JP2008207285A - Screw fastening auxiliary tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screw fastening auxiliary tool which quickly copes with screw fastening of screws or bolts having a hexagonal head part or a hexagonal hole by a general screwdriver of a plus bit or a minus bit. <P>SOLUTION: This screw fastening auxiliary tool is provided by integrally forming a head part having an engaging groove matching a head shape of the plus bit or the minus bit of the screwdriver, and a fastening action part engaging with the head part of the screws or the bolts being a screw fastening object. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a screw tightening aid that enables tightening of a screw or bolt even when the tip shape of a bit of a driver is different from the shape of an engagement groove of a head of a screw or bolt.

  The head of the screw or bolt is formed with an engaging groove that matches the tip shape of the bit of the driver, and the screw or bolt is tightened by engaging the tip of the bit with this engaging groove. . Representative examples of the shape of the tip of the driver bit include a plus bit and a minus bit that match the shape of the engagement groove of a screw or bolt. On the other hand, when tightening a screw or bolt having a hexagonal hole formed in the head, an L-shaped hexagon wrench is usually used, and a hexagonal bolt having a hexagonal head is attached to the head. Tightened with a box wrench.

Thus, the form of the head of screws or bolts is various, and the tools for tightening this are also various, so in order to increase the rationality of the screw tightening work, a plus groove, There has been proposed a screw in which a minus groove and a hexagonal hole are simultaneously formed to correspond to various tools (see Patent Document 1). In addition, there is one in which a socket is detachably held at the tip of a driver so that bolts and nuts can be tightened (see Patent Document 2).
Japanese Utility Model Publication No. 5-92518 JP 2000-94351 A

  The technique disclosed in Patent Document 1 forms a plurality of groove (hole) shapes at the head of the screw at the same time, requires a complicated molding process, and lowers the mass of the head, so that it is rigid. There is a problem that decreases. The technique disclosed in Patent Document 2 aims to reduce the number of adapters for sockets by arranging a large number of different driver bits, and the socket adapters are inserted in accordance with the driver bits. This is a dedicated part for the driver bit in which a hole is formed, and is not compatible with various driver bits.

  By the way, currently, the heads of screws or bolts used at the production site and work site are mostly formed with a plus groove, so when workers carry plus bit drivers as regular ones In many cases, when it is necessary to tighten screws of different types of grooves (holes) or bolts, there is a problem in that it may be necessary to procure a tool suddenly to cope with this.

  The present invention has been made in view of such circumstances, and can be quickly adapted to screw tightening of screws or bolts having a hexagonal head shape or a hexagonal hole with a general driver of a plus bit or a minus bit. An object of the present invention is to provide a screw fastening aid.

  Therefore, the present invention solves the above problems by means described below. That is, according to the first aspect of the present invention, the head is engaged with the head of the screw or bolt to be tightened with the head formed with the engagement groove matching the tip shape of the plus bit or minus bit of the driver. A screw tightening auxiliary tool integrally formed with the tightening action portion is provided.

  According to a second aspect of the present invention, in the screw tightening auxiliary tool according to the first aspect, a hexagonal bit or a hexagonal hole is formed in the tightening action portion.

  According to a third aspect of the present invention, in the screw tightening auxiliary tool according to the first or second aspect, a guide portion for guiding the tip of a plus bit or a minus bit of a driver is integrally provided on the head.

  According to the first aspect of the present invention, the head formed with the engagement groove that matches the tip shape of the plus bit or minus bit of the driver and the tightening action portion that engages the head of the screw or bolt are integrated. Therefore, the bit of the driver and the head of the screw or bolt can be easily engaged, and the screw or bolt having a head shape different from the bit shape can be tightened. Further, since only the head portion and the tightening action portion are provided, it can be made extremely small and easy to carry, and it is possible to respond quickly according to the contents of the screw tightening operation.

  According to the second aspect of the present invention, in addition to the effect of the first aspect of the invention, since the hexagonal bit or the hexagonal hole is tightened, the hexagonal hole is attached by a plus bit or minus bit driver. Screws and hexagon socket head cap screws can be tightened.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the guide portion is provided integrally with the head, so that the tip of the driver bit is engaged with the tightening auxiliary tool. Operation can be facilitated.

  Next, embodiments of the present invention will be described in detail with reference to the drawings. The screw fastening aids 1 and 2 of the present invention shown in FIG. 1 are capable of screwing a hexagon socket head screw 10 or a hexagon socket head bolt 20 having hexagon holes 10b and 20b formed in the heads 10a and 20a. It is what. In this case, the screw tightening assisting tool 1 is formed with a head 1a in which a plus groove 1c is formed and a hexagonal bit that engages with the hexagonal hole screw 10 or the hexagonal holes 10b and 20b of the hexagonal hole bolt 20. The fastening action portion 1b is integrally formed of a metal material. On the other hand, the screw tightening assisting tool 2 is a tightening in which a hexagonal bit that engages with the head 2a in which the minus groove 2c is formed and the hexagon socket head screw 10 or the hexagon socket bolts 20b of the hexagon socket head bolt 20 is formed. The action part 2b is integrally formed of a metal material.

  The screw tightening aid 1 thus formed corresponds to a plus bit driver, and the screw tightening aid 2 corresponds to a minus bit driver. When the hexagon socket head screw 10 or the hexagon socket head cap screw 20 is tightened with a plus bit screwdriver, the hexagonal bit of the tightening portion 1b of the screw tightening auxiliary tool 1 is inserted into the hexagon socket head screw 10 as shown in FIG. Alternatively, the hexagon socket 10 is inserted into the hexagon sockets 10b and 20b of the hexagon socket bolt 20 and engaged.

  Then, by inserting the tip d2 of the plus bit d1 of the driver D into the plus groove 1c of the screw tightening auxiliary tool 1 and tightening, the screw 10 of the hexagon socket head screw 10 or the hexagon socket head bolt 20 can be tightened. On the other hand, when the driver D is a minus bit, the screw tightening tool 2 can be used to tighten the hexagon socket head screw 10 or the hexagon socket head bolt 20.

  It should be noted that the hexagon socket head screw 10, the hexagon socket head bolt 20 or the plus (minus) bit d1 of the driver D can be obtained by magnetizing the screw fastening aids 1 and 2 of the present invention thus formed in advance. Since it is magnetically attracted to the tip d2, the screw tightening operation can be efficiently performed. In the above description, the hexagon socket head cap screw 10 and the hexagon socket head cap screw 20 can be tightened with screws, and the tightening portions 1b and 2b are hexagonal bits. It is formed to match the hole shape of the head of the screw or bolt, and is not limited to the hexagonal bit.

  Next, the screw fastening aids 3 and 4 of the present invention in FIG. 2 are configured so that the heads 30a and 40a can be screwed with the hexagonal screw 30 or the hexagon bolt 40 having a flat hexagonal shape. In this case, the screw tightening auxiliary tool 3 includes a head portion 3a in which a plus groove 3c is formed, and a tightening action portion in which a hexagon hole 3d that engages the head portions 30a and 40a of the hexagon screw 30 or the hexagon bolt 40 is formed. 3b is integrally formed of a metal material. On the other hand, the screw tightening auxiliary tool 4 includes a head portion 4a in which a minus groove 4c is formed and a tightening action portion 4b in which a hexagon hole 4d that engages with the head portions 30a and 40a of the hexagon screw 30 or the hexagon bolt 40 is formed. Are integrally formed of a metal material.

  The screw tightening aid 3 thus formed corresponds to a plus bit driver, and the screw tightening aid 4 corresponds to a minus bit driver. When the hexagon screw 30 or the hexagon bolt 40 is tightened by the screwdriver D of the plus bit, the hexagon hole 3d of the screw tightening auxiliary tool 3 is engaged with the heads 30a, 40a of the hexagon screw 30 or the hexagon bolt 40.

  Then, by inserting the tip d2 of the plus bit d1 of the driver D into the plus groove 3c of the screw tightening auxiliary tool 3 and tightening, the hexagon screw 30 or the hexagon bolt 40 can be tightened. On the other hand, when the screwdriver D is a minus bit, the screw tightening of the hexagon screw 30 or the hexagon bolt 40 can be performed by using the screw tightening auxiliary tool 4.

  In the case of the screw tightening aids 3 and 4 as well, the screw tightening operation can be efficiently performed by performing the magnetizing process in advance. Further, in the above description, in order to enable screw tightening of the hexagon screw 30 and the hexagon bolt 40, the tightening action portions 3b and 4b are described as examples in which the hexagon holes are formed, but the tightening action portion 3b, The shape of the hole 4b is formed so as to match the shape of the head of the screw or bolt, and is not limited to the hexagonal hole.

  FIG. 4 shows an example of a screw tightening assisting tool 5 for tightening a screw or bolt having a minus groove formed in the head. The head 5a having a plus groove 5c and a screw or bolt are shown. The minus bit tightening portion 5b that engages with the minus groove of the head of the kind is integrally formed of a metal material, and the screw of the minus groove or the bolts can be tightened with a plus bit screwdriver. Become.

  FIG. 5 shows an example of a screw tightening assisting tool 6 for tightening a screw or bolt having a plus groove formed in the head. The head 6a having a minus groove 6c, Alternatively, the plus bit tightening action portion 6b that engages with the plus groove on the head of the bolt is integrally formed of a metal material, and the screw of the plus groove or the bolt can be tightened with a minus bit driver. It becomes possible.

  6 and 7 show an example of a developmental configuration of the present invention, and a cylindrical body is formed on the head 1a of the screw fastening aid 1 in FIG. 1 and the head 3a of the screw fastening aid 3 in FIG. The lower end is fixed to become the guide portion 7. Thereby, since the front-end | tip part of the bit of a driver is guided, the operation engaged with a screw fastening auxiliary tool can be made easy.

  As described above, the screw tightening auxiliary tool of the present invention is a compact form in which the head and the tightening action part are integrally formed, and thus is carried to the work site and the construction site without requiring a large storage space. be able to. In addition, different types of screws or bolts can be tightened with a regular plus or minus bit screwdriver without the need for special tools such as a hexagon wrench or box wrench, improving work efficiency. Thus, the present invention has effects peculiar to the present invention.

It is a figure which shows the screwing auxiliary tool and embodiment of this invention. It is a figure which shows the screwing auxiliary tool and embodiment of this invention. It is a figure which shows the usage condition of the screw fastening auxiliary tool of this invention. It is a figure which shows the other example of the screw fastening auxiliary tool of this invention. It is a figure which shows the other example of the screw fastening auxiliary tool of this invention. It is a figure which shows the development structure of the screw fastening auxiliary tool of this invention. It is a figure which shows the development structure of the screw fastening auxiliary tool of this invention.

Explanation of symbols

1. Screw tightening aid 1a ... Head 1b ... Tightening action part 1c ... Plus groove 2. Screw tightening Auxiliary tool 2a ··· Head 2b ··· Tightening action part 2c ··· Minus groove 3 ····· Screw tightening aid 3a ··· Head 3b ··· Tightening action portion 3c ··· Plus groove 3d · · · Hexagonal hole · · · · Screw tightening aid 4a · · · Head 4b ··· Tightening part 4c ··· Minus groove 4d · · · Hexagonal hole · · · · Screw tightening aid 5a · · · Head 5b・ ・ ・ ・ ・ ・ Tightening action part 5c ・ ・ ・ ・ ・ ・ Plus groove 6 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Screw tightening auxiliary tool 6a ・ ・ ・ ・ ・ ・ Head 6b ・ ・ ・ ・ ・ ・ Tightening action part 6 c ・ ・ ・ ・ ・ ・ Minus groove 7 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Guide part

Claims (3)

  A head part formed with an engaging groove that matches the tip shape of the screw driver's plus bit or minus bit and a tightening action part that engages the head of a screw or bolt to be screwed are integrally formed. A screw fastening aid characterized by   The screw tightening auxiliary tool according to claim 1, wherein a hexagonal bit or a hexagonal hole is formed in the tightening action portion.   The screw tightening assisting device according to claim 1 or 2, wherein a guide portion for guiding a tip of a plus bit or a minus bit of a driver is integrally provided on the head portion.

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