JP2011218899A - Seat device for absorbing shock of vehicle, seat device of the vehicle, and seat reclining device of the vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a conventional shock-absorbing seat rail has a structure comprised of an upper rail provided to a lower rail so as to be movable and an operating lever provided to the upper rail, and a structure where the upper rail is movably supported by the operating lever and the upper rail is configured to be movable in a collided situation (at the time of receiving an impact) by a compression of a movable member which is externally mounted to the operating lever, thereby reducing damages of the collision without degrading a restriction of a person on board, which means the structure is a shock-absorbing structure only using the seat and is less effective in its function.SOLUTION: A seat slide device of a vehicle includes a fixed rail, an intermediate rail, and a movable rail. This movable rail moves using the intermediate rail as a guide at the time of a frontal collision or a rear collision (at the time of receiving an impact). By the forward or rearward movement of the movable rail, a seat back inclines forward or rearward, and, at the same time, a seating part of the seat sinks. Therefore, the collision shock can be absorbed.

Description

  As is well known, there are various inventions related to “a seat device that cushions a vehicle at the time of impact, a vehicle seat device, and a vehicle seat reclining device”, and these multiple inventions will be described based on prior documents. To do.

  Document (1) is Japanese Patent Application Laid-Open No. 2005-324676, “Floor fixing structure for automobile seats” in which a vertical member extending in the running direction is provided on the lower surface of a floor panel, and a fixing bracket is fixed to the vertical member. An insertion bracket equipped with a fixture is provided, and the rear end of the seat frame is secured to the insertion bracket with the floor panel in between. The impact of the vertical member is reduced in the event of a collision. Intended to use and mitigate impact.

  Further, Document (2) is “Shock Absorption Seat Rail” of Japanese Patent Application Laid-Open No. 11-48842, and this invention relates to a movable rail (upper rail) movably provided on a fixed rail (lower rail), and the upper rail. The upper lever is supported by the operating lever so that it can move. The upper rail is moved by the compression of the movable member on the operating lever at the time of impact (when impacted). As a possible, it is intended to provide a structure that reduces the damage at the time of impact and does not impair the restraint of the occupant while adopting a simple structure.

  Further, Document (3) is “Automobile Seat” of Japanese Utility Model Laid-Open No. 4-95527, and this device is a combined structure of a lower rail and an upper rail of an upper and lower slider, and the upper rail of the upper slider is It is intended to move by the action of the cylinder at the time of impact and provide a buffering effect.

  Reference (4) is an “automobile seat” disclosed in Japanese Patent Application Laid-Open No. Hei 6-255414. In the present invention, a first pipe reinforcing material is added to a sliding device composed of a lower rail and an upper rail provided on a floor. The first pipe reinforcement is also delivered to the floor panel, and the second pipe reinforcement is delivered to the reclining device. Intended for protection.

  Further, there are various inventions regarding only the vertical movement (mechanism) of the seat, and the plurality of inventions will be described based on prior documents.

  Japanese Patent Application Laid-Open No. 2003-40002 “Seat Vertical Adjustment Device” of Document (5), in which the present invention is provided with front and rear links on the front and rear sides of the seat, and the front and rear links are individually movable by driving means. In this way, the front and rear sides of the seat move up and down simultaneously or individually. However, the present invention is merely a structure in which the seat is moved up and down, and is problematic in considering consideration of various collision loads and protecting a seated occupant.

  Further, it is “a vehicle seat vertical adjustment device” disclosed in Japanese Patent Application Laid-Open No. 2000-309239 in Document (6), and the present invention raises and lowers the front frame and the rear frame via a rod that moves forward and backward by a sector gear. The sector gear is structured to move the seat up and down. However, the present invention is merely a structure in which the seat is moved up and down, and is problematic in considering consideration of various collision loads and protecting a seated occupant.

  Furthermore, regarding the seat reclining mechanism, there are various inventions, and the present applicant has filed a number of applications, and a part thereof will be described based on the prior literature.

  This is a “seat reclining device” disclosed in Japanese Patent Application Laid-Open No. 2007-143603 in the literature (7). The present invention provides a link that regulates the movement of the spiral spring, and this link cooperates with the seat back frame. The link is adjusted by a gear mechanism, and the load on the spiral spring is reduced by utilizing the restriction of the link. Accordingly, the reclining mechanism is intended only to improve the durability of the spiral spring. Therefore, it is difficult to consider the various collision loads and to protect the seated occupant.

  Further, it is a “seat reclining device having a seatback load adjustment structure” of 2007-31935 of the document (8), and the present invention is based on the structure of the document (7) and is applicable to various collision loads. Consideration and protection of seated occupants are considered difficult.

JP-A-2005-324676 JP 11-48842 A 4-95527 JP-A-6-255414 JP2003-40002 JP 2000-309239 A JP2007-143603 JP2007-312935

  Documents (1) to (4) described above have a structure in which the seat is moved as it is and the seated seat is moved as it is at the time of impact, and remains a simple movement. Therefore, for example, it has the following problems. [I] It is not a structure that can protect the entire occupant's body (including the head). [B] Not enough for buffering damage (impact) at impact.

  On the other hand, in order to solve the problems [A] and [B], it is necessary to provide an active headrest (a structure in which the headrest is tilted forward and upward) in order to protect the most problematic head. However, another problem occurs as follows. [C] An extra mechanism is required to equip this active headrest. [D] Incurs an increase in cost.

  In References (5) to (8), it is difficult to consider the various collision loads described above and to protect the seated occupant.

In view of the above, the present invention intends to exhibit the following effectiveness against various collision loads.
[Ah] The movement of the seat member and the inclination of the seat back are linked, and the impact that occurs at the front and rear impacts and the damage to the entire body (body and head) due to this impact are absorbed by the seat member and the seat back. To do. In addition, this can eliminate the use of an active headrest.
[I] The impact on the head is absorbed by the movement of the seat back and the headrest synchronized therewith.
[U] The impact on the legs, the buttocks, and the buttocks is absorbed by the sinking of the seat member (seat cushion) (sinking to the base end side of the seat back).
[E] The seat position that matches the occupant's posture is secured through the vertical movement (up / down adjustment) of the seat.
[O] Through the return speed of the seat back and adjustment of the return load, provide a passenger-friendly seat, avoid injury caused by the seat, and the like.
[K] Simplify the up and down movement of the sheet by operating the lever, and secure the moving position of the sheet even when the lever is returned.
[3] Provide a seat back that gently controls the return of the seat back, avoids damage to people, and is friendly to the sick, elderly, or children.

  The invention of claim 1 is to achieve the above [a] to [e].

According to a first aspect of the present invention, a vehicle seat slide device includes a pair of fixed rails fixed to a body, a pair of intermediate rails slidably provided on the pair of fixed rails, and a pair of intermediate rails. It consists of a pair of moving rails that move at the time of impact,
The fixed rail and the intermediate rail have a structure that can be fixed at an appropriate position by an adjusting mechanism, and a moving mechanism that freely moves the intermediate rail and the moving rail at the time of impact is provided.
Between the moving rail and the reclining plate portion constituting the vehicle seat reclining device, an elevating mechanism for sinking the rear side of the vehicle seat is provided.
In addition, a tilting mechanism is provided between the moving rail and the reclining plate portion of the vehicle seat back so that the seat back is tilted backward or forward. The seat back is moved backward, and the seat back is moved forward when the vehicle is in a rear collision.
Further, the simultaneous operation of the moving mechanism, the lifting mechanism, and the tilting mechanism, the seat member and / or the seat back side of the seat sinks under the seat back when the seat member descends after a collision. In the seat device for buffering at the time of impact of the vehicle,
The seat device is configured to provide a cushioning mechanism at the time of impact of the vehicle, which is provided with a vertical movement mechanism that moves the intermediate rail and the moving rail up and down.

  The invention of claim 2 provides a seat vertical movement mechanism that is optimal and effective for achieving the above [a] to [e].

Claim 2 is a seat device for buffering at the time of impact of the vehicle according to claim 1,
The vertical movement mechanism includes a pair of drive-side link mechanisms pivoted between the pair of fixed rails and the pair of intermediate rails, and between the pair of fixed rails and the pair of intermediate rails. Each of the paired driven links, and the paired drive side link mechanism is connected to the fixed rail of the pair, the first link of the pair pivoted at one end, and the first link of the pair. A cam provided on each of the intermediate rails of the pair, and a cam provided on each of the pair of cams, respectively, and the other end of the first link of the pair. The outer peripheral surface of each of the rollers includes a roller that rolls and a connecting shaft that connects between the pair of rollers and that crosses the seat (seat frame), and the link mechanism on the driven side is connected to the fixed rail. One end was pivotally attached to the intermediate rail. A seat device to achieve a buffer during impact of the vehicle constructed in two links.

  The invention according to claim 3 provides the structure of the second link of the vertical movement mechanism of the seat which is optimal and effective for achieving the above [A] to [E].

Claim 3 is a seat device for buffering at the time of impact of the vehicle according to claim 2,
The vertical movement of the second link includes a lever provided with a fulcrum on the fixed rail, a trochanter provided on the lever, a groove provided on the first link into which the trochanter is inserted, and the lever. The seat device is configured by a stopper provided, and configured so that the second link rises by moving the groove of the trochanter by the operation of the lever so as to cushion the vehicle upon impact.

  The inventions of claims 4 and 5 are to achieve the [A] to [U] and [O].

According to a fourth aspect of the present invention, a vehicle seat slide device includes a pair of fixed rails fixed to a body, a pair of intermediate rails slidably provided on the pair of fixed rails, and a pair of intermediate rails. It consists of a pair of moving rails that move at the time of impact,
The fixed rail and the intermediate rail have a structure that can be fixed at an appropriate position by an adjusting mechanism, and a moving mechanism that freely moves the intermediate rail and the moving rail at the time of impact is provided.
Between the moving rail and the reclining plate portion constituting the vehicle seat reclining device, an elevating mechanism for sinking the rear side of the vehicle seat is provided.
In addition, a tilting mechanism is provided between the moving rail and the reclining plate portion of the vehicle seat back so that the seat back is tilted backward or forward. The seat back is moved backward, and the seat back is moved forward when the vehicle is in a rear collision.
Further, the simultaneous operation of the moving mechanism, the lifting mechanism, and the tilting mechanism, the seat member and / or the seat back side of the seat sinks under the seat back when the seat member descends after a collision. In the seat device for buffering at the time of impact of the vehicle,
The seat reclining device includes a reclining plate portion provided on the moving rail, a lever provided on the outside of the reclining plate portion via a spiral spring, and a cam portion that is locked to a hole of the reclining plate portion. An operation shaft, an operation shaft spring, a mounting bracket, and a pair of locking plates provided with a spring in a split shape located in the cam portion, in order from one end to the other end of the operation shaft; and A casing having a rectangular tube portion, and a seat frame mounting substrate provided in the rectangular tube portion, and a configuration in which both ends of the spiral spring are provided in the reclining plate portion and the seat frame mounting substrate. It is a seat device which aims at buffering at the time of an impact of a vehicle.

According to a fifth aspect of the present invention, a vehicle seat slide device includes a pair of fixed rails fixed to a body, a pair of intermediate rails slidably provided on the pair of fixed rails, and a pair of intermediate rails. It consists of a pair of moving rails that move at the time of impact,
The fixed rail and the intermediate rail have a structure that can be fixed at an appropriate position by an adjusting mechanism, and a moving mechanism that freely moves the intermediate rail and the moving rail at the time of impact is provided.
Between the moving rail and the reclining plate portion constituting the vehicle seat reclining device, an elevating mechanism for sinking the rear side of the vehicle seat is provided.
In addition, a tilting mechanism is provided between the moving rail and the reclining plate portion of the vehicle seat back so that the seat back is tilted backward or forward. The seat back is moved backward, and the seat back is moved forward when the vehicle is in a rear collision.
Further, the simultaneous operation of the moving mechanism, the lifting mechanism, and the tilting mechanism, the seat member and / or the seat back side of the seat sinks under the seat back when the seat member descends after a collision. In the seat device for buffering at the time of impact of the vehicle,
The seat reclining device includes a reclining plate portion provided on the moving rail, an operation shaft provided with a cam portion locked to a hole of the reclining plate portion, and from one end of the operation shaft to the other end in order. The provided operating shaft spring, mounting bracket, a pair of lock plates provided with springs in a split shape located in the cam portion, and a casing, and a seat frame mounting substrate provided in the square tube portion The seat is configured with a spiral spring mounted on the square tube portion of the mounting bracket, and the both ends of the spiral spring are provided on the reclining plate portion and the square tube portion so as to cushion the vehicle upon impact. Device.

  The invention of claim 6 provides a structure of a rectangular tube portion and a seat frame mounting board that is optimal and effective for achieving the above [a] to [u] and [o].

Claim 6 is a seat device for buffering at the time of impact of the vehicle according to claim 4 or claim 5,
In the seat device according to the present invention, the square tube portion and the seat frame mounting substrate are fixed to each other via a stopper so as to cushion the vehicle upon impact.

  The invention of claim 7 is to achieve the above [ka].

Claim 7 comprises a vehicle seat slide device comprising a pair of fixed rails secured to the body and a pair of intermediate rails slidably provided on the pair of fixed rails,
The fixed rail and the intermediate rail can be fixed at an appropriate position by an adjustment mechanism, and a vertical movement mechanism for moving the fixed rail and the intermediate rail up and down is provided.
The vertical movement mechanism includes a pair of drive-side link mechanisms pivotally attached between the pair of fixed rails and the pair of intermediate rails, and between the pair of fixed rails and the pair of intermediate rails. Each of the paired driven links, and the paired drive side link mechanism is connected to the fixed rail of the pair, the first link of the pair pivoted at one end, and the first link of the pair. A cam provided on each of the intermediate rails of the pair, and a cam provided on each of the pair of cams, respectively, and the other end of the first link of the pair. The outer peripheral surface of each of the rollers includes a roller that rolls and a connecting shaft that connects between the pair of rollers and that crosses the seat (seat frame), and the link mechanism on the driven side is connected to the fixed rail. One end was pivotally attached to the intermediate rail. A vehicle seat device constructed in two links.

  The invention of claim 8 is to achieve the above [ki].

According to an eighth aspect of the present invention, there is provided a pair of fixed rails fixed to a vehicle body, a pair of intermediate rails slidably provided on the pair of fixed rails, and a seat on the intermediate rail. A reclining device is provided,
The fixed rail and the intermediate rail can be fixed at an appropriate position by an adjustment mechanism, and a vertical movement mechanism for moving the fixed rail and the intermediate rail up and down is provided.
The seat reclining device includes a reclining plate portion provided on the intermediate rail, an operation shaft provided with a cam portion locked to a hole of the reclining plate portion, and from one end to the other end of the operation shaft in order. Provided are the operating shaft spring, the mounting bracket, a pair of lock plates with springs and a casing provided with a square tube portion, and a casing provided with a square tube portion. Seat frame mounting board and a spiral spring mounted on the square tube portion of the mounting bracket, and a vehicle seat having both ends of the spiral spring provided on the reclining plate portion and the square tube portion. It is a reclining device.

In the invention of claim 1, the vehicle seat slide device is fixed to a pair of fixed rails, a pair of fixed rails, a pair of intermediate rails slidably provided, and a pair of intermediate rails. It consists of a pair of moving rails that move at the time of impact,
The fixed rail and the intermediate rail have a structure that can be fixed at an appropriate position by an adjustment mechanism, and a moving mechanism that freely moves the intermediate rail and the moving rail at the time of impact is provided.
An elevating mechanism that sinks the rear side of the vehicle seat is provided between the moving rail and the reclining plate portion that constitutes the vehicle seat reclining device.
In addition, a tilting mechanism is provided between the moving rail and the reclining plate portion of the vehicle seat back so that the seat back can be tilted backwards or forwards. And when the vehicle crashes, the seat back will move forward,
Further, the vehicle is configured so that the seat member and / or the seat back side of the seat sinks under the seat back when the seat member descends by the simultaneous operation of the moving mechanism, the lifting mechanism, and the tilting mechanism. In a seat device that cushions at impact,
The seat device is configured to provide a vertical movement mechanism that moves an intermediate rail and a moving rail up and down to cushion a vehicle when an impact occurs.

Accordingly, claim 1 has the following characteristics.
[Ah] The movement of the seat member and the inclination of the seat back are linked, and the impact that occurs at the front and rear impacts and the damage to the entire body (body and head) due to this impact are absorbed by the seat member and the seat back. it can. This also eliminates the use of an active headrest.
[I] The impact on the head can be absorbed by the movement of the seat back and the headrest synchronized therewith.
[U] The impact on the legs, the buttocks, and the buttocks can be absorbed by the sinking of the seat member (seat cushion) (sinking to the base end side of the seat back).
[E] The seat position that matches the posture of the passenger can be secured through the vertical movement (up and down adjustment) of the seat.

According to a second aspect of the present invention, there is provided a seat device for buffering at the time of impact of the vehicle according to the first aspect.
The vertical movement mechanism is pivoted between a pair of driving-side link mechanisms pivoted between a pair of fixed rails and the pair of intermediate rails, and between a pair of fixed rails and the pair of intermediate rails. It is composed of the paired driven side link, and the paired drive side link mechanism is provided on the fixed rail of the pair, and the first link of the pair pivoted at one end and the middle of the first link of the pair. Each of which is pivotally attached to a pair of shafts, and each of the cams provided on each of the pair of intermediate rails is pivotally attached to each of the paired cams, and the outer peripheral surface of the other end of the first link of the pair is rolled. And a connecting shaft crossing the seat (seat frame) that connects between the pair of rollers, and the driven side link mechanism has one end on the fixed rail and the other end on the intermediate rail. A seat designed to provide shock absorption when the vehicle is composed of a pivoted second link. It is a device.

  Therefore, the second aspect of the present invention can provide a sheet vertical movement mechanism that is optimal and effective for achieving the above [A] to [E].

According to a third aspect of the present invention, there is provided a seat device for buffering at the time of impact of the vehicle according to the second aspect.
The second link is moved up and down by a lever provided with a fulcrum on the fixed rail, a trochanter provided on the lever, a groove provided on the first link into which the trochanter is inserted, and a stopper provided on the lever. The seat device is configured to cushion the vehicle at the time of impact with a configuration in which the second link rises when the trochanter moves in the groove by the operation of the lever.

  Accordingly, the third aspect of the present invention can provide the structure of the second link of the vertical movement mechanism of the seat that is optimal and effective for achieving the above [A] to [E].

  The inventions of claims 4 and 5 are to achieve the [A] to [U] and [O].

In the invention of claim 4, the vehicle seat slide device is fixed to a pair of fixed rails, a pair of fixed rails, a pair of intermediate rails slidably provided, and a pair of intermediate rails, It consists of a pair of moving rails that move at the time of impact,
The fixed rail and the intermediate rail have a structure that can be fixed at an appropriate position by an adjustment mechanism, and a moving mechanism that freely moves the intermediate rail and the moving rail at the time of impact is provided.
An elevating mechanism that sinks the rear side of the vehicle seat is provided between the moving rail and the reclining plate portion that constitutes the vehicle seat reclining device.
In addition, a tilting mechanism is provided between the moving rail and the reclining plate portion of the vehicle seat back so that the seat back can be tilted backwards or forwards. And when the vehicle crashes, the seat back will move forward,
Further, the vehicle is configured so that the seat member and / or the seat back side of the seat sinks under the seat back when the seat member descends by the simultaneous operation of the moving mechanism, the lifting mechanism, and the tilting mechanism. In a seat device that cushions at impact,
The seat reclining device includes a reclining plate portion provided on the moving rail, a lever provided on the outside of the reclining plate portion via a spiral spring, an operation shaft provided with a cam portion that is locked to a hole in the reclining plate portion, Provided in order from one end of the operation shaft to the other end, the operation shaft spring, the mounting bracket, and a split shape located in the cam portion, provided with a pair of lock plates with springs, and a square tube portion A seat configured to include a casing and a seat frame mounting substrate provided in the square tube portion, and to provide cushioning at the time of impact of the vehicle in which both ends of the spiral spring are provided in the reclining plate portion and the seat frame mounting substrate. Device.

In the invention of claim 5, the vehicle seat slide device is fixed to a pair of fixed rails, a pair of fixed rails, a pair of intermediate rails slidably provided, and a pair of intermediate rails. It consists of a pair of moving rails that move at the time of impact,
The fixed rail and the intermediate rail have a structure that can be fixed at an appropriate position by an adjustment mechanism, and a moving mechanism that freely moves the intermediate rail and the moving rail at the time of impact is provided.
An elevating mechanism is provided between the moving rail and the reclining plate portion of the vehicle seat back to sink the seat back side of the seat member constituting the vehicle seat,
In addition, a tilting mechanism is provided between the moving rail and the reclining plate portion of the vehicle seat back so that the seat back can be tilted backwards or forwards. And when the vehicle crashes, the seat back will move forward,
Further, the vehicle is configured so that the seat member and / or the seat back side of the seat sinks under the seat back when the seat member descends by the simultaneous operation of the moving mechanism, the lifting mechanism, and the tilting mechanism. In a seat device that cushions at impact,
The seat reclining device includes an operation shaft provided in order from one end of the operation shaft to the other end, an operation shaft provided with a reclining plate portion provided on the moving rail, a cam portion locked to a hole of the reclining plate portion. A shaft spring, a mounting bracket, a pair of locking plates provided with springs in a split shape located in the cam portion, a casing having a rectangular tube portion, and a seat frame mounting substrate provided in the rectangular tube portion; The seat device is configured with a spiral spring mounted on the square tube portion of the mounting bracket, and is configured to provide cushioning at the time of impact of the vehicle in which both ends of the spiral spring are provided on the reclining plate portion and the square tube portion.

Accordingly, claims 4 and 5 have the following features in addition to the features [A] to [U].
[O] There are features such as being able to provide a passenger-friendly seat through the return speed of the seat back and adjusting the return load, and avoiding injury caused by the seat.

The invention of claim 6 is a seat device for buffering at the time of impact of the vehicle according to claim 4 or 5,
The seat device is configured to cushion a vehicle at the time of impact, in which the rectangular tube portion and the seat frame mounting substrate are fixed via a stopper.

  Accordingly, the sixth aspect of the present invention can provide a structure of a rectangular tube portion and a seat frame mounting board that are optimal and effective for achieving the above [A] to [U] and [O].

  The invention of claim 7 is to achieve the above [ka].

The invention of claim 7 comprises a vehicle seat slide device comprising a pair of fixed rails secured to the body and a pair of intermediate rails slidably provided on the pair of fixed rails,
The fixed rail and the intermediate rail can be fixed at an appropriate position by an adjustment mechanism, and a vertical movement mechanism for moving the fixed rail and the intermediate rail up and down is provided.
The vertical movement mechanism is pivotally connected between the pair of fixed rails and the pair of intermediate rails, and between the pair of drive-side link mechanisms and the pair of fixed rails and the pair of intermediate rails. A pair of driven links, and a pair of drive-side link mechanisms provided on the pair of fixed rails, each paired with a first link having one end pivotally attached, and between the pair of first links. Rollers that are pivotally attached to the shafts and that are respectively attached to the pair of intermediate rails and the cams that are pivotally attached to the pair of cams and that roll on the outer peripheral surface of the other end of the first link of the pair. And a connecting shaft that crosses the seat (seat frame) that connects the pair of rollers, and the link mechanism on the driven side is pivotally attached to the fixed rail and one end to the intermediate rail. This is a vehicle seat device constituted by the second link.

  Therefore, the present invention has a feature that the vertical movement of the sheet can be easily achieved by operating the lever, and the moving position of the sheet can be secured even when the lever is returned.

According to the eighth aspect of the present invention, a vehicle seat slide device includes a pair of fixed rails secured to a body, a pair of intermediate rails slidably provided on the pair of fixed rails, and a seat on the intermediate rail. A reclining device is provided,
The fixed rail and the intermediate rail can be fixed at an appropriate position by an adjustment mechanism, and a vertical movement mechanism for moving the fixed rail and the intermediate rail up and down is provided.
The seat reclining device includes a reclining plate portion provided on the intermediate rail, an operation shaft provided with a cam portion that is locked to a hole in the reclining plate portion, and an operation shaft provided in this order from one end to the other end of the operation shaft. A shaft spring, a mounting bracket, a pair of locking plates with springs in a split shape located in the cam portion, a casing with a square tube portion, and a seat frame mounting board provided on the square tube portion And a spiral spring mounted on the square tube portion of the mounting bracket, and a reclining plate portion and a vehicle seat reclining device in which both ends of the spiral spring are provided on the square tube portion.

  Therefore, the present invention can provide a seat back that can gently control the return of the seat back, avoid injury to a person, and that is friendly to a sick person, an elderly person, or a child.

Scale schematic diagram with passengers seated on the seat Partial side view showing the main part of the seat Schematic plan view showing the main part of the sheet The main part conceptual diagram showing the relationship between the seat front frame front part, the seat frame main body, and the seat back in the normal state of the seat The main part conceptual diagram showing the relationship between the front part of the seat frame of the seat, the main part of the seat part frame, and the seat back at the time of the frontal collision of the seat Conceptual diagram of the main part showing the relationship between the seat front frame front, the seat frame main body, and the seat back at the time of the rear impact of the seat Overhead view of the main part with the seat in the lower position An overhead view of the main part with the seat frame main body removed with the seat in the lower position Overhead view of the main part with the seat in the upper position An overhead view of the main part with the seat frame main body removed with the seat in the upper position A partially omitted overhead view of FIG. The perspective view of the principal part explaining the state which is a 1st Example in the relationship between the lever which comprises a vertical movement mechanism, and a 2nd link, and a sheet | seat exists in a lower position. Ii enlarged sectional view of FIG. An enlarged exploded overhead view showing the main part of FIG. An enlarged exploded overhead view of the main part of FIG. Enlarged side view showing another example of support pins constituting the vertical movement mechanism An enlarged side view showing an example of the relationship between the support pin shown in FIG. 7-4-1 and the spring. Diagram showing the coupling gears that make up and down mechanism, the connection diameter ratio of the clutch plate and lever, and this combination pattern Chart showing an example of conditions for returning the levers that make up the vertical movement mechanism Chart showing an example of the relationship between the protrusion of the support pin that constitutes the vertical movement mechanism and the notch of the lever, the operation, etc. Enlarged schematic diagram showing the meshing inclination angle of the concavo-convex (teeth) of the coupling gear and the clutch plate concavo-convex (tooth), or the meshing inclination angle of the clutch plate concavo-convex and lever concavo-convex constituting the vertical movement mechanism The exploded perspective view of the principal part explaining the state which is a 2nd Example in the relationship between the lever which comprises a vertical movement mechanism, and a 2nd link, and a sheet | seat exists in a lower position. FIG. 4 is an exploded perspective view of the main part illustrating the state in which the seat is in the upper position in the relationship between the lever constituting the vertical movement mechanism and the second link, and the lever constituting the vertical movement mechanism and the second link Exploded perspective view of the main part explaining the relationship with the link Cross-sectional view of the main part showing the normal state of an example of the first shock absorber Cross-sectional view of the main part showing the state of the first shock absorber at the time of a front collision Cross-sectional view of the main part showing the state of the first shock absorber at the time of rear impact An enlarged cross-sectional view showing an example of the second shock absorber or the third shock absorber Side surface schematic diagram showing an example of a normal seat of a vehicle equipped with an active headrest on a seat equipped with a seat slide device Side surface schematic diagram showing an example of a vehicle seat equipped with an active headrest on a seat equipped with a seat slide device in a front collision state Side schematic diagram showing an example of a vehicle seat equipped with an active headrest on a seat equipped with a seat slide device in the state of a rear-end collision. This is a first embodiment of the seat reclining device, as seen from the outside of the seat This is the first embodiment of the seat reclining device, as seen from the inside of the seat 11-1 is an overhead view with the lever and cover removed. Disassembled overhead view of the first embodiment of the seat reclining device Side view of the first embodiment of the seat reclining device as seen from the inside of the seat End face schematic diagram across the first embodiment of the seat reclining device Schematic diagram of the end face of the second embodiment of the seat reclining device An enlarged overhead view showing an example in which the first embodiment of the seat reclining device is attached to a seat frame (frame frame for seat). An enlarged overhead view showing another example of attaching the seat reclining device to the seat frame according to the first embodiment. Exploded overhead view showing seat reclining on one side in the third embodiment of the seat reclining device FIG. 17-1 is an overhead view showing a partially assembled state Exploded overhead view showing the seat reclining on the other side in the third embodiment of the seat reclining device Sectional drawing which shows the assembly | attachment state of FIGS. A diagram showing the relationship between the impact amount (load weight) and the time (distance) of the conventional seat device and the seat device of the present invention, so-called shock buffering characteristics. FIG. 4 is a schematic diagram of a fourth embodiment in which a vertical movement mechanism of the present invention and a seat reclining device are provided on a conventional seat device, and a passenger is seated on the seat device.

  In the figure, reference numeral 1 denotes a seat slide device provided on a vehicle body (floor 2). The seat slide device 1 is fixed to the floor 2 with a ridge 100a and double grooves 100b and 100b (a pair is explained on the other hand, A pair of fixed rails 100, a pair of intermediate rails 101 slidably provided on the pair of fixed rails 100, and a pair of the pair of intermediate rails 101 that move upon impact. The moving rail 102 is configured. The fixed rail 100 and the intermediate rail 101 are controlled by manual or automatic operation stoppers 103 and can be fixed at appropriate positions (adjustment mechanism). Further, a guide means 104 is provided between the intermediate rail 101 and the moving rail 102 to ensure reliable movement and prevention of backlash.

  The seat slide device 1 includes a moving mechanism A (first shock absorber 5) that controls the movement of the seat 3 (seat member) in the front-rear direction at the time of impact, and the seat 3 (a seat main frame 302 described later). An elevating mechanism B (second shock absorber 10) that sinks, and a tilting mechanism C (third shock absorber 8) that controls forward and backward tilting of the seat back 7 are provided.

  Hereinafter, the moving mechanism A, the lifting mechanism B, and the tilting mechanism C will be described.

  The seat 3 is positioned between the seat frame frame 300 (supported by the moving rail 102) provided at the left and right corners 3a of the seat 3 and the seat frame frame 300 between the front ( Between the seat frame front portion 301 provided in the traveling direction), the seat frame main body 302 that holds the butt of the occupant (becomes a seating portion), and the seat frame frame 300. The seat rear frame 303 is provided, and a skin 304 covering them. Note that the seat frame front portion 301 and the seat frame rear portion 303 and the seat frame frame 300 are each fixed with a one-touch structure via an engagement means or a fitting means (not shown), or Removed. As this locking means, for example, although not shown, a receiving piece provided with one or a plurality of receiving claws at the ends in the width direction of the seat front and rear portions 301 and 303 is opposed to this. The seat frame frame 300 is provided with an insertion space, and there is a structure in which each receiving claw is fitted to each insertion space and the insertion piece. The seat frame frame 300 is fixed to the seat frame front and rear portions 301 and 303, and the seat frame front and rear portions 301 and 303 and the seat frame frame 300 are used for the seat. The frame main body 302 is supported.

  The moving mechanism A will be described. The moving mechanism A controls the movement of the moving rail 102 at the time of impact, and has a function of reliably absorbing the impact. Accordingly, the moving mechanism A is, for example, the first shock absorber 5 and is integrated and integrated into the intermediate rail 101 in the frame. This first shock absorber 5 is composed of two compartmented nested chambers and a needle valve provided on the partition wall of the two chambers, and at the time of impact, air, Or it is set as the structure which absorbs an impact because a fluid moves. In addition, an auxiliary facility such as a spring for returning the needle valve or a silencer is provided. A desirable first shock absorber 5 will be described with reference to FIGS. 7A to 7C. The first shock absorber 5 includes a protruding piece 101a of the intermediate rail 101 and a dome 102a bulged on the moving rail 102. The casing 500 having two chambers accommodated in the casing 500, and the casing 500 has two chambers 501 and 502 that expand and contract. Then, an air discharge hole 503 opened in one part 501 of the two rooms 501 and 502, a silencer 504 provided in the casing 500, and the other room 502 of the two rooms 501 and 502 of the casing 500 And a valve body 505 that adjusts the flow of air in the other chamber 502, a venturi section 506 through which the valve section 505a of the valve body 505 enters and exits, and a casing 500 that controls the return of the valve body 505 and the valve A spring 507 is provided between the body 505 and the body 505. Although not shown, in another embodiment of the above-described embodiment, in this another embodiment, the first shock absorber 5 is basically the same as the first shock absorber 5 described above. In order to achieve stability, a flexible tip is formed in the outer body constituting the room 501, and a spring 507 can be inserted (inserted) and retracted (removed) into the flexible tip. And a packing for sealing the flexible tip. It is also possible to adopt a structure in which the moving rail 102 is made of a flexible member, or a structure in which shock absorbing means is provided on a part of the moving rail 102 (hereinafter the same).

  The operation (movement) of the moving mechanism A will be described with reference to the temporary location 102-1 of the moving rail 102 as a base point in the examples illustrated in FIGS. 7-1 to 7-3, for example. In FIG. 7A showing the first normal time, the temporary location 102-1 is on the reference line X, the venturi 506 has the valve portion 505a of the valve body 505, and the rooms 501 and 502 are in a normal state. The rooms 501 and 502 are accommodated between the projecting piece 101a and the dome 102a, the air does not move between the rooms 501 and 502, and the spring 507 is in a normal state. In FIG. 7-2 showing a front collision, the room 502 is pressed on the rear side (right side in FIG. 7-1) of the dome 102a, and moves forward (hereinafter omitted) from the reference line X in the traveling direction. The rooms 501 and 502 are compressed. A gap is formed between the front side of the dome 102a (left side in FIG. 7-1) and the room 501. In this state, the valve section 505a of the valve body 505 protrudes from the venturi section 506, and at the same time, the air in the room 502 moves to the room 501, and this air enters the room 502 through the discharge hole 503 (not shown). Returned or discharged out of the casing 500 and the spring 507 is compressed. Further, in FIG. 7-3 showing the time of the rear collision, the room 502 is pressed on the front side of the dome 102a and moves rearward (hereinafter, omitted) in the traveling direction from the reference line X, and the rooms 501 and 502 are moved. Is compressed. A gap is formed between the rear side of the dome 102 a and the room 502. In this state, the valve section 505a of the valve body 505 protrudes from the venturi section 506, and at the same time, the air in the room 502 moves to the room 501, and this air enters the room 502 through the discharge hole 503 (not shown). Returned or discharged out of the casing 500 and the spring 507 is compressed. In the above example, the shock is adjusted (relaxed) by the movement of air between the rooms 501 and 502 and the expansion and contraction of the spring 507. However, the present invention is not limited to this example and is not shown, but either one is possible.

  The tilt mechanism C includes a first support plate 13 erected slightly rearward from the approximate center of the moving rail 102, a lower end of the back frame 7-1, or a reclining plate portion 705a to be described later of the seat back 7. The third shock absorber 8 is provided between the second shock absorber 10 and the second shock absorber 10 to be described later. The third shock absorber 8 acts at the time of collision, and has a structure in which the seat back 7 is tilted forward or backward, and protects the back H1 and the head H2 of the person H.

  And the said raising / lowering mechanism B utilizes the 2nd shock absorber 10 shown in FIG. The second shock absorber 10 includes a first stopper 11 erected substantially at the center of the intermediate rail 101 (the same applies to the following when viewed from the side) and a seat frame main body 302 facing the first stopper 11. Is provided between the second stopper 12 and the second stopper 12 that hangs down substantially at the center. Explaining the second shock absorber 10 when the elevating mechanism B expands and contracts, the second shock absorber 10 is divided and formed with a pair of casing pieces 1000a and 1000b that move in opposite directions, respectively, The air discharge hole 1003 opened in one of the two rooms 1001 and 1002 of the casing 1000, the silencer 1004 provided in the casing 1000, and the other room 1002 of the two rooms 1001 and 1002 of the casing 1000. And a valve body 1005 that adjusts the flow of air in the other chamber 1002, a venturi section 1006 through which the valve section 1005 a of the valve body 1005 enters and exits, and the casing 1000 that controls the return of the valve body 1005. Between the valve body 1005 Constituted by a spring 1007 which is provided. Then, the tip 1000a1 of the casing piece 1000a is pivotally attached to the first stopper 11 or the second stopper 12, and the tip 1000b1 of the casing piece 1000b is connected to the second stopper 12. Or it is the structure pivotally attached to the first stopper 11.

  Next, the operation (movement) of the elevating mechanism B will be described with the seat 3 in FIG. The seat 3 is at the reference line Y of the normal place 3-1, the venturi portion 1006 has the valve portion 1005a of the valve body 1005, the chambers 1001 and 1002 are in a normal state, and the chambers 1001 and 1002 are slide fitted. The air is not moved between the chambers 1001 and 1002 and the spring 1007 is in a normal state. Also, in FIG. 4-2 showing the front collision time, this part 3-1 has one of the casing pieces 1000 b (or the casing piece 1000 a, hereinafter referred to as this casing piece 1000 b) moved, and the room 1002 is Compressed and moved forward from the reference line Y. In this state, the valve portion 1005a of the valve body 1005 protrudes from the venturi portion 1006. At the same time, the air in the room 1002 moves to the room 1001, and this air Although not shown, the discharge hole 1003 returns to the room 1002 or is discharged out of the casing 1000 and the spring 1007 is compressed. And in FIG. 4-3 which shows the time of a rear collision, in this part 3-1, either one casing piece 1000b moves to the maximum, the room 1002 is compressed, and moves back from the reference line Y. In this state, the valve part 1005a of the valve body 1005 protrudes from the venturi part 1006. At the same time, the air in the room 1002 moves to the room 1001, and this air is not shown in the figure from the exhaust hole 1003, although not shown. Or is discharged out of the casing 1000 and the spring 1007 is compressed to the maximum. The slide fitting 1008 is provided at both end portions 1000a1 and 1000b1 of the casing pieces 1000a and 1000b constituting the casing 1000, and functions as a guide when the casing pieces 1000a and 1000b move relative to each other.

  In the above example, since the casing piece 1000b is moved by the movement of the seat 3 in the front-rear direction at the time of collision (moving mechanism A), the seat 3 is moved by the movement of air between the chambers 1001 and 1002 and the expansion and contraction of the spring 1007. To adjust (relax) the shock. However, the present invention is not limited to this example, and although not shown, other shock absorbers, expansion / contraction by a link mechanism, or a cylinder can also be employed.

  The movement of the tilting mechanism C is basically the same as that of the lifting mechanism B described above, and is omitted. However, the tilting mechanism C moves the seat 3 in the front-rear direction at the time of rear collision (moving mechanism A). Accordingly, the first support plate 13 provided on the intermediate rail 101 moves, and the reclining plate portion 705a is moved (tilted) by the movement of air between the rooms and the expansion and contraction of the spring, and the seat back 7 is tilted forward and backward. And adjust (mitigate) shock. Although the tilt mechanism C is not shown in the figure, as with the elevating mechanism B, it can be applied to other shock absorbers, expansion / contraction by a link mechanism, or a cylinder.

  Although the second shock absorber 10 and the third shock absorber 8 have the same structure in consideration of the manufacturing aspect, the price aspect, etc., they are only examples and are not necessarily limited to the same structure.

  In the figure, 15 is a pulley provided on the reclining side (rear end portion 302b) of the seat main body 302, and this pulley 15 is a guide shooter provided on the rear side of the moving rail 102 (seat frame rear portion 303). 16, specifically, this pulley 15 is the upper end of the guide shooter 16 in the normal state of FIG. 4-1, and for the seat portion at the time of the front collision of FIG. 4-2. In the state where the seat main body 302 is sunk, the seat shooter 16 is detached from the lower end of the guide shooter 16 when the seat main body 302 is sunk to the maximum at the lower end of the guide shooter 16 and at the time of the rear impact of FIG. Then, it will be in a situation of sinking below the reclining plate portion 705a described later.

  Therefore, the movement of the moving mechanism A, the lifting mechanism B, and the tilting mechanism C (each of which is a pair, but will be described on the other hand, the same applies hereinafter) and the movement of the seat back 7 (back frame 7-1) are combined. explain. For example, a description will be given with reference to FIGS.

  First, in FIG. 4A showing a normal state, the moving rail 102 and the first shock absorber 5 constituting the moving mechanism A are the reference line X (the first shock absorber 5 is in a non-acting state), and The first support plate 13 is at the reference line Z of the moving rail 102, and the other end of the third shock absorber 8 of the tilting mechanism C and the reclining plate portion 705a of the seat back 7 are located at the lowermost end. Further, the pulley 15 provided at the rear end portion 302 b of the seat portion seat main body 302 is positioned at the uppermost end of the guide shooter 16. Accordingly, the seat back 7 is in the “A” position shown in the figure. In this state, the lifting mechanism B is at the reference line Y, and the first stopper 11 of the lifting mechanism B is at the reference line Y of the intermediate rail 101, and the second shock absorber 10 of the lifting mechanism B does not act. It is in a state. The seat frame main body 302 is in a substantially horizontal state, and the tip end portion 302 a is inserted into the insertion portion 301 a of the seat frame front portion 301.

  In this state (FIG. 4A), when a front collision occurs, in FIG. 4B, the moving rail 102 and the first shock absorber 5 constituting the moving mechanism A move forward from the reference line X (the first shock absorber 5 is In addition, the first support plate 13 has advanced from the reference line Z, and the other end of the third shock absorber 8 of the tilting mechanism C and the reclining plate portion 705a are slightly raised from the lowermost end. In the middle position. Further, the pulley 15 provided at the rear end 302 b of the seat main body 302 is positioned at the lower end of the guide shooter 16. Accordingly, the seat back 7 is at the “B” position shown in the figure. In this state, the lifting mechanism B is at the reference line Y, and the first stopper 11 of the lifting mechanism B is at the reference line Y of the intermediate rail 101, and the second shock absorber 10 of the lifting mechanism B is compressed. It becomes a state. In addition, the seat frame main body 302 is in a depressed state in which the rear end portion 302b is lowered (a state in which the seat 3 is depressed), and a front end portion 302a is a lower portion of the insertion portion 301a of the seat frame front portion 301. Down. In this way, the back end side of the seat 3 sinks to protect the back portion H1 of the person H, and the seat back 7 falls backward (tilts backward) to protect the back portion H1 of the person H (this The impact at the time of the front impact is eliminated. The lower part of the insertion part 301a is supported by the lower piece 301b when it is provided on the lower side, and the lower piece 301b is provided obliquely upward at the upper part of the inner surface of the seat frame front part 301. Supported by the protruding piece 301c.

When the rear collision occurs from FIG. 4-1, in FIG. 4-3, the moving rail 102 and the first shock absorber 5 constituting the moving mechanism A are retracted from the reference line X (the first shock absorber 5 operates). In addition, the first support plate 13 is retracted from the reference line Z, and the other end of the third shock absorber 8 of the tilting mechanism C and the reclining plate portion 705a are at the lowermost end and are mainly seat seat seats. The rear end portion 302 b of 302, the pulley 15 and the guide shooter 16 are in a state of being submerged in the seat back 7. Since the reclining plate portion 705a is located at the lower end, the seat back 7 is tilted forward and is in the “c” position shown in the figure. In this state, the lifting mechanism B is at the reference line Y, and the first stopper 11 of the lifting mechanism B is at the reference line Y of the intermediate rail 101, and the second shock absorber 10 of the lifting mechanism B is maximized. It is in a compressed state. The seat frame main body 302 has the rear end portion 302b in the most depressed state (the seat 3 is in the most depressed state), and the leading end portion 302a is inserted into the seat frame front portion 301. Lower the lower part of the part 301a. Thus, the back end H1 of the person H is protected by sinking the rear end side of the seat 3, and the back H1 of the person H is protected by the seat back 7 falling forward (tilting forward). Further, in this example, the headrest 40 protects the head H2 by the sinking of the person H (the same environment as the headrest 40 ascends due to the sinking) (the seat back 7 moves forward). This is the same effect and environment as the headrest 40 is tilted forward). The lower part of the insertion part 301a is supported by the lower piece 301b when it is provided on the lower side, and the lower piece 301b is provided obliquely upward at the upper part of the inner surface of the seat frame front part 301. 18 is a seat belt supported by the projecting piece 301c. The buckle 1800 of the seat belt 18 is fixed to the end of the seat frame main body 302, and the upper portion of the seat belt 18 is The guide piece 305 provided on the shoulder of the seat 3 is inserted and supported. A conventional example in which the upper portion is provided on the center pillar of the vehicle is also possible. The buckle 1800 moves up and down as the seat frame main body 302 moves up and down.

  Next, the vertical movement mechanism D will be described. First, in the example shown in FIGS. 7-1 to 7-4-5, the vertical movement mechanism D is provided between the fixed rail 100 and the intermediate rail 101 on the advancing side (vehicle traveling direction side), and the mountain portion. 100a, the drive-side link mechanism D1 provided on the shafts 20 and 20a passed to the pair of grooves 100b, the fixed rail 100 and the intermediate rail 101 between the rear end sides, and the peak portion 100a. The driven-side link mechanism D2 provided on the shafts 21 and 21a passed to the pair of grooves 100b, and the lever mechanism D3 that operates the drive-side link mechanism D1. The link mechanism D1 on the drive side includes a pair of second links 22 having a pipe shape having a sliding surface 2200 on the upper arcuate side provided on the shaft 20, and an arc recess 2201 provided on the second link 22. A connecting rod 27 having a protrusion 2500 to be fitted and supported by the second link 22 and having a side surface connected to the moving rail 102 and the left and right cams 25. And a roller 26 provided at the end of the connecting rod 27 and provided with a slip prevention means. The roller 26 has a structure that rolls on the sliding surface 2200 of the second link 22. The connecting rod 27 is penetrated through the long hole 102c of the moving rail 102, and has a structure that does not hinder the moving rail 102 even if it moves during an impact. The link mechanism D2 on the driven side is a pair of first links 28 having one end provided on the shaft 21 and the other end pivotally supported on the intermediate rail 101. The lever mechanism D3 of the link mechanism D1 on the driving side includes one or a plurality of lever mechanisms 30 provided with a through hole 3000 provided with a notch 3001 provided in a pair on a diagonal line, and a through hole 3000 of the lever. It is comprised by the following member supported in order (it is the order from the sheet | seat 3 side) to this support pin 31 with the latching site | part at the front-end | tip inserted by the cam 25, and the support pin 31 provided with the processus | protrusion 3100. To do. In other words, a wave washer 32 having a notch 3200 that takes into account or separates from the outer surface of the cam 25 and has a notch 3200 in consideration of load resistance (there is also a structure without the notch 3200 in consideration of the reliability of transmission force), and the wave washer 32. A connecting gear 33 having a boss portion 3300 that contacts or separates from the wave surface of the lens (means for restricting the movement of the connecting gear 33 to the outside of the seat 3, for example, a support pin 33 is provided with a stepped portion 3300 and a protrusion. The coupling gear 33 is always urged to the outside of the seat 3 by a wave washer 32, and this urging ensures the vertical position of the seat 3 when the lever 30 is stopped and returned). The clutch plate 35 provided with the projections and depressions 3500 fitted to and removed from the projections and depressions 3302 on the side surface of the gear 33, and the cover 305 that locks the lever 30 are engaged That constituted by the spring 36. In this configuration, by rotating the lever 30, the relationship between the notch 3001 and the protrusion 3100 of the support pin 31 is released, and the inclined cam portion 3002 of this lever 30 (provided around the through-hole 3000, When the protrusion 3100 of the support pin 31 is pressed in the direction of the sheet 3, the unevenness 3003 on the inner surface of the lever 30, the unevenness 3500 on one side of the clutch plate 35, and the clutch plate 35 The unevenness 3500 on the other side and the unevenness 3302 on the side surface of the connecting gear 33 are respectively fitted. With each of these fittings, the connecting gear 33 rotates. As the connecting gear 33 rotates, the roller 26 that meshes with the tooth portion 3303 of the connecting gear 33 rotates. Then, the rotation of the roller 26 causes the second link 22 itself to stand up with the shaft 20 as a fulcrum through the tooth portion 2200a of the sliding surface 2200 that meshes with the tooth portion 2600 of the roller 26. The rising of the second link 22 itself, the movement of the roller 26, and the pushing up of the connecting gear 33 by the roller 26 (the connecting rod 27) (the protrusion 2500 of the cam 25 and the arc recess 2201 of the second link 22) (This fitting 2500 is guided and moved by the arc recess 2201). When the projection 3100 is inserted into a notch (not shown) when it rises in this way, the cover 3005 (lever 30) returns to the side opposite to the seat 3 and the clutch plate 35 is synchronized. The engagement between the unevenness 3500 of the clutch plate 35 and the tooth portion 3303 of the connecting gear 33 is released. Subsequent to the release of the engagement, when the engagement of the tooth portion 3303 of the connecting gear 33 and the roller 26 is released, the inclined cam portion 3002 of the lever 30 is slid down. By this sliding down, the lever 30 returns to the original position. With this return, the restriction on the wave washer 32 is released, the wave washer 32 is repelled, the clutch plate 35 is separated from the connecting gear 33, and the reaction force of the wave washer 32 is connected to the cam 25. By generating between the boss portion 3300 of the gear 33 and stopping the connecting gear 33 at a predetermined position and stopping the roller 26 and the connecting rod 27, the rising position of the seat 3 is fixed. The operation of lowering (lowering) the seat 3 is the reverse of the upward operation, and the movement of each member is also reverse (by the repulsion of the spring 36), and the description thereof is omitted. The spring 36 is provided between the square shaft portion of the support pin 31 and the locking piece (not shown) of the lever 30 as shown in FIGS. 7-3-1 and 7-3-2. Controls the return of the lever 30. The structure shown in FIG. 7-4-1 is an alternative to the protrusion 3100 of the support pin 31, and a locking pin 3102 is provided on the collar piece 31a so as to be able to appear and retract. The locking pin 3101 has a structure that is returned by a spring 3102. The locking pin 3101 is inserted into the notch 3001 of the lever 30.

  The charts shown in FIGS. 7-4-3-1 to 7-4-3-3 are examples of mechanisms and operations of various parts constituting the vertical movement mechanism, lift amounts, conditions, and the like. Chart A shows examples of setting conditions of the diameters of the coupling gear 33, the clutch plate 35, and the wave washer 32, and combinations thereof. 2 is preferred. Table B shows examples of conditions and combinations of the spring 36, the wave washer 32, and the clutch plate 35, and combinations thereof. The conditions for the load when the clutch plate 35 is connected and the angle of the lever 30 are shown. is there. Further, Chart C shows a relationship between the lever 30 and the protrusion 3100 of the support pin 32, and shows each operation of the lever 30 and its condition setting. 7-5 shows the meshing angle of the unevenness 3302 (teeth) of the coupling gear 33 and the unevenness 3500 (teeth) of the clutch plate 35 (or the unevenness 3500 of the clutch plate 35 and the unevenness 3003 of the lever 30). As shown in the figure, use an asymmetric relationship, a symmetrical relationship, or a tilt angle relationship in which the angle in the ascending direction (circumferential direction) is tight and the angle in the descending direction (return direction) is loose. To do. The purpose is to make effective use of the load when the lever 30 is operated and returned.

  Further, the lever mechanism D3 of the link mechanism D1 on the driving side includes a lever 30 pivotally supported on the fixed rail 100 via the shaft 20 in FIG. 7-6 and another example shown in FIG. 30 and a shaft 20 a that supports the second link 22. Therefore, by releasing the lock mechanism 3004 of the lever 30 and operating upward, the second link 22 rises, and at this rise, the tooth portion 2200a of the sliding surface 2200 of the second link 22 is The tooth portion 2600 of the roller 26 meshes and rolls. With the rolling of the roller 26, the cam 25 on which the roller 26 is supported is lifted. In synchronization with the rising of the second link 22, the first link 28 rises with the shaft 21 as a fulcrum. After that, by tightening the lock mechanism 3004 provided on the lever 30, the position of the lever 30 is stopped, and the positions of the second link 22 and the cam 25 are also fixed. With this fixing, the seat 3 rises. Further, since the lowering of the seat 3 can be easily performed by the above-described substantially reverse operation, the description thereof is omitted. In addition, as described above, the vertical movement mechanism D of the sheet 3 described above is an example, and a mechanism for moving the sheet 3 up and down by other means or means by other mechanisms can also be adopted. Further, the vertical movement mechanism D of the seat 3 is not limited to the driver's seat, but can be adopted for other seats 3.

  Next, the seat reclining device E will be described. The seat reclining device E is the same as that of the first embodiment shown in FIGS. 11-1 to 14 or the second embodiment of FIG. ], A mounting bracket 700 provided on the moving rail 102, a lever 702 provided on the outside 700a of the mounting bracket 700 (recliner bracket for mounting) via a spiral spring 701, and a hole 700b of the mounting bracket 700. An operating shaft 703 having a cam portion 703a, and an operating shaft spring 704 and a connecting shaft 705 (reclined of the connecting shaft 705) provided in this order from one end 703-1 to the other end 703-2 of the operating shaft 703. One end of the third shock absorber 8 is attached to the plate portion 705a), and the cam portion 703 A pair of lock plates 707 and 707 having springs 706 and 706 (the lock plate 707 is restored by the repulsive force of the springs 706), and a casing 708 having a square tube portion 708a, Further, the seat frame mounting board 709 provided on the rectangular tube portion 708a is configured, and both ends of the spiral spring 701 are provided on the projection 700c of the mounting bracket 700 and the projection 709a of the seat frame mounting board 709, which are described above. Are assembled and integrated in the order described above (see FIGS. 11A to 11C). The seat reclining device E is provided on each of the left and right sides of the seat 3, and a connecting rod 710 is provided between the left and right square tube portions 708a, so that the movement on one side is transmitted to the other side. The In the drawing, reference numeral 711 denotes a stopper for fixing the seat frame mounting substrate 709 attached to the rectangular tube portion 708a. This stopper 711 has the U-shape shown in FIGS. 16-1 and 16-2. The plate shape shown in FIGS. 17-1 and 17-2 is fitted to the seat frame mounting board 709. In this embodiment, by operating the lever 702, the operation shaft 703 rotates, and the lock plate 707 is fitted to the inner peripheral surface of the casing 708 by the cam portion 703a, and the square tube portion 708a of the casing 708 is fitted. The seat frame mounting board 709 and the seat back 7 attached to the seat back 7 are ensured to move backward or forward, and the spiral spring 701 is tightened to ensure the return of the seat back 7. When the lever 702 is released, the operating shaft 703 rotates reversely by the repulsive force of the operating shaft spring 704, the restriction of the lock plate 707 is released by the cam portion 703a, and the lock plate 707 returns to the base position. In addition, the seat frame mounting substrate 709 and the seat back 7 are separated from the inner peripheral surface of the casing 708, and are stopped by a stopper mechanism (not shown) at the movement destination. After that, when the lever 702 is operated in the same manner and the stopper mechanism is released, the structure is returned to the position by the repulsive force of the spiral spring 701. In the third embodiment shown in FIGS. 18-1 and 18-2, or the fourth embodiment shown in FIG. 19, the spiral spring 701 has a protrusion (not shown) of the rectangular tube portion 708a and a protrusion (not shown) of the mounting bracket 700 (not shown). (Not labeled)) [Embodiment of claim 5]. Other structures conform to the first and second embodiments described above.

  Moreover, the headrest apparatus F has the Example shown to FIGS. 10-1 to 10-3. The headrest device F of this embodiment is fixed at one end to a headrest 40 (to be described later) provided on the upper surface of the seat back 7 and the moving rail 102 of the seat 3 of this vehicle or its column 102b and fixed to the fixed rail 100 or the like. A pair of pulleys 43, 43 (denoted 43) and a tension pulley 43a provided on the back frame 7-1 (for holding tension for connecting means 41 described later or for guiding), the seat A connecting means 41 that rises along the back 7 (back frame 7-1) and reaches the middle of the back frame 7-1, and a stretched elastic body having one end at the other end of the connecting means 41 ( A spring 42), a movable plate 44 pivotally supported by the back frame 7-1 that locks one end at the other end of the spring 42, and bent downwardly pivotally supported by one end of the movable plate 44. Part 45a (front A bend portion useful for) a headrest stay 45, a headrest 40 provided on the headrest stay 45, a headrest bracket 47 fitted on the headrest stay 45 and provided on the back frame 7-1, and the headrest bracket 47 A box 48 provided above the back frame 7-1, and a spring 53 provided in the box 48 for controlling the headrest support 49, and the headrest support 49. And a headrest raising and forward tilting structure comprising the headrest support 49 and the forward tilting means 50 that controls the forward tilting of the headrest stay 45. Note that a locking tool 41 a is provided at one end of the connecting means 41, and this locking tool 41 a is provided movably on the moving rail 102. Therefore, even if the intermediate rail 101 and the moving rail 102 move during adjustment of the driving position or swinging during normal operation, the movement of the connecting means 41 is not hindered. On the other hand, at the time of a collision, the locking tool 41a is detached from the moving rail 102 and stopped (locked) between the pulleys 43 (see FIG. 10-1).

  The other embodiment is a structure that eliminates an impact at the time of rear collision, raises the headrest 40, and tilts forward, and functions, for example, when the vehicle retreats from the reference line Q at the time of rear collision. That is, when the moving rail 102 is retracted, the locking tool 41a is separated, and the connecting means 41 and the spring 42 are loosened, so that the movable plate 44 is moved clockwise, the headrest stay 45 is raised, 10-1 to 10-2 through the bent portion 45a of the headrest stay 45 and the forward tilting means 50 attached to the headrest support 49, and the headrest 40 is raised (N1 to N2), In addition, the locking tool 41a is separated, stops between the pulleys 43, and the headrest 40 tilts forward (from D1 to D2). Through this series of operations, the impact at the time of rear collision is eliminated.

  The forward tilting means 50 in this example is composed of a cap 51 that is fitted to the headrest support 49, and a protrusion 52 that is provided below the outer peripheral surface of the cap 51. As a fulcrum, when the cap 51 is lifted, the structure that assists the forward tilting at the same time is achieved, and the lifting and the forward tilting are achieved at the same time.

  Further, when the cap 51 is raised, a spring 53 is provided between the cap 51 and the headrest bracket 47 so that the raised cap 51 is restored by the repulsive force of the spring 53. Secure. Further, as a position determination when the movable plate 44 is returned, a stopper 55 is provided on the back frame 7-1. The return of the headrest 40 can be achieved by the return of the moving rail 102, the pulling of the connecting means 41 in the return direction, the tension of the spring 42, and the return of the movable plate 44 and the like. Further, the headrest 40 is in an initial state through the return of the headrest stay 45, the headrest support 49 and the cap 51 and the repulsive force of the spring 53.

  The embodiment of the headrest device F has a structure in which the headrest device F is operated by using the movement of the moving rail 102 at the time of impact. The seat slide device 1 described above is used, and the impact at the time of rear impact is achieved. To solve common problems.

  Further, the seat lock / unlock mechanism G for fixing the fixed rail 100 and the intermediate rail 101 will be described. The support plate 60 provided between the intermediate rails 101 is provided on the left and right sides of the support plate 60. The lock rods 61 and 61 which appear and disappear, the cam plate 62 pivotally attached to the upper surface of the support plate 60 for operating the lock rod 61, and the lever 64 provided on the front surface of the seat 3 for operating the cam plate 62, Consists of. A protrusion that fits into the hole 100c of the fixed rail 100 is provided at the tip of the lock rod 61 (passing through the intermediate rail 101 or using the gap). In this embodiment, the lock rod 61 appears and disappears by operating the lever 64. By the protrusions and recesses, the protrusions are inserted into or removed from the holes 100c of the fixed rail 100, so that the fixed rail 100 and the intermediate rail 101 can be locked or unlocked. Thereby, the position of the seat 3 in the front-rear direction can be freely changed via the lever 64.

  FIG. 19 shows the relationship between the amount of impact (load weight “kinetic energy”) and time (distance) of the conventional seat apparatus of the present invention and the seat apparatus of the present invention, so-called shock buffering characteristics. In, the person H can be protected from the impact generated at the time of collision by post-feeding the kinetic energy (impact energy), so that damage to each part of the person H can be minimized. The “margin” in this figure is a comparison of the time when an impact to the person H occurs, and the present invention is the degree of impact that is advantageous over the prior art. It can be shown that it is possible to minimize the warping to and is effective for relaxation. Further, the kinetic energy in the conventional seat device and the seat device of the present invention is the same, and the feature of the present invention is that this kinetic energy is gradually transmitted and buffered over time. .

  Incidentally, in the fourth embodiment in which the conventional seat device shown in FIG. 20 is provided with the vertical movement mechanism D and the seat reclining device E of the present invention, the seat device for buffering at the time of impact described above is substituted. To do. The vertical movement mechanism D and the seat reclining device E are in accordance with the above-described embodiments.

1 Seat slide device
100 fixed rail
100a Yamabe
100b groove
100c hole
101 intermediate rail
101a
102 Moving rail
102a dome
102b Column
102c long hole
102-1 locations
103 Stopper
104 Guide means
2 floors
3 sheets
3a Corner
3-1.
300 Frame for seat
301 Front frame for seat
301a insertion part
301b Lower piece
301c
302 Main frame for seat
302a Tip
302b rear end
303 Rear frame for seat
304 epidermis
305 Guide piece
5 First shock absorber
500 casing
501 rooms
502 rooms
503 discharge hole
504 Silencer
505 Disc
505a Valve part
506 Venturi Club
507 spring
7 Seat back
7-1 Back frame
700 Mounting bracket
700a outside
700b hole
700c protrusion
701 Spiral spring
702 lever
703 Operation axis
703a Cam part
703-1 One end
703-2 The other end
704 Spring for operation shaft
705 connecting shaft
705a Reclining plate part
706 Spring
707 Lock plate
708 casing
708a Square tube
709 Seat frame mounting plate
709a protrusion
710 Linkage
711 Stopper
8 Third shock absorber
10 Second shock absorber
1000 casing
1000a casing piece
1000a1 tip
1000b casing piece
1000b1 tip
1001 rooms
1002 rooms
1003 Discharge hole
1004 Silencer
1005 Disc
1005a Valve part
1006 Venturi Club
1007 Spring
1008 Slide fitting
11 First stop
12 Second stop
13 First support plate
15 pulley
16 induction shooter
18 Seat belt
1800 buckle
20 axes
20a axis
21 axes
21a axis
22 Second link
2200 Sliding surface
2200a Teeth
2201 Arc recess
23 connecting shaft
25 cams
2500 protrusions
26 roller
2600 teeth
27 Linkage
28 First link
30 levers
3000 through holes
3001 Notch
3002 Inclined cam
3003 Concavity and convexity
3004 Lock mechanism
3005 cover
31 Support pin
31a
3100 protrusion
3101 Step
3102 Locking pin
32 Wave Washer
3200 Notch
33 Connecting gear
3300 Boss
3302 Unevenness
3303 Teeth
35 Clutch plate
3500 irregularities
36 Spring
40 headrest
41 Connecting means
41a Locking tool
42 Spring
43 pulley
43a Zhang pulley
44 Movable plate
45 Headrest stay
45a bent part
47 Headrest bracket
48 box
49 Headrest support
50 Forward tilting means
51 cap
52 Protrusions
53 Spring
55 Stopper
60 Support plate
61 Rock
62 Cam plate
64 levers
A moving mechanism
B Lifting mechanism
C Tilt mechanism
D Vertical movement mechanism
D1 Drive-side link mechanism
D2 Link mechanism on the driven side
D3 Lever mechanism
E Seat reclining mechanism
F Headrest device
H people
H1 back
H2 head
Q reference line
X Reference line
Y reference line
Z reference line

Claims (8)

When a vehicle seat slide device is fixed to a pair of fixed rails, a pair of intermediate rails slidably provided on the pair of fixed rails, and an impact provided on each of the intermediate rails of the pair. It consists of a pair of moving rails that move,
The fixed rail and the intermediate rail have a structure that can be fixed at an appropriate position by an adjusting mechanism, and a moving mechanism that freely moves the intermediate rail and the moving rail at the time of impact is provided.
Between the moving rail and the reclining plate portion constituting the vehicle seat reclining device, an elevating mechanism for sinking the rear side of the vehicle seat is provided.
In addition, a tilting mechanism is provided between the moving rail and the reclining plate portion of the vehicle seat back so that the seat back is tilted backward or forward. The seat back is moved backward, and the seat back is moved forward when the vehicle is in a rear collision.
Further, the simultaneous operation of the moving mechanism, the lifting mechanism, and the tilting mechanism, the seat member and / or the seat back side of the seat sinks under the seat back when the seat member descends after a collision. In the seat device for buffering at the time of impact of the vehicle,
A seat device configured to provide a vertical movement mechanism that moves the intermediate rail and the moving rail up and down to shock when a vehicle is impacted. In the seat device for buffering at the time of impact of the vehicle according to claim 1,
The vertical movement mechanism includes a pair of drive-side link mechanisms pivoted between the pair of fixed rails and the pair of intermediate rails, and between the pair of fixed rails and the pair of intermediate rails. Each of the paired driven links, and the paired drive side link mechanism is connected to the fixed rail of the pair, the first link of the pair pivoted at one end, and the first link of the pair. A cam provided on each of the intermediate rails of the pair, and a cam provided on each of the pair of cams, respectively, and the other end of the first link of the pair. The outer peripheral surface of each of the rollers includes a roller that rolls and a connecting shaft that connects between the pair of rollers and that crosses the seat (seat frame), and the link mechanism on the driven side is connected to the fixed rail. One end was pivotally attached to the intermediate rail. Sheet means achieves buffer during impact of the vehicle constructed in two links. In the seat device which aims at buffering at the time of impact of the vehicle according to claim 2,
The vertical movement of the second link includes a lever provided with a fulcrum on the fixed rail, a trochanter provided on the lever, a groove provided on the first link into which the trochanter is inserted, and the lever. A seat device configured to be provided with a stopper, and configured so that the second link rises by moving the groove of the trochanter by operation of the lever so as to cushion the vehicle at the time of impact. When a vehicle seat slide device is fixed to a pair of fixed rails, a pair of intermediate rails slidably provided on the pair of fixed rails, and an impact provided on each of the intermediate rails of the pair. It consists of a pair of moving rails that move,
The fixed rail and the intermediate rail have a structure that can be fixed at an appropriate position by an adjusting mechanism, and a moving mechanism that freely moves the intermediate rail and the moving rail at the time of impact is provided.
Between the moving rail and the reclining plate portion constituting the vehicle seat reclining device, an elevating mechanism for sinking the rear side of the vehicle seat is provided.
In addition, a tilting mechanism is provided between the moving rail and the reclining plate portion of the vehicle seat back so that the seat back is tilted backward or forward. The seat back is moved backward, and the seat back is moved forward when the vehicle is in a rear collision.
Further, the simultaneous operation of the moving mechanism, the lifting mechanism, and the tilting mechanism, the seat member and / or the seat back side of the seat sinks under the seat back when the seat member descends after a collision. In the seat device for buffering at the time of impact of the vehicle,
The seat reclining device includes a reclining plate portion provided on the moving rail, a lever provided on the outside of the reclining plate portion via a spiral spring, and a cam portion that is locked to a hole of the reclining plate portion. An operation shaft, an operation shaft spring, a mounting bracket, and a pair of locking plates provided with a spring in a split shape located in the cam portion, in order from one end to the other end of the operation shaft; and A casing having a rectangular tube portion, and a seat frame mounting substrate provided in the rectangular tube portion, and a configuration in which both ends of the spiral spring are provided in the reclining plate portion and the seat frame mounting substrate. Seat device that cushions the impact of a damaged vehicle. When a vehicle seat slide device is fixed to a pair of fixed rails, a pair of intermediate rails slidably provided on the pair of fixed rails, and an impact provided on each of the intermediate rails of the pair. It consists of a pair of moving rails that move,
The fixed rail and the intermediate rail have a structure that can be fixed at an appropriate position by an adjusting mechanism, and a moving mechanism that freely moves the intermediate rail and the moving rail at the time of impact is provided.
Between the moving rail and the reclining plate portion constituting the vehicle seat reclining device, an elevating mechanism for sinking the rear side of the vehicle seat is provided.
In addition, a tilting mechanism is provided between the moving rail and the reclining plate portion of the vehicle seat back so that the seat back is tilted backward or forward. The seat back is moved backward, and the seat back is moved forward when the vehicle is in a rear collision.
Further, the simultaneous operation of the moving mechanism, the lifting mechanism, and the tilting mechanism, the seat member and / or the seat back side of the seat sinks under the seat back when the seat member descends after a collision. In the seat device for buffering at the time of impact of the vehicle,
The seat reclining device includes a reclining plate portion provided on the moving rail, an operation shaft provided with a cam portion locked to a hole of the reclining plate portion, and from one end of the operation shaft to the other end in order. Provided are the operating shaft spring, the mounting bracket, a pair of lock plates with springs and a casing provided with a square tube portion, and a casing provided with a square tube portion. The vehicle seat shock mounting board and a spiral spring mounted on the square tube portion of the mounting bracket, and both ends of the spiral spring are provided on the reclining plate portion and the square tube portion. A seat device that cushions time. In the seat apparatus which aims at buffering at the time of an impact of the vehicles according to claim 4 and claim 5,
A seat device for buffering at the time of impact of a vehicle configured to fix the rectangular tube portion and the seat frame mounting substrate via a stopper. The vehicle seat slide device is composed of a pair of fixed rails fixed to the body and a pair of intermediate rails slidably provided on the pair of fixed rails.
The fixed rail and the intermediate rail can be fixed at an appropriate position by an adjustment mechanism, and a vertical movement mechanism for moving the fixed rail and the intermediate rail up and down is provided.
The vertical movement mechanism includes a pair of drive-side link mechanisms pivotally attached between the pair of fixed rails and the pair of intermediate rails, and between the pair of fixed rails and the pair of intermediate rails. Each of the paired driven links, and the paired drive side link mechanism is connected to the fixed rail of the pair, the first link of the pair pivoted at one end, and the first link of the pair. A cam provided on each of the intermediate rails of the pair, and a cam provided on each of the pair of cams, respectively, and the other end of the first link of the pair. The outer peripheral surface of each of the rollers includes a roller that rolls and a connecting shaft that connects between the pair of rollers and that crosses the seat (seat frame), and the link mechanism on the driven side is connected to the fixed rail. One end was pivotally attached to the intermediate rail. Vehicle seat apparatus constructed in the second link. A pair of fixed rails fixed to a vehicle body, and a pair of intermediate rails slidably provided on the pair of fixed rails, and a seat reclining device provided on the intermediate rail. And
The fixed rail and the intermediate rail can be fixed at an appropriate position by an adjustment mechanism, and a vertical movement mechanism for moving the fixed rail and the intermediate rail up and down is provided.
The seat reclining device includes a reclining plate portion provided on the intermediate rail, an operation shaft provided with a cam portion locked to a hole of the reclining plate portion, and from one end to the other end of the operation shaft in order. Provided are the operating shaft spring, the mounting bracket, a pair of lock plates with springs and a casing provided with a square tube portion, and a casing provided with a square tube portion. Seat frame mounting board and a spiral spring mounted on the square tube portion of the mounting bracket, and a vehicle seat having both ends of the spiral spring provided on the reclining plate portion and the square tube portion. Reclining device.

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