JPH03204544A - Wind shifter - Google Patents

Abstract

PURPOSE:To improve appearance of a sidewall of an air blow-off port and to prevent generation of turbulence on the sidewall by a method wherein one shaft to be inserted into a support hole of one sidewall of the air blow-off port is provided at one end of a movable vane, and another cylindrical shaat into which a pin projected from a support hole of the other sidewall of the air blow-off port is inserted is provided at the other end of the movable vane. CONSTITUTION:A left supporter 101 of synthetic resin is inserted into a space 100 of a horizontal vane 64, and a left shaft (one shaft) 102 is inserted into a left support hole 103 of an air blow-off port 63. A right supporter 107 of synthetic resin is inserted into the space 100 of the horizontal vane 64, and a right shaft (another shaft) 108 is formed in a cylinder. A projected pin 111 is formed on a presser 110. When the presser 110 is pressed against a left side piece 112 of an operation port 202, the tip of the projected pin 111 enters the right shaft 108 of the right supporter 108 through the right supporting hole 109 of the air blow-off port 63, so that the horizontal vane 64 can be supported pivotallytably within the air blow-off port 63. In this constitution, as the right shaft 108 is supported by the projected pin 111, the supporting holes 103 and 109 have only to be formed respectively on the left and right sidewalls of the air blow-off port 63.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a wind direction changing device in which a movable blade of a sheet metal portion is arranged at a discharge port.

(B) Conventional technology Utility Model Publication No. 1-19001 shows a wind direction changing device in which each end of a movable blade is supported on both side walls of a discharge port.
There is a publication.

The wind direction changing device disclosed in this publication had a fixed shaft protruding from one side wall of the air outlet and a bearing hole provided on the other side wall. On the other hand, one end of the movable blade was provided with an engagement hole into which the fixed shaft was fitted, and the other end was provided with a rotating shaft that was inserted into the bearing hole.

In such a device, the width of the air outlet from the tip of the fixed shaft on one side wall of the air outlet to the other side wall is set smaller than the width of the movable blade from one end of the blade to the rotating shaft. Therefore, when the movable blade is molded from a material with elasticity such as synthetic resin and is attached to the outlet, the rotating shaft of the movable blade must be inserted into the bearing hole at the other end of the outlet. The movable blade is bent into an arched shape by its elastic force, and is fitted into the engagement hole of the movable blade into the fixed shaft of one side wall of the air outlet.

C) Problems to be Solved by the Invention When the movable blade is molded from a material with elasticity such as synthetic resin, it is possible to bend the movable blade into an arched shape. Even if the movable blade is larger than the width of the air outlet, this movable blade can be attached to the air outlet.

However, if the air outlet is relatively long or the temperature of the air discharged from the air outlet is high, the movable blades may be formed of sheet metal or the like in consideration of rigidity and heat resistance. At this time, since the sheet metal has relatively little elasticity, one of the two walls of the air outlet is cut out in a U-shape, and the blades of the sheet metal part are placed in this notch. It is conceivable to fit the member. However, in such a structure, a separate member is attached to only one side wall of the outlet, which makes it look bad, and if the separate member and the side wall are not fitted securely, turbulence will occur from this area, causing noise. It may be a cause.

The present invention aims to improve the appearance of the side wall of the discharge port in a wind direction changing device in which movable blades are disposed at the discharge port, and to prevent the occurrence of turbulent flow on the side wall.

(d) Means for Solving the Problems In order to achieve this object, the present invention provides one shaft at one end of the movable blade to be inserted into a support hole in one side wall of the discharge port,
The other end of the blade is provided with another cylindrical shaft into which a pin protruding from a support hole in the other side wall of the discharge port is inserted.

(E) One end of the working movable blade is supported by a support hole in one side wall of the discharge port, and the other end of this movable blade is supported by a pin protruding from a support hole in the other side wall of the discharge port. Therefore, it is sufficient to form support holes on both side walls of the discharge port, and even if the discharged air flows along the both side walls, turbulence is less likely to occur.

Embodiment 1 In Fig. 1, 1 is the main body of an integrated air conditioner, and this integrated air conditioner is composed of the main body 1 and an exterior body (described later) into which the main body 1 is inserted. . Reference numeral 2 denotes a bottom plate, and a stepped portion 5 is formed so that the front portion 3 is one step higher than the rear portion 4. 6 is a partition plate that can be placed on this bottom plate,
The partition plate divides the bottom plate 2 into an indoor side 7 and an outdoor side 8. 9 is a fan motor; 10 is a fixing plate for the fan motor; a flange piece 12 of the fan motor 9 can be fixed to one side 11 of the plate; The leg pieces 13 of this fixed plate 10 are attached to the outside surface of the partition plate 60. 14
is a reinforcing plate for this fixed plate 10, the details of which will be described later. 1
5 is one drive shaft of this fan motor 9, and a propeller fan 16 is fixed to this drive shaft 15. Reference numeral 17 denotes a slinger ring, and as the propeller fan 16 rotates, drain water accumulated in the rear part 4 of the bottom plate 2 is scooped up by the slinger ring 17 and scattered to the outdoor heat exchanger 18. 19 is a fan cover of this propeller fan 16, and its left and right pieces 20 are the left and right tube plates 2 of the outdoor heat exchanger 18.
Each is fixed at 1.

22 is an outdoor top plate, and the upper edge 23 of this fan cover 19
and covers the outdoor heat exchanger 18. A sealing material 24 is attached to the rear edge of the outdoor top plate 22.

25 is an opening provided in the partition plate 6, through which the other drive shaft 26 of the fan motor 9 projects. 27 is a centrifugal fan attached to this drive shaft 26, and 28 is a casing of this fan, in which a suction port 29 is formed in the front part and a discharge port 30 is formed in the upper part. 31 is a wire mesh that covers this discharge port 30.

And, this fan casing 28 has its flange piece 3
2 is applied to the indoor side surface 33 of the partition plate 6 and fixed to the partition plate 6 with screws (not shown). Here, the size of the discharge port 30 of the fan casing 28 (i.e., the size of the discharge port 30
The width dimension a and the depth dimension b) are set larger than the size of the centrifugal fan 27 (that is, the diameter C and the depth dimension d of the centrifugal fan 27), and the centrifugal fan 27 can be taken out from the discharge port 30. That's what I do.

34 is a piping cover, one end of which is fixed to an end 35 on the opposite nose side of the fan casing 28, and the other end fixed to the left edge 36 of the partition plate 6.

Reference numeral 37 denotes a mounting plate attached to the front part of the fan casing 28, on which a bell mouth (suction port) 38 is formed. Reference numeral 39 denotes a mounting piece formed by bending a portion of the upper part of the mounting plate backward, and has a mounting hole 40 formed therein. When the mounting plate 37 is lowered down along the front surface of the fan casing 28, the mounting holes 40 of the mounting pieces 39 are inserted into the pins 41 on the upper surface of the fan casing 28. As a result, the mounting plate 37 is fixed to the front surface of the fan casing 28, and the bell mouth 38 faces the opening of the centrifugal 7-ang 27. Therefore, when performing a service inspection of the centrifugal fan 27, first pull out the mounting plate 37 upward, and then attach the boss (not shown) of the centrifugal fan 27 to the drive shaft 2 of the fan motor 9.
Remove from 6.

After moving the centrifugal fan 27 a little forward (towards the indoor heat exchanger 42), the centrifugal fan 27 is pulled up from the discharge port 3o of the fan casing 28. In this way, service inspection of the centrifugal fan 27 can be easily performed.

43 is a drain pan made of expanded polystyrene placed on the front part 3 of the bottom plate 2, and a drain port 44 faces the outdoor side 8 from a notch (not shown) at the bottom of the partition plate 60.

Reference numeral 45 denotes a heat shielding plate placed at the rear of the drain pan, and the rising piece 46 and the rear piece 47 of this plate are attached to the drain pan 4.
Cover the rising edge 48 of 3.

Reference numeral 49 is an aluminum tape that is attached to the rising wall 50 at the corner of the drain pan 43. Therefore, a portion of the radiant heat from the electric heater (omitted in FIG. 1) attached to the front surface of the partition plate 37 is blocked by the heat shield plate 45 and the aluminum tape 49, making it difficult for it to be transmitted to the Styrofoam drain pan 43. This drain pan 43 is made to be difficult to deform due to heat. The indoor heat exchanger 42 is placed on a drain pan 43. And this indoor heat exchanger 42
A refrigerant pipe 57 connected to the fan casing 28 passes around (on the left side) and is inserted into a piping hole 58 of the partition plate 6. A piping cover 3 is placed above this refrigerant pipe 57.
4 is placed.

51 is a Suita member disposed above the indoor heat exchanger 42, and vertical blades 52 are arranged in a row.

53 is an indoor top plate fixed to the upper edge 54 of the partition plate 6;
A latching piece (fixing part) 55 is provided on the top surface.
A front panel 56 is locked to this locking piece 55. Here, when performing a service inspection of the indoor heat exchanger 42, a part of the refrigerant pipe is cut in the outdoor side 8, and the refrigerant pipe 57 extending from the indoor heat exchanger 42 is made straight. Next, when the indoor top plate 53, the blowout member 51, and the pipe cover 34 are removed, the refrigerant pipe 57 is located on the side of the fan casing 28, passing through the pipe hole 58 of the partition plate 6. Therefore, by pulling out the indoor heat exchanger 42 upward and then pulling it diagonally forward, the indoor heat exchanger 42 can be taken out without removing the fan casing 28.

59 is a flat metal fitting that connects the upper edge 54 of the partition plate 6 and the outdoor top plate 22. 6o is the electrical box, partition plate 6
is fixed to the side of the room.

61 is a compressor, which is attached to the rear part 4 of the bottom plate 2. The front panel 56 has a suction grill 62 at its lower part.
A discharge port 63 is provided at the top. Reference numeral 64 denotes a movable blade (hereinafter referred to as 1 horizontal blade) disposed at this discharge port 63.
It is. 202 is an operation port provided on the side of this discharge port 63.

FIG. 2 is a perspective view showing the main body 1 with such a device (excluding the front panel 56) assembled. This second
In the figure, 65 is an exterior body of the main body 1, 200 is a polyethylene bat attached to the inside of this exterior body, and this bat 200 is located on the side of the compressor 61. Therefore, even if the compressor 61 tries to vibrate abnormally due to, for example, dropping the air conditioner during transportation, this vibration is regulated by the bat 200. Note that this main body 1 is shipped even with the exterior body 65 removed. In this case, a cover is attached to the unit instead of the exterior body 65. A foamed polystyrene bat is attached to the inside of this cover, and abnormal vibrations of the compressor 61 are controlled by this bat.

During installation, this cover is removed together with the bat.

FIG. 3 is a longitudinal sectional view of this air conditioner 66, in which the exterior body 65 is attached to penetrate an indoor wall 67. Then, the main body 1 in the state shown in FIG. 2 is inserted into this exterior body 65 from the indoor side. Thereafter, the lower part 68 of the front panel 56 is turned toward the front as shown in FIG. It is inserted into the receiver 72 of the bottom plate 2 and fixed. When the front panel 56 is attached in this manner, the rear edge 73 of the front panel 56 comes into contact with the front edge 74 of the exterior body 65, and the surface of this exterior body 65 and the surface of the front panel 56 coincide.

Here, attach the protruding piece 70 of the front panel 56 to the front panel 56.
A space 75 is formed around the rear edge. Space 75 like this
As shown in FIG. When aligned, the protrusion 76 is located in the space 75 of the front panel 56. The front panel 56 and the exterior body 77 are flush with each other. In other words, the exterior body 77 (
(see FIG. 5), or the exterior body 65 (see FIG. 5), or the exterior body 65 (see FIG.
The front panel 56 can be attached to any of the exterior bodies (see FIG. 3).

78.79 is a heater and its heater fuse,
It is fixed to the mounting plate 37 via the support frame 201. The details will be described later. The indoor heat exchanger 42 acts as an evaporator, and the refrigerant flows as shown by the solid arrow. That is, the low-temperature refrigerant whose pressure has been reduced by a pressure reducer (not shown) first flows into the upper leeward side vibrator 80 and then flows through the upper part 85 in this heat exchanger 42 in an inverted U-shape to the windward side vibrator 8.
It will lead you to 1. The flow flows from top to bottom inside this windward side vibe, and at the bottom, the flow is split into two by the cheese 82, and flows parallel to the inside of the leeward side vibe 83 and the middle vibe 84, and after converging at the top, it is compressed from this top. I'm trying to get back to the plane. The reason why the low-temperature refrigerant is first flowed in an inverted U-shape at the upper part 85 of the indoor heat exchanger 42 is as follows.
This is because it was desired that the heat exchange rate in the upper part 85 be higher than that in the lower part 86. As a result, the air passing through the upper part 85 of the indoor heat exchanger 42 is cooled and has a lower temperature than the air 86 passing through the lower part. Therefore, the air whose temperature is kept low flows to the protective device (fuse) 79 of the heater 78, making it difficult for dew to form on the protective device 79.

Therefore, poor insulation of the protection device 79 is less likely to occur, and when the heater is energized during heating operation, abnormal heating of the heater 78 can be prevented.

The rear edge 87 of the blowing member 51 is formed in an inverted U shape,
The upper edge 88 of the mounting plate 37 is fitted into the rear edge 87 of the blowing member 51. In this way, the upper edge 88 of the mounting plate 37 is fixed by the blowing member 51, and the mounting plate 37 and the blowing member 51 are reliably combined, so that the air discharged from the outlet 30 of the fan casing 28 is transferred to the mounting plate 37.
7 and the blowing member 51 so as not to leak.

Further, when the main body 1 is placed in the exterior body 65, the sealing material 24 stuck to the outdoor top plate 22 approaches the rear edge 89 of the exterior body 65. The reason why the sealing material 24 is placed close to the rear edge 89 of the exterior body 65 is to prevent the air completely discharged from the outdoor heat exchanger 21 from entering the gap between the exterior body 65 and the outdoor top plate 22 as much as possible. This is to suppress it.

FIG. 6 is a perspective view showing the lower left portion of the indoor heat exchanger. Reference numeral 90 denotes an auxiliary tool having an oval shape in cross section, and is rotatably fixed to the front piece 92 of the partition plate 6 with screws 91. When the main body 1 is removed from the exterior body 65 during service inspection, the auxiliary tool 90 is turned downward (in the state shown by the dashed-dotted line).

On the other hand, after inserting the main body 1 into the exterior body 65, this auxiliary tool 9
0 horizontally and the protruding piece 93 is placed on the front edge 94 of the exterior body 65.
to engage. This prevents the main body 1 from being pulled out from the exterior body 65 carelessly. I did it this way,
For example, after inserting this main body 1 into the exterior body 65, if this main body 1 is pushed from the outdoors into the room, the main body 1 with the front panel 56 attached falls into the room. and exterior body 65
This is because the wall was penetrated through the exterior body 65, which made people unwary and unfavorable for crime prevention.

FIG. 7 is a perspective view showing the lower part 60 of the main body 1, where 95 is a power cord extending from the electrical box, 96 is a clamper for stopping this cord 95, and the front side 97 is fixed to the bottom plate 2. Therefore, the power cord 95 is pulled from the back side 98 to the front side 97 and engaged with the clamper 96. When the main body 1 is inserted into the exterior body 65 (see FIG. 3), the front edge 74 of the exterior body 65 is located below the clamper 96. Therefore, if the power cord 95 is pulled from the back side 98 of the clamper 96 to the front side 97 and engaged with this clamper 96, and the main body 1 is inserted into the exterior body 65, the power cord 95 will be inadvertently pulled toward the front side (front panel 56 side). ), even if the clamper 96 tries to deform, this clamper 9
6 is prevented from being deformed by the front edge 74 of the exterior body 65. Therefore, there is no risk that the power cord 95 will come off the clamper 96. Here, since the power cord 95 is pulled out from a notch (not shown) at the bottom of the front panel 56, even if the power cord 95 is pulled forward, there is no fear that the front panel 56 will come off.

FIG. 8 is a perspective view showing the relationship between the horizontal blade 64 disposed at the discharge port 63 and the display frame 99 attached to the operation port 65. The horizontal blades 64 are each formed by bending a sheet metal, and a space 100 is provided inside thereof. 101 is a left support made of synthetic resin, and each horizontal blade 64
(see FIG. 9). Reference numeral 102 denotes a left shaft (negative shaft), which is inserted into the left support hole 103 of the discharge port 63. 104 is an interlocking shaft into which a notch 106 of an interlocking plate 105 is fitted. 107 is a right support made of synthetic resin,
It is inserted into the space 100 of each horizontal blade 64. Reference numeral 108 has a left axis (the other axis) and is formed into a cylindrical shape. This left axis 1
The outer diameter of the outlet 18 is set smaller than the inner diameter of the right support hole 109 of the discharge port 63. 110 is a pressing tool,
A protruding pin 111 is formed. Then, when this pressing tool 110 is pressed against the left side piece 112 of the operation port 202,
The tip of this protruding pin 111 is inserted into the left shaft 108 of the right support 107 through the right support hole 109 of the discharge port 63 . As a result, the horizontal blade 64 is rotatably supported within the Suita rotor 63.

In this way, the left shaft 108 of the right support 107 is connected to the air outlet 63.
The protruding pin 11 of the pressing tool 110 is pressed against the right side surface 203 of the
1, it is sufficient to form support holes 103 and 109 in the left and right side walls of the discharge port 63, respectively. Therefore, the appearance of the side wall of the air outlet 63 is improved,
By reducing the occurrence of turbulence near this side wall, the Suita Exit 63
This makes it easier to suppress dew build-up around the discharge port 63 when cold air is blown out.

A display frame 99 is fitted into the operation port 202, and has a projection 113 on its left side, an engagement piece 114 on its top piece, and a fixing piece 115 on its bottom piece.

Then, while fitting the engaging piece 114 into the protrusion 210 (see FIG. 10) on the upper back side of the front panel 56, the fixing piece 115 is fixed to the lower back side of the front panel 56 with a screw. Here, the distance X between the engaging pieces 114 is matched with the distance between the protrusions 210.

Therefore, with the engaging pieces 114 of the display frame 99 fitted into the projections 210, the display frame 99 is positioned at the operation port 65 of the front panel 56. Then, by fixing the fixing piece 115 to the lower back side of the front panel 56 with a screw,
The protrusion 113 hits the pressing tool 110, and this pressing tool 110
prevents it from coming off.

FIG. 11 is a sectional view showing the relationship between the partition plate 6, the fan motor 9, the fixing plate 10 of the fan motor, and the reinforcing plate 14. Reference numeral 116 indicates the space between the fan motor 9 and the opening 25 of the partition plate 6. It is a cushion rubber provided. and reinforcement plate 1
The lower end 117 of 4 is fixed to the bottom plate, and the upper end 118 of 4 is fixed to the fixed plate 10. In this way, the partition plate 6 to which the fan motor 9 is attached and the bottom plate 2 are connected by the reinforcing plate 14, so vibrations generated when the fan motor 9 rotates are received by the partition plate 6 and the bottom plate 2, and the partition plate The vibration of the fan motor 9 is not transmitted only to the fan motor 6. Thereby, the vibration of the partition plate 6 can be reduced, and the partition plate 6 can be made thinner. In particular, this partition plate 6 is
It is a relatively large member because it divides the upper part into an indoor side 7 and an outdoor side 8, and by reducing the thickness of this partition plate 6, the cost of this partition plate 6 can be reduced.

12 and 13 are front views showing the relationship between the centrifugal fan 27 and the fan casing 28, as well as characteristic diagrams of air volume and rotation speed. The diameter e of the centrifugal fan 27 is 1801 m.
The center 119 is the center 1 of the fan casing 28.
8 dimensions (71T) 1 dimension (i onm) above 20 to the right
[[l] Shifted. In this manner, the centrifugal fan 27 was brought close to the nose portion 121 of the fan casing 28 within the fan casing, so that the gap between the nose portion 121 and the centrifugal fan 27 was approximately 11+111. (Note that when the center of the centrifugal fan 122 is aligned with the center 120 of the fan casing 28, the nose portion 12
1 and the centrifugal fan 121 is approximately 20ffl.
l). In FIG. 13, the solid line represents the relationship between the rotational speed and air volume of the centrifugal fan 27 when the center 119 of the centrifugal fan 27 and the center 120 of the fan casing 28 are shifted (embodiment of the present invention). Center 1 of type fan 122
The relationship between the rotation speed and the air volume of the centrifugal fan 122 when the center 120 of the centrifugal fan 122 and the center 120 of the fan casing 28 are aligned (as shown by the broken line in FIG. 12) is shown by a broken line. According to this,
Center 119 of centrifugal fan 27 and fan casing 28
When the centers 120 and 120 were shifted (solid line), the air volume increased by 0.25XIQQcm3 at the same rotational speed than when the centers of both were aligned (broken line). This is because when the center 119 of the centrifugal blower 27 and the center 120 of the fan casing 28 are shifted, the gap size between the nose portion 121 and the centrifugal blower 27 becomes smaller.
This is thought to be because the air blown out from the outlet 30 of the fan casing 28 is less likely to be sucked into this gap.

FIG. 14 is a plan view showing the relationship between the rear grill 123 of this air conditioner 66 and the unit 1, where 124 is a suction bar connected to the suction port, 125 is a discharge bar located at the rear of the outdoor heat exchanger 18, In particular, both ends 1 adjacent to the suction bar 124
26 is inclined inward at an angle θ (45°±2°). Since it is tilted in this way, both ends 12 of the discharge bar 1250
The outdoor air discharged from the air conditioner 6 flows as shown by the solid line arrow, and an air short in which the discharged air is sucked into the air conditioner 66 via the suction crosspiece 124 is prevented as much as possible.

In FIG. 15, 127 is a heater member fixed to the front surface of the mounting plate 37, and this member is composed of a support frame 201 fixed to the mounting plate 37 and a heater 78 arranged in a meandering manner on this support frame 201. It is configured. A thermostat 128 is one of the protection devices for the heater 78. The stand 78 and the support frame 201 are supported at their intersections. In particular, the central piece 129 of the support frame 201 prevents the heater 78 from sagging. Moreover, the upper part 130 of this center piece 129 is bent to the right (in FIG. 15), and this upper part 130 also serves as a fixing part 131 for one end of the fuse 79 of the heater 78. In other words, the central piece 129 provided to prevent the heater 78 from sagging.
Since the upper part 130 of the bell mouth 38 is bent to the right in order to serve also as a fixing part of the fuse 79, this bending eliminates the center piece 129 near the central upper part 132 of the bell mouth 38, and the ventilation resistance of this part 132 is reduced. This suppressed the decrease in suction air volume to a small level.

(G) Effects of the Invention As described above, the present invention provides one end of the movable blade with one shaft that is inserted into the support hole in the side wall of the discharge port, and the other end of the blade with the shaft that is inserted into the support hole of the side wall of the discharge port. Since the other shaft is provided in a cylindrical shape into which the pin protruding from the support hole in the side wall is inserted,
It is sufficient to form support holes on both side walls of the discharge port, and there is no need to provide a notch on one side wall as in the conventional case, and the appearance can be improved. Furthermore, even if the discharged air flows along these side walls, turbulence is less likely to occur, and noise and dew are less likely to occur.

[Brief explanation of drawings]

Figure 1 is an exploded perspective view of an integrated air conditioner showing an embodiment of the present invention, Figure 2 is a perspective view of the unit with the front panel removed, Figure 3 is a vertical sectional view of the unit, and Figure 4. is an explanatory diagram showing the installation state of the front panel of the aircraft, Figure 5 is a vertical sectional view of the main part showing the different installation states of the front panel, and Figure 6 shows the relationship between the exterior body of the aircraft and auxiliary equipment. A perspective view of the main parts of the aircraft; Figure 7 is a bottom perspective view of the aircraft showing the installation state of the power cord;
Figure 8 is an exploded perspective view of the discharge port of the same machine, Figure 9 is an enlarged view of the main parts of Figure 8, Figure 10 is a perspective view of a part of the back of the front panel, and Figure 11 is this air conditioner. 12 is an explanatory diagram showing the relationship between the centrifugal fan of the same machine and the casing, and Figure 13 is the relationship between the rotation speed and the discharge air volume of the centrifugal fan of the same machine. FIG. 14 is a sectional view of the rear grill of the aircraft, and FIG. 15 is an elevational view of a heater member attached to the aircraft. 63...Discharge port, 64...Movable (horizontal) blade,
102... One shaft, 103, 109... Support hole, 10B... Other shaft, 111... Pin.

Claims (1)

[Claims] 1) In a wind direction changing device in which a movable blade is disposed at a discharge port, one end of this blade is provided with one shaft that is inserted into a support hole in one side wall of the discharge port, and the other end of this blade is provided with a shaft that is inserted into a support hole in one side wall of the discharge port. A wind direction changing device characterized in that the other shaft is provided with a cylindrical shape into which a pin protruding from a support hole in the other side wall of the outlet is inserted.