JP2006291985A - Knob for screw - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and positively insert-fit bolts different in size, in a knob for a screw used as a handle or the like for an adjusting part in various equipment using a bolt and a nut (hereinafter simply referred to as a bolt) on the market, while preventing the knob from becoming bulky more than necessary. <P>SOLUTION: The knob for the screw is composed of: a knob body 2 holding the inserted bolt 20 to be unrotable; a cap body 3 detachably mounted to the knob body 2 to prevent the bolt 20 from slipping off; and a spacer body 4 detachably provided between the knob body 2 and a bolt 20 smaller in size than the bolt 20 held to the knob body 2, to hold the bolt 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an improvement in a screw knob used as a handle of an adjusting portion in various devices using, for example, a commercially available bolt or nut (hereinafter sometimes simply referred to as a bolt).

  Conventionally, as this kind of screw knob, for example, those described in Patent Documents 1 to 4 are known.

Japanese Utility Model Publication No.57-20891 Japanese Utility Model Publication No.59-34737 JP 2004-125128 A JP 2004-132442 A

However, in principle, any conventional one can only handle one type of bolt, and bolts of different sizes cannot be shared by a single knob.
By the way, in the specification of Patent Document 4, it is described that the concave hole can be a stepped shape adapted to a plurality of bolt sizes, and bolts of several sizes can be handled with a kind of knob. However, since it had to be a stepped hole, the thickness of the knob increased accordingly, and there was a drawback that it was bulky.

  The present invention was devised in view of the above-mentioned problems, and was devised to solve this problem. The problem is that a bolt with a different size can be easily and reliably inserted and is not bulky more than necessary. It is in providing the screw knob made like this.

  The screw knob according to the present invention basically includes a knob body that can be bolted to hold it around, a cap body that can be detachably attached to the knob body to prevent the bolt from being held, and a knob body that holds the knob. A feature resides in that the spacer body is detachably provided between the knob body and the knob body so as to hold a bolt having a size smaller than the bolt to be provided.

When the spacer body is detached from the knob main body, the bolt is inserted into the knob main body and held around. The cap body is inserted into the knob body to prevent the bolt from coming off. In this way, a large bolt can be provided with a knob.
When the spacer body is inserted into the knob body, a bolt having a size smaller than the bolt held by the knob body can be held on the knob body via the spacer body.
In short, bolts of different sizes can be inserted into the knob body by detaching the spacer body from the knob body.

  The spacer body is preferably composed of a plurality of elements and is formed in a nested manner to hold bolts of different sizes. In this way, it is possible to deal with three or more types of bolts of different sizes, and yet it is not bulky.

  The spacer body includes a holding portion that stops and holds the bolt and an insertion portion that allows the bolt to pass therethrough, and the insertion portion of the small-sized spacer body is formed to be long to protrude from the insertion portion of the large-sized spacer body. Is preferred. In this way, when the insertion parts of a plurality of nested spacer bodies are pressed against a desk or the like, they can be removed in order from the smaller size spacer bodies, and this kind of separation is possible without using tools. Work can be done easily.

According to the present invention, the following excellent effects can be achieved.
(1) Consists of a knob body, a cap body, and a spacer body, and in particular, a spacer body is detachably provided between the knob body and the bolt body to hold a bolt of a size smaller than that of the knob body. Bolts of different sizes can be easily and reliably inserted and are not bulky more than necessary.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a longitudinal front view showing a state in which the smallest bolt is inserted according to the screw knob of the present invention. FIG. 2 is a longitudinal front view showing only the knob body. FIG. 3 is a plan view of FIG. FIG. 4 is a longitudinal front view showing only the cap body. FIG. 5 is a bottom view of FIG. FIG. 6 is a longitudinal front view showing a state in which large, medium and small spacer bodies are combined in a nested manner. FIG. 7 is a plan view of FIG. FIG. 8 is a perspective view showing a state in which large, medium, and small spacer bodies are detached. FIG. 9 is a longitudinal front view showing a state in which all the spacer bodies are detached and the largest bolt is inserted. FIG. 10 is a longitudinal front view showing a state in which only a small spacer body is detached and a nut that is screwed into a third largest bolt is inserted.

  The main part of the screw knob 1 is composed of a knob body 2, a cap body 3, and a spacer body 4, and is used as, for example, a handle of an adjustment section in various devices.

The knob body 2 can be inserted and held by a bolt 20. In this example, the knob body 2 is formed on the outside and formed in the center with a gripping portion 5 having a substantially pentagonal shape for gripping by hand. An insertion portion 6 having a circular shape for inserting the cap body 3 and a hexagonal shape formed concentrically below the cap body 3 to hold the head 21 of the bolt 20 and the nut 30 are provided. The holding part 7, the insertion part 8 formed concentrically below this and having a circular shape for inserting the shaft part 22 of the bolt 20, and the inner part of the holding part 6 are formed to penetrate therethrough. It is provided with a plurality of (three every approximately 120 degrees) engaging portions 9 and is manufactured by integral molding of a polyamide-based synthetic resin that is strong in impact and excellent in wear resistance.
Thus, the holding portion 7 and the insertion portion 8 of the knob body 2 have dimensions corresponding to the large size bolt 20 (hexagonal bolt “M12”).

  The cap body 3 is detachably attached to the knob body 2 so as to prevent the bolt 20 from being detached. In this example, the cap section 3 has a bottomed cylindrical shape that is fitted into the holding section 6 of the knob body 2. A cylindrical portion 11 that is concentrically protruded from the inner center of the bolt 20 and presses the head 21 and the nut 30 of the bolt 20, and the knob body 2 is formed on the periphery of the plate portion 10. A plurality of (three approximately every 120 degrees) engaging claws 12 that are hook-shaped (substantially L-shaped) engaged with the stoppers 9 and a kerf formed on the periphery of the dish part 10 sandwiching them. 13 and is manufactured by integral molding of a polypropylene-based synthetic resin.

The spacer body 4 is detachably provided between the knob body 2 and the knob body 2 so as to hold the bolt 20 having a size smaller than that of the bolt 20 held by the knob body 2. In this example, the spacer body 4 includes a plurality of pieces. A small-sized spacer having a nesting type to hold the bolts 20 of different sizes, a holding part 14 for stopping and holding the bolts 20, and an insertion part 15 for inserting the shaft part 22 of the bolts 20. The insertion part 15 of the body 4 is formed long so as to protrude from the insertion part 15 of the spacer body 4 having a large size.
Specifically, the spacer body 4 is composed of large, medium, and small ones, and each is manufactured by integral molding of a polyamide-based synthetic resin.
The large spacer body 4A is made to correspond to the largest bolt 20 (hexagonal bolt “M12”) so that the outside of the holding portion 14A and the insertion portion 15A can be fitted to the holding portion 7 and the insertion portion 8 of the knob body 2. At the same time, the second largest bolt 20 (hexagonal bolt “M10”) on the inside of the holding portion 14A and the insertion portion 15A is adapted to be fitted thereto.
The middle spacer body 4B corresponds to the second largest bolt 20 (hexagonal bolt “M10”) so that the outside of the holding portion 14B and the insertion portion 15B can be fitted to the holding portion 14A and the insertion portion 15A of the large spacer body 4A. In addition, the inner side of the holding portion 14B and the insertion portion 15B is made to correspond to the third largest bolt 20 (hexagonal bolt “M8”).
The small spacer body 4C is made to correspond to the third largest bolt 20 (hexagonal bolt “M8”) so that the outside of the holding portion 14C and the insertion portion 15C is fitted to the holding portion 14B and the insertion portion 15B of the intermediate spacer body 4B. In addition, the inside of the holding portion 14C and the insertion portion 15C is made to correspond to the smallest bolt 20 (hexagonal bolt “M6”).
Thus, these large, medium, and small spacer bodies 4A, 4B, and 4C are combined in a nested manner as shown in FIG. 6, and the holding portion 14A and the intermediate spacer of the large spacer body 4A after the combination are assembled. The upper surfaces of the holding portion 14B of the body 4B and the holding portion 14C of the small spacer body 4C are flush with each other. In addition, the insertion portion 15B of the middle spacer body 4B protrudes slightly below the insertion portion 15A of the large spacer body 4A, and the insertion portion 15C of the small spacer body 4C is slightly smaller than the insertion portion 15B of the middle spacer body 4B. It protrudes downward.

Next, the operation will be described based on such a configuration.
FIG. 1 shows a case where the smallest bolt 20 (hexagonal bolt “M6”) is provided with a knob to form a so-called knob bolt. In this case, the large, medium, and small three spacer bodies 4A, 4B, and 4C are nested and integrated as shown in FIGS. 6 and 7, and the spacer body 4A is inserted into the holding portion 7 and the insertion portion of the knob body 2. 8 is fitted. Thereafter, the smallest bolt 20 (hexagonal bolt “M6”) is inserted and fitted inside the holding portion 14C and the insertion portion 15C of the small spacer body 4C, and the dish portion 10 of the cap body 3 is connected to the knob body 2. The engaging claw 12 of the cap body 3 is engaged with the engaging portion 9 of the knob body 2. At this time, the smallest bolt 20 (hexagonal bolt “M6”) is retained by the cap body 3 because the cylindrical portion 11 of the cap body 3 is brought into contact with the head 21 thereof.

  If only the small spacer body 4C is detached from the state of FIG. 1, the third largest bolt 20 (hexagonal bolt “M8”) can be provided with a knob. In this case, the third largest bolt 20 (hexagon bolt “M8”) is inserted and fitted inside the holding portion 14B and the insertion portion 15B of the intermediate spacer body 4B.

  If the small spacer body 4C and the middle spacer body 4B are detached from the state of FIG. 1, the second largest bolt 20 (hexagonal bolt “M10”) can be provided with a knob. In this case, the second largest bolt 20 (hexagon bolt “M10”) is inserted and fitted inside the holding portion 14A and the insertion portion 15A of the large spacer body 4A.

  FIG. 9 shows a case where the largest bolt 20 (hexagonal bolt “M12”) is provided with a knob. In this case, all the spacer bodies 4 are detached from the knob main body 2, and the largest bolt 20 (hexagonal bolt “M12”) is inserted into the holding portion 7 and the insertion portion 8 of the knob main body 2 to be fitted. Is done.

  FIG. 10 shows a case in which a nut 30 (hexagon nut “M8”) screwed into the third largest bolt 20 (hexagon bolt “M8”) is provided with a knob to form a so-called knob nut. In this case, only the small spacer body 4C is detached, and the third largest nut 30 is fitted inside the holding portion 14B of the middle spacer body 4B. The bolt 20 (hexagonal bolt “M8”) is inserted into the insertion portion 8B of the intermediate spacer body 4B, and after being screwed into the nut 30 (hexagonal nut “M8”), is positioned in the cylindrical portion 11 of the cap body. The Therefore, the tightening margin of the bolt 20 (hexagonal bolt “M8”) can be increased.

  In short, bolts 20 having different sizes can be inserted into the knob body 2 by attaching / detaching the spacer body 4 to / from the knob body 2.

Since the spacer body 4 is composed of a plurality (three), it can correspond to three or more (four) different sizes of bolts 20.
Since the spacer body 4 is formed in a nested manner to hold the bolts 20 of different sizes, the spacer body 4 does not become bulky in the height direction as compared with the case where the knob body 2 is formed with a stepped hole.

  As shown in FIG. 6, the spacer body 4 includes a holding portion 14 that stops and holds the bolt 20 and an insertion portion 15 that allows the bolt 20 to pass therethrough. Since it is formed long so as to protrude from the insertion part 15 of the body 4, when the insertion parts 15 of the plurality (three) of the nested spacer bodies 4 are pressed against a desk or the like, the spacer bodies 4 in order from the smallest size You can withdraw. As a result, the separation work can be easily performed without using a tool.

  When replacing the bolt 20 or the nut 30, the tip of a minus driver or the like is inserted into the gap between the cap body 3 where the locking claw 12 is located and the knob body 2, and the locking claw 12 is pushed inward to lock. This is performed after releasing the engagement with the portion 9 and detaching the cap body 3 together with the tip of a minus driver or the like.

Since the engaging claw 12 of the cap body 3 is engaged with the engaging portion 9 of the knob body 2, the cap body 3 is not easily detached from the knob body 2, and the cylindrical portion 11 of the cap body 3 is removed. Thus, the bolt 20 and the nut 30 can be more reliably prevented from coming off.
Since the engagement between the locking claw 12 and the locking portion 9 can be released very easily by using a flathead screwdriver or the like, the bolt 20, the nut 30 and the cap body 3 can be replaced without damaging the cap body 3. It can be done easily.
Since the bolt 20 and the nut 30 are prevented from coming off via the tube portion 11 of the cap body 3, a large margin can be obtained when used as a knob nut, which is very convenient in using the knob nut.

  In the above example, the number of the spacer bodies 4 is three. However, the number of the spacer bodies 4 is not limited to this. For example, the number may be other than this.

The front view which concerns on the knob for screws of this invention, and shows the state which inserted the smallest volt | bolt. The longitudinal section front view which shows only a knob main body. The top view of FIG. The longitudinal front view which shows only a cap body. The bottom view of FIG. The longitudinal cross-sectional front view which shows the state which combined the large, medium, and small spacer bodies in the nested form. The top view of FIG. The perspective view which shows the state which detached | separated the large-medium-small spacer body. The longitudinal cross-sectional front view which shows the state which removed all the spacer bodies and inserted the largest volt | bolt. The longitudinal cross-sectional front view which shows the state which detached | separated only the small spacer body and inserted the nut screwed together with the 3rd largest bolt.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Knob for screws, 2 ... Knob body, 3 ... Cap body, 4 ... Spacer body, 4A ... Large spacer body, 4B ... Medium spacer body, 4C ... Small spacer body, 5 ... Holding part, 6 ... Insertion part, DESCRIPTION OF SYMBOLS 7 ... Holding part, 8 ... Insertion part, 9 ... Locking part, 10 ... Dish part, 11 ... Cylinder part, 12 ... Locking claw, 13 ... Groove, 14 ... Holding part, 15 ... Insertion part, 20 ... Bolt 21 ... head, 22 ... shaft, 30 ... nut.

Claims (3)

A knob body that can be bolted to hold it around, a cap body that can be detachably attached to the knob body to prevent the bolt from being removed, and a bolt that is smaller than the bolt that is held by the knob body. A screw knob characterized by comprising a spacer body detachably provided between the knob body and the knob body. The screw knob according to claim 1, wherein the spacer body is formed of a plurality of members and is nested to hold bolts of different sizes. The spacer body includes a holding portion that stops and holds the bolt and an insertion portion that allows the bolt to pass therethrough, and the insertion portion of the small-sized spacer body is formed to be long to protrude from the insertion portion of the large-sized spacer body. The screw knob according to claim 2.

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