JP2014215034A - Circulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a circulator capable of surely adjusting a depression angle of the circulator even when the circulator is enlarged and allowed to be inexpensively manufactured by a simple configuration.SOLUTION: The circulator includes a case body 10 to which a blade and a blade rotating motor are attached and a support body 1 for supporting the case body 10 by a depression angle adjustment part 20. The depression angle adjustment part 20 includes: a rotary shaft part 231 forming a plurality of positioning engagement parts 231c in an outer peripheral direction; a bearing part 232 attached to the support body 1 and rotatably pivoting the rotary shaft part 231; and a movable engagement member 233 to be elastically engaged with the positioning engagement part 231c of the rotary shaft part 231. The depression angle adjustment part 20 is covered with a lid body 235 attached to the support body 1 and the movable engagement member 233 is pressed to the vicinity of the rotary shaft part 231 by a pressing part 235c formed on the lid body 235.

Description

  The present invention relates to a circulator for mainly enhancing the cooling and heating effect by stirring indoor air.

  Circulators for agitating room air when using an air conditioner to make the room temperature uniform and enhancing the air conditioning effect are widely known. In general, a circulator has a configuration in which a case main body equipped with blades and an electric motor is provided on a leg portion of a base so that the depression angle can be adjusted.

  Regarding this depression angle adjusting mechanism, Patent Document 1 discloses a shaft that is provided on a side portion of a case main body that accommodates a blade and is inserted into a leg portion of the case main body, a bracket that is fixed to the shaft and has a plurality of positioning holes, A depression angle adjustment comprising: a stopper that engages with the positioning hole of the bracket to hold the depression angle; a spring that presses the stopper against the positioning hole; and a stopper cylinder that accommodates the spring and the stopper and is formed on the leg portion. A mechanism is disclosed.

  Further, in Patent Document 2, an air cleaner main body is provided in a support portion so that the rotational position can be adjusted. A circular first rotating body and a second rotating body are combined, and both rotating bodies are provided at the peripheral portion of the first rotating body. An arc-shaped notch and an arc-shaped hole for regulating the relative rotation range of the first rotating body and a recess for setting the rotational position are formed, and the second rotating body is engaged with the arc-shaped notch and the arc-shaped hole of the first rotating body. Adjusting the relative angle according to the angular interval of the recesses within the relative rotation range by providing the mating protrusions and engaging the spring-biased balls with the recesses of the first rotating body. There is disclosed a rotational position adjusting mechanism adapted to perform the above.

  However, when the circulator is enlarged, the depression angle adjusting mechanism disclosed in Patent Document 1 has a concern that an excessive load is applied to the positioning hole of the bracket and a stopper that engages with the hole so that the predetermined depression angle cannot be reliably held. is there. Further, the rotational position adjusting mechanism disclosed in Patent Document 2 has a problem that the mechanism is complicated, the number of parts is increased, and the assembly work is troublesome, resulting in an increase in manufacturing cost.

Utility Model Registration No. 3167613 JP 2000-18654 A

  The present invention has been proposed to solve the above-described problems, and even when the circulator is enlarged, the depression angle of the circulator can be reliably adjusted, and can be manufactured at a low cost with a simple configuration. It aims at providing the circulator which can do.

In order to solve the above problem, in the invention according to claim 1, in a circulator comprising a case body equipped with a blade and a blade rotation motor, and a support body that supports the case body with a depression angle adjusting portion,
The depression angle adjusting portion is provided on a side portion of the case body and has a rotating shaft portion in which a plurality of positioning engagement portions are formed in the outer peripheral direction,
A bearing portion that is provided on the support and pivotally supports the rotating shaft portion;
A movable engagement member that elastically engages with the positioning engagement portion of the rotation shaft portion,
The depression angle adjusting unit is covered with a lid attached to the support,
The movable engagement member is pressed in the vicinity of the rotating shaft portion by a pressing portion provided on the lid.

  According to a second aspect of the present invention, a storage portion for the movable engagement member is provided in the vicinity of the bearing portion, and the movable engagement member storage portion is engaged with the positioning engagement portion of the rotating shaft portion. The movable engaging member to be combined is provided.

  According to a third aspect of the present invention, the movable engagement member includes an elastic body that biases toward the positioning engagement portion of the rotary shaft portion.

  The invention according to claim 4 is characterized in that a presser cover is put on the storage portion of the movable engagement member, and the presser cover is pressed by the presser portion of the lid.

  According to a fifth aspect of the present invention, the positioning engagement portion formed on the rotating shaft portion is an arcuate recess, and the movable engagement member is a coil spring.

  According to invention of Claims 1-5, even if a circulator enlarges, the depression angle of a circulator can be adjusted reliably and it can manufacture at low cost with simple structure. In addition, according to the fifth aspect of the present invention, the positioning engagement portion of the rotation shaft portion is arcuate, and the coil spring is engaged with the engagement portion, so that the rotation shaft portion rotates smoothly, and the depression angle The effects such as easy adjustment can be obtained.

1 is an overall perspective view of a circulator showing an embodiment of the present invention. The whole circulator is shown, (a) is a plan view, (b) is a front view, and (c) is a right side view. It is a disassembled perspective view of the front panel of the case body of the circulator. It is a perspective view of a front panel similarly. It is a disassembled perspective view of the depression angle adjustment part of the circulator in a state where a lid is removed. FIG. 6 is an exploded perspective view of the depression angle adjusting unit in a state where a lid and a movable engagement member are removed. It is a front view of the state which similarly removed the cover of the depression angle adjustment part. It is a disassembled perspective view of the state which removed another cover which shows another embodiment of the depression angle adjustment part of this invention. It is a disassembled perspective view of the state which removed the cover body and the movable engagement member of the depression angle adjustment part of another embodiment similarly. It is a front view of the state which removed the cover body of the depression angle adjustment part of another embodiment similarly.

  Embodiments of the present invention will be described below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. 1 and 2 are overall views of a circulator according to the present invention. A circulator 100 is mounted with a support body 1 and the support body 1 so as to be turnable (swingable) in a left-right direction (horizontal direction) at a predetermined angle. It consists of a base 2. The support main body 1 has a housing portion 12 whose bottom surface portion is formed in an ellipsoid, and leg portions 11 that are erected integrally on the left and right sides of the housing portion 12. The case body 10 in which a blade and a blade rotation motor (both not shown) are mounted is supported by the depression angle adjusting unit 20 so as to be rotatable in the vertical direction (can be depressed).

  The entire support body 1 is formed of a synthetic resin material into a substantially U shape, and electrical equipment for controlling the swing mechanism of the circulator body (case body 10), the blade rotation motor, and the like is housed inside the bottom surface. . Various switch buttons 24 such as a power switch, a swing switch, and an air volume change switch are arranged in parallel at the center of the upper surface of the housing 12.

  The case body 10 is formed from a synthetic resin material such as polypropylene in a substantially drum shape, and is configured by combining a substantially disk-shaped front panel 101 and a disk-shaped rear panel 102 having a swelled rear part. Yes. The front panel 101 is formed with spiral ribs 101a to generate a whirl, and the rear panel 102 is formed with ribs 102a that reduce suction resistance. The front panel 101 is made of a synthetic resin material having high impact resistance. Further, a handle portion 102b is provided on the upper portion of the rear panel 102.

  As shown in FIGS. 3 and 4, the front panel 101 includes a substantially bowl-shaped main panel 121 and a substantially ring-shaped reinforcing panel 122, and the spiral rib 101 a is formed on the front surface of the main panel 121. Is formed. The front edge of the main panel 121 is formed with a fitting portion 121b having a slightly smaller diameter than the outer diameter of the outer peripheral surface portion 121a, and the reinforcing panel 122 is fitted to the fitting portion 121b.

  Specifically, on the outer peripheral surface portion 121a of the main panel 121, slit portions 121c extending in the outer peripheral surface width direction are formed at a plurality of locations in the circumferential direction, and screw holes 121d are formed at the tip portions of the slit portions 121c. Has been. Corresponding to the slit portion 121c, the inner peripheral surface portion 122a of the reinforcing panel 122 is formed with screw fixing portions 122b at a plurality of locations in the circumferential direction. Then, the reinforcing panel 122 is fitted to the main body panel fitting portion 121b so that the screw fixing portion 122b and the slit portion 121c coincide with each other, and a fixing screw (not shown) is inserted into the screw hole 121d of the slit portion 121c to reinforce. The main panel 121 and the reinforcing panel 122 are integrally fixed by screwing to the screw fixing part 122b of the panel 122. Note that engaging claw portions 121e that engage with the rear panel 102 are formed at a plurality of locations in the circumferential direction on the rear edge of the main panel 121.

  As described above, by fixing the reinforcing panel 122 to the main panel 121, the strength of the front edge of the front panel 101 is increased, and even if the circulator 100 is increased in size and the air volume is increased (even if the wind becomes strong). The front edge of the front panel 101 can be prevented from vibrating due to the wind pressure, or the joint portion with the spiral rib 101a can be prevented from being damaged, and a large amount of air can be stably blown through the front panel 101. .

  As shown in FIGS. 5 to 7, the depression angle adjustment unit 20 includes a rotation shaft portion 231 formed on the left and right side surfaces of the outer peripheral surface portion of the rear panel 102 of the case body 10, and the left and right support legs 11 of the support body 1. A ring-shaped bearing portion 232 formed at the upper end portion and a disk-shaped lid 235 that covers the ring-shaped bearing portion 232 are provided. 5 to 7 show the depression angle adjustment unit 20 provided on one support leg 11, the other depression angle adjustment unit 20 has the same configuration.

  A circular concave bearing housing portion 234 is formed on the upper portion of the support leg 11, and an insertion hole (not shown) of the rotating shaft portion 231 of the case body 10 is opened at the center of the bearing housing portion 234. A ring-shaped bearing portion 232 is formed in the peripheral direction of the insertion hole. The left and right side portions of the ring-shaped bearing portion 232 are reinforced by ribs 234b. The ring-shaped bearing portion 232 does not have to be a complete ring shape, and here has a cut ring shape in which a notch portion 232a is formed at the lower end portion.

  A reverse concave movable engagement member storage portion 234a is formed on the ring-shaped bearing portion 232 so as to protrude outward from the ring, and the movable engagement member 233 is stored in the movable engagement member storage portion 234a. ing. As shown in FIG. 6, the movable engagement member 233 includes a coil spring 233a and a pin-shaped engagement piece 233b inserted into the coil spring 233a. The engagement piece 233b is a rotating shaft described later by the coil spring 233a. The portion 231 is biased in the direction of the positioning engagement portion 231c. In the present invention, the engagement piece 233b can be omitted.

  The rotating shaft portion 231 has a bottomed annular ring shape as a whole, and includes a disc portion 231b and a ring portion 231a formed on the outer periphery thereof. The ring portion 231a has a ring shape that is coaxial with the ring-shaped bearing portion 232, and has a diameter that is rotatably inserted into the ring-shaped bearing portion 232. On the outer peripheral surface of the ring portion 231a, a plurality of concave and convex positioning engagement portions 231c are continuously formed with a predetermined arc length, and one end of the continuous positioning engagement portion 231c of the disc portion 231b. Near the portion, a substantially T-shaped rotation restricting / locking piece 231e protrudes. The rotation restricting / locking piece 231e protrudes outside the ring-shaped bearing portion 232 and enters a lid ring portion 235a described later. In addition, guide pieces 231d and 231d that are in contact with the inner surface of a lid ring portion 235a described later are formed near both ends of the positioning engagement portion 231c of the ring portion 231a.

  As shown in FIG. 5, the lid 235 is formed with a ring portion 235a having an outer diameter substantially the same as the ring-shaped bearing portion 232 on the back surface portion, and a pair of ring portions 235a has a pair of ring portions 235a. The rotation restricting / engaging projection 235b is formed to face a position separated in the inner circumferential direction. The shape of the rotation restricting / engaging protrusion 235b is arbitrary, but here it is formed in a substantially triangular cross section. The rotation restricting / engaging protrusion 235b interferes with the rotation restricting / engaging piece 231e of the rotation bearing 231, and is provided at a position where the rotation bearing 231 does not rotate more than a predetermined angle clockwise or counterclockwise. Range restrictions have been made.

  In addition, a pressing portion 235c of a movable engagement member 233 formed of a plurality of single plates protrudes from the back surface of the lid 235 at a position corresponding to the movable engagement member storage portion 234a. A plurality of locking claws 235e that locks with locking grooves 234c formed on the inner edge of the movable engaging member storage portion 234a project from the outer peripheral surface 235d of the lid 235.

  The above-described depression angle adjusting unit 20 is configured such that the ring body 231a of the rotating shaft portion 231 of the case body 10 is inserted into the ring-shaped bearing portion 232 formed in the bearing housing portion 234 of the leg portion 11, whereby the case body 10 is legged. The part 11 is rotatably supported. Further, the lid 235 is fitted on the bearing storage portion 234, and the locking claw 235e is engaged with the locking groove 234c formed on the inner edge portion of the bearing storage portion 234, whereby the lid 235 is engaged with the bearing storage portion 234. It is attached to.

  When the cover body 235 is attached to the bearing housing portion 234, the guide piece 233d of the rotating shaft portion 231 comes into contact with the inner surface portion of the cover body ring portion 235a, and the edge portion of the cover body ring portion 235a and the ring-shaped bearing portion 232 abut. . Further, the movable engaging member 233 accommodated in the movable engaging member accommodating portion 234a is pressed by the presser portion 235c of the lid 235 (for this reason, even if the engaging piece 233b is not provided, it can be moved only by the coil spring 233a. It serves as the engaging member 233).

  When the case body 10 is rotated in the vertical direction, the rotary bearing portion 231 rotates while sliding on the inner peripheral surface of the ring-shaped bearing portion 232. At this time, the movable engagement member 233 accommodated in the movable engagement member accommodation portion 234a is elastically engaged with the positioning engagement portion 231c at a position corresponding to the rotation angle of the rotary bearing portion 231. To change the depression angle, when the case body 10 is pushed and rotated to a desired angle, the movable engagement member 233 is disengaged from the positioning engagement portion 231c at the current position, and is engaged with the positioning engagement portion 231c at the position where rotation is stopped. It will be. In this way, the vertical angle adjustment of the case body 10 is performed.

  The rotation angle (the depression angle) of the case body 10 is restricted to a predetermined angle range. In the present embodiment, when the case body 10 is rotated 90 degrees so as to face upward from the vertical position shown in FIG. Accordingly, the rotation regulation locking piece 231e interferes with one rotation regulation locking projection 235b of the lid 235 (here, the rotation regulation locking projection 235b formed at the intermediate portion of the lid ring portion 235a), and the case body. When 10 is rotated to the original vertical position, it interferes with the other rotation regulating locking projection 235b. As described above, the rotation restricting / engaging projections 235b and 235b of the lid 235 are provided at positions that restrict the rotation angle of the case body 10 so that the case body 10 does not rotate more than a predetermined angle.

  8 to 10 show another embodiment of the present invention, and the movable engagement member storage portion 234a for storing the movable engagement member 233 is formed near the end of the notch 232a of the ring-shaped bearing portion 232. The presser cover 236 is attached to the movable engagement member storage portion 234a. As shown in FIG. 9, the presser cover 236 is a substantially U-shaped member having a front surface portion 236a and left and right side surface portions 236b. A cylindrical protrusion 236c is formed on the front surface portion 236a, and one side surface portion is formed. Guide ribs 236d are formed.

  Further, as shown in FIG. 10, an engaging portion 236e into which the guide rib 236b of the presser cover 236 is engaged is formed on one side portion of the movable engaging member storage portion 234a, and a presser rib 236f is formed on the other side portion. The both side surface parts 236b of the presser cover 236 are sandwiched between the engaging portions 236e and the presser ribs 236f.

  Further, as shown in FIG. 8, a pressing portion 235 c that contacts the protruding portion 236 c of the pressing cover 236 is formed on the back surface portion of the lid 235 (in this embodiment, rib-shaped protrusions are formed in the lateral direction). When a cover body 235 is fitted on the bearing storage portion 234, the presser portion 235c comes into contact with the projection portion 236c and presses the presser cover 236 against the movable engagement member storage portion 234a. Yes. In this embodiment as well, the engagement piece 233b constituting the movable engagement member 233 may be omitted. Other configurations of the depression angle adjusting unit 20 are the same as those in the above-described embodiment, and thus description thereof is omitted.

  The above-described embodiment is merely an example of the present invention, and the configuration of the depression angle adjusting unit 20 can be arbitrarily changed within the scope described in the claims of the present invention. Further, the support body 1 and the case body 10 are not limited to the illustrated form, and can be applied to any circulator having a depression angle adjusting unit.

DESCRIPTION OF SYMBOLS 1 Support main body 2 Base 10 Case body 101 Front panel 122 Reinforcement panel 102 Rear panel 11 Leg part 20 Angle adjustment part 231 Rotating shaft part 231a Ring part 231b Disk part 231c Positioning engagement part 231e Rotation regulation locking piece 232 Ring shape Bearing part 233 Movable engagement member 234 Bearing storage part 234a Movable engagement member storage part 235 Lid body 235a Ring part 235b Rotation restriction locking projection 235c Presser part

Claims (5)

In a circulator comprising a case body equipped with a blade and a blade rotation motor, and a support body that supports the case body with a depression angle adjusting unit,
The depression angle adjusting portion is provided on a side portion of the case body and has a rotating shaft portion in which a plurality of positioning engagement portions are formed in the outer peripheral direction,
A bearing portion that is provided on the support and pivotally supports the rotating shaft portion;
A movable engagement member that elastically engages with the positioning engagement portion of the rotation shaft portion,
The depression angle adjusting unit is covered with a lid attached to the support,
The circulator characterized in that the movable engagement member is pressed in the vicinity of the rotary shaft portion by a pressing portion provided on the lid.   A storage portion for the movable engagement member is provided in the vicinity of the bearing portion, and the movable engagement member that engages with the positioning engagement portion of the rotating shaft portion is provided in the movable engagement member storage portion. The circulator according to claim 1.   The circulator according to claim 1, wherein the movable engagement member includes an elastic body that biases toward the positioning engagement portion of the rotating shaft portion.   The circulator according to claim 2 or 3, wherein a presser cover is placed on the storage portion of the movable engagement member, and the presser cover is pressed by the presser portion of the lid.   The positioning engagement portion formed on the rotating shaft portion is an arc-shaped recess, and the movable engagement member is a coil spring that engages with the arc-shaped recess. 4. The circulator according to any one of 4.