JPS5812841A - Seat lifter - Google Patents

Abstract

PURPOSE:To improve the operability and operate smoothly by sliding one end of two link members in long holes provided on a rotary member and a stationary member respectively. CONSTITUTION:One end of a rotary member 32 fixed to a seat frame is pivoted on one end of a stationary member 31. One end of the first link member 33 is pivoted on the lower end of the rotary member 32, and one end of the second link member 44 is pivoted on the middle of the first link member 33. A lock pin 48 fitted to the other end of the second link member 44 is inserted into a long hole 49 of the rotary member 32, and a lock plate 50 with a plurality of grooves to be coupled with the lock pin 48 is fitted to the rotary member 33. A pin 40 to be fitted to the other end of the first link member 33 is inserted into a long hole 38. The lock pin 48 and the pin 40 at the other end of the first link member 33 slide in the long holes 49, 38, and the lock pin 48 is selectively coupled with a groove of the lock plate 50, thus adjusting the seat height.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seat rear device that adjusts the inclination angle of the seat by raising and lowering the front end or rear end of the seat, and a seat rear device that raises and lowers the entire seat. It is something.

Conventional devices for raising and lowering the front end or rear end of lls include:
For example, devices as shown in FIGS. 181 to 3 are known. This conventional device is designed to raise and lower the rear end portion of the seat 92 of the automobile seat l. In Figure 47, the legs j a j &- fixed to the problem of the automobile body.
The rail 6 is fixed, and the slide rail 7 is attached to this rail B.
is slidably attached to this slide rail 7, and a bracket l is attached to this slide rail 7.

9 are fixed, and a placket (#/2) of the seat frame 10 is rotatably attached to these brackets 9. Then, the seat frame lO&: the cushion material is placed and the seat portion λ is *at.

ing. A seat back 3 is attached to the rear end of this seat portion 2 by a reclining machine 1/J.

The movements of the seat l include the longitudinal movement of the seat l shown by the arrow M in FIG. 1, and the movement of the seat back 3 shown by the arrow 1.
There are forward and backward tilting movements, and lifting and lowering movements of the rear end portion of the seat portion 2 as indicated by arrow 0. The device for raising and lowering the rear end of the seat 1IS2 is a lifter device shown in FIGS. 2 and 3. The lifter device shown as this conventional example raises and lowers the m-th rear end by raising and lowering a bracket 12 fixed to the bottom of the rear side of the seat 7 frame 10.

As is clear from FIG. 2, the brackets 12 are fixed one each on the left and right sides of the seat frame 10, have a channel shape, and have bottles lψ attached to the opposing pieces /2L and /2%. A pair of left and right slide rails 7 are provided, and an operating shaft tS is rotatably attached to the opening of brackets 9, 9 fixed to am of these slide rails 7.7. A set of cam plates 16 are attached to this operating shaft tS.
These cam plates 16 are fitted with elongated holes 17,
The bottle/4' is inserted into these long holes 17.

Further, a lever 118' is fixed to one end of the operating shaft /j,
By operating this lever /l, the operating shaft 15 is rotated, and as the operating shaft /j is rotated, the cam &/4 is also rotated. When the cam plate 16 rotates around the operating shaft 15, the elongated hole 17
The position of the bottle l in the elongated hole 17 changes by tTt. When this bin /44 is at a distance of 1111 from the operating axis /3, when the distance is the same and when it is at the same distance H1, the height of the top of the bin is different. That is, &1-s 11. as shown in FIG. When there is a relationship of <k<H,
The height of the top surface of the bracket 12 decreases in the order of 4→-→Peng. This means that - the bracket 12 is connected to the seat frame 10.
Since it is fixed to means.

The conventional gluing device clearly shown in FIGS. 2 and 3 is as follows:
Although the rear end side of the seat a2 is intended to be raised and lowered, if this device is provided on the front end side of the seat part A2, the front end side of the seat part A2 can also be raised and lowered.

The disadvantages of the conventional devices shown in Figs. 1 to 3 are that they lack smooth operation, require precision in the shape of the force plate 17 and the shape of the elongated hole 17, and the manufacturing of the cam plate 17. was difficult.

The present invention was made in order to eliminate such drawbacks of the conventional example, and has excellent operability and can perform one operation smoothly.
Another object of the present invention is to provide a seat seventer device that is easy to manufacture and assemble.

In addition, the sheet glue lid, which is another invention of the present application,
As a conventional example of the device, there is a device shown in the engraving diagram and FIG. 2
0 and the upper and lower bases 0 and 1, and a large link 1 installed between the upper and lower bases 0 and 1, and the same base 0. / and a hydraulic cylinder 22 installed between the cylinder and the cylinder.

This conventional device operates a hydraulic cylinder 22 to change the distance between the upper base 20 and the lower base 1, thereby adjusting the height of the seat 1. Since this conventional device uses a hydraulic cylinder 22, the device becomes large and
It also has the disadvantage of being expensive.

The second invention of the present application was made in order to eliminate the drawbacks of such conventional devices, and provides a sheet glue lid device that has a compact mechanism, can be provided at low cost, and has excellent operability. Hereinafter, preferred embodiments of the present invention will be explained based on the following drawings. Reference numerals 1 to 7 in FIG. 6 are the same members as those in the device of FIG. Yes, each shows the seat, seating area, seat pack, floor, legs, rail, and slide rail.

A slider device 130 for raising and lowering the front end of the seat λ is provided between the slide rail 7 and the bottom surface of the seat λ. The gluer device 30 of this embodiment has a pair of left and right fixing members 3/, 31 and 1 fixed to the upper surface of the slide rail 7 by means such as bolts, nuts, or welding. It has a rotating member 32.32 which is rotatably attached to and positioned on the fixed member 3/, Jl, and a first link member J3t 33 which lifts up the front ends of these rotating members 32.32. are doing. Fixed member 3
1 consists of a long channel-shaped object with a hole 3 on the side of the rear end.
The hole 36 of the bracket 3j, which has a groove and is fixed to the bottom surface of the rear end of the rotating member 32, is aligned with this hole 34I, and these holes are wide.

The has member 32 is rotatably attached to the fixing member 31 by inserting a bottle 37 into the member 36 . Further, a long hole 3g is formed in the @ surface of the front end of the fixing member 31,
1. A bottle 〇 is inserted into the hole 39 of the lifting member 33 in alignment with the hole 39.

The first link member 33 is attached to the lower surface of the rotating member 32 by attaching the rear end side of the first link member 33 to the channel-shaped bracket l, which is identified so as to straddle the three rotating members, via the bottle lI2. The second link member 4I is rotatably attached to the first link member 33 by a pin 113 approximately in the middle of the longitudinal direction of the second link member 33! Hiroshi is attached so that it can rotate. [σ] A shaft q5 is attached between a pair of left and right second link members p+, p<t. This axis φj is −(neq
Being pulled backwards by Party B. This spring rod 6 is attached to a fixed shaft rod 7 attached to the rear II of the rotating members 32, 3λ.

As shown in the J[i6, both ends of the axis lj C+i-2&
The second link member Hirohiro and Hirosan are attached, and this shaft da S
Lock bin 4 is installed on the outside of the second link member Hiroda, III.
111, 111 are installed, and these sick bin FJ
, $1r is inserted into a long hole 4I9 bored in the rotating member 32, 32.

Said lock bin 4! , r, pg into which the groove St of the lock plate 50 fits. This lock plate jO is fixed to the operating rod 1) and rotates together with the operating rod j2, as shown in FIG. It is now possible. The operating lever j2 is rotatably supported by a bracket 33*j3 and attached to the upper part of the rotating member 32, and this operating lever j
A lever jl is fixed near one end of the lever 52, and a spring jj is attached to one end of the operating rod 52.
& It is biased in the direction you are trying to move.

In principle, the lifter device 30 shown in FIGS. 6#4 to 9 described above has a fixing member 31 and a rotating member 32 pivotally connected by a pin 37 at their rear end sides, as shown in FIG. 10. The rotating member 32 rotates up and down within a certain angular range using the bin 37 as a rotational fulcrum. This rotating member 32
What determines the rotation range of the II/link member 3 is attached to the fixed member 31 so that one end is pivotally connected to the rotating member 32 and the other end slides within the elongated hole 31 of the fixed member 31.
3, and a second link member whose one end is pivotally attached to the middle of the first link member 33 in the longitudinal direction and whose other end is attached to slide within the long hole 9 of the surrounding member 32. It is.

Next, to explain the operation of this seat lifter, when the lever S da shown in FIG. Groove 1/ comes off from lock bin at. When the lock bin 4It is released from the lock plate 3o, this thick bin 41
The shaft 44s to which the lock pin 8 is attached is pulled by the tensile force of the spring Vt, and the lock bin 8 opens into the elongated hole 4! ? Slide the inside towards the cloth side in Figure 9. Lockbin Hirol is the 9th in long hole 19
When sliding in the cloth direction in the figure, the second link member 1l
II causes the other end of the I/link member 33 to retreat within the elongated hole 31, raising one end of the first link member 33, and as a result, the tip of the rotating member 32 rises. In this situation, if you release the lever jII, the operation lever will be activated! 2 is rotated by the force of a spring jS, and the groove St of the lock plate jO is
Even if a human body load is applied to the rotating member 32, the lock plate SO prevents the lock pin 44J from moving forward in the elongated hole 9. By positioning the lock bin IIl in any of the three grooves j/ of this a-tuck plate jO, the height of the front end of the rotating member 32 can be changed, that is, the height of the front end of the seat part 2 can be changed. O In the above-mentioned embodiment, the front end of the seat part 2 of the seat 1 is raised and lowered, but in order to raise and lower the rear end of the seat part 2, the front and back of the lifter device 30 shown in FIG. 7 are reversed. Just make it . Further, the rotating member 32 having the tll/link member 33 and the four-piece plate jO shown in FIG. 7 is disposed on the lower side, and the fixed member 31 is disposed on the upper side, and as a result, the fixed member 31 shown in FIG. The front end can also be raised and lowered. That is, as shown in FIG. 1, the fixed member shown in FIG. 7 becomes the rotating member 32, and the rotating member shown in FIG. 7 becomes the fixed member 31. In the embodiment shown in No. 1/G, one end of the rotating member 32, 32 fixed to the frame 10 itself of the seat portion λ of the seat l or the lower side of this frame 10 is connected to one end of the identifying member 3/, one end of 3/ : Rotatably attached, the first link member 33.
One end of 33 is rotatably attached. One end of the second link member 33, 33 is rotatably attached to approximately the middle of the first link member 33, 33 in the longitudinal direction, and the other end of the second link member 33, 33 is attached to the other end of the second link member 33, 33 in the longitudinal direction. The lock bin Hiroshi J, 44J is inserted into the long hole lI drilled in the fixing member 3/, 3/? , + (same as the one shown in the *D figure) is slidably inserted, and this lock pin <4J.

A lock plate jO having a plurality of grooves St that engages and disengages from at least one of the links is attached to the lower side of the fixed member 31, and the bins ao and tio attached to the other ends of the first link members 33 and 33 are rotated. The member 32 is slidably inserted into an elongated hole 31.31 bored in the member 32.

Next, regarding the second invention of the present application, m
Explain based on the surface. This invention is basically used in the first invention and uses two lid devices 30 at the front and rear so that the front, rear, and entire seat portion λ of the seat l can be selectively raised and lowered. It is something. 12th WJ and 1st
In Figure 3, a channel-shaped co-moving member 32.32 has holes 34I on both end sides.

Three holes and long holes 31 and 31 are formed. Fixed members J/, l/ are arranged below these rotating members 32, 3, and two first link members 33.33g33 are provided at the front and rear parts of each of these fixed members J/, 3/. .33 is installed. These first link members 3! , 3J:3
3,33 is bracket 4! l.

4! It is rotatably mounted on the fixing members 3/, 3/ by means of 1, 1, and 1. One layer of the second link member 1III is rotatably attached to approximately the middle in the longitudinal direction of the first link member 33, and a lock pin 411 inserted into the long hole lI9 of the fixing member 31 is attached to the other end of the second link member 1III. installed. The other three Jl/link members 33 are similarly configured: #l, and a shaft 41j coaxial with the lock bin 447 is attached between the second link members 4I and 4I facing each other. This shaft lIj is bent forward and backward, and the two shafts Hiroj and Hiroj are constantly pulled inward by springs 4'4, 4I, and iG, respectively. Further, a hole 39 bored at the free end of the first link member 33 and a hole 34I of the rotation member 32 are provided.
The pin 37 and the long hole 31 are aligned, and the 4IO
The first link member 33 is rotatably attached to the fixed member 32&:. A lock plate jO having a plurality of grooves j/ that engages and disengages from the lock bin 4!2 is attached to the fixing member 31. Other members similar to those in the embodiment shown in FIG. 7 are designated by the same reference numerals, and their explanations will be omitted.

In order to operate the embodiment equipped with two lever devices at the front and rear, first, in order to operate the cloth hand lever device shown in FIG. Remove from. When the lock plate jO is separated from the lock bin at, the lock bin 411 moves in the long hole lI9 of the fixing member 31 in the left direction in the drawing in conjunction with the shaft j being pulled in the left direction in the drawing by the spring 6. At this time, when the lock pin at is in the middle of the long hole 9, if the lock plate jo is returned and the groove 21 is engaged with the lock pin IIl again, the first lock member 33 is moved as indicated by the reference numeral 33k in FIG. When the lock pin IIl is held at the same height and the locking plate sO is returned to the left end of the long hole 9, the first link member 33 is moved to the first
It is held at the height shown in the powder number jJB in Figure 3. Then t
When operating the lifter device on the left hand side in Figure Ih13, pull down the lever on the left hand, and use the tension of the spring force to move the lock bin +2 through the long hole 4'? move the first link member 33 to the right in the 13vA, engage the tatsukbin at and the four-piece plate jo at a desired position, and move the first link member 33 to the 13vA middle code 33x
.

Hold at a height of 33Y. At this time, when the t-th link member changes its height position to 33x, z3r, the bottle 4IO inserted into the end of the first link member 33 has a length that is drilled in the rotating member 32. Move inside the hole 31 toward the right. If both the rotor devices are activated and raised to the maximum extent, the rotating member 32 will rise to the position 32m in FIG. A pin and a lock plate were provided on the side, and the first link member 330** was changed. In other words, the fixing member 31 is fixed on the slide rail 7 by fixing one piece consisting of a 0-shaped piece with a hole 3II bored therein and the other one consisting of a 0-shaped piece having a long hole 31 bored therein. , a plate-shaped plate 2 is attached on both sides of the fixing member 31 consisting of a 0-shaped piece in which the hole 3 is bored.
One end of the plates /33°/33 is rotatably attached to the pin j6, and these plates /33. /33 is one of the first link members 33. Fixing member 3/f consisting of the υ-shaped piece with the elongated hole 31:) Attach one end of the two plate-like plates 233, 233 on both sides to the pin j7 with the same 33.
Bin the other ends of 33! It is attached so that it can be rotated with l.

Also, lock bins 4 are attached to the retainers 9 near both ends of the 3 rotating members.
I7 and lIJ are inserted.

Further, frames sq and sno are attached between the respective ends of the two rotating members 32, 32, and the two rotating members 32, 32 and the two frames 5 are attached.

J9 and square seat frame ^10t! has been completed.

The rest of the configuration is the same as that of the embodiment shown in FIG. 12, so the explanation will be omitted. Further, the operation of this seat 2 lifter is basically the same as the embodiment shown in FIG. 12. Although the spring 6 is attached between the shafts s and tts, two springs 6 may be used so as to act independently on the shafts j and ts as in FIG. 12.

Using two spring rods 6 provides better operability.

As explained above, in the first invention, Wj of sheet /
One end of a rotating member 32 fixed to the 7-frame lO of AR2 itself or the lower surface of this frame 10 is rotatably attached to one end of a fixed member 31, and a first link member 33 is attached between these members 3/32. And the second link member 4! The lower side of the other three ends of the rotating member 32 (or the upper side of the fixed member 31) k: One end of the rotating member is attached so as to be rotatable. ! One end of the S-link member is rotatably attached to the middle of the l-link member 33, and a pin 4co is attached to the other end of the @/ link member 33.
This pin lIO is slidably inserted into the elongated hole 31i provided in the fixing member 3/C or the rotating member 32'). A p-tsukubin daza is attached to the other end of the second link member I/-hiro, and this lock-bin pzt rotation member 3
(or fixing member J/) &: It is slidably inserted into the drilled elongated hole q9. And this lock bin 4I
A rope plate jO having a groove jl for engaging and disengaging Ik is attached to the rotating member 32 (or fixed member j/). Therefore, by operating the lock plate s (to disengage the groove St from the opening 4 or 5 and lifting or pushing down the other end of the surrounding member 32, the lock pin at will slide within the long hole data, Along with this, the first and second link members 33.4
c4! operates, and the other end of the cooperating member 3λ can be easily raised and lowered. In order to hold the other end of the rotating member 32 at a desired height, a lock bin S and a lock are required.In addition, in this first invention, since the structure is as described above, strict precision is not required for the parts. It is also easy to assemble. Roughly connect the second link member to which the lock bin is attached to the end of the rotating member (
(other end) is always biased in the direction of raising the lock pin, unless the lock pin and the groove of the lock plate are secured, and if no load is applied to the seat from above, this biasing force will cause the rotation. Since the end of the member automatically rises, the operability is even better.

The second invention has a rotating member 32 that is fixed to the frame 10 itself of the seat 2 of the seat 2 or this frame 1Ok, and a fixing member 31 that is disposed opposite to each other under the three rotating members. One end is attached to the fixed member 31 and the other end is attached to the rotating member 32 on the front end, side and rear end sides of the bolts of both members 3/, 32.
First link members JJ and JJ are provided, respectively, and are rotatably attached to the first link members JJ and JJ. These first link members 33 and 33 (it is convenient if one is provided at both the left and right ends of both sides, but it is sufficient if at least two are provided, one at each of the front and rear ends), respectively, a second link member q4I, One end of Suhiro is rotatably attached, and a lock bin 4 is attached to the other end of each of the second link members pp and p+. J, 4'J are installed, and long holes are drilled in these lock bins <11.1IlttIil fixed member J/ (or rotating member 32). , 4! ? 0 first link member 33, which is slidably inserted into the
One end of the Buddha fixing member J/
(or when the other end is attached 1111! iIS material 32)
The first hole is located in the long hole 9 drilled on the front end side (or rear end side) of the
A bin ψO attached to the link member 33 is slidably inserted therethrough, and the lock bins pg and rig are adapted to engage and disengage from the grooves 3/ and 3/ of the viewing ivy plate jO2SO, respectively.

Therefore, in this invention, the front, rear, or entire seat portion can be raised and lowered selectively.

In addition, in the second invention, if a spring is provided between the front and rear lock pins to bias them toward each other, when the lock pin and the groove of the lock plate are released from each other, the front, rear, or entire rotating member can be The seat lifter automatically raises to provide better operability. moreover,
One end of the first link members provided between the rotating member and the fixed member and on the front end side and the rear end side of these members is rotatably attached approximately at the center in the longitudinal direction of the rotating member or the fixed member. In this case, the number of parts can be reduced and the interlocking between the front and rear parts can be improved.

[Brief explanation of the drawing]

Figures 1 to 3 each show a conventional seat lifter, and Figure 1 shows a seat lifter for raising and lowering the rear end of the seat.
FIG. 2 is a side view of a seat equipped with a lifter device shown in FIG. Figure 3 is a raw salt diagram of the device shown in Figure 2, Figure 3 is a partial cross-sectional side view of the device in which the entire seat is raised and lowered using a hydraulic cylinder, and Figure 3 is Figure μ. Figure 6 and the following figures show embodiments of the present invention, Figure 14 is a side view of the whole, Figure 7 is an exploded perspective view of essential parts in the embodiment of the first invention, Figure J
E is a front view of the shaft, lock bin, second link member, and bin assembled, FIG. 9 is a side view of only the part showing the relationship between the lock bin and the lock plate, and 1m70 is a diagram of the embodiment of the first invention. 11 is an exploded perspective view of main parts showing another embodiment of the first invention, FIG. 12 is an exploded perspective view of main parts showing an embodiment of the second invention, and FIG. 13 is an exploded perspective view of main parts showing another embodiment of the first invention. Fig. 12 is a view from the direction of the arrow, Fig. 14' is a plan view of the main part showing another embodiment of the second invention, Fig. 15 is a left side view of Fig. 11, and Fig. 16 is Fig. 411. FIG. l... Seat, Co... Seat W1%10... Frame, 30... Lifter device, 31... Intermediate member,
32...Rotating member, 33. First link member, 3g
...long hole, Ilo...bin, ≠4! ...Second link member, reference g...p pin, Hiro9...long hole, jO
...Ptsuku plate, 51...groove. Applicant Ikegawa Bussan Co., Ltd. Agent Patent Attorney Masu 1) Takeo No. 1 I rXJ Figure 12

Claims (1)

[Claims] t. The frame itself of the seat portion of the seat or one end of a rotating member fixed to this frame is rotatably attached to one end of a fixed member, and the rotating member is attached below the rotating member or above the fixed member. A first link member is rotatably attached to one end of the first link member, a second link member is rotatably attached to one end of the second link member in the middle in the longitudinal direction of the first link member, and one end of the second link member is rotatably attached to the other end of the second link member. A locking pin is slidably inserted into a long hole drilled in the rotating member or the fixed member, and a locking plate having a plurality of grooves that engages and disengages from the locking pin is attached to the rotating member or the fixed member, - the first link. A bin attached to the other end of the member is slidably inserted into a long hole drilled in the fixed member or the rotating member, and the lock bin and the first
A seat lifter characterized in that the other end of the link member slides in long holes formed in the rotating member and the fixed member, respectively, to raise and lower the front end or the rear end of the seat seat. 2. The seat lifter according to claim 1, wherein the second link member to which the #2 locking pin is attached is always urged in a direction that raises the end of the rotating member. 3. It has the frame itself of the knitted part of the sheet or a rotating member fixed to this frame, and a fixed member arranged oppositely under the rotating member, and one end is provided on the front end side and the rear end side between these two members. A first link member having the other end rotatably attached to a rotating member is provided on a fixed member, one end of a second link member is rotatably attached to each of these first link members, and the first link member is rotatably attached to the first link member. A lock plate having a plurality of grooves that attach lock bins to the other ends of each of the two link members, slide the lock bins into elongated holes drilled in the identification member or the rotating member, and engage and disengage the lock bins. Attach the first link member to the rotating member or the fixed member. One of both ends of the first link member marked #1 is inserted into the long hole bored in the front end or rear end side of the fixed member or the rotating member to which the first link member is attached. A seat lifter characterized in that a bin attached to a link member is slidably inserted, and the bin and the lock bin slide in an elongated hole to raise the front end, the rear end, or both ends of the seat seat. The seat lifter according to claim 3, characterized in that a spring is provided between the front and rear lock bins to bias them toward each other. Left: One end of the first link member provided between the rotating member and the fixed member and on the front end side and the rear end side of these members is rotated at approximately the center in the longitudinal direction of the rotating member or the identification member. Claim 3, characterized in that it is movably mounted.
The seat lifter described in Section 1 or Reference Section.