JP3653538B2 - Screw mounting structure of mounted body and screwing method of mounted body - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, the mounted body is placed on one side of the mounting base member, and the screw member is screwed into the mounted body from the other side of the mounting base member, and the mounted body is screwed and fixed to the mounting base member. The present invention relates to a screwing structure of a mounted body and a screwing method of the mounted body applied to the above.
[0002]
[Prior art]
As a specific example of the screwing structure, as shown in FIG. 6, when the armrest A, which is provided so as to be freely inserted into and retracted from the seat back B of the rear seat, is tilted forward by the rotation guide shaft S1, as shown in FIG. It can be exemplified that the fixing shaft S2 for receiving and supporting the armrest A is held in a horizontal state by receiving (not shown) from the lower side and screwing.
[0003]
As shown in FIG. 7, the fixed shaft S2 is screwed with brackets C1 and C2 protruding from the pipe frames P1 and P2 of the seat back B as mounting base members. The screw member is bracket C1
A bolt T that is screwed from the outside of the bracket C1 is used at the shaft end of the fixed shaft S2 that is placed inside the bracket C1. In order to increase the tightening torque and prevent loosening of the bolt T, a resin O-ring member (not shown) is interposed on the axis to be fastened and fixed.
[0004]
The armrest frame F including the guide shaft S1 and the fixed shaft S2 is assembled with a cushion pad (not shown) as shown in FIG. It is assembled to. The guide shaft S1
, One end side of the fixed shaft S2 protrudes outward from the main body of the armrest A, and the other end side is positioned and assembled in the main body of the armrest A. This structure is adopted for the convenience of assembling the armrest A to the seat back B. That is, when the armrest A is attached to the seat back B, as shown in FIG.
, The protruding shaft side of the fixed shaft S2 is fitted and supported by the bearing hole of the bracket C2 on one side, the armrest body is fitted between the brackets C1 and C2, and the fixed shaft S2 is located in the body of the armrest A.
This is because it is necessary to screw the shaft end side to the bracket C1.
[0005]
[Problems to be solved by the invention]
The present invention is a screwing structure in which a resin ring member is interposed, and it is possible to further increase the screwing torque to prevent the screw member from being loosened more securely. In addition, the screw is provided with a metal washer on the axis. It is a main object of the present invention to provide a screwing structure for a body to be mounted and a method for screwing a body to be mounted that can improve the ease of work of screwing a member.
[0006]
[Means for Solving the Problems]
In the screwed structure of the mounted body according to claim 1 of the present invention, the mounted body is disposed on one side of the mounting base member provided with the opening for insertion of the screw member on the plate surface, A metal washer is provided on the axis from the opening of the mounting base member, the screw member is screwed into the screw hole of the mounted body from the other side, and the mounted body is mounted by interposing a resin ring member. In the screwing structure of the mounted body that is screwed to the base member,
The ring member includes a boss member that protrudes from the opening of the mounting base member and is fitted into and fixed to the hole of the opening, and a washer member that is positioned on the axis of the screw member. The metal washer member is pre-equipped with a metal washer on the axis of the screw member to stop the washer, and the tip of the boss member is pressed against the washer member by screwing in the screw member. It is comprised by integrating.
[0007]
In the screwed structure of the mounted body according to claim 2 of the present invention, the flat washer is located on the resin washer side, the spring washer is located on the bolt head side, and the metal washer is provided on the axis of the screw member. It is constituted by.
[0008]
In the screwed structure of the mounted body according to claim 3 of the present invention, the structure is configured by including a resin boss member having a collar portion for directly placing and placing the mounted body.
[0009]
In the screwed structure of the mounted body according to claim 4 of the present invention, it is configured by including a resin washer member having a recess for receiving the tip side of the boss portion.
[0010]
In the method for screwing the mounted body according to claim 5 of the present invention, the mounting body is disposed on one side of the mounting base member in which the opening for inserting the screw member is provided on the plate surface. Screw the screw member equipped with a metal washer on the axis from the opening of the mounting base member into the screw hole of the mounting body from the other side, and mount the mounting body by interposing the resin ring member. In the screwing method of the mounted body to be screwed to the base member,
As the ring member, a boss member that protrudes from the opening of the mounting base member and is fitted and fixed in the hole of the opening, and a washer member positioned on the axis of the screw member are used.
A metal washer is pre-equipped on the axis of the screw member, and a resin washer member is pre-equipped for the washer stop, and then the screw member is passed through the opening of the mounting base member to which the boss member is fixed. Is screwed into the screw hole of the mounted body, and the tip end side of the boss member is brought into pressure contact with the washer member to be integrated with each other.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
In the following, referring to FIGS. 1 to 5, FIG. 1 shows the same screwing structure that is applied when bolting one end side of the fixed shaft in the armrest mounting structure described with reference to FIGS. It shows as one embodiment. In this embodiment, the mounted body is the fixed shaft 1, the mounting base member is the bracket 2, and the screw member is the bolt 3. Further, the resin ring member is configured by interposing a boss member 4 and a washer member 5 which are molded from nylon or the like.
[0012]
The fixed shaft 1 is provided with a screw hole 1a into which a bolt 3 is screwed on a shaft end surface on one side. The bracket 2 is provided with an opening 2a in the plate surface into which the boss member 4 is fitted and the bolt 1 is inserted. As the bolt 3, there is used a bolt head 3a, a fitting shaft portion 3b such as a washer, and a screw shaft portion 3c. The bolt 3 is used by assembling a metal flat washer 6 and a spring washer 7 on the axis.
[0013]
As shown in FIGS. 2 and 3, the boss member 4 has a main body 4a formed in a cylindrical shape. An overhanging flange portion 4b is provided on the distal end side, and a collar portion 4c is provided on the proximal end side. The boss member 4 has the main body 4 a fitted into the opening 2 a of the bracket 2 until the collar portion 4 c is pressed against the plate surface of the bracket 2, and the overhanging flange portion 4 b extends outward from the opening 2 a of the bracket 2. By attaching it to the plate surface of the bracket 2 from the application side of the fixed shaft 1.
[0014]
In order to facilitate the attachment, the boss member 4 has one slit 4d extending from the outer periphery of the collar portion 4c to the inner periphery of the main body 4a and three planes having a substantially U shape on the inner periphery of the main body 4a. The notch 4e is provided so as to be positioned relative to the notch 4e. Further, the overhang flange portion 4b is formed thin by chamfering the hole edge 4f so as to promote the bending deformation accompanying the screw tightening.
[0015]
As shown in FIGS. 4 and 5, the washer member 5 has a main body 5 a formed in a disc shape. A flat circular recess 5b is provided on the plate surface, and a circular hole 5c into which the shaft 3b of the bolt 3 is fitted is provided at the center of the recess 5b. In addition, a substantially U-shaped notch 5d is provided at the hole edge of the circular hole 5c so that the shaft 3b of the bolt 3 can be easily fitted.
[0016]
When the fixed shaft 1 is screwed using these members, the boss member 4 extends from the mounting side of the fixed shaft 1 and presses the main body 4a into the opening 2a of the bracket 2 from the flange portion 4b in advance to the bracket 2 in advance. Prepare. This boss member 4 is press-fitted until the overhanging flange portion 4b protrudes from the opening 2a of the bracket 2 and the collar portion 4c comes into close contact with the plate surface of the bracket 4, and the body 4a is fitted into the hole of the opening 2a and fixed. To do. Further, the boss member 4 can be easily fitted and fixed in the hole 2a because the overhanging flange portion 4b is bent and deformed radially inward by the slit 4d and the notch 4e in accordance with the press-fitting.
[0017]
The bolt 3 is screwed by providing a flat washer 6 and a spring washer 7 as a metal washer on the axis. Among these metal washers, the spring washer 7 is provided on the bolt head 3a side, and the flat washer 6 is a resin washer member 5 so that the tightening force of the bolt 3 and the elastic force of the spring washer 7 can be applied equally to the other party. Install on the side. Further, the metal washers 6 and 7 are provided on the axis of the bolt 3, and the resin washer member 5 is fitted on the axis of the bolt 3 to stop the washer, so that the metal washers 6 and 7 are provided. By pressing, the bolt 3 is set in advance with the members 5, 6, and 7.
[0018]
As described above with reference to FIGS. 6 to 8, the fixed shaft 1 is inserted into the bracket on the seat back side as a component on the armrest side together with the guide shaft as described with reference to FIGS. Accordingly, the other shaft end side is arranged directly on the collar portion 4c of the boss member 4 and arranged. The collar portion 4c of the boss member 4 acts as a spacer in accordance with the arrangement of the fixed shaft 1, so that the armrest side can be temporarily fixed by each bracket and assembled to the seat back side.
[0019]
After the one shaft end side of the fixed shaft 1 is placed on the plate surface of the bracket 2, the bolt 3 is assembled at a relative position of the bracket 2 from the gap with the seat back side so that the fixed shaft 1 is screwed. Perform 3 tightening work. At this time, even in a place where it is difficult to work such as a gap on the seat back side, as described above, the resin washer member 5 and the metal washer members 6 and 7 are set in advance with the bolt 3 in the course of work. It can be prevented from falling off and the screwing operation can be easily performed.
[0020]
The bolt 3 is screwed from the inner diameter of the boss member 4 toward the screw hole 1 a of the fixed shaft 1. When the screw 3 is completely screwed in, the overhanging flange portion 4b of the boss member 4 fits into the recess 5b of the washer member 5 and is formed thin, so that it can be elastically bent and deformed so that they are tightly connected to each other. Can be integrated. Therefore, the bolt 3 exhibits a large tightening torque, and the elastic pressure of the spring washer 7 can be applied to the boss member 4 evenly via the flat washer 6. Therefore, by obtaining a large tightening torque by the bolt 3, it is possible to surely prevent the bolt 3 from coming loose even when applied as a screwing structure for a body to be attached accompanied by vibration of an automobile or the like.
[0021]
In addition, although embodiment mentioned above demonstrated based on the screwing structure of the fixed axis | shaft with respect to the bracket of the armrest for motor vehicle seats, it is not restricted to this, A tapping screw, a screw, etc. for various to-be-attached bodies and attachment base members It can apply widely to screwing with the screw member containing.
[0022]
【The invention's effect】
According to the screwed structure of the mounted body according to claim 1 of the present invention and the screwing method of the mounted body according to claim 5, the boss member made of resin and the washer member are provided as a buffer member for preventing loosening. Since the front end side of the boss member protrudes from the opening of the mounting base member and the washer member is integrated with each other by tightening with the screw member, a large tightening torque can be obtained so that the screw member does not loosen.
[0023]
In addition, when a mounting body is screwed with a screw member provided with a metal washer, the metal washer is previously held on the axis of the screw member by pressing it with a resin washer. Work can be done very easily.
[0024]
According to the screwing structure of the mounted body according to claim 2 of the present invention, the elastic force of the spring washer can be applied equally to the other party via the flat washer, so that the tightening force can be further strengthened by the screw member. can do.
[0025]
According to the screwed structure of the attached body according to claim 3 of the present invention, the collar portion of the boss member can act as a spacer by arranging the attached body directly on the collar portion of the boss member. When the mounted body is fastened and fixed with the screw member, the mounted body can be accurately positioned and temporarily fixed to the mounting base member.
[0026]
According to the mounting structure according to the fourth aspect of the present invention, the resin boss member and the washer member can be integrated extremely closely to obtain a larger tightening torque by the screw member.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an explanatory view showing the screwing structure of a mounted body according to the present invention in a main part.
FIG. 2 is an explanatory view showing a resin boss member constituting the screwing structure of FIG. 1 in a plan view.
3 is an explanatory view showing the boss member of FIG. 2 in a cross section taken along line AA. FIG.
4 is an explanatory view showing a resin washer member constituting the screwing structure of FIG. 1 in a plan view. FIG.
5 is an explanatory view showing the washer member of FIG. 4 in a cross-sectional view taken along line BB. FIG.
6 is an explanatory view showing an armrest for automobile equipment to which the screwing structure of FIG. 1 is applied. FIG.
7 is an explanatory view showing a frame structure for armrest equipment shown in FIG. 6. FIG.
FIG. 8 is an explanatory view showing an internal structure of an armrest to which the screwing structure of FIG. 1 is applied.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 To-be-attached body 2 Mounting base member 2a Opening of mounting base member 3 Screw member 3a Screw head 4 Resin boss member 4b Overhang flange part of boss member 5 Resin washer member 5b Concavity of washer member 6 Metal flat Washer 7 Metal spring washer

Claims (5)

A screw with a mounting base member provided on one side of the mounting base member provided with an opening for insertion of the screw member on the plate surface, and a metal washer on the axis from the opening of the mounting base member In the screwing structure of the mounted body, the member is screwed into the screw hole of the mounted body from the other surface side, and the mounted body is screwed to the mounting base member by interposing a resin ring member.
The ring member includes a boss member that protrudes from the opening of the mounting base member and is fitted into and fixed to the hole of the opening, and a washer member that is positioned on the axis of the screw member. The metal washer member is pre-equipped with a metal washer on the axis of the screw member to stop the washer, and the tip of the boss member is pressed against the washer member by screwing in the screw member. A screw-fixing structure for a body to be mounted, characterized in that it is integrated.   2. A screw fixing structure for a mounted body according to claim 1, wherein the flat washer is located on the resin washer side, the spring washer is located on the bolt head side, and a metal washer is provided on the axis of the screw member. .   2. The screw mounting structure for a mounted body according to claim 1, further comprising a resin boss member having a collar portion for directly placing and mounting the mounted body.   The screwed structure for a body to be attached according to claim 1, further comprising a resin washer member having a recess for receiving the tip side of the boss portion. A screw with a mounting base member provided on one side of the mounting base member provided with an opening for insertion of the screw member on the plate surface, and a metal washer on the axis from the opening of the mounting base member In the screwing method of the mounted body, the member is screwed into the screw hole of the mounted body from the other side, and the mounted body is screwed to the mounting base member by interposing a resin ring member.
As the ring member, a boss member that protrudes from the opening of the mounting base member and is fitted and fixed in the hole of the opening, and a washer member positioned on the axis of the screw member are used.
A metal washer is pre-equipped on the axis of the screw member, and a resin washer member is pre-equipped for the washer stop, and then the screw member is passed through the opening of the mounting base member to which the boss member is fixed. A screwing method for a mounted body, wherein the tip end side of the boss member is brought into pressure contact with a washer member by screwing the screw into a screw hole of the mounted body.

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