JP3129060B2 - Car seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case where a tether anchor hanger to which a tether anchor hook for supporting a child seat is engaged, and a seat back and a seat cushion are folded and placed upright on a vehicle body floor. More specifically, the present invention relates to an automobile seat having a seat back prevention band for preventing the vehicle from falling down on the seat back.

[0002]

2. Description of the Related Art FIG. 8 shows a conventional automobile seat (rear seat) 30 of this type. In FIG. 8, reference numeral 31 denotes a seat cushion, and 32 denotes a seat cushion 31 which can be folded. The seat back 33 is a seat cushion 31 and a seat back 32.
This is a child seat (child seat) which is used by being installed on an automobile seat 30 made of.

[0003] As shown in FIG. 8, the vehicle seat 30 described above, together with the tether anchor hanger 34 is mounted with bolts S ₁ the upper edge portion of the surface 32a after the seat back 32, the tether anchor hanger 34 Nearby location (different from the mounting position of the tether anchor hanger 34)
One end of the band 35 for preventing the seat from falling
It is mounted so that it can rotate at ₂ .

[0004] A holding belt 36 is inserted through a belt insertion hole 33a formed in the child seat 33 to fix both ends of the holding belt 36 to the vehicle body side.
The child seat 33 is fixedly mounted on the vehicle seat 30 by engaging a tether anchor hook 38 connected to the upper end of the belt 3 via a belt 37 to the tether anchor hanger 34. .

When the child seat 33 is not used, the seat back 32 is tilted forward to the side of the seat cushion 31 so as to be folded in two, and then, as shown in FIG. By arranging it upright, the space at the rear of the passenger compartment can be widened.

In this case, the metal fittings 40 at the tip of the seat fall prevention band 35 are hooked on the hooks 41 of the vehicle body floor 39 to prevent the fall of the automobile seat 30 in the folded state. I have.

The above-mentioned band 35 for preventing the seat from falling down
A band-shaped rubber band 42 is sewn on both ends on the back side of the rubber band 4 as shown in FIG.
The sheet fall prevention band 35 is constantly urged in the contraction direction by the elastic force (pulling force) of 2. The reason that the rubber band 42 is provided on the back side of the band 35 for preventing the sheet from falling down is that the band 35 can be stretched when the sheet is folded down forward, so that the operation of hooking the attachment 40 to the hook portion 41 becomes possible. Moreover, even when the vehicle seat 30 tilts forward when the vehicle suddenly oscillates or stops suddenly, the state of engagement of the attachment fitting 40 to the hook portion 41 is reliably maintained by the pulling force of the rubber band 42. That's why.

[0008]

However, the conventional vehicle seat 30 as described above has the following disadvantages. That is, since the tether anchor hanger 34 and the sheet falling prevention band 35 must be separately mounted at two different places, respectively, two sets of mounting parts such as bolts, nuts, washers and the like are required. Since the mounting work must be performed individually, there is a problem that the number of parts and the number of working steps are increased.

When the child seat 33 is placed on the vehicle seat 30 and the tether anchor hook 38 is engaged with the tether anchor hanger 34 in order to fix and support the child seat 33, the tether anchor hook 38 is inadvertently inadvertently operated by the operator. Unexpectedly hits the skin portion 32b of the seat back 32 near the tether anchor hanger 34, and this skin portion 3
2b may be damaged. Further, in a state where the tether anchor hook 38 is engaged with the tether anchor hanger 34, the tether anchor hook 38 hits the skin portion 32b due to the vibration of the automobile or the movement of the infant or the like sitting on the child seat 33. The skin portion 32b may be damaged.

On the other hand, when the vehicle seat 30 is in a normal state, that is, when the band 35 for preventing the seat from falling is not used, the band 35 is rotatable around the screw S ₂ without being fixed, and the vehicle is running. As shown in FIG. 7, as shown in FIG. 7, a wobbling motion always occurs, and the appearance (appearance) is very poor.

In order to solve such a problem, a band 35 for preventing the seat from falling is interposed between the tether anchor hanger 34 and the skin of the seat back 32 so as to fix them together. It is conceivable that a sandwich configuration is adopted and the band 35 for preventing the sheet from falling down functions as an underlaying member of the tether anchor hook 38. When such a configuration is employed, it is possible to prevent the seat back skin from being damaged by the tether anchor hooks 38, and to reduce the number of parts of the mounting members such as bolts and improve the appearance.

However, in this case, the band 35 for preventing the seat from falling down functions as an underlaying member of the tether anchor hook 38.
The tether anchor hook 38 comes into contact with itself, causing damage such as abrasion. If the tether anchor hook 38 has been used for a long period of time, it may not be possible to obtain sufficient strength of the band 35 when the sheet is tilted forward.

The present invention has been made in view of such circumstances, and has as its object to constantly apply a pulling force for maintaining a seated state of a band for preventing a sheet from falling when the sheet is folded forward. Another object of the present invention is to provide an automobile seat capable of preventing the band for preventing the seat from collapsing even when the band for preventing the seat from collapsing is used as the underlaying member of the tether anchor hook.

[0014]

In order to achieve the above-mentioned object, according to the present invention, a tether anchor hanger to which a tether anchor hook for supporting a child seat is engaged, a seat back and a seat cushion are overlapped. In a vehicle seat having a seat-back preventing band which is provided on each of the seat backs for preventing the seat from falling when folded and placed upright on a vehicle body floor, a boot member made of an elastic material is provided around the seat-fall preventing band. A band member is provided, and one end of the tether anchor hanger and the band member are fixed to the seat back with the band member interposed between the tether anchor hanger and the skin of the seat back. I am trying to do it.

[0015]

The pulling force of the boot member made of an elastic material is constantly applied to the band for preventing the seat from falling, so that the state of the band for preventing the seat from falling on the vehicle body can always be maintained. In addition, since the band for preventing the seat from falling is covered with the boot member, even if the band for preventing the seat from falling is used as an underlaying member of the tether anchor hook, the tether anchor hook may directly contact the band. Without contact with the boot member.
Thus, the tether anchor hook prevents the band for preventing sheet collapse from being damaged such as abrasion.

[0016]

1 to 7 show an embodiment of the present invention.
This will be described with reference to FIG.

FIG. 1 shows a vehicle seat 1 according to the present embodiment. The vehicle seat 1 is a rear seat of a four-wheeled vehicle. Then, a child seat 2 is placed on the vehicle seat 1 as necessary, and as described later,
The vehicle seat 1 is configured to be fixedly supported at a predetermined position.

The above-mentioned automobile seat 1 comprises a seat cushion 3 on which an occupant sits and a seat back 4 on which a seated person rests. The seat back 4 is tilted forward (rotated) with respect to the seat cushion 3. As shown in FIG. 5, the entirety of the automobile seat 1 folded in two layers is erected.

As shown in FIGS. 1 and 5, a tether anchor hanger 5 for supporting a child seat is provided on the rear surface 4a side of the seat back 4 at the upper end edge thereof and substantially at the center in the left-right direction. One end of a band member 14 that incorporates a band 6 for preventing the seat from falling (see FIGS. 2 and 4) is fastened together by a single bolt 7.

More specifically, first, the tether anchor hanger 5 for supporting a child seat is formed by bending a stepped portion 8 at an intermediate portion of a rectangular steel plate as clearly shown in FIG. A bolt insertion hole (not shown) is formed at one end 5a, and a hook engaging hole 10 is formed at the other end.

On the other hand, the band 6 for preventing the sheet from falling down is made of a flexible cloth member or the like. As shown in FIG. 3, a bolt insertion hole 11 is formed in one end 6a and the other end 6b is connected to the other end 6b. A fitting 12 is attached.

The above-mentioned band 6 for preventing the seat from falling down
Around the two rubber strips 1 with moderate elasticity
A boot member (rubber boot) 13 formed by sewing 3a and 13b together at both ends P and Q is provided, and the boot member 13 covers the entire sheet fall prevention band 6. Thus, one band member 14 is constituted by the sheet falling prevention band 6, the boot member 13 and the fastening member 12, and the sheet falling prevention band 6 is built in the boot member 13. The band member 14
The bolt insertion hole 11 of the band 6
A pair of bolt insertion holes 15 of the boot member 13 corresponding to the bolt insertion holes 11 form one bolt insertion hole 16.

When the above-mentioned band member 14 is not used, as shown in FIG. 4, the boot member 13 is placed in a contracted state, and the seat fall prevention band 6 is placed inside the boot member 13. Is configured to be in a slack state.

Thus, the above-mentioned tether anchor hanger 5
One end portions 5a and 14a of the band member 14 are overlapped with each other and attached to the upper portion of the rear surface of the seat back 4 by fastening together. The boot member 13 is provided between the skin of the seat back 4 and the tether anchor hanger 5. It has been interposed.

In this case, the tether anchor hanger 5
Are arranged so as to extend in the up-down direction, and the hook engaging holes 10 are located immediately above the one end 5 a and slightly lower than the upper end surface 4 b of the seat back 4. Further, the band member 14 is arranged so as to extend upward from one end portion 14 a thereof, and is configured such that the metal fitting 12 at the other end portion 14 b can extend onto the upper end surface 4 b of the seat back 4. Although not shown, the other end 14b of the band member 14 is configured to be detachably attached to the upper end surface 4b of the seat back 4 by means such as a velvet fastener.

On the other hand, a child seat 2 installed and used on an automobile seat 1 has, as shown in FIG.
A belt insertion hole 20 is provided in a corner at the lower end of the rear portion. And, in the upper central part of the child seat 2,
A holding belt 22 provided with a tether anchor hook 21 at the tip is attached. As shown in FIG. 5, a step portion 25 is provided on a portion corresponding to the vehicle seat 1 on the vehicle body floor 24, and a hook 26 is provided on the step portion 25.

Next, the usage of the vehicle seat 1 of this embodiment having such a configuration will be described as follows.

First, in a normal case where the child seat 2 is not used, the other end 14b of the band member 14 is connected to the upper end face 4 of the seat back 4 by a velvet fastener (not shown) or the like.
b, whereby the entire band member 14 including the band 6 for preventing the seat from falling is fixed to the seat back 4 without swinging. By doing so, the band member 14 is integrated with the seat back 4, and it is possible to avoid a situation in which the appearance of the band member 14 is deteriorated due to drooping or wobbling of the band member 14.

When the child seat 2 is installed on the vehicle seat 1 as required, the child seat 2 is first placed on the seat cushion 3 of the vehicle seat 1 and the belt insertion hole of the child seat 2 is inserted. The both ends of the support belt 27 (see FIG. 1) inserted through 20 are fixed to the vehicle body floor 24 by being appropriately tensioned without slack.

Then, the tether anchor hook 21 is engaged with the tether anchor hanger 5 on the seat back 4 side. As a result, the child seat 2 is
At 2 and 27, they are fixedly supported on the vehicle seat 1.

On the other hand, when the vehicle seat 1 is to be folded in order to increase the space behind the cabin, first, the fixed state of the other end 6b of the band member 14 is released to make it free. . Thereafter, the lock between the seat cushion 3 and the seat back 4 is released, and the seat back 4 is rotated forward so that the seat back 3 and the seat back 4 are overlapped with each other to form a folded state. The seat 1 is turned around a hinge (not shown) so as to be in an upright state as shown in FIG. Along with this, the rear surface 4a of the seat back 4 is arranged on the front side, and the tether anchor hanger 5 and the band member 14 are inverted and arranged in a suspended state at the lower position on the front side.

In this state, the fastening member 12 of the band member 14 is moved to the boot member 1 as shown by an arrow B in FIG.
Pulling downward against the elastic force of No. 3, the fastening fitting 12 is engaged with the hook 26 of the vehicle body floor 24 as shown by an arrow C in FIG. 7. As a result, the engagement state of the attachment fitting 12 to the hook 26 is maintained by the pulling force (elastic restoring force) of the boot member 13, and the seat fall prevention band 6 is brought into a state close to the tension state. As a result, the rotation of the vehicle seat 1 toward the rear of the vehicle (in the direction of arrow a in FIG. 5) is prevented. The rotation of the vehicle seat 1 in the forward direction of the vehicle (in the direction of the arrow b in FIG. 5) is performed by the hinge.
And the vehicle body floor 24. As a result, the vehicle seat 1 is erected in a state in which the seat 1 is prevented from falling in any direction of the vehicle front-rear direction.

According to the automobile seat 1 having such a structure, the tether anchor hanger 5 and the band member 14 are fastened together by the single bolt 7, so that the bolts are not required as compared with the case where these are separately mounted. It is possible to reduce the number of components of the mounting member and the number of mounting steps, and to reduce the cost of the automobile seat 1.

Further, according to the present embodiment, when the child seat 2 is installed on the vehicle seat 1, the tether anchor hook 21 engaged with the tether anchor hanger 5 is used.
A band member 14 is present at a lower portion of the seat back 4, and the band member 14 is interposed between the tether anchor hook 21 and the skin of the seat back 4. Therefore, the band member 14 functions as an underlay member of the tether anchor hook 21 and the tether anchor hook 21
Does not directly contact the skin of the seat back 4. For this reason, even if the tether anchor hook 21 is carelessly handled during the operation of engaging the tether anchor hook 21 to the tether anchor hanger 5, or the tether anchor hook 21 is attached to the tether anchor hanger 5 due to the vibration of the automobile under the engaged state. Even if the rocker swings, the situation where the skin of the seat back 4 is damaged by the tether anchor hook 21 can be avoided.

Further, according to this embodiment, in addition to providing such a practical function and effect, it is possible to protect the band 6 for preventing the sheet from falling down as an underlay member.
In other words, the band 6 for preventing the seat from falling, which functions as a protector of the skin of the seat back 4, is covered with the rubber boot member 13 so that the band 6 for preventing the seat from falling when the child seat 2 is used. 4 and the tether anchor hook 21, the tether anchor hook 21 does not directly contact the band 6, and the boot member 13
Will be interposed. For this reason, the boot member 1
3 functions as a protector of the band 6 for preventing the seat from falling, so that it is possible to prevent a situation where the band 6 for preventing the sheet from falling is damaged and a sufficient supporting strength cannot be obtained.

When the band 6 for preventing the seat from falling down is used under the state in which the seat is tilted forward, the engaged state between the engagement fitting 12 and the hook 26 can be maintained by the pulling force of the boot member 13. . Therefore, when the vehicle seat 1 placed upright swings in the direction of the arrow b in FIG. 5 due to the vibration caused by the start and stop of the vehicle, the attachment 12 is detached from the hook 26, and the vehicle seat 1 is moved in FIG. It is possible to avoid falling down in the direction of arrow a.

Further, as described above, since the band 6 for preventing the seat from falling is covered with the boot member 13,
The band 6 for preventing the sheet from falling down cannot be seen from the outside. Therefore, in the case of the present example, the dyeing for improving the appearance of the band 6 for preventing the sheet from collapsing, which has been conventionally performed, is not required. As a result, the production of the band 6 for preventing the sheet from collapsing is simplified and the cost is reduced. Becomes possible.

As described above, one embodiment of the present invention has been described.
The present invention is not limited to this embodiment, and various modifications and changes can be made based on the technical idea of the present invention. For example, in the above-described embodiment, the rubber boot member 13 is used.
However, boot members made of various elastic materials having appropriate elasticity other than rubber may be used. Further, the band 6 for preventing the seat from falling down is connected to the boot member 1.
The configuration for covering with 3 can be appropriately selected.

[0039]

As described above, according to the present invention, a band member is provided by arranging an elastic boot member around a band for preventing a seat from falling, and a band member is provided between a tether anchor hanger and a skin of a seat back. Since the tether anchor hanger and one end of the band member are fixed to the seat back with the band member interposed therebetween, the band for preventing the seat from falling down when the seat is tilted forward is maintained. The pulling force can always be applied by the boot material made of elastic material, and the seat collapses even when the seat collapse prevention band is used as the underlaying member of the tether anchor hook and the protector of the seat back skin is adopted. The prevention band can be prevented from being damaged by the tether anchor hook. Therefore, even after long-term use, deterioration of the function of the band for preventing sheet collapse can be avoided, and sufficient holding strength can be ensured even when the band for preventing sheet collapse is used for a long period of time.

Further, according to the present invention, the periphery of the band for preventing the seat from falling is covered with the boot member, so that the belt for preventing the seat from falling becomes a member which cannot be seen from the outside. For this reason, the belt for preventing sheet collapse does not have to be dyed for improving the appearance, and the dyeing process can be omitted in the production of the belt for preventing sheet collapse, and the cost of the belt for preventing sheet collapse can be reduced. .

[Brief description of the drawings]

FIG. 1 is a perspective view of an automobile seat according to the present invention.

FIG. 2 is a perspective view showing an upper portion of a seat back of the automobile seat according to the present invention.

FIG. 3 is a perspective view of a belt member used to hold a child seat.

FIG. 4 is a sectional view taken along line AA in FIG.

FIG. 5 is a perspective view showing a state in which the automobile seat according to the present invention is folded.

FIG. 6 is a cross-sectional view showing a state before a fastening member of a belt member is engaged with a hook.

FIG. 7 is a cross-sectional view showing a state in which a metal fitting of a belt member is fixed to a hook.

FIG. 8 is a perspective view of a conventional automobile seat.

FIG. 9 is a perspective view showing a state in which a conventional automobile seat is folded.

FIG. 10 is a perspective view of a seat-fall prevention band used in a conventional automobile seat.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automobile seat 2 Child seat 3 Seat cushion 4 Seat back 5 Tether anchor hanger 6 Seat fall prevention band 7 Bolt 12 Fastener 13 Boot member 14 Band member 21 Tether anchor hook 22 Holding belt 26 Hook

──────────────────────────────────────────────────の Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60N 2/30 B60N 2/28 B60N 2/44

Claims (1)

(57) [Claims] 1. A seat for preventing a tether anchor hanger to which a tether anchor hook for supporting a child seat is engaged and a fall when the seat back and a seat cushion are folded and placed upright on a vehicle body floor. In a vehicle seat having a fall prevention band and the seat back respectively, a band member formed by disposing a boot member made of an elastic material around the seat fall prevention band is configured, and the tether anchor hanger and An automobile seat, wherein one end of the tether anchor hanger and one end of the band member is fixed to the seat back with the band member interposed between the seat back and the skin.