JPH08187670A - T type wrench - Google Patents

Abstract

PURPOSE: To facilitate rotating a handle without displacing a bolt or the like from an end part of a rotary shaft during tightening the bolt or the like, by providing a retainer plate for retaining in a rotary shaft direction in a peripheral surface of a rotary shaft intermediate part, and making the retainer plate hold the peripheral surface of the rotary shaft intermediate part, to increase directional retaining force of the bolt or the like. CONSTITUTION: A retainer plate 6 is held in a suitable part provided with a circumferential groove 5 of a rotary shaft intermediate part 4. In the case of rotating a bolt, nut, etc., by a hand reverse to a hand of holding a handle 1, it is rotated while retaining the retainer plate 6 by force in a bolt direction of the handle 1 orthogonal to a direction of gripping a rotary shaft 2, to stably perform rotating without dislocating a T type wrench from a bolt or the like. Since a receiving groove is provided in a side of a rotary shaft end part 3 of this retainer plate 6, even in the case of mounting/demounting a bolt, nut, etc., in the bottom or the like of a vehicle, the bolt or the like and oil are received by this receiving groove.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a T-type wrench for rotating and tightening bolts and nuts.

[0002]

2. Description of the Related Art A conventional T-type wrench will be described with reference to FIG.

FIG. 7 is an external view of a conventional T-type wrench.
When rotating a rotating body such as a bolt or a nut, the bolt or the like is inserted into the tip portion 101 of the rotary shaft, and the handle 102 is rotated to tighten the bolt. Reference numeral 103 denotes a rotating body, which grips the rotating body 103 when rotating a bolt or the like and also rotates the rotating body, so that lateral shake of the rotating shaft 104 can be prevented and rotation can be facilitated. Met.

[0004]

However, in such a conventional T-type wrench, since the T-type wrench is gripped in the lateral direction, the lateral shake can be prevented to some extent, but when the handle 2 is rotated, it is rotated. When the rotating body such as the bolt is rotated by the pressing force of the handle in the bolt direction which is orthogonal to the force in the gripping direction of the shaft, there is a problem that the rotating shaft cannot be completely fixed to the bolt. Also, when rotating bolts, nuts, etc., especially when rotating the bolts on the bottom of the automobile, there is a problem that oil adhering to the bolts, etc. and the bolts, etc. after detachment fall down and hit the face etc. there were.

In order to solve the above problems, the present invention increases the pressing force in the direction of a bolt or the like, and the ends of the bolt and the rotating shaft are not displaced during tightening of the bolt or the like, and the handle can be easily rotated. The first purpose is to do so.

A second object is to prevent the oil adhered to the bolts or the like after the bolts or the like on the bottom of the automobile from rotating or the bolts or the like after they have fallen off and fall on the face or the like. Is.

[0007]

In order to solve the above-mentioned problems, the present invention has a rotary shaft, a handle for rotating the rotary shaft, and a rotary shaft having a distal end for inserting and rotating a rotary body. Of the rotary shaft, a rotary shaft intermediate part provided on the rotary shaft and having a smaller diameter than the rotary shaft, a presser plate provided on the outer peripheral surface of the rotary shaft intermediate part for pressing in the rotary shaft direction, and the presser plate. The locking means is provided to hold the shaft on a specific outer peripheral surface of the rotary shaft intermediate portion.

Further, a multi-step surface is provided on the surface of the pressing plate on the handle side. Further, the locking means is provided in the intermediate portion of the rotating shaft, and has a circumferential groove having a diameter smaller than that of the intermediate portion of the rotating shaft, an engaging means for engaging with the outer circumference of the circumferential groove, and the engaging means. It has a convex portion.

Further, the locking means includes a circumferential groove provided in an intermediate portion of the rotary shaft and having a smaller diameter than the rotary shaft intermediate body, an insertion hole provided on a side surface of the holding plate, and a rod inserted by the insertion hole. Holds the holding plate by joining with the circumferential groove.

A spring is provided around the rod in the insertion hole,
A spring fixing portion having a diameter larger than that of the rod is provided at the tip of the rod on the circumferential groove side.

Further, in order to achieve the second object, a receiving groove is provided at the tip end side of the rotary shaft of the pressing plate.

Further, the diameter of the receiving groove is increased as it goes away from the tip of the rotary shaft.

[0013]

According to the present invention, since the pressing plate that can be pressed in the rotating shaft direction is provided on the outer peripheral surface of the rotating shaft intermediate portion that is provided on the rotating shaft and has a smaller diameter than the rotating shaft, the rotating body can be fixed by the T-wrench. When rotating, the rotating shaft can be firmly fixed and will not come off from the rotating body.

Further, since the holding plate is provided with a multi-stepped surface on the handle side, it is possible to deal with people of all sizes when pressing the holding plate.

Further, since the engaging means is fixed to a specific position of the intermediate portion of the rotating shaft by the engaging means engaging with the outer circumference of the circumferential groove and the convex portion for locking the engaging means, the rotating shaft is fixed. The position from the tip to the holding plate can be set according to use.

Further, the position of the holding plate can be set according to the use by a structure in which the rod inserted through the insertion hole joins the circumferential groove.

Further, in order to easily fix the pressing plate at a specific position in the intermediate portion of the rotating shaft, a spring is provided around the rod in the insertion hole, and the tip of the rod on the circumferential groove side is provided with a spring. A spring fixing part with a large diameter is provided.

Further, since the holding groove is provided on the tip end side of the rotary shaft of the pressing plate, oil attached to the bolts or detached bolts may drop downward during attachment / detachment of the bolts or the like on the bottom of the automobile. , There is no contact with the face.

Further, since the diameter of the receiving groove is made larger as it goes away from the tip of the rotary shaft, it is possible to prevent oil, bolts and the like that have entered the receiving groove from falling out of the receiving groove.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is an external view of a T-type wrench according to the first embodiment of the present invention. 1 is a handle, and this handle 1
By rotating the rotating body, a rotating body such as a bolt or a nut inserted in the rotating shaft tip portion 3 at the tip of the rotating shaft 2 is rotated and tightened. Reference numeral 4 denotes a rotary shaft intermediate portion, which has a diameter smaller than that of the rotary shaft, and, as shown in FIG. 2, a holding plate 6 provided on the outer peripheral surface of the rotary shaft intermediate portion 4 extends from the rotary shaft intermediate portion 4. It does not come off. Further, when the bolts, nuts and the like inserted in the rotary shaft distal end portion 2 are rotated and tightened, the user can press them from the holding plate 6 in the direction of the rotary shaft distal end portion 2. The engagement means 7 is provided so that the user can hold the pressing plate 6 at a specific position of the rotary shaft intermediate portion 2. As shown in FIGS. 2 and 3 (a), this engaging means is a circumferential groove 5 having a diameter smaller than that of the rotary shaft provided in the rotary shaft intermediate portion 2.
The engaging means 7 is provided so as to cover the outer periphery of the engaging means 7, and the engaging means 7 enters the circumferential groove 5 and holds the holding plate 6. In this state, the engaging means 7 is locked by the convex portion 8 so as not to separate from the circumferential groove.

On the surface of the pressing plate 6 in the direction of the tip 4 of the rotary shaft, a receiving groove is formed whose diameter increases as it goes away from the tip 4 of the rotary shaft. The receiving groove 9 plays a role in preventing oil attached to the bolts and nuts and the bolts and nuts from falling when the bolts and nuts are removed and attached to the bottom of the vehicle. A support portion 10 for supporting the rotary shaft intermediate portion 4 is provided around the rotary shaft intermediate portion 4 of the holding plate 6.

To explain the use in the above structure, in order to rotate and tighten the rotating body such as bolts and nuts, the rotating body is inserted into the tip 2 of the rotating shaft and the handle 1 is rotated.

At this time, the pressing plate 6 is pressed by the hand opposite to the hand holding the handle 1. The pressing plate 6 can be held at the position of the circumferential groove 5 of the rotary shaft intermediate portion 4 by the locking means 7.

In FIG. 2, the circumferential groove 5 is shown as
Although it is provided near both ends of, the position is not limited to that.

According to the first embodiment of the present invention described above, the rotary shaft 2 and the handle 1 for rotating the rotary shaft 2 are provided, and the rotary shaft 2 has at the tip thereof for inserting and rotating the rotary body. Of the rotating shaft 2 and the rotating shaft 2 provided on the rotating shaft 2
A rotating shaft intermediate portion 4 having a smaller diameter, a pressing plate 6 provided on the outer peripheral surface of the rotating shaft intermediate portion 4 and capable of pressing in the rotating shaft direction, and a specific outer peripheral surface of the rotating shaft intermediate portion 4. Since the holding means for holding the holding plate 6 is provided, the holding plate 6 is held at an appropriate position with the circumferential groove 5 of the rotary shaft intermediate portion 4, and the hand holding the handle when rotating the bolts, nuts, etc. Since the handle can be rotated while pressing the pressing plate 6 with the opposite hand by the force of the bolt direction of the handle orthogonal to the gripping direction of the rotating shaft 2, the T-type wrench does not come off from the bolt etc., and rotates stably. Can be made.

Further, since the receiving groove 9 is provided on the side of the tip end 3 of the rotary shaft of the pressing plate 6, even when the bolts and nuts of the bottom of the car are attached and detached, the removed bolts and oil are received. Since it can be received by the groove 9, the bolt and the like are not lost, and the oil attached to the bolt and the like is not splashed on the face and the like. Further, since the receiving groove 9 has a diameter that increases as it goes away from the tip 3 of the rotary shaft, the risk that the oil contained in the receiving groove 9 overflows outside the receiving groove 9 is very small.

Next, a second embodiment of the present invention will be described. FIG. 4 shows an external view of the T-type wrench of the second embodiment of the present invention.

As shown in FIG. 4, a multi-step is provided on the handle side surface of the holding plate, and as shown in FIG. 5, locking means is provided from the insertion hole 11 provided on the side surface of the holding plate 6 to the rod 12. Is inserted and is held in the rotary shaft intermediate part 4 so as to be joined to the circumferential groove 5 having a smaller diameter than the rotary shaft intermediate part 4 provided in the rotary shaft intermediate part 4. Different from the embodiment.

With the above structure, since the surface of the pressing plate 6 on the handle 1 side is provided with multiple steps, even a person of any size can easily press the pressing plate when rotating the T-wrench. .

Next, a third embodiment will be described with reference to FIG. As shown in FIG. 6, a spring 13 is provided around the rod 12 in the insertion hole 11, and the spring 13 does not come off from the rod 12 at the tip of the rod 12 on the circumferential groove 5 side. A larger spring fixing portion 14 is provided. And the insertion hole 11
The hole on the outer peripheral side of the holding plate 6 is smaller than the diameter of the spring 13 so that the spring 13 does not come out of the insertion hole 11.

With the above structure, when the rod 12 is removed from the circumferential groove 5 and the pressing plate 6 is moved, the rod 12 may be pulled, and when the hand is released from the rod 12, the rod 12 is directed in the direction of the circumferential groove 5. Since the pressing plate 6 is moved, the pressing plate 6 can be easily moved.

[0033]

According to the above structure, the present invention provides a rotating shaft,
A handle for rotating the rotating shaft, a rotating shaft tip portion for inserting and rotating a rotating body, which is provided at the tip of the rotating shaft, and a rotating shaft provided on the rotating shaft and having a diameter smaller than that of the rotating shaft. An intermediate portion, a holding plate provided on the outer peripheral surface of the rotating shaft intermediate portion and capable of being pressed in the rotating shaft direction, and a locking means for holding the holding plate on a specific outer peripheral surface of the rotating shaft intermediate portion are provided. Therefore, hold the holding plate in a suitable place with a circumferential groove in the middle of the rotating shaft, and when rotating the bolts, nuts, etc., grasp the holding plate on the rotating shaft with the hand opposite to the hand holding the handle. Since the handle can be rotated while being pressed by the force in the bolt direction of the handle orthogonal to the direction, the T-type wrench can be stably rotated without being displaced from the bolt or the like.

Further, since the receiving groove is provided on the tip end side of the rotary shaft of the pressing plate, even when the bolts and nuts of the bottom of the vehicle are mounted and removed, the removed bolts and oil are received by the receiving groove. Therefore, the bolt and the like are not lost, and the oil attached to the bolt is not splashed on the face.

Further, since the diameter of the receiving groove is increased as the distance from the tip of the rotary shaft increases, the risk of oil in the receiving groove overflowing outside the receiving groove is very small.

Further, since the handle-side surface of the pressing plate is provided with a multi-stepped surface, a person of any size can easily press the pressing plate when rotating the T-wrench.

Further, when removing the rod from the circumferential groove and moving the holding plate, it is sufficient to pull the rod. When the hand is released from the rod, the rod moves in the direction of the circumferential groove, so that the holding plate is moved. At that time, it can be easily moved.

[Brief description of drawings]

FIG. 1 is a diagram in which a holding plate is removed from a T-type wrench according to a first embodiment of the present invention.

FIG. 2 is an external view of a T-wrench of the same embodiment.

FIG. 3 is a view showing a state in which the holding plate of the T-wrench of the embodiment is locked in the circumferential groove.

FIG. 4 is an external view of a T-wrench according to a second embodiment of the present invention.

FIG. 5 is a sectional view of the T-wrench of the same embodiment.

FIG. 6 is a sectional view of a T-wrench according to a third embodiment of the present invention.

FIG. 7 is an external view of a conventional T-type wrench.

[Explanation of symbols]

 1 Handle 2 Rotating Shaft 3 Rotating Shaft Tip 4 Rotating Shaft Middle 5 Circumferential Groove 6 Holding Plate 7 Engaging Means 8 Convex 9 Receiving Groove 10 Supporting 11 Insertion 12 Rod 13 Spring 14 Spring Fixing

Claims (7)

[Claims] 1. A rotary shaft, a handle for rotating the rotary shaft, and a rotary body inserted at a tip of the rotary shaft,
A rotating shaft tip portion for rotating, a rotating shaft intermediate portion provided on the rotating shaft and having a diameter smaller than that of the rotating shaft, and a holding plate provided on the outer peripheral surface of the rotating shaft intermediate portion for pressing in the rotating shaft direction. And a T-shaped wrench provided with locking means for holding the pressing plate on a specific outer peripheral surface of the intermediate portion of the rotating shaft. 2. The T-type wrench according to claim 1, wherein a multi-step surface is provided on a surface of the holding plate on the handle side. 3. The locking means is provided in a middle portion of the rotating shaft, has a circumferential groove having a smaller diameter than the middle portion of the rotating shaft, engaging means for engaging with the outer circumference of the circumferential groove, and the engaging means. The T-type wrench according to claim 1 or 2, further comprising a convex portion that locks. 4. The locking means comprises a circumferential groove having a diameter smaller than that of the rotary shaft intermediate body, which is provided in the rotary shaft intermediate portion, an insertion hole provided on a side surface of the holding plate, and a rod inserted by the insertion hole. The T-type wrench according to claim 1 or 2, wherein the pressing plate is held by being joined to the circumferential groove. 5. The T-type wrench according to claim 4, wherein a spring is provided around the rod in the insertion hole, and a spring fixing portion having a diameter larger than that of the rod is provided at the tip of the rod on the circumferential groove side. 6. The T-type wrench according to claim 1, wherein a receiving groove is provided on the side of the tip of the rotating shaft of the holding plate. 7. A T-shaped wrench whose diameter is increased as the receiving groove becomes farther from the tip of the rotary shaft.