JPH05213185A - Thin shell structure attaching mechanism - Google Patents

Abstract

PURPOSE:To provide a thin shell structure attaching mechanism capable of fastening the thin shell structure with a band having proper tension through the leverage of a stay member, i.e., a portion of an attaching structure member to attach simply, light and surely the thin shell structure for a short time. CONSTITUTION:A thin shell structure attaching mechanism is provided with a structure composed of a band 4 having engaging parts 4a on both ends, a thin shell support member 2 having a first locking part 2a for locking the engaging part 4a at one end of the band 4 and fixing the end having the first locking pert 2a to a fixing member 1, a stay member 5 provided with a second locking part 5a having a fixed part 5b fixed to a fixing member 1 on one end and locking the engaging part 4a on the other end of the band 4 in the other end so that the second locking part 5a is located on the other end of the support member 2 and connected pivotably to the support member 2 in a position deviated from the center of total length to the second locking part 5a side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting mechanism for a thin shell structure such as a tank.

[0002]

2. Description of the Related Art When a mounting bracket is attached to the body of a thin shell structure such as a tank, stress concentration is caused in the vicinity of the attachment and cracks are likely to occur. Further, in a case where a closed structure such as a tank is required, a troublesome sealing procedure is required in the mounting method using a bolt and the like accompanied by making a hole in the main body.

Therefore, as a general mounting mechanism for a thin shell structure, as shown in FIG. 4, a tank 11 (thin shell structure) supported on a supporting member 10 is surrounded by a band 11 (made of metal). , A structure in which the band 11 is fastened and fixed to the support member 10 by the bolts 12, and the support member 1 as shown in FIG.
A structure is used in which the tank 3 is surrounded by a pair of bands 11a and 11b fixed to 0, and the pair of bands 11a and 11b are tightened with bolts 12. (As a known example,
(See No. 56-35458 and No. 56-35459)

[0004]

However, in the above-mentioned conventional mechanism, it is difficult to adjust the torque of the bolt 12 for tightening the bands 11, 11a, 11b, and the deformation of the tank 3 or the bands 11, 11a, 11b due to excessive tightening. However, there is a problem that causes the tank 3 to fall off due to insufficient cutting.

This problem can be solved by controlling the tightening torque at the time of mounting work. For example, when mounting as a tank of a vehicle, work for a very short time is required for vehicle assembly. In the process, it is difficult to tighten to the optimum value using a torque wrench or the like, and there is a problem that introducing an automatic machine that accurately tightens with a predetermined torque increases the production cost.

An object of the present invention is to impart a lever function to a part of the mounting mechanism so as to apply an appropriate tension (tightening force) to the band so that the thin shell structure is securely fixed in a short time. A thin shell structure mounting mechanism is provided.

[0007]

To achieve the above object, the gist of the present invention is to provide a band having engaging portions at both ends and an engaging portion at one end of the band at one end. A thin shell support member having a first locking portion, one end on the side having the first locking portion fixed to a fixing member, and a fixing portion fixed to the fixing member at one end, and the other end. Is provided with a second locking portion that locks the engaging portion at the other end of the band, and the second locking portion is located at the other end of the support member and extends from the center of the entire length to the second locking portion. The stay member is rotatably pivotally attached to the support member at a position deviated to the side.

[0008]

With the above structure, one end of the stay member is detached from the fixing member to make the stay member rotatable, and the locking portion at one end of the band is provided at one end of the supporting member.
A thin shell such as a tank that is supported by a support member by being locked to a locking portion is surrounded, and a locking portion at the other end of the band is locked at a second locking portion provided at the other end of the stay member. To do. Then, by rotating the fixing portion at one end of the stay material toward the fixing member, tension is applied to the band by the lever action of the stay material, and the thin shell is tightened with an appropriate tightening force. The fixing portion at one end of the stay member rotated to the fixing member side is fixed to the fixing member with a bolt or the like to hold the appropriate tightening force.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings when applied to tanks mounted on a vehicle.
1 and 2, reference numeral 4 denotes a band for tightening a tank 3 (thin shell structure) described later, and hook-shaped engaging portions 4a are provided at both ends thereof. The band 4 is preferably made of metal, but may be made of another tough material. 1 is a chassis frame (fixing member), 2 is the chassis frame 1
Is a support member whose one end is fixed to. A first locking portion 2a (hole) for locking the engaging portion 4a at one end of the band 4 is provided at one end of the support member 1 on the chassis frame 1 side.

Reference numeral 5 denotes a bolt 8 and a nut 9 on the support member 2.
The stay member is rotatably and pivotally attached by. A fixing portion 5b fixed to the chassis frame 1 is provided at one end of the stay material 5, and another end of the band 4 is provided at the other end of the stay material 5 located at the other end of the supporting member 2. The second locking portion 5a (hole) for locking the joining portion 4a is provided.

As shown in FIG. 3 (a), the pivot point of the stay member 5 with respect to the support member 2 is located at the other end of the support member 2 with the second engaging portion 5a and the center of the entire length 1 from the center. 2 A position eccentric to the side of the locking portion 5a is rotatably attached to the support member 2. As a result, the stay member 5 constitutes a lever having a lever ratio of length L1> L2 with the pivot point as the base point. still,
6 is a bolt for fixing the fixing portion 5b of the stay member 5 to the chassis frame 1, and 7 is a nut.

A mounting method by the thin shell structure mounting mechanism having the above structure will be described with reference to FIG. First, as shown in FIG. 3A, the fixing portion 5b at one end of the stay member 5 is removed from the chassis frame 1 to make it rotatable.

Next, as shown in FIG. 3B, the supporting member 2
The tank 3 is placed on the upper side, and as shown in FIG. 3C, the engaging portion 4a at one end of the band 4 is engaged with the first engaging portion 2a at one end of the supporting member 2 (see FIGS. 1 and 2). Further, the engaging portion 4a at the other end of the band 4 is locked to the second locking portion 5a at the other end of the stay member 2.

Further, as shown in FIG. 3D, the fixing member 5b is rotated while holding the longer length L1 of the stay member 5 in the direction in which the fixing portion 5b approaches the chassis frame 1. As a result, the band 4 is applied with an appropriate tension for tightening the tank 3 with a small force due to the lever action of the stay material 5.

Then, as shown in FIG. 3 (e), when the fixing portion 5b of the stay member 5 comes into contact with the chassis frame 1, the bolt 6 is inserted into the bolt hole which is previously opened, and the bolt 6 is tightened with the nut 7. By tightening, one end of the stay material 5 is fixed to the chassis frame 1, the tension of the band 4 applied by the rotational movement is held, and the tank 3 is fixed and fixed on the support member 2. Finally, stay material 5
The bolt 8 at the pivot point, which is the center of rotation, is tightened with the nut 9 to surely restrain the rotational movement of the stay member 5 so that the support member 2 has a stay function (reinforcement).

Length of band 4 and stay material 5 L1> L
The lever ratio of 2 is the tank 3 mounted on the support member 2.
By properly combining them according to the size and rigidity of the (thin shell), it is possible to avoid insufficient tightening or excessive tightening of the band.

In the embodiment of the present invention described above, the tank is mounted on the vehicle. However, the invention can be applied to mounting an air cleaner and can be widely applied to mounting thin shell structures other than those mounted on a vehicle.

[0018]

As described above, the thin shell structure mounting mechanism of the present invention has the band having the engaging portions at both ends and the first engaging portion for engaging the engaging portion at the one end of the band at one end. A thin shell support member having one end on the side having the first locking portion fixed to a fixing member; and a fixing portion fixed to the fixing member at one end, and the other end of the band. Second to lock the end engaging part
An engaging portion is provided, and the second engaging portion is located at the other end of the supporting member and is pivotally attached to the supporting member at a position deviated from the center of the entire length toward the second engaging portion. Since it is a structure composed of a stay material composed of the following, it is necessary to apply an appropriate tension to the band tightening of the thin shell structure by the lever action of the stay material which is a part of the structural member for increasing the rigidity of the entire mounting mechanism. It has the advantages of being simple, lightweight, and capable of reliably mounting the thin shell structure in a short time.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is an exploded perspective view of the present invention.

FIG. 3 is an explanatory view of a mounting method according to the present invention.

FIG. 4 is a perspective view of a conventional mounting mechanism.

FIG. 5 is a perspective view of a conventional mounting mechanism.

[Explanation of symbols]

 1 Chassis Frame (Fixing Member) 2 Support Member 2a First Locking Part 3 Tank (Thin Shell Structure) 4 Band 4a Engaging Part 5 Stay Material 5a Second Locking Part 5b Fixing Part 6 Bolt 7 Nut 8 Bolt 9 Nut

Claims (1)

[Claims] 1. A band having engaging portions at both ends, and a first engaging portion for engaging with an engaging portion at one end of the band at one end, and one end on a side having the first engaging portion A thin shell support member fixed to the fixing member, a fixing portion fixed to the fixing member at one end, and a second locking portion for locking the engaging portion at the other end of the band at the other end. A stay member comprising the second locking portion rotatably attached to the support member at a position located at the other end of the support member and offset from the center of the entire length toward the second locking portion. A thin-shell structure mounting mechanism characterized by being composed of and.