JP4814548B2 - Bracket for headrest support - Google Patents

Description

  The present invention relates to a bracket for a headrest support, and relates to a bracket for a headrest support having an elastic function capable of reliably and firmly holding a resin headrest support.

  As is well known, since the vehicle is required to be quiet during running, this type of headrest metal bracket reliably supports the resin headrest support, prevents rattling during running, It is becoming an important factor to avoid the generation of sound. On the other hand, in recent years, it is considered an urgent need to achieve this kind of rattling prevention.

  In addition, the strength of the metal bracket for headrest support has been pointed out that it is difficult to avoid deformation (ensure the dimensional accuracy of the bracket) when welding to the metal frame embedded in the seat back, and various improvements have been pointed out. Has been done. However, it is unavoidable that the bracket dimensions are more or less distorted during welding, and there is a problem that the fitting state of the headrest support cannot be ensured (a fitting gap is generated). And if this fitting gap occurs, it becomes a problem, but even if this fitting gap occurs, if this bracket has an elastic function, the headrest support can be elastically supported It seems that there is no problem.

  The metal bracket for the headrest is required to have a predetermined strength. For example, when an impact is applied to the headrest support from the outside, this impact is stopped, and this impact is required in consideration of avoiding blind movement (blur) of the headrest support. Yes. However, the metal bracket is as its name suggests, and because it has a structure that does not have an elastic function against impacts, it is possible to prevent rattling and avoid rattling due to tolerances, degree of assembly, etc. It is considered difficult.

  In consideration of the above situations, if this type of metal bracket has an elastic function, it may be formed by the above-described tolerance, gap due to the degree of assembly, etc., or deformation due to welding. Even if a gap is generated, it can be treated for a predetermined period of time, so it is clear that no problem will occur for the time being.

  Further, as prior literatures in which a metal bracket is provided with an elastic function, there are "Headrest support device" (Literature (1)) of Japanese Utility Model No. 4-30930 and "Headrest support device of Japanese Utility Model No. 4-30931". (Reference (2)). This literature (1) and literature (2) are the structures which give an elastic mechanism indirectly to this bracket by interposing the engaging body which consists of a spring structure between a bracket and a headrest support. The engaging body is a separate part from the bracket.

No. 4-30930 Reality 4-30931

  The literatures (1) and (2) have a configuration in which an engaging body separate from the bracket is attached and an elastic function is given to the bracket. Therefore, there are problems in terms of production and economy, such as an increase in the number of parts, difficulty in automatic assembly, and high costs. In addition, there are also problems that require labor and much labor for the manufacture of parts and their procurement and / or management.

  In view of the above, the present invention effectively utilizes a bracket composed of a substantially cubic bracket body formed by bending a conventional flat metal material and abutting the free ends in the longitudinal direction. And it aims to give additional value. The bracket according to the present invention can be manufactured with an effective use of a machine for manufacturing the bracket and a slight improvement to the manufacturing machine.

  The invention of claim 1 makes effective use of a bracket composed of a substantially cubic bracket body formed by bending a conventional flat metal material and abutting the free ends in the longitudinal direction. And it aims at giving additional value (elastic function). The bracket according to the present invention can be manufactured with an effective use of a machine for manufacturing the bracket and a slight improvement to the manufacturing machine, and an object is to effectively use facilities, resources, etc. and to pursue economic efficiency. Another object of the invention of claim 1 is to eliminate the gap between the bracket and the headrest support, to prevent rattling and to avoid the generation of rattling noise.

Claim 1 is a bracket for a metal headrest support embedded in a seat back,
This bracket is formed by bending a flat metal material, forming a substantially cubic bracket body by abutting the free ends in the longitudinal direction, and providing a cut groove on the opposite side of the substantially cubic bracket body. In the bracket for the headrest support, which is configured to form an elastic piece by bending the processing portion inward with a processing means for the processing band portion by forming a shape processing band portion ,
The elastic piece uses the movement of the meat of the processing band portion to form the flexure, and forms the processing portion of the elastic piece wide, and the cut groove at the processing portion has a narrow shape. It is the bracket for headrest support characterized by these .

  A second aspect of the present invention provides a clinch structure for a bracket according to the first aspect.

Claim 2 is the bracket for the headrest support according to claim 1 ,
The butt is a bracket for headrest support constituted by butt due to unevenness of the clinch structure.

  The invention of claim 3 is to provide an optimal elastic piece when the elastic part is formed by bending the processed portion according to claim 1 inward.

Claim 3 is the bracket for the headrest support according to claim 1 ,
It said resilient piece is alone shape, a bracket for the headrest support to be inserted into the bracket alone shape and / or the headrest support which is configured to be spliced to the stay pressing the elastic piece of duplicate format.

  A fourth aspect of the invention is to provide an optimum elastic piece when forming the elastic piece by bending the processed portion according to claim 1 inward.

Claim 4 is the bracket for the headrest support according to claim 1 ,
It is a bracket for a headrest support in which the elastic piece is formed in a double shape and is attached to a stay-press elastic piece of a double head type of headrest support inserted into the bracket.

The invention of claim 1 is a metal headrest support bracket embedded in a seat back,
The bracket is formed by bending a flat metal material, forming a substantially cubic bracket body by abutting the free ends in the longitudinal direction, and providing a cut groove on the opposite side of the substantially cubic bracket body to form a cross shape In the bracket for the headrest support configured to form the elastic band by bending the processing part inward with the processing means for the processing band part, forming the band part ,
The elastic piece is characterized in that the movement of the meat in the processing band part is used to form a bend, the processing part of the elastic piece is formed wide, and the kerf in the processing part is made narrow. It is a bracket for a headrest support .

  Accordingly, the first aspect of the present invention effectively uses a bracket composed of a substantially cubic bracket body formed by bending a conventional flat metal material and abutting the free ends in the longitudinal direction. In addition, there is a feature that can give additional value (elastic function). The bracket according to the present invention can be manufactured with an effective use of the machine for manufacturing the bracket and a slight improvement to the manufacturing machine, and there is an actual advantage that an effective use of facilities and resources can be pursued and the economy can be pursued. In addition, the present invention has a feature that the gap between the bracket and the headrest support is eliminated, and rattling can be prevented and generation of rattling noise can be avoided.

The invention of claim 2 is the bracket for the headrest support according to claim 1 ,
It is a bracket for a headrest support in which a butt is constituted by a butt by a concavo-convex portion having a clinch structure.

  Therefore, claim 2 is characterized in that the clinch structure of the bracket according to claim 1 can be provided.

The invention of claim 3 is the bracket for the headrest support according to claim 1 ,
It is a bracket for a headrest support in which the elastic piece has a single shape and is configured to be in contact with the single shape of the headrest support inserted into the bracket and / or the double-type stay pressing elastic piece.

  Therefore, the third aspect has a feature that an optimal elastic piece can be provided when the elastic part is formed by bending the processing portion according to the first aspect inward.

The invention of claim 4 is the bracket for the headrest support according to claim 1 ,
It is a bracket for a headrest support having a structure in which the elastic piece is formed in a double shape and is attached to a stay-pressing elastic piece of a double head type of headrest support inserted into the bracket.

  Accordingly, the fourth aspect has a feature that an optimal elastic piece can be provided when the elastic part is formed by bending the processing portion according to the first aspect inward.

  An example of the present invention will be described.

Referring to the drawings, FIG. 1 is an overall exploded perspective view illustrating the relationship between a frame embedded in a seat back, a bracket, and a headrest. FIGS. 2-1 to 4-3 show the first embodiment, FIG. 2-1 is a side view showing a state before the bracket is processed, and FIG. 2-2 is a view of FIG. Fig. 3-1 is a side view for explaining the movement of meat during the processing of the bracket, Fig. 3-2 is a cross-sectional view of the main part of Fig. 3-1, and Fig. 4-1 is the processing of the bracket FIG. 4-2 is a cross-sectional view of the main part of FIG. 4-1, and FIG. 4-3 is a vertical cross-sectional view of the main part of FIG. 4-1. Next, FIGS. 5-1 to 6-3 show a second embodiment, FIG. 5-1 is a side view showing a state before processing of the bracket, and FIG. 5-2 is a view of FIG. FIG. 6-1 is a side view illustrating the movement of meat during the processing of the bracket, FIG. 6-2 is a cross-sectional view of the main part of FIG. 6-1, and FIG. FIG. 7-2 is a cross-sectional view of the main part of FIG. 7-1, and FIG. 7-3 is a vertical cross-sectional view of the main part of FIG. FIG. 8 is a schematic sectional view for explaining the relationship between the bracket and the headrest support and / or headrest stay in the first embodiment, and FIG. 9 shows the bracket, the headrest support and / or the headrest stay in the second embodiment. It is a cross-sectional schematic diagram explaining the relationship.

  First, the first embodiment shown in FIGS. 2-1 to 4-3 will be described. In this example, a flat (not shown) metal material is bent and formed at the free end X1 in the longitudinal direction X thereof. Forming the concavo-convex portions X2 and X3, abutting the concavo-convex portions X2 and X3 to form a substantially cubic bracket body 1, and processing means intended to move the meat at the butt end 2 of the substantially cubic bracket body 1 It can be done. One or several cut grooves 3 are formed on the opposite side surface 100 or 101 of the substantially cubic bracket body 1 to form one or several cross-shaped working band portions 5. By a processing means (not shown) using pressing by a press or the like, the processed portion 500 is bent inward 501 to form a single-type elastic piece 6. The state of this processing is indicated by the arrow (A) in FIG. 3-1, and the bending direction in FIG. 3-2 by the arrow (B).

  The relationship between the first embodiment and the headrest support D will be described with reference to the example shown in FIG. 8. The use state will be described below. The upper and lower body portions D1 and D2 of the headrest support D are connected to the upper and lower inner surfaces 102 and 103 of the bracket body 1. Is attached. The headrest support D is supported in the bracket body 1 by this attachment. In this supported state, the elastic piece 6 of the bracket body 1 is attached to the convex portions D3-1 and D4-1 provided on the stay pressing elastic pieces D3 and D4 of the headrest support D from the direction of the arrow (c). When the headrest stay E is inserted into the headrest support D in this state, the headrest stay E is pressed in the direction of the arrow (d), so that the arrows (c) and (d) Due to the repulsive force, there is almost no backlash between the bracket body 1 and the headrest support D, and there is a feature that it is possible to avoid the generation of rattling noise and / or other adverse effects caused by the backlash. In addition, there are practical benefits that can contribute to avoiding harmful effects due to tolerances and facilitating assembly.

  First, the second embodiment of FIGS. 5-1 to 7-3 will be described. In this example as well, the substantially cubic bracket body 1 is formed in the same manner as the first embodiment. The other configurations are basically the same. One or several cut grooves 3 are formed on the opposite side surface 100 or 101 of the substantially cubic bracket body 1 to form one or several cross-shaped working band portions 5. By a processing means (not shown) using pressing by a press or the like, the processing portion 500 is bent inward 501 to form the double-type elastic pieces 6 and 6 (referred to as 6). The state of this processing is indicated by an arrow (A) in FIG. 6-1, and the direction of bending by an arrow (B) in FIG. 6-2.

  The relationship between the second embodiment and the headrest support D will be described with reference to the example shown in FIG. 9. The use state will be described below. The upper and lower body portions D1 and D2 of the headrest support D include 103 is attached. The headrest support D is supported in the bracket body 1 by this attachment. In this supported state, the elastic piece 6 of the bracket body 1 is attached to the two recesses D3-2 and D4-2 provided on the stay pressing elastic pieces D3 and D4 of the headrest support D from the direction of the arrow (c). The When the headrest stay E is inserted into the headrest support D in this state, the headrest stay E is pressed in the direction of the arrow (d), so that the arrows (c) and (d) The repulsive force eliminates rattling between the bracket body 1 and the headrest support D and / or the generation of rattling noise, and can also reliably avoid other adverse effects caused by the rattling. In addition, there is an actual benefit that can sufficiently contribute to avoiding harmful effects due to tolerance and facilitating assembly.

  A in the figure indicates a vehicle seat.

FIG. 1 is an overall exploded perspective view illustrating the relationship between a frame embedded in a seat back, a bracket, and a headrest. Fig. 2-1 is a side view of the bracket before processing 2-2 is a cross-sectional view of the main part of FIG. Fig. 3-1 is a side view explaining the movement of meat during bracket processing 3-2 is a cross-sectional view of the main part of FIG. 3-1. 4-1 is a side view showing the state after processing the bracket 4-2 is a cross-sectional view of the main part of FIG. 4-3 is a longitudinal sectional view of the main part of FIG. Fig. 5-1 is a side view of the bracket before processing 5-2 is a cross-sectional view of the main part of FIG. Fig. 6-1 is a side view explaining the movement of the meat when processing the bracket 6-2 is a cross-sectional view of the main part of FIG. FIG. 7-1 is a side view showing a state after processing of the bracket. 7-2 is a cross-sectional view of the main part of FIG. 7-3 is a longitudinal sectional view of the main part of FIG. FIG. 8 is a schematic cross-sectional view illustrating the relationship between the bracket and the headrest support and / or the headrest stay in the first embodiment. FIG. 9 is a schematic cross-sectional view illustrating the relationship between the bracket and the headrest support and / or headrest stay in the second embodiment.

DESCRIPTION OF SYMBOLS 1 Bracket main body 100 Side surface 101 Side surface 102 Upper inner surface 103 Lower inner surface 2 Butting end part 3 Groove 5 Processed belt part 500 Processed part 501 Inner 6 Elastic piece A Sheet B Frame C Seat back D Headrest support D1 Upper main body part D2 Lower Side body part D3 Stay holding elastic piece D3-1 Convex part D3-2 Concave part D4 Stay pressing elastic piece D4-1 Convex part D4-2 Concave part E Headrest stay F Headrest X Longitudinal direction X1 Free end X2 Concave part X3 Convex part

Claims (4)

It is a bracket for metal headrest support embedded in the seat back,
This bracket is formed by bending a flat metal material, forming a substantially cubic bracket body by abutting the free ends in the longitudinal direction, and providing a cut groove on the opposite side of the substantially cubic bracket body. In the bracket for the headrest support, which is configured to form an elastic piece by bending the processing portion inward with a processing means for the processing band portion by forming a shape processing band portion ,
The elastic piece uses the movement of the meat of the processing band portion to form the flexure, and forms the processing portion of the elastic piece wide, and the cut groove at the processing portion has a narrow shape. Bracket for headrest support, characterized by
The bracket for the headrest support according to claim 1 ,
The butt of the bracket for the headrest support constituted by butt due to unevenness of the clinch structure.
The bracket for the headrest support according to claim 1 ,
A bracket for a headrest support in which the elastic piece has a single shape and is configured to abut on a single shape of the headrest support inserted into the bracket and / or a double-type stay presser elastic piece.
The bracket for the headrest support according to claim 1 ,
It said elastic piece and duplicate the shape, the bracket for the headrest support and configured to bears against the stay pressing the elastic piece of duplicate form of the headrest support to be inserted into the bracket.

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