JP5857919B2 - Lock mechanism - Google Patents

Description

  The present invention relates to a locking mechanism. Specifically, the present invention relates to a lock mechanism that can be locked at a storage position in which a vehicle seat is moved from a use position on a floor.

  2. Description of the Related Art Conventionally, there is known a vehicle seat that includes a mechanism that allows a vehicle seat to be folded and flipped to the side to be stored (Patent Document 1). After the vehicle seat is flipped up to the side, the vehicle seat is inserted by connecting a buckle of a fixing band extending from the vehicle seat to a receiving device provided on the side wall of the vehicle, thereby connecting the vehicle seat. It is locked in the raised storage position.

JP 2008-290649 A

  However, in the prior art described in Patent Document 1, the related parts for locking the vehicle seat in the storage position are required on both the vehicle seat side and the side wall side of the vehicle. It has a lot of configuration. The present invention was devised to solve the above-described problems, and the problem to be solved by the present invention is to simplify the component configuration for locking the vehicle seat in the storage position.

In order to solve the above problems, the locking mechanism of the present invention takes the following means.
1st invention is the lock mechanism which can be locked to the storage position which moved the vehicle seat from the use position on a floor. The locking mechanism is provided at a position where the vehicle seat is stored and moved, and has a fixing member that can fix the vehicle seat to the storage position by engagement with the vehicle seat. The vehicle seat is configured to be stored in the storage position in a folded state in which the seat back is folded on the upper surface portion of the seat cushion. The fixing member is configured to be pushed into the gap between the seat back and the seat cushion and engage with the vehicle seat folded in the storage position.

  According to the first aspect of the present invention, after the vehicle seat is stored and moved, the fixing member provided at the destination position is folded between the seat back and the seat cushion of the vehicle seat. By pushing into the gap, the vehicle seat is fixed in the storage position. Thus, since it is not necessary to provide any locking structure on the vehicle seat, the component configuration for locking the vehicle seat to the storage position can be simplified.

  The second invention is the following configuration in the first invention described above. The vehicle seat is configured to be folded and stored from the floor to the storage position facing the side wall of the vehicle in the folded state. The fixing member is provided on the side wall of the vehicle, and protrudes from the side wall of the vehicle that can be pushed into the gap of the vehicle seat that is flipped up to the storage position by a switching structure provided between the fixing member and the side wall of the vehicle. It is possible to switch between a usable state and a retracted state in which the protruding portion from the side wall of the vehicle is reduced.

  According to the second aspect of the invention, in the type in which the vehicle seat is flipped up to the side of the vehicle and stored, the fixing member can be kept compactly stored on the side wall of the vehicle during normal times.

  According to a third invention, in the first or second invention described above, a slide structure is provided that guides the fixing member so that the fixing member can be pushed into the gap of the vehicle seat by sliding.

  According to the third aspect of the present invention, the operation of pushing the fixing member into the gap of the vehicle seat or pulling it out of the gap can be easily performed by the slide structure.

  According to a fourth invention, in any one of the first to third inventions described above, the fixing member is pushed into a portion to which the elastic force of the pad provided on at least one of the seat back and the seat cushion is applied. To be engaged.

  According to the fourth aspect of the present invention, the elastic action of the pad acts between the fixing member and the vehicle seat, so that it is difficult to cause backlash in holding the vehicle seat at the storage position.

It is a perspective view which shows the state by which the vehicle seat of Example 1 was fixed to the accommodation position. It is a perspective view which shows the state which has a vehicle seat in a normal use position. It is a perspective view which shows the state in which the vehicle seat was flipped up to the storage position. It is a front view of a lock mechanism. FIG. 5 is a cross-sectional view taken along the line VV in FIG. FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. 4 showing the main structure of the lock mechanism. It is a side view which shows the structure of the locking mechanism of Example 2. FIG. 6 is a side view illustrating a configuration of a lock mechanism according to a third embodiment. It is a perspective view which shows the movable structure of a fixing member.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing.

  First, the configuration of the lock mechanism 10 according to the first embodiment will be described with reference to FIGS. As shown in FIG. 1, the lock mechanism 10 of the present embodiment folds the vehicle seat 1 arranged as the third row seat of the automobile, flips it sideways, and stores the vehicle seat 1. This is a mechanism for holding in the raised storage position. Specifically, the lock mechanism 10 is disposed on the side wall W of the vehicle that is the destination of the vehicle seat 1 and has raised the vehicle seat 1 to the storage position facing the side wall W. Thereafter, the vehicle seat 1 is held in the retracted storage position by moving a fixing member 13 (described later) to engage with the vehicle seat 1. Hereinafter, each structure of the vehicle seat 1 and the lock mechanism 10 described above will be described in detail.

  As shown in FIG. 2, the vehicle seat 1 includes a seat back 2 that serves as a backrest for a seated occupant, a seat cushion 3 that serves as a seating portion, and a headrest 4 that serves as a headrest. The seat back 2 is connected to the rear end portions of the left and right sides of the seat cushion 3 via the reclining device 5 that functions as a rotation shaft device capable of stopping rotation. It is said that. Thereby, the seat back 2 is in a state in which the backrest angle with respect to the seat cushion 3 can be freely adjusted in the front-rear direction with the respective reclining devices 5 as the center.

  Each of the reclining devices 5 described above is normally held in a locked state in which the backrest angle of the seat back 2 is fixed. Each reclining device 5 includes a release strap 3B provided at a rear portion of the seat cushion 3 closer to the inside of the vehicle from a position where a person who performs the storing operation of the vehicle seat 1 stands rearward of the hatchback door of the vehicle. By performing an operation of grasping the hand with the hand and pulling it backward, the locked state is released all at once, and the fixed state of the backrest angle of the seat back 2 is released.

  Here, a torsion spring (not shown) is applied between the seat back 2 and the seat cushion 3 to apply a biasing force in the direction of rotating the seat back 2 to the front side at all times. As a result, the seat back 2 is operated by pulling the release strap 3B backward from the position where the user stands on the rear side of the vehicle in a state where no person is sitting on the vehicle seat 1. By releasing the locked state, the urging force is applied to the front side to the position where it is folded into the upper surface of the seat cushion 3. In addition, since the basic structure of each reclining apparatus 5 becomes the same well-known structure as what was disclosed by literature, such as Unexamined-Japanese-Patent No. 2011-116303, concrete description about these is abbreviate | omitted. .

  The seat cushion 3 is hinged to the upper portion of the tire house (not shown) on the floor F via the hinge mechanism 6 so that the side portion on the vehicle outer side can be rotated up and down, and the side portion on the vehicle inner side is connected to the hook 7A. And the striker Fs are connected to the floor F so as to be detachable. As a result, the seat cushion 3 is held in a use position in which the seat cushion 3 is brought down on the floor F as a state in which the hook 7A and the striker Fs are engaged when the seat cushion 3 is normally used. And the striker Fs are disengaged so that the hinge mechanism 6 can be switched to a state of being flipped up from the floor F. The flip-up rotation of the seat cushion 3 is restricted to the storage position where the seat cushion 3 is in the standing posture shown in FIG. 1 by the locking by the stopper structure (not shown) set in the hinge mechanism 6 described above. ing.

  The striker Fs described above is installed at two positions on the front and rear of the floor F, and the hooks 7A to be engaged with and disengaged from the striker Fs are provided on the bottom of the seat cushion 3 and can be stored and deployed. 7 is provided in a state where two are arranged side by side in the front and rear. The hooks 7A described above are operated so as to be pushed into the strikers Fs on the floor F from the upper side, so that the hooks 7A are operated and hooked on the strikers Fs. The striker Fs is locked in a state where it is prevented from coming off. Each of the hooks 7 </ b> A is operated by the release strap 3 </ b> B provided at the rear portion of the seat cushion 3, and the seatback 2 is folded down to the position where the seatback 2 is folded into the upper surface of the seat cushion 3. It is operated so as to be disengaged from the engaged state with each striker Fs through a pulling operation of an operation cable (not shown) that is picked up and operated. In addition, since the engagement / disengagement structure of each hook 7A with respect to each striker Fs has the same known configuration as that disclosed in a document such as Japanese Patent Application Laid-Open No. 2009-179091, a specific description thereof will be given. Will be omitted.

  That is, the vehicle seat 1 is folded up to a position where the seat back 2 overlaps the upper surface of the seat cushion 3 by operating the release strap 3B described above (see FIG. 3), and each striker by each hook 7A. The engagement state with Fs is released, and the state is switched to a state in which it is flipped up from the use position on the floor F (see FIG. 3) to the storage position (see FIG. 1) facing the side wall W of the vehicle in the folded state described above. It is supposed to be configured. Therefore, after the operation of the release strap 3B, the vehicle seat 1 is flipped up to the side so that the vehicle seat 1 is stored in the storage position in the folded position as shown in FIG. be able to.

  As shown in FIG. 2, the support plate 7 has one end (the upper end in the figure) hinged to the bottom of the seat cushion 3 so as to be rotatable. As shown in FIG. As shown in FIG. 2, the seat cushion 3 can be rotated upside down between a state where the seat cushion 3 is folded and a state where the seat cushion 3 is deployed so as to stand downward. . The support plate 7 is normally in a state of being rotationally urged in a direction to expand downward by an urging force of a torsion spring (not shown) that is hooked between the support plate 7 and the bottom of the seat cushion 3. As shown in FIG. 2, when the seat cushion 3 is in the use position in which the seat cushion 3 is pushed down on the floor F, the seat cushion 3 is unfolded to a position that hangs straight down from the bottom of the seat cushion 3 by the spring force. It is in a stopped state.

  The support plate 7 is operated by picking up this movement when the release strap 3B is operated so that the vehicle seat 1 is folded and flipped up from the floor F to the side. The cable is operated so as to be gradually folded toward the bottom of the seat cushion 3 through a cable pulling operation. With the above-described operation structure, the support plate 7 can be used as a seat cushion in a state in which the vehicle seat 1 is folded and raised to the storage position facing the side wall W of the vehicle as shown in FIG. 3 is held in a compactly stored state by being folded at the bottom.

  Further, when the support plate 7 is dropped from the storage position where the vehicle seat 1 is flipped up to the use position on the floor F, the above-described operation cable (not shown) is loosened, so that the above-described twisting is performed. The urging force of the spring gradually expands from the bottom of the seat cushion 3 to the lower side. As a result, as shown in FIG. 2, the support plate 7 is raised to a position where the seat cushion 3 is deployed straight down from the bottom of the seat cushion 3 when the seat cushion 3 is lowered to the use position on the floor F. It is designed to be held.

  Next, the configuration of the lock mechanism 10 will be described. As shown in FIGS. 4 to 6, the lock mechanism 10 includes a base plate 11, a rail 12, a fixing member 13, a hinge bracket 14, a slider 15, a tension spring 16, and a lid cover 17. ing. The base plate 11 is provided in a state of being integrally coupled on the side wall W of the vehicle. The rail 12 is provided in a state of being integrally coupled to the base plate 11 described above, and is formed in a shape having a guide structure that can be assembled in a state in which a slider 15 described later can be slid in the front-rear direction. The fixing member 13 is formed of a hollow round steel bar bent in an L-shape, and a hinge bracket 14 serving as a support member can be rotated upside down via a hinge pin 14A at an end portion on the root side. The state is hinged to the state.

  Two hinges 15 having a hat-shaped cross section are attached to the hinge bracket 14 at positions arranged in the front-rear direction. The fixing member 13 is assembled in such a manner that the sliders 15 attached to the hinge bracket 14 described above are slidable in the front-rear direction through the rails 12 described above. The slidable state is assembled and supported. Further, the fixing member 13 is dropped with respect to the hinge bracket 14 to the use position raised to the horizontal position toward the inner side of the vehicle centering on the hinge pin 14A and the position hanging straight down. It is in a state of being supported so as to be able to rotate up and down between the storage position and the storage position. When the fixing member 13 is raised to the horizontal position toward the inner side of the vehicle, the arm shape that is bent and extends in an L shape extends from the side wall W of the vehicle to the inner side of the vehicle and extends forward from there. It is supposed to be in a state of being bent and extended in the direction of extension.

  The fixing member 13 is held in a state in which the fixing member 13 is prevented from rotating by its own weight so as not to drop due to its frictional force due to the fitting of the hinge pin 14A at each position rotated up and down with respect to the hinge bracket 14. It has come to be. As a result, the user can hold the fixing member 13 at an appropriately adjusted rotational position by gripping the fixing member 13 and raising or dropping it to a desired position. Here, as shown in FIG. 6, a tension spring 16 is hooked between the front slider 15 attached to the fixing member 13 and the front end portion of the rail 12. By this tension spring 16, the fixing member 13 is always biased in a direction of sliding forward with respect to the rail 12.

  By the way, the above-described base plate 11 is mounted with a resin cover 17 that covers the entire base plate 11 from the inside of the vehicle. The lid cover 17 has a slide hole 17A penetrating in a shape extending straight in the front-rear direction along the slide path of the rail 12 on which each slider 15 slides, and extends downward from the rear end of the slide hole 17A. A storage groove 17B that is bent in the front side and extends in an L-shape is formed. The former slide hole 17 </ b> A functions as a through hole for allowing the fixing member 13 that slides along the slide path of the rail 12 to slide outside the cover cover 17. The latter storage groove 17B is formed by rotating the fixing member 13 so as to drop downward about the hinge pin 14A when the above-described fixing member 13 is slid to the end position of the rail 12 (slide hole 17A). It functions to hold the fixing member 13 in a state of being stored therein.

  Specifically, the storage groove 17B has a groove width and a groove depth slightly larger than the cross-sectional shape of the fixing member 13 so that the fixing member 13 can be received inside with a margin, and is fixed. The member 13 is formed in a groove shape having a curved cross-sectional shape along the curved cross-sectional shape. Thereby, as shown in FIG. 5, the fixing member 13 can be stored in a state of being completely stored in the storage groove 17B. Further, as shown in FIG. 4, a finger inlet 17C having a shape in which the groove width of the storage groove 17B is partially expanded upward and opened at the middle portion of the groove that is bent and extends forward of the storage groove 17B. Is formed. This finger inlet 17C functions as a door for allowing a finger to be pulled out from here when the fixing member 13 stored in the storage groove 17B is pulled out from the storage groove 17B. It has become.

  In addition, an engaging protrusion 17D is formed at the lower portion of the storage groove 17B where the finger inlet 17C is formed, with an edge projecting into the opening of the storage groove 17B protruding into the groove. The engaging protrusion 17D has a shape projecting into the opening of the storage groove 17B, and is pushed by the pressing force of the fixing member 13 when the fixing member 13 is retracted into the storage groove 17B and stored. It is bent and deformed, and then restored and protrudes into the storage groove 17B, and functions to hold the fixing member 13 so as not to come out of the storage groove 17B.

  Further, at the front end portion of the groove that is bent and extends forward of the storage groove 17B, the fixing member 13 stored in the storage groove 17B moves toward the front side by the biasing force of the tension spring 16 described above. A stopper 17E is provided to restrict the movement. Due to the restriction structure by the stopper 17E, the fixing member 13 contacts the peripheral wall of the storage groove 17B without being pressed against the inner wall of the storage groove 17B by the urging force of the tension spring 16 when stored in the storage groove 17B. It is held in a floating state at an intermediate position. Thereby, when pulling out the fixing member 13 from the storage groove 17B, the fixing member 13 can be pulled out smoothly without being caught in the storage groove 17B.

  As shown in FIG. 3, the fixing member 13 is pulled out from the storage groove 17B and raised to the horizontal position, so that the arm portion extending forward is flipped up to the storage position. The seat 1 is positioned at the rear position of the gap 1 </ b> A between the seat back 2 and the seat cushion 3. Further, the fixing member 13 is pulled out from the storage groove 17B and raised to a horizontal position, so that the fixing member 13 is urged to slide forward by the action of the urging force of the tension spring 16 described above. It is supposed to be. Therefore, after the vehicle seat 1 is flipped up to the storage position, the above-described fixing member 13 is pulled out of the storage groove and raised to the horizontal position, and is slid forward by the urging force of the tension spring 16. Accordingly, the fixing member 13 can be inserted into the gap 1 </ b> A of the vehicle seat 1. By this insertion, the seat back 2 is supported by the fixing member 13 from the inside of the vehicle, and the vehicle seat 1 is held in a state of being flipped up to the storage position.

  Specifically, the fixing member 13 includes a soft portion (a portion that functions as a backrest surface) in which the pad 2A in the seat back 2 of the vehicle seat 1 is built, and a pad 3A in the seat cushion 3. It is sandwiched between a soft portion (a portion functioning as a seating portion) with a resilient force, and is engaged with the seat back 2 as it receives the resilient force of the pads 2A and 3A. It has become. Thereby, the elastic action of both the pads 2A and 3A acts on the pushed-in fixing member 13 so that the vehicle seat 1 is not rattled at the storage position by the fixing member 13 that has received the elastic action. It is designed to be held down.

  More specifically, the fixing member 13 has a narrow gap in the vehicle seat 1 in which the seat back 2 and the seat cushion 3 are folded and the pads 2A and 3A are crushed. By being pushed into 1A, the pad 2A of the seat back 2 is pushed and bent, and is inserted into the gap 1A (that is, from the rear side to a position where it interferes with the pad 2A of the seat back 2). It is configured to be plugged in). As a result, when the fixing member 13 is inserted in the gap 1A of the vehicle seat 1, the pressing force that pushes and flexes the pad 2A of the seat back 2 toward the outside of the vehicle is applied. As a state in which the vehicle seat 1 is strongly pressed to the outside of the vehicle, the vehicle seat 1 is held so as not to rattle at the storage position.

  Further, the height position at which the fixing member 13 is inserted into the gap 1A of the vehicle seat 1 is a position closer to the upper side than the center position in the height direction of the vehicle seat 1 jumped up to the storage position. ing. Accordingly, the holding of the vehicle seat 1 by the fixing member 13 is performed at a position farther from the center (the hinge mechanism 6) of the raising of the vehicle seat 1, and the vehicle seat applied to the fixing member 13 The moment load due to its own weight is light, and the fixing member 13 holds the vehicle seat 1 in the storage position more stably.

  Next, an operation for returning the vehicle seat 1 from the storage position to the use position will be described. First, as shown in FIG. 3, the fixing member 13 inserted into the gap 1 </ b> A of the vehicle seat 1 is pulled rearward by the locking operation described above, and is released from the engaged state with the vehicle seat 1. As a result, the locked state at the storage position of the vehicle seat 1 is released. Therefore, the vehicle seat 1 is dropped onto the floor F and the hooks 7A described above are pushed into the strikers Fs on the floor F to be engaged. Thus, the vehicle seat 1 can be returned to the use position on the floor F. Since the fixing member 13 is constantly urged to slide forward by the urging force of the tension spring 16 described above, after the vehicle seat 1 is dropped onto the floor F, Or, after pulling out from the gap 1A of the vehicle seat 1, the fixing member 13 is slid to the rear end position of the rail 12 and is lowered to be stored in the storage groove 17B. It is possible to return to the stored state in which the side wall W does not protrude.

  Since the fixing member 13 has an arm shape that is bent in an L shape from the connecting portion with the side wall W of the vehicle and extends forward, the purpose is not to hold the vehicle seat 1 in the storage position. In addition, it can be used by hooking or hanging shopping bags or items with handles. Therefore, even when the vehicle seat 1 is used for sitting, the fixing member 13 can be pulled out of the storage groove 17B and used for the above purpose, which is convenient.

  Thus, according to the configuration of the lock mechanism 10 of the present embodiment, the vehicle seat 1 can be locked in the storage position without providing any lock structure on the vehicle seat 1. The locking mechanism 10 is located on the side wall W of the vehicle from which the vehicle seat 1 is flipped up to a relatively high rearward position (from the rear side to a position closer to the upper side than the center of the raised vehicle seat 1). The position where the vehicle seat 1 is stored can be easily adjusted to the fixing member 13 from the position standing rearward of the vehicle by opening the hatch back door. And can be pulled out from the storage groove 17B or slid forward.

  Specifically, the fixing member 13 is configured to be lifted upward from the storage groove 17B and raised to a horizontal position as a use position, and therefore a portion to be gripped when the fixing member 13 is pulled up (front side) The arm portion that is bent and extended to the lower position is relatively easy to reach during storage, but when the vehicle seat 1 is locked in the storage position, the fixing member 13 is raised to a higher position. By pulling up, the vehicle seat 1 can be stably held at a higher position.

  Further, the finger entrance (finger entrance 17C) formed in the lid cover 17 is formed in such a manner that the groove width is expanded on the inner corner side (upper side in this embodiment) of the storage groove 17B bent in an L shape. Therefore, the finger inlet 17C is formed in a compact shape that does not protrude to the outer corner side of the storage groove 17B, and has a configuration that facilitates a hooking operation in which a finger can be hooked on the fixing member 13 from above. It has become. Further, since the fixing member 13 is configured to be inserted straight into the gap 1A of the vehicle seat 1 from the rear side and engaged therewith, the up-and-down rotation direction of the vehicle seat 1 and the fixing member 13 is orthogonal to each other, and the fixing member 13 is difficult to be removed from the gap 1A of the vehicle seat 1 and can be stably held by the fixing member 13. In addition, the fixing member 13 is lifted from the retracted position to the horizontal position by the tension spring 16 provided in the lock mechanism 10 so that it is automatically moved forward in the insertion direction. Therefore, the operation of inserting the fixing member 13 into the gap 1A of the vehicle seat 1 is assisted by the urging force, and the operation can be easily performed.

  Next, the configuration of the lock mechanism 10 according to the second embodiment will be described with reference to FIG. In the present embodiment, portions that are substantially the same in configuration and operation as those of the lock mechanism 10 shown in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and different portions are described in detail. I decided to. In this embodiment, as shown in FIG. 7, the vehicle seat 1 is stored by being dropped from the use position on the floor F to the storage position in the recess Fh below the floor F, and the lock mechanism. 10 is provided on the floor F and functions to lock the vehicle seat 1 dropped into the storage position in the storage position.

  Specifically, the vehicle seat 1 has a structure connected to the floor F via the link 9 so as to be movable between the use position and the storage position. The seat back 2 is folded into the upper surface portion of the seat cushion 3 and is moved backward into the recess Fh below the floor F to be dropped, so that the seat back 2 is compactly stored in the recess Fh. It is like that. After the vehicle seat 1 is dropped into the storage position, the L-shaped fixing member 13 of the lock mechanism 10 is slid forward so as to protrude into the recess Fh, so that the vehicle seat 1 By pushing into the gap 1A between the seat back 2 and the seat cushion 3 from the rear side, the vehicle seat 1 is locked as being pushed into the recess Fh.

  The fixing member 13 is provided in such a state that a portion that bends and extends to the front side of the L-shape is embedded in the floor F, and a portion that bends and extends to the upper side of the L-shape is exposed on the floor F. By sliding the exposed portion on the floor F as a knob, the portion that bends and extends forward of the fixing member 13 can be pushed into the gap 1 </ b> A of the vehicle seat 1.

  Similarly to the configuration shown in the first embodiment, the fixing member 13 includes a soft portion (a portion functioning as a backrest surface) in which the pad 2A of the seat back 2 of the vehicle seat 1 is provided and a resilient force acts. In the state where the pad 3A in the seat cushion 3 is elastically pressed between the soft part (the part functioning as a seating part) and the elastic force of the pads 2A and 3A is received. These are engaged. Thereby, the elastic action of both the pads 2A and 3A acts on the pushed-in fixing member 13 so that the vehicle seat 1 is not rattled at the storage position by the fixing member 13 that has received the elastic action. It is designed to be held down.

  More specifically, the fixing member 13 has a narrow gap in the vehicle seat 1 in which the seat back 2 and the seat cushion 3 are folded and the pads 2A and 3A are crushed. By being pushed into 1A, the pad 3A of the seat cushion 3 is pushed and bent, and is inserted into the gap 1A (that is, from the rear side to a position that interferes with the pad 3A of the seat cushion 3). It is configured to be plugged in). Thus, when the fixing member 13 is inserted into the gap 1A of the vehicle seat 1, the fixing member 13 is in a state in which a pressing force is applied to push and bend the pad 3A of the seat cushion 3 toward the bottom surface side of the recess Fh. As a state in which the cushion 3 is strongly pressed against the bottom surface of the recess Fh, the vehicle seat 1 is held so as not to rattle at the storage position.

  Subsequently, the configuration of the lock mechanism 20 of the third embodiment will be described with reference to FIGS. In the present embodiment, portions that are substantially the same in configuration and operation as those of the lock mechanism 10 shown in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and different portions are described in detail. I decided to. In the present embodiment, as shown in FIG. 8, the seat back of the seat 100 on the front row side in the folded state in which the vehicle seat 1 is folded from the use position on the floor F to the upper surface of the seat cushion 3. 110. The storage mechanism is configured to be stored by being flipped up to the storage position in a vertical posture facing 110, and the lock mechanism 20 is provided on the back surface of the seat back 110 of the seat 100 on the front row side. It functions to lock the vehicle seat 1 that is flipped up to the storage position.

  Specifically, the seat 1 for the vehicle is hinged so that the front lower portion of the seat cushion 3 can be rotated up and down by the hinge mechanism 8 with respect to the floor F. 2 is folded into the upper surface of the seat cushion 3 and is flipped forward about the hinge mechanism 8 to be compact in the storage position facing the back of the seat back 110 of the seat 100 on the front row side. It is supposed to be stored. And after jumping up the vehicle seat 1 to the said storing position, the fixing member 22 formed in the L-shape of the lock mechanism 20 is raised from the back surface of the seat back 110, and the seat back 2 of the vehicle seat 1 and By inserting the vehicle seat 1 from above into the gap 1A between the seat cushion 3 and the seat cushion 3, the vehicle seat 1 is held in a locked state by the fixing member 22 so as not to fall down. .

  As shown in FIG. 9, the lock mechanism 20 includes a base plate 21, a fixing member 22, and a lid cover 23. The base plate 21 is coupled and fixed to the back portion of the seat back 110 of the seat 100 on the front row side. The fixing member 22 is pivotally supported with respect to the base plate 21 so as to be able to rotate in the front-rear direction so that the end portion on the base side is pulled out from the back portion of the seat back 110 or accommodated in the back portion of the seat back 110 by the hinge 22A. It is supposed to be in a state. Further, the fixing member 22 is configured such that its L-shaped node portion is pivotally mounted by a hinge 22B so that the swinging movement is possible, and the arm portion on the tip side is the same as the arm portion on the root side. It is configured to be swung around an axis in the extending direction of the portion. The lid cover 23 is mounted so as to cover the base plate 21 from the rear side. The lid cover 23 is formed with a storage groove 23 </ b> A that is recessed in an L shape so that the fixing member 22 can be stored flush with the back surface of the seat back 110.

  As shown in FIGS. 8 to 9, the fixing member 22 is stored in the storage groove 23 </ b> A of the lid cover 23 at all times before the vehicle seat 1 is folded and flipped up to the front side. After the vehicle seat 1 is flipped up to the front side, the vehicle seat 1 is rotated so as to be pulled out rearward about the root side hinge 22A, and the distal end side arm is centered on the other hinge 22B. The head portion is swung so as to be lifted upward, and the arm portion on the front end side is positioned just above the gap 1A between the seat back 2 and the seat cushion 3 of the vehicle seat 1 that is flipped up, Thereafter, the vehicle arm 1 is locked in the retracted storage position by dropping the arm portion on the front end side into the gap 1A of the vehicle seat 1 and inserting it.

  Specifically, the fixing member 22 functions as a backrest surface (a backrest surface) in which the elastic force is exerted, in which the pad 2A in the seat back 2 of the vehicle seat 1 is built, similarly to the configuration shown in the first embodiment. Part) and a soft part (a part functioning as a seating part) in which the pad 3A is embedded in the seat cushion 3 and pressed between them, and receives the elasticity of the pads 2A and 3A. They are engaged with each other as a state. Thereby, the elastic action of both the pads 2A and 3A acts on the pushed-in fixing member 22 so that the vehicle seat 1 is not rattled at the storage position by the fixing member 22 that has received the elastic action. It is designed to be held down.

  More specifically, the fixing member 22 has a narrow gap in the vehicle seat 1 in which the seat back 2 and the seat cushion 3 are folded and the pads 2A and 3A are crushed. By being pushed into 1A, the pad 2A of the seat back 2 is pushed and bent, and is inserted into the gap 1A (that is, from the upper side to a position that interferes with the pad 2A of the seat back 2). It is configured to be plugged in). Thereby, in the state where the fixing member 22 is inserted into the gap 1A of the vehicle seat 1, the pressing force that pushes and bends the pad 2A of the seat back 2 forward is applied and the seat back 2 is moved. As a state in which the front seat is strongly pressed toward the seat back 110, the vehicle seat 1 is held so as not to rattle at the storage position. The hinge mechanism 8 that is the center of the vehicle seat 1 is provided with a stopper structure (not shown) that restricts the position of the vehicle seat 1 to the vertical position.

  As mentioned above, although embodiment of this invention was described using the three Examples, this invention can be implemented with various forms other than the said Example. For example, in the above-described embodiment, the vehicle seat 1 is folded and held in the retracted position toward the side wall W of the vehicle (corresponding to the “lock mechanism” of the present invention) (Embodiment 1). ), In which the vehicle seat 1 is folded and held in the storage position dropped into the recess Fh below the floor F (Example 2), and the vehicle seat 1 is folded and stowed forward Examples held in position (Example 3) were illustrated. However, the “lock mechanism” of the present invention can be used for applications other than the above as long as it is used for the purpose of locking the vehicle seat to the storage position moved from the use position on the floor F. Is something that can be done. For example, (a) the vehicle seat is folded and held in a position flipped up to the rear side, (b) the vehicle seat is folded and dropped under the floor F (tilt down state) (C) Holding the vehicle seat in a state of being flipped up sideways toward an adjacent seat, (d) Holding the vehicle seat in a folded state and being flipped up to the ceiling And what to do. By providing the “lock mechanism” of the present invention at the position of the storage movement destination with respect to such various types of storage structures, the vehicle seat can be mounted in various ways without providing any lock structure on the vehicle seat. It can be locked in the proper storage position. Further, the “vehicle seat” of the present invention may be a seat disposed in any row of the vehicle.

  In addition, if the “fixing member” of the “lock mechanism” of the present invention is configured to be pushed into the gap between the seat back and the seat cushion of the vehicle seat in the folded state, It may be inserted from any direction into the gap between the vehicle seats stored in the storage position. For example, the configuration shown in the first embodiment (see FIG. 1) will be described as an example. The fixing member 13 is arranged in the vertical direction with respect to the vehicle seat 1 that is flipped up to a position facing the side wall W of the vehicle. It may be inserted from the exposed gap 1A, or may be inserted from the exposed gap 1A. Further, when the configuration shown in the second embodiment (see FIG. 7) is described as an example, the fixing member 13 is located on the side of the vehicle seat 1 dropped into the recess Fh below the floor F. It may be inserted from the exposed gap 1A, or may be inserted from the exposed gap 1A. Further, the structure shown in the third embodiment (see FIG. 8) will be described as an example. The fixing member 21 is formed on the vehicle seat 1 that is flipped up to a position facing the back surface of the seat back 110 of the seat 100 on the front row side. On the other hand, it may be inserted from the gap 1A exposed to the side, or may be inserted from the gap 1A exposed to the lower side. In addition, the “lock mechanism” of the present invention may be provided at the position of the storage destination of the vehicle seat, and may be a peripheral object (floor, side wall of the vehicle, or another seat) of the storage destination. Any object may be provided.

  Moreover, about the "lock mechanism" of this invention, although Example 1-2 showed the structure which slides straight with respect to the object part to which the fixing member 13 was attached, and inserts it in the clearance gap 1A of the vehicle seat 1. FIG. The “fixing member” of the present invention is connected to the object to be attached by a hanging tool such as a strap or a chain, and is operated to be inserted into the gap by bending or bending the hanging tool. It may be a thing. Moreover, in Example 1, although the fixing member 13 was folded by the downward side with respect to the target object (vehicle side wall) to which the fixing member 13 was attached, the structure made it possible to store in the state with few protrusions was illustrated. The “fixing member” may not be stored. Moreover, it may be folded and stored on the upper side. In the case of a configuration in which the fixing member is folded and stored in the upper side, there is a problem that if the use position where the fixing member is dropped down to the horizontal position is set to a high position, the storage position becomes too high. If the structure is locked when the fixing member is dropped down to the horizontal position, the holding force when hanging or hanging a shopping bag or something with a handle is increased. Can do.

DESCRIPTION OF SYMBOLS 1 Vehicle seat 1A Clearance 2 Seat back 2A Pad 3 Seat cushion 3A Pad 3B Release strap 4 Headrest 5 Reclining device 6 Hinge mechanism 7 Support plate 7A Hook 8 Hinge mechanism 9 Link 10 Lock mechanism 11 Base plate 12 Rail 13 Fixing member 14 Hinge bracket 14A hinge pin 15 slider 16 tension spring 17 lid cover 17A slide hole 17B storage groove 17C finger inlet 17D engagement protrusion 17E stopper 20 lock mechanism 21 base plate 22 fixing member 22A hinge 22B hinge 23 lid cover 23A storage groove 100 front row side sheet 110 sheet Back F Floor Fs Striker Fh Concave W Side wall

Claims (3)

A lock mechanism capable of locking a vehicle seat from a use position on a floor to a storage position,
A fixing member that is provided at a position where the vehicle seat is stored and moved, and can be fixed to the storage position by engagement with the vehicle seat;
The vehicle seat is configured to be stored in the storage position in a folded state in which a seat back is folded on an upper surface portion of a seat cushion,
The fixing member is configured to be pushed into a gap between the seat back and the seat cushion to engage with the vehicle seat folded in the storage position. A lock mechanism. The locking mechanism according to claim 1,
The vehicle seat is configured to be stowed up and stored from the floor to the storage position facing the side wall of the vehicle in the folded state,
The fixing member is provided on a side wall of the vehicle, and can be pushed into the gap of the vehicle seat that is flipped up to the storage position by a switching structure provided between the fixing member and the side wall of the vehicle. A lock mechanism, wherein the lock mechanism is switched between a use state protruding from a side wall of the vehicle and a retracted state retracted so that a protrusion from the side wall of the vehicle is reduced. The locking mechanism according to claim 1 or 2,
A locking mechanism comprising a slide structure that guides the fixing member so that the fixing member can be pushed into the gap of the vehicle seat by sliding.

Images