JP2008296686A - Rear seat device and vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide operability, high reliability and high durability by reducing force applied to an unlocking strap and a guide by a simplest mechanism in a structure which can unlock a locking mechanism preventing forward folding of a rear seat back from the side of a cabin or the side of a luggage compartment. <P>SOLUTION: This rear seat device includes a guide member 21 guiding the pulling out direction of the unlocking strap 106 unlocking the locked state of a fixing means 105 regulating the forward folding of the rear seat back. The guide member guides the unlocking strap 106 in two portions of a steel wire portion 21a and a steel wire portion 21b. Since the unlocking strap 106 is bent at two portions and guided, a bending angle does not make an acute angle, and an increase in frictional force is suppressed even though pulling out directions are different. Thereby, deterioration of operability is prevented, a load on the member is further reduced, and high reliability and high durability can be provided. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a configuration in which a rear seat back in a vehicle such as a passenger car can be tilted forward, and relates to a mechanism for unlocking a lock mechanism that regulates the forward tilt.

  There is a structure in which a rear seat back (rear seat back) whose rear is a luggage compartment (trunk) can be moved forward. By moving the rear seat back forward, luggage (for example, skis) that does not fit in the luggage compartment at the rear of the vehicle body can be accommodated in the luggage compartment. In order to ensure safety, the rear seat back structure is normally locked (locked by a lock mechanism so that the rear seat back cannot be tilted) in order to ensure safety. By performing the release operation, it can be moved forward.

  A configuration is known in which the unlocking operation of the lock mechanism can be performed from both the cargo compartment side and the passenger compartment side (see, for example, Patent Document 1). According to this configuration, it is possible to perform an unlocking operation from the cargo compartment side and perform an operation of moving the rear seat back forward, or perform an unlocking operation from the vehicle compartment side and perform an operation of moving the rear seat back forward.

JP-A-11-348626 (abstract)

  The structure that can perform the unlocking operation from both the cargo compartment side and the vehicle compartment side is highly convenient, but on the other hand, there are some users who think that this structure is not preferable from the viewpoint of security. In other words, the key may be deposited with an administrator in a parking lot or the like. In such a case, if the rear seat back can be moved forward from the passenger compartment side, access from the passenger compartment side to the luggage compartment can be prevented. Some users will be able to do it easily and feel anxious about it. In addition, when the vehicle is rough, a lock release operation is performed from the passenger compartment side, and the luggage on the passenger compartment side may be stolen. For this reason, it is possible to unlock the rear seat back forward mechanism from the passenger compartment side, but the configuration is such that it can be appropriately performed by the setting on the user side (that is, it can be unlocked only from the cargo compartment side). It has been demanded.

  In the configuration described in Patent Document 1, since the lock can be released from the passenger compartment side and the rear seat back can be moved forward, the above needs cannot be satisfied. As a technique that satisfies this need, a configuration that requires an operation using a personal identification number or a key when performing the above-described unlocking from the passenger compartment side can be considered. However, there is a problem that the configuration is complicated, the cost is increased, and the operability is lowered (the operation is troublesome).

  As a means for solving this problem, a release operation strap for performing an unlocking operation is used, and the first operation state in which the strap is disposed so that it can be operated only from the cargo compartment side, or the release operation strap is installed in the vehicle compartment. A configuration is conceivable in which one of the second states that can be arranged from the side can be selected. In this case, in the first state, the release operation strap is pulled horizontally backward, and in the second state, it is pulled upward. For this reason, in the two states, the bending angle of the release operation strap greatly differs in the guide portion. If the bending angles differ greatly in the two states, the bending angle becomes an acute angle in either case, and the frictional force acting between the bent portion and the guide portion increases. When the frictional force acting between the bent portion and the guide portion increases, a large force is required for pulling the release operation strap, and the operability is lowered. In addition, useless force applied to the release operation strap and the guide increases, the probability of damage and breakage increases, and the reliability and durability of the member decrease.

  Accordingly, the present invention provides a structure that can release the locking mechanism that prevents the rear seat back from being moved forward from the passenger compartment side or the cargo compartment side. It is an object of the present invention to provide a seat device that can reduce operability, high reliability, and high durability.

  The invention according to claim 1 is connected to the seat back, the forward tilting means that enables part or all of the seat back to be tilted forward, the fixing means that fixes the seat back to the vehicle body side, and the fixing means. , A member for releasing the fixing state of the fixing means, the first state where the grasping portion is located behind the seat back, or the portion where the grasping portion can be accessed from the front side of the seat back And at least two portions of the release operation strap in a path for pulling out the release operation strap from the fixing means. And a guide means that can be bent in the sheet. The grasping portion refers to a portion that is operated by touching with a hand, such as a portion that is grasped by a hand, a portion that is picked by a finger, or a portion that hooks a finger when the strap for the release operation is operated.

  According to the first aspect of the present invention, since the release operation strap pulled out from the fixing means is bent and pulled out in at least two stages, the angle of pulling out the release operation strap with respect to the seat back can be changed. The change and increase in the frictional resistance received by the guide means can be suppressed. Therefore, it is possible to suppress the inconvenience that the operability of the releasing operation of the fixing means by pulling the releasing operation strap greatly varies depending on the pulling angle of the releasing operation strap. That is, even when the release operation strap is pulled backward or pulled upward, it is possible to obtain an operation feeling in which the operability is unlikely to decrease with an increase in the frictional resistance in the guide portion. In addition, since an increase in frictional force generated between the release operation strap and the guide means can be suppressed, a load applied to the release operation strap and the guide means can be suppressed. For this reason, durability and reliability of the strap for releasing operation and the guide means can be increased.

  According to a second aspect of the present invention, in the first aspect of the present invention, the release operation strap is pulled out downward from the fixing means and then pulled out backward by the guide means, and the release operation strap of the guide means is The angle of the bent portion is a value exceeding about 90 °.

  According to the second aspect of the present invention, even when the release operation strap is pulled upward, the release operation strap is pulled out by being bent at at least two places. The angle of the portion exceeds approximately 90 °, and generation of a large frictional resistance at the bent portion can be suppressed. The front is defined as the front direction of the seat device, and the rear is defined as the rear (back) direction of the seat device. The angle of the bent portion is defined as an angle formed on the guide member side of the bent portion.

  According to a third aspect of the present invention, in the second aspect of the present invention, the seat back is inclined rearward, and the guide means bends the release operation strap rearward below the fixing means. A guide portion and a second guide portion for regulating the release operation strap from above at the rear of the first guide portion, the release operation strap extending obliquely downward and rearward from the fixing means, It reaches the first guide part.

  According to the third aspect of the present invention, when the release operation strap is pulled from above, the release operation strap is pulled in a direction along the inclined back of the seat back. For this reason, even when the release operation strap is operated from the passenger compartment side, the bending angle of the release operation strap in the second guide portion can be an obtuse angle exceeding 90 °. In addition, since the extending direction of the release operation strap extending from the fixing means toward the first guide portion is inclined backward from the vertical, the release operation in the first guide portion is performed regardless of the operation state. The bending angle of the strap can be made obtuse. Thus, in the operation of the release operation strap from the luggage compartment side and the vehicle compartment side, the angle at the bent portion of the release operation strap in the guide means can be set to a value exceeding approximately 90 °.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the seat back is a rear seat back whose back serves as a luggage compartment. The fixing means cannot be released from the fixed state. According to this aspect, either the aspect (first state) in which the rear seat can not be forwarded from the passenger compartment side or the second aspect (second state) in which the rear seat can be forwardly forwarded from the passenger compartment side is provided. In the configuration that can be appropriately selected by the user, it is possible to prevent a significant difference in the operation feeling of the release operation strap regardless of which state is selected. Further, regardless of which state is selected, it is possible to prevent an overload from being applied to the release operation strap and the guide member.

  In addition, by selecting a mode in which the rear seat back cannot be moved forward from the passenger compartment side, the rear seat back is moved forward from the passenger compartment side by a malicious person, causing inconvenience such as theft of valuables in the luggage compartment. Can be prevented. In addition, since the user can select an aspect in which the rear seat back can be moved forward from the passenger compartment side, convenience can be pursued according to the user's request.

  A fifth aspect of the present invention is a vehicle comprising the seat device according to any one of the first to fourth aspects. According to the invention described in claim 5, a vehicle including the seat device using the invention described in any one of claims 1 to 4 is grasped as an invention. Examples of the vehicle include a passenger car and a baggage transportation vehicle.

  According to the present invention, in the structure in which the lock mechanism that prevents the rear seat back from being moved forward can be released from the vehicle compartment side or the cargo compartment side, the force applied to the release operation strap and the guide by the simplest mechanism possible. It is possible to provide a seat device that can reduce operability and obtain operability, high reliability, and high durability.

1. First embodiment (configuration)
Hereinafter, an example when the present invention is applied to a rear seat device of a passenger car will be described. FIG. 1 is a conceptual diagram showing an example of a rear seat device using the present invention. FIG. 1A shows a conceptual view of the rear seat device 100 as viewed from the side. The rear seat device 100 includes a rear seat cushion 101, a rear seat back 102, a rear seat headrest 103, a forward tilting means 104, and a locking means 105. In FIG. 1, the description of the seat belt is omitted.

  The rear seat cushion 101 is a seat cushion, and is fixed to a vehicle body (not shown). The rear seat back 102 corresponds to a backrest. The rear seat headrest 103 is fixed to the upper portion of the rear seat back 102 and supports the human head sitting from behind. The forward tilting means 104 includes a rotating shaft, and the rear seat back 102 can be tilted forward with respect to the rear seat cushion 101 using the rotating shaft as an axis. That is, one end of the rotating shaft is fixed to the vehicle body side (or rear seat back 102) (not shown), and the other end of the rotating shaft 104 is fixed to the rear seat back 102 (or vehicle body side (not shown)) so as to be rotatable. .

  The locking means 105 is disposed in the rear seat back 102. The locking means 105 is a means for restricting forward tilting from the state where the rear seat back 102 is raised (the state shown in FIG. 1A) (preventing forward tilting by a normal operation method). The locked state of the locking unit 105 is released by pulling the release operation strap 106. That is, by pulling the release operation strap 106 by hand, the lock state in which the rear seat back 102 is raised by the lock means 105 is released, and the rear seat back 102 can be manually tilted forward. If the release operation strap 106 is not pulled by hand, the state in which the rear seat back 102 is raised by the locking means 105 is maintained, and the rear seat back 102 is manually tilted forward with a normal force (method). It is not possible. Details of the locking means 105 will be described later.

  The release operation strap 106 is formed by weaving synthetic fibers into a band shape (strip shape), has flexibility, and has an end portion folded back into a ring shape 106a. That is, the end portion of the release operation strap 106 is folded back and overlapped with the main body of the release operation strap 106 at a portion of several centimeters from the end portion, and is fixed by the pin 106b. According to this structure, the ring-shaped portion 106a and the surplus portion 106c extending in the folding direction are formed.

  The portion of the ring shape 106a functions as a grasping means, and the operability of the release operation can be enhanced by grasping it with the hand during the release operation. Further, it is possible to fix the release operation strap 106 to the back surface of the rear seat back 102 by using the folded portion. When the end portion is folded back to form the ring shape 106a, the substantial end portion of the release operation strap becomes a portion of the ring shape 106a.

  Further, the hook-and-loop fasteners 109 are arranged on both surfaces of the release operation strap 106 on the locking means 105 side of the portion fixed by the pin 106b. With this hook-and-loop fastener, the release operation strap 106 can be fixed to an arbitrary location (or a predetermined location) on the rear surface of the rear seat back 102.

  The release operation strap 106 is not limited to the shape and material described above, and may be a string, a material having a certain degree of rigidity, a material using a multi-joint structure, or the like. Moreover, what provided the grip part and the finger-hook part with another member as a grasping means can be utilized.

  An opening 107 is provided on the rear surface of the rear seat back 102, and one end of the release operation strap 106 is connected to the locking means 105 through the opening 107. Guide means capable of bending the release operation strap 106 at two portions is disposed at the opening 107 portion. FIG. 2 is a perspective conceptual view showing an example of the locking means and the guide means. FIG. 2 shows a state in which the portion of the locking means 105 of FIG. 1 is exposed as seen from the upper right front of the rear seat device 100. FIG. 2 shows a state in which the exterior member and the cushion material of the rear seat back are removed, and the lock means 105 is attached to the skeleton structure (rear seat back frame 102a) of the rear seat back. FIG. 3 is a conceptual diagram showing a state in which the lock means and the guide means are viewed from the side. 2 and 3 show a state in which the rear seat back is raised.

  FIG. 2 shows a rear seat back frame 102a constituting the skeleton structure of the rear seat back 102 of FIG. Lock means 105 is fixed to the rear seat back frame 102a by bolts 20 via a mounting base (bracket) 102b. The rear seat back frame 102a is fixed with guide means 21 made of rigid steel wire.

  A release operation strap 106 is connected to a lower portion of the lock means 105 via a bracket (coupling metal) 305. The release operation strap 106 and the bracket 305 are connected by a caulking metal fitting 306. The release operation strap 106 extending downward from the lower portion of the locking means 105 is changed in two extending directions (bent at two locations) by the guide means 21, and the rear seat back frame 102a (the rear seat back in FIG. 102). That is, the release operation strap 106 connected to the lower portion of the locking means 105 and extending downward therefrom is left-horizontal in FIG. 3 by the steel wire portion 21a which is the first guide portion constituting the guide means 21. The extending direction can be changed. Further, the release operation strap 106 extending in the left horizontal direction is in contact with or close to the lower portion of the steel wire portion 21b which is the second guide portion constituting the guide means 21, and the upper surface thereof is viewed from above by the steel wire portion 21b. Be regulated. In the example shown in the drawing, the upper surface of the release operation strap 106 extending from the right direction is in contact with the steel wire portion 21b, and is bent in a diagonally upward left direction.

  As shown in FIGS. 2 and 3, when viewed in the height direction, the position of the steel wire portion 21a that is the first guide portion and the position of the steel wire portion 21b that is the second guide portion are the same height. Is located. Further, the extending direction of the release operation strap 106 extending downward from the locking means 105 is not in the vertically downward direction, but in the rearward and slightly obliquely downward direction inclined by the angle θ from the vertical direction. That is, the release action strap 106 extends from the lock means 105 toward the steel wire portion 21a in a direction inclined at an angle θ from the vertical to the rear. The angle θ is 3 °, for example. The value of the angle θ is selected from the range of 0 ° <θ <10 °, for example.

  In this example, an example of a configuration in which the release operation strap is bent at two locations by the guide means (bent in two steps) is shown, but the bending angle at one location is bent at three locations (three steps) or more. Can be made more obtuse (closer to 180 °). By doing so, the frictional resistance at the contact portion between the guide means and the operation release strap can be lowered, and the effect of correcting the difference in operability due to the difference in the pulling angle of the release operation strap and the load applied to the member are reduced. The effect can be made higher.

  Returning to FIG. 1, a release operation strap fixing means 108 is disposed on the rear surface of the rear seat back 102. The release operation strap fixing means 108 has a structure in which both ends of a belt-like member (for example, the same member as the release operation strap 106) are fixed to the rear surface of the rear seat back 102 by sewing or an appropriate attachment member. A function of fixing the release operation strap 106 to the rear surface of the rear seat back 102 by passing the release operation strap 106 through a portion that is not provided. As the release operation strap fixing means 108, a hook-and-loop fastener, a snap button, and other engagement means capable of fixing the release operation strap can be used.

  FIG. 1B shows a state in which the release operation strap 106 is hung downward without passing through the release operation strap fixing means 108. At this time, the strap for releasing operation 106 can be fixed to the back surface of the rear seat back 102 by using a hook-and-loop fastener 109 instead of simply hanging. Further, this fixed position can be arbitrarily selected. As an example, FIG. 1C shows a state in which the release operation strap 106 is bent leftward when viewed from the back side, and is further fixed to the back surface of the rear seat back 102 using a hook-and-loop fastener 109. As described above, since the release operation strap 106 can be fixed at an arbitrary position on the back surface of the rear seat back 102, the convenience of unlocking from the luggage compartment side is improved.

  In FIG. 1D, the release operation strap 106 is passed through the release operation strap fixing means 108 from the lower side to the upper side, and the tip (in this case, the ring-shaped portion 106 a) is connected to the upper edge of the rear seat back 102. The state which protruded upwards from the part is shown. In this state, the release operation strap 106 is engaged with the surplus portion 106c being hung on the outside of the release operation strap fixing means 108. As a result, the release operation strap 106 is fixed to the release strap fixing means 108 so as not to slide downward.

  The release operation strap fixing means 108 also serves to prevent the release operation strap 106 from overlapping the lock means 105 as shown in FIG. By preventing the release operation strap 106 from overlapping the locking means 105, the rear seat back 102 is raised, and the release operation strap 106 is caught in the lock means 105 when the state is locked by the lock means 105. Can be avoided.

(Locking means)
Hereinafter, the mechanism of the locking means 105 shown in FIGS. 1 to 3 will be described. FIG. 4 is an operation conceptual diagram showing an example of the lock unit 105. FIG. 4 is an enlarged view of the portion of the locking means 105 in FIG. 1 (A), and an outline of the locking means 105 is shown. The locking means 105 is fixedly disposed in the rear seat back 102 of FIG. 1, and has a structure in which the rotation engaging members 302 and 303 are fixed to the base casing 301 in a rotatable state. The rotation engagement member 302 can rotate about the shaft 302a, and the rotation engagement member 303 can rotate about the shaft 303a.

  As shown in FIG. 4D, the rotation engagement member 302 is pulled and urged by a spring 304 in the clockwise direction. Further, a bracket (connecting metal fitting) 305 is attached to the end of the rotation engaging member 303 by a connecting pin 303b so as to be rotatable about the shaft. One end of the release operation strap 106 is fixed to the other end of the bracket 305 by a caulking metal fitting 306. The strap 106 for release operation is changed in the direction of the left in the drawing in the steel wire portion 21a having a circular cross-section, and the upper surface is in contact with (or close to) the steel wire portion 21b having a similar cross-sectional structure. , And extends from the opening 107 (see also FIG. 1) to the interior space of the luggage compartment 202 (see also FIG. 3).

  4 is a member that covers the back surface of the rear seat back 102 shown in FIG. Reference numeral 307 denotes a vehicle body side striker fixed to a vehicle body frame (frame structure of the vehicle body) of a passenger car 200 shown in FIG. 5 described later. The vehicle body side striker 307 has a shape obtained by processing a rod-shaped member into a ring shape.

  Hereinafter, an example of the operation of the locking unit 105 will be described with reference to FIG. When the rear seat back 102 (see FIG. 1) is moved forward from the forward-tilted state, the lock device 105 relatively approaches the vehicle body side striker 307. At this time, the rotation engagement member 302 is biased in the clockwise direction in the figure, and is in a state shown in FIG.

  When the rear seat back 102 (see FIG. 1) is at a stage, the vehicle body side striker 307 comes into contact with the rotation engaging member 302 as shown in FIG. When the rear seat back 102 is further raised from this state, the rotation engagement member 302 rotates counterclockwise against the urging force (FIG. 4B). At the stage where the rotation engagement member 302 and the rotation engagement member 303 are engaged with each other at a portion indicated by reference numeral 308, the rotation engagement member 302 can no longer rotate counterclockwise, and the rear seat back 102 is no longer rotated. It cannot be caused (FIG. 4C).

  The state shown in FIG. 4C is reached, and the raising work of the rear seat back 102 that has been brought forward is finished. In the state of FIG. 4C, the vehicle body side striker 307 is fitted into the recess 302 b of the rotation engagement member 302. In this state, in the portion indicated by reference numeral 308, the rotation engagement members 302 and 303 are engaged with each other, so that the rotation engagement member 302 cannot rotate in the clockwise direction in the drawing. Therefore, from the state of FIG. 4C, the rear seat back 102 cannot be moved forward (that is, the locking means 105 can be moved to the right in the figure). Thus, the rear seat back 102 is fixed (locked) in a state where the rear seat back 102 (see FIG. 1) is raised (the state shown in FIG. 1A). This is the lock function of the lock means 105.

  To release the locked state of the locking means 105 shown in FIG. 4C, the release operation strap 106 may be pulled from the back side of the rear seat back 102. In this case, the rotation engagement member 303 rotates counterclockwise in the figure, and the state where the rotation engagement members 302 and 303 are engaged with each other (the state shown in FIG. 4C) is released. Then, the rotation engaging member 302 is rotated in the clockwise direction in the drawing by the biasing force of the spring 304. When the rear seat back 102 (see FIG. 1) is tilted forward, the operation is performed in the order of FIG. 4 (B) → (A), and the vehicle-side striker 307 restrained by the locking means 105 is released from the locking means 105. However, the locking means 105 can be relatively moved in the right direction in the figure. That is, the rear seat back 102 can be moved forward. By pulling the release operation strap 106 in this way, the fixed state of the rear seat back 102 by the locking means 105 can be released, and the rear seat back 102 can be tilted forward.

(Passenger car with rear seat device)
FIG. 5 is a conceptual diagram showing an example of a passenger car including the rear seat device 100 shown in FIG. FIG. 5 shows a passenger car 200. The passenger car 200 includes a passenger compartment (passenger compartment) 201 and a luggage compartment (rear trunk) 202. In a state where the rear seat back 102 is raised, the rear surface of the rear seat back 102 comes into contact with the rear boat 203, and the passenger compartment 201 and the cargo compartment 202 are separated.

(Placement of release strap and operation example)
The release operation strap 106 is positioned in a first state where the tip end portion (ring shape 106a portion) is positioned on the luggage compartment 202 (see FIG. 3) side, or in a portion accessible from the front side of the rear seat back 102. One of the two states can be selected. Hereinafter, this point will be described.

  An example of the first state is shown in FIGS. 1B and 1C. In this case, the distal end portion of the release operation strap 106 (in this case, the distal end portion of the ring shape 106 a) is located on the back side of the rear seat back 102. In this state, when the rear seat back 102 is raised and the above-described rear seat back 102 is fixed by the locking means 105, the leading end portion of the release operation strap 106 is located in the luggage compartment 202 in FIG. In this state, the release operation strap 106 cannot be operated from the passenger compartment 201 side. That is, when the rear seat back 102 is raised, its rear surface comes into contact with the rear board 203 (see FIG. 5), and access to the luggage compartment 202 cannot be performed from the passenger compartment 201 side. The operation of the release operation strap 106 in the state (B) or (C) cannot be performed. In this case, the rear seat back 102 can be moved forward by operating the release operation strap 106 from the cargo compartment 202 side.

  An example of the second state is shown in FIG. In this case, the distal end portion (the portion of the ring shape 106 a) of the release operation strap 106 is located at a portion protruding upward from the rear side of the rear seat back 102. In this state, when the rear seat back 102 is raised and the rear seat back 102 is fixed by the locking means 105, the release operation strap 106 is placed between the rear surface of the rear seat back 102 and the rear board 203 (see FIG. 5). Sandwiched. And the front-end | tip part of the strap 106 for cancellation | release operation will be in the state located in the compartment 201 in FIG. In this state, the release operation strap 106 can be operated from the passenger compartment 201 side.

(Advantages of the embodiment)
In the operation of the release strap 106 from the vehicle compartment 201 side in FIG. 5, the release operation strap 106 is pulled upward from the opening 107 (see FIG. 1B). At this time, the action of the guide 21 shown in FIG. 2 and FIG. 4 divides the bent state of the release operation strap 106 into two parts so that an acute angle (that is, less than 90 degrees) is not generated. For this reason, when the release operation strap 106 is pulled from the passenger compartment 201 (see FIG. 5) side, an excessively large force is not required. In other words, on the side of the luggage compartment 202 in FIG. 5, it is possible to prevent a significant difference in pulling feeling between when the release operation strap 106 is pulled leftward and when it is pulled upward. Therefore, the operability of the release operation strap 106 can be enhanced.

  Hereinafter, this point will be described in more detail. FIG. 6 shows a case (A) in which the release operation strap 106 is pulled from the cargo compartment 202 side in FIG. 5 and a case (B) in which it is pulled from the passenger compartment 201 side. First, FIG. 6A shows a forward operation by pulling the release operation strap 106 when the state of FIG. 1B or 1C (that is, the first state in claim 1) is selected. The case to do is shown. FIG. 6A shows a state in which the release operation strap 106 is pulled from the cargo compartment 202 side (drawn slightly upward from the horizontal).

  Next, FIG. 6B shows a case where a forward operation is performed by pulling the release operation strap 106 when the state of FIG. 1D (that is, the second state in claim 1) is selected. Has been. FIG. 6B shows a state in which the release operation strap 106 is pulled from the passenger compartment 201 (see FIG. 5) side. In this case, as shown in FIG. 1 or FIG. 5, since the rear seat back 102 is inclined rearward, the release operation strap 106 is pulled diagonally upward (left diagonally upward in the figure).

  The release operation strap 106 is guided by bending stepwise at two locations, the steel wire portion 21a and the steel wire portion 21b. Therefore, even when the operation shown in FIG. 6A is performed or the operation shown in FIG. 6B is performed, the bent portion of the release operation strap may have an acute angle. In addition, the frictional force that the release operation strap receives from the guide member can be suppressed. The bending angle is defined as an angle formed on the side where the guide member is sandwiched in the portion where the release operation strap is bent by the guide member.

  That is, in the mode shown in FIGS. 6A and 6B, since 0 ° <θ <10 ° (for example, θ = 3 °) is set, the bending of the release operation strap 106 in the steel wire portion 21a is not performed. The angle is over 90 °. In the mode shown in FIG. 6A, the release operation strap 106 is always pulled in the left direction of the drawing, and therefore the bending angle of the release operation strap 106 in the steel wire portion 21b exceeds 90 °. . 6B, the rear seat back (see reference numeral 102 in FIG. 1 or 5) is inclined rearward, and the steel wire portions 21a and 21b are positioned at the same height. Therefore, even when the release operation strap 106 is operated from the passenger compartment 201 side, the bending angle of the release operation strap 106 at the steel wire portion 21b always exceeds 90 °. In other words, whether the pulling strap 106 for the release operation is pulled from the cargo compartment 202 side (A) or when pulling from the passenger compartment 201 side (B), the strap for the releasing operation 106 at the steel wire portions 21a and 21b is used. The bending angle of becomes obtuse.

  When the bending angle of the release operation strap 106 in the steel wire portions 21a and 21b is less than 90 °, the frictional force applied to the release operation strap 106 at that portion greatly increases. In particular, when the release operation strap 106 is operated from the passenger compartment 201 side, the bending angle at the guided portion is smaller than that when operated from the cargo compartment 202 side, so that the bending angle is less than 90 °. In this case, it becomes necessary to pull the release operation strap 106 with a larger force. This is a factor that causes a large difference in operational feeling between when the release operation strap 106 is operated from the cargo compartment 202 side and when operated from the passenger compartment 201 side.

  In the above aspect, even in the case of the operation from the cargo compartment 202 side shown in FIG. 6A or the operation from the compartment 201 side shown in FIG. Since the bending angle of the operating strap 106 exceeds 90 °, a large change in the frictional force applied to the guide portion can be suppressed. For this reason, in two types of operation modes, it is possible to prevent a significant difference in operation feeling. In addition, it is possible to suppress a load applied to the release operation strap 106 and the steel wire portion 21 when the operation of FIG. 6B is performed. For this reason, durability and reliability of the apparatus can be improved.

  If the release operation strap 106 is guided only by the steel wire portion 21a or the steel wire portion 21b (that is, only one wire portion), the operation of the release operation strap corresponding to FIG. 6B is performed. When performed, the angle of the bent portion is an acute angle greatly less than 90 °. For this reason, the frictional resistance received by the release operation strap 106 at this bent portion is increased, resulting in a large difference in operation feeling between the operation of FIG. 6A and the operation of FIG. 6B. Further, the load applied to the release operation strap 106 and the steel wire portion during the operation of FIG.

2. Second Embodiment The present invention can also be used in a structure in which a part of the rear seatback can be moved forward. FIG. 7 is a perspective view showing an outline of another example of the rear seat device. FIG. 7 shows a rear seat device 400. The rear seat device 400 includes a rear seat cushion 401 and a rear seat back 402. A part 402a of the rear seat back 402 can be tilted forward, and an opening 402b is formed by tilting that part forward. The opening 402b is configured to be connected to a luggage room (not shown) behind. According to this configuration, when a part 402a of the rear seat back 402 is moved forward, a part of a long luggage that does not fit within the dimensions of the unillustrated cargo compartment can be partly protruded and loaded in the cargo compartment. it can.

  The embodiment illustrated in FIG. 7 includes a lock means (not shown) that restricts the part 402 a of the rear seat back 402 from being tilted forward. The mechanism illustrated in FIG. 4 can be used as the mechanism of the locking means. That is, the locking means shown in FIG. 4 is arranged in the rear seat back 402, and a striker (not shown) is arranged in a part 402a of the rear seat back 402. Then, the operation shown in FIG. 4 is performed, so that the portion of reference numeral 402a with respect to the rear seat back 402 is fixed and released.

  In this configuration, a release operation strap (not shown) for performing an operation for releasing the lock state of the lock means is configured to be pulled out from the rear side of the rear seat back 402, as in FIG. Then, the tip of the release operation strap is positioned on the rear side of the rear seat back 402, or the release operation strap is sandwiched between the rear seat back 402 and the portion 402a, and the tip protrudes toward the passenger compartment. Can be selected. Also in this aspect, by positioning the tip of the release operation strap on the cargo compartment side (cargo compartment), it is possible to prevent the part of reference numeral 402a from being forwardly moved from the passenger compartment side.

  Also in this aspect, for the same reason as described with reference to FIG. 6, the frictional force acting on the release operation strap when the release operation strap is operated from the cargo compartment side and when operated from the passenger compartment side. The difference is corrected. For this reason, deterioration of operativity and damage to a member can be suppressed.

3. Other Embodiments The position where the release operation strap is fixed is not limited to the rear seat back. For example, when the first state in claim 1 is taken, the release operation strap 106 shown in FIG. 1 may be fixed to an appropriate inner surface (for example, a side wall surface) in the luggage compartment 202. For example, when the second state in claim 1 is taken, the root portion of the ring shape 106a of the release operation strap 106 shown in FIG. 1 may be fixed to the rear board 203 of FIG. In this case, the release operation strap fixing means is arranged on the rear board 203 side.

  In the above embodiment, the example in which the present invention is applied to the rear seat device has been described, but the present invention can also be applied to a seat device other than the rear seat device. For example, the present invention can be applied to a second row seat device having a seat structure in which a second and / or third row seat back can be moved forward in a vehicle including a third row seat device. In this case, the arrangement state of the release operation strap (first state) assuming the case where the seat device is moved forward from the rear, and the arrangement of the release operation strap assuming the case where the seat device is moved forward from the front The present invention is applied to a configuration in which a state (second state) can be selected. Further, the present invention can also be applied to a seat device that can move the passenger seat beside the driver's seat.

  The embodiment of the guide means is not limited to the shape shown in FIG. FIG. 8 is a conceptual diagram showing an example of another design of the guide means. FIG. 8 shows the guide means 801. The guide means 801 is made of the same steel wire as the guide means 21 in FIG. The guide means 801 contacts the release operation strap 106 at the steel wire portions 801a and 801b, and guides the release operation strap 106. The positional relationship between the steel wire portions 801a and 801b is the same as in the case of the steel wire portions 21a and 21b, and the guide function of the guide means 801 is also the same as that of the guide means 21 in FIG. Moreover, the part of the same code | symbol as FIG. 2 shown in FIG. 8 has the same function as what is shown in FIG.

  In order to suppress the frictional force at the contact portion between the guide portion and the release operation strap, the surface of the guide portion and / or the release operation strap may be made of a material having a low coefficient of friction. For example, a fluororesin coat may be applied to the surface of the guide portion and / or the release operation strap to suppress the frictional force acting between them. Bearings and pulleys are arranged on the guide portion (for example, the steel wire portion 21a and the steel wire portion 21b), and the frictional force acting on the release operation strap is converted into rolling friction to reduce the frictional force. You can also.

  The present invention can also be applied to a structure in which the fixing means is fixed to the vehicle body side and the striker is arranged on the seat back side. Also in this case, a structure suitable for the operation of the release operation strap from two directions (or a wide angle range) can be obtained.

  The present invention can be used in a configuration in which at least a part of a seat of a vehicle such as a passenger car can be moved forward. In particular, the present invention can be used in a configuration in which at least a part of a rear seat back of a vehicle such as a passenger car can be moved forward.

It is the side view (A), back view (B), back view (C), and back view (D) which show the outline | summary of the rear seat apparatus using invention. It is a perspective view which shows an example of the strap fixing means for cancellation | release operation | movement, and a guide member. It is a side view which shows an example of the strap fixing means for cancellation | release operation | movement, and a guide member. It is a conceptual diagram which shows the outline | summary of operation | movement of a locking means. It is a conceptual diagram which shows an example of the vehicle provided with the rear seat apparatus using invention. It is a conceptual diagram which shows the operation state of the strap for cancellation | release operation | movement. It is a perspective view which shows the outline | summary of the other rear seat apparatus using invention. It is a perspective view which shows another example of a guide member.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 21 ... Guide means, 21a ... Steel wire part, 21b ... Steel wire part, 100 ... Rear seat apparatus, 101 ... Rear seat cushion, 102 ... Rear seat back, 103 ... Rear seat headrest, 104 ... Forward-lowering means, 105 ... Locking means, 106 ... Release operation strap, 106a ... ring shape, 106c ... surplus portion, 107 ... opening, 108 ... release operation strap fixing means, 200 ... passenger car, 201 ... passenger compartment, 202 ... luggage compartment, 203 ... rear board.

Claims (5)

Seat back,
A front-end means for allowing a part or all of the seat back to be advanced;
Fixing means for fixing the seat back to the vehicle body side;
A member connected to the fixing means for releasing the fixing state of the fixing means, the first state in which the grasping portion is located behind the seat back, or the grasping portion of the seat back. A release operation strap capable of selecting any one of the second states located in a portion accessible from the front side;
A sheet device comprising: guide means capable of bending the release operation strap in at least two portions in a path for pulling out the release operation strap from the fixing means. The release operation strap is pulled out downward from the fixing means, and then pulled out backward by the guide means,
The seat device according to claim 1, wherein an angle of a bent portion of the release operation strap in the guide means is set to a value exceeding about 90 °. The seat back is inclined rearward,
The guide means includes a first guide portion that bends the release operation strap rearward below the fixing means;
Behind the first guide part, a second guide part for regulating the release operation strap from above, and
The seat device according to claim 2, wherein the release operation strap extends obliquely downward and rearward from the fixing means and reaches the first guide portion. The seat back is a rear seat back whose back is a luggage compartment,
The seat device according to any one of claims 1 to 3, wherein the release from the passenger compartment side cannot be performed in the first state.   A vehicle comprising the seat device according to any one of claims 1 to 4.

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