JPS61144413A - Seat cushion fixing device - 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 Field of the Invention The present invention relates to a seat cushion fixing device used for fixing a seat cushion to a vehicle floor.

Conventional technology As a conventional seat cushion fixing device,
-40026, Utility Model No. 57-83030, Utility Model Kai No. 5
A product disclosed in Japanese Patent No. 7-83029 has been proposed, and while following the conventional technology, it is integrally molded with synthetic resin for ease of molding, and is shown in FIGS. 3 to 6. Things are being put into practice. That is, this seat cushion fixing device includes a fixing device main body l and a housing 2.
It is composed of two members, and both members 1 and 2 are integrally molded with a suitable resin. A handle portion 3 is provided on one end side of the fixing device main body 1, and the handle portion 3 is provided with an insurance matching hole 3a.

Moreover, this handle part 3 is connected to an intermediate part 4 via a first hinge part 5.
The intermediate portion 4 includes a pair of raised protrusions 6.6 formed on both side edges, and an open lower portion provided between the protrusions 6.6. Further, in the intermediate portion 4, a second
A substrate portion 9 is connected to the base plate portion 9 via a hinge portion 8 . A substantially U-shaped guide 10 is provided at the end of the substrate portion 9, facing each other.
A protrusion 11.11 is provided near the guide 10.10 and on the back side in FIG. 3(A).
is provided.

In addition, the substrate portion 9 has a substantially T-shaped hole 1 in FIG. 3(A).
2 is provided in the hole 12, one end 13a is fixed to the folded part 91:I for supporting the guide 10 of the base plate part 9, and the other end 13b is the same as the protrusion 6. direction, i.e. the third
In Figure (B), a hook piece 13 protruding leftward is extended, and a plate 14 is integrally installed horizontally at the other end 13b of the hook piece 13.

On the other hand, as shown in FIG. 4, the housing 2 includes a side wall 15 having a semi-elliptical cross section, a bottom portion 16 formed on the lower end side of the side wall 15, and seven flange 17 formed on the upper end side.
Consisting of The bottom portion 16 is provided with a protrusion 20 that engages with a through hole 9a formed in the vicinity of the second hinge portion 8 of the base plate portion 9 of the fixing device main body 1. A through hole 21 for removing the mold is provided in the joint portion. Further, the flange 17 has the guide 10
One engaging rod 22.22 is provided oppositely with a width that allows insertion while being in contact with the inner surface 10a, and a return pawl 23.23 is provided at the tip of the engaging rod η,22. It is formed.

In both members according to the above configuration, the fixing device main body 1
As shown in FIG. 3(c), the handle part 3 and the base plate part 9 are in close proximity to each other around each hinge part 5.8 as indicated by the arrow as'.
5, the handle 3 is loosely inserted between the guides 10, 10, and the protrusion 6 is inserted into the plate 14.
Leave it in contact with the Next, the engaging rod 22 of the housing 2 is inserted between the inner surface 10a of the guide 10 and the side surface 3b of the handle part 3, and the through hole 9a of the fixing device main body 1 is positioned inside the protruding piece 20. Subassembly part 1.2.

On the other hand, as shown in the diagram, there are assembly holes 25 in the vehicle body floor 24.
The automobile seat 26 is provided with a seat cushion frame η that is approximately U when viewed from the left in FIG.
A wire sill, which is a locked body, is fixedly formed in a letter shape.

Therefore, the fixing device main body 1 and the housing 2 sub-assembled as described above are connected to the protrusion 11 of the fixing device main body 1.
The gap between the folded part 9b for supporting the guide 10 of the board part 9 and the retaining part 19 of the housing 2 is connected to the assembly hole 25.
is fitted into the opening edge of the assembly hole 25 (
Figure 6).

When installing the seat, connect the wire 28 (Fig. 6H)
As shown in K, hook 1 hook piece 13 and attach sheet 2.
6 is fixed to a predetermined portion of the vehicle body floor 24.

Further, when removing the sheet, as shown in FIG. 6(B), the fingers of one hand are engaged with the insurance fitting hole 3a, and the handle portion 3 is further pulled toward the front side, that is, in the direction of arrow C. As a result, the protrusion 6 rotates in the same direction about the second hinge part 8, presses the plate 14, and pushes the plate 14 outward from the hole 12.Therefore, the protrusion 6 is molded integrally with the plate 14. The hook piece 13 that is attached leaves the wire 28,
Displaced together with the plate 14, the wire 28 is in a dissociated state. Therefore, if the operator pulls the handle 3 with one hand and lifts the sheet 26 upwards, that is, in the direction of arrow d, with the other hand, the wire elongation is pulled up, and the sheet 26 is lifted up with the other hand.
can be removed from the vehicle body floor 24.

Problems to be Solved by the Invention However, with such conventional devices, as mentioned above, it is necessary to operate the fixing device with one hand while lifting the sheet with the other hand, which makes it difficult to remove the sheet. There is a disadvantage that the burden on the worker during outside work is large and the work cannot be done quickly. In addition, in the above-mentioned device, when the wire clamp and the hook piece 13 are separated, the operator is unable to determine the separation, so even after separation, the handle portion 3 is unnecessarily moved. If the tension is repeated, there is a risk that the handle portion 3 will be torn apart from the first hinge portion 5 due to the pulp.

The present invention has been made in view of this problem with conventional vehicle seat fixing devices, and allows the seat cushion to be lifted with both hands by preventing the fixing device from being reattached when the seat cushion is removed. At the same time, release the fixing device externally! By having a recognizable structure, it is possible to provide a seat cushion fixing device that prevents damage to the device due to unnecessary release operations.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a fixing rod on the lower surface of the seat cushion, which has a small diameter part in the middle and a large diameter part at the tip. On the other hand, a housing member with an upper opening is fitted into a mounting hole provided in the vehicle body floor, and a coil spring is disposed inside the housing member so as to fit outwardly into elastic contact with the small diameter portion of the rod. 1
One end is fixed to the housing member, and an operating piece for releasing the elastic contact is extended from the other end, and the operating piece is temporarily engaged with the housing member, so that the coil spring is connected to the large diameter portion of the rod. A stopper portion is formed to maintain a large diameter state that allows loose insertion.

Therefore, when the seat cushion is attached to the vehicle floor, the coil spring is in resilient contact with the small diameter portion of the fixing rod. At this time, since a large diameter portion is provided at the tip of the rod, the large diameter portion acts to prevent the rod from being removed from the coil spring, and therefore the seat cushion is attached to the vehicle floor. Securely fixed. Next, when removing the seat cushion, the elastic release operation piece is temporarily engaged with a stopper provided on the housing member.

As a result, the coil spring is maintained in a large diameter state through which the large diameter portion of the rod can pass. Therefore, when the operator lifts the seat cushion upward, the large diameter portion of the rod can pass through the inside of the coil spring, which is maintained in a large diameter state, and the seat cushion can be removed from the vehicle floor. I can do it. In this removal operation, when the operation piece is engaged with the stopper portion, the operator is released from the operation and can determine that the coil spring is in the large diameter state.

Therefore, the operator can use both hands to lift the seat cushion, and the determination prevents unnecessary operations from occurring thereafter, thereby preventing damage to the device due to unnecessary operations. .

EXAMPLE An example of the present invention will be described below with reference to the drawings. That is, as shown in FIG.
A fixing rod 32 protrudes from the lower surface 30a, the upper end of which is welded and fixed to the seat cushion frame 31. As shown in FIG. 1, the fixing rod 32 has a small diameter part 33 in the middle having a diameter Ll, and a large diameter arm having a diameter L2 formed at the tip of the small diameter part wing. are doing. The diameters of the small diameter portion and the large diameter portion have a relationship of Ll<Ls, and the large diameter arm has a pointed end portion 34a.

On the other hand, a mounting hole 36 is formed in the vehicle body 70A.
At the edge of the mounting hole 36, seven langues 36 are vertically provided. A housing member 37 with an upper opening is fitted into the mounting hole 36, and the housing member 37 is composed of a first piece 39 and a second piece 40 connected via a hinge. There is. Both pieces 39.40 have
A collar portion 41.41 is formed on the upper edge, and a locking pawl 42 is formed on the outer surface to engage with the lower end of the seven flange 36a.
．． 42 is formed. Furthermore, a plurality of bottles 43 are protruded from the joint surface of the first piece 39, and an inner peripheral portion 4
A hole is formed approximately in the center of 4. On the other hand, the second piece 40 has a recess 46 (FIG. 2) that fits into the pin 43.
A through-shaped guide hole 47 having a required length in the horizontal direction is formed in the flange portion 41. A stopper part mallet is provided at one end of the guide hole 47, which is formed by cutting out an upper part of the hole end. A coil spring 49 is housed within the housing member 37 . The lower end group of the coil spring 49 is
It is inserted and fixed into the hole 45, and an operating piece 51 for releasing the elastic contact is extended from the upper end. The operation piece 51 is loosely inserted into the guide hole 47 and abuts against the opposite end 47a of the stopper part of the guide hole 47, and a knob 52 is fitted to the tip. The annular portion 53 of the coil spring 49 has an inner circumferential diameter L1 that is approximately the same diameter as the small diameter wing of the rod 32 in a normal state. When it is in the large diameter state, it has a characteristic that the inner peripheral diameter L3 is slightly larger than the diameter Lm of the large diameter portion 34 (FIG. 2(A)).

In this embodiment having the above configuration, when fixing the seat cushion 30 to the vehicle floor 35, as shown in FIG.
and lower the seat cushion 30.

At this time, the coil spring 49 maintains the inner circumferential diameter LsK, but the annular portion 53 is expanded by the large diameter portion 34 to have an inner circumferential diameter L3. is pressed in. Then, when the large diameter portion passes through all the annular portions 53 of the coil spring 49, the fixing rod 32 comes to correspond to the small diameter portion wings, so the coil spring 49 returns to its normal state and the inner periphery of each annular portion 53. The diameter is Ll. Therefore, the seven annular portions 53 are in elastic contact with the small diameter wings of the rod 32, and have a diameter L larger than the inner diameter L1 of the annular portion 53 in this normal state. The large diameter portion of the rod 32 is prevented from coming off, thereby preventing the rod 32 from detaching from the coil spring 49. Therefore, the rod 32 is securely fixed in the mounting hole 36 via the coil spring 49 and the housing 37, and the seat cushion can be fixed to the mounting floor 35.

Next, when removing the seat cushion 30 from the vehicle floor 35, the operator rotates the operating piece 51 in the direction of the stopper portion 48 and lifts it upward (arrow C in FIG. Lock it up in the gang. As a result, the coil spring 49 has an inner diameter L as shown in FIG. 2 (4).
3 is maintained in the large diameter state, and the operator also operates the operation piece 5.
1 and the stopper 48, it can be determined that the coil spring 49 has reached its large diameter state. Therefore, unnecessary operations will not be performed thereafter, and damage to the device due to excessive operating force can be prevented. Since the coil spring 49 is maintained in a large diameter state as described above and is prevented from reattaching itself to the rod 32, the operator can lift the seat cushion with both hands. Therefore, it is possible to reduce the work load when removing the seat cushion 30, and the large diameter portion can pass through the annular portion 53 of the coil spring 49, which is in a large diameter state, without any hindrance, making it possible to remove the seat cushion 30. You can complete your work.

DETAILED DESCRIPTION OF THE INVENTION As described in detail, the present invention provides a fixing rod having a small diameter portion in the middle and a large diameter portion at the tip protruding from the lower surface of the seat cushion, and a housing member provided on the floor of the vehicle body. A coil spring is disposed to fit outwardly into elastic contact with the small diameter portion through the housing, and a stopper portion is provided on the housing, and an operating piece for releasing the elastic contact formed at an end of the coil spring is locked to the stopper portion. This makes it possible to temporarily maintain the coil spring in a large diameter state. Therefore, the operator can determine that the coil spring has reached its large diameter state at the time when the operating piece is engaged with the stopper portion.

Therefore, unnecessary operations will not be performed subsequently, and damage to the device due to excessive operating force can be prevented. In addition, by securing the stopper part and the operating piece in this way, the coil spring is maintained in the large diameter state, so the coil spring does not engage with the small diameter part again, and therefore the operator is prevented from engaging the coil spring again. This makes it possible to lift the seat cushion with both hands, thereby reducing the workload when removing the seat cushion.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing one embodiment of the present invention, and Fig. 2 (a) and (b) correspond to the line ■-■ in Fig. 1 in the assembled state, showing the action of the same embodiment. Cross-sectional explanatory diagram, Figure 3 (
A) is a front view showing the fixing device main body of a conventional seat cushion fixing device, FIG. 3(B) is a sectional view taken along the line m-■ in FIG. side view, 4th
Figure (A) is a plan view showing the housing of a conventional seat cushion fixing device, Figure 4 (B) is a front view of the same, and Figure 4 (C) is a sectional view taken along the line IV-IV in Figure 4 (B). , Fig. 5 is an explanatory diagram showing the assembly structure of the conventional seat cushion fixing device, Fig. 6 (a) is a sectional view showing the state of the conventional seat cushion fixing device when the seat cushion is fixed, and Fig. ) is a cross-sectional explanatory view showing the state of the same device when the seat cushion is removed. 30...-Seat cushion, 32-Fist/fixing lot, 33...Small diameter part, 34...Large diameter part, A...Vehicle floor, 36-II/J [lL, 37...・))Using member, 48@...Stopper part, 49...Coil spring, 5111...Operation piece for releasing elastic contact. 2 people outside Figure 2 (A) Figure 3 (4) (B) (,,: %, / Grasp dimensions) ○ Figure (A) Figure 6 (B)

Claims (1)

[Claims] 1. A fixing rod having a small diameter part in the middle and a large diameter part at the tip is protruded from the bottom surface of the seat cushion, and a housing member with an opening at the top is inserted into the mounting hole provided in the vehicle floor. A coil spring is disposed inside the housing member so as to be in elastic contact with the small diameter portion of the rod, one end of which is fixed to the housing member, and an operating piece for releasing the elastic contact is extended from the other end. In addition, a stopper portion is formed on the housing member to temporarily engage with the operation piece to maintain the coil spring in a large diameter state through which the large diameter portion of the rod can pass. Device.