JP3223429U - Screw holder for screwdriver - Google Patents

Abstract

A screw holder for a driver having good workability is provided. A screw holder 40 is mounted on a shaft 17 of a driver, holds a screw 12, is formed in a cylindrical shape, and is transparent. The screw holder is elastically deformed in the radial direction, and includes a fitting portion 31 and a holding portion 42. A driver shaft is fitted into the fitting portion. The holding portion is formed integrally with the fitting portion at one end of the fitting portion, and holds the screw head 22 in the hollow portion. It is preferable that the holding portion has an inner diameter gradually increasing toward the tip. [Selection] Figure 6

Description

  The present invention relates to a screw holder for a driver that is attached to a driver and holds a screw.

  When electrical work or the like is performed, for example, members may be fixed by tightening screws (including screws) using a screwdriver. In such a case, the worker often works with one hand. Therefore, there is a demand for holding the screw at the tip of the driver until the screw is inserted into the screw hole (screw hole).

  In response to this requirement, there are so-called magnet drivers in which a magnetic material is used at the tip of the shaft, and magnetic supports that are provided at the tip of the driver shaft and attract and hold the screw by magnetism. However, such a method of holding a screw by using magnetism can be used only for a screw formed of a part of metal that can be attached by magnetism.

  On the other hand, Patent Document 1 describes a screw catch attachment of a tube body made of a flexible material having an insertion hole in which a tip of a driver is removably formed. This screw catch attachment consists of a taper with the upper end side of the insertion hole increasing in diameter toward the upper end in a tapered shape. The screw head is attached to the bottom end side of the insertion hole and the diameter is increased by a small pressing force. A head holding part is formed.

  Patent Document 2 describes a screw catch jig for a driver of a tube body made of a flexible elastic material that can be inserted into a head of a driver shaft and held elastically. This screw catch jig is formed with the tip part as a fitting part of the screw head, and it is easy to hold the insertion on the head of the driver shaft, and a small-diameter neck part that holds the head near the tip is formed. It is. In Patent Document 3, a screw holder for a driver is formed in which a plurality of elastic claws are formed by inserting an interrupt 2 from a tip edge into a cylinder having a length shorter than that of a driver shaft, which is detachably inserted into a driver shaft. Has been. This screw holder is provided with a concave groove in which the outer peripheral portion of the screw head is detachably fitted in the periphery of the tip portion of the claw.

Japanese Patent Laying-Open No. 2015-199185 Japanese Utility Model Publication No. 7-011276 Japanese Utility Model Publication Sho 62-065173

  During the tightening of the screw, that is, between the start of tightening the screw and the end of tightening, the tip of the driver may come off the groove on the head of the screw. In such a case, it is necessary to reinsert the tip of the driver into the groove on the head of the screw. However, the screw catch attachment of Patent Document 1, the screw catch jig of Patent Document 2, and the screw holder described in Patent Document 3 re-groove the tip of the screwdriver that has come off the groove of the screw head. Since it is difficult to align the position for insertion, the work cannot be done quickly and the workability is poor. Also, when loosening and removing a screw that has been tightened, it is difficult to align the tip of the driver with the groove on the screw head, resulting in poor workability.

  Then, an object of this invention is to provide the screw holder for drivers with good workability | operativity.

In order to solve the above problems, the present invention is a screw holder for a driver that is formed in a cylindrical shape, is transparent, and elastically deforms in a radial direction, and is fitted with a fitting portion on which a driver shaft is fitted. A holding portion that is formed integrally with the fitting portion at one end of the portion and holds the head of the screw in the hollow portion.

  The holding part is preferably elastically deformed in the longitudinal direction of the screw holder for the driver.

  The tip of the holding part is preferably divided in the circumferential direction.

  It is preferable that the holding portion has an inner diameter that gradually increases toward the tip. The inner diameter of the holding part may increase gradually as it goes toward the tip, or may increase gradually in steps.

  The holding part is also preferable when the inner diameter gradually decreases toward the tip.

  The holding part preferably has a thickness that gradually increases toward the tip.

  The screw holder is preferably formed of an elastomer.

  According to the present invention, workability such as screw tightening is good.

It is explanatory drawing of the screw holder which is one Embodiment of this invention, (A) is explanatory drawing of the state holding the screw, (B)-(D) is explanatory drawing of the non-holding state which is not holding the screw. It is. It is a partial cross section top view of a screw holder. It is explanatory drawing of a screw holder. It is explanatory drawing of the screw fastening using a screw holder. It is a partial cross section top view of the screw holder which is another embodiment. It is explanatory drawing of a screw holder. It is a partial cross section top view of the screw holder which is another embodiment. It is a partial cross section top view of the screw holder which is another embodiment. It is a partial cross section top view of the screw holder which is another embodiment.

[First Embodiment]
A screw holder for driver 10 (hereinafter, simply referred to as “screw holder”) 10 shown in FIG. 1 is an example of an embodiment of the present invention, and is used by being attached to a driver 11 to hold a screw 12. The driver 11 includes a grip portion 16 and a shaft 17, and the shaft 17 and the grip portion 16 are fixed. The shaft 17 includes a shaft body 18 having a constant diameter and a tip portion 19 that changes so as to become flat toward the tip 17t. Thus, the driver 11 is a minus driver. However, the driver 11 is not particularly limited as long as it is a screw driver such as a plus driver with a cross at the tip (cross screwdriver) or a hexagon driver, and is appropriately selected depending on the type of the screw 12. The driver 11 is manually rotated to tighten or loosen the screw, but may be an electric driver (electric screw driver) that rotates the shaft electrically.

  The screw 12 is a male screw, and includes a columnar shaft 21 and a head 22 provided at one end of the shaft 21, and a screw thread is formed on the shaft 21. A groove (not shown) is formed on the surface of the head 22 opposite to the shaft 21, and the tip 17 t of the driver 11 shown in FIG. 1B is inserted into this groove. When the driver 11 rotates in this state, the screw 12 is tightened, and for example, the first member M1 is fixed to the second member M2. The screw 12 is an example of a screw (including a screw) that is held by the screw holder 10 and may be a male screw (including a screw) having another shape such as a screw having a head having a shape different from that of the head 22. .

  When the screw holder 10 mounted on the shaft 17 of the driver 11 holds the screw 12, as shown in FIG. 1A, the hollow portion of the protruding portion is in a state protruding from the tip 17t. At least the head 22 of the screw 12 is held. The screw holder 10 is slidably provided along the longitudinal direction of the shaft 17 of the driver 11. When the screw holder 10 does not hold the screw 12, for example, while the screw tightening operation is stopped, as shown in FIG. 1B, the screw holder 10 moves toward the base end of the shaft 17, that is, the grip portion 16 side. It is configured so that it can be distributed.

  In the example of FIG. 1 (B), one end of the screw holder 10 on the tip 17t side is moved to the grip portion 16 side, and the other end on the grip portion 16 side is also gripped by the same distance as the one end. It is moved to the part 16 side. However, the other end on the grip 16 side may not be moved, or may be moved at a distance smaller than the one end. For example, as shown in FIG. 1C, the screw holder 10 may be lifted up. The part to be beaten up may be a part or the whole of the screw holder 10 in the longitudinal direction (see FIG. 2). Moreover, as shown to (D) of FIG. 1, you may turn up the said one end side. As shown in (B) to (D) of FIG. 1, in the non-holding state in which the screw 12 is not holding the screw 12, the one end is gripped 16 with the shaft 17 fitted in the hollow portion. It is configured so that it can be positioned close to the side.

  The screw holder 10 is formed in a cylindrical shape as shown in FIG. 2 and elastically deforms in the radial direction. The screw holder 10 has an inner diameter d that is constant in the longitudinal direction. In this example, the outer diameter D and the thickness T are constant in the longitudinal direction. However, the outer diameter D and the thickness T may each change in the longitudinal direction. Note that, in FIGS. 1, 2 and the subsequent drawings, the thickness T is greatly exaggerated with respect to the inner diameter d. The thickness T of the screw holder 10 is not particularly limited, but is preferably in the range of 0.7 mm to 2.0 mm. When the thickness T is 0.7 mm or more, the screw 12 is more securely held than when it is less than 0.7 mm, and when it is 2.0 mm or less, it is more elastic than when it exceeds 2.0 mm. The effect of deformation appears more reliably. The thickness T is more preferably in the range of 0.8 mm to 1.8 mm, and still more preferably in the range of 0.9 mm to 1.5 mm. In this example, it is approximately 1.0 mm.

  When the length of the tip end portion 19 of the shaft 17 of the driver 11 is L19 (see FIG. 1B), the length L10 of the screw holder 10 is a driver that is manually turned by the driver to be used as in this example. In this case, it is preferably within the range of L19 × 1.1 or more and L19 × 2.8 or less. When the length L10 is equal to or greater than L19 × 1.1, the screw holder 10 is removed from the shaft 17 of the driver 11 when the screw 12 that is tightened is loosened, for example, as compared with the case where the length L10 is less than L19 × 1.1. It is harder to come off. In addition, when the length L10 is L19 × 2.8 or less, the screw holder 10 is moved toward the grip 16 as shown in FIG. When arranged, the screw holder 10 is not easily obstructed. The length L10 is more preferably in the range of L19 × 1.75 to L19 × 2.25, and more preferably in the range of L19 × 1.85 to L19 × 2.15. In addition, the code | symbol L18 shown in FIG. 1 (B) is the length of the shaft main body 18 of the shaft 17 of the driver 11.

  The screw holder 10 includes a fitting portion 31 in which the shaft 17 of the driver 11 is fitted into the hollow portion, and a holding portion 32 that holds the head portion 22 of the screw 12 in the hollow portion. The holding part 32 is formed integrally with the fitting part 31 at one end of the fitting part 31. As described above, the screw holder 10 is mounted on the driver 11 and is a cylindrical driver mounting tool in which one end side in the longitudinal direction is the fitting portion 31 and the other end side is the holding portion 32, and is elastic in the radial direction. Deform. In addition, it is preferable that the fitting part 31 is formed so that the internal diameter d is smaller than the shaft 17 of the driver 11, and this is also the case in this example.

  As shown in FIG. 3, the holding portion 32 that elastically deforms in the radial direction presses the head portion 22 of the screw 12 on the inner wall, thereby holding the head portion 22 of the screw 12 in the hollow portion. In this way, the entire screw 12 is held in a stable posture on the extension of the shaft 17 of the driver 11.

  The screw holder 10 is transparent, and the hollow portion, that is, the inside can be seen through from the outside. In this example, both the fitting part 31 and the holding part 32 are made of a transparent material, and are made of the same material. However, the fitting part 31 and the holding | maintenance part 32 may be formed with a mutually different material. The screw holder 10 may be colored as long as it is transparent. Further, the screw holder 10 may be regarded as transparent as long as the tip 17t of the shaft 17 of the driver 11 and the screw 12 in the hollow portion are visible to the outside, and may be somewhat cloudy.

  The screw holder 10 is preferably formed of an elastomer as an elastically deformable material, and is also formed of an elastomer in this example. The elastomer is a polymer (polymer) having elasticity. The elastomer may be a thermosetting elastomer or a thermoplastic elastomer. As a thermosetting elastomer, a silicone type elastomer (silicone rubber) etc. are mentioned as a transparent thing, for example. Examples of the thermoplastic elastomer include transparent ones such as a styrene elastomer, an acrylic elastomer, an olefin elastomer, a vinyl chloride elastomer, and an ester elastomer. In this example, a silicone elastomer is used.

  Since the screw holder 10 is formed of a material that is elastically deformed, the holding portion 32 is also elastically deformed in the longitudinal direction of the screw holder 10.

  It is preferable that the tip of the holding part 32 is divided in the circumferential direction. In this example, as shown in FIG. 2, the holding portion 32 is divided into three in the circumferential direction by a cutting line (cut line) 36 extending in the longitudinal direction of the screw holder 10. However, it is not limited to three divisions, and may be divided into two or four or more. When a plurality of cutting lines are formed, the plurality of cutting lines 36 are preferably formed at equal intervals in the circumferential direction as shown in FIG. In addition, the cutting line 36 is formed in the full length area | region of the holding | maintenance part 32 in the longitudinal direction of the screw holder 10, and the full length area | region of the holding | maintenance part 32 is divided | segmented in the circumferential direction. Thus, when at least one of the inner diameter d and the outer diameter D of the holding portion 32 is constant in the longitudinal direction of the screw holder 10, it corresponds to the length region in which the cutting line 36 is formed. The area to be processed is regarded as the holding unit 32.

  The operation of the above configuration will be described. The shaft 17 of the driver 11 is inserted into the hollow portion from the fitting portion 31 side of the screw holder 10. Since the screw holder 10 is elastically deformed in the radial direction, the shaft 17 is easily inserted into the driver 11. The screw holder 10 is arranged in a state in which the tip of the holding portion 32 protrudes from the tip 17t of the shaft 17 of the driver 11. Specifically, the tip of the holding part 32 is projected beyond the thickness of the head 22 of the screw 12. The screw 12 is inserted into the hollow portion at the tip of the protruding holding portion 32 from the head 22 side.

  Since the screw holder 10 is elastically deformed in the radial direction, the screw holder 10 can be easily attached to and detached from the shaft 17 of the driver 11, and can be easily slid in the longitudinal direction of the shaft 17 while being attached to the shaft 17. Therefore, the screw holder 10 can be quickly and easily disposed at the target position of the shaft 17 when the screw tightening is started, and also when the screw tightening is finished, as shown in FIG. It is easy to move toward the base end of the shaft 17 and can quickly move to the next operation. In some work situations, it may be desired to expose the shaft 17 of the driver 11, and in that case, the screw holder 10 can be easily and quickly removed from the shaft 17. Therefore, workability such as start and end of screw tightening and a series of workability including other work are good. In addition, since the screw holder 10 is formed of an elastomer, it has excellent insulating properties. When the screw holder 10 is arranged close to the base end, it functions as an insulating cover in situations other than tightening or loosening the screws. Furthermore, since the thickness T is kept small as described above, even if the screw hole into which the screw 12 is tightened has a very small diameter or the screw hole is in a narrow place, for example, the screw 12 Can be easily locked. According to this configuration, even the non-magnetic screw 12 is securely held.

  Since the fitting portion 31 is elastically deformed in the radial direction, the driver 11 to be attached has a degree of freedom and can be attached to the driver 11 of the shaft 17 having various thicknesses. The fitting portion 31 has an inner diameter d smaller than the shaft 17 of the driver 11, and the shaft 17 is fitted in a state where the inner diameter d is expanded by elastic deformation. Therefore, the shaft 17 is difficult to move in the fitting portion 31 in the longitudinal direction. For example, even if the driver 11 is pulled away from the screw 12 after tightening the screw, the screw holder 10 is not easily removed from the shaft 17. Further, since the holding portion 32 is also elastically deformed in the radial direction in the same manner as the fitting portion 31, the holding portion 32 can correspond to the head 22 having various diameters, and in addition to the screw 12 having substantially the same diameter as the shaft 17, Even the screw 12 including the head portion 22 having a diameter larger than the diameter of the shaft 17 can be held. For this reason, workability is good even when the screws 12 of different sizes are tightened or loosened sequentially.

  Since the holding portion 32 is elastically deformed in the radial direction, it is easy to insert and set the screw 12 and to take out the held screw 12 and to improve workability.

  Since the screw holder 10 is transparent, the tip of the driver 11 and the screw 12 are visually recognized from the outside. For example, when the screw 12 is tightened, the position and state of the screw 12 are external to the screw holder 10. It is confirmed. Therefore, even if the tip 17t of the driver 11 is detached from the groove (not shown) of the head 22 before the screw 12 is tightened to the target position, the alignment to the groove can be performed easily and quickly. Good workability. In addition, during the work of loosening the attached screw, it is easy to align the tip of the driver 11 and the groove of the head portion 22 of the screw 12, so that the workability when removing the screw is good.

  Since the holding portion 32 is elastically deformed in the longitudinal direction of the screw holder 10, when the screw 12 is tightened, the first member M1 is fixed to the first member M1 in this example, as shown in FIG. As the tip abuts and the screw 12 is tightened, it is lifted up or turned up. Therefore, the screw 12 is securely tightened to the target position with good workability. Furthermore, even in the case of a screw hole with a small diameter, the tip of the holding part 32 is lifted up or turned up, so that the driver operation is good without being disturbed. Further, when the screw 12 that has already been tightened is pulled out, the tip end of the holding portion 32 is abutted and lifted or turned up. And the screw 12 can be loosened. Further, since the elastically deformed holding portion 32 returns to its original shape, at least the head portion 22 of the removed screw 12 is reliably caught by the holding portion 32, and the screw 12 is held.

  Since the tip of the holding portion 32 is divided in the circumferential direction, not only the screw having the head 22 having the diameter substantially the same as the diameter of the shaft 17 but also the screw 12 having the head 22 having a diameter larger than the diameter of the shaft 17. Even so, the screw 12 having the head portion 22 having a larger diameter can be held as compared with the case where the head 22 is not divided in the circumferential direction. For example, in this example, it has been confirmed that even the screw 12 having the head 22 having a diameter substantially the same as the diameter of the shaft 17 and about three times the diameter of the shaft 17 can be held.

  Since the tip of the holding portion 32 is divided in the circumferential direction, when the screw 12 is tightened, as shown in FIG. 4, the tip of the holding portion 32 that is in contact with the first member M1 is more reliably lifted. Or turn up. Therefore, the screw 12 is securely tightened with good workability. Further, since the cutting lines 36 are formed at equal intervals in the circumferential direction, the tip of the holding portion 32 that is in contact with the first member M1 extends radially outward from the center of the circular cross section, and the screw 12 is the first. It is difficult to tilt with respect to the screw hole of the member M1. Further, when the screw 12 that has already been tightened is pulled out, the tip of the holding portion 32 is more reliably lifted or turned up, so that the tip 17t of the shaft 17 of the driver 11 is grooved in the head 22 of the screw 12. And the screw 12 can be loosened. In addition, since the elastically deformed holding portion 32 that has been beaten up or turned back returns to its original shape, at least the head portion 22 of the screw 12 that has been loosened and removed is reliably caught by the holding portion 32. Since the tip of the holding part 32 is divided in the circumferential direction and is easy to spread, the screw 12 held by the holding part 32 can be quickly and reliably recovered from the screw holder 10 with one hand, for example, and the workability is very good. In addition, it is good to lengthen the cutting line 36, so that the diameter of the head 22 of the screw 12 to be held is larger.

[Second Embodiment]
In said 1st Embodiment, although the internal diameter of the holding | maintenance part 32 is made constant in the longitudinal direction of the screw holder 10, you may increase gradually toward the front-end | tip. In FIG. 5, the screw holder 40 includes a fitting part 31 and a holding part 42. In FIG. 5, the same members as those in FIGS. 1 to 4 are denoted by the same reference numerals as in FIGS. The holding part 42 is formed of the same material as that of the holding part 32, is formed integrally with the fitting part 31 at one end of the cylindrical fitting part 31, and goes from the fitting part 31 side toward the tip. , A cylindrical member having an inner diameter d continuously increasing gradually. In FIG. 5, for convenience of explanation, the gradually increasing degree of the inner diameter d, that is, the inclination of the inner wall with respect to the longitudinal direction of the screw holder 40 is drawn greatly exaggerated.

  In this example, the thickness T of the holding part 42 is made uniform as in the case of the holding part 32. However, the thickness T of the holding portion 42 may change in the longitudinal direction of the screw holder 40.

  According to the above configuration, in the case of the screw 12 having the small-diameter head 22, as shown by the solid line in FIG. 6, the screw 12 is held at a position near the fitting portion 31 in the holding portion 42. On the other hand, in the case of the screw 12 having the large-diameter head 22, as shown by a two-dot chain line in FIG. Thus, the screw holder 40 has a position where the head 22 is held differently depending on the diameter of the head 22, and the screw 12 having a larger diameter of the head 22 is held at a position closer to the tip. Therefore, the screws 12 of various sizes can be securely held. For this reason, workability is good even when the screws 12 of different sizes are tightened or loosened sequentially. Moreover, since the holding | maintenance part 42 is further elastically deformed by the elastic deformation in radial direction, it can respond to the head 22 of a more various diameter. In this example, it has been confirmed that even screws 12 of various sizes having a head 22 having a diameter approximately the same as the diameter of the shaft 17 and about three times the diameter of the shaft 17 can be held.

  Note that, as described above, the position where the screw 12 is held in the holding portion 42 differs depending on the diameter of the head 22, so the position of the tip 17 t of the shaft 17 of the driver 11 is determined in advance of the head 22 of the screw 12. It is preferable to set according to the diameter. In this respect, the fitting portion 31 is slidable in the longitudinal direction of the shaft 17 and the screw holder 40 is transparent. Therefore, the position adjustment of the tip 17t of the shaft 17 is quick, and the workability is good.

  Further, since the screw holder 40 of this example is transparent, the tip of the driver 11 and the screw 12 are visually recognized from the outside. For example, when the screw 12 is tightened, the position and state of the screw 12 are determined by the screw holding. As in the case of the tool 10, it is confirmed from the outside of the screw holder 40. Therefore, even when the tip 17t of the driver 11 is disengaged from the groove (not shown) of the head 22 while the screw 12 is being tightened, alignment with the groove can be performed easily and quickly. In addition, it is easy to align the tip of the driver 11 and the groove of the head 22 of the screw 12 during the work of loosening the attached screw 12.

  Since the holding portion 42 is elastically deformed in the longitudinal direction of the screw holder 40, when the screw 12 is tightened, the tip of the holding portion 42 comes into contact with the first member M <b> 1 and is lifted up like the holding portion 32. Turn up. Therefore, the screw 12 is securely tightened to the target position with good workability. Furthermore, even in the case of a screw hole with a small diameter, the tip of the holding part 42 is lifted or turned up, so that the driver operation is good without being disturbed. Further, when the screw 12 that has already been tightened is pulled out, the tip of the holding portion 42 is lifted or turned up, so that the tip 17t of the shaft 17 of the driver 11 is surely inserted into the groove of the head 22 of the screw 12. The screw 12 can be loosened. Further, since the elastically deformed holding portion 42 returns to its original shape, at least the head portion 22 of the removed screw 12 is reliably caught by the holding portion 42 and the screw 12 is held.

  The screw holder 60 shown in FIG. 7 differs from the screw holder 40 only in that a cutting line 36 similar to that of the screw holder 10 is formed in the holding portion 42 of the screw holder 40. That is, the screw holder 60 includes the fitting portion 31 and the holding portion 62, and the holding portion 62 is formed by forming the cutting line 36 in the holding portion 42. The length of the cutting line 36 is shorter than the length of the holding portion 62 in this example, but may be the same as the length of the holding portion 62. When the cutting line 36 is formed longer than the region where the inner diameter d changes toward the tip, the length region of the cutting line 36 is specified as the holding portion 62.

  In the holding portion 62 of this example, three cutting lines 36 are formed at equal intervals in the circumferential direction. Therefore, the tip of the holding portion 62 is equally divided into three. However, the number of divisions is not limited to this example, and may be divided into two or four or more.

  Since the holding portion 62 is divided in the circumferential direction by the cutting line 36, the diameter of the head portion 22 of the screw 12 that can be held is larger than that of the holding portion 42 that is not divided (see FIGS. 5 and 6). Larger and more flexible with respect to the size of the screw 12 that can be held. In addition, when the screw 12 is tightened, the holding portion 62, as with the holding portion 32, more reliably raises the tip of the holding portion 62 that is in contact with the first member M <b> 1 (see FIGS. 1 and 4). Or turn up. Therefore, the screw 12 is securely tightened with good workability. Further, since the cutting lines 36 are formed at equal intervals in the circumferential direction, the tip of the holding portion 62 that is in contact with the first member M1 extends radially outward from the center of the circular cross section, and the screw 12 is the first. It is difficult to tilt with respect to the screw hole of the member M1. Further, when the screw 12 that has already been tightened is pulled out, the tip of the holding portion 62 is more reliably lifted or turned up, so that the tip 17t of the shaft 17 of the driver 11 is a groove in the head 22 of the screw 12. And the screw 12 can be loosened. Further, since the holding part 62 that has been tucked up or turned up returns to its original shape, at least the head portion 22 of the removed screw 12 is reliably caught by the holding part 62. Since the tip of the holding portion 62 is divided in the circumferential direction and is easy to spread, the screw 12 held by the holding portion 62 can be quickly and reliably recovered from the screw holder 60 with one hand, for example, and the workability is very good.

  A screw holder 80 shown in FIG. 8 includes a fitting portion 31 and a holding portion 82. In FIG. 8, the same members as in FIGS. 1 to 7 are denoted by the same reference numerals as in FIGS. The holding part 82 is formed of the same material as that of the holding part 32, is formed integrally with the fitting part 31 at one end of the cylindrical fitting part 31, and goes from the fitting part 31 side toward the tip. , A cylindrical member whose inner diameter d is gradually increased. Therefore, the holding part 82 has a stepped inner wall. The only difference from the holding part 42 is that the inner diameter d gradually increases. In FIG. 8, for convenience of explanation, the degree of gradual increase of the inner diameter d, that is, the inclination of the inner wall with respect to the longitudinal direction of the screw holder 80 is drawn greatly exaggerated.

  Regarding the thickness T of the holding portion 82, the stepped region is thinner than the other regions. However, the thickness T of the holding portion 82 may be constant in the longitudinal direction of the screw holder 80.

  According to this configuration, as in the case of the holding portion 42 and the holding portion 62, the screw 12 having the small-diameter head portion 22 is held at a position near the fitting portion 31 in the holding portion 82. On the other hand, in the case of the screw 12 having the large-diameter head portion 22, it is held at a position near the tip of the holding portion 82. As described above, the screw holder 80 is different in the position to hold the head 22 according to the diameter of the head 22 and the diameter of the head 22 is the same as in the case of the screw holder 40 and the screw holder 60. The larger screw 12 is held at a position closer to the tip. Therefore, the screws 12 of various sizes can be securely held. For this reason, workability is good even when the screws 12 of different sizes are tightened or loosened sequentially.

  Also in this example, the position where the screw 12 is held in the holding portion 82 differs depending on the diameter of the head portion 22, so the position of the tip 17 t of the shaft 17 of the driver 11 is set in advance to the diameter of the head portion 22 of the screw 12. It is preferable to set it accordingly. In this respect, since the screw holder 80 is transparent, the position adjustment of the tip 17t of the shaft 17 is quick, and the workability is good.

  Further, the screw holder 80 of this example is transparent like the screw holders 10, 40, 60, and the workability is good because the tip of the driver 11 and the screw 12 are visible from the outside. Since the holding portion 82 is elastically deformed in the longitudinal direction of the screw holder 80, when the screw 12 is tightened, the tip of the holding portion 82 comes into contact with the first member M1 and is lifted up like the holding portion 32. Turn up. Therefore, the screw 12 is securely tightened to the target position with good workability. Further, when the screw 12 that has already been tightened is pulled out, the tip of the holding portion 82 is lifted or turned up, so that the tip 17t of the shaft 17 of the driver 11 is surely inserted into the groove of the head 22 of the screw 12. The screw 12 can be loosened. Since the elastically deformed holding portion 82 returns to its original shape, at least the head portion 22 of the removed screw 12 is reliably caught by the holding portion 82 and the screw 12 is held. Thus, the screw holder 80 also has very good workability.

  Similarly to the holding part 32 (see FIGS. 2 to 4) and the holding part 62 (see FIG. 7), a cutting line may be formed in the holding part 82 to divide the tip. By dividing the tip, there is an action similar to that of the holding portions 32 and 62.

  With respect to the holding portion 32 (see FIGS. 2 to 4), the holding portion 42 (see FIGS. 5 and 6), the holding portion 62 (see FIG. 7), and the holding portion 82 (see FIG. 8) in each of the above examples. A mode may be adopted in which the thickness is gradually increased as it goes to. For example, a screw holder 90 shown in FIG. 9 includes a holding portion 92 whose thickness T gradually increases toward the tip instead of the holding portion 32, and the other configuration is the same as that of the screw holder 10. Similarly to the holding portion 32, the holding portion 92 includes a screw 12 having a head 22 having the same diameter as the shaft 17 (see FIGS. 1, 3, 4, and 6) and a diameter larger than the diameter of the shaft 17. Can hold. Further, since the holding portion 92 gradually increases as the thickness T approaches the tip, and the inner diameter d gradually decreases toward the tip, the screw 12 having the head 22 having a diameter smaller than the diameter of the shaft 17 is provided. It can be held reliably and quickly. For this reason, the workability | operativity in the case of using the small screw 12 improves, and the various screws 12 from which size differs in a wider range can be tightened one after another.

  In the case where the thickness T is gradually increased toward the tip of the holding portion 42, the holding portion 62, and the holding portion 82, the screw 12 whose mass is increased due to the increase in size by gradually increasing the inner diameter d toward the tip. Even if it exists, it is hold | maintained reliably and rapidly, and workability | operativity is good.

  When the screw holders 10, 40, 60, 80, 90 are formed of a thermoplastic material, for example, a thermoplastic elastomer, any of them can be formed by, for example, injection molding. Further, when forming with a thermosetting material, for example, a thermosetting elastomer, the raw material is put into a mold and heated, or a semi-cured preform is formed into a predetermined shape by thermoforming. It can be made by such methods.

10, 40, 60, 80, 90 Screw holder 11 Driver 12 Screw 16 Grip part 17 Axis 17t Tip 18 Axis body 19 Tip part 21 Axis 22 Head part 31 Fitting part 32, 42, 62, 82, 92 Holding part 36 Cutting line L10 Length M1 First member M2 Second member

Claims (9)

A screw holder for a driver that is formed in a cylindrical shape, is transparent, and elastically deforms in the radial direction.
A fitting portion into which the shaft of the driver is fitted;
A holding portion that is formed integrally with the fitting portion at one end of the fitting portion, and holds a screw head in the hollow portion;
A screw holder for a driver, comprising:   The screw holder for driver according to claim 1, wherein the holding portion is elastically deformed in a longitudinal direction of the screw holder for driver.   The screw holder for drivers according to claim 1 or 2 with which the tip of said holding part is divided in the peripheral direction.   The screw holder for a driver according to any one of claims 1 to 3, wherein the holding portion has an inner diameter that gradually increases toward the tip.   The screw holder for a driver according to claim 4, wherein an inner diameter of the holding portion is continuously increased gradually toward the tip.   The screw holder for a driver according to claim 4, wherein an inner diameter of the holding portion is gradually increased in a stepped manner toward the tip.   The screw holder for a driver according to any one of claims 1 to 3, wherein the holding portion has an inner diameter that gradually decreases toward the tip.   The screw holder for a driver according to any one of claims 1 to 7, wherein the holding portion has a thickness that gradually increases toward the tip.   The screw holder for a driver according to any one of claims 1 to 8, wherein the screw holder is formed of an elastomer.

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