KR102058885B1 - Power Tool having Rotating Type Grip - Google Patents

Abstract

The present invention relates to a power tool having a rotary grip portion configured to perform a switching operation by rotating the grip portion formed in the main body portion of the power tool.
The present invention is a main body portion 10 consisting of a housing (16); A grip part (11) rotatably coupled to an outer surface of the housing (16); It includes a switch unit 14 provided in the housing 16,
The grip portion 11 is capable of moving forward and backward along the longitudinal direction of the housing 16 at the same time as the rotation, and inside the end of the grip portion 11 is moved forward at the same time when the grip portion 11 is rotated forward to switch The push member 12 is formed to protrude in contact with the unit 14 to perform a switching operation.

Description

Power Tool Having Rotating Type Grip

The present invention relates to a power tool having a rotary grip portion, and more particularly, to configure the grip portion formed in the main body of the power tool in a rotary type to perform a switching operation.

In general, a power tool has been developed in various ways according to the use, of which a power tool such as a grinder is usually composed of a main body and a wheel that is provided at the tip of the main body to rotate the object, the main body is It has a structure in which a grip portion that can be gripped by the operator is formed.

Such a conventional grinder is operated by pressing a separately provided switch when the grinder is operated for polishing, and the posture is often incorrect during polishing.

In other words, the grinding position of the workpiece is changed, the position of the hand holding the grip of the grinder in accordance with the change of the working position is not easy to take in a proper position accordingly.

In addition, the conventional grinder is the on / off of the operating state by the operation of the switch, the switch rod and the switch knob for the switch operation should be equipped inside the main body, so that the number of parts increases and the product cost increases Cause.

Japanese Patent Laid-Open No. 2014-161947 (Published: September 8, 2014)

Accordingly, the present invention has been invented to solve the conventional problems as described above, the problem to be solved by the present invention is configured to rotate the grip portion provided in the main body portion, the switch by the rotation and forward operation of the grip portion When the grip part is rotated and the rotated grip part is released, the grip part is released and the switching state is released to stop the operation of the power tool so that the operator's working posture can be maintained correctly and the worker's work stability can be improved. It is to provide a power tool having a rotary grip that can lower the.

Solution for solving the above problems, the main body portion consisting of a housing; A grip part rotatably coupled to an outer surface of the housing; It includes a switch unit provided inside the housing,

The grip part may be moved forward and backward along the longitudinal direction of the housing at the same time as the grip part rotates, and inside the grip part end, a push member is moved forward and simultaneously in contact with the switch part when the grip part moves forward to make a switching operation. It is formed to protrude.

In addition, the push member penetrates through the support plate fixed inside the housing to contact the switch unit, and grips on the outer circumferential surface of the push member positioned between the support plate and the inner side of the end of the grip portion to rotate and advance the grip state When released, the elastic member is held in place so that the grip portion returns to its original position.

The grip part is divided and assembled into the first and second grip parts, and an end portion of the first grip part is provided with a central portion to be the center when rotating and a receiving groove is formed in one direction of the central portion.

In addition, a spiral groove is formed on an outer circumferential surface of the housing, and a spiral protrusion is formed on an inner surface of the grip part to enable rotational movement along the spiral groove.

As such, the present invention is configured to rotate the grip of the power tool body to perform the operation by holding the grip in the rotated state during operation, and to release the holding grip to stop the operation to perform the operation more stably It can be effective.

In addition, since the grip part is rotated, the present invention can take a suitable posture even if the work position is changed at any time during the work, so that the work can be conveniently performed.

In addition, since the present invention performs a switching operation through the grip portion, it is possible to reduce the number of parts compared to the prior art has the effect of lowering the unit cost.

1 is a perspective view of a power tool according to an embodiment of the present invention.
Figure 2 is an exploded perspective view of the power tool according to an embodiment of the present invention.
3A is a cross-sectional view illustrating a coupling of the power tool according to an embodiment of the present invention, before the grip part is rotated.
3B is a cross-sectional view illustrating a state in which the grip part is rotated and the power tool is operated from FIG. 3A.
4A is a right side view of FIG. 1, illustrating a state before the grip part is rotated.
4B is a right side view illustrating a state in which the grip part is rotated and switched from FIG. 4A.

DETAILED DESCRIPTION Hereinafter, specific details for carrying out the present invention will be described in detail with reference to the accompanying drawings.

The terminology used herein is a general term that has been widely used as far as possible while considering functions, but may vary according to the intention or custom of a person skilled in the art or the emergence of a new technology. In addition, in certain cases, there is a term arbitrarily selected by the applicant, in which case the meaning will be described in the description of the specification. Therefore, it is to be understood that the terminology used herein is to be interpreted based on the actual meaning of the term and the contents throughout the specification, rather than simply on the name of the term.

1 is a perspective view of a power tool according to an embodiment of the present invention, Figure 2 is an exploded perspective view of FIG.

As shown in Figure 1 and 2, the power tool 1 according to an embodiment of the present invention, the main body 10 and the cylindrical body 10, while working while rotating while provided in front of the main body portion 10 It is made of a wheel 20 to perform, and in one side direction may be provided with a side handle (not shown) to allow the operator to grip when working.

In addition, the body portion 10 is provided with a cylindrical grip portion 11 that can be gripped by the operator for the work, the grip portion 11 is divided into two divided first and second grip portions (11a) (11b). Can be configured.

In addition, an end of the grip portion 11 is connected to a power cord 40 for power supply, so that the end of the first grip portion 11a is the center of rotation when the first grip portion 11a rotates for a switching operation. The central portion 11c is formed, and the receiving groove 11d is formed at one side of the central portion 11c.

In addition, the support member 13 is formed so that the push member 12 is protruded inside the central portion 11c of the first grip portion 11a, and the push member 12 is inserted into and supported in the main body portion 10. It is provided, the inner side of the support plate 13 has a structure in which the switch member 14 is formed to enable the power supply when the push member 12 is advanced to make a connection.

The push member 12 may be formed in a straight line having a predetermined length, and formed to be disposed at a slight distance from the switch unit 14.

In addition, the push member 12 may be formed in a cylindrical shape, but may be configured in other forms.

In addition, the support plate 13 is formed with a through hole through which the push member 12 passes, and the through hole has a structure in which the side is cut open so that the push member 12 can be easily inserted in the side direction of the through hole. Can be.

In addition, the elastic member 15 is supported on the outer circumferential surface of the push member 12 while being between the support plate 13 and the inner side of the end portion of the grip portion 11 so that the grip portion 11 rotates and moves forward. When the elastic member 15 is compressed and the rotated grip part 11 is released, the grip part 11 is pushed by the repulsive force of the compressed elastic member 15 so that the grip part 11 also moves backward while reversing. .

In the present embodiment, the elastic member 15 may be configured in the form of a coil spring.

On the other hand, the elastic member 15 may be configured in the form of a spring, in this case, both ends of the elastic member 15, respectively, the inner surface of the central portion (11c) of the support plate 13 and the first grip portion (11a) It has a structure that is fixed to, the spring winding during the rotation of the grip portion 11 is wound by the amount that the grip portion 11 is rotated, the grip portion 11 is returned to its original position while the grip portion 11 is rotated back and reversed Can be.

In addition, the housing 16 forming the exterior of the main body 10 has a structure in which at least one spiral groove 16a is formed in a predetermined range.

The one or more spiral grooves 16a have a structure inclined in one direction.

In addition, the inner surfaces of the first and second grip parts 11a and 11b have a structure in which one or more spiral protrusions 11e are inserted into the spiral grooves 16a and rotated to allow the spiral movement.

The spiral protrusion 11e is inserted into the spiral groove 16a to be guided along the spiral groove 16a as the first grip part 11a rotates.

In other words, the grip portion 11 is rotatably assembled on the outer surface of the housing 16.

In addition, the first and second grip parts 11a and 11b may be configured as grip parts 11 which are combined to be disassembled and assembled by screws (not shown) and rotated integrally.

Here, the spiral protrusion 11e of the grip portion 11 and the spiral groove 16a of the housing 16 have a different distance from which the grip portion 11 is rotated and advanced depending on the degree of inclination, and the switch portion 14 and the push According to the distance between the members 12, the push member 12 may be properly advanced to be in contact with the switch unit 14 to form a switching operation.

In addition, the support plate 13 is formed with a through hole through which the push member 15 penetrates, and one side of the through hole is provided with a cutout structure, which supports one end of the elastic member 15 but may not be reliably supported. Thus, one surface of the support plate 13 may be provided with a support washer 18 to support the elastic member 15 more stably and reliably.

Power tool 1 (for example, electric grinder) according to an embodiment of the present invention having such a structure is, for example, when the operator wants to polish the workpiece, the operator has one side handle (Fig. 1 Spirally formed on the inner side of the grip part 11 by holding the grip part 11 with the other hand and turning it in one direction. The protrusion 11e is inserted into the spiral groove 16a formed on the outer surface of the housing 16 so that the spiral protrusion 16a is advanced along the direction of the spiral groove 16a, and the grip portion 11 then moves to the housing ( 16) is rotated to move forward.

At the time of rotation of the grip part 11, a receiving groove 11d is formed at the end side of the grip part 11, and at the first grill part 11a side, the receiving groove 11d is rotated about the central portion 11c. ) Is inserted into the side of the power cord 140, the rotation of the first grip portion (11a) is naturally made, and of course, the second grip portion (11b) is also rotated at the same time.

As the grip part 11 rotates, the push member 12 which is formed to protrude on the inner surface of the center portion 11c formed at the end of the grip part 11 is rotated and advanced at the same time, and the elastic member 15 is Since the center portion 11c rotates and moves forward, the center portion 11c is compressed between the support plate 13 and contracted in length.

When the push member 12 is moved forward, it comes into contact with the switch unit 14 provided on the inner side is pressed and the switch unit 14 is operated to supply power to the state that the power tool 1 is operated Will be.

During operation of the power tool 1, the grip part 11 should be rotated. If the grip part 11 is released in the rotated state, the center of the grip part 11 is caused by the repulsive force of the compressed elastic member 15. (11c) is pushed inward, and then the grip portion 11 is also retracted while the spiral projection (11e) is retracted along the spiral groove (16a) of the housing (16), at this time, the rotating portion is moved forward to the switch portion (14) The push member 12, which has been in contact with it, also rotates backward and retracts to its original position. As a result, the operation of the switch unit 14 is interrupted to stop the power supply, thereby stopping the operation of the power tool 1.

Therefore, since the switching operation and the operation stop state are made according to the rotation operation of the grip unit 11, the operation can be performed more stably.

In addition, the present invention has a structure in which the grip portion 11 is rotated when changing the posture when the worker is working, the position of the gripped hand is automatically made to perform the work in a comfortable posture even when a changed posture is required. can do.

In addition, since there is no need to include components such as a switch rod and a switch knob as in a switch provided in a conventional power tool, the number of parts can be reduced, thereby reducing the product cost.

In the above, specific embodiments of the present invention shown in the accompanying drawings have been described in detail, but these are merely illustrative of the preferred embodiments of the present invention, and the scope of protection of the present invention is not limited thereto. In addition, the embodiments of the present invention as described above can be variously modified and equivalent other embodiments by those of ordinary skill in the art within the technical spirit of the present invention, such modifications and equivalent other embodiments are It belongs to the appended claims of the invention.

1: Power tool
10: main body
11 grip part
11a: first grip portion
11b: second grip portion
11c: center
11d: Accepting Home
11e: spiral protrusion
12: push member
13: support plate
14: switch unit
15: elastic member
16: housing
16a: Spiral groove
18: support washer
20: wheel
40: power cord

Claims (4)

The main body 10 consisting of a housing 16,
A grip part rotatably coupled to an outer surface of the housing 16 and rotatable forward and backward in the longitudinal direction of the housing 16 by rotation;
It includes a switch unit 14 fixed to the inside of the housing 16,
A push member 12 which protrudes in a straight line inside the end of the grip part 11 and contacts with the switch part 14 fixed in the housing 16 while advancing by the rotation of the grip part 11 to perform a switching operation;
A support plate 13 formed in the main body 10 to support the push member 12 through which the through hole is formed, and
Both ends of the support plate 13 and the inside of the end of the grip part 11 are brought into contact with each other, and the advanced grip part 11 moves backward to provide an elastic force so that the push member 12 falls on the switch part 14, thereby further adding the elastic member 15. Power tool having a rotary grip, characterized in that it comprises a.
delete The method according to claim 1,
The grip portion 11 is divided and assembled into first and second grip portions 11a and 11b, and the end portion of the first grip portion 11a is disposed at the center portion 11c and the one side direction of the center portion 11c so as to be the center when rotating. Power tool having a rotary grip portion, characterized in that the receiving groove (11d) is formed.
The method according to claim 1,
A spiral groove 16a is formed on the outer circumferential surface of the housing 16, and a spiral protrusion 11e is formed on the inner surface of the grip portion 11 to enable rotational movement along the spiral groove 16a. Power tool with typical grip.

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