JP2593905Y2 - Fan - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan in which a blower can be moved up and down with respect to the fan body.

[0002]

2. Description of the Related Art Conventionally, electric fans have been used, for example, in Japanese Utility Model Laid-open No. 2-90.
As described in Japanese Patent Publication No. 497, a cap is provided at the upper end of the support section of the fan main body, and a slide pipe projecting from the support section through the cap is provided so as to be vertically movable.
At the upper end of the slide pipe, a fan and a blower having a fan motor for rotating the fan are supported, and further, inside the support portion, upward by an urging force that balances the weight including the slide pipe and the blower. A biasing spring body is provided.

Further, the slide pipe is provided with a concave groove along the longitudinal direction, while the cap is provided with a fitting portion which fits into the concave groove, so that the slide pipe is prevented from rotating with respect to the column. .

Further, the cap is provided with a lock means for releasably locking the slide pipe at the lowest position, the highest position, and the like with respect to the support portion.

[0005]

In the conventional electric fan, the spring body allows the upward movement of the blower to be operated lightly and the blower is balanced so as to be stopped at an arbitrary height. The balance is lost due to the variation in elasticity of the rubber. Therefore, for example, at the time of operating the swinging knob or the operation of adjusting the elevation angle of the blower, the slide pipe unnecessarily moves up and down, and the height of the blower changes.

Conventionally, as a countermeasure against unnecessary vertical movement of the slide pipe, the fitting between the cap and the slide pipe is tight, and the vertical movement of the slide pipe is appropriately restricted by the frictional force generated at the fitting portion. I am trying to do it. However, in general, both the cap and the slide pipe are formed of synthetic resin, and the dimensional variation increases the frictional force that makes tight fitting, which may cause the slide pipe to move up and down when adjusting the height of the blower. .

As a countermeasure against unnecessary vertical movement of the slide pipe, for example, as described in Japanese Patent Application Laid-Open No. 62-72993 or Japanese Patent Application Laid-Open No. 62-297595, a slide pipe is provided in a longitudinal direction. A plurality of engaging recesses are provided along the support column, and a claw member that engages with the engaging recess and a leaf spring that urges the claw member toward the engaging recess are provided on the support portion, so that unnecessary vertical movement of the slide pipe is achieved. There is a regulation structure in which movement is elastically regulated. However, adding such a restricting structure to a column already provided with the locking means has a problem that the column becomes large.

The present invention has been made in view of the above points, and has a restriction structure for elastically restricting unnecessary vertical movement of a slide pipe, and a structure in which the slide pipe is fixed to a column.
Adopted <br/> Ru locking means to restrict vertical movement by engagement with the uppermost position and the lowermost position, pay these configurations together in a small space in the upper portion of the pillar portion, miniaturization struts Can ,
Furthermore, unnecessary vertical movement of the slide pipe is reliably regulated.
Can, it is an object to provide a fan which also assemblability Ru can be improved.

[0009]

According to the present invention, there is provided a fan body having a column, a cap provided at an upper end of the column, a slide pipe projecting up and down from the column through the cap, and a slide pipe. A blower provided at the upper end of the pipe, a spring body for biasing upward with a biasing force that balances the weight of the slide pipe and the blower, and a highest position and a lowest position of the slide pipe with respect to a support portion.
Bei example a locking means having a release portion for releasing engagement with regulating the vertical movement and locking in descending position, the spring member
Connect one end to the cap and the other end to the slide
Coupled to the lower of type, the the slide pipe, only setting the groove along the longitudinal direction, upper side and lower side of the recessed groove
At the highest and lowest positions of the slide pipe
Elastic and provided with a locking recess, a plurality of engaging recesses in the longitudinal direction in the groove, the cap, the fitting portion and the engaging recess to be fitted in the concave groove of the slide pipe An engaging portion having a claw portion capable of being engaged and disengaged is provided integrally , and a storage portion for storing the locking means outside the engaging portion , and a facing portion of the storage portion facing the engaging portion.
The locking means is provided integrally with a window hole from which the release portion of the locking means projects ,
Can be disengaged from the locking recess at the ascending position and the lowest position
A locking member to be engaged with the lock member.
And a portion between the release portion and the engagement portion.
In the direction in which the release part projects from the window hole, lock the lock member.
Place a spring that urges in the direction to engage the stop recess.
It is a thing.

[0010]

[Function] In the present invention, even when the lock means is unlocked,
The claw portion of the engaging portion of the cap elastically engages with the engaging concave portion of the slide pipe, thereby preventing the slide pipe from unnecessarily moving up and down due to a variation in elasticity of a spring body for urging the slide pipe upward. .

In addition, when the slide pipe is moved up and down, the slide pipe can be prevented from moving up and down unnecessarily without tightly fitting the cap and the slide pipe. Can be performed stably and satisfactorily, and the claw portion of the engaging portion repeats intermittent engagement and disengagement with respect to the plurality of engaging concave portions, so that a good operational feeling and a sense of stability can be obtained.

The cap provided at the upper end of the column has a fitting portion fitted into the groove of the slide pipe and a claw elastically engaged with the engagement concave portion of the slide pipe, so that the slide pipe is unnecessary. At the highest position and the lowest position with respect to the column ,
Housing unit for housing a locking means for regulating the vertical movement and engagement, and so release button of the locking means is provided integrally with the window hole projecting, parts and assembly steps is small,
The engaging portion, the locking means, and the like are housed together in a small space in the cap .

Further, the slide pipe is locked by the locking means.
Locks at the highest position and the lowest position to restrict vertical movement
Therefore, in those positions,
Without even sending Futei moves up and down, the release of the locking means
Can be released only by pressing against the spring
As a result, unnecessary vertical movement of the blower is reliably restricted.

Further, the spring of the locking means is released.
By placing it between the
Of the spring inside the closed cap
Then, engage the claws of the engaging part with the slide pipe with the spring.
Engaging force that presses toward the recess and the claw engages the engaging recess
And the unnecessary vertical movement of the slide pipe is reliably regulated.
It is.

Further, one end of the spring body is connected to the cap.
And connect the other end to the bottom of the slide pipe.
Attach the spring body to the cap and slide pipe
It is possible to incorporate it into the column together in the state,
The performance is improved.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 5, reference numeral 1 denotes an electric fan main body. The electric fan main body 1 has a cylindrical support 3 erected from a base 2, and a cap 4 is attached to the upper end of the support 3 and the cap 4 is attached. A slide pipe 5 protrudes vertically from the column 3 through the support 4.

Reference numeral 11 denotes a blower. The blower 11 is attached to the upper end of the slide pipe 5 via a neckpiece 12. A drive unit 13 having a fan and a motor swing mechanism (not shown) is mounted on the neckpiece 12. A fan 14 that is supported and is rotationally driven by a fan motor is mounted on the front surface of the drive unit 13 and a guard 15 that covers the fan 14 is mounted.

As shown in FIGS. 1, 2 and 4, the slide pipe 5 is formed of a synthetic resin into a cylindrical shape, and has a lower end formed with a biasing force balanced with the weight of the slide pipe 5 and the blower 11. A spring body 21 biasing upward is attached. The spring body 21 is formed of a band-shaped spring. One end of the spring body 21 is connected to the cylindrical portion 32 of the cap 4, and the other end is connected to a reel portion 22 attached to a lower portion of the slide pipe 5. It has elasticity in the direction of winding on 22,
That is, the slide pipe 5 is urged upward by an urging force that balances the weights of the slide pipe 5 and the blower 11.

A concave groove 23 is formed on the rear surface of the slide pipe 5 along the longitudinal direction, and upper and lower ends of the concave groove 23 correspond to predetermined positions of the lowest position and the highest position of the slide pipe 5. As a result, a locking concave portion 24 is formed, and a plurality of engaging concave portions 25 having a semicircular cross section are formed at predetermined intervals along the longitudinal direction of the concave groove 23.

As shown in FIGS. 1 to 4, the cap 4 is made of synthetic resin and has an annular portion 31 attached to the upper portion of the column portion 3, and is disposed in the column portion 3 so that the slide pipe 5 can be vertically moved. The mating cylindrical portion 32 and the bulging portion 33 as a storage portion fitted into the notch portion 3a at the rear of the column portion 3 are integrally formed.

The cylindrical portion 32 is formed in a cylindrical shape into which the slide pipe 5 is fitted so as to be slidable up and down, and an opening 34 is formed corresponding to the bulging portion 33. A fitting portion 35 that fits into the concave groove 23 of the slide pipe 5 is formed on the upper edge of the opening 34 of the cylindrical portion 32.
Is formed in the lower part of the fitting part 35,
An engaging portion 36 that can be elastically disengaged from the main body is integrally formed so as to protrude. On the inner surface of the distal end of the engaging portion 36, a claw portion 37 is formed so as to be elastically engageable with the engaging concave portion 25.

The swelling portion 33 is provided with a locking means 41 for releasably locking the slide pipe 5 with respect to the support portion 3. As shown in FIG. 1, the lock means 41 has a lock member 43 pivotally supported by a support shaft 42 inside a bulging portion 33, and a lock member 43 A locking portion 44 is formed in the concave portion 24 so as to be disengageable, and a release button portion 45 is formed on the outer surface of the upper end portion as a release portion projecting from the window hole 33a of the bulging portion 33. An accommodation portion 47 for accommodating a spring 46 disposed between the engagement portion 36 and the inner surface is formed on the inner surface. The lock member 43 is normally urged by the spring 46 to rotate clockwise in FIG.

Next, the operation of this embodiment will be described.

In the state shown in the figure, the blower 11 is raised up to the highest position, and the locking portion 44 of the lock member 43 is fitted in the locking recess 24 on the lower side of the slide pipe 5, and the slide pipe 5 with respect to the column 3 is held. In a state where vertical movement is restricted. In this state, the claw portion 37 of the engaging portion 36 of the cap 4 is elastically engaged with the engaging concave portion 25.

When the height position of the blower 11 is adjusted to be low, the release button 45 of the lock member 43 protruding from the bulging portion 33 of the cap 4 is pushed to operate the locking member 43. The lock is released by removing the lock 44 from the locking recess 24, and is lowered to a desired height by holding the slide pipe 5 or the like.

When the lock of the lock member 43 is released, the engagement portion
Since the claw portion 36 of 36 is elastically engaged with the engagement recess 25,
Even if the spring body 21 has uneven elasticity, the slide pipe 5
Can be prevented from moving up and down unnecessarily.

Further, when the slide pipe 5 is moved downward, it is possible to prevent the slide pipe 5 from unnecessarily moving up and down without tightly fitting the cap 4 and the slide pipe 5 as in the related art. Since the lowering operation of the slide pipe 5 can be performed stably and satisfactorily, and the claw portion 37 of the engaging portion 36 intermittently engages and disengages with the plurality of engaging concave portions 25, thereby providing a good operational feeling. And a sense of stability is obtained.

Then, the blower 11 is lowered to a desired height in an unlocked state (the locking portion 44 of the locking member 43 is
Even if the claw portion 37 of the engagement portion 36 is elastically engaged with the engagement concave portion 25, for example, when operating the swing knob on the blower 11, At the time of the adjusting operation, it is possible to prevent the slide pipe 5 from unnecessarily moving up and down and changing the height of the blower 11.

Therefore, even in the unlocked state, unnecessary vertical movement of the slide pipe 5 can be restricted.
At the time of adjusting the height of 11, the vertical operation of the slide pipe 5 can be stably and satisfactorily performed, and good operational feeling and stability can be obtained.

When the height position of the blower 11 which has been lowered halfway is adjusted high, the blower 11 is raised to a desired height by holding the slide pipe 5 or the like. At this time, the same operation and effect as those at the time of descending can be obtained.

[0032]

According to the present invention, according to the present invention, a cap provided at the upper end of a support portion is provided with a fitting portion which fits into a groove of a slide pipe,
An engagement portion for preventing the slide pipe from moving up and down unnecessarily by the claw portion elastically engaging with the engagement concave portion of the slide pipe;
Slide pipe at the highest position and the lowest position with respect to the support
Housing unit for housing a locking means for regulating the vertical movement and locking in descending position, and so cancel part of the locking means is provided integrally with the window hole projecting, parts and assembly steps is small,
The engaging portion, the locking means, and the like can be housed together in a small space in the cap, and the support portion can be downsized.

Moreover, the slide pipe is locked by the locking means.
Locks at the highest position and the lowest position to restrict vertical movement
Therefore, in those positions,
Also, the blower does not move up and down, and the lock release means
Can be released only by pressing against the spring,
Unnecessary vertical movement of the blower can be reliably regulated.

Further, the spring of the locking means is released
By placing it between the cap and the engaging portion of the cap, the spring
With the claw of the engaging part facing the engaging concave part of the slide pipe.
To increase the engagement force at which the claw engages with the engagement recess,
Unnecessary up-and-down movement of the id pipe can be reliably controlled.

Further, one end of the spring body is connected to the cap.
And connect the other end to the bottom of the slide pipe.
Attach the spring body to the cap and slide pipe
It can be assembled together into the column in the state, improving the ease of assembly.
I can do it.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view showing one embodiment of a fan of the present invention.

FIG. 2 is a perspective view of a part of the embodiment.

FIG. 3 is a perspective view of a part of the cap of the embodiment.

FIG. 4 is a perspective view of the electric fan body of the embodiment.

FIG. 5 is a side view of the whole electric fan of the embodiment.

[Explanation of symbols]

1 fan main body 3 strut 4 cap 5 slide pipe 11 blower 21 spring element 23 groove 24 engagement recess 25 bulging portion 33a window hole 35 engaging portion 36 engaging portion 37 claw portion of the engaging recess 33 accommodating section 41 Lock means 45 Release button as release section

Claims (1)

(57) [Scope of request for utility model registration] 1. A fan body having a support, a cap provided at an upper end of the support, a slide pipe projecting vertically from the support through the cap, and a blower provided at an upper end of the slide pipe. When the spring member for biasing upward by the urging force of the balance weight of the slide pipe and blower, the vertical movement of the slide pipe and engaging in uppermost position and lowermost position relative to the strut Tadashi
E Bei and locking means having a release portion for releasing engagement while braking, as well as connecting one end of the spring member to the cap, the other end
Was connected to the lower portion of the slide pipe, the slide pipe, set a groove along the longitudinal direction,
At the upper and lower ends of this groove, slide pipes
Provide locking recesses corresponding to the ascending position and the lowest position
Together, a plurality of engaging recesses in the longitudinal direction in the groove, the cap elastically to disengageably the fitting portion and the engaging recess to be fitted in the concave groove of the slide pipe An engaging portion having a claw portion is provided integrally with the engaging portion.
Housing part for the outside housing said locking means, and this
The window hole <br/> release portion of the locking means in a position opposed to the engagement portion of the accommodating portion protrudes integrally formed, said locking means, our uppermost position of the slide pipe
And at the lowest position, which engages with the locking recess in a detachable manner.
A lock member, and the lock member is provided with the release portion.
A release portion is provided between the release portion and the engagement portion.
The locking member is engaged with the locking recess in the
A fan characterized by arranging a spring for urging in a direction to be combined .