JP2007276785A - Vehicle seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle seat provided with a table capable of stably placing an article of large depth, not coming too close to a user and easily used. <P>SOLUTION: In the vehicle seat, the table 13 provided at a back surface side of a back rest 6 is accomodated in non-use in a state of coming close and approximately parallel to the back surface of the back rest and is supported so as to be turned until its whole body becomes approximately horizontal without separating a front end from the back surface of the back rest in use. A recessed part 16 provided with an enlargement table surface 17 having approximately the same height level as the table surface 15 of the table in use is formed on the back surface of the back rest, and the depth of the table can be enlarged by approximately continuing the enlargement table surface to the table surface in use. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle seat installed in various vehicles such as buses, railway vehicles, aircrafts, ships and the like.

  As shown in FIG. 4, in many conventional vehicle seats 80, a table 82 provided on the back side of the backrest 81 is stored in close proximity to the back surface of the backrest 81 during storage. Sometimes, the front end is separated from the back of the back rest 81 (some are not separated) and is supported so as to be rotated until the whole becomes substantially horizontal. (For example, see Patent Document 1, Patent Document 2, Patent Document 3, and Patent Document 4) The center 83 of the rotation is near the front end of the table 82 (the distance from the center 83 of the rotation to the front end of the table 82 is several cm at most. Therefore, most of the depth of the table 82 is determined from the center 83 of the rotation to the front end of the table 82.

No. 6-9893 Registered Utility Model No. 2547750 Japanese Utility Model Publication No. 63-28675 JP-A-6-32166 Japanese Utility Model Publication No. 58-58949

(1) The table 82 is used to place various items such as lunch boxes, beverage containers, books, documents, and notebook computers. However, with regard to the dimensions of the conventional table 82, with regard to the width, the depth is limited by the restrictions due to the relationship between the distance between the front and rear seats and the table support mechanism, and the design limitations of the backrest that stores the table. There was a problem that it was difficult to take large. For this reason, when an object having a large depth is placed, the depth of the table 82 is insufficient, and the placed object may become unstable.

  By the way, as shown in FIG. 5 (a-1) for the state during use, and in FIG. 5 (a-2) for the state during storage, the table 82 is divided into a front half 82a and a rear half 82b. In some cases, both the 82a and 82b are pivotably attached so that the latter overlaps the former, and the latter expands flush with the former when in use (see, for example, Patent Document 1). However, this folding structure is intended to make the table at the time of storage compact and to avoid the design limitation of the backrest that stores the table described above, and extends the depth of the table 82 when it is unfolded. It is not intended to solve the above problem. However, the present inventor thought that the depth of the table 82 when unfolded can be expanded by slightly increasing the depth of the front half 82a and the latter half 82b. It was not adopted because it was too close and caused the problem described in (2) below.

  In addition, since the present invention uses the concave portion on the back of the back cover as a constituent element, when the conventional technology related to the concave portion is mentioned just in case, the one in which the concave portion is provided on the back surface of the back cover is known (for example, , See Patent Document 5). However, the conventional concave portion is a concave portion for storing small items exclusively and exists independently of the table. Therefore, such prior art is irrelevant to the present invention.

(2) As described above, not only the table 82 is rotated substantially horizontally during use, but also the front end of the table 82 is separated from the back surface of the backrest 81 so that the table 82 is close to the user for easy use. It is to do. Further, as shown in FIG. 5 (b-1) for the non-sliding state and in FIG. 5 (b-2) for the sliding state, the table 82 in use is rearward from the reference position immediately after the rotation. Some of them slide to a position to bring the table 82 closer to the user (for example, see Patent Document 2).

  However, when the front / rear seat pitch is small as represented by the economy class of aircraft, or when the user's physique is large, the table 82 is too close to the user as described above. On the other hand, it has been found that it may be difficult to use.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vehicle seat having a table that can stably place an object having a large depth and is easy to use without being too close to the user.

(1) The table provided on the back side of the backrest is stored close to the back surface of the backrest in a substantially parallel manner during storage, and the front end is not separated from the back surface of the backrest when used, and is generally horizontal as a whole. In the vehicle seat supported so as to be pivoted to the back, an expansion recess having an extension table surface extending substantially horizontally at substantially the same height level as the table surface of the table in use is formed on the back surface of the backrest. A vehicle seat characterized in that the depth of the table can be expanded by making the extended table surface substantially continuous with the table surface in use.

  In the means (1), the extension table surface is substantially horizontal because the table surface in use is horizontal. If the back is not reclining, the extension table surface may be formed horizontally. If the back cover is to be reclined, the angle of the expansion table surface also changes with the reclining angle, so the expansion table surface can be moved to one point within the reclination angle range (for example, an unreclined point, a reclining midpoint or It may be formed so as to be horizontal at the maximum reclining point) and to be substantially horizontal with some angle at other points within the same angle range.

  The depth of the extension table surface is not particularly limited, but is preferably about 1/3 to 9/10 of the backrest thickness. It is because it is thought that it is the effective depth which can be taken, leaving the room which provides a cushioning material in the front side of a back cover. The width of the extended table surface is not particularly limited, but is preferably equal to or greater than the width of the table, and the upper limit is naturally limited by the width of the backrest. The height of the recess for expansion is not particularly limited. For example, in order to allow a lunch box, a book, a laptop computer, etc. to enter, it is preferably 50 mm or more (at the lowest part when the height changes), and is preferably 100 mm or more. Further preferred. Moreover, it is preferable that the height of the expansion recess changes higher in the opening than in the deep portion. Further, it is preferable that the expansion recess is closed by a table when stored, and in that case, the upper limit of the height of the expansion recess is naturally limited by the depth of the table.

  As described above in detail, according to the vehicle seat according to the present invention, a vehicle having a large depth can be stably placed, and the vehicle seat includes a table that is easy to use without being too close to the user. There is an excellent effect that it can be.

Hereinafter, the object seat of this invention is demonstrated in 1st embodiment based on drawing. In addition, the quantity described in the embodiment is an example, and can be changed as appropriate.
1 to 3 show a first embodiment in which the present invention is embodied in a bus seat 1. As an example, a bus seat 1 for two people includes a seat frame 4 supported by the front legs 2 and the rear legs 3, a seat portion 5 provided with a cushion material or the like installed on the seat frame 4, and a seat frame. 4 has a basic configuration including a backrest 6 supported so as to be able to recline about 20 ° and an armrest 7 supported on the seat frame 4, for example.

In the present embodiment, a table device 10 is attached to the back side of the backrest 6. The table device 10 includes a pair of support arms 11 that are rotatably coupled to the seat frame 4 at a lower portion of the backrest 6, and a pair of support members 12 that are attached to each side portion on the upper side of the backrest 6. And a table 13 (width 380 mm, depth 180 mm, thickness 30 mm) supported between the tips of the support arm 11 and the support member 12. In this table 13, a rotating shaft 8 that protrudes outward from both side surfaces of the table 13 is pivotally supported at the tip of the support arm 11, and a support shaft 9 that is juxtaposed in front of the rotating shaft 8 is at the tip of the support member 12. It is supported by being pivotally supported. The support arm 11 performs adjustment to keep the table surface 15 horizontal by reclining the bus seat 1, and the rotary shaft 8 serves as an axis for performing the adjustment. The support member 12 supports the front end 13a of the table 13 so as to be close to the back side of the backrest 6, and the support shaft 9 serves as a shaft for rotating during storage.
Thus, when the table 13 is stored (the aspect of the table 13 of the right bus seat 1 in FIG. 1) by the rotary shaft 8 and the support shaft 9, the table 13 is close to the back surface of the backrest 6 substantially in parallel. And stored. At that time, the table 13 is held in the storage position by a rotary operation type latch 14 attached to the substantially central portion of the upper part of the back of the backrest 6. Further, when the table 13 is used (an aspect of the table 13 of the left bus seat 1 in FIG. 1), the front end 13a of the table 13 does not move away from the back surface of the backrest 6 until the whole is substantially horizontal. Supported to move.

An expansion recess 16 (width 280 mm, depth 40 mm, height 120 mm) is formed on the back surface of the backrest 6. The extension recess 16 includes an extension table surface 17 that is substantially level at the same level as the table surface 15 of the table 13 in use, and the extension table surface 17 is substantially continuous with the table surface 15 in use. The table depth can be expanded. In the present embodiment, the reclining angle of the bus seat 1 is, for example, within 20 °. Therefore, when the bus seat 1 is in the reclining midpoint (10 °), the expansion table surface 17 is horizontal as the table surface 15 is. An extension table surface 17 is formed so as to be. Therefore, as shown in FIG. 2A, the angle of the extension table surface 17 with respect to the table surface 15 at the unreclined point of the bus seat 1 is −10 °. As shown in FIG. 2B, the angle of the extension table surface 17 at the maximum reclining point (20 °) of the bus seat 1 is + 10 °. As described above, even when the bus seat 1 is reclined, the angle of the extension table surface 17 with respect to the table surface 15 is kept substantially horizontal.
Further, as shown in FIG. 3, the expansion recess 16 is closed by the table 13 when the table 13 is housed in close proximity to the back surface of the backrest 6.

  According to the bus seat 1 of the first embodiment configured as described above, by forming the expansion recess 16, the depth of the table can be expanded without expanding the table itself. The table 13 can be placed stably and easy to use.

In addition, this invention is not limited to the said embodiment, For example, it can also be suitably changed and embodied as follows, for example in the range which does not deviate from the meaning of invention.
(1) The bus seat table of the first embodiment is used for a vehicle seat.

1 is a perspective view of a bus seat according to a first embodiment of the present invention. It is sectional drawing of the aspect which is (a) the reclining aspect of the bus seat which concerns on the same embodiment, (b) It is sectional drawing of the aspect which is reclining. It is sectional drawing of the state which accommodated the table of the bus seat which concerns on the embodiment. It is a side view of the aircraft seat which concerns on the prior art example of this invention. (A-1) Side view at the time of expansion, (a-2) Side view at the time of non-expansion, (b-1) Side view at the time of expansion, (b- 2) Side view when not expanded.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bus seat 6 Backrest 9 Support shaft 10 Table apparatus 11 Support arm 12 Support member 13 Table 15 Table surface 16 Expansion recessed part 17 Expansion table surface

Claims (4)

  The table provided on the back side of the backrest is stored in close proximity to the back of the backrest when stored, and when used, the front end rotates without turning away from the back of the backrest until it is almost horizontal. In the supported vehicle seat, an extension recess having an extension table surface extending substantially horizontally at substantially the same height level as the table surface of the table in use is formed on the back surface of the backrest. A vehicle seat characterized in that the table depth can be expanded by making the extended table surface substantially continuous with the table surface in use.   The back rest is to be reclined, and the extension table surface is formed to be horizontal at a reclining midpoint within a reclining angle range and to be substantially horizontal with a slight angle at other points within the angular range. Item 1. A vehicle seat according to Item 1.   The vehicle seat according to claim 1 or 2, wherein a depth of the extension table surface is 1/3 to 9/10 of a thickness of the backrest.   The vehicle seat according to claim 1, 2 or 3, wherein the height of the recess for expansion changes higher in the opening than in the deep portion.

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