JP2015193356A - headrest support - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent wobble/resonance generated on a stay bolt and a support, by employing a structural technique and devising to a conventional support, secure silence and comfort in a vehicle and achieve attenuation of wobble and oscillation due to self excited oscillation.SOLUTION: A support C in which a stay bolt is elastically supported and outside dimension of a body part becomes thicker from a lower side toward an upper side, namely a tapered shape, is provided on a bracket so that the support can be inserted and removed freely, and two-piece structure elastic piece is provided on a side surface of the body part 3, and the elastic piece has oscillation attenuation means in different directions. By inclination of a shell (main body), easiness of insertion and removal of the support into/from the bracket and improvement of compatibility with the bracket can be achieved.

Description

The present invention relates to a vehicle headrest support (hereinafter referred to as support).

In order to prevent backlash occurring between the support, the headrest stay (hereinafter referred to as a stay) and the bracket, the applicant has filed a number of applications (inventions). In the invention, a plurality are commercialized.

However, further backlash prevention is demanded from the recent demand from users and the social situation. In order to meet this demand, an application has already been filed. For example, Japanese Patent Application No. 2013-230848.

This application is an improvement of the prior application and an improvement of the following document (1).

Document (1) is disclosed in Japanese Patent Application Laid-Open No. 2012-218458. In the normal state, even if the spring constant is reduced to improve seat resonance, the spring constant that can suppress whiplash at the time of rear collision is described. An automobile headrest support device that can be increased is proposed. In the headrest support device for an automobile, the configuration is between the support and the bracket (headrest bracket), between the stay and the support of the stay insertion hole (headrest stay insertion hole), or between the stay and the bracket of the stay insertion hole, This is a structure in which a flexible member (spring, spring material, etc.) having a dilatant characteristic is disposed in at least one of the portions corresponding to the vertical end portion of the bracket and in the vehicle longitudinal direction portion. However, it is considered that the present invention is limited to preventing vibration of the headrest.

JP 2012-218458 A

At least in Reference (1), there are problems that occur due to tolerances between the stay, support, and bracket, ie, quietness in the vehicle, ensuring comfort, quietness, comfort, and self-excited by the resonance effect of the support. It is not considered sufficient for damping due to vibration.

In view of the above, the present invention achieves the effect of preventing rattling / resonance generated by the stay and the support by structural technology and ingenuity to the conventional support, thereby ensuring quietness and comfort in the vehicle. This is intended to reduce vibrations and vibrations due to self-excited vibration. Further, it is intended to facilitate the insertion / extraction (insertion and removal) from the bracket and to improve the compatibility with the bracket by inclining the support body (main body portion).

For this purpose, the present invention proposes claims 1 to 10 described later.

The invention according to claim 1 is a support in which the stay is elastically supported, and the outer dimension of the main body is tapered from the bottom to the top in order to increase the thickness. Since the bracket is provided so that it can be freely inserted and removed, a support having a structure in which a two-piece elastic piece is provided on the side surface of the main body, and vibration attenuation means in different directions is provided on the elastic piece, the body (main body) It is possible to achieve easy insertion / removal to the bracket (light load, ease of work such as assembly / replacement, or reduction of fatigue). In addition, there are features such as ensuring quietness and comfort in the vehicle, and preventing backlash and vibration damping due to self-excited vibration.

The invention according to claim 2 is a structure in which the elastic piece is provided with vibration attenuation means in different directions, and the first elastic piece located outside is a regular mountain shape formed by bulging the central portion toward the outside. Since the second elastic piece located on the inner side has an inverted chevron shape formed by bulging the center part toward the inner side, the support is characterized in that it conforms to the effect of claim 1. The effect can be expected, and the conventional support can be achieved based on the conventional technology and experience by applying structural techniques and ingenuity.

In the invention of claim 3, since the first and second elastic pieces are the support characterized by having a flat plate shape, the same effect as in claim 1 can be achieved.

In the invention of claim 4, the first and second elastic pieces are the support characterized in that the repulsive force of the first elastic piece> the repulsive force of the second elastic piece. The effect which surpasses item 1 is attained.

According to a fifth aspect of the invention, the first and second elastic pieces have a support characterized in that the relationship of the repulsive force of the first elastic piece <the repulsive force of the second elastic piece. The effect which surpasses Claim 1 is attained.

In the invention of claim 6, the first and second elastic pieces are the support characterized in that the repulsive force of the first elastic piece = the repulsive force of the second elastic piece. The effect of item 1 becomes possible.

The invention according to claim 7 is a support having a configuration in which one or several slipping elastic pieces are provided between the first elastic piece and the second elastic piece constituting the elastic piece. Therefore, the effect exceeding the said Claim 1 is attained.

The invention according to claim 8 is the support in which the passing elastic piece is formed in a thin band shape with respect to the first elastic piece and / or the second elastic piece. The effect exceeding 1 and the manufacture can be facilitated.

The invention of claim 9 surpasses claim 1 because the support is characterized in that the first elastic piece and / or the second elastic piece has a corrugated curved surface shape. The effect and further silence in the vehicle are possible.

The invention according to claim 10 is the support characterized in that the first elastic piece and / or the second elastic piece protrudes outside the tapered main body portion. The surpassing effect and the assembly work and / or the handling of the headrest can be facilitated.

An exploded scale perspective view of a structure including a seat, a support, an upper frame, a straight-shaped bracket, and a headrest. FIG. 1-1 is a perspective view of a main portion showing a tapered bracket substituted for the straight bracket of FIG. 1-1. Front view of the entire support showing the first embodiment (equipped with elastic pieces on the upper and lower sides in the running direction) Left side view of the entire support showing the first embodiment AA sectional view of FIG. Left side view of the entire support showing another example of the first embodiment Left side view of the entire support showing another example of the first embodiment Front view of the entire support showing the second embodiment Left side view of the entire support showing the second embodiment 3-1 sectional view of Fig. 3-1 Left side view of the entire support showing another example of the second embodiment Left side view of the entire support showing another example of the second embodiment The expanded sectional view of the principal part which showed combination example A-1 of the 1st elastic piece and the 2nd elastic piece of each Example (The structure by which the 1st elastic piece and the 2nd elastic piece are integrally molded by the main-body part. "Each embodiment of BD is the same") The expanded sectional view of the principal part which showed combination example A-2-1 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example A-2-2 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 4-2-1) Opposite slope) The expanded sectional view of the principal part which showed combination example A-2-3 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example A-2-4 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 4-2-3. Opposite slope) The expanded sectional view of the principal part which showed combination example A-2-5 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example A-2-6 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 4-2-5) Opposite slope) The expanded sectional view of the principal part which showed combination example A-2-7 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example A-2-8 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 4-2-7) Opposite slope) The expanded sectional view of the principal part which showed combination example A-2-9 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example A-2-10 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example A-2-11 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 4-2-10) Opposite slope) The expanded sectional view of the principal part which showed combination example A-2-12 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a center delivery elastic piece is two types) The expanded sectional view of the principal part which showed combination example A-2-13 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (upper and lower delivery elastic pieces are two types) The expanded sectional view of the principal part which showed combination example A-2-14 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a middle delivery elastic piece is waveform shape) Combination example A-2-15 of the first elastic piece and the second elastic piece of each embodiment, and the passing elastic piece A-2-15 enlarged cross-sectional view (upper and lower passing elastic pieces are corrugated) In the embodiment of FIG. 4-1, an enlarged cross-sectional view in which the first elastic piece and the second elastic piece are inserted into the opening of the main body (the same applies to the embodiments of B to D). The expanded sectional view of the principal part which showed combination example B-1 of the 1st elastic piece of each Example, and the 2nd elastic piece The expanded sectional view of the principal part which showed combination example B-2-1 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example B-2-2 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 5-2-1) Opposite slope) The expanded sectional view of the principal part which showed combination example B-2-3 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example B-2-4 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 5-2-3 Opposite slope) The expanded sectional view of the principal part which showed combination example B-2-5 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example B-2-6 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 5-2-5) Opposite slope) The expanded sectional view of the principal part which showed combination example B-2-7 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example B-2-8 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 5-2-7) Opposite slope) The expanded sectional view of the principal part which showed combination example B-2-9 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example B-2-10 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example B-2-11 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 5-2-10) Opposite slope) The expanded sectional view of the principal part which showed combination example B-2-12 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a center delivery elastic piece is two types) The expanded sectional view of the principal part which showed combination example B-2-13 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (upper and lower delivery elastic pieces are two types) The expanded sectional view of the principal part which showed combination example B-2-14 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a middle delivery elastic piece is waveform shape) The expanded sectional view of the principal part which showed combination example B-2-15 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (upper and lower delivery elastic pieces are waveform shape) The expanded sectional view of the principal part which showed combination example C-1 of the 1st elastic piece of each Example, and the 2nd elastic piece The expanded sectional view of the principal part which showed the combination example C-2-1 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed the combination example C-2-2 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 6-2-1. Opposite slope) The expanded sectional view of the principal part which showed the example C-2-3 of the combination with the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed the combination example C-2-4 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 6-2-3 Opposite slope) The expanded sectional view of the principal part which showed the example C-2-5 of the combination of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example C-2-6 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 6-2-5) Opposite slope) The expanded sectional view of the principal part which showed the example C-2-7 of the combination with the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed the combination example C-2-8 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 6-2-7) Opposite slope) The expanded sectional view of the principal part which showed the example C-2-9 of the combination with the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed the example C-2-10 of the combination of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example C-2-11 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 6-2-10) Opposite slope) The expanded sectional view of the principal part which showed combination example C-2-12 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a center delivery elastic piece is two types) The expanded sectional view of the principal part which showed combination example C-2-13 of the 1st elastic piece of each Example, the 2nd elastic piece, and the delivery elastic piece (upper and lower delivery elastic pieces are two types) The expanded sectional view of the principal part which showed combination example C-2-14 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a middle delivery elastic piece is waveform shape) The expanded sectional view of the principal part which showed combination example C-2-15 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (upper and lower delivery elastic pieces are waveform shape) The expanded sectional view of the principal part which showed combination example D-1 of the 1st elastic piece and 2nd elastic piece of each Example The expanded sectional view of the principal part which showed combination example D-2-1 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example D-2-2 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 7-2-1) Opposite slope) The expanded sectional view of the principal part which showed combination example D-2-3 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example D-2-4 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 7-2-3. Opposite slope) The expanded sectional view of the principal part which showed combination example D-2-5 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example D-2-6 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 7-2-5 Opposite slope) The expanded sectional view of the principal part which showed combination example D-2-7 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example D-2-8 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 7-2-7) Opposite slope) The expanded sectional view of the principal part which showed combination example D-2-9 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example D-2-10 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece The expanded sectional view of the principal part which showed combination example D-2-11 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a delivery elastic piece is FIG. 7-2-10) Opposite slope) The expanded sectional view of the principal part which showed combination example D-2-12 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a center delivery elastic piece is two types) The expanded sectional view of the principal part which showed combination example D-2-13 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (upper and lower delivery elastic pieces are two types) The expanded sectional view of the principal part which showed combination example D-2-14 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (a middle delivery elastic piece is a waveform shape) The expanded sectional view of the principal part which showed combination example D-2-15 of the 1st elastic piece of each Example, the 2nd elastic piece, and a delivery elastic piece (upper and lower delivery elastic pieces are waveform shape) 5-2-4 or enlarged sectional view of another example of the embodiment of the integral molding shown in FIG. 5-2-5 In FIG. 8A, the vibration damping means composed of the first and second elastic pieces and the passing elastic piece is formed of a separate material from the main body and made of a different material, and is provided so as to be attachable to the main body. Overall left side view Sectional drawing in which the main part of Fig.8-2 is further enlarged Front view of the partial defect in Fig. 8-2 FIG. 8-2 is a front view further enlarging the main part showing an example of the vibration damping means of FIG. 8 (enlarged front view that can be attached to the main body using a trapezoidal insertion piece), with a gap in the whole (all periphery) Figure with FIG. 8B is an enlarged front view showing an example of the vibration damping means of FIG. FIG. 8-2 is a front view (an enlarged front view provided so as to be freely attachable to the main body using a rectangular insertion piece) in which a main portion showing another example of the vibration damping means of FIG. 8-2 is further enlarged. Figure FIG. 8B is an enlarged front view showing an example of the vibration damping means of FIG. The vibration damping means consisting of the first and second elastic pieces and the passing elastic piece is made of a separate material from the main body and made of a different material, and can be attached to the main body using a rectangular plug. Left side view 9-1 front view of essential parts of FIG. The vibration damping means consisting of the first and second elastic pieces and the passing elastic piece is made of a separate material from the main body and made of a different material, and can be attached to the main body using a trapezoidal insertion piece. Left side view Front view of Fig. 10-1 The figure of Example 1 which showed the cross-sectional shape of the 2nd elastic piece The figure of Example 2 which showed the cross-sectional shape of the 2nd elastic piece The figure of Example 3 which showed the cross-sectional shape of the 2nd elastic piece The figure of Example 4 which showed the cross-sectional shape of the 2nd elastic piece The figure of Example 5 which showed the cross-sectional shape of the 2nd elastic piece FIGS. 2A to 2D are diagrams showing each combination structure of the first and second elastic pieces and the passing elastic piece, and A to D are characters of the type of structure (common configuration); 1-No. 16 indicates the number of the equipped state.

In FIG. 1, A is a seat, B is a bracket provided on the upper frame, C is a support, D is a headrest, and E is a stay.

In the support C, the configuration common to the embodiments will be described. In FIG. 2B, an opening 100 into which an operation button (not shown) is inserted is provided on the head 1 provided from the front side to the back side. For example, a main body formed into a square taper (FIG. 2-1) by increasing (increasing) the diameter in order from the neck 2 connected to the bottom of the head 1 toward the upper C2 from the lower C1. 3 (the diameter of the lower C <b> 1 is smaller than the diameter of the upper C <b> 2) and the skirt portion 4 that is deflated, and has a through-hole 5 that penetrates from the neck portion 2 to the skirt portion 4 through the main body portion 3. The taper shape of the main body 3 is a structure that is formed with a thin thickness, facilitating manufacture, imparting elasticity, facilitating die-cutting, reducing weight, and facilitating insertion into the bracket B, Simplify and speed up. In the bracket B of a straight shape (FIG. 1-1) that conceals substantially the entire support C (except for the body 3 of the support C and below the hook 6), the bracket C is inserted when inserted into the bracket B or as illustrated. Is completed, a gap (not shown) is formed between the inner wall B1 of the bracket B and the outer peripheral surface C3 of the support C (the outer wall 300 “side surface” of the main body 3).

The support C includes at least a mountain-shaped first elastic piece 10 (first spring) facing the outside of the main body 3 and a string-shaped second elastic piece 11 (second spring) facing the inside. The provided vibration attenuation means is provided. Hereinafter, preferable examples will be described in order.

The structure shown in FIGS. 4-1 to 4-2-15 (A-1 to A-2-15) is provided in the openings 301 and 302 in the upper stage 3a and the lower stage 3b of the side surface of the main body 3 of the support C, respectively. The first elastic piece 10 (spring band body) and the second elastic piece 11 (spring band body) are provided (the first elastic piece 10 and the second elastic piece 11 are integrally formed in the main body portion. (Each embodiment of B to D is also the same and will be omitted)), the outer direction 3-1 of the main body 3 is the first elastic piece 10, and the inner direction 3-2 is the second elastic piece 11. is there. In this example A, the first elastic piece 10 and the second elastic body 11 have the branch base end portion 10-1 as a straight line with the substantially inner line 5a of the through hole 5 of the support C as a base point, and the first elastic piece is evenly distributed. If the piece 10 and the second elastic piece 11 are branched (equally branched) and the thickness is such that the first elastic piece 10 = the second elastic body 1, an equivalent elastic carrying force (balance force) is applied. On the other hand, if the thickness is the relationship of the first elastic piece 10 ≧ the second elastic body 1, it is an uneven elastic carrying force (unbalance force), and a load is applied to the first elastic piece 10. It is. The elastic bearing force can limit the vibration. Hereinafter, although each Example is described, it is a preferable example and is not limited. In addition, the 1st elastic piece 10 and the 2nd elastic piece 11 are the structures inserted and supported by the opening 301,302 of the main-body part 3, respectively (FIGS. 8-2-1 to 8-5-2, Same as FIG. 9-1, FIG. 9-2, etc.).

In FIG. 4A, both branch portions 10a of the first elastic piece 10 swell from the inner line 5a, both hem portions 10b become an uphill surface, and the top portion 10c protrudes in a triangular shape. It is. On the other hand, in the second elastic piece 11, both branch portions 11a swell from the inner line 5a, both chord portions 11b have an uneven bowl shape, and the center portion 11c has a protruding shape having a large arc shape in the vertical direction. The string shape. And the restoring property of the triangular protrusion of the top portion 10c and the arc-shaped protrusion of the central portion 11c, and the recovering property of the triangular protrusion of the first elastic piece 10 and the string shape of the second elastic piece 11 Can be secured. Accordingly, the first elastic piece 10 is pressed inward by the bracket B, but the tension (X) between the bracket B and the support C (not shown) can be secured due to the recoverability of the first elastic piece 10. Moreover, although the 2nd elastic piece 11 is pressed outside by the stay E, the tension | tensile_strength (Y) of the support C and the stay E (not shown) can be ensured by the restoring property of the 2nd elastic piece 11. This tension (X) and tension (Y) can prevent backlash.

In FIG. 4-2-1 to FIG. 4-2-15, it is provided between the first elastic piece 10 and the openings 301 a, 301 b, 302 a, 302 b and between the first elastic piece 10 and the second elastic piece 11. The transfer elastic piece 12 (spring band), or although not shown, between the first elastic piece 10 and the transfer elastic piece 12 and any one of the transfer elastic pieces 12 and other transfer elastic pieces 12 Further, backlash elastic pieces 12 provided between the first and second elastic pieces 10 and 11 are supplemented by the elastic piece 12 provided between the first and second elastic pieces. In addition, this elastic piece 12 has a fuse design and has a role as a show shot, which can ensure the usefulness and the convenience of work.

FIG. 4-2-1 shows the difference in elasticity between the first elastic piece 10 and the openings 301 a, 301 b, 302 a, 302 b and between the first elastic piece 10 and the second elastic piece 11. In the structure of the piece 12, the center passing elastic piece 12 is inclined above the top portion 10 c of the first elastic piece 10 and below the center portion 11 c of the second elastic piece 11. The transfer elastic piece 12 complements the restoring properties of the first elastic piece 10 and the second elastic piece 11 (the center-inclined transfer elastic piece 12 "the upper and lower transfer elastic pieces 12 are the same") The upper side of the elastic piece 10 and the lower side of the second elastic piece 11 are pulled as shown in FIG. 10 and the second elastic piece 11 are quickly restored by the self-restoring force (that is, vibration attenuation means). It is a full-featured structure with vibration attenuation means.

4-2-2, the center (center) passing elastic piece 12 is inclined such that it is below the top portion 10 c of the first elastic piece 10 and above the center portion 11 c of the second elastic piece 11. is there. Others are substantially the same as in Fig. 4-2-1.

FIG. 4-2-3 shows that the upper and lower passing elastic pieces 12 are further provided between the first elastic piece 10 and the branch base end portion 10-1, in the middle passing elastic piece 12, and further, This is a structure in which auxiliary transfer elastic pieces 12 and 12 (spring band bodies) are provided between the upper and lower transfer elastic pieces 12 and 12 and the branch base end portion 10-1. Others substantially conform to the structure of FIG. 4-2-1.

FIG. 4-2-4 shows a structure in which the inclination of the center passing elastic piece 12 is opposite to that of FIG. 4-2-3. Others substantially conform to the structure of FIG. 4-2-1.

4-2-5, the upper and lower delivery elastic pieces 12 are arranged in an inclined manner between the first elastic piece 10 and the branch base end 10-1, and the middle delivery elastic piece 12 is The inclined shape is located above the top portion 10 c of the first elastic piece 10 and below the center portion 11 c of the second elastic piece 11. Others substantially conform to the structure of FIG. 4-2-3.

In FIG. 4-2-6, the center passing elastic piece 12 is inclined below the top portion 10 c of the first elastic piece 10 and above the center portion 11 c of the second elastic piece 11. Others are substantially the same as those in FIG.

FIG. 4-2-7 shows a structure in which the center elastic piece 12 shown in FIG. 4-2-3 is eliminated. Others substantially conform to the structure of FIG. 4-2-3.

FIG. 4-2-8 shows a structure in which the upper and lower delivery elastic pieces 12 are arranged in an inclined manner between the first elastic piece 10 and the branch base end portion 10-1. Others substantially conform to the structure of FIG. 4-2-5.

FIG. 4-2-9 shows a structure in which the upper and lower passing elastic pieces 12 are arranged in an inclined manner between the first elastic piece 10 and the openings 301a, 301b, 302a, 302b. Others substantially conform to the structure of FIG.

FIG. 4-2-10 shows an example in which the center elastic piece 12 is inclined between the upper side of the top 10c of the first elastic piece 10 and the lower side of the central part 11c of the second elastic piece 11. Structure. Others substantially conform to the above-described FIG. 4-1 (an example in which a central elastic piece 12 is provided).

FIG. 4-2-11 shows that a central passing elastic piece 12 is inclined between the lower side of the top part 10 c of the first elastic piece 10 and the upper side of the central part 11 c of the second elastic piece 11. Structure. Others substantially conform to FIG. 4-2-10 described above.

FIG. 4-12 shows a configuration in which two center elastic members 12 are provided between the upper side of the top portion 10c of the first elastic piece 10 and the lower side of the central portion 11c of the second elastic piece 11. Thus, the structure is arranged in an inclined manner. Others substantially conform to FIG. 4-2-1 described above.

FIG. 4-2-13 shows a structure in which the upper and lower transfer elastic pieces 12 are arranged in an inclined manner in the form of two sheets between the first elastic piece 10 and the openings 301a, 301b, 302a, 302b. . Others substantially conform to the above-described FIG.

FIG. 4-2-14 shows an inclined structure in which the center elastic piece 12 is above the top part 10c of the first elastic piece 10 and below the center part 11c of the second elastic piece 11. The passing piece 13 has a concave and convex shape. Others substantially conform to FIG. 4-2-1 described above.

In FIG. 4-15, the upper and lower passing elastic pieces 12 between the first elastic piece 10 and the openings 301 and 302 can also have a concave and convex shape. Others substantially conform to FIG. 4-2-9 described above.

FIG. 4-2-16 is an example in which the first and second elastic pieces 10, 11 and the openings 301a, 301b, 302a, 302b are inserted and locked, respectively, and is in accordance with the embodiment of FIG. 4-2-1.

5-1 to 5-2-15 (B-1 to B-2-15), the configuration of the first elastic piece 10 and the second elastic piece 11 provided on the support C is as shown in FIG. -1 to Fig. 4-2-14. In this example B, the first elastic piece 10 and the second elastic body 11 have the branch base end portion 10-1 bent inward with the substantially inner line 5a of the through hole 5 of the support C as a base point, and the first elastic piece. Even if 10 is a left-side branch and the thickness is the relationship of the first elastic piece 10 = the second elastic body 1, the load on the second elastic piece 11 is caused by an unequal elastic carrying force (balance force). It takes. On the other hand, if the thickness is the relationship of the first elastic piece 10 ≧ the second elastic body 1, the elastic carrying force (unbalance force) is substantially equal, and is equal to the first elastic piece 10 and the second elastic body 11. It is characterized by a heavy burden. The elastic bearing force can limit the vibration. Hereinafter, each Example is a preferable example, and is not limited.

The embodiments shown in FIGS. 5-1 to 5-2-15 are the same as the embodiments shown in FIGS. 4-1 to 4-2-15 and are omitted.

6-1 to 6-2-15 (C-1 to C-2-15), the configuration of the first elastic piece 10 and the second elastic piece 11 provided on the support C is as shown in FIG. -1 to Fig. 4-2-14. In this C example, the first elastic piece 10 and the second elastic body 11 have the branch base end portion 10-1 slightly bent outwardly from the substantially inner line 5a of the through hole 5 of the support C, and the second Even if the elastic piece 11 is branched to the right and the thickness is the relationship of the first elastic piece 10 = the second elastic body 1, the elastic piece 11 has an unequal elastic carrying force (unbalance force) to the second elastic piece 11. Burden. On the other hand, if the thickness is the relationship of the first elastic piece 10 ≧ the second elastic body 1, the first elastic piece 10 and the second elastic piece 11 have an equal load on the substantially equal elastic carrying force (balance force). It is characterized by hanging. Hereinafter, each Example is a preferable example, and is not limited.

The embodiments shown in FIGS. 6-1 to 6-2-15 are the same as the embodiments shown in FIGS. 4-1 to 4-2-15 and are omitted.

In the structure shown in FIGS. 7-1 to 7-2-15 (D-1 to D-2-15), the arrangement form of the first elastic pieces 10 provided on the support C is the same as that in each of the above-described embodiments. Although it applies to FIGS. 4-1 to FIGS. 4-2-14, the arrangement | positioning form of the 2nd elastic piece 11 is a form contrary to the 1st elastic piece 10 substantially. In this example D, the first elastic piece 10 and the second elastic body 11 have the branch base end portion 10-1 as a straight line with the substantially inner line 5a of the through hole 5 of the support C as a base point, and the first elastic piece is evenly distributed. If the piece 10 and the second elastic piece 11 are branched (equally branched) and the thickness is such that the first elastic piece 10 = the second elastic body 1, an equivalent elastic carrying force (balance force) is applied. On the other hand, if the thickness is the relationship of the first elastic piece 10 ≧ the second elastic body 1, it is an uneven elastic carrying force (unbalance force), and a load is applied to the first elastic piece 10. It is. The elastic bearing force can limit the vibration. Hereinafter, although each Example is described, it is a preferable example and is not limited.

The embodiments shown in FIGS. 7-1 to 7-2-15 are the same as the embodiments shown in FIGS. 4-1 to 4-2-15 and are omitted.

8-1 to 8-5, the trapezoidal insertion piece Z <b> 1 or the rectangular insertion piece Z <b> 2 of the vibration damping means Z composed of the first and second elastic pieces 10 and 11 and the passing elastic piece 13 is used. The vibration attenuating means Z has a higher resistance than that of the main body 3 such as a metal or a hard resin, and is provided in the fitting holes 301a and 302a of the openings 301 and 302 provided in the portion 3 in a detachable manner. Consists of. A method Q1 (with a gap) for forming the gaps H1, H2 between the insertion pieces Z1, Z2 of the vibration damping means Z and the holes 301a, 302a and a method Q2 (for the gap) without forming the gaps H1, H2 None).

The method of Q1 can cope with a large load on the vibration damping means Z, has a large repulsive force (a large elastic force), and has a large deflection allowance. That is, it is tough. On the other hand, the method of Q2 is slightly inferior to the load on the vibration damping means Z, the repulsive force (elastic force), and the bending allowance as compared with the method of Q1, but easy to mount. And superior durability.

9A to 10B, the first elastic body 10 of the vibration damping means Z is a flat ring, and the second elastic piece 11 is in the center of the flat ring of the first elastic body 10. It is a structure provided as a difference. Others conform to the structure and effects of FIGS. 8-1 to 8-5 described above.

11-1 to 11-5 show the relationship between the second elastic piece 11 and the stay E, and FIG. 11-1 shows a curved shape in the cross section, and the elasticity caused by the bending. It is a structure that considers familiarity with the force and surface contact with the stay E. FIG. 11B is a plate-like shape in cross section, and has a structure that takes into account the elastic force due to line contact and the line contact with the stay E, and facilitates insertion, lightening work, and the like. FIG. 11C is a substantially hat-shaped cap in a cross section, and is a structure that takes into account familiarity with a structure that takes into account the elastic force due to surface contact and the stay E and surface contact. FIG. 11-4 is a reversely curved plate shape in the cross section, and is a structure in which familiarity is taken into consideration by the elastic force due to the reverse curve and the substantially line contact with the stay E. FIG. 11-5 is a reverse saddle-cap shape in the cross section, and has a structure that takes into account the elastic force caused by point contact and the stay E and point contact, and facilitates insertion, lightening work, and the like. Each is an example and is not limited.

Each structure described above is a description of a preferred example of the present invention. Therefore, the present invention is not limited to the above-described embodiments, and structures that change a part of the configuration within the scope of the invention, structures that can achieve the same features and effects, and the like are within the scope of the present invention. It is.

DESCRIPTION OF SYMBOLS 1 Head part 100 Opening part 2 Neck part 200 Level difference 201 Opening 201a Wall surface 3 Main body part 3a Upper stage 3b Lower stage 3c Front 3d Rear 3e Right side 3f Left side 300 Outer wall 301a, 301b Opening 302a, 302b Opening 3-1 Outer direction 3-2 Inner direction 5 Through hole 5a Approximate extension 6 Hook 10 First elastic piece 10a Branching part 10b Bottom part 10c Top part 10-1 Branching base end part 11 Second elastic piece 11a Branching part 11b String part 11c Center part 12 Crossing elastic piece A Seat B Bracket B1 Inner wall B2 Upper side B3 Opening B4 Restriction part BB Bracket BB4 Restriction part BB5 Swelling part C Support C1 Lower C2 Upper C3 Outer surface D Headrest E Stay E1 Outer surface Z Vibration damping means Z1 Insertion piece H Gap Q1 Method of forming the gaps H1 and H2 (with gaps) Q2 Method of not forming the gaps H1 and H2 (no gaps)

Claims (10)

In the headrest support that supports the headrest stay elastically, and the outer dimensions of the main body are tapered from the bottom to the top in order, the headrest support is formed into a square bracket. A headrest support having a structure in which a two-piece elastic piece is provided on a side surface of the main body portion and vibration attenuating means in different directions is provided on the side surface of the main body portion in order to be provided detachably and elastically supported. . The elastic piece has a structure in which vibration attenuating means in different directions is provided, and the first elastic piece located on the outer side has a regular mountain shape formed by bulging the central part toward the outer side, and the first elastic piece located on the inner side. 2. The headrest support according to claim 1, wherein the two elastic pieces have an inverted chevron shape formed by bulging the central portion toward the inside. The headrest support according to claim 2, wherein the first and second elastic pieces have a flat plate shape. 3. The headrest support according to claim 2, wherein the first and second elastic pieces have a relationship of a repulsive force of the first elastic piece> a repulsive force of the second elastic piece. 3. The headrest support according to claim 2, wherein the first and second elastic pieces have a relation of repulsive force of the first elastic piece <repulsive force of the second elastic piece. 3. The headrest support according to claim 2, wherein the first and second elastic pieces have a relationship of repulsive force of the first elastic piece = repulsive force of the second elastic piece. 2. The headrest support according to claim 1, wherein one or a plurality of passing elastic pieces are provided between the first elastic piece and the second elastic piece constituting the elastic piece. . The headrest support according to claim 4, wherein the passing elastic piece is configured to have a thin band shape with respect to the first elastic piece and / or the second elastic piece. 5. The headrest support according to claim 4, wherein the first elastic piece and / or the second elastic piece has a corrugated curved shape. The headrest support according to claim 4, wherein the first elastic piece and / or the second elastic piece protrudes outside the tapered main body.