JPH0523959U - Legrest support structure for vehicle seats - Google Patents

Abstract

(57) [Abstract] [Purpose] The legrest support structure for placing the user's shin on is simple, which improves durability, reduces the overall weight, and makes it easy to operate the legrest. What to do. [Structure] A support bracket 21 attached to a front end of a seat frame 12, and a support arm 2 supported by the support bracket 21 via a front roller 23 and a take-up roller 24.
2, a regress 20 that tilts at a front end of the support arm 22 within a predetermined range, and a winding spring 25 that is wound around a winding roller 24 of a support bracket 21 and has its front end connected to the rear end of the support arm 22. , A stopper 26 provided on the support bracket 21 to restrict the slide of the support arm 22.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a support structure for a regress in a vehicle seat.

[0002]

[Prior Art]

 In vehicle seats, in order to make it easier for passengers to sit down, a legrest is used to support the legs, especially the shins. By using this regrested together with a reclining seat back, it is very convenient because the entire seat can be used as a temporary sleeper, especially when driving at night on vehicles such as long-distance buses. However, in such a case, the very convenient regress is a mere obstacle if it is not necessary to use it, so store it so that it is not disturbed when not in use and It is designed so that it can be taken out according to the requirements.

As a regressor that can be freely stored and taken out as described above, for example, in Japanese Utility Model Laid-Open No. 2-41836, “A pair of arms that are erected on the rear part of the base frame of the seat, each of the rear parts of the bottom frame is provided. An end frame is pivotally mounted so that it can swing up and down, and an inside frame, in which a leg rest is slidably inserted, is pivotally mounted on the front end of the leg, and the rear end of the leg rest is rearward. An automatic drive leg rest mechanism has been already proposed, which is characterized by being configured so that it can be pressed to be stopped from the use position as needed. In this "automatic drive leg rest mechanism", the bottom frame is connected to the arm at the rear of the base frame, the inside frame is connected to the front end of this bottom frame, and the front end of the base frame moves up and down as the regress tilts. The inside frame is slidably inserted in the regress to freely tilt each part, and its structure is very complicated. Adopting such a complicated structure for the regress that is used only for mounting the shin is not preferable either in terms of cost or durability. .. In particular, in the current situation where the weight of each equipment is being reduced as a part of sufficient energy-saving measures such as vehicles in recent years, weight increase due to the complicated structure etc. should be avoided as much as possible. There is nothing. Moreover, for vehicles that must make effective use of a small space such as a vehicle, even if it has a convenient function, a configuration that makes effective use of that limited space Otherwise, it will be of no use.

Further, in the “automatic drive leg rest mechanism” proposed in Japanese Utility Model Laid-Open No. 2-41836, the tilting angle of the “leg rest” can be freely adjusted, but it is used. It is considered difficult to make adjustments according to the length of the shin to match the person's physique. In other words, even considering children and adults as users, the lengths of their legs are different, and it is considered that the above "leg rest" cannot correspond to the difference in their physique.

Therefore, the inventor of the present invention has completed the present invention as a result of various studies on how to achieve the maximum function as a regression with the minimum necessary configuration. is there.

[0006]

[Problems to be solved by the device]

 The present invention has been made based on the above-mentioned background, and the problem to be solved is the simplification in the support structure of this type of regress.

The object of the present invention is to make the support of the regress extremely easy and efficient, so that it can be used in a sufficient condition when it is needed and is durable. The object is to provide a support structure for a regressor that can achieve excellent usability and weight reduction and can be very convenient to use.

[0008]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the means adopted by the present invention will be described with reference to the reference numerals used in the embodiments, "supporting the regressor 20 arranged in front of the cushion 11 of the vehicle seat 10. The support bracket 21 attached to the front end of the seat frame 12 supporting the cushion 11 and the support bracket 21 slidable in the front-back direction of the cushion 11 via a plurality of rollers 23 and 24. The supported support arm 22, the regress 20 supported by the front end of the support arm 22 and tilting within a predetermined range, and the roller 24 of the support bracket 21 supported by the roller 24 so that the front end is the rear end of the support arm 22. The take-up spring 25 connected to the support bracket 21 and the stopper 26 provided on the support bracket 21 for restricting the slide of the support arm 22. The support structure of the regress 20 characterized by being configured ".

[0009]

[Mode of operation and use of device]

 Next, the operation of the support structure according to the present invention will be described together with the mode of use of the regress 20 adopting this structure.

First, as shown in FIG. 1, a vehicle seat 10 provided with this regress 20 has a cushion 11 supported on a seat frame 12 fixed on the floor surface of the vehicle, and a cushion 11 for the cushion 11. A seat back 13 that can be reclined is provided, but a legrest 20 is arranged on the front end side of each cushion 11 that constitutes the vehicle seat 10. When not used, the regress 20 is stored under the front end of the cushion 11 like the vehicle seat 10 on the front side in FIG. 1, and when it is used, the regress 20 shown in FIG. As in the vehicle seat 10 on the other side, the cushion 11 is projected forward of the cushion 11.

That is, in the stored state, the regress 20 is supported as shown in FIG. 2. In this case, each winding spring 25 is in the fully extended state, Therefore, the support arm 22 supporting the regress 20 is restricted from projecting forward by the stopper 26. Conversely, if the restriction by the stopper 26 is released, the support arm 22 projects toward the front of the cushion 11 by the action of each winding spring 25, so that the regress 20 can be used in front of the cushion 11. Preparations are being made to make it happen.

Further, in the retracted state 20 in the stored state, as shown also in FIG. 1, the front end of the cushion 11 hangs downward and the movement of a passenger using the vehicle seat 10 and the like. It doesn't get in the way. This is because the regress 20 is attached to the tip of the support arm 22 so as to be tiltable, and the attachment position is the upper part of the regress 20. In the present embodiment, a storage protrusion 21c is provided at the front end of the support bracket 21 so as to project upward from the connecting portion between the regress 20 and the support arm 22. Since the storage projections 21c are brought into contact with each other, the lower part of the regress 20 is positively stored under the cushion 11, so that the regress 20 is more likely to be stored when the regress 20 is not used, that is, during storage. It is even less disturbing.

Next, when using the regress 20, the user operates the operation handle 27. That is, the stopper 26 is disengaged from the support arm 22 by pulling up the operation handle 27, so that the support arm 22 tries to rewind the take-up springs 25 that have been in the fully extended state. The force pushes the support bracket 21 forward. As a result, the regressor 20 provided at the tip of the support arm 22 can be used in a state where it protrudes in front of the cushion 11 as shown in the vehicle seat 10 on the opposite side in FIG. 1 and the phantom line in FIG. It becomes a state. Of course, the preferable amount of protrusion of the regress 20 is different depending on the body shape of the user. However, if the user thinks that the amount of the regress 20 has protruded by an appropriate amount, he / she can remove the hand from the operation handle 27, and at that position of the support arm 22. The movement is fixed and the position of the regress 20 is also fixed. That is, since the operation handle 27 is provided with the spring 27a that constantly urges the stopper 26 toward the support arm 22, the support arm 22 can be fixed at any place according to the preference of the user.

After the above, the user can take a comfortable posture by placing the shin on the regress 20. In this case, since the regress 20 is tiltably connected to the tip portion 22a of the support arm 22, the angle of the user with respect to the shin is the direction of the shin as shown by the phantom line in FIG. Always agrees with.

Then, when it is not necessary to use the regress 20 and the user wants to store it, the support arm 22 can be freely moved by operating the operation handle 27 and, for example, a force is applied to the shin portion that has been mounted up to that time. By pushing in the regress 20 by inserting, the regress 20 can be easily returned to the storage state as described above.

In the embodiment described below, the operation of moving the regressor 20 in and out is performed in a stable state for the following reason. First, as shown in FIG. 6, the support arm 22 supporting the regress 20 is always in contact with the left and right roller portions 24a of the two winding rollers 24 around which the winding spring 25 is wound. This also applies to the roller portion 23a of the front roller 23 located in front of each winding roller 24. That is, the front end of the take-up spring 25 is wound around each take-up roller 24 by the take-up action of the take-up spring 25 itself, and the take-up spring 25 is placed between both roller portions 24a of each take-up roller 24. Since the winding spring 25 is wound up in the spring housing portion 28 located therewith, even if the winding spring 25 is wound around the winding rollers 24 to the maximum extent, this causes each roller portion 24a of the winding roller 24 to move from the support arm 22. You will never leave. The front roller 23 is also formed in the same manner as the take-up roller 24, and the spring accommodating portion 28 is formed between the roller portions 23a located on both sides of the front roller 23. Even if it is used as a take-up roller for, the same operation as that of the take-up roller 24 described above is performed. Of course, as shown in FIG. 6, flange portions 23b and 24a which come into contact with both end surfaces of the support arm 22 are formed at both ends of the front roller 23 and the take-up roller 24, respectively. It is natural that the support arm 22 can be moved back and forth in a stable state by means of 24a and 24a.

Further, in this embodiment, the two winding springs 25 arranged above and below the support arm 22 are wound around the two winding rollers 24 located above and below the support arm 22. Therefore, the force of each winding spring 25 is evenly applied to the support arm 22. Therefore, the winding spring 25 can project forward in a stable state by these two winding springs 25. Of course, the same stability can be obtained when a total of four winding springs 25 are wound around each of the front roller 23 and the winding roller 24.

As described above, in the support structure for the regress 20, the usability of the regress 20 is very good, and in addition to being able to move the regress 20 in and out in a stable manner, The entire structure itself is greatly simplified, and the weight is reduced as a whole as compared with the conventional example described above. Of course, in this support structure, it is possible to exert a sufficient function of supporting the shin of the user's leg, especially the shin at an appropriate position when necessary.

[0019]

【Example】

 Next, the support structure of the regress 20 according to the present invention will be described in detail with reference to the embodiments shown in the drawings.

FIG. 1 is a perspective view of two vehicle seats 10 that employ a support structure according to the present invention. In this figure, a front-side regressor 20 is retracted, and a side facing the same is illustrated. The regress 20 of the above is projected to the front of the cushion 11 so that it can be used. Each vehicle seat 10 has a cushion 11 provided on a seat frame 12 fixed on the floor surface, and a seatback 13 that can recline with respect to the cushion 11. A storage portion 11a for storing the legrest 20 is formed on the lower surface of the front end of the.

The seat frame 12 in this embodiment is as shown in FIGS. 3 and 4, and a fixing bracket 14 for fixing the support bracket 21 of the regress 20 is fixed to the front end portion of the seat frame 12. I am doing it. As shown in FIG. 4, the fixing bracket 14 has a locking pin 14a protruding rearward (on the right side in FIG. 4) to facilitate mounting of the support bracket 21 on the regress 20 side. A mounting hole 14b is formed on the front side of the locking pin 14a.

The support bracket 21 for the regress 20 is as shown in FIGS. 2, 5 and 6, and has a locking groove 21 a formed in the upper rear end of the fixing bracket 14 shown in FIG. It is fixed to the seat frame 12 by being locked to the locking pin 14a on the side and the fixing bolt 21b inserted into the mounting hole formed at the upper end of the drawing is also inserted into the mounting hole 14b on the side of the fixed bracket 14. It is supported by a fixed bracket 14. The support bracket 21 has a plurality of rollers (four in this embodiment) for guiding the support arm 22 supporting the regress 20 in the front-back direction of the cushion 11. In this embodiment, the two front rollers 23 are simply for guiding the support arm 22, and the two take-up rollers 24 behind the front roller 23 are for guiding the support arm 22. The take-up spring 25 is wound. The guide passage formed by each of the front roller 23 and the take-up roller 24 is substantially parallel to the floor surface of the vehicle.

Here, the structure of each take-up roller 24 in this embodiment will be described. Each take-up roller 24 has, as shown in FIGS. 5 and 6, a roller portion 24 a that comes into contact with the support arm 22 on both sides. In addition, a spring accommodating portion 28 for accommodating the winding spring 25 is formed between the roller portions 24a. Further, flange portions 24b are formed at both ends of each take-up roller 24 so as to abut against both end surfaces of the support arm 22 and guide the same. As a result, each winding roller 24 guides the support arm 22 in a stable state in a fixed direction, and winds the winding spring 25 in the spring accommodating portion 28. In this embodiment, each front roller 23 also has a structure similar to that of the take-up roller 24, and the front roller 23 and the take-up roller 24 stably guide the support arm 22 to the guide passage. I try to be sure. In this embodiment, two winding springs 25 are wound by each winding roller 24. However, in addition to each winding roller 24, each front roller 23 is also wound. Alternatively, the winding spring 25 may be wound, that is, the winding spring 25 may include two springs at the upper and lower sides of the support arm 22 for a total of four springs. With this arrangement, the support arm 22 can be reliably moved in and out even if the force of each winding spring 25 is weak. Of course, as long as the winding spool 25 has a sufficient winding action, one winding spool 25 may be used to be wound around one of the front roller 23 or the winding roller 24. Of course, in this case as well, since the front rollers 23 and the take-up roller 24 set the support arm 22 in a stable state as described above, the support arm 22 can be moved in and out, and thus the regressor 20 can be moved in and out. It can be done in a closed state.

The support arm 22 supporting the regress 20 is slidably guided in the guide passage formed by the front rollers 23 and the winding roller 24, and the rear end thereof is vertically moved. The ends of the pair of winding springs 25 are fixed. As a result, the support arm 22 is always urged by the winding action of each winding spring 25 so as to project to the front of the support bracket 21. Further, as shown in FIG. 5, the tip portion 22a of the support arm 22 is bent downward, and the upper portion of the regress 20 is rotatably connected to the tip portion 22a. That is, the regress 20 is connected so as to be in sliding contact with the tip portion 22a of the support arm 22. This allows the user to adjust the angle by applying a little force to the regress 20. There is one. In other words, the angle of the regress 20 is adapted to the angle only by the user contacting the shin on the regress 20. In the present embodiment, a part of the regress 20 is brought into contact with the tip 22a of the supporting arm 22 so that the rotation thereof can be restricted. Tilting is done within a certain range.

Further, the support arm 22 supporting the regress 20 must be fixed at a fixed place regardless of whether the support arm 22 is stored or projected, but it is supported by the fixing. It is a stopper 26 provided on the bracket 21 side. That is, as shown in FIGS. 2 and 5, the stopper 26 can be rotated with respect to the support bracket 21 located between the front roller 23 and the take-up roller 24 via the rotation shaft 26a. It is a roller-shaped part of which the diameter is partially increased. As shown in FIG. 5, one end of an operation handle 27 is fixedly connected to the rotary shaft 26a for the stopper 26, and the operation handle 27 has one end engaged with the support bracket 21. It is urged by the stopped spring 27a to rotate counterclockwise in the drawing. That is, the large-diameter portion provided on the stopper 26 is pressed against the lower surface of the support arm 22 guided and supported by the front roller 23 and the winding roller 24 by the biasing force of the spring 27a. Thus, the support arm 22 is fixed at a predetermined position, and the fixation thereof can be released by pushing down the tip of the operation handle 27.

As shown in FIG. 6, the support arm 22 in this embodiment is formed so that its cross-sectional shape is a substantially square, and the support arm 22 includes the front rollers 23. The stepped portion provided on the take-up roller 24 guides the sliding roller 24 when sliding. As described above, the end portion of the take-up spring 25 is fixed to the rear end of the support arm 22 with rivets, screws, or the like. I am trying to intervene. This stopper serves to prevent the support arm 22 from coming off the support bracket 21, and in the present embodiment, as shown in FIG. 2, it is formed as an L-shape that can abut the take-up roller 24. I am doing it. Further, in the present embodiment, as shown in FIG. 2, the storage protrusion 21c is formed on the front end surface of the support bracket 21 and above the connecting portion of the regress 20 to the support arm 22. is there. The storage projection 21c abuts on the upper rear surface of the regress 20 when it is desired to store the regress 20. As a result, as shown in FIG. The tilting of the regress 20 with respect to the support arm 22 is positively performed so that the legrest 20 is largely accommodated downward.

[0027]

[Effect of the device]

 According to the support structure configured as described above, the position and angle of the restrest 20 can be adjusted to a state according to the physique of the user, which allows the vehicle seat 10 to be seated for a long time. It can relieve the user's pain and discomfort, which he or she must have.

Further, according to the support structure of the regress 20 according to the present invention, the support of the regress 20 can be made extremely compact while maintaining its sufficient function. As a result, not only can the structure be of excellent durability, but also the overall weight for constructing the support structure can be reduced, and a vehicle having this type of regress 20 can be used. The cost of the seat 10 as a whole can be reduced. Therefore, the vehicle seat 10 having the regress 20 supported by this support structure has energy saving measures and durability measures.

[Brief description of drawings]

FIG. 1 is a perspective view of a vehicle seat that employs a regress support structure according to the present invention.

FIG. 2 is a partially enlarged side view showing a support structure for a regressor.

FIG. 3 is a partial plan view of a seat frame used in the support structure of the present invention.

FIG. 4 is a side view of the seat frame.

5 is a partially enlarged side view of the support bracket shown in FIG. 2 when viewed from the opposite side.

6 is a partial sectional view taken along line 6-6 of FIG.

[Explanation of symbols]

 10 Vehicle Seat 11 Cushion 12 Seat Frame 13 Seat Back 14 Fixed Bracket 20 Regression 21 Support Bracket 22 Support Arm 23 Front Roller 23a Roller Part 23b Flange Part 24 Winding Roller 24a Roller Part 24b Flange Part 25 Winding Spring 26 Stopper 27 Operation Handle 28 Spring storage

Claims (1)

[Scope of utility model registration request] 1. A structure for supporting a regress, which is arranged in front of a cushion of a vehicle seat, comprising: a support bracket attached to a front end of a seat frame supporting the cushion; and a plurality of rollers on the support bracket. A support arm slidably supported in the front-rear direction of the cushion, a regressing mechanism supported by a front end of the support arm and tilting within a predetermined range, and a tip supported by a roller of the support bracket so as to be freely wound. Is a winding spring connected to the rear end of the support arm, and a stopper provided on the support bracket for restricting the slide of the support arm.