JP2002018159A - Attachment structure of handle part in opening and closing manual tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the attachment structure of a handle part in scissors by which the number of parts is reduced to easily perform production and assembling and also a work for the separation work of the handle part is easily performed in the case of recycling. SOLUTION: The base end part 14c and an engagement pin 14e of a first blade part 14 are engaged with an engagement groove 15c and an engagement hole 15e which are formed in the connecting part 15b of a first handle part 15 so as to be separatable. In the same way, the base end part 16c and an engagement pin 16e of a second blade part 16 are engaged with an engagement groove 17c and an engagement hole 17e which are formed in the connecting part 17b of a second handle part 17 so as to be separatable. Then the columnar part 18a of a shaft main body 18 constituting a connection shaft 13 is inserted to circular holes 16d and 17d which are arranged in the base end part 16c and the connecting part 17b, the rectangular hole 14d of the first blade part 14 and the rectangular hole 15d of the first handle part 15 are engaged with a quadrilateral part 18c and a vis 19 is screwed onto the screw hole 18d of the shaft main body 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handle mounting structure for a rotary manual lever such as scissors, a bar, or a nipper.

[0002]

2. Description of the Related Art Conventionally, scissors have a structure in which a first scissor member and a second scissor member are connected at an intermediate portion by a connecting shaft.
In this scissor, the first scissor member and the second scissor member are each formed of metal such as iron of the same material, and the first and second blade portions constituting the first and second scissor members are formed of metal. And the first
And those in which the second handle is formed of a synthetic resin material.

Since the former scissors are entirely made of metal, they can be easily recycled when discarded.
No problem. In the latter scissors, generally, a core integrally formed at the base ends of the first and second blade portions is insert-molded at the time of resin molding of the first and second handle portions.

In this case, since the first and second blades cannot be separated from the first and second handle portions, there has been a problem that it is very difficult to separate and collect them during recycling. Japanese Patent Application Laid-Open No. 12-611 to solve the above recycling problem
Japanese Unexamined Patent Publication No. 71 has been proposed. In this configuration, first and second handle portions formed separately from each other are fitted to the base end portion of the blade portion, and both are fastened and fixed by screws.

Further, a structure has been proposed as a conventional scissors in which the first and second handle portions can be easily separated by engaging and removing the lock member.

[0006]

However, all of the above-mentioned conventional scissors require a dedicated member for locking, so that there is a problem that the number of parts is increased and the manufacturing cost is increased.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems in the prior art, to reduce the number of parts and to reduce the manufacturing cost, and to facilitate the work of separating the handle during recycling. It is an object of the present invention to provide a handle mounting structure for a rotary manual lever that can be used.

[0008]

According to a first aspect of the present invention, a first handle portion is detachably engaged with a base end of a first operating portion. A first lever member and a second lever member having a second handle portion detachably engaged with a base end portion of the second operating portion, the two lever members being openably and closably connected by a connection shaft at the engagement portions; The gist is that the connecting shaft can be separated.

According to a second aspect of the present invention, in the first aspect, the openable / closable manual device is scissors, and the first handle portion is detachably engaged with a base end of the first blade portion. 1 scissor member and 2nd
A second handle part is detachably engaged with the base part of the blade part.
The gist of the present invention is that the scissor members are connected to each other so that they can be opened and closed by connecting shafts at their engaging portions.

According to a third aspect of the present invention, in the second aspect, an engaging pin is formed integrally with the connecting portion of the first blade portion, and the connecting portion is formed integrally with the tip portion of the first handle portion. An engaging groove and an engaging hole into which the base end and the engaging pin can be removably inserted from the front are formed, and an engaging pin is integrally formed at a base end of the second blade portion. The connecting portion formed integrally with the distal end of the two handle portions is formed with an engaging groove and an engaging hole through which the base end and the engaging pin can be removably inserted from the front.

According to a fourth aspect of the present invention, in the third aspect, a square hole is formed at a base end of the first blade portion, and
A square hole facing the square hole is formed in the connecting portion of the handle, a circular hole is formed in the base end of the second blade portion, and the connecting portion of the second handle corresponds to the circular hole. The cylindrical hole of the shaft main body is inserted into the circular hole, the square columnar portion of the shaft main body is inserted into the square hole, and screwed into the screw hole formed at the tip of the square columnar portion. The first scissor member and the second scissor member are connected to each other by the set screw.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention embodied in scissors will be described below with reference to FIGS.

As shown in FIG. 1, the scissors are constructed by connecting a first scissor member 11 as a first tool member and a second scissor member 12 as a second tool member by a connecting shaft 13 so as to be rotatable. ing. The first scissors member 11 includes a first blade portion 14 as a first operating member made of stainless steel, and a first handle portion 15 connected to a base end of the first blade portion 14. .

A cutting blade 14b is formed at an upper edge of the main body 14a of the first blade portion 14, and a square hole 14d is formed at a base end 14c of the main body 14a. Further, the base end 1
An engagement pin 14e is formed integrally with the end of 4c.

The first handle portion 15 is made of ABS so as to be engaged with a base end portion 14c of the first blade portion 14 and an engagement pin 14e.
It is formed solely and integrally from a synthetic resin material such as a resin. A connecting portion 15b is formed integrally with the front end of the ring portion 15a of the first handle portion 15, and an engagement groove 15c is formed on the inner surface of the connecting portion 15b.
c can be engaged. The width of the engaging groove 15c in the up-down direction is substantially the same as the width of the base end portion 14c in the same direction, and is slidable in the longitudinal direction of the first blade portion 14. A square hole 15d corresponding to the square hole 14d is formed at the center of the engagement groove 15c, and an engagement hole 15e for inserting and locking the engagement pin 14e is formed at the innermost end of the engagement groove 15c. Are formed. A circular recess 15f is formed on the outer surface of the connecting portion 15b so as to correspond to the square hole 15d.

Next, the second blade portion 1 as a second operating portion
The configuration of 6 and the second handle 17 will be described. These two members have substantially the same configuration as the first blade portion 14 and the first handle portion 15, but differ from the first blade portion 14 and the first handle portion 15 are circular holes 16d and 17d corresponding to the square holes 14d and 15d. Is a point. Since other configurations are the same, the main body 16a of the second blade portion 16, the cutting blade 16b, the base end portion 16c, the engagement pin 16
e, the ring portion 17a, the connecting portion 17b, the engaging groove 17c, the engaging hole 17e, and the circular recess 17f of the second handle portion 17 are denoted by the reference numerals, and the description is omitted.

Next, the first and second scissor members 11, 12
Will be described. For example, ABS
The shaft body 18 made of a synthetic resin material such as resin
8a and a flange 18b formed integrally with the outer end thereof
And a rectangular column 18 formed in series with the column 18a.
c and a screw hole 18d formed at the center of the quadrangular columnar portion 18c. A step 18e is formed at the boundary between the columnar portion 18a and the quadrangular columnar portion 18c.

Screw 19 screwed into screw hole 18d
Is composed of a screw portion 19a, a flange portion 19b formed integrally with the outer end of the screw portion 19a, and a groove portion 19c formed on the outer surface of the flange portion 19b.

Next, a method of assembling the scissors configured as described above will be described. First, the proximal end 1 of the first blade 14 with respect to the engaging groove 15c and the engaging hole 15e of the first handle 15 is formed.
4c and the engaging pin 14e are inserted, and the first scissor member 11 is assembled. In this insertion completed state, the square hole 14d on the first blade portion 14 side and the square hole 15d on the first handle portion 15 face each other on the same axis.

Next, the base 16c of the second blade 16 and the engaging pin 16e are inserted into the engaging groove 17c and the engaging hole 17e of the second handle 17, and the second scissor member 12 is assembled. In the insertion completed state, the circular hole 16d on the second blade portion 16 side and the second
The circular hole 17d on the handle 17 side faces the same axis.

Thereafter, as shown in FIG. 4, the first main body 18 of the connecting shaft 13 and the first
The scissor member 11 and the second scissor member 12 are connected. A circular hole 1 in which a single shaft main body 18 is provided in the second blade portion 16 of the second scissor member 12
6d and a circular hole 17d provided in the second handle portion 17 are fitted from the outside, and the cylindrical portions 18a are inserted into the circular holes 16d and 17d,
The flange 18b is engaged with the circular recess 17f. In this state, as shown in FIG. 2, the tip end surface of the columnar portion 18a, that is, the step portion 18e is slightly immersed from the circular hole 16d, and the quadrangular columnar portion 18c is projected outside from the circular hole 16d. The square pillar portion 18c is engaged with the square holes 14d and 15d on the first scissor member 11 side. In this state, FIG.
As shown in the figure, the square columnar portion 18c extends from the outer end of the square hole 15d.
Is slightly immersed.

Next, the screw portion 19a of the screw 19 is screwed into the screw hole 18d of the shaft body 18 from the circular recess 15f of the first handle portion 15, and the flange portion 19b is pressed against the bottom surface of the circular recess 15f. Then, the base end portion 14 located between the flange portion 18b of the shaft body 18 and the flange portion 19b of the screw 19 is formed.
c, 16c and the connecting portions 15b, 17b are tightened at a predetermined pressure. Thus, the scissor assembling operation is completed.

Next, regarding the scissors configured as described above,
The effects are listed together with the configuration. (1) The first scissor member 11 in which the first handle portion 15 is detachably engaged with the base end portion 14c of the first blade portion 14, and the second blade portion 16
The second scissor member 12 having the second handle portion 17 detachably engaged with the base end portion 16c of the second scissor member 16 is connected to the engaging portion so as to be openable and closable by the connection shaft 13. Further, the connecting shaft 13 is configured to be separable by a shaft main body 18 and a screw 19. Therefore, the connecting operation and the separating operation of the first scissor member 11 and the second scissor member 12 can be easily performed. The screw 19 can be easily rotated by, for example, engaging a coin with the groove 19c. When the scissors are discarded, the screw 19 is rotated and removed, and the shaft main body 18 is separated to separate the first handle 15 from the first blade 14 and to remove the second handle 16 from the second blade 16. 17 is pulled away. Therefore, the first metal
And second blade portions 14, 16 and first and second handle portions 1 made of resin
The work of separating and collecting the materials 5 and 17 at the time of recycling can be performed extremely easily. In particular, in this embodiment, the first blade 14, the first handle 15, and the second blade 16 are connected to each other using the connecting shaft 13 that connects the first scissor member 11 and the second scissor member 12.
Since the second handle 17 and the second handle 17 are connected to each other, the number of parts can be reduced and the manufacturing and assembling work can be easily performed.

(2) At the base end portion 14c of the first blade portion 14,
An engagement pin 14e is integrally formed, and an engagement groove 15c into which the base end 14c and the engagement pin 14e can be removably inserted from the front into a connecting portion 15b integrally formed at the distal end of the first handle portion 15. And an engagement hole 15e. An engaging pin 16e is formed integrally with a base end 16c of the second blade portion 16, and a connecting portion 17b formed integrally with a distal end of the second handle 17 is provided with the base end 16c and the engaging portion 16e. An engagement groove 17c and an engagement hole 17e into which the pin 16e can be detachably inserted from the front are formed. Therefore, the first blade portion 14 and the first
The assembling and separating operations of the handle 15 and the second blade 16 and the second handle 17 can be easily performed.

(3) Square holes 14d and 15d are formed in the base end 14c of the first blade 14 and the connecting portion 15b of the first handle 15.
d is formed, and circular holes 16d, 17d are formed in the base end portion 16c of the second blade portion 16 and the connecting portion 17b of the second handle portion 17. The shaft main body 1 is inserted into the two circular holes 16d and 17d.
8 are inserted into the square holes 14d, 15d.
The first scissor member 11 and the second scissor member 12 are inserted into the rectangular body 18c of the shaft main body 18 by screws 19 screwed into screw holes 18d formed at the tip of the square pillar 18c.
Are connected to each other. Accordingly, there is no relative rotation between the connecting portion 15b and the flange portion 19b when the scissors are opened and closed, and the screws 19 screwed into the screw holes 18d are not loosened. Therefore, the first scissor member 11 and the second scissor member 12 can be repeatedly opened and closed about the connecting shaft 13.

The above embodiment may be modified and embodied as follows. -As shown in FIG. 5, the step 18e of the shaft body 18 and the screw 1
9 between the base end portion 14c and the connecting portion 1
5b may be pinched and fixed so that the tightening force of the shaft main body 18 and the screw 19 does not act on the base end portion 16c and the connecting portion 17b.

As shown in FIG. 6, a portion corresponding to the shaft body 18 is integrally formed with the connecting portion 17b of the second handle portion 17, and the base end portions of the second handle portion 17 and the second blade portion 16 are formed. 16c in the axial direction of the shaft main body 18 (the thickness direction of the base end 16c).
It may be performed from. In this case, the number of parts can be further reduced, and the manufacturing and assembling work can be easily performed.

In the above-described embodiment, the blade portion and the handle portion are individually formed and combined by the connecting portions 15b, 17b. Instead, the core metal of the handle portion is provided to the engaging pins 14e, 16e. May be integrally formed, and an annular handle cover connected to the connecting portion 15b may be detachably fitted to the annular portion. This handle cover is also included in the present invention as a part of the handle.

The present invention may be applied to a hand-held device other than scissors or a nipper or the like. Technical ideas other than the claims grasped from the embodiment will be described below.
(Technical Thought 1) The shaft body 1 according to any one of claims 2 to 4, wherein the connecting shaft 13 has a screw hole 18d.
8 and a screw 19 having a screw portion 19a screwed thereto
And the shaft body 18 is a structure for attaching a handle portion of scissors formed integrally with one handle portion.

[0030]

As described in detail above, the inventions according to claims 1 to 4 can reduce the number of parts, facilitate the production and assembly work, and facilitate the separation of the handle during recycling. Can be done.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment in which the present invention is embodied in scissors.

FIG. 2 is an enlarged sectional view of a connecting shaft.

FIG. 3 is an exploded perspective view of scissors.

FIG. 4 is a perspective view in which a connecting shaft of scissors is separated.

FIG. 5 is a partial cross-sectional view showing another example of the connection shaft.

FIG. 6 is a partial cross-sectional view showing another example of the connection shaft.

[Explanation of symbols]

Reference numeral 11 denotes a first scissor member as a first tool member, 12 a second scissor member as a second tool member, 13 a connecting shaft, 14.
1st blade part as an operation part, 14c ... base end part, 14d, 1
5d: square hole, 14e, 16e: engagement pin, 15: first
Handle portion, 15b, 17b connecting portion, 15c, 17c engaging groove, 15e, 17e engaging hole, 16 second blade portion as second operating portion, 16c base end portion, 16d, 17d circle Hole,
17: second handle portion, 18: shaft body, 18a: columnar portion, 1
8c: square pillar portion, 18d: screw hole, 19: screw.

Claims (4)

[Claims] 1. A base portion (14c) of a first operating portion (14).
A first handle member (11) in which a first handle portion (15) is detachably engaged with the first handle portion (15), and a proximal end portion (16) of a second operating portion (16).
c) the second handle portion (17) is detachably engaged with the second handle portion (17).
The connecting member (12) is connected to the lever member (12) so as to be openable and closable by a connecting shaft (13) at an engagement portion thereof.
The handle mounting structure of the open / close type hand-operated tool, wherein the handle can be separated. 2. The openable hand-operated scissors according to claim 1, wherein the hand-operated hand-operated scissors are scissors, and a first blade (14) is provided at a base end (14c) thereof.
A first scissor member (1) having a handle (15) detachably engaged therewith.
1) and a second scissor member (1) in which a second handle (17) is detachably engaged with a base end (16c) of the second blade (16).
2) and a handle portion mounting structure of scissors in which the engaging portions are openably and closably connected by a connecting shaft (13). 3. An engaging pin (14e) is formed integrally with a base end (14c) of the first blade portion (14), and is provided at a distal end of the first handle portion (15). An engagement groove (15c) and an engagement hole (15e) into which the base end (14c) and the engagement pin (14e) can be removably inserted from the front are formed in the integrally formed connecting portion (15b). An engagement pin (16e) is provided at the base end (16c) of the second blade (16).
The base end (16c) and the engaging pin (16e) can be removably inserted from the front into the connecting portion (17b) integrally formed at the distal end of the second handle portion (17). A handle mounting structure for scissors in which an engaging groove (17c) and an engaging hole (17e) are formed. 4. The first blade portion (1) according to claim 3,
A square hole (14d) is formed at the base end (14c) of (4), and a square hole (15d) facing the square hole (14d) is formed at the connecting portion (15b) of the first handle (15). Formed,
A circular hole (1) is formed at the base end (16c) of the second blade (16).
6d) is formed, and the connecting portion (17) of the second handle portion (17) is formed.
b) a circular hole (17d) corresponding to the circular hole (16d);
The cylindrical portion (18a) of the shaft body (18) is inserted into the circular holes (16d, 17d), and the square hole (1) is formed.
4d and 15d) have square pillar-shaped portions (18) of the shaft body (18).
c) is inserted, and the first scissor member (11) and the second scissor member (12) are mutually connected by a screw (19) screwed into a screw hole (18d) formed at the tip of the square pole portion (18c). The mounting structure of the handle of the connected scissors.