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Male threaded member

A technology of external threads and threaded parts, which is applied in the direction of threaded fasteners, screws, bolts, etc., can solve the problem of time-consuming connection operations, achieve the effect of avoiding thermal stress and realizing the number of parts

Active Publication Date: 2019-08-02
TOPURA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in Patent Document 1, there is a problem that, in connection work, it is necessary to insert a washer into the mounting hole of the mounting member, insert a bolt thereon, and fasten it, requiring two steps of inserting the washer and connecting the bolt. , the join job is time consuming

Method used

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  • Male threaded member
  • Male threaded member
  • Male threaded member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0064] figure 1 A connection structure using the male screw member according to Embodiment 1 of the present invention is shown.

[0065] Such as figure 1 As shown, the externally threaded member 1 has a head portion 3 and a shaft portion 5 and is used for fixing to a connected member 102 of a resin plate 101 as an attachment member. The resin plate 101 is a resin plate using a fiber reinforced resin material such as a resin material or CFRP, and is provided with a mounting hole 105 of the externally threaded member 1 , and the shaft portion 5 is inserted through the washer 7 mounted on the inner periphery of the mounting hole 105 .

[0066] The externally threaded member 1 of the present invention has a structure in which the washer 7 is preliminarily fitted integrally with the shaft portion 5 . In this embodiment, the shaft portion 5 has a threaded portion 51 and a neck portion 52 provided between the threaded portion 51 and the head portion 3 , and the washer 7 is rotatabl...

Embodiment approach 2

[0098] Next, refer to Figure 5 A connection structure using an externally threaded member according to another embodiment of the present invention will be described. In the following description, only the differences from Embodiment 1 will be described, and the same components will be assigned the same reference numerals and their descriptions will be omitted.

[0099] In this embodiment, there is no internally threaded hole 104 on the connected member 102, and an insertion hole 109 having a diameter slightly larger than the mounting hole 105 of the resin plate penetrates therethrough. On the opening side of the insertion hole 109, a threaded external thread member is arranged. 1 internally threaded part 108 of the threaded part 51. Then, it is configured to be sandwiched between the resin panel 101 and the connected member 102 , to sandwich the resin plate 101 and the connected member 102 , and to be tightly connected by the external thread member 1 and the internal thread ...

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PUM

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Abstract

Provided is a male threaded member configured such that a collar is mounted in advance on the male threaded member side to make it possible that fastening work is efficiently performed without increasing the number of parts. This male threaded member 1 is configured such that a shaft 5 is inserted into a mounting hole 105 in a mounting member 101 with a collar 7 therebetween, and the mounting member 101 is fastened to a member 102 to which the mounting member 101 is to be fastened. The shaft 5 is provided with a thread 51 and a neck 52. The collar 7 is mounted to the neck 52 so as to be rotatable relative to the neck 52 and is engaged with and retained by the thread 51. When a counterbored hole 106 is formed in the mounting hole 105-side opening of a female threaded hole 104, the axial length of the cylindrical section 71 of the collar 7, which is inserted into the mounting hole 105, is set greater than the sum of the length of the mounting hole 105 and the depth of the counterbored hole 106 by an amount corresponding to the difference between the amount of elongation of both the mounting member 101 and the member 102, to which the mounting member 101 is to be fastened, due to thermal expansion at the highest temperature of the expected environment of use, and the amount of elongation of the collar 7.

Description

technical field [0001] The present invention relates to a male screw member and a female screw member for fixing a mounting member such as resin to a connected member such as metal, and more particularly to a male screw member integrally incorporated with a washer mounted in a mounting hole of the mounting member. Background technique [0002] In the prior art, it is known that when using bolts to connect resin mounting parts such as resin materials or carbon fiber reinforced resin materials to hard connected parts, a washer with a flange is installed on the mounting hole of the mounting part, and the connection is made via the washer. connection structure (for example, refer to Patent Document 1, Patent Document 2). [0003] In Patent Document 1, in connection work, a washer is attached to an attachment hole of a resin plate, the metal plates are stacked, and they are connected and fixed by bolts and nuts. [0004] In Patent Document 2, a washer is glued and fixed in advan...

Claims

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Application Information

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IPC IPC(8): F16B39/26F16B25/00F16B43/00
CPCF16B19/02F16B5/0258F16B41/002F16B2200/83F16B5/0241F16B25/00F16B39/26
Inventor 松本晋典松野真弓
Owner TOPURA CO LTD