JPH0740920Y2 - Support structure for fin connection frame of air conditioning outlet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a fin connecting frame supporting structure for connecting a plurality of wind direction adjusting fins arranged at an air conditioning outlet to each other.

[Prior Art] Conventionally, as a so-called swing louver type air conditioning outlet capable of driving a power source such as an electric motor to oscillate a fin body for wind direction adjustment, a ventilation mode of conditioned air is used. It is possible to switch between an automatic variable mode in which the wind direction is changed automatically and periodically with the automatic swing of the fin body, and a fixed mode in which the wind direction is set and fixed in a desired direction by manual adjustment. Is generally well known.

In this type of air conditioning outlet, various problems caused by providing the clutch mechanism between the fin body and the power source side, that is, for example, the trouble of manual switching operation of the clutch mechanism or forgetting to turn it off, or In the case of automatic switching, in order to solve the problem such as a decrease in the connecting force in the clutch portion due to long-term use, the applicant of the present application has proposed a biaxial swing louver in Japanese Patent Application No. 01-47105. We proposed an air-conditioning blower equipped with. By making the swing louver a two-axis type, that is, in the fin body,
By providing a first swing shaft that serves as a swing fulcrum when driving the power source and a second swing shaft that serves as a swing fulcrum during manual operation, it is possible to switch the blowing mode without using a clutch mechanism. The above-mentioned conventional problems can be solved.

By the way, in the above-mentioned two-axis swing louver, in order to reciprocally oscillate each fin body in the automatic variable mode, each first oscillating shaft serving as an oscillating fulcrum in this air blowing mode is set to the case side. It must be fixed in the swing direction. On the other hand, at the time of switching to the fixed mode, in order to manually adjust the direction of each fin body, in the state where each second swing shaft, which is the swing fulcrum in this mode, is fixed in the swing direction, The first swing shaft needs to be movable with respect to the case.

Therefore, the applicant of the present application further discloses, in Japanese Patent Application No. 02-45058, that the link members that connect the first swing shafts to each other are formed of a substantially rectangular frame, and the frame is air-conditioned. It is proposed that a guide groove portion provided on the case side of the air outlet is slidably fitted, and a friction member having a predetermined spring characteristic is interposed at a sliding contact portion between the frame body and the guide groove portion.

With this configuration, when the frame body slides (that is, the first
A frictional force can be applied to the frame body (when the swing shaft is moved), and the frame body is fixed to the case by the frictional force in the automatic variable mode, while the manual operation is performed by the operation force. It becomes possible to move the body. In addition, when adjusting the wind direction by manual operation, the friction member imparts an appropriate degree of moderation, a good operation feeling can be obtained, and the direction setting state of the fin body can be stably maintained.

[Problems to be solved by the invention] However, when a friction member (for example, a spring) is interposed in the sliding contact portion between the frame body and the guide groove portion as described above, the biasing force of the spring is evenly applied to the frame body. Difficult to act on,
The support of the frame body in the case may be unstable, and if the biasing force is too strong, the swinging motion of the fin body may be adversely affected.

Further, when a frictional force is applied to the frame body by interposing a friction member in the sliding contact portion, the gap size between the frame body and the guide groove has a great influence on the frictional force. Become. On the other hand, when the frame body and case are manufactured, inevitably variations in size or slight geometrical distortion / deformation occur during mass production. Therefore,
The gap size obtained as a combined size of the frame body and the case has a larger variation, the frictional force acting on the frame body is not constant, and it is difficult to suppress the variation in the operating force for each product. The problem may arise.

Not only the two-axis swing louver, but also the air-conditioning outlet provided with the conventional single-axis swing louver, and also the air-conditioning outlet for adjusting the wind direction only by manual adjustment, the plurality of fin bodies are framed. Shaped connection member (fin connection frame)
In the case of those configured to be connected and supported by each other, the same problem as described above may occur.

The present invention has been made in view of the above problems, and it is possible to stabilize the operation force at the time of adjusting the wind direction in an air conditioning outlet having a fin connecting frame that connects a plurality of fin bodies for adjusting the wind direction to each other. An object of the present invention is to provide a support structure for a fin connection frame of an air conditioning outlet that can be used.

[Means for Solving the Problem] For this reason, the present invention includes a plurality of wind direction adjusting fin bodies and a substantially rectangular fin coupling frame that couples the fin bodies to each other. An air conditioning outlet in which the fins are swung to adjust the direction of the conditioned air by sliding the fins, and one end of the air conditioning outlet is fixed to the case side. On the other hand, a connecting frame support member having a holding portion having a predetermined spring characteristic is formed on the other end side, and the fin connecting frame has one side slidably held by the holding portion, It is configured to be supported by the connecting frame support member.

[Effect of the Invention] According to the present invention, the fin connecting frame is supported by slidably sandwiching one side of the fin connecting frame by the sandwiching portion, so that the fin connecting frame operates when sliding the connecting frame. In order to make the frictional force constant, it is sufficient to maintain the dimensional accuracy of the one side of the fin connection frame, that is, the plate thickness of the frame, to be constant. Precision control is much easier to perform than if the dimensions were kept constant. As a result, it is possible to significantly reduce the variation in the frictional force due to the variation in the size and shape of the parts as compared with the conventional case, and it is possible to effectively suppress the variation in the operating force for each product.

Further, only one side of the fin connecting frame is clamped, and the fin connecting frame itself does not receive a vertical urging force from the outside as in the conventional case. Therefore, there is no possibility that the spring force for supporting the connecting frame adversely affects the stability of supporting the fin connecting frame and the swinging motion of the fins.

[Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings, in the case of being applied to, for example, a blower outlet of an air conditioner for an automobile having a two-axis swing louver. .

FIG. 1 is a front explanatory view of an air conditioning outlet of an automobile air conditioner according to this embodiment. As shown in FIG. 1, the front surface of the louver housing 1 forming the air conditioning outlet has a predetermined shape. For example, two columns 5 and 6 are provided which are spaced apart from each other and extend in the vertical direction, and the air conditioning outlet is divided into three outlet portions 2, 3 and 4 by these columns. Each of these outlets 2, 3, 4 is provided with, for example, two horizontal fins 8 and 9 that extend in a substantially horizontal direction, respectively, and the space behind the horizontal fins 8 and 9 extends in a substantially vertical direction. Three
Vertical fins 11, 12, 13 of the book are arranged respectively.

2 and 3 are a plan explanatory view and a longitudinal sectional explanatory view showing the internal structure of the air conditioning outlet, respectively.
As shown in these figures, the louver housing 1 is
By fitting and locking the front housing 15 forming the front part of the air conditioning outlet and the plurality of claw portions 16b in the respective locking holes 15b of the front housing 15, the front housing 15 is fitted and fixed to the rear portion of the front housing 15. The rear housing 16 is provided with two ribs 17 and 18 extending forward corresponding to the columns 5 and 6 of the front housing 15. And the ribs 17, 18
Connecting members 19 and 20 for supporting the horizontal fins 8 and 9 are sandwiched between the above-mentioned columns 5 and 6 and the front housing 15 and the rear housing 16 on the left and right sides. There is.

Protrusions 21 and 22 projecting in the longitudinal direction are provided at the left and right ends of each of the horizontal fins 8 and 9, and the protrusions 21 and 22 can be swung around the horizontal axis by the connecting member 19 or 20. It is supported, and the upper and lower horizontal fins 8 and 9 are connected to each other by the upper and lower link members 2.
They are connected by 3 so that they can swing in the vertical direction in conjunction with each other. Of the horizontal fins 8 and 9, for example, the upper horizontal fin 8 is fitted with operation knobs 10 for manually adjusting the directions of the horizontal fins 8 and 9 and the vertical fins 11, 12 and 13, respectively. Has been done.

The vertical fins 11, 12, 13 are respectively provided with first and second swing shafts 24, 25. For example, as shown in FIGS. 4 and 5, a top plate 27, a bottom plate 28, and left and right columns 29 and 30 are arranged in a frame body 26 (louver frame) formed in a rectangular shape. The first swing shaft 24 has the upper plate 27 and the bottom plate 28.
By being fitted in a pair of upper and lower hole portions 27h, 28h which are provided to face each other and constitute a bearing portion, they are rotatably supported in the left-right direction.

In this embodiment, as shown in FIG. 6, the rear housing 16
A frame support member 31 that supports the louver frame 26 is attached to the front end of the upper plate 16a. The frame support member 31 is formed by bending a plate material having a predetermined spring characteristic such as stainless steel. As shown in detail in FIGS. 7 to 9, the slit portion 16s of the rear housing upper plate 16a is formed. , 16s, left and right side wall portions 31b, fixed portions 31d provided with claw portions 31c, 31c formed by cutting and raising a plate material, and sandwiching portion 31a composed of two vertically extending portions , 31a, and a pair of upper and lower protrusions 31e is formed on each sandwiching portion 31a, and the vertical distance D between the protrusions 31e is larger than the plate thickness T of the upper plate 27 of the louver frame 26. It is set to be smaller by a predetermined amount. By sandwiching the upper plate 27 between the upper and lower protrusions 31e, the sandwiching portions 31a, 31a are elastically deformed, and the upper plate 27 is sandwiched by the reaction force (spring force) to support the louver frame 26. Is able to.

In the frame supporting member 31, the left and right side wall portions 31b are inserted into the slit portions 16s of the rear housing upper plate 16a, and the claw portions 31c, 31c are inserted into the rectangular holes 16h of the rear housing upper plate 16a.
It fits in 16h and is fixed to the case side. Then, the vertical fins 11, 12, 13 are attached to the louver frame 26 to form a unit body, and then the upper plate 27 of the louver frame 26 is held by the holding portions 31a, 31a, whereby the unit body is formed. It can be assembled in the louver housing 1, and the assembling work of the vertical fins 11, 12, 13 can be simplified. At this time, the bottom plate 28 of the louver frame 26 includes the step portion provided on the front housing 15 and the rear housing.
A guide groove 1a formed by 16 front ends and extending in the left-right direction
It is assembled so that it can be freely fitted therein (see FIG. 3).

When the vertical fins 11, 12, 13 swing to the left and right, a force in the left-right direction acts on the louver frame 26 along with the swinging motion, and the upper plate 27 and the upper plate 27 of the louver frame 26 are clamped. Section 31a,
A frictional force corresponding to the biasing force due to the spring action of the sandwiching portion 31a is generated between the pinch portion 31a and 31a. The spring characteristics of the holding portions 31a, 31a and their shapes and dimensions are such that the sliding frictional force generated at this time is
It is set to be sufficiently larger than the rotational frictional force of the first swing shaft 24 generated by the bearing portions 27h, 28h.

Further, the upper plate 27 of the louver frame 26 is provided with a substantially triangular overhang portion 27a extending to the front side, and an engaging pin 32 extending downward is fixed to the apex portion of the overhang portion 27a. The fork portion 10a of the two claws formed on the rear portion of the operation knob 10 is engaged (see FIGS. 2 and 3). Therefore, when the operation knob 10 is slid to the left and right along the horizontal fins 8, the louver frame 26 moves to the left and right together with the engaging pin 32 against the frictional force generated by the sandwiching portions 31a of the frame supporting member 31. At this time, the vertical fins 11, 12, 13 are swung with the second swing shafts 25 as fulcrums.

On the other hand, all of the second swing shafts 25 of the vertical fins 11, 12, 13 are
One link member 41 extending laterally across the rear housing 16 is rotatably supported in each elongated hole 41h, and is linked to each other by the link member 41. The link member 41 is provided with a drive arm 42 extending rearward, and a rear end portion of the arm 42 has an electric motor 46.
And a motor housing 48 that houses the power transmission mechanism 47 and the like. Below the rear end portion of the drive arm 42, a circular crank plate 45 connected to an electric motor 46 via, for example, the gear type power transmission mechanism 47 is located, and on the upper surface of the crank plate 45. Is provided with a crank pin 44 projecting from a portion eccentric from the center by a predetermined amount.
Engages with an elongated hole 42a provided in the drive arm 42.

In the above configuration, when the electric motor 46 is driven, the crank plate 45 is rotated in association with the motor drive, the crank pin 44 is rotated around the central axis of the crank plate 45, and is slid in the elongated hole 42a. The link member 41 is reciprocally moved in the left-right direction. At this time, the link member 41 is moved left and right while the guide pins 41b, ..., 41b provided on the upper surface of the link member 41 are guided by long grooves (not shown) extending in the left and right direction formed on the housing side. As a result, the vertical fins 11, 12, and 13 are supported by the first swing shafts 24 as fulcrums, and the left and right columns 29 and 3 of the louver frame 26 are supported.
Can be rocked back and forth between 0.

Further, at this time, the holding portion 31a of the frame support member 31,
Since the magnitude of the frictional force generated between 31a and the upper plate 27 of the louver frame 26 is set to be sufficiently larger than the rotational frictional force of the first swing shaft 24, the vertical fins 11, 12,
The louver frame 26 itself does not move to the left or right due to the reciprocating swing motion of 13. That is, by driving the electric motor 46, the vertical fins 11, 12, and 13 can be automatically reciprocally rocked with each of the first rocking shafts 24 as a fixed fulcrum. Can be continuously varied.

On the other hand, when the operation knob 10 is slid to the left and right along the horizontal fin 8 when the electric motor 46 is stopped, the engaging pin 32
The louver frame 26 is slid in the guide groove 1a in the left-right direction against the frictional force due to the urging force of the sandwiching portions 31a, 31a of the frame support member 31, that is, with an appropriate sense of moderation. As a result, the vertical fins 11, 12, 13 are each swung in the left-right direction with the second swing shaft 25 as a fulcrum. At this time, since each of the second swing shafts 25 is rotatably supported by the link member 41, the vertical fins 11, 12,
The link member 41 itself does not move to the left or right with the swing motion of 13. That is, when the operation knob 10 is manually operated to adjust the wind direction, the frictional force imparts an appropriate moderation feeling, and a good operation feeling can be obtained. Further, it is possible to stably maintain the direction setting state of each vertical fin 11, 12, 13 which is set in a desired direction by manual adjustment.

As described above, according to this embodiment, the upper plate 27 of the louver frame 26 holds the upper portion 27 of the frame supporting member 31.
Since the louver frame 26 is supported by being slidably held by 31a, 31a, the louver frame 26
To make the frictional force that acts when sliding the
It is sufficient to maintain the dimensional accuracy of the upper plate 27 plate thickness T of the louver frame 26 at a constant level, and compared to the conventional case where the gap size obtained as a combined size of the louver frame and the case is maintained at a constant level. The quality control can be performed easily. As a result, it is possible to significantly reduce the variation in the frictional force due to the variation in the size and shape of the parts, and to effectively suppress the variation in the operating force for each product, as compared with the related art.

Further, the louver frame 26 only has one side (upper plate 27) clamped, and the louver frame itself is vertically sandwiched from the outside as in the conventional case in which a spring member is interposed between the louver frame and the case side. No directional biasing force is applied.
Therefore, the spring force for supporting the louver frame 26 is
Stability of support of louver frame 26 and vertical fins 11, 12, 13
There is no possibility of adversely affecting the swinging motion of the.

Further, in this embodiment, the vertical fins 11, 12,
A fixing means for fixing a swing fulcrum (first swing shaft 24) when reciprocally swinging 13 and a moderating mechanism for manually adjusting the position of the first swing shaft 24 (that is, the louver frame 26) are provided. It can also be used in common, and it is possible to avoid complication of the structure due to the provision of the moderation mechanism.

It should be noted that, by providing a locking recess for locking an operation member for manually operating the louver frame on the louver housing side,
The fixing means for the swing shaft may be provided separately from the moderation mechanism.

Further, although the above-mentioned embodiment is the one provided with the two-axis swing louver at the outlet of the air conditioner for automobiles, the present invention is not limited to the above-mentioned case, and the conventional one-axis type. In the air-conditioning outlet equipped with the swing louver, and also in the air-conditioning outlet that adjusts the wind direction only by manual adjustment, a plurality of fin bodies are frame-shaped connecting members (fin connecting frame)
It can be applied to those configured to be connected and supported by each other. Further, the present invention can be applied not only to automobiles but also to blowout ports of air conditioners for commercial use, household use, and other general purposes.

In addition, it goes without saying that various changes and modifications can be added to the present invention based on the knowledge of those skilled in the art without departing from the spirit of the present invention.

[Brief description of drawings]

Each of the drawings is for explaining an embodiment of the present invention. FIG. 1 is a front explanatory view of an air conditioner outlet of an automobile air conditioner according to the above embodiment, and FIG. 2 is an internal structure of the air conditioner outlet. FIG. 3 is a cross-sectional explanatory view in the AA direction of FIG. 1, FIG. 4 is a perspective view of the louver frame, FIG. 5 is a front view of the louver frame, and FIG. 6 is a frame support member assembly. FIG. 7 is an exploded perspective view of the attachment part, FIG. 7 is a front view of the frame supporting member, FIG. 8 is a bottom view of the frame supporting member, and FIG.
The drawing is a cross-sectional view in the BB direction of FIG. 1 …… Louver housing, 2,3,4 …… Blowout port, 11,12,13
...... Vertical fins, 16 …… Rear housing, 16a …… Rear housing top plate, 26 …… Louver frame, 27 …… Louver frame top plate, 31 …… Frame support member, 31a …… Clamping part, 31b… …Fixed part.

Claims (1)

[Scope of utility model registration request] 1. A plurality of fins for adjusting the wind direction and a fin connecting frame having a substantially rectangular shape for connecting these fins to each other are provided, and the fin connecting frame is slid with respect to the case. In an air conditioning outlet in which each fin body is swung to adjust the direction of the conditioned air, one end of the air conditioning outlet is fixed to the case side while the other end has a predetermined spring characteristic. A connection frame support member having a holding portion is disposed, and the fin connection frame is supported by the connection frame support member by one side of which is slidably held by the holding portion. The support structure for the fin connection frame of the air conditioning outlet.