JPS6316385Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] This invention relates to a hair cutter.

[Background technology]

Conventional examples are shown in FIGS. 12 to 14. That is, 100 is a comb-shaped fixed blade having a plow cutting blade groove 100a, 101 is a movable blade, 102 is a reciprocating drive element, 103 is an eccentric cam, 104 is a motor, 1
05 is the drive element presser, 106 is the tip of the fulcrum 10
A switching lever 7 is provided with a driver action point 108 in the middle, and 109 is a switch handle for switching the switching lever 106. The eccentric cam 103 is rotated by the operation of the motor 104, the reciprocating driver 102 is reciprocated, and the movable blade 101 is slid. Also, by operating the switch handle 109 in the direction of the arrow, the reciprocating driver 102 is moved in a direction perpendicular to the sliding direction of the movable blade 101, and the movable blade 101 is cut as shown in FIG. I am able to mow the plow when I back up.

However, hair cutters with this structure,
The housing 110 is shown upper and lower in the figure (divided into two in the radial direction)
When applied to a housing whose main body is cylindrical and cannot be divided into two in the radial direction, a space is required between the drive element 102 and the motor 104, which increases the overall length of the main body. There were flaws. Further, if the block of the reciprocating driver 102 and the block of the motor 104 are made separable, the reciprocating driver 102 cannot be held down and the reciprocating driver becomes unstable.

[Purpose of invention]

The purpose of this invention is that even when applied to a cylindrical body,
To provide a hair cutter whose total length does not become long.

[Disclosure of invention]

The hair cutter of this invention has a blade section that has a comb-shaped movable blade and a fixed blade, and is configured to switch between plowing and cutting by moving the movable blade in a direction perpendicular to the sliding direction, and the movable blade section of the blade section. a reciprocating driver that is movably connected to the blade and drives the movable blade; and a U-shaped reciprocating driver with both sides as fulcrums and arranged to straddle the reciprocating driver so that the both sides are attached to the sides of the reciprocating driver. The blade is provided with a U-shaped lever that engages and operates the reciprocating driver in a direction perpendicular to the sliding direction of the movable blade by operating a U-shaped intermediate piece. Since the U-shaped lever is located on the side of the reciprocating driver, the space between the motor and the reciprocating driver can be narrowed, and the overall length can be shortened. Furthermore, since there are two points of action for driving the reciprocating driver of the U-shaped lever, stress can be distributed. Furthermore, since the point of action moves in substantially the same direction as the direction of movement of the reciprocating drive element for switching between cutting and plowing, there is less power transmission loss and efficiency is high.

Embodiment An embodiment of this invention will be explained based on FIGS. 1 to 11. That is, the first housing 1 is a cylinder with a bottom, and the chassis 2 is mounted inside thereof (FIG. 5). The chassis 2 stores a storage battery 3 and a motor 4 in series, and connects the charging terminal 5 of the storage battery 3 to the first
It is exposed from the rear end of the housing 1. 6,7
is a contact fitting that connects the motor, the storage battery, and the contact plate 9 of the switch handle 8, which will be described later. Further, an anti-slip and hanging ring 10 is rotatably provided at the rear end of the first housing 1. The second housing 11 is a substantially cylindrical body having openings at both ends, and one end is attached to the opening of the first housing 1 with screws 12 (FIG. 3). Also, the second housing 11
The blade part 14 is inserted into the insertion hole 13 on the other end side,
It is fixed by a presser plate 15. In this blade part 14, a fixed blade 17 having a comb-like plowing blade groove 17a is fixed to a holder 16, and a movable blade 1 is fixed to the fixed blade 17.
8 are slidably stacked on top of each other and supported by a spring 19, and the movable blade 18 is provided with a drive section 21 having a boss 20. Further, a cleaning cover 22 is detachably provided on the movable blade 18 side.

As shown in FIG. 5, a guide 23 parallel to the movable blade 18 is provided inside the second housing 11, and a reciprocating driver 24 is slidably disposed on the guide 23. The reciprocating driver 24 has the boss 20 at its tip.
It has a fitting hole 25 into which it fits, a slit 26 for engaging an eccentric shaft at the rear end, and a shaft 27 protruding from both sides. Further, a spring mounting portion 28 is provided on the inner upper surface of the second housing 11, and the upper end of a driver pressing spring 29, which is formed by bending a U-shaped wire spring into a U-shape, is attached to the mounting portion 28 as shown in FIG. Hook, curved part 30 at the bottom end
The inclined portion 31 of the reciprocating driver 24 is pressed, and the reciprocating driver 24 is supported by the guide 23. A fulcrum projection 32 is provided on the inner surface of the second housing 11,
The shaft holes 34 at both ends of the U-shaped lever 33 are pivoted, and elongated holes 35 are formed in both sides of the U-shaped lever 33 to serve as points of action parallel to the longitudinal direction of the U-shaped lever 33. It is fitted onto the shaft 27. A second housing 11 is attached to the middle piece of the U-shaped lever 33.
A long hole 36 is formed in the axial direction of the second housing 11, a switch hole 37 is formed in the lower part of the second housing 11 corresponding to this intermediate piece, and a switch frame 38 is formed in the switch hole 37.
A switch handle 8 is slidably provided on a switch frame 38, and a protrusion 39 of the switch handle 8 is fitted into an elongated hole 36. Further, a switch contact plate 9 is attached to the protrusion 39, and its tip is located in the off opening 7a formed at the end of the contact fitting 7, so that the switch is turned on even if the contact plate 9 slides into contact with any edge of the opening. The relationship is as follows. Second
When the housing 11 is attached to the first housing 1, the eccentric shaft 4 provided on the motor shaft of the motor 4
1 engages with the slit 26 of the reciprocating driver 24.

In this hair cutter, when the switch handle 8 is slid to operate the motor 4, the eccentric shaft 41 is rotated, the reciprocating drive element 24 is reciprocated by the eccentric shaft 41, and the movable blade 18 is slid. 8 and 9 show a cutting state in which the cutting edge of the movable blade 18 is brought close to the fixed blade 17. FIG. That is, when the switch handle 8 is slid toward the blade portion 14, the projection 39 pushes the end of the elongated hole 36 and the U-shaped lever 33 is rotated. Therefore, the shaft 27 is pushed toward the blade portion 14, the reciprocating driver 24 moves along the guide 23, and the movable blade 18 is advanced in the direction of the cutting edge of the fixed blade 17. Since the protrusion 39 is fitted into the elongated hole 36, the switch handle 8 can move within the range of the elongated hole 36. Therefore, in FIG. In the state shown in FIG. 9, the contact plate 9 is in an on state in contact with the contact fitting 7.

Figures 10 and 11 show the plow cutting state. That is, when the switch handle 8 is slid to the side opposite to the blade portion 14, the movable blade 18 moves backward relative to the cutting edge of the fixed blade 17 in the opposite operation to the above, and the movable blade 18 is inserted into the plowing blade groove 17a of the fixed blade 17. The cutting edge of the blade is in position, and it is in the plow-cutting state. In this case as well, since the protrusion 39 of the switch handle 8 can slide within the elongated hole 36, the switch can be operated as OFF in FIG. 10 and ON in FIG. 11.

With this structure, this hair cutter has the following effects. That is, (1) since the point of action 35 of the U-shaped lever 33 moves in almost the same direction as the movement of the reciprocating driver 24 (sliding on the slope), there is little loss of force, and the force applied to the switch handle 8 can be moved efficiently. It can be transmitted to the blade 18.

(2) Because of the U-shaped lever 33, the switching mechanism of the blade portion 14 can be performed in a small space.

(3) Because of the U-shaped lever 33, there are two fulcrums and two points of action, so stress can be dispersed and the shaft 27 and protrusion 32, which are the fulcrum and the point of action, can be made smaller.

(4) By making the force point (elongated hole 36) of the lever 33 into an elongated hole, the blade portion 14 can be turned on and off while cutting or plowing.

(5) The reciprocating driver 2 is installed in the cylindrical second housing 11.
4 and mover pressing spring 29 can be incorporated, the drive element 24 is stable during assembly, and assembly is easy even when separated from the block on the motor 4 side.

[Effect of idea]

According to this invention, by driving the reciprocating driver with a U-shaped lever, it is possible to switch between plowing and cutting without increasing the gap between the driver and the motor, and the two-point engagement between the U-shaped lever and the reciprocating driver is possible. This has the effect of being able to disperse stress and improve force transmission efficiency.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the essential parts of an embodiment of this invention, Fig. 2 is a perspective view of the spring in a pressed state, Fig. 3 is a cross-sectional view of the hair cutter, Fig. 4 is a longitudinal sectional view, and Fig. 5 is a perspective view of the main part of an embodiment of the invention. Exploded perspective view, Figure 6 is a sectional view taken along the line of Figure 4,
FIG. 7 is an external perspective view, FIG. 8 is a sectional view of the cut state in the off state, and FIG. 9 is a sectional view of the on state.
Fig. 10 is a sectional view of the off-state of the plow-cutting state, Fig. 11 is a sectional view of the on-state, Fig. 12 is a plan view of the conventional example, Fig. 13 is a plan view of the cut state, and Fig. 14 is a sectional view of the plow cutting state. FIG. 3 is a plan view of the mowing state. 14...Blade portion, 17...Fixed blade, 18...Movable blade, 24...Reciprocating driver, 33...U-shaped lever.

Claims (1)

[Scope of utility model registration request] A blade portion having a comb-shaped movable blade and a fixed blade and configured to switch between plowing and cutting by moving the movable blade in a direction perpendicular to the sliding direction, and a blade portion that is interlocked and connected to the movable blade of this blade portion. A reciprocating drive element that drives a movable blade, and a U-shape with both side parts as fulcrums, and is arranged to straddle the reciprocating drive element, and the both sides engage with the sides of the reciprocating drive element, forming a U-shape. A hair cutter comprising a U-shaped lever that operates the reciprocating driver in a direction perpendicular to the sliding direction of the movable blade by operating an intermediate piece.