18b are rotated.
is on guide plate 15 oay 17m.

17b, the lock pawl 181.18b is fitted into the lock hole 17''*171)K, and the operating rod 8 is rotated in the direction of arrow υ 190 by the force of a biasing spring (not shown). As a result, the rotary lever 9 is the second II (II) K
As shown, return to the original position and straighten parallel to the front-back direction] and pull the ivy rod 11 inward. Therefore, the right end of the locking rod 11, which was protruding from the center of the base plate 12 as shown in Figure 2) and Figure 3-), is retracted and returns to the state shown in Figure 2-) and Figure 3←). . F in this state! ,
Since the arm 5 and the backrest tLIIl are not blocked by the right end of the lock rod 11, they return to the original standing position KJ! can be done.

The lock interlocking mechanism of the rotating seat which is another embodiment of the present invention shown in FIG. 4) is shown in FIGS.
), 2) In place of the rotary lever 90 in the mechanism shown in ), a locking member 24 having a hole 24m into which the lower end of the locking rod 11 is directly fitted is attached to the rear end of the operating rod 23, whereby the operating rod 23 and This operating rod 2
A lock piece 250, which is integrally attached to the seat 3, is prevented from rotating, and is fitted around the guide plate 26 to prevent the seat from rotating.

Then, in the same manner as described above, when the arm 5 is pushed forward, the lock piece 2B is released from the lock notch 1127 of the guide plate 26 by the operating handle 27, and the seat cannot be rotated. Moat 9, while rotating, lock rod 1
The right end portion of the arm 5 and the backrest portion 1 are prevented from returning to the original upright state from the forward position.

In the embodiment shown in FIG. 4-)K above, the locking member 24
In order to smoothly move the 241-ft thick rod 11, the long hole may be formed diagonally in accordance with the locus of movement of the thick rod 11.

A lock interlocking mechanism for a rotating seat, which is another embodiment of the present invention shown in FIG. The central part of this operating member 29 is supported by a support shaft 30 so as to be rotatable in the horizontal direction, and a lock rod 1 is provided at the rear end.
A hole 29m into which 1 is fitted is formed. When the arm 5 is pushed forward, the operation handle 31
Rotate the operating member 29 around the support shaft 30 in the direction of the hour hand, and insert the lock piece 32 into the lock notch 3 of the guide plate 33.
I left from 4 and am in K so that I can rotate my seat. Also in this case, during rotation, the right end portion of the lock rod 11 presses the backrest portion 1 so that it does not return from the forward-tilted state to the original upright state.

The fifth factors (Jl) to (C) are a plan view of a rotating unit for a rotating seat to which the lock interlocking mechanism of the present invention is applied, respectively;
They are a sectional view and a side view. This rotating unit is the lowest tj
A lK fixed group *SO is provided. The fixed substrate 50 is
A circular hole 501 is formed in the center, and the periphery of this hole Sol is raised in a ring shape to form an outer periphery inside 6ob. This outer circumferential circle 1150bK is in slidable contact with the inner circumferential circular portion 51 of the ring-shaped rotation support member s1. The outer periphery inside 51b of the rotation support member 51,
A plurality of bearing balls 53 are distributed at equal intervals and support the one-rotation support member 51 from below. -Plate support member s
Outside of 1 II KFis Q ring-shaped holding members 52 are fixed to the fixed substrate 5° KIi by a plurality of bolts 54, and a plurality of holding members 52 are formed at equal intervals near the circumference of this holding part'#520. The lower end of the rotary support mwsxo is in contact with the upper surface of the rotary support W material 51 from above. The outer part of the presser member 520 and the inner part are respectively folded upward and extend outward. S
2bTh! It forms 16m11s521 inside. - At the top of the transfer unit, there is a circular hole 5S in the center.
The optical rotating board 55 is arranged to form the above hole asa.
A raised ring-shaped protrusion 55 is formed around oi+e. The outer side of the protrusion 55 is integrally connected to the rotary support member 51 disposed below at equal intervals by a plurality of poles 86 via spacers 58. In Figure 5), a bracket 5B is attached to the lower part 11 of the rotating board 55 by a platen 5HC, and an operating rod 60 having an operating handle 59 at the tip is rotatably attached to this platen 58. . Further, a lock piece 61 is integrally attached to the operating rod 80, and a lock hole 61m formed in the lock piece 61 is provided.
is the locking piece 5 formed on the outside 16111152b of the presser member 52! dK is engaged. 60 operating rod companies,
The lock piece 61 is inserted into the hole 6 by the torsion spring 62.
1 m is biased to rotate in the direction of engagement with the locking piece 524.

The rotation unit configured in this manner connects the lock rod 11 and the like mentioned above to the right end of the operating roller 0. Then, a seat frame and a seat are placed on this rotating base knit to form a rotating seat. K, who operates this rotating unit, first rotates the operating handle 59 counterclockwise to disengage the locking hole 611 and the locking piece S2d. Then, the rotation support member s1 supporting the rotation board 55 is supported by the bearing ball 53, is pressed from above by the lower end of the protrusion 52 of the holding member 52, and further rotates by the outer circle m150bK of the fixed board 5o. The rotary board 15 rotates while being guided by the inner part 51m1 of the support member 510. In this case, if the operating handle 59 is turned during rotation, the lock piece 61F! (Twist) The outer periphery 111152b of the presser member 52 returns due to the biasing elasticity of the spring 62.
It still touches the top and rotates while sliding. The locking piece 61 is formed with a locking hole e1m formed on the outer #llll1 portion 52b, and the locking piece 52dK is engaged with the groove to rotate.

Locking piece! In $2 (1, above 5!!!Qe), it is formed in two places, the lower part and the upper part, and this allows the seat to face both the front and the rear. There is.

As explained above, according to the present invention, the operation of the lock rod is controlled according to the operating state of the arm that rotatably supports the backrest, and the locking rod is operated only when the backrest is not in the forward position. If the handle does not work and it turns into a -rotation state, you will not be able to return the 4 backrests midway through the rotation.
During rotation, the backrest returns to its original position, preventing it from colliding with surrounding obstacles, which is convenient for operation, and has a simple structure.

[Brief explanation of drawings]

l1lEl! ! 1IFi is a perspective view of an optical rotating seat to which the lock interlocking mechanism of the present invention is applied. Figures 2e) and φ) are perspective views showing the operating mode of the SEC interlocking mechanism, which is applied to the rotating seat of Figure 1 and shows an embodiment of the present invention, respectively; Figures 3-) and #) are Front WJ% Figure 4 shows the operation mode of the lock interlocking mechanism in Fig. 2-) and #), respectively.
#i is a perspective view of a lock interlocking mechanism showing another embodiment of the present invention. They are a plan view, a cross-sectional view, and a side view of the rotating effect. 1... Seat %2.59... Operation handle, 3...
Backrest, 5... Arm, 7... Seat frame,
8.23゜60... Operating rod, 9... Rotating lever, 11... Lock rod, 12... Pacer ν-), 1
B-...Rotation axis, 15゜26.93...Guide plate%
TSA, ISB, IY Maro. 17b...Lock hole, 1B...Four pieces, 18m,
18b...Lock claw, 24...Four-piece member, 25.
・Lock piece. Applicant Ikeda San Co., Ltd. Agent Patent Attorney Masu 1) Takeo

Claims (1)

[Claims] l. An arm rotatably supports the backrest, a locking rod whose one end contacts the arm to prevent operation when the backrest is not in the forward position; an operating member that is connected to the arm and is prevented from operating when one end of the lock rod is in contact with the arm; and a locking member that is scattered around the operating member and that prevents rotation of the seat. and an operating knob for operating the operating member,
At 9 o'clock when the backrest is tilted forward and the arm is tilted forward, the locking rod is released from being blocked, and the operating knob is actuated to prevent the rotation of the seat by the locking means. A lock interlocking mechanism for a rotating seat, characterized in that the seat is rotated by m and the arm is maintained in a forward tilted state by one end of the ivy rod to prevent the backrest from returning.