JP2010149759A - Positioning and joining structure of divided unit case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a positioning and joining structure of a divided unit case, which inhibits protrusion outside and prevents displacement in a rotating direction. <P>SOLUTION: A location pin 2 arranged on the joining surface 50A of a first divided unit case (100A) includes: a cylinder 4 inserted through a location pipe 3; a hook 5 arranged in the outer circumference of the cylinder 4; and a locking part 6 arranged at an end of the hook 5. The location pipe 3 arranged on the joining surface 50B of a second divided unit case (100B), is constituted to have a slit 7 through which the hook 5 and the locking part 6 are inserted. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a positioning and connecting structure for a split unit case in which a plurality of split case portions are connected by a locate pin and a locate pipe.

Conventionally, with the aim of facilitating disassembly while ensuring high-accuracy and high-strength assembly, an engagement hook is provided outside the locate pin and an engagement receiving part is provided outside the locate pipe Then, when the split unit portions are coupled, a split unit case positioning and coupling structure is known in which the locate pin is inserted into the locate pipe and the engagement hook is engaged with the engagement receiving portion ( For example, see Patent Document 1).
JP 2001-310617 A

  However, the conventional split unit case positioning and coupling structure described in Patent Document 1 is configured such that an engagement hook is provided outside the locate pin and an engagement receiving portion is provided outside the locate pipe. Therefore, there has been a problem that the protrusion to the outside becomes large.

  Further, the conventional split unit case positioning and coupling structure described in Patent Document 1 has a configuration in which the engagement hook is engaged with and coupled to the engagement receiving portion protruding outward. There has been a problem that the rotational direction may be shifted.

  The present invention has been made paying attention to the above problems, and an object of the present invention is to provide a positioning and coupling structure for a split unit case that can prevent a large protrusion to the outside and prevent a shift in the rotation direction. .

In order to achieve the above object, in the present invention, a locating pin is provided on the coupling surface of the first divided case portion, and the coupling surface of the second divided case portion that is coupled to the first divided case portion includes In the positioning and coupling structure of the divided unit case in which a locate pipe is provided at a position corresponding to the locate pin when coupled with the first divided case portion, and a plurality of divided case portions are coupled to form one unit case.
The locating pin has a cylindrical portion inserted through the locating pipe, a hook portion provided on an outer periphery of the cylindrical portion, and a locking portion provided at a tip of the hook portion. It has a slit part through which the hook part and the locking part are inserted.

  According to the positioning and coupling structure of the divided unit case of the present invention, when a plurality of divided case parts are joined, the hook part and the locking part are inserted and joined through the slit part. As a result, it is possible to prevent a large protrusion outward and to prevent a shift in the rotational direction.

  Hereinafter, the best mode for realizing the positioning and coupling structure of the divided unit case of the present invention will be described based on Examples 1 to 3 shown in the drawings.

  First, the configuration will be described.

  FIG. 1 is an exploded view showing a vehicle air conditioning unit case 100 according to the first embodiment, and FIG. 2 is a main part showing a positioning and coupling structure 1 of a first divided case portion 100A and a second divided case portion 100B. It is an expansion perspective view.

  Hereinafter, based on FIG. 1 and FIG. 2, the whole structure of the vehicle air conditioning unit case 100 is demonstrated.

  As shown in FIG. 1, the vehicle air conditioning unit 100 according to the first embodiment (an example of a divided unit case) includes a first divided case portion 100A and a second divided case that is coupled to the first divided case portion 100A. Part 100B.

  A locating pin 2 is provided on the coupling surface 50A of the first divided case portion 100A, and the coupling surface 50B of the second divided case portion 100B corresponds to the locating pin 2 when coupled to the first divided case portion 100A. A locate pipe 3 is provided at a position where the

  A plurality of positioning and coupling structures 1 constituted by the locate pin 2 and the locate pipe 3 are provided in the vehicle air conditioning unit case 100. The locate pin 2 and the locate pipe 3 are made of synthetic resin or the like.

As shown in FIG. 2, the locate pin 2 includes a cylindrical portion 4 inserted through the inside of the locate pipe 3, a hook portion 5 provided on the outer periphery of the cylindrical portion 4, and a latch provided at the tip of the hook portion 5. A portion 6, a tapered taper portion 8 provided on the distal end side of the cylindrical portion 4, and an insertion entrance side engagement surface 9 provided on the upper portion of the cylindrical portion 4 are provided.
The height D1 of the hook portion 5 and the locking portion 6 was set to a height at which the hook portion 5 and the locking portion 6 and the locate pipe 3 are recognized as the same plane in appearance. That is, the height D1 of the hook part 5 and the locking part 6 was set to the same height as the thickness D2 of the locate pipe 3 (D1 = D2).
The taper taper portion 8 has its tip end surface set at an extended position in the insertion direction from the tip of the locking portion 6. That is, the distal end surface of the tapered tapered portion 8 is positioned below the distal end of the locking portion 6.
The insertion entrance side engagement surface 9 is configured to block the entire insertion entrance side of the locate pipe 3 when the insertion into the locate pipe 3 is completed. The outer diameter of the insertion entrance side engagement surface 9 is The outer diameter of the locate pipe 3 was set equal.

As shown in FIG. 2, the locate pipe 3 includes a slit portion 7 through which the hook portion 5 and the locking portion 6 are inserted.
The vertical length L2 of the slit portion 7 was set equal to the vertical length L1 of the hook portion 5 (L1 = L2).

  3 is a front view showing the structure of the locate pin 2 and the locate pipe 3 in FIG. 2, FIG. 4 is an enlarged front view showing the structure of the locking portion 6 of the locate pin 2 in FIG. 3, and FIG. It is a front enlarged view which shows the structure of the front-end | tip of the locate pipe 3 of FIG.

  Hereinafter, the configuration of the locate pin 2 and the locate pipe 3 will be described in more detail with reference to FIGS.

  In the locate pin 2, as shown in FIG. 3, the width D5 of the locking portion 6 is set wider than the width D4 of the tip of the slit portion 7 (D4 <D5).

As shown in FIG. 3, the locating pipe 3 has a width D4 at the tip of the slit portion 7 set equal to the width D3 of the hook portion 5 (D3 = D4), and an insertion inlet width D6 of the slit portion 7 is set as a locking portion. 6 wider than the width D5 of 6 (D5 <D6).
That is, the relationship among the width D3 of the hook portion 5, the width D4 of the tip of the slit portion 7, the width D5 of the locking portion 6, and the insertion entrance width D6 of the slit portion 7 is D3 = D4 <D5 <D6.
The slit portion 7 is configured to have a pair of inclined walls 7a and 7a that connect the width D4 of the tip of the slit portion 7 and the insertion entrance width D6 of the slit portion 7 over the entire length.

  As shown in FIG. 4, the locate pin 2 has pin-side engagement surfaces 6 a and 6 a that are inclined downwardly toward the distal end of the locking portion 6 with respect to the engaging surface of the locking portion 6.

  As shown in FIG. 5, the locate pipe 3 is formed so as to be in surface contact with the side surface of the hook portion 5 and the pipe side engagement surface 7c inclined so as to be in surface contact with the pin side engagement surfaces 6a, 6a. It has a flat part 7b.

  In FIG. 1, an air filter 10, an evaporator 11, a heater core 12, an air mix door 13, a blower 14, a foot door 15, a vent door 16, and a differential door 17 are provided in the second divided case portion 100 </ b> B.

  Next, the operation will be described.

  6A and 6B are schematic diagrams for explaining the operation of inserting the locate pin 2 into the locate pipe 3, wherein FIG. 6A is a diagram showing a state before insertion, and FIG. 6B is a state during the insertion operation. (C) is a figure which shows the state which insertion was completed.

  FIG. 7 is a partially enlarged view showing the state of the locking portion 6 and the tip of the locate pipe 3 in FIG.

  Hereinafter, based on FIG. 6 and FIG. 7, the effect | action of the positioning coupling structure of the air conditioning unit case 100 for vehicles is demonstrated.

  When the vehicle air conditioning unit 100 is formed by the positioning and coupling structure 1 according to the first embodiment, the first divided case portion 100A with respect to the second divided case portion 100B in which the air filter 10, the evaporator 11, and the like are provided. Combine to cover.

  At this time, the coupling surface 50A of the first divided case portion 100A and the coupling surface 50B of the second divided case portion 100B are brought into surface contact, and at the same time, the cylindrical portion 4 of the locate pin 2 is inserted through the locate pipe 3, and The hook portion 5 and the locking portion 6 provided on the locate pin 2 are inserted into the slit portion 7 provided on the locate pipe 3.

  First, as shown in FIG. 6A, when the locate pin 2 is moved in the direction of the arrow A that is the insertion direction, the tapered tapered portion 8 first enters the locate pipe 3.

  Here, since the diameter R1 of the tip surface of the tapered tapered portion 8 is smaller than the inner diameter R2 of the locate pipe 3 (R1 <R2), the center axis of the locate pin 2 and the center axis of the locate pipe 3 do not necessarily coincide with each other. However, it is possible to put the tapered tapered portion 8 in the locate pipe 3.

  Even if the central axes do not coincide with each other, after the tapered taper portion 8 enters the locate pipe 3, the tapered taper portion 8 is pushed by the locate pipe 3, so that the central axis is The locating pin 2 is inserted while being corrected to match.

  When the locate pin 2 is further moved in the direction of the arrow A, the locking portion 6 enters the insertion opening of the slit portion 7. Thereafter, as shown in FIG. 6B, the locating pin 6 is inserted into the locating pipe 3 while the locking portion 6 gradually expands the slit portion 7 (inclined wall 7a, flat portion 7b) in the left-right direction. Go.

  Furthermore, as shown in FIG. 6C, when the locking portion 6 passes through the slit portion 7 and the insertion is completed, the slit portion 7 that has been pushed to the left and right returns to its original state due to elastic deformation.

  At this time, the height D1 of the hook portion 5 and the locking portion 6 is set to the same height as the thickness D2 of the locate pipe 3 (D1 = D2), so that the hook portion 5 and the locking portion 6 are located in the locate pipe. It does not jump out from 3 toward the outside.

  As shown in FIG. 7, the locking portion 6 engages with the pin-side engagement surfaces 6 a and 6 a in surface contact with the pipe-side engagement surfaces 7 c and 7 c of the slit portion 7. Since the contact surface between the pin-side engagement surface 6a and the pipe-side engagement surface 7c is inclined with respect to the insertion direction, the direction of the force applied to these contact surfaces is different from the insertion direction, as indicated by an arrow B. become.

Here, since the vertical length L1 of the hook portion 5 is equal to the vertical length L2 of the slit portion 7, the engaging portion 6 and the insertion entrance side engaging surface 9 are engaged with the locate pipe 3, respectively. Thus, the locking portion 6 and the insertion entrance side engagement surface 9 sandwich the locating pipe 3 and fix the vertical movement.
Furthermore, as shown in FIG. 7, the flat portions 7 b and 7 b of the slit portion 7 sandwich the side surface of the hook portion 5 in surface contact from the left and right directions, and fix the movement of the hook portion 5 in the left and right directions.

  Next, the effect will be described.

  In the vehicle air conditioning unit 100 according to the first embodiment, the following effects can be obtained.

  (1) A locating pin 2 is provided on the coupling surface 50A of the first divided unit case portion 100A, and the coupling surface 50B of the second divided case portion 100B coupled to the first divided case portion 100A has a first surface A locating pipe 3 is provided at a position corresponding to the locating pin 2 when coupled to the divided case portion 100A, and a plurality of divided case portions (first divided unit case portion 100A, second divided case portion 100B) are coupled to each other. In the positioning and coupling structure 1 of the divided unit case (vehicle air conditioning unit case 100) that forms one unit case, the funnel pin 2 is provided on the outer periphery of the cylindrical portion 4 and the cylindrical portion 4 inserted through the locate pipe 3. The locating pipe 3 includes a hook portion 5 and a locking portion 6 provided at the tip of the hook portion 5, and the locate pipe 3 is inserted into the hook portion 5 and the locking portion 6. A lit portion 7 is provided. For this reason, it does not protrude greatly to the outside, and a shift in the rotation direction can be prevented.

  (2) In the locate pin 2, the height D1 of the hook portion 5 and the locking portion 6 is set to a height at which the hook portion 5, the locking portion 6, and the locate pipe 3 are recognized as the same plane in appearance. For this reason, when insertion is completed, the hook part 5 and the latching part 6 do not protrude outward from the locate pipe 3, and a space is not required.

  (3) The locating pin 2 has a tapered tapered portion 8 formed on the distal end side of the cylindrical portion 4, and the tapered tapered portion 8 has its distal end surface set at an extended position in the insertion direction from the distal end of the locking portion 6. For this reason, even if the center axis of the locating pin 2 and the center axis of the locating pipe 3 do not necessarily coincide with each other, the tapered taper portion 8 can be inserted into the locating pipe 3 and the position of the center axis It is not necessary to perform deviation correction.

  (4) In the locate pipe 3, the width D4 of the tip of the slit portion 7 is set equal to the width D3 of the hook portion 5. For this reason, the rotation deviation of the hook part 5 can be prevented.

  (5) The locating pin 2 sets the width D5 of the locking portion 6 wider than the width D4 of the tip of the slit portion 7, and the locating pipe 3 sets the insertion entrance width D6 of the slit portion 7 to the width D5 of the locking portion 6. The slit portion 7 is configured to have a pair of inclined walls that connect the width D4 of the tip of the slit portion 7 and the insertion entrance width D6 of the slit portion 7 over the entire length. For this reason, while being able to put the latching | locking part 6 in the slit part 7 easily, a big load is not applied between the latching | locking part 6 and the slit part 7, and damage can be suppressed.

  (6) The locate pipe 3 is configured to have flat portions 7b and 7b that come into contact with the side surface of the hook portion 5 when the locate pin 2 and the locate pipe 3 are fitted. For this reason, the hook part 5 can be fixed more stably with respect to rotational deviation.

  (7) The locating pin 2 has pin-side engaging surfaces 6a and 6a in which the engaging surface of the engaging portion 6 is inclined downward toward the tip of the engaging portion 6, and the locate pipe 3 is provided on the pin side. The engaging surfaces that contact the engaging surfaces 6a and 6a are configured to have pipe-side engaging surfaces 7c and 7c that are inclined so as to be in surface contact with the pin-side engaging surfaces 6a and 6a. For this reason, it is possible to prevent breakage of the locking portion 6 and the distal end portion of the locate pipe 3, and it is possible to increase the engagement strength.

  (8) The positioning coupling structure 1 is applied to the vehicle air conditioning unit case 100. Such a positioning and coupling structure 1 is useful for a vehicle air conditioning unit case 100 that is formed in a divided manner and is disposed in a narrow space.

  Example 2 is an example in which the shape of the slit portion is modified.

  First, the configuration will be described.

  FIG. 8 is a front view showing the structure of the locate pin 2 and the locate pipe 23 of the second embodiment, and FIG. 9 is an enlarged front view showing the structure of the tip of the locate pipe 23 of FIG.

  Hereinafter, based on FIG. 8 and FIG. 9, the structure of the locate pin 2 and the locate pipe 23 is demonstrated in detail.

  In the locate pin 2, as shown in FIG. 8, the width D3 of the hook portion 5 is set to be narrower than the width D5 of the locking portion 6 (D3 <D5).

As shown in FIG. 8, the locating pipe 23 sets the insertion entrance width D26 of the slit portion 27 to be equal to or larger than the width D5 of the locking portion 6 (D5 ≦ D26), and sets the width D24 at the tip of the slit portion 27 to the hook. It was set equal to the width D3 of the part 5 (D3 = D24).
That is, the relationship among the width D3 of the hook portion 5, the width D24 of the tip of the slit portion 27, the width D5 of the locking portion 6, and the insertion entrance width D26 of the slit portion 27 is D3 = D24 <D5 ≦ D26.
The slit portion 27 includes a pair of parallel walls 27 a and 27 a that maintain an insertion entrance width D 26 from the insertion entrance of the slit portion 27 to the tip region, and a pair of slopes that are inclined from the tip region toward the tip of the slit portion 7. Walls 27b, 27b.

  As shown in FIG. 9, the locate pipe 23 is formed so as to make point contact with the side surface of the hook portion 5 and the pipe side engagement surface 27 c inclined so as to be in surface contact with the pin side engagement surfaces 6 a and 6 a. It has an arc portion 27d.

  Since other configurations are the same as those of the first embodiment, the corresponding components are denoted by the same reference numerals and description thereof is omitted.

  Next, the operation will be described.

  FIG. 10 is a schematic diagram for explaining the operation of inserting the locate pin 2 into the locate pipe 23, (a) is a diagram showing a state before insertion, and (b) is a state during the insertion operation. (C) is a figure which shows the state which insertion was completed.

  Hereinafter, based on FIG. 10, the effect | action of the positioning coupling structure of the air conditioning unit case 100 for vehicles is demonstrated.

  As shown in FIG. 10A, when the locate pin 2 is moved in the direction of arrow A, which is the insertion direction, the tapered tapered portion 8 first enters the locate pipe 23.

  When the locating pin 2 is further moved in the direction of arrow A, the locking portion 6 enters the insertion opening of the slit portion 27, and then the locking portion 6 and the hook portion 5 are inserted through the slit portion 27 to the tip region. To do.

At this time, since the insertion entrance width D26 of the slit portion 27 is equal to or larger than the width D5 of the locking portion 6 (D5 ≦ D26), the slit portion 27 is inserted without applying a large load between the locking portion 6 and the slit portion 27.
Further, as shown in FIG. 10B, when the locking portion 6 reaches the tip region, the slit portion 27 is narrowed by the inclined walls 27b and 27b. The locating pin 2 is inserted into the locating pipe 23 while expanding the inclined walls 27b and 27b to the left and right.

  After that, as shown in FIG. 10C, when the engaging portion 6 passes through the slit portion 27 and the insertion is completed, the slit portion 27 that has been widened to the left and right returns to its original state by elastic deformation.

  At this time, the arc portions 27d and 27d of the slit portion 27 fix the hook portion 5 by sandwiching the side surface of the hook portion 5 from the left-right direction. Since these arc portions 27d and 27d sandwich the hook portion 5 at the contact points between the side surfaces of the hook portion 5 and the arc portions 27d and 27d, vibration input is applied to at least one of the hook portion 5 and the slit portion 27. In some cases, the hook portion 5 moves along a tangent line.

  Since other operations are the same as those of the first embodiment, description thereof is omitted.

  Next, the effect will be described.

  In the positioning and coupling structure of the divided unit case of the second embodiment, in addition to the effects (1) to (8) of the first embodiment, the following effects can be obtained.

  (9) The locate pin 2 sets the width D5 of the locking portion 6 to be wider than the width D24 at the tip of the slit portion 27, and the locate pipe 23 sets the insertion entrance width D26 of the slit portion 27 to the width D5 of the locking portion 6. The slit portion 27 is set as described above, and the slit portion 27 is inclined toward the tip end of the slit portion 27 from the pair of parallel walls 27a and 27a maintaining the insertion entrance width D26 from the insertion entrance of the slit portion 27 to the tip region. And a pair of inclined walls 27b, 27b. For this reason, the latching | locking part 6 can be penetrated without applying big load until it reaches the front-end | tip area | region of the slit part 27, and can perform an insertion operation | work easily.

  (10) The locate pipe 23 is configured to have arc portions 27b and 27b that contact the side surface of the hook portion 5 when the locate pin 2 and the locate pipe 23 are fitted. For this reason, the engagement between the hook portion 5 and the slit portion 27 can be maintained stably even with respect to vibration input.

  In addition, as shown in FIG. 11, it can also be set as the structure which provides the flat part 27e similarly to Example 1 instead of the circular arc part 27d. According to such a configuration, since the flat portions 27e and 27e and the side surface of the hook portion 5 are in surface contact with each other, the hook portion 5 can be stably fixed against rotational deviation.

  The third embodiment is also an example in which the shape of the slit portion is modified.

  First, the configuration will be described.

  FIG. 12 is a front view illustrating the structure of the locate pin 2 and the locate pipe 33 according to the third embodiment. Hereinafter, the configuration of the locate pipe 33 will be described in detail with reference to FIG.

As shown in FIG. 12, the locating pipe 33 sets the insertion entrance width D36 of the slit portion 37 to be equal to or larger than the width D5 of the locking portion 6 (D5 ≦ D36), and sets the width D34 at the tip of the slit portion 27 to the hook. It was set equal to the width D3 of the part 5 (D3 = D34).
That is, the relationship among the width D3 of the hook portion 5, the width D34 of the tip of the slit portion 37, the width D5 of the locking portion 6, and the insertion entrance width D36 of the slit portion 37 is D3 = D34 <D5 ≦ D36.

  The slit portion 37 includes a pair of first parallel walls 37a and 37a that maintain the insertion entrance width D36 of the slit portion 37, and a pair of second parallel walls 37e and 37e that maintain the width D34 of the tip of the slit portion 37. A pair of inclined walls 37b, 37b inclined from the first parallel walls 37a, 37a toward the second parallel walls 37e, 37e.

  The pair of second parallel walls 37e, 37e is set from a substantially middle portion to the tip of the slit portion 37, and comes into surface contact with the side surface of the hook portion 5 when the locate pin 2 and the locate pipe 33 are fitted.

  Since other configurations are the same as those in the first and second embodiments, the corresponding components are denoted by the same reference numerals and description thereof is omitted.

  Next, the operation will be described.

  FIG. 12 is a schematic diagram for explaining the operation of inserting the locate pin 2 into the locate pipe 33, (a) is a diagram showing a state before insertion, and (b) is a state during the insertion operation. (C) is a figure which shows the state which insertion was completed. Hereinafter, based on FIG. 12, the effect | action of the positioning coupling structure of the air conditioning unit case 100 for vehicles is demonstrated.

  When the locate pin 2 is moved in the insertion direction, the taper taper portion 8 first enters the locate pipe 33, and then the locking portion 6 moves in the insertion direction until reaching the inclined walls 37b and 37b.

  At this time, since the insertion entrance width D36 of the slit portion 37 is equal to or larger than the width D5 of the locking portion 6 (D5 ≦ D36), the slit portion 37 is inserted without applying a large load between the locking portion 6 and the slit portion 37.

  Further, as shown in FIG. 12A, when the locking portion 6 reaches the inclined walls 37b and 37b, the slit portion 37 is narrowed by the inclined walls 37b and 37b. The locating pin 2 is inserted into the locating pipe 33 while gradually expanding the inclined walls 37b and 37b of the slit portion 37 in the left-right direction.

  Further, as shown in FIG. 12 (b), the locking portion 6 pushes the second parallel walls 37e, 37e in the left-right direction and is inserted therethrough, and as shown in FIG. 12 (c), the locking portion 6 is slit. When the insertion is completed after passing through the portion 37, the slit portion 37 that has been widened to the left and right returns to its original state by elastic deformation.

  At this time, the 2nd parallel walls 37e and 37e of the slit part 37 fix the hook part 5 by pinching the side surface of the hook part 5 from the left-right direction. The second parallel walls 37e, 37e and the hook portion 5 are in surface contact with each other over a wide range, and in order to prevent a load from being applied only to a part of the slit portion 37, the hook portion 5 is more stable against rotational deviation. The slit portion 37 can be prevented from being damaged.

  Since other operations are the same as those in the first and second embodiments, description thereof is omitted.

  Next, the effect will be described.

  In addition to the effects (1) to (8) of Example 1 and the effects (9) to (10) of Example 2, the divided unit case positioning and coupling structure of Example 3 has the following effects. Obtainable.

(11) The locate pin 2 sets the width D5 of the locking portion 6 to be wider than the width D34 of the tip of the slit portion 37, and the locate pipe 33 sets the insertion entrance width D36 of the slit portion 37 to the width D5 of the locking portion 6. The slit portion 37 is set as described above, and the slit portion 37 has a pair of parallel walls (second parallel walls 37e, 37e, which have a predetermined length in surface contact with the side surface of the hook portion 5 when the locate pin 2 and the locate pipe 33 are fitted. 37e) and a pair of inclined walls 37b and 37b which are inclined.
For this reason, the hook part 5 can be more stably fixed with respect to rotation deviation, and the breakage | damage of the slit part 37 can be prevented.

In addition, it replaces with the 1st parallel walls 37a and 37a of the slit part 37, and the inclined walls 37b and 37b, and it comprises so that a pair of inclined wall which connected the insertion entrance of the slit part 37 and the 2nd parallel walls 37e and 37e may be provided. May be.
According to such a configuration, since the inclination of the inclined wall provided in the slit portion 37 becomes gentle, a large load is not applied between the locking portion 6 and the slit portion 37, and the breakage is more effective. Can be suppressed.

  As mentioned above, although the positioning coupling structure of the division | segmentation unit case of this invention has been demonstrated based on Examples 1-3, it is not restricted to these Examples about a concrete structure, Claim of Claim Design changes and additions are allowed without departing from the spirit of the invention according to each claim.

  In the first to third embodiments, the locating pin 2 has the insertion inlet side engagement surface 9 that engages the entire insertion inlet side of the locating pipes 3, 23, 33 when the insertion to the locating pipe 3 is completed. An example is shown.

  However, the positioning and coupling structure of the split unit case according to the present invention is not limited to such a form. For example, as shown in FIG. 14, it engages with a part of the upper part of the locate pipes 3, 23, 33. It is sufficient if such an engaging portion 10 is provided.

  According to such a configuration, when performing die cutting such as resin molding, the mold can be pulled out in the vertical direction, and manufacturing can be facilitated.

  Moreover, in Example 1- Example 3, the latching | locking part 6 showed the example which pushes the slit parts 7, 27, and 37 left and right, and it penetrates.

  However, the positioning and coupling structure of the divided unit case according to the present invention is not limited to such a form, and for example, a configuration in which the tapered taper portion extends through the locating pipe and can be inserted.

  In the first to third embodiments, the application example to the vehicle air conditioning unit including the two divided case portions has been described. However, the present invention can be applied to any positioning and coupling structure of another divided unit case including the plurality of divided case portions. .

1 is an exploded view showing a vehicle air conditioning unit 100 according to Embodiment 1. FIG. It is a principal part expansion perspective view which shows the positioning coupling structure 1 of 1st division | segmentation case part 100A and 2nd division | segmentation case part 100B. It is a front view which shows the structure of the locate pin 2 and the locate pipe 3 of FIG. It is a front enlarged view which shows the structure of the latching | locking part 6 of the locate pin 2 of FIG. It is a front enlarged view which shows the structure of the front-end | tip of the locate pipe 3 of FIG. It is a schematic diagram explaining the operation | movement which inserts the locating pin 2 in the locating pipe 3, (a) is a figure which shows the state before insertion, (b) is a figure which shows the state in the middle of the insertion operation, (c) ) Is a diagram showing a state where the insertion is completed. It is the elements on larger scale which show the state of the front-end | tip of the latching | locking part 6 and the locate pipe 3 of FIG.6 (c). It is a front view which shows the structure of the locate pin 2 and the locate pipe 23 of Example 2. FIG. It is a front enlarged view which shows the structure of the front-end | tip of the locate pipe 23 of FIG. It is a schematic diagram explaining the operation | movement which inserts the locating pin 2 in the locating pipe 23, (a) is a figure which shows the state before insertion, (b) is a figure which shows the state in the middle of the insertion work, (c ) Is a diagram showing a state where the insertion is completed. It is a front enlarged view which shows the modification of the structure of the front-end | tip of the locate pipe 23 of FIG. It is a front view which shows the structure of the locate pin 2 and the locate pipe 33 of Example 3. FIG. It is a schematic diagram explaining the operation | movement which inserts the locating pin 2 in the locating pipe 33, (a) is a figure which shows the state before insertion, (b) is a figure which shows the state in the middle of the insertion operation, (c ) Is a diagram showing a state where the insertion is completed. It is an expansion perspective view which shows the modification of the structure of the locate pin 2 of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Positioning coupling structure 2 Locating pin 3 Locating pipe 4 Cylindrical part 5 Hook part 6 Locking part 7 Slit part 8 Tapered taper part 9 Insertion entrance side engaging surface D1 Hook part and locking part height D2 Locating pipe thickness L1 Vertical length L2 of hook part Vertical length of slit part

Claims (11)

A locating pin is provided on the coupling surface of the first divided case portion, and the coupling surface of the second divided case portion that is coupled to the first divided case portion is coupled to the first divided case portion. In the positioning and coupling structure of the divided unit case in which a locate pipe is provided at a position corresponding to the locate pin, and a plurality of divided case parts are coupled to form one unit case,
The locate pin has a cylindrical portion inserted through the locate pipe, a hook portion provided on an outer periphery of the cylindrical portion, and a locking portion provided at a tip of the hook portion,
The locating pipe has a slit unit through which the hook part and the locking part are inserted. In the positioning and coupling structure of the divided unit case according to claim 1,
The locating pin has a division in which the height of the hook portion and the locking portion is set to a height at which the hook portion, the locking portion, and the locating pipe are recognized to be the same plane in appearance. Unit case positioning coupling structure. In the positioning and coupling structure of the divided unit case according to claim 1 or 2,
The locate pin forms a tapered portion on the tip side of the cylindrical portion,
The taper taper portion has a distal end surface set at an extended position in the insertion direction from the distal end of the locking portion. In the positioning and coupling structure of the divided unit case according to any one of claims 1 to 3,
The locating pipe has a divided unit case positioning and coupling structure characterized in that the width of the tip of the slit portion is set equal to the width of the hook portion. In the positioning and coupling structure of the divided unit case according to claim 4,
The locate pin is set so that the width of the locking portion is wider than the width of the tip of the slit portion,
The locate pipe is set so that the insertion entrance width of the slit portion is wider than the width of the locking portion,
The split unit case positioning and coupling structure, wherein the slit portion has a pair of inclined walls that connect the width of the tip of the slit portion and the width of the insertion opening of the slit portion over the entire length. In the positioning and coupling structure of the divided unit case according to claim 4,
The locate pin is set so that the width of the locking portion is wider than the width of the tip of the slit portion,
The locate pipe sets the insertion entrance width of the slit portion to be equal to or larger than the width of the locking portion,
The slit portion has a pair of parallel walls that maintain the insertion entrance width from the insertion entrance of the slit portion to the tip region, and a pair of inclined walls that are inclined from the tip region toward the tip of the slit portion. Positioning and coupling structure of divided unit case characterized by the above. In the positioning and coupling structure of the divided unit case according to any one of claims 4 to 6,
The locating pipe has a flat part that contacts a side surface of the hook part when the locating pin and the locating pipe are fitted to each other. In the positioning and coupling structure of the divided unit case according to any one of claims 4 to 6,
The split unit case positioning and coupling structure, wherein the locate pipe has an arc portion that contacts a side surface of the hook portion when the locate pin and the locate pipe are fitted to each other. In the positioning and coupling structure of the divided unit case according to claim 4,
The locate pin is set so that the width of the locking portion is wider than the width of the tip of the slit portion,
The locate pipe sets the insertion entrance width of the slit portion to be equal to or larger than the width of the locking portion,
The slit portion includes a pair of parallel walls that secure a predetermined length that comes into surface contact with a side surface of the hook portion when the locate pin and the locate pipe are fitted, and a pair of inclined walls that are inclined. Positioning and coupling structure of divided unit case characterized by the above. In the positioning and coupling structure of the divided unit case according to any one of claims 1 to 9,
The locate pin has a pin-side engagement surface that is inclined downwardly toward the end of the locking portion with respect to the engaging surface of the locking portion;
Positioning of the divided unit case, wherein the locate pipe has a pipe side engaging surface that is inclined so that an engaging surface that contacts the pin side engaging surface is in surface contact with the pin side engaging surface Bond structure. In the positioning and coupling structure of the divided unit case according to any one of claims 1 to 10,
The divided unit case positioning and coupling structure, wherein the divided unit case is a divided unit case of a vehicle air conditioner.

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