JPH08150876A - Fixing device - Google Patents

Abstract

PURPOSE: To reduce the number of part items and manually rotate an adapter by coupling the adapter having a grip with a fixing metal and a shield member rotatably storing and fixing the fixing metal having a screw section and a head section with a noncircular cross section with a fitting member. CONSTITUTION: A nut section having an inner screw, notch sections 22 on the outer periphery, an outside flange section 23, and a circular groove 24 are formed on a fixing metal 11. An inside flange section 30 kept in contact with the outside flange section 23, a through hole section 31 to be inserted with the fixing metal 11, recesses 32, and a hold section 33 are formed on a shield member 12. The C-shaped stop ring 36 is coupled with the circular groove 24, and the fixing metal 11 is rotatably fixed to the shield member 12. When an adapter 14 having the inside and outside projections 42, 43, a coupling section 40, and a grip 41 coupled with a hole section 45, the notches 22, and the recesses 32 is fitted, the hook section 52 of the leaf spring 51 of the groove 48 of the shield member 12 is coupled and fixed to the circular notch section 40a of the coupling section 40. This fixing device can be formed with few constituting portions, the cost is reduced, and its handling can be facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device, and more particularly to a fixing device for fixing an automobile roof carrier to a support bar.

[0002]

2. Description of the Related Art For example, Japanese Utility Model Application No. 54-87265 (Japanese Utility Model Application Laid-Open No. 56-6951) shows a fixing device for a distributor having a bottomed cylindrical body for preventing rotation of a bolt. This fixing device has a bottom plate in which a bolt insertion hole is formed, an inner surface having a cross-sectional shape other than a circle centered on the axis of the bolt, and a tool engaging portion for engaging a rotary tool with the outer surface. A bottomed cylindrical body, which is provided rotatably around the axis of the bolt, and a side wall that surrounds the head of the bolt so that the rotary tool cannot engage with it, and the inner surface of the bottomed cylindrical body and the bolt. And a detent member that has a cross-sectional shape corresponding to the gap with the outer side surface of the head portion and that prevents relative rotation of the bottomed tubular body with respect to the bolt head portion when inserted into the gap. Only when the detent member is inserted in the gap, the bolt can be rotated by the rotary tool.

Further, as disclosed in Japanese Utility Model Publication No. 5-45575, a lock device for a roof carrier using a cylinder lock has been proposed. When the cylinder lock is locked, the cylinder lock idles to prevent unauthorized removal of the nut.

[0004]

In the conventional fixing device,
Since a rotating tool is used, there is a drawback that the number of parts increases, and when the bolt cover is sandwiched and rotated by a powerful tool, the bolt is also rotated. You. Further, since a cylinder lock must be used, there is a problem that the structure becomes complicated, and a fixing device that can be manually rotated has not been proposed.

An object of the present invention is to provide a fixing device which has a small number of parts and can be manually rotated.

[0006]

In the fixing device according to the present invention, a fixing metal fitting having a bolt portion or a nut portion and having a head portion having a non-circular cross section, and an outer flange portion formed on the head portion of the fixing metal fitting are in contact with each other. A shield having a contacting inner flange portion, a through hole portion formed in the inner flange portion and in which a fixing fitting is disposed, a recess having a non-circular cross section formed on the axially outer side of the inner flange portion, and a grip portion formed on the outer peripheral portion. Members,
A mounting member for rotatably fixing the fixing member to the shield member on the inner side of the inner flange portion in the axial direction, a recess having a non-circular cross section of the shield member, and a head having a non-circular cross section of the fixing member, and having a grip. It is equipped with an adapter. The non-circular cross section of the head of the fixing member is axially displaced and arranged inside the non-circular cross section of the recess of the shield member. When the adapter is mounted in the recess of the shield member, the spring fitted in the cutout portion of the adapter is arranged in the groove of the shield member to give a moderation feeling when the adapter is attached and detached. A ball that elastically abuts the shield member and a spring that presses the ball against the shield member are provided in the fixing metal fitting,
Gives a sense of moderation when attaching and detaching the adapter. The non-circular cross section of the head of the fixture is formed by providing a plurality of arcuate cutouts. The non-circular cross section of the recess of the shield member is formed by providing a plurality of arcuate notches, and the arcuate protrusion formed on the inner peripheral surface of the adapter is fitted into the arcuate notch of the fixing bracket. . The arc-shaped projection formed on the outer peripheral surface of the adapter is fitted into the arc-shaped cutout formed in the recess of the shield member, and the arc-shaped cutout of the fixing metal fitting with respect to the arc-shaped cutout of the shield member. Are misaligned in the axial direction. The mounting member has a metal washer that comes into contact with the inner flange portion of the shield member, and a C-shaped retaining ring that is fitted into the annular groove of the fixing bracket. The bolt or nut is fixed to the carrier.

[0007]

The fixing member is rotatably attached to the shield member by the attaching member. When the adapter is fitted into the recess of the shield member having a non-circular cross section and the head portion of the fixing member having a non-circular cross section, the fixing member and the shield member are attached. Rotate together via the adapter. In this state, when the grip portion of the shield member is manually rotated, the fixing metal fitting is rotated together with the shield member, and the fixing metal fitting can fix the roof carrier to the roof of the automobile. After that, when the adapter is removed, the shield member freely rotates on the fixing bracket, so that the fixing bracket cannot be rotated by the tool. Therefore, it is possible to prevent unauthorized removal of the roof carrier.

When the non-circular cross-section of the head of the fixing member is axially displaced with respect to the non-circular cross-section of the recess of the shield member and arranged inside, the insert is arranged between the fixing member and the shield member. However, since the shield member rotates relative to the fixing member, it becomes difficult to remove the roof carrier illegally. A spring or a ball fitted in the notch of the adapter and a spring that presses the ball against the shield member provide a moderation when attaching and detaching the adapter, and also prevent the adapter from naturally dropping from the shield member. it can.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a fixing device according to the present invention will be described below with reference to FIGS.

1 to 10 show a fixing device 1 according to the present invention.
A first embodiment of is shown. As shown in FIG. 1, a fixing device 1 according to the present invention is used for fixing a rod 4 to a support bar 3 fixed to a roof 2 of an automobile. Rod 4
A roof carrier 5 is attached to the roof carrier 5. 2 and 3
As shown in FIG. 1, the fixing device 1 includes a fixing member 11, a shield member 12 surrounding the fixing member 11, and a shield member 1.
A mounting member 13 for mounting the fixing bracket 11 to the 2;
An adapter 14 mounted between the fixing metal fitting 11 and the shield member 12 is provided.

The fixing member 11 has a nut portion 21 having an inner screw 20, a plurality of cutout portions 22 formed on the outer peripheral surface of one end of the nut portion 21, and an outer flange portion 23 provided at the inner end of the cutout portion 22. And an annular groove 24 formed at the other end of the nut portion 21. One end of the nut portion 21 constitutes a head portion having a non-circular cross section by a plurality of arcuate notches 22. The shield member 12 has an inner flange portion 30 with which an outer flange portion 23 formed on the head of the fixture 11 abuts.
A through hole portion 31 formed in the inner flange portion 30 and in which the fixing metal fitting 11 is arranged; a recess portion 32 formed on the axially outer side of the inner flange portion 30; and a grip portion 33 formed on the outer peripheral portion. Have. The recess 32 is formed by providing a plurality of arcuate cutouts, and forms a non-circular cross section. The mounting member 13 includes a metal washer 34 that comes into contact with the inner flange portion 30 of the shield member 12, and the fixing bracket 1.
1 and a C-shaped retaining ring 36 fitted in the annular groove 24,
The mounting member 13 rotatably fixes the fixing member 11 to the shield member 12 inside the inner flange portion 30 in the axial direction.
The adapter 14 has a fitting portion 40 and a grip 41 formed to project from the fitting portion 40. Inside the fitting portion 40, a hole portion 45 for receiving the fixing member 11 and an inner protruding portion 42 that is formed so as to project inwardly in the hole portion 45 and fits into the cutout portion 22 are provided. Outside the fitting portion 40, an outer protruding portion 43 that fits into the recess 32 formed in the shield member 12 is provided. The grip 41 of the adapter 14 can be gripped by hand and fitted into the recess 32 of the shield member 12 and the notch 22 of the fixture 11. In this embodiment,
The notch 22 of the fixture 11 is the recess 3 of the shield member 12.
It is arranged on the inner side with respect to 2 in the axial direction. The grip 41 is formed with a through hole 44 in which an end of a bolt received by the nut portion 21 of the fixing member 11 can be arranged. Fixing bracket 11
The corrugated washer 46 and the washer 47 are provided between the outer flange portion 23 of the shield member 12 and the inner flange portion 30 of the shield member 12.
Is arranged.

A locking portion 52 is provided in the groove 48 of the shield member 12.
A leaf spring 51 having a substantially Z-shaped cross section is arranged. When the adapter 14 is mounted, the locking portion 52 of the leaf spring 51 is fitted into the annular cutout 40a of the fitting portion 40.

At the time of assembly, first the leaf spring 51
Are arranged in the recess 48 of the shield member 12. Next, after the washer 47 and the corrugated washer 46 are arranged on the inner flange 30 of the shield member 12, the nut portion 21 of the fixture 11 is arranged in the washer 47, the corrugated washer 46, and the through hole portion 31 of the shield member 12. Then, after mounting the washer 34 on the nut portion 21, the C-shaped retaining ring 36 is mounted on the annular groove 24 of the nut portion 21, and the fixing member 11 is rotatably attached to the shield member 12 by the attaching member 13.

In use, the fitting portion 40 of the adapter 14
Is inserted into the shield member 12 to fit the inner protruding portion 42 of the adapter 14 into the cutout portion 22 of the fixing member 11, and at the same time, the outer protruding portion 43 of the adapter 14 to the shield member 1
It fits in the recess 32 of 2. At this time, the locking portion 52 of the leaf spring 51 is fitted into the annular notch 40a of the adapter 14, so that a sense of moderation is given when the adapter 14 is attached and detached, and the adapter 14 is prevented from falling naturally from the shield member 12. be able to. In this state, the fixing member 11 and the shield member 12 rotate integrally via the adapter 14. In this state, the grip portion 33 of the shield member 12
When the is manually rotated, the fixing bracket 11 is rotated together with the adapter 14, so that the fixing bracket 11 can fix the roof carrier 5 to the roof 2 of the automobile. After that, when the adapter 14 is removed from the shield member 12, the shield member 12 freely rotates on the fixing member 11, so that the fixing member 11 cannot be rotated by a tool. Therefore, it is possible to prevent unauthorized removal of the roof carrier 5.

In this embodiment, the notch 22 of the fixing member 11
And the recess 32 of the shield member 12 are axially displaced from each other, so that even if an insert is arranged between the fixing member 11 and the shield member 12, the shield member 12 is relatively positioned with respect to the fixing member 11. There is an advantage that the roof carrier rotates and it becomes difficult to remove the roof carrier illegally.

As shown in FIGS. 7 and 8, the adapter 14
When the fitting portion 40 of is inserted into the shield member 12 in the correct direction, the fitting can be smoothly performed.

FIG. 11 shows a second embodiment of the present invention in which the leaf spring 51 is omitted.

12 and 13 show a third embodiment of the present invention in which a seal member 12 which is long in the axial direction is formed. In this embodiment, instead of the leaf spring 51, a spring 53 and a ball 54 pressed outward by the spring 53 are arranged in the recess 11 a formed in the fixing fitting 11. Since the inner surface of the annular projection 14a of the adapter 14 contacts the ball 54 pressed by the spring 53, a moderation feeling is given when the adapter 14 is attached and detached. The lower cross section of the adapter 14 that contacts the fixing bracket 11 is circular, but the cross section that contacts the shield member 12 is hexagonal.

FIG. 14 shows a fourth embodiment of the present invention in which the notch 22 of the fixing member 11 is arranged so as to oppose the recess 32 of the shield member 12 without being axially displaced. FIG.
Shows an example of inserting the adapter 14 into the shield member 12 from the correct direction.

FIG. 16 shows a fifth embodiment in which a bolt portion 21a is formed as the fixing metal fitting 11 in place of the nut portion 21.

[0021]

The fixing device can be constructed with a small number of components without using an expensive cylinder lock, and the manufacturing cost can be reduced. Further, since the shield member can be manually rotated, it is easy to handle.

[Brief description of drawings]

FIG. 1 is a perspective view showing a support bar fixed to a roof of an automobile equipped with a fixing device according to the present invention.

FIG. 2 is a sectional perspective view of a fixing device according to the present invention.

FIG. 3 is an exploded perspective view of the fixing bracket and the shield member.

FIG. 4 is a plan view of FIG.

5 is a bottom view of FIG.

FIG. 6 is an exploded perspective view showing a state where an adapter is inserted.

FIG. 7 is a sectional view showing a completely fitted state of the adapter.

FIG. 8 is a sectional view showing a state in which the adapter is completely fitted in FIG.

FIG. 9 is a sectional view showing an incompletely fitted state of the adapter.

FIG. 10 is a plan view of FIG.

FIG. 11 is a sectional view showing a second embodiment of the present invention in which a leaf spring is omitted.

FIG. 12 is a third view of the present invention using an elongated seal member.
Sectional view showing an embodiment of

13 is a plan view of FIG.

FIG. 14 is a cross-sectional view showing a fourth embodiment of the present invention in which a notch portion of a fixed metal portion and a recess portion of a shield member are arranged so as to face each other.

FIG. 15 is a cross-sectional view showing a state in which the adapter is mounted inside the shield member in FIG.

FIG. 16 is a cross-sectional view showing a fifth embodiment of the present invention showing a fixing fitting in which a bolt portion is formed instead of the nut portion.

[Explanation of symbols]

1 ... Fixing device, 2 ... Roof, 3 ... Support bar,
4 ・ ・ Rod, 5 ・ ・ Roof carrier, 11 ・ ・ Fixing bracket, 12 ・ ・ Shield member, 13 ・ ・ Mounting bracket,
14 ... Adapter, 20 ... Inner screw, 21 ... Nut part, 22 ... Notch part, 23 ... Outer flange part, 24 ... Annular groove, 30 ... Inner flange part,
31 ... Through-hole portion, 32 .. Recessed portion, 33 .. Grip portion, 40 .. Fitting portion, 40a .. Annular cutout portion, 41
..Grips, 42..Inner protrusions, 43..Outer protrusions, 51..Leaf springs, 52 ..

Claims (7)

[Claims] 1. A fixing metal fitting having a bolt portion or a nut portion and having a head with a non-circular cross section, and an inner flange portion and an inner flange portion with which an outer flange portion formed on the head portion of the fixing metal fitting abuts. In addition, a shield member having a through-hole portion in which the fixing bracket is arranged, a concave portion having a non-circular cross section formed on the axially outer side of the inner flange portion, and a grip portion formed on the outer peripheral portion, and an axially inner side of the inner flange portion. A mounting member for rotatably fixing the fixing bracket to the shield member, an adapter fitted to the recess of the shield member having a non-circular cross section and the head of the fixing bracket having a non-circular cross section, and having a grip are provided. And the fixing device. 2. The fixing device according to claim 1, wherein the non-circular cross-section of the head of the fixing member is axially displaced from the non-circular cross-section of the recess of the shield member and arranged inside. 3. The spring according to claim 1, wherein when the adapter is mounted in the recess of the shield member, a spring fitted in the notch of the adapter is arranged in the groove of the shield member to give a moderation feeling when the adapter is attached and detached. Fixing device. 4. The fixing device according to claim 1, wherein a ball elastically abutting on the shield member and a spring for pressing the ball against the shield member are provided on the fixing metal fitting to give a moderation feeling when the adapter is attached and detached. 5. The non-circular cross section of the head of the fixing member is formed by providing a plurality of arcuate notches, and the non-circular cross section of the recess of the shield member is formed by providing a plurality of arcuate notches. The arc-shaped projection formed on the inner peripheral surface of the adapter is fitted into the arc-shaped cutout portion of the fixing bracket, and the arc-shaped projection formed on the outer peripheral surface of the adapter is formed in the recess of the shield member. The fixing device according to claim 2, wherein the fixing device is fitted in the arcuate notch, and the arcuate notch of the fixing bracket is axially displaced with respect to the arcuate notch of the shield member. 6. The fixing device according to claim 1, wherein the mounting member has a metal washer that abuts on an inner flange portion of the shield member, and a C-shaped retaining ring that is fitted into an annular groove of the fixing metal member. 7. The fixing device according to claim 1, wherein the bolt or the nut is fixed to the carrier.