JP2001113936A - Slide door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact and easy-to-assemble slide door device. SOLUTION: An opening 23A for bearing is formed through the center of a frame side plate part 23 formed on lateral both sides of a frame 20. A rack teeth 30 are formed in lateral both sides of a slide plate 21 along the sliding direction of the slide plate 21. A rotating tube body 32 is formed of a gear part 32F having a pinion gear 31 meshed with the rack teeth 30 formed therein and a tube part 32A fitted rotatably into the opening part 32A for bearing with the pinion gear 31 meshed with the rack teeth 30 formed coaxially with each other so as to be integral with each other. A tube shaft 32A is fitted into the opening 23A for bearing of the frame side plate 23 on both sides from the corresponding inner side. Then the locking part of a drive shaft 22 is fitted into a shaft through port 32C of the rotating tube body 32 on both sides rotatably and transmittably to the rotating tube body 32 in the state that the movement thereof in the outer direction of the rotating tube body 32 is controlled by a stopper part 32D.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door device, for example, a sliding door device used for an air conditioning unit of an automobile.

[0002]

2. Description of the Related Art Conventionally, an air conditioning unit for a vehicle in which a heat exchanger for cooling, a heat exchanger for heating, and a blower are integrated is disposed in the center of a vehicle width direction behind an engine room and in a front part of a vehicle compartment. There is. An example of such an air conditioning unit for a vehicle is disclosed in Japanese Patent Application Laid-Open No. H11-254942.

In this vehicle air conditioning unit, the air blown from the blower is passed through a cooling heat exchanger, and the air distribution is controlled by an air mixing door. In this air mix door, the ratio of the amount of air that allows the air cooled by the cooling heat exchanger to pass directly to the bypass passage and the amount of air that allows the air cooled by the cooling heat exchanger to pass to the heating heat exchanger. Is controlling. The air that has passed through the heating heat exchanger is joined and mixed again in the air mixing chamber together with the air that has been heated and sent to the bypass passage, and is mixed and adjusted to a predetermined blowing temperature. The air conditioned here rises along the wall of the unit case on the vehicle interior side, and is blown out into the vehicle interior from the vent outlets, defroster outlets, and foot outlets that are indoor outlets. I have.

The air mix door is a slide door slidable laterally with respect to the guide rail, and is formed to be curved so as to bulge toward the downstream side of the cool air passing through the cooling heat exchanger. I have. By using such a slide door, it is possible to make the air mix door compact, and to allow the air that has passed through the cooling heat exchanger to flow smoothly to the bypass passage side or to the heating heat exchanger. Therefore, there is an advantage that the ventilation resistance is reduced.

[0005]

In the above-described air conditioning unit for a vehicle, there is a demand for an improvement in assemblability of each component together with a demand for compactness. In particular, it is essential for the air mix door composed of slide doors that the guide rail and the slide door can smoothly move relative to each other and that the slide drive force can be smoothly transmitted. In addition to the characteristics, it is necessary to be able to perform a reliable sliding operation. Such a situation is not limited to the air conditioning unit for a vehicle, but also applies to various devices that require a sliding door.

Accordingly, the present invention has been made in view of such circumstances, and an object of the present invention is to provide a sliding door device which is compact and has good assembling properties.

[0007]

According to the first aspect of the present invention,
A sliding door device comprising: a frame having an opening; and a slide plate disposed along one side of the frame and slidably driven with respect to the one side to control an opening cross-sectional area of the opening. There is a pair of frame side plates facing each other on both sides in the width direction of the frame,
A bearing opening is formed at the center of each of the frame side plate portions, and rack gears are formed on both sides in the width direction of the slide plate along a sliding direction of the slide plate, and the slide plate is provided with a rack gear. A gear portion having a pinion gear meshing with the rack gear formed on the outer peripheral surface, and a cylindrical shaft portion rotatably fitted into the bearing opening in a state where the pinion gear and the rack gear mesh with each other, are coaxially integrated. The cylindrical shaft portion of the rotating cylindrical body formed in the bearing opening portion of the frame side plate portion on both sides is fitted from the inside facing each other, and the end of the drive shaft,
The stopper is configured to be rotatably transmitted to the rotary cylinder in a state in which movement of the rotary cylinder in the opposing outer direction is restricted by a stopper in the cylindrical holes of the rotary cylinder on both sides. Is characterized in that the end of the drive shaft is inserted from the cylinder shaft side and passes therethrough, and the end of the drive shaft is inserted from the gear side and is prevented from passing therethrough. I have.

According to the first aspect of the present invention, the pinion gear of the gear portion is formed on the rack gear formed on the slide plate by rotating the rotary cylindrical body having the cylindrical shaft portion fitted to the frame side plate portion. The slide plate can be slid with respect to the frame by rotating in the engaged state. When the end of the drive shaft is inserted from the cylinder shaft side, the stopper provided in the cylindrical hole of the rotary cylinder can pass this end to the gear part side, and conversely, drive from the gear part side When the end of the shaft is inserted, this end is blocked by the stopper and cannot be inserted. By utilizing such an operation, the pair of rotary cylinders and the drive shaft can be easily assembled. That is, when the drive shaft is inserted into one of the rotary cylinders from the cylinder shaft side, the stopper provided in the cylinder hole allows the end of the drive shaft 22 to be inserted and passed. Next, the slide plate is set on the frame, and the end of the drive shaft protruding from the cylinder shaft side of the rotary cylinder is inserted into the bearing opening of the frame side plate from the inside facing away. Subsequently, the other rotary cylinder is mounted on the bearing opening on the other frame side plate. Then, while maintaining the state in which one of the rotary cylinders is in close contact with the one frame side plate, only the drive shaft is pushed out toward the other frame side plate, and the drive shaft is inserted into the cylindrical hole from the inside of the other rotary cylinder. insert. Finally, the drive shaft is pushed out until the other end of the drive shaft reaches the stopper portion in the cylinder hole of the other rotary cylinder, so that one end of the drive shaft in the cylinder hole of one rotary cylinder is formed. When the end portion passes through the stopper portion, the return of one end portion of the drive shaft is restricted. In this way, the slide plate is
It can be slidably mounted by the rotation of the rotary cylinder and the drive shaft. Since it is possible to assemble in such a procedure, the invention according to claim 1 does not require a special configuration for curving the frame side plate portion or mounting the drive shaft on the rotary cylinder, so that it is quick and reliable. Can be assembled. Further, since the slide door device can be appropriately mounted in a compact state in which such an assembly is performed, the structure of the air conditioner for a vehicle, for example, in which the slide door device is provided can be simplified.

According to a second aspect of the present invention, there is provided the slide door device according to the first aspect, wherein a gear is formed adjacent to the rack gear in a width direction inside of the slide plate at a position where the rack gear is formed. And a positioning notch formed at a predetermined position of the gear defining rib so as to guide the cylindrical shaft of the rotary cylindrical body to the bearing opening.

Therefore, according to the second aspect of the present invention, in addition to the operation of the first aspect, when the slide plate is at a predetermined position with respect to the frame, the positioning rib formed on the gear defining rib is formed. By assembling the rotary cylinder in accordance with the notch, the cylinder shaft of the rotary cylinder can be easily and reliably fitted into the bearing opening formed in the frame side plate. For this reason, the fitting between the rotary cylinder and the frame side plate and the engagement between the pinion gear and the rack gear can be easily performed.

[0011] Further, the invention according to claim 3 is based on claim 1.
Alternatively, in the slide door device according to claim 2, the stopper portion is an elastic member that stands upright in a direction from the cylinder shaft side toward the gear portion side in the cylinder hole of the rotary cylinder body. There is a feature.

Therefore, according to the third aspect of the present invention, in addition to the functions of the first and second aspects of the present invention, the end of the drive shaft can be inserted from the cylindrical shaft side of the rotary cylindrical body. Thus, the above-described assembling procedure can be performed.

According to a fourth aspect of the present invention, there is provided the sliding door device according to any one of the first to third aspects, wherein the opposed inner side surface of the frame side plate portion extends along the sliding direction. A slide guide groove is formed, and slide pins which are slidably housed in the slide guide groove are provided at both end portions of the slide plate.

Therefore, the invention according to claim 4 has an effect of smoothly sliding the slide plate with respect to the frame, in addition to the effect of the invention described in claims 1 to 3.

[0015]

According to the first aspect of the present invention, there is no need for a special structure for bending the frame side plate portion or mounting the drive shaft on the troublesome rotary cylinder, so that quick and reliable assembly is possible. There is an effect that can be done. According to the first aspect of the present invention, since the slide door device can be appropriately mounted in a state where the assembly is performed, the structure of the slide door device provided, for example, an air conditioning unit for a vehicle is simplified. There is an effect that can be made.

According to the second aspect of the present invention, in addition to the effects of the first aspect, when the slide plate is at a predetermined position with respect to the frame, the positioning rib formed on the gear defining rib is formed. By assembling the rotary cylindrical body in accordance with the notch, there is an effect that the cylindrical shaft portion of the rotary cylindrical body can be easily and reliably fitted into the bearing opening formed in the frame side plate. For this reason, according to the second aspect of the invention, there is an effect that the fitting between the rotary cylinder and the frame side plate portion and the engagement between the pinion gear and the rack gear can be easily performed.

According to the third aspect of the invention, in addition to the effects of the first and second aspects of the present invention, the structure of the stopper portion is simplified, and the rotary cylinder can be realized at low cost. it can.

According to the invention of claim 4, claims 1 to 1 are provided.
In addition to the effect of the invention described in claim 3, since the slide plate can be smoothly slid with respect to the frame, rattling of the slide plate can be prevented, and there is an effect that reliable opening / closing control can be performed. .

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of a sliding door device according to the present invention will be described below using embodiments shown in the drawings. The slide door device according to the present invention can be applied to places requiring various gate functions. In the present embodiment, a description will be given by applying this slide door device to an air conditioning unit for a vehicle. Prior to the description of the configuration of the slide door device of the present embodiment, the configuration of a vehicle air conditioning unit to which the slide door device is applied will be described.

In FIG. 1, reference numeral 1 denotes a vehicle air conditioning unit, and reference numeral 2 denotes a unit case.

The unit case 2 has a shape that can be separated left and right by a fastening screw or the like. FIG. 2 is a perspective view showing a half part of the unit case 2 separated into right and left.
FIG. 3 is a perspective view showing the external appearance of the entire vehicle air conditioning unit 1. Inside the unit case 2, a blower (blower) 3 as a main component, an air conditioning passage 6 for guiding air sent from the blower 3 toward upper opening ports 4, 5 described below, A cooling heat exchanger (evaporator) 7 and a heating heat exchanger (heat core) 8 arranged in the air conditioning passage 6, and a cooling heat exchanger 7 arranged downstream of the cooling heat exchanger 7. The sliding door device 9 through which the air that has passed through the air passage without exception, the opening and closing door 10 disposed downstream of the cooling heat exchanger 7 and the heating heat exchanger 8, and the final portion of the air conditioning passage 6 are disposed. Door 11.

The blower 3 is arranged in an arc-shaped housing 12 provided above the unit case 2 and is driven to rotate by a drive motor (not shown).

The housing 12 has an inlet 13 for taking air into the housing 12 by rotation of the blower 3.
And an air outlet 15 are formed.

The air-conditioning passage 6 communicates with an air outlet 15 of the housing 12 to supply air blown from the air outlet 15 to the vehicle compartment 1.
A down passage 6A that guides down along the side 4, a U-turn passage 6B as a lower passage that guides the descended air toward the engine room 16 and makes a U-turn, and a U-turn passage 6B.
And an ascending passage 6C for guiding the air U-turned toward the upper opening ports 4, 5.

The descending passage 6A of the air conditioning passage 6 is formed so as to be surrounded by the case wall surface 2A on the passenger compartment side of the unit case 2 and the left and right side walls 17, 17 (shown in FIGS. 2 and 3) of the unit case 2. Have been. The U-turn passage 6B is formed between the case bottom wall 2B of the unit case 2 and the left and right side walls 17,17.
It is formed surrounded by. The ascending passage 6C is formed by the case wall 2C on the engine room 16 side of the unit case 2, the left and right side walls 17, 17 and the housing 1 formed in an arc shape.
2 and is formed so as to be surrounded by the back surface.

The cooling heat exchanger 7 and the heating heat exchanger 8 are connected to the down passage 6A of the air conditioning passage 6 and the U-turn passage 6B.
The cooling heat exchanger 7 is provided on the upstream side, and the heating heat exchanger 8 is provided on the downstream side.

The cooling heat exchanger 7 is composed of a refrigerant pipe through which the refrigerant flows and a number of fins (all are not shown). The cooling heat exchanger 7 is supported by upper and lower support brackets 18 provided in the unit case 2 as shown in FIG. 2, and is inclined forward by a predetermined angle toward the engine room 16 side. It has an inclined posture. The inclination angle of the cooling heat exchanger 7 is set in a range of about 0 to 30 degrees with respect to the vertical direction, and particularly, a forward inclination posture of about 20 degrees is preferable. With such an angle setting, the air from the air outlet 15 passes between the fins of the cooling heat exchanger 7 through the descending passage 2A, and an efficient flow is ensured. Is performed and cooled.

The cooling heat exchanger 7 communicates with a compressor (not shown), a condenser, and an expansion valve, and the refrigerant discharged from the compressor passes through the condenser and the expansion valve, and becomes a cooling evaporator. A refrigeration cycle that returns from the heat exchanger 7 to the compressor again is configured.

As shown in FIG. 1, the heating heat exchanger 8
Lower end of air blowing area of cooling heat exchanger 7 and door 1
0, which is located below a straight line connecting the pivot shaft 10A to the front and rear support brackets 1 and is arranged to take a substantially horizontal posture.
9 and 19 are supported. More specifically, the heating heat exchanger 8 is connected to the upper end of the slide plate 21 and the opening / closing door 10 when a sliding door device 9 described later is in a full cool mode.
Are arranged below a straight line connecting the pivot shaft 10A to the pivot shaft 10A. It is desirable that the attitude angle of the heating heat exchanger 8 be such that the upstream side rises about 10 degrees from the substantially horizontal direction. By taking such a posture, as shown in FIG. 1, the cooling heat exchanger 7 and the heating heat exchanger 8 have a substantially horizontal T-shaped layout structure, and the vertical dimension of the unit case 2 The shape is reduced.

The heating heat exchanger 8 is adapted to flow heated water heated by an engine (not shown). When air passes through the heat exchanger body, heat is exchanged and heated. It has become so.

Next, the configuration of the sliding door device 9 of the present embodiment will be described with reference to FIGS. The sliding door device 9 includes a rectangular frame 20 and this frame 20.
Plate 21 slidable on the drive shaft 22
And a rotary drive unit (not shown) for driving the drive shaft 22 to rotate.

As shown in FIG. 4, the frame 20 has a pair of frame side plates 23 and 23 formed by an arc and a chord formed by cutting a circle with a chord. 23 are arranged on both sides in the width direction w to face each other. In the center of each frame side plate 23, a bearing opening 23A is opened. A pair of substantially arc-shaped slide guide grooves (cam grooves) 23B, 23B are formed on the surfaces of the frame side plate portions 23, 23 facing each other along the arc-shaped edge. The pair of slide guide grooves 23B, 23B are formed along the arc-shaped edge as described above,
Separated at the center of the Furthermore, on the opposing surfaces of the frame side plate portions 23, 23, slide pin insertion grooves 23C, which are parallel to each other across the bearing opening 23A and communicate with the slide guide grooves 23B, 23B, respectively.
23C are formed. This slide pin insertion groove 23
C is to mount the slide plate 21 so as to overlap the curved inner surface of the frame 20 by inserting a slide pin 29 of the slide plate 21 to be described later and moving the slide plate 21 laterally along the slide guide groove 23B. enable.

The distance between the frame side plates 23, 23 is set substantially equal to the width of the air passage area of the cooling heat exchanger 7. These frame side plates 23, 23
Are opposed to each other by a frame horizontal frame portion 24,
24. In addition, these frame side plate portions 2
A guide plate portion 2 extending along the arcuate edges of the arcs 3 and 23 from the edge toward the inside facing the inside with a width of a predetermined dimension.
5, 25 are formed. In addition, the frame horizontal frame 2
The central portions in the width direction w of 4 and 24 are connected by a central guide plate portion 26 that is curved in the same manner as the guide plate portion 25. Further, the central portions of the guide plates 25, 25 and the central guide plate 26 in the vertical direction h (indicated by an arrow in FIG. 4) are connected to each other by a reinforcing horizontal plate 27. As a result, the frame horizontal frame 2
The opening surface formed of a curved surface formed by being surrounded by 4, 24 and the guide plate portions 25, 25 is divided into a cross shape by a center guide plate portion 26 and a reinforcing horizontal plate portion 27. And two lower openings 28B, 28B located on the lower side of the frame 20.
Are formed.

The slide plate 21 is connected to the frame 20 described above.
It is a rectangular plate that is curved in the same manner as the degree of curvature of the curved opening surface of the frame 20, and is disposed inside the curved opening surface of the frame 20. Further, slide pins 29 projecting outward in the width direction w are integrally formed at upper and lower ends of both side edges in the width direction w of the slide plate 21. On the surface of each slide pin 29, a slide cylinder 29A made of a material that is easy to slide on the inner wall of the slide guide groove 23B of the frame side plate portion 23 is covered. Further, rack teeth 30 are engraved on the curved inner surfaces of both side edges in the width direction w of the slide plate 21 along the side edges. Note that the gear defining ribs 4 are provided on the slide plate 21 at positions inside the row of the rack teeth 30 in the width direction w.
2 are provided along the vertical direction h. In the center of the gear defining rib 42, a rotating cylindrical body 32 to be described later is provided.
A positioning notch 42A is provided for positioning the bearing with the bearing opening 23A. This slide plate 2
The dimension in the width direction w is substantially the same as the distance between the pair of frame side plates 23 of the frame 20. The dimension of the slide plate 21 in the up-down direction h is set slightly longer than half of the guide plate portion 25 of the frame 20, and when the slide plate 21 is mounted on the frame 20, the pair of upper openings 28 </ b> A , 28A and one of the pair of lower openings 28B, 28B are set so as to be able to entirely close or open.

The drive shaft 22 is set to have substantially the same length as the length of the slide plate 21 in the width direction w. At both ends of the drive shaft 22, a pinion gear 3
Each of the rotary cylinders 32 provided with the gear portion 32F formed with 1 is mounted. The gear portion 32 of the rotary cylinder 32
A cylindrical shaft 32 </ b> A having a diameter smaller than that of the pinion gear 31 is coaxially protruded from the outside of F (the outer direction in the case where the pair of rotary cylinders 32 and 32 are arranged to face each other). The cylindrical shaft 32A is rotatably supported by a bearing opening 23A formed at the center of the frame side plate 23 of the frame 20. A connecting groove 32B is formed on the end face of the cylindrical shaft 32A so as to be connected to a rotation driving means (not shown) to transmit the rotation driving force. FIG. 8 is a cross-sectional view of the rotating cylinder 32 cut in the axial direction. As shown in FIG. 32D are provided. The stopper portion 32D allows the drive shaft 22 to be inserted from the cylinder shaft 32A side, and prevents the drive shaft 22 from being inserted and advanced from the opposite direction.
It is formed of an elastic member that rises obliquely toward the inner side surface.

FIG. 5 is a perspective view showing a state where the slide door device 9 is constructed by assembling the frame 20, the slide plate 21, and the drive shaft 22. FIG. 6 shows that the sliding door device 9 is moved along the drive shaft 22 into the frame 2.
FIG. 7 is a cross-sectional view showing a state cut at the center of the slide plate 21 and the slide plate 21. FIG. 7 is a sectional view taken along line AA of FIG. In addition,
FIGS. 6 and 7 show a state where the slide plate 21 is located at an intermediate position with respect to the frame 20.

Here, the drive shaft 22 and the rotary cylinder 32 are mounted so that the slide plate 21 set so as to overlap the frame 20 can slide on the frame 20 via the drive shaft 22 side. The attachment procedure will be described with reference to FIGS.

First, as shown in FIG. 8, the drive shaft 22 is inserted into one of the rotary cylinders 32 from the cylinder shaft 32A side. At this time, the stopper member 32D rising in the shaft through-hole 32C falls down against the repulsive force as shown in FIG. 9 to allow the drive shaft 22 to be inserted.

Next, as shown in FIG.
The slide plate 21 is set for. At this time, the slide plate 21 is arranged so as to be located at the middle (center) in the vertical direction with respect to the frame 20. Then, as shown in the figure, the end of the drive shaft 22 protruding from the cylinder shaft 32A side of the rotary cylinder 32 is inserted into the bearing opening 23A of the frame side plate 23 from the inside facing away. At this time, by aligning the outer periphery of the pinion gear 31 of the rotary cylinder 32 with the positioning notch 42A of the gear defining rib 42 formed along the vertical direction of the slide plate 21,
As shown in FIG. 11, the rotating cylinder 22 is connected to the bearing opening 2.
3A can be fitted and mounted.

Subsequently, as shown in FIG. 12, in this state, the bearing opening portion 23 on the other frame side plate portion 23 side is formed.
A, the other rotary cylinder 32 is mounted in the same manner as the one rotary cylinder 32. In this case as well, the positioning notch 42A of the gear defining rib 42 causes the cylindrical shaft 32 of the rotary cylindrical body 32 to rotate.
A is positioned in the bearing opening 23A and can be easily inserted. Then, as shown in the same figure, while maintaining the state in which one rotary cylinder 32 is in close contact with one frame side plate portion 23, only the drive shaft 22 is pushed out toward the other frame side plate portion 23 side, and the other Rotating cylinder 32
The drive shaft 22 is inserted into the shaft through hole 32C from the inside of the shaft. Finally, the drive shaft 22 is pushed out until the state shown in FIG. 13, that is, the other end of the drive shaft 22 reaches the stopper member 32D in the shaft through hole 32C of the other rotary cylinder 32, One rotating cylinder 3
One end of the drive shaft 22 in the second shaft through-hole 32C passes through the stopper members 32D, 32D, and the stopper members 32D, 32D are again erected by repulsive force. The reversal of the part is regulated. In this manner, the slide plate 21 is
On the other hand, by the rotation of the rotary cylinder 32 and the drive shaft 22, the procedure of slidably mounting can be completed.

As shown in FIGS. 1 and 2, the sliding door device 9 having the above-described structure is provided with support brackets 18, 1 in the unit case 2 for mounting the cooling heat exchanger 7.
8, door support brackets 33, 33 formed integrally with each other.
It is attached to. As described above, the slide door device 9 according to the present embodiment includes the frame 20 and the slide plate 2.
The door support bracket 3 has a compact structure in which the drive shaft 22 and the rotary cylinder 32 are assembled.
3, 33 can be easily attached. In the slide door device 9, the curved and protruding side faces the downstream side,
In addition, they are arranged and mounted such that the upper openings 28A, 28A are located above and the lower openings 28B, 28B are located below. When the slide door device 9 is mounted in the unit case 2 in this manner, the rotation transmission connection portion (not shown) of the rotation drive means is inserted into the connection groove 32B of the rotary cylinder 32 mounted on the end of the drive shaft 22. Is connected, and the rotation of the rotary cylinder 32 is enabled by controlling the rotation driving means.

The upper open ports 4 and 5 are arranged in a concentrated manner on the case wall 2C on the engine room 16 side and the upper wall 2D continuing from the case wall 2C. Upper wall 2
The upper opening port 5 provided in D is a vent port, and the upper opening port 4 provided in the case wall 2C on the engine room 16 side is a defroster port. An opening / closing door 11 is provided between the upper opening ports 4 and 5 to switch and control the upper opening ports 4 and 5 alternately.

The upper opening port 5 serving as a vent port includes:
As shown in FIG. 6, a ventilator duct 3 having indoor air outlets 34C, 34L, 34R at the center and both left and right sides.
4 are connected. As shown in FIG.
, The distances to the indoor air outlets 34C, 34L, 34R, particularly the distances to the indoor air outlets 34C can be made relatively long.
It is possible to make air flow almost uniformly toward L and 34R. On the other hand, an upper opening 4 serving as a defroster port
Is connected to a defroster duct 36 for blowing air toward a windshield 35.

Further, in FIG. 1, reference numeral 37 denotes a foot opening as an entrance of a foot outlet passage for sending air to the foot, and reference numeral 38.
Indicates a drain pool. The opening and closing of the foot opening 37 is controlled by the opening and closing door 10. The drain reservoir 38 is partitioned by a partition plate 39, and has a structure that is not directly affected by air passing through the cooling heat exchanger 7. A drain port (not shown) is provided at the bottom of the drain reservoir 38.

In the vehicle air conditioner unit 1 thus configured, the air blown from the blower 3 passes through the cooling heat exchanger 7 and the heating heat exchanger 8 to be cooled or heated. The mixture is mixed in the air mixing chamber indicated by reference numeral 40 in FIG. The conditioned air is blown into the passenger compartment 14 by controlling the opening and closing of each of the opening and closing doors 10 and 11.

In these series of operations, in the case of ventilator blowing, the conditioned air is supplied to the engine room 16.
When ascending along the ascending passage 6C on the side, the air flows along the back surface of the arc-shaped (curved) housing 12, and a smooth flow toward the indoor outlets 34C, 34L, 34R is obtained. Moreover, as a result of ensuring a long approaching distance of the air to the indoor outlet 34C, a continuous and smooth flow with small airflow resistance can be produced as shown by the arrow a in FIG. Outlets 34C, 34
Air can be blown from the L and 34R substantially evenly.

The opening / closing door 11 is provided in the engine room 1
Since it is located on the sixth side, there is an advantage that the opening and closing sound transmitted into the vehicle interior 14 is reduced. Moreover, the vehicle air conditioning unit 1 can be assembled to the steering fixing member 41 in advance by using the steering fixing member 41 as shown in FIG. In this case, since the casing 14 side of the unit case 2 is supported by the steering fixing member 41, the mounting portion of the opening and closing door 11 is far from the supporting point,
Even if distortion occurs in the unit case 2 near the support point, the influence of the distortion is not easily transmitted to the opening / closing door 11, and the opening / closing door 1
1 can be maintained smoothly.

Although the embodiments have been described above, the present invention allows various design changes accompanying the gist of the configuration. For example, in the above-described embodiment, the frame 20 and the slide plate 21 constituting the slide door device 9 are curved so as to swell toward the downstream side. It is possible.

In the above embodiment, the frame 2
0 has a configuration in which four pairs of upper openings 28A, 28A and a pair of lower openings 28B, 28B have openings, but the number of openings can be appropriately set. In the above-described embodiment, the guide plate 25 and the central guide plate 26 are formed on the frame 20, but the present invention is not limited to this.

The above-described embodiment is an example in which the sliding door device 9 according to the present invention is applied to the air conditioning unit 1 for a vehicle. It goes without saying that a door device can be applied.

Further, in the above-described embodiment, the stopper member 32D which is resilient and rises obliquely is provided in the shaft through hole 32C of the rotary cylinder 32, but the end of the drive shaft 22 is moved in one direction. Other means to allow passage only to
A member may be employed. In addition, instead of the stopper member 32D, a configuration may be employed in which a protrusion capable of holding the end of the drive shaft 22 with a predetermined stress is simply provided.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a vehicle air conditioning unit according to the present invention.

FIG. 2 is a perspective view showing a half of a unit case used in the embodiment.

FIG. 3 is a perspective view of the vehicle air conditioning unit of the embodiment.

FIG. 4 is an exploded perspective view of the slide door device used in the embodiment.

FIG. 5 is a perspective view of a slide door device used in the embodiment.

FIG. 6 is a cross-sectional view showing a state in which the slide door device is cut along the drive shaft at the center of the frame and the slide plate.

FIG. 7 is a sectional view taken along the line AA of FIG. 6;

FIG. 8 is a cross-sectional view showing a state in which the rotary cylinder is cut along the axial direction, and showing a state before a drive shaft is inserted.

FIG. 9 is a cross-sectional view illustrating a state in which the rotary cylinder is cut along the axial direction, and illustrates a state in which the drive shaft is inserted.

FIG. 10 is a cross-sectional view showing a state before the rotary cylinder having the drive shaft inserted therein is inserted into the bearing opening.

FIG. 11 is a cross-sectional view showing a state in which a rotary cylinder body into which a drive shaft is inserted is inserted into a bearing opening.

FIG. 12 is a cross-sectional view showing a state before a drive shaft is inserted into the other rotary cylinder.

FIG. 13 is a cross-sectional view showing a state where the drive shaft is inserted into the other rotary cylinder.

[Explanation of symbols]

 Reference Signs List 9 slide door device 20 frame 21 slide plate 22 drive shaft 23 frame side plate 23A bearing opening 23B slide guide groove 28A upper opening 28B lower opening 29 slide pin 30 rack teeth 31 pinion gear 32 rotating cylinder 32A cylinder shaft 32D Stopper part 32F Gear part

Claims (4)

[Claims] An opening (28A, 28A, 28B, 28)
B) on which the frame (20) is formed and the frame (2)
(9) A slide door device (9) which is provided along one side surface side and has a slide plate (21) which is slidably driven with respect to the one side surface and controls an opening sectional area of the openings (28A, 28B). ), A pair of frame side plates (23, 23) facing each other on both sides in the width direction of the frame (20), and a bearing opening (23A) is provided at the center of each of the frame side plates (23). ) Is formed to penetrate, and rack gears (30) are formed on both sides in the width direction of the slide plate (21) along the sliding direction of the slide plate (21), and the rack gear of the slide plate (21) is formed. The gear portion (32F) formed on the outer peripheral surface with a pinion gear (31) meshing with the (30), and the bearing in a state where the pinion gear (31) and the rack gear (30) are meshed. Opening (2
3A) The cylindrical shaft part (32A) of the rotary cylindrical body (32) integrally formed coaxially with the cylindrical shaft part (32A) rotatably fitted to the frame side plate part (23) on both sides. And the end of the drive shaft (22) is inserted into the cylindrical hole (32C) of the rotary cylindrical body (32) on both sides. The rotation cylindrical body (32) is fitted to the rotary cylindrical body (32) so as to be able to transmit rotation in a state where the movement of the rotary cylindrical body (32) in the opposing outward direction is restricted by the stopper part (32D).
D) allows the engaging portion of the drive shaft (22) to be inserted from the cylindrical shaft portion (32A) side and pass therethrough, and the end of the drive shaft (22) is connected to the gear portion (32).
F) A slide door device which is inserted from the side to prevent passage. 2. A sliding door device (9) according to claim 1, wherein:
The rack gear (30) is located inward of the slide plate (21) in the width direction from the position where the rack gear (30) is formed.
And a gear defining rib (42) adjacent to the rotary cylinder (3) is formed at a predetermined position of the gear defining rib (42).
2) The cylindrical shaft portion (32A) is connected to the bearing opening portion (23).
A sliding door device, wherein a positioning notch (42A) that can be guided to A) is formed. 3. The slide door device (9) according to claim 1, wherein the stopper portion (32D) is provided in the cylindrical hole (32C) of the rotary cylindrical body (32). A slide door device comprising: an elastic member (32D) which stands obliquely with respect to a direction from a cylinder shaft portion (32A) side to the gear portion (32F) side. 4. The slide door device according to claim 1, wherein a slide guide groove (23B) is formed on the opposed inner surface of the frame side plate portion (23) along the slide direction. ) Is formed, and slide pins (29) which are slidably received in the slide guide grooves (23B) are protruded from both side ends of the slide plate (21). apparatus.