JPH06148033A - Internal combustion engine tester with cover device - Google Patents

Abstract

PURPOSE:To reduce a space occupied by a cover when the cover is opened by forming the cover in a multiple folded type comprising a plurality of divided cover bodies. CONSTITUTION:By driving an electric motor at the time of starring a test, its rotation is transmitted to a rotating shaft 33. The shaft 33 rotates to open in a direction with a lateral axial center 28 as the center, whereby both small plates 24a rotate together with the shaft 33 so that a first divided cover body 23a rotates in a direction to open. Second to fourth divided cover bodies 23b to 23d are folded to be reduced in size together with the cover body 23a whereby a cover 23 is opened and housed in a pit in a folded state with the cover body 23d most outward and the cover body 23a most inward. Since the cover 23 is thus housed in the pit in a folded state when the cover 23 is opened, a space occupied by the cover 23 is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an internal combustion engine test apparatus for performing a performance test on an internal combustion engine before it is incorporated into a vehicle body, for example, in an automobile assembly plant.

[0002]

2. Description of the Related Art Conventionally, as an internal combustion engine test apparatus of this type, there are those shown in FIGS. 14 and 15, for example. That is, on the base 61, the support legs for supporting the test internal combustion engine 62 are provided.
63 are erected. The internal combustion engine 62 supported by the support legs 63 is covered with a cover device 64.

The cover device 64 is a supported internal combustion engine.
It is formed of fixed covers 65 and 66 that cover the front and rear of 62 and a movable cover 67 that covers both sides and the upper side of the internal combustion engine 62. The fixed covers 65 and 66 are fixedly erected on the base 61. In addition, the movable cover 67 includes the side plate portions 68.
And a top plate portion 69 continuously provided between the upper ends of these side plate portions 68 form a gate shape in a front view. At the lower end of the moving cover 67, wheels 71 traveling on rails 70 laid on the base 61 side are attached. Accordingly, the movable cover 67 is movable between the closed position A between the fixed covers 65 and 66 and the open position B behind the rear fixed cover 66 while being supported and guided by the rail 70 via the wheels 71. Is. Incidentally, 72 is an air cylinder device for moving the moving cover 67.

According to this, when the internal combustion engine 62 is tested, the movable cover 67 is closed to the closed position A as shown by the solid line in FIG.
Slide to and close. This allows the internal combustion engine
The front and rear of 62 are covered with fixed covers 65 and 66, and both sides and above are covered with movable covers 67. After that, the internal combustion engine 62 is started to perform various tests. At this time, the internal combustion engine 62
The noise generated by the cover device 64 is soundproofed.
After the test, as shown by the phantom line in FIG. 14, the moving cover 67
Is slid to the open position B and opened, and the internal combustion engine 62 is taken out upward between the fixed covers 65 and 66.

[0005]

However, according to the above-mentioned conventional type, since the movable cover 67 is slid rearward and opened, the length and width of the movable cover 67 are rearward of the test space of the internal combustion engine 62. There was a problem that a cover open space of about the same size as above was required, and the installation space for the test equipment became longer in the front and back.

The present invention solves the above problems, and an object of the present invention is to provide an internal combustion engine test apparatus with a cover device that can reduce the space occupied by the cover when the cover is opened.

[0007]

In order to solve the above problems, an internal combustion engine test apparatus with a cover device according to the present invention is
A control unit is erected on the back end side of the internal combustion engine support base, and a pair of fan-shaped side plate portions that can be positioned on both sides of the internal combustion engine support base,
A cover composed of an arc-shaped outer plate portion provided between the outer edges of these side plate portions is provided, and this cover is formed in a multi-stage foldable type composed of a plurality of divided cover bodies, and the side plate portion of each divided cover body is formed. A first engaging portion which is formed to be rotatable around the inner edge portion as a fulcrum and is expandable / reducible in the rotating direction, and which engages with the adjacent divided cover body at the time of closing, and to the adjacent divided cover body at the time of opening. A second engaging portion that engages is provided on a predetermined divided cover body.

[0008]

According to the above construction, when the cover is rotated to one side, the second engaging portions of the divided cover bodies engage with the adjacent divided cover bodies, so that the adjacent divided cover bodies are forced to move to one side. The cover is securely folded and opened. At this time, since the cover is folded in multiple stages, the space occupied by the cover is reduced. Further, by rotating the cover to the other side, the first engaging portions of the divided cover bodies engage with the adjacent divided cover bodies, so that the adjacent divided cover bodies are forcibly rotated to the other side. The folded cover is securely expanded in the rotation direction and closed. As a result, the internal combustion engine support base is covered with the cover.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 5, reference numeral 1 is a turntable, which is driven by a rotary driving device (not shown) to rotate intermittently around a vertical axis 2 at a set angle α. The test devices 4 of the internal combustion engine 3 are radially arranged at a plurality of positions on the turntable 1 at predetermined angular intervals in the circumferential direction. Reference numeral 5 is a carry-in device for supplying the internal combustion engine 3 to the test device 4, and 6 is a carry-out device for taking out the internal combustion engine 3 from the test device 4.

As shown in FIGS. 6 and 7, the test apparatus 4 is
It is composed of an internal combustion engine support base 7 and a control unit 8 standing from the rear end side of the internal combustion engine support base 7. The internal combustion engine support base 7 is provided with a base frame 9 arranged on the upper part of the turntable 1, a free roller conveyor 10 provided on the base frame 9, and a pallet 11 to be drawn onto the free roller conveyor 10. It is composed of a retracting device 12. The base frame 9 is a pair of left and right frame members.
15 and a base plate 16 installed between both frame members 15. The free roller conveyor 10 has a plurality of left and right free rollers 17. Further, the retracting device 12 is installed in the central portion between both free rollers 17, and is movable on the movable body 19 which is supported and guided by a pair of left and right guide rails 18 and is movable in the front-rear direction. It is provided with a locking pin 20 which can be retracted and provided. Above locking pin 20
Is formed so as to project above the moving body 19 and retract into the moving body 19 by a cylinder device (not shown).
Further, the pallet 11 is formed with a pin hole (not shown) into which the protruding locking pin 20 is inserted.

The control unit 8 is formed in a rectangular parallelepiped shape having substantially the same width as the internal combustion engine support base 7, and instruments and operation panels are provided on the front and side faces thereof. The internal combustion engine 3 is supported on the pallet 11 via support legs 21.

As shown in FIGS. 1 to 3, reference numeral 23 denotes a cover, which is a pair of left and right fan-shaped side plate portions 24 which can be freely positioned on both sides of the internal combustion engine support base 7, and between outer edges of these side plate portions 24. It is formed of an arc-shaped outer plate portion 25 provided. The cover 23 is a multi-stage foldable type, and is divided into four parts from a first divided cover body 23a located on the closing direction side to a fourth divided cover body 23d located on the opening direction side. Each of these divided cover bodies
23a to 23d are respectively divided into four small side plate portions 24a to 24d.
24d and four outer plate portions 25a to 25d divided into four. Further, each of the small side plate portions 24a to 24c is formed with a window 26 covered with a transparent plate such as a plastic material.

The cover 23 is formed so as to be rotatable about a horizontal axis 28 as a fulcrum, which is an inner edge of each of the small side plates 24a to 24d, and is expanded in the rotating direction. It is formed so that it can be reduced. That is, the distance between the inner side surfaces of each of the divided cover bodies 23a to 23d and the radius are determined by
23a is the smallest, the second divided cover body 23b and the third divided cover body 23c are gradually larger, and the fourth divided cover body 23d is the largest. Also, as shown in FIG.
Engagement claws 30 bent inward are formed at the ends of the divided cover bodies 23b to 23d in the closing direction. Further, at the ends of the divided cover bodies 23a to 23c in the opening direction, the first engaging claws 31 (first engaging claws 31) that engage with the engaged claws 30 of the adjacent divided cover bodies 23b to 23d at the time of closing. (An example of a part) is formed.

At the ends of the divided cover bodies 23b to 23d in the opening direction, at the time of opening, the second engaging claws 32 (the first engaging claws 32 (first holes) which engage with the first engaging claws 31 of the adjacent divided cover bodies 23a to 23c. The two engaging portions are formed by being bent inward.

As shown in FIG. 4, each of the small side plate portions 24a to 24d.
The point is that the pair of left and right rotary shafts 33 rotatably provided on the base frame 9 are rotatably fitted on the outer ends thereof. At this time, only the innermost small side plates 24a are interlockingly connected to the rotary shaft 33 via the connecting key 34. A first gear 35 is provided at the inner end of each rotary shaft 33. An electric motor 36 for rotating the first divided cover body 23a is attached to the lower surface of the base plate 16, and a drive gear 37 is provided on the drive shaft of the electric motor 36. And both rotary shafts
33 is interlocked with the electric motor 36 via an interlocking rotary shaft 40 having a second gear 38 meshing with each first gear 35 and a third gear 39 meshing with the drive gear 37. This interlocking rotary shaft 40 is
It is provided on the lower surface of the base plate 16 and is rotatable around a horizontal axis 41.

As shown in FIGS. 6 and 7, a pit 44 is formed below the internal combustion engine support base 7 for maintenance of the piping system and the folded cover 23 is stored in the pit 44. To be done. Further, stopper bodies 45 which can freely come into contact with and separate from the lower ends of the small side plate portions 24a to 24d of the folded cover 23 are attached to both inner side surfaces of the pit 44, and the base frame 9 is supported in the pit 44. A supporting leg 46 is installed.

The operation of the above structure will be described below.
As shown in FIG. 5, the internal combustion engine 3 is supplied to the test device 4 by the carry-in device 5 via the pallet 11, and during the intermittent rotation of the turntable 1, warm-up operation, idle adjustment, and various tests are performed. At this time, as shown in FIGS. 6 and 7, after the cover 23 is opened, the retracting device 12 is moved forward while being supported and guided by the guide rail 18, and the locking pin 20
Projects upward and is inserted into a pin hole (not shown) of the pallet 11. Then, the retraction device 12 moves rearward and the pallet 11 is retracted from the carry-in device 5 and supported on the internal combustion engine support base 7, whereby the internal combustion engine 3 is supported on the internal combustion engine support base 7 via the pallet 11. Then, as shown in FIG. 2, the cover 23 is closed. Figure 6 after the test
As shown in, the cover 23 is opened, and the internal combustion engine 3 is taken out from the test apparatus 4 by the carry-out apparatus 6 via the pallet 11.

At the start of the above-mentioned test, as shown in FIG. 4, by driving the electric motor 36, the rotation thereof passes through the drive gear 37, the third gear 39, the second gear 38, and the first gear 35, and the rotation shaft. Transmitted to 33. Then, since the rotary shaft 33 is opened and rotated about the horizontal axis 28 in one direction, both the small side plate portions 24a are rotated together with the rotary shaft 33, so that the first divided cover body 23a is rotated as shown in FIG. Rotates in the opening direction (pit 44 side). At this time, as shown by the phantom line in FIG. 1, the first engaging claws 31 of the first divided cover body 23a are
After being separated from the engaged claw 30 of b, the second divided cover body 23b
The second split cover body 23b is forcibly rotated in the opening direction (pit 44 side) by engaging with the second engaging claw 32 of. Similarly, the second
The first engaging claw 31 of the divided cover body 23b is the third divided cover body 23.
It engages with the second engaging claw 32 of c and forcibly rotates the third divided cover body 23c in the opening direction (pit 44 side), and further
The first engaging claw 31 of the divided cover body 23c is the fourth divided cover body 23.
The fourth split cover body 23d is forcedly rotated in the opening direction (pit 44 side) by engaging with the second engaging claw 32 of d.

In this way, the second to fourth divided cover bodies 23b to 23d are folded and reduced in conjunction with the first divided cover body 23a, so that the cover 23, as shown in FIG.
The pit is opened and folded with the fourth divided cover body 23d being the outermost side and the first divided cover body 23a being the innermost side.
It is stored in 44. At this time, as shown in FIG. 7, since the lower ends of the divided cover bodies 23a to 23d are in contact with and supported by the stopper body 45, the rotation of the divided cover bodies 23a to 23d is restricted by the stopper body 45. .

As described above, when the cover 23 is opened, the cover 23 is stored in the pit 44 in a folded state, so that the space occupied by the cover 23 is reduced and a space for maintenance is provided inside the pit 44. It can be secured wide enough. Further, the first engaging claw 31 and the second engaging claw 32 are engaged with each other to forcibly rotate the adjacent divided cover bodies 23b to 23d in the opening direction (pit 44 side). Open to the public.

When the cover 23 is closed, an electric motor is used.
By rotating the 36 in the reverse direction, the rotary shaft 33 is closed and rotated to the other centering on the horizontal axis 28. As a result, both the small side plate portions 24a rotate together with the rotary shaft 33, so that the first divided cover body 23a is closed (the control portion 8 side) as shown in FIG.
Turn to. At this time, as shown by the solid line in FIG. 1, the first engaging claws 31 of the first divided cover body 23a are connected to the second divided cover body 23b.
Since it engages with the engaged claw 30, the second split cover body 23b also rotates in the closing direction about the horizontal axis 28. Then, similarly to the second divided cover body 23b, the third divided cover body 23c and the fourth divided cover body 23d also have the respective first engaging claws 31.
By engaging each engaged pawl 30 with each other, the horizontal axis 28
Rotate in the closing direction around. In this way, the second to fourth divided cover bodies 23b to 23d are interlocked with the first divided cover body 23a.
2 is expanded, the cover 23 is surely closed as shown in FIG. 2, and the upper part of the internal combustion engine support base 7 is covered with the cover 23. Therefore, soundproofing and dustproofing can be performed during the test, and even if an abnormality occurs in the internal combustion engine 3, the internal combustion engine 3 is partitioned from the outside by the cover 23.
The safety of the outside of the cover 23 is maintained.

Next, a second embodiment of the present invention will be described with reference to FIG. That is, at the ends of the divided cover bodies 23a to 23c in the closing direction, the adjacent divided cover bodies 23b to 23b.
The second engaging claw 32 that engages with the engaged claw 30 of 23d is formed by bending outward.

According to this, when the cover 23 is opened,
By rotating the first divided cover body 23a in the opening direction (the pit 44 side), the first engaging claw 31 of the first divided cover body 23a causes the second divided cover body to move as shown by the phantom line in FIG. 23b apart from the engaged claw 30 of the second cover 23b
The second engaging claw 32 of a is the engaged claw 30 of the second split cover body 23b.
And the second divided cover body 23b is forcibly rotated in the opening direction (pit 44 side). Similarly, the second divided cover body 23
The second engaging claw 32 of b is the engaged claw 30 of the third divided cover body 23c.
The third split cover body 23c by forcibly rotating the third split cover body 23c in the opening direction (pit 44 side).
The second engaging claw 32 engages with the engaged claw 30 of the fourth split cover body 23d to forcibly rotate the fourth split cover body 23d in the opening direction (pit 44 side).

In this manner, the second to fourth divided cover bodies 23b to 23d are folded and reduced in conjunction with the first divided cover body 23a, so that the cover 23 is opened and the fourth divided cover body is opened.
It is stored in the pit 44 in a folded state with the divided cover body 23d being the outermost side and the first divided cover body 23a being the innermost side.

When the cover 23 is closed, the first
Similar to the embodiment, by engaging the first engaging claw 31 with the engaged claw 30, the second to fourth divided cover bodies 23b to 23d are expanded in association with the first divided cover body 23a, The cover 23 is securely closed.

Next, a third embodiment of the present invention will be described with reference to FIGS.
It will be described based on. That is, each divided cover body 23a-
The space between the inner surfaces of 23d and the radius are the largest in the first divided cover body 23a, and the second divided cover body 23b and the third divided cover body 23a.
It is gradually smaller in the order of c, and the fourth divided cover body 23d is formed smallest. Further, as shown in FIG. 9, engaged claws 30 bent outward are formed at the ends of the respective divided cover bodies 23b-23d in the closing direction. Furthermore, each divided cover body
A first engaging claw that engages with each engaged claw 30 of the adjacent divided cover bodies 23b to 23d at the end of the opening direction of 23a to 23c in the closing direction.
31 is formed.

Further, at the ends of the divided cover bodies 23a to 23c in the closing direction, the second engaging claws 32 that engage with the engaged claws 30 of the adjacent divided cover bodies 23b to 23d at the time of opening are inward. It is formed by bending.

As shown in FIG. 12, each of the small side plate portions 24a to 24d.
The point is that the pair of left and right rotary shafts 33 rotatably provided on the base frame 9 are rotatably fitted on the outer ends thereof. At this time, only the outermost small side plates 24a are interlocked with the rotary shaft 33 via the connecting key 34. 36
Is an electric motor for rotating the rotary shaft 33.

According to this, when the cover 23 is opened,
By rotating the first divided cover body 23a in the opening direction (the pit 44 side), the first engagement claw 31 of the first divided cover body 23a is moved to the second divided cover body as shown by the phantom line in FIG. 23b apart from the engaged claw 30 of the second cover 23b
The second engaging claw 32 of a is the engaged claw 30 of the second split cover body 23b.
And the second divided cover body 23b is forcibly rotated in the opening direction (pit 44 side). Similarly, the second divided cover body 23
The second engaging claw 32 of b is the engaged claw 30 of the third divided cover body 23c.
The third split cover body 23c by forcibly rotating the third split cover body 23c in the opening direction (pit 44 side).
The second engaging claw 32 engages with the engaged claw 30 of the fourth split cover body 23d to forcibly rotate the fourth split cover body 23d in the opening direction (pit 44 side).

In this way, the second to fourth divided cover bodies 23b to 23d are folded and reduced in conjunction with the first divided cover body 23a, so that the cover 23 is opened to the first divided cover body 23a.
It is stored in the pit 44 in a folded state with the divided cover body 23a being the outermost side and the fourth divided cover body 23d being the innermost side.

Further, when the cover 23 is closed, the first divided cover body 23a is rotated in the closing direction (to the control section 8 side), as shown by the solid line in FIG.
The first engaging claw 31 of a is the engaged claw 30 of the second split cover body 23b.
The second split cover body 23b also engages with the
Rotate in the closing direction around 28. Then, similarly to the second divided cover body 23b, each of the third divided cover body 23c and the fourth divided cover body 23d has each first engaging pawl 31 with each engaged pawl.
By engaging with 30, it rotates in the closing direction about the horizontal axis 28. In this way, the second to fourth divided cover bodies 23b to 23d are expanded in association with the first divided cover body 23a, so that the cover 23 is reliably closed as shown in FIG.

Next, a fourth embodiment of the present invention will be described with reference to FIG. That is, at the end of each of the divided cover bodies 23b to 23d in the opening direction, the adjacent divided cover bodies 23a to 23a to 23d
The second engaging claw 32 that engages with the first engaging claw 31 of 23c is formed by bending outward.

According to this, when the cover 23 is opened,
By rotating the first split cover body 23a in the opening direction (pit 44 side), the first engaging claws 31 of the first split cover body 23a are moved to the second split cover as shown by the phantom line in FIG. Body 23b
After being separated from the engaged claw 30 of the second split cover body 23b, the second split cover body 23b is forcibly rotated in the opening direction (pit 44 side) by engaging with the second engagement claw 32 of the second split cover body 23b. . Similarly, the first engaging claws 31 of the second divided cover body 23b are connected to the third divided cover body 23c.
Engaging with the second engaging claw 32 of forcibly rotating the third divided cover body 23c in the opening direction (pit 44 side), and further, the first engaging claw 31 of the third divided cover body 23c 4th division cover body 23d
By engaging with the second engaging claw 32, the fourth split cover body 23d is forcibly rotated in the opening direction (pit 44 side).

In this manner, the second to fourth divided cover members 23b to 23d are folded and reduced in conjunction with the first divided cover member 23a, so that the cover 23 is opened to the first divided cover member 23a.
It is stored in the pit 44 in a folded state with the divided cover body 23a being the outermost side and the fourth divided cover body 23d being the innermost side.

In closing the cover 23, the third
Similar to the embodiment, by engaging the first engaging claw 31 with the engaged claw 30, the second to fourth divided cover bodies 23b to 23d are expanded in association with the first divided cover body 23a, The cover 23 is securely closed.

In each of the above embodiments, the cover 23 is divided into four from the first divided cover body 23a to the fourth divided cover body 23d, but this is not limited to four divisions, and may be divided into a plurality of divisions. Further, in the above-mentioned embodiment, as shown in FIG. 5, the internal combustion engine test device 4 is arranged in a circle on the turntable 1, but this is arranged in series on a plurality of or a single fixed base. It may be installed.

[0037]

As described above, according to the present invention, the cover is formed into a multi-stage foldable type composed of a plurality of divided cover bodies and is rotatable about the inner edge of the side plate portion of each divided cover body as a fulcrum. In addition, it can be expanded and contracted freely in the rotating direction,
By providing the first engaging portion that engages with the adjacent divided cover body at the time of closing and the second engaging portion that engages with the adjacent divided cover body at the time of opening, in the predetermined divided cover body, When the cover is rotated to one side, the second engaging portions of the divided cover bodies are engaged with the adjacent divided cover bodies, so that the adjacent divided cover bodies are forcibly rotated to one side and the cover is rotated. It is surely folded and opened. At this time, since the cover is folded in multiple stages, the space occupied by the cover is reduced, and the installation space for the test apparatus can be made compact.

When the cover is rotated to the other side, the first engaging portions of the divided cover bodies engage with the adjacent divided cover bodies, so that the adjacent divided cover bodies are forcibly rotated to the other side. The cover that has been folded and folded is reliably expanded in the rotation direction and closed. As a result, the internal combustion engine support base is covered with the cover. As described above, by providing the first engaging portion and the second engaging portion on the divided cover body, it is possible to open and close the cover reliably.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a cover according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the internal combustion engine test device with the cover closed.

FIG. 3 is a view taken along the line AA in FIG.

FIG. 4 is a front view showing a rotation mechanism of a cover.

FIG. 5 is a plan view showing an arrangement form of an internal combustion engine test apparatus.

FIG. 6 is a perspective view of the internal combustion engine test device with the cover open.

FIG. 7 is a front view showing a configuration of an internal combustion engine support base.

FIG. 8 is a vertical sectional side view of a cover according to a second embodiment of the present invention.

FIG. 9 is a vertical sectional side view of a cover according to a third embodiment of the present invention.

10 is a BB arrow view in FIG. 9.

FIG. 11 is a perspective view of an internal combustion engine test device with a cover closed according to a third embodiment.

FIG. 12 is a front view showing a cover rotating mechanism according to a third embodiment.

FIG. 13 is a vertical sectional side view of a cover according to a fourth embodiment of the present invention.

FIG. 14 is a vertical sectional side view of an internal combustion engine test device with a cover device in a conventional example.

15 is a view on arrow CC in FIG. 14.

[Explanation of symbols]

 4 Internal-combustion-engine test device 7 Internal-combustion-engine support stand 8 Control part 23 Covers 23a-23d Divided cover body 24 Side plate part 25 Outer plate part 27 Support point 31 1st engaging claw (1st engaging part) 32 2nd engaging claw ( Second engaging part)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kazuhiko Miyoshi, 3-2-11 Minejima, Nishiyodogawa-ku, Osaka-shi, Osaka Prefecture Daifuku Co., Ltd. (72) Junzo Iwaoka 3--2, Mineshima, Nishiyodogawa-ku, Osaka-shi, Osaka No. 11 Daifuku Co., Ltd.

Claims (1)

[Claims] 1. A control unit is provided upright on the rear end side of an internal combustion engine support base, and is provided between a pair of fan-shaped side plate parts that can be positioned on both sides of the internal combustion engine support base, and the outer edges of these side plate parts. A cover consisting of a circular arc-shaped outer plate part is provided, and this cover is formed into a multi-stage foldable structure composed of a plurality of divided cover parts, and is rotatable about the inner edge of the side plate part of each divided cover part as a fulcrum. And a first engaging portion that is formed so as to be expandable and contractible in the rotation direction and that engages with the adjacent divided cover body when closed, and a second engaging portion that engages with the adjacent divided cover body when opened. Is provided in a predetermined divided cover body, and an internal combustion engine test device with a cover device is provided.