JPH02296544A - Windable seat with fall prevention member - Google Patents

Abstract

PURPOSE:To surely prevent the fall of an article through a variable clearance between seats in which a neiboring seat is slid in the right or left direction to make the clearance variable between both seats by providing a prevention member of fall of which the intermediate part is formed to be upward bent between both seats. CONSTITUTION:In a windable seat 1 in which a left side fixed seat 2 and a right side movable seat 3 are neiboring, the fixed seat frame 5 of the fixed seat 2 is fixedly secured on the upper end of a left side leg 4, and the extended seat frame 6 extending from the fixed seat frame 5 in the right direction is fixedly secured on the upper end of a right side leg 4. The movable seat frame 7 of the movable seat 3 is fitted on the extended seat frame 6 through a slide mechanism 10. In this case, a prevention member of fall 20 in which one end part is connected to the fixed seat frame 5 of the fixed seat 2 and the other end part is connected to the movable seat frame 7 of the movable seat 3 and the intermediate part is formed to be upward bent, is provided. This prevention member of fall 20 is composed of soft membrane 21 for example and two or more bending springs 22 integrated in folding sack parts 21a at the front and rear edges.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a widened seat that can expand the living space of a seated person by sliding adjacent seats in the left-right direction to widen the gap between the seats, and further relates to This relates to a widened seat equipped with a fall prevention member that prevents items such as sweets and personal belongings from falling from the variable gap between seats.

[Prior Art] Conventional widened seats have the disadvantage that when adjacent seats are widened by a sliding mechanism, articles such as belongings and sweets of the seated person may fall through the variable gap created between the seats. there were. Furthermore, if a seat rotation mechanism or the like is added to the lower part of the widened seat in addition to the slide mechanism,
There is also the problem that fallen items may interfere with the operation of the seat rotation mechanism or the like or may cause rust.

Therefore, the present applicant has previously filed an application for utility model registration and received utility model registration for the following two designs that solve the above problems.

(1) A widened seat having an end fixed to either a fixed seat side or a movable seat side and having a protective plate projecting approximately horizontally into a variable gap (Japanese Utility Model Publication No. 13156/1983).

(2) As shown in FIGS. 23 and 24, the fixed seat frame 5
1 or a fixed seat frame 52, one end of which is connected to the movable seat frame 5.
3 or a protective film 55 whose other end is connected to the movable seat 54
(Japanese Utility Model Publication No. 59-13157).

[Problem to be Solved by the Invention] However, with respect to the protection plate in (1) above, if only one end of the protection plate is fixed to one seat and the other end is not fixed to the other seat, the latter is fixed. A gap was created between the other end of the seat and the seat, and there was a possibility that objects could fall through this gap. Furthermore, as described in the above publication, when two protective plates are hinged and bent downward in a V-shape,
There was a problem in that the space below the seat for incorporating a slide mechanism and a seat rotation mechanism was reduced. In addition, when fixing both ends of the protective plate to both seats, the protective plate must be made of a flexible material such as a thin rubber plate, and the maximum sliding amount when widening should be larger than this flexibility. I couldn't do that.

Regarding the protection yA55 in (2) above, as shown in FIG.
loosens downward and is caught between the guide member 57 and the moving member 58 of the slide mechanism 56, and the slide mechanism 56
could interfere with the operation of the As described in the above-mentioned publication, if a rubber film or the like is used for the protective film 55, it will not loosen, but as mentioned above, the problem arises that the maximum sliding amount cannot be increased when the width is widened.

The purpose of the present invention is to solve the above problems and to reliably prevent articles from falling from the variable gap between seats.
To provide a novel widening seat with a fall prevention member, which can increase the maximum sliding amount when widening the seat without hindering the operation of a sliding mechanism or reducing the space for its installation.

[Means for Solving the Problems] In order to achieve the above object, in the present invention, the seat frame of at least one of the adjacent seats can be slid in the left-right direction by a slide mechanism provided below the seat frame. The following measures were taken for widened seats in which a variable gap was formed between the seats of these seats.

In the widened seat of claim 1, one end is connected to the seat frame or seat of an adjacent seat, the other end is connected to the seat frame or seat of the other adjacent seat, and the middle part is connected upward. A fall prevention member is provided so as to be bent to the side.

In the widened seat of claim 2, one end is connected to the seat frame or seat of an adjacent seat, and the other end is connected to the seat frame or seat of the other adjacent seat by its own weight or elastic force. A fall prevention member is provided that is always in contact with the device and is formed so that the intermediate portion does not loosen downward.

In the widened seat of claim 3, one end is connected to the seat frame or seat of an adjacent seat, and the other end is connected to a core pivoted to the seat frame or seat of the other adjacent seat. rolled,
A drop prevention member is provided, the intermediate portion of which is always tensioned toward the core by a biasing member provided on the core.

[Function] Since both ends of the fall prevention member according to claim 1 are connected to both adjacent seats, there is no gap between the fall prevention member and each seat. In addition, since the fall prevention member bends upward at its middle, it does not loosen downward and get caught in the slide mechanism, and reduces the installation space of the slide mechanism.
To avoid problems such as restricting the maximum sliding amount to a small value when widening the width.

Since both ends of the fall prevention member according to claim 2 are connected to or constantly in contact with both adjacent seats, there is no gap between the fall prevention member and each seat. Further, since the fall prevention member does not loosen downward, the above-mentioned problem does not occur.

Since both ends of the fall prevention member according to claim 3 are connected to both adjacent seats either directly or via the winding core, there is no gap between the fall prevention member and each seat. Further, the fall prevention member is always under tension and does not loosen downward, so that the above-mentioned problems do not occur.

[First Example] Hereinafter, a first example of a widened seat with a fall prevention member embodying the present invention will be described with reference to FIGS. 1 to 4.

The widened seat 1 of this embodiment is a two-person seat in which a fixed seat 2 on the left side and a movable seat 3 on the right side are placed next to each other.
Only the right movable seat 3 is a one-side sliding type widened seat that is slidable in the left-right direction.

A fixed seat frame 5 of the fixed seat 2 is fixed to the upper end of the left leg 4, and an extended seat frame 6 extending rightward from the fixed seat frame 5 is fixed to the upper end of the right leg 4. A movable seat frame 7 of the movable seat 3 is accommodated on the extended seat frame 6 via a slide mechanism 10. A fixed seat abutment 8 provided with a cushion material is attached to the fixed seat frame 5, and a similar movable seat abut is attached to the movable seat frame 7.

Although the slide machine 1i110 is not limited to a particular configuration, the slide mechanism 10 of this embodiment includes two rail-shaped guide members extending in the left-right direction and horizontally suspended near the front edge and rear edge of the extension seat frame 6. 11, and two reverse channel-shaped moving members 12 that are fitted and guided by both guide members 11 from above and slide in the left-right direction. The movable seat frame 7 is mounted on both movable members 12 and can slide in the left and right direction together with the movable members 12. In addition, a plate-shaped stop member 13 is attached to the lower part of the extension seat frame 6 and has a guide hole 14 extending in the left-right direction and engagement recesses 15a and 15b at the left and right ends thereof. At the lower right end, an operating rod 16 is rotatably pivoted, and the operating rod 16 has an engaging claw 17 on the left end that fits into the guide hole 14 and engages with the engaging recesses 15a and 15b. The engaging pawl 17 is attached to the shaft attachment portion of the operating rod 16.
A spring (not shown) is provided that always urges the shaft upward, and a pressing piece 18 is provided at the end to the right of the shaft attachment portion.

When the width of the widened seat 1 shown in FIG.
When the widening seat 1 is widened as shown in FIG.
is stopped, and a variable gap 19 is formed between the fixed seat rest 8 and the movable seat rest 9. Therefore, the maximum sliding amount of the expanded calyx is determined by the distance between the two engaging recesses 15a and 15b, and in this embodiment, this is appropriately set within the range of 20 to 200 mm.

Now, one end of the widened seat 1 is connected to the fixed seat frame 5 or the fixed seat 8 of the fixed seat 2, and the other end is connected to the movable seat 3.
A fall prevention member 20 is connected to the movable seat frame 7 or the movable seat 9 and has a middle portion bent upward.

The fall prevention member 20 of this embodiment is composed of a flexible membrane body 21 and two or more bending springs 22 built into folded bag portions 21a at the front and rear edges thereof.

The membrane body 21 has the maximum width variable gap 1 during width expansion as shown in FIG.
The left end of the membrane body 21 is sandwiched between the fixed seat frame 5 and the fixed seat 8, and the right end is sandwiched between the movable seat frame 7 and the movable seat 9. is sandwiched in between. As shown in FIG. 4, the longitudinal length of the membrane body 21 is equal to or longer than the longitudinal length of each seat 8.9. The material of this membrane body 21 is not limited to a specific material, and examples thereof include the same or different type of fabric as the upholstery of the seat 8.9, a vinyl leather sheet, and the like.

Further, the bending spring 22 is formed by bending a highly elastic metal wire approximately in the center so as to be wound upward 1 to 5 times, and both ends thereof are fixed to the fixed seat frame 5 and the movable seat frame 7. There is.

Therefore, when the bending spring 22 is widened as shown in FIG. 1, it resists its elastic force and becomes substantially horizontal with the membrane body 21, and when it is narrowed as shown in FIG. 2, it bends upward together with the membrane body 21 due to its elastic force. ing.

The widened seat configured as described above provides the following functions and effects.

■ Both ends of the fall prevention member 20 are connected to the fixed seat 2 and the movable seat 3, and there is no gap between the seats 2 and 3, so even when the width is expanded as shown in Fig. 1, the width is reduced as shown in Fig. 2. Even when the width is wide, it is possible to reliably prevent articles from falling through the variable gap 1"9.

(2) The fall prevention member 20 extends substantially horizontally when the width is widened as shown in FIG. 1, and is bent upward when the width is shortened as shown in FIG. 2, so that it does not loosen downward. Therefore, there is no fear that the fall prevention member 20 will get caught in the slide mechanism 10 and interfere with the operation of the slide mechanism 10, unlike in the conventional case. In addition, the fall prevention member 20 does not reduce the installation space of the slide mechanism 10, and rather the slide mechanism [10] can be provided directly below and adjacent to the movable seat frame 7.

■ The fall prevention member 20 is bent upward at its intermediate portion and is not restricted in flexibility as in the case of the rubber membrane described in the above-mentioned conventional publication, so the maximum sliding amount when widening is increased. be able to.

Next, second to seventh embodiments, which differ from the first embodiment only in the configuration of the fall prevention member, will be sequentially described.

[Second Embodiment] The fall prevention member 23 of the second embodiment shown in FIGS. 5 to 7 is sandwiched between each seat frame 5, 7 and a seat rest 8, 9,
7 and the two left and right fixing plates 24 and the variable gap 19
two left and right movable plates 25 that cover
It is composed of. The movable plate 25 is formed to have a left-right width that is substantially folded when the width is reduced as shown in FIG. 5, and extends substantially horizontally when the width is widened as shown in FIG.

The fall prevention member 23 also has one end connected to the fixed seat frame 5 or the fixed seat rest 8 of the fixed seat 2, the other end connected to the movable seat frame 7 or the movable seat 9 of the movable seat 3, and the intermediate part The basic structure of the second embodiment is the same as that of the first embodiment in that it is bent upward, and the same functions and effects as those of the first embodiment are achieved.

[Third Embodiment] Fall prevention member 27 of the third embodiment shown in FIGS. 8 to 10
is formed by one synthetic resin plate 28 whose both ends are sandwiched between each seat frame 5, 7 and the seat rest 8.9 and fixed to each seat frame 5, 7. 3 formed with a lecture
Integral hinge parts 2 of more than one (four in this example)
9, the middle portion is formed to be bent upward.

The synthetic resin plate 28 is folded into a substantially rectangular shape when the width is reduced as shown in FIG. 8, and is formed to have a horizontal width such that it extends substantially horizontally when the width is widened as shown in FIG.

The fall prevention member 27 also has the same basic structure as the first embodiment, and has the same functions and effects as the first embodiment.

[Fourth Example] Fall prevention member 3 of the fourth example shown in FIGS. 11 to 13
0 is such that it always leans against the fixed plate 31 at the right end fixed to the movable seat frame 7 or the movable seat rest 9 of the movable seat 3 and the fixed seat frame 5 or the fixed seat rest 8 of the fixed seat 2 due to its own weight. It is composed of a movable plate 32 that abuts, and a hinge member 33 that connects the two.

The tip of the movable plate 32 is fixed at the fixed seat 8 when the width is reduced as shown in FIG.
It is formed in a horizontal width such that it comes into contact with the upper part of the fixed seat 8 and comes into contact with the lower part of the fixed seat 8 when the width is widened as shown in FIG. Note that the fixed plate 31 may be fixed to the fixed seat 2 side, and the movable plate 32 may be brought into contact with the movable seat 3 side.

According to this embodiment, the following actions and effects are achieved.

■ Both ends of the fall prevention member 30 are connected to or are always in contact with the fixed seat 2 and the movable seat 3, and each seat 2
, 3, it is possible to reliably prevent the article from falling through the variable gap 19.

(2) Since the fall prevention member 30 does not loosen downward, it does not interfere with the operation of the slide mechanism 10 or reduce the installation space of the slide mechanism 10.

■ The fall prevention member 30 tilts in the variable gap 19,
Since flexibility is not restricted as in the case of using conventional rubber membranes, the maximum sliding amount when widening can be increased.

It is also possible to provide a coil spring (not shown) on the hinge member 33 and use its elastic force to bring the movable plate 32 into contact with the fixed seat 8.

[Fifth Example] Fall prevention member 3 of the fifth example shown in FIGS. 14 to 16
4 is composed of a bag body 35 and a square loop-shaped torsion spring 36 built therein. The left end of the bag body 35 contacts the upper part of the fixed seat 8 when the width is reduced as shown in FIG.
It is formed in such a width that it comes into contact with the lower part of the fixed seat 8 when the width is widened as shown in the figure, and its intermediate portion is supported by the torsion spring 36 to prevent it from loosening downward. Further, the torsion spring 36 is formed of a highly elastic metal wire, and is fixed to the movable seat frame 7 of the movable seat 3 or the movable seat perch in a state where the bent portions 36a at both ends are twisted against the elastic force. This generates an elastic force that always urges the bag body 35 toward the fixed seat 8 side. Note that the torsion spring 36 may be fixed to the fixed seat 2 side, and the bag body 35 may be brought into contact with the movable seat 3 side.

The fall prevention member 34 also has the same basic structure as the fourth embodiment except that it uses elastic force, and has the same functions and effects as the fourth embodiment.

[Sixth Example] Fall prevention member 3 of the sixth example shown in FIGS. 17 to 19
7 is a fixed plate 38 at the right end that is fixed to the movable seat frame 7 of the movable seat 3, and a movable plate 39 that is always substantially horizontally in contact with the lower surface of the fixed seat frame 5 of the fixed seat 2 due to elastic force; It is composed of a hinge member 40 that connects the two, and a coil spring 41 that is built into the hinge member 40 and applies elastic force to the three movable plates. The movable plate 39 has a left-right width such that its left end comes into contact with the lower surface of the fixed seat frame 5 even when the width is widened as shown in FIG. 18, and its intermediate portion has a strength that prevents it from loosening downward. Note that the fixed plate 38 is fixed to the fixed seat 2 side,
The movable plate 39 can also be brought into contact with the movable seat 3 side.

Alternatively, a hole may be provided in the opposing inner walls of the fixed seat frame 5 and the movable seat frame 7, and the fall prevention member 37 may be disposed in the hole.

The fall prevention member 37 slides into contact with the fixed seat frame 5 without tilting, but otherwise has substantially the same functions and effects as the fourth embodiment.

[Seventh Example] Fall prevention member 4 of the seventh example shown in FIGS. 20 to 22
2, the right end is the movable seat frame 7 or the movable seat 9 of the movable seat 3
The left end portion is wound around a winding core 43 which is pivoted to the fixed seat frame 5 or the fixed seat rest 8 of the fixed seat 2, and the middle portion is connected to the winding core 43 by a biasing member (not shown) provided on the winding core 43. It is constituted by a membrane body 44 that is formed so as to always be tensioned toward the winding core 43 side. The membrane body 44 maintains the variable gap 1 even when the width is expanded as shown in FIG.
9, and is automatically wound around the winding core 43 by a biasing member when the width is reduced as shown in FIG. Alternatively, a hole may be provided in the opposing inner walls of the fixed seat frame 5 and the movable seat frame 7, and the fall prevention member 42 may be disposed in the hole.

According to this embodiment, the following actions and effects are achieved.

■ Both ends of the fall prevention member 42 are connected to the fixed seat 2 and the movable seat 3 either directly or via a winding core 43, and since there is no gap between them and each seat 2.3, there is no gap between the variable gap 19 and the movable seat 3. It is possible to reliably prevent articles from falling.

(2) Since the fall prevention member 42 is always under tension and does not loosen downward, it does not interfere with the operation of the slide mechanism 10 or reduce the installation space of the slide mechanism 10.

(2) Since the fall prevention member 42 is freely extended into the variable gap 19 and is not restricted in its flexibility as in the case of using a conventional rubber membrane, the maximum sliding amount when widening can be increased.

It should be noted that the present invention is not limited to the configuration of the above-mentioned embodiments, and may be modified and embodied as desired without departing from the spirit of the invention, for example, as described below.

(1) Although the above-mentioned embodiment was embodied in the widened seat 1 of the one-side sliding type, the present invention allows the seat frames of both adjacent seats to be slid in the left-right direction by a slide mechanism provided below them. It can also be embodied in a widened seat with slides on both sides.

Further, in addition to the sliding mechanism, the present invention can also be embodied in a widened seat with a seat rotation mechanism and other various mechanisms added.

(2) The present invention can be applied not only to a widened seat for two people, but also to the above widened seat for three people.

(3) The slide mechanism is not limited to a specific configuration, and may be a slide mechanism equipped with an automatic width reduction mechanism using a spring, for example.

(4) The specific aspect of the fall prevention member can be changed without departing from the spirit of the invention.

[Effects of the Invention] According to the present invention as set forth in claim 1.2 or 3, it is possible to reliably prevent an article from falling from the variable gap between the seats, and prevent the movement of the slide mechanism or the assembly thereof. This has the excellent effect of allowing the maximum sliding amount to be increased when widening the width without reducing the space involved.

[Brief explanation of the drawing]

Figure 1 is a front view of the widened seat of the first embodiment when the width is widened;
The figure is a front view when the width is reduced, FIG. 3 is a sectional view taken along the line A--A in FIG. 2, and FIG. 4 is a plan view when the width is expanded. FIG. 5 is a front view of the main parts of the widened seat of the second embodiment when the width is reduced;
FIG. 6 is a front view of the main part when the width is widened, and FIG. 7 is a perspective view of the fall prevention member. FIG. 8 is a front view of the main parts of the third embodiment of the widened seat when the width is reduced;
FIG. 9 is a front view of the main part when the width is widened, and FIG. 10 is a perspective view of the fall prevention member. FIG. 11 is a front view of the main part of the fourth embodiment of the widened seat when the width is reduced, FIG. 12 is a front view of the main part when the seat is widened, and FIG. 13 is a perspective view of the fall prevention member. FIG. 14 is a front view of the main parts of the fifth embodiment of the widened seat when the width is reduced, FIG. 15 is a front view of the main parts when the seat is widened, and FIG. 16 is a perspective view of the fall prevention member. FIG. 17 is a front view of the main parts of the widened seat of the sixth embodiment when the width is reduced, FIG. 18 is a front view of the main parts when the width is widened, and FIG. 19 is a perspective view of the fall prevention member. FIG. 20 is a front view of the main part of the seventh embodiment of the widened seat when the width is reduced, FIG. 21 is a front view of the main part when the seat is widened, and FIG. 22 is a perspective view of the fall prevention member. Fig. 23 is a front view of the main part of a conventional widened seat when the width is reduced, and Fig. 24 is a front view of the main part when the width is widened. 2...Fixed seat, 3...Movable seat, 5...Fixed seat frame, 7...Movable seat frame, 8...Fixed seat support, 9...Movable seat support, 0... Slide mechanism, 19... variable gap,
0.23.27...Fall prevention member, 0.34.37...Fall prevention member, 3...Fall prevention member.

Claims (1)

[Scope of Claims] 1. The seat frame of at least one of the adjacent seats is provided so as to be slidable in the left-right direction by a slide mechanism provided below, thereby forming a variable gap between the seats of these seats. In a widened seat, one end is connected to the seat frame or seat of one adjacent seat, the other end is connected to the seat frame or seat of the other adjacent seat, and the middle part is bent upward. Fall prevention members (20) (23) (27) formed like this
A widened seat with a fall prevention member, characterized by being provided with a fall prevention member. 2. In a widened seat in which the seat frame of at least one of the adjacent seats is slidable in the left-right direction by a sliding mechanism provided below, and a variable gap is formed between the seats of these seats, one end part is connected to the seat frame or seat of one adjacent seat, the other end is always in contact with the seat frame or seat of the other adjacent seat due to its own weight or elastic force, and the middle part is downward. A widened seat with fall prevention members, characterized in that fall prevention members (30), (34), and (37) are formed so as not to loosen. 3. In a widened seat in which the seat frame of at least one of the adjacent seats is slidable in the left-right direction by a sliding mechanism provided below, and a variable gap is formed between the seats of these seats, one end One end is connected to the seat frame or seat of an adjacent seat, the other end is wound around a winding core that is pivoted to the seat frame or seat of the other adjacent seat, and the middle part is connected to the winding core. A widened seat with a fall prevention member, characterized in that a fall prevention member (42) is formed so as to be constantly tensioned toward the winding core by a biasing member provided at the core.