JPH07279938A - Device unit mounting device - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the device and its parts from scattering, show the bolt tightening procedure, and ensure the positioning. A mounting device for mounting by mounting mounting hardware to be fitted to a mounting portion 2 and a device unit 1 mounted on the mounting portion 2, the mounting hardware comprising a temporary fixing pin 12 and a temporary fixing pin restraining portion 7a into which the pin is inserted. Soft latch 7
And guide pin mechanisms 8 and 11 including guide pins 20 and 31 and guide pin restraining portions 8a and 11a into which the guide pins are inserted, bolts 23 and 27, and a nut with a collar having screw holes to be screwed with the bolts. It is composed of a nut mechanism 9 and 10 including parts 9a and 10a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting device for mounting a device unit to a mounting portion, and more particularly to a device unit in consideration of mounting in a weightless state.

[0002]

2. Description of the Related Art Plans for conducting various experiments on orbits in outer space are under way. The experimental device is transported to space as a device unit and attached to the structure in orbit. In addition, it is planned that experiments will be carried out so that the units that have reached the end of their life or that have failed can be replaced.

[0003]

[Problems to be Solved by the Invention] Since the outer space is weightless, bolts and nuts are easily scattered when bolting or the like. For this reason, a wire for preventing scattering is provided on bolts, nuts, and other devices. However, if each part or device is restrained by the wire as described above, workability is deteriorated and mounting time is increased. In addition, the device unit is attached to the mounting part using multiple bolts, but if a fluid connector etc. is provided in the device unit, the bolt tightening order such as tightening from the surrounding bolts may be fixed. Many. However, it was often difficult to know which bolt to tighten first by just looking at the device unit.

The present invention has been made in view of the above problems, and an object of the present invention is to prevent the attached device and its components from scattering. Moreover, it aims at being an attachment device which shows a tightening procedure.

[0005]

In order to achieve the above object, in a mounting device for a device unit, in which a mounting portion and a device unit mounted on the mounting portion are provided with interlocking mounting hardware, the mounting hardware is temporarily fixed. A temporary fixing mechanism including a pin and a temporary fixing pin restraint portion into which the temporary fixing pin is inserted; a guide pin mechanism including a guide pin and a guide pin restraint portion into which the guide pin is inserted;
A bolt mechanism and a nut mechanism including a flanged nut portion having a screw hole that is screwed with the bolt, and the temporary fixing pin, the guide pin, and the bolt are attached to the attaching portion, and each of the device units is attached. At the corresponding position of the temporary fixing pin restraint portion, the guide pin restraint portion,
The flanged nut portion is provided, and the temporary fixing mechanism has a temporary fixing pin having a head larger than the pin diameter and a pin hole having a diameter larger than the head, and a plurality of lateral holes intersecting the pin hole. The temporary nut fixing portion having a ball that is biased by a spring in the direction of the pin hole and slidably provided in the lateral hole.The flanged nut portion has a nut portion and a step fitted with the nut portion. And a nut, wherein the nut portion has a first cylinder axially having a screw hole to be screwed with the bolt,
The first cylinder is coaxially connected to the second cylinder having a diameter larger than that of the first cylinder, and the second cylinder is coaxially connected to the second cylinder.
It has a diameter smaller than that of the cylinder, the head has a third cylinder having the outer shape of a nut, and the stepped hole portion has a hole of a predetermined depth that is slidable with the second cylinder. A central part, a front part having a hole with a hole diameter slidable with the first cylinder and having a depth substantially the same as the length of the first cylinder, and a hole diameter smaller than that of the third cylinder and smaller than that of the second cylinder. It has a rear part.

Further, in the guide pin mechanism, the guide pin and the guide pin restraining portion are tightly fitted to each other, and the length of the guide pin is longer than the thickness of the guide pin restraining portion, and the guide pin and the guide pin restraining portion. The second guide pin mechanism is such that the portions are loosely fitted and the length of the guide pin and the thickness of the guide pin restraining portion are substantially the same.

Further, the nut mechanism comprises a first nut mechanism and a second nut mechanism, and the length of the nut portion of the first nut mechanism is longer than the thickness of the stepped hole portion of the first nut mechanism.
The length of the nut portion of the second nut mechanism is substantially the same as the thickness of the stepped hole portion of the second nut mechanism.

[0008]

[Function] A temporary fixing pin, a guide pin, and a bolt are attached to the mounting portion of the structure, and a temporary fixing pin restraint portion, a guide pin restraining portion, and a collar nut are attached to the device unit at positions corresponding to them. When the device unit is pressed against the mounting part with the fittings to be fitted together, the guide pin fits into the guide pin restraining part,
Mutual positions are determined, and the temporary fixing pin is restrained by the temporary fixing pin restraining portion to prevent the device unit from scattering from the mounting portion. When the tip of the bolt comes into contact with the flanged nut, the flanged nut moves in the axial direction, and the device unit moves closer to the mounting part by that amount, so the guide pin fits deeper into the guide pin restraint and positioning is ensured. Becomes Next, by tightening the flanged nut, the attachment of the device unit to the attachment portion is completed.

In the temporary fixing mechanism, when the temporary fixing pin enters the pin hole, and the head of the temporary fixing pin pushes the ball provided in the lateral hole intersecting with the pin hole, the ball moves so as to enter the lateral hole and temporarily fixes. The pin head is passed through and the spring is again biased to narrow the pin hole so that only the shaft of the temporary fixing pin can pass. As a result, the temporary fixing pin head cannot easily pass the ball position again, so that the device unit can be prevented from scattering from the mounting portion. Since the force required for the head of the temporary fixing pin to pass the ball position is determined by the biasing force of the spring, it is set to the biasing force required to prevent scattering.

In the flanged nut portion, a second cylinder serving as a collar is connected to a first cylinder having a screw hole for screwing with a bolt in an axial direction, and a third cylinder having a head having an outer shape of a nut is connected to the second cylinder. The nut part made of a cylinder is larger than the third cylinder diameter and the central part having a hole with a predetermined depth and a front part that slides on the first cylinder and a second cylinder, and a second cylinder diameter. It fits into the stepped hole that consists of the rear part of the small hole diameter. Since the length of the hole in the central portion is a predetermined length, when the tip of the bolt comes into contact with the screw hole of the first cylinder, the nut portion moves, and the device unit may move closer to the mounting portion. it can.

Since the first guide pin mechanism has a long guide pin, the first guide pin mechanism first enters the guide pin restraining portion for accurate positioning.
Next, the guide pin of the second guide pin mechanism enters the guide pin restraining portion, but since it is loosely fitted, the fitting operation of the first guide pin mechanism is not hindered even if the pin hole is slightly displaced. The second guide pin mechanism acts as a detent for the device unit. By changing the length in this way, the order of attachment can be determined, and by changing the tightness of fitting, the roles can be divided and shared.

Since the length of the nut portion of the first nut mechanism is longer than the length of the nut portion of the second nut mechanism, when tightening the nut, tighten from this longer side and then tighten the nut of the second nut mechanism. Can be This makes it possible to define the tightening order of the nuts with respect to the bolts, for example, by disposing the first nut mechanism at a position such as a connector that requires accurate positioning, and tightening first to fix the position accurately. .

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a device unit that constitutes an experimental device in outer space and its mounting portion. FIG. 2 shows a plan view of the device unit. FIG. 3 is a cross-sectional view showing a pre-alloyed product that connects the device unit and the mounting portion. In FIG. 1, (a) shows a state in which the device unit 1 is attached close to the attachment portion 2 of the structure 2 a, and (b) shows a state in which the device unit 1 is attached to the attachment portion 2. The device unit 1 is equipped with a device such as a tank,
The female side is attached, and the male side is attached to the attaching portion 2. The mounting portion 2 is also equipped with a power supply for the device unit 1, a connector for fluid, and the like. In addition,
The attachment of the device unit 1 to the attachment portion 2 is performed by an operator directly or using a manipulator.

FIG. 2 shows an example of an apparatus unit in which a tank and a fluid connector are mounted. The substrate 4 of the apparatus unit 1 is provided with the fluid connector 5 and the tank 6, and the alloy preparation 3 is provided near the four corners. Temporary fixing pin restraint portions 7a on the female side of the soft latch (temporary fastening mechanism) 7 for preventing scattering are provided at two corners, and a first guide pin restraining portion 8 for accurately positioning the device unit 1 with respect to the mounting portion 2.
a is provided in the vicinity of the middle portion of the two fluid connectors 5. The first flanged nut portion 9a having the long nut portion 25 is provided in the vicinity of the two fluid connectors 5, and the short second flanged nut portion 10a of the nut portion 29 is the first flanged nut portion 9a.
It is provided in the other three corners where no is provided. The second guide pin restraint portion 11a, which is loosely fitted and constitutes a detent for the device unit 1, is provided in the vicinity of a corner farthest from the first guide pin restraint portion 8a.

FIG. 3 shows details of the mounting hardware. (A) is a soft latch 7, which comprises a temporary fixing pin 12 and a temporary fixing pin restraining portion 7a into which the temporary fixing pin 12 is inserted. The temporary fixing pin 12 is fixed to a mounting portion 2 by a mounting plate 13 and has a pin diameter. It has a pin head 14 with a larger diameter. The temporary fixing pin restraining portion 7a includes a pin hole 15 having a diameter slightly larger than the diameter of the pin head 14 into which the temporary fixing pin 12 is inserted, and a plurality of pin holes 15 (in the present embodiment, 4 which are orthogonal to the pin hole 15 and its inlet). Book) horizontal holes 16 and each horizontal hole 16 has a pin hole 15 with a spring 17.
A ball 18 is provided which is biased to the side and slidable in the lateral hole 16. Part of each ball 18 protrudes into the pin hole 15 and presses each other to press the temporary fixing pin 12 and the pin head 14 inserted into the pin hole 15. Ball 1 of spring 17
An adjusting screw 19 for adjusting the urging force of the spring 17 is provided on the side opposite to the position 8.

(B) is a first guide pin mechanism 8 comprising a first guide pin 20 and a first guide pin restraining portion 8a which fits with the first guide pin 20.
Reference numeral 0 denotes a mounting plate 21 fixed to the mounting portion 2. The first guide pin restraining portion 8a has a first guide pin hole 22 that closely fits with the first guide pin 20.

(C) is a first nut mechanism 9, which comprises a first bolt 23 and a first collared nut portion 9a. The first bolt 23 is fixed to the mounting portion 2 by a mounting plate 24 and has a first collar. The nut portion 9a includes a first nut portion 25 and a first stepped hole portion 26 that fits into the first nut portion 25. First nut part 2
Reference numeral 5 denotes a first cylinder 25a having a screw hole to be screwed with the first bolt 23, and a second cylinder 25b connected coaxially with the first cylinder 25a and having a diameter larger than the first cylinder diameter to form a collar.
And is coaxially connected to the second cylinder 25b, has a diameter smaller than the second cylinder diameter, and the head portion 25d is composed of a third cylinder 25c having an outer shape of a nut. The first stepped hole portion 26 is the second
A central portion 26b having a hole diameter slidable with the cylinder 25b and having a hole depth that is about twice the length of the second cylinder 25b, and a hole diameter slidable with the first cylinder 25a. A front portion 26a having a hole having a depth substantially the same as the length of the third cylinder 25c.
Of the second cylinder 25b and smaller than the diameter of the second cylinder 25b. The first nut portion 25 is fitted in the first stepped hole portion 26, and slides in the axial direction by the difference between the length of the second cylinder 25b and the hole depth of the central portion 26b (about the length of the second cylinder 25b). To do.

(D) is a second nut mechanism 10 comprising a second bolt 27 and a second flanged nut portion 10a. The structure is almost the same as the first nut mechanism 9, but the dimensions are different. The second bolt 27 is fixed to the mounting portion 2 with a mounting plate 28. The second flanged nut portion 10a includes the second nut portion 2
9 and the second stepped hole portion 30. The second nut portion 29 is
Compared to the first nut portion 25, the first cylinder 29a is shorter, the second cylinder 29b is the same, the third cylinder 29c is shorter, and the depth is the same as the depth of the second stepped hole portion 30 as a whole. In addition, the second stepped hole portion 30 corresponds to the second nut portion 29 and corresponds to the front portion 30.
The depth of a is the same as the length of the first cylinder 29a, the depth of the central portion 30b is deep, and the sliding range of the second nut portion 29 is larger than that of the first nut portion 25. In addition, the hole diameter of the rear portion 30c becomes large, and the second nut portion 29 becomes the second
The nut-shaped third cylindrical head portion 29d can be tightened with a spanner or the like while it is inside the stepped hole portion 30.

(E) is a second guide pin mechanism 11 for the second guide pin mechanism 11.
The guide pin 31 and the second guide pin restraining portion 11a are formed, and the second guide pin 31 is fixed to the mounting portion 2 by a mounting plate 32. The 2nd guide pin restraint part 11a has the 2nd guide pin hole 33 with which the 2nd guide pin is loosely fitted. The length of the second guide pin 31 is shorter than that of the first guide pin 20, and is the same as the thickness of the second guide pin restraining portion 11a.

Next, the mounting operation will be described. 3 to 6
[Fig. 3] is an explanatory diagram of each mounting state. FIG. 3 shows a state in which the mounting portion 2 and the device unit 1 are first in contact with each other, and shows a state in which the tip of the first guide pin 20 is inserted into the first guide pin hole 22. As the insertion progresses in FIG. 4, in the first nut mechanism 9 as shown in (c), the tip of the first bolt 23 comes into contact with the screw hole of the first cylinder 25a, pushes up the first nut portion 25, and 25b is pushed up to the full stroke and is in contact with the rear portion 26c. At this time, in the soft latch 7 as shown in (a), the temporary fixing pin 12 is inserted into the pin hole 15, and the pin head 14 pushes the ball 18 away to cause the ball 18 to move.
It is inserted into the upper part and is in a restrained state, and the device unit 1 is prevented from scattering from the mounting portion 2. This restraint is spring 1
Since it is softly pressed by 7, the positioning of the first guide pin mechanism 8 and the second guide pin mechanism 11 is not hindered.

Further, as shown in (b), the first guide pin 20 is inserted into the first guide pin hole 22 more than half and the fitting positions are correctly aligned. In (d), when the second bolt 27 hits the screw hole of the first cylinder 29a, the second nut portion 2
Nine moves have not occurred. As shown in (e), the second guide pin 31 enters the second guide pin hole 33 about half way and prevents the rotation of the device unit 1.

FIG. 5 shows a state in which the nut tightening of the first nut mechanism 9 shown in FIG. 4 (c) is started and finished from the state of FIG. (A) to (c) and (e) are in a state where the mounting is completed. In (d), the second stepped hole portion 30 is pushed down by tightening the nut of the first nut mechanism 9. On the other hand, since the second nut portion 29 is in contact with the second bolt 27, the second nut portion 29 maintains the position as it is, and as a result, the second nut portion 29
The nut portion 29 is in a state of protruding from the second stepped hole portion 30. Thereby, the tightening of the second bolt 27 becomes clear to the operator.

FIG. 6 shows a state where the second bolt 27 shown in FIG. 5D is tightened from the state shown in FIG. 5 and the attaching operation is completed. The second nut portion 29 is lowered by tightening, and the head portion 29d is flush with the stepped hole portion 30.

To summarize the above-described mounting operation, first the first guide pin 20 enters the first guide pin hole 22, and then the second guide pin 31 also enters the second guide pin hole 33. Positioning of the fluid connector 5 and rotation prevention of the device unit 1 are performed, where the mating position is important. Further, the pin head 14 of the soft latch 7 passes through the position of the ball 18 and exerts a restraining function to prevent the device unit 1 from scattering from the mounting portion 2. Next, as compared with the second nut mechanism 10, the first nut portion 2 of the first nut mechanism 9, which has a protruding head,
The area around the fluid connector 5 is securely fixed by tightening 5. The second nut portion 2 of the second nut mechanism 10 whose head projects by tightening the first nut portion 25
Tightening 9 completes the attachment of the device unit 1 to the attachment portion 2.

[0025]

As is apparent from the above description, the present invention has the following effects. A temporary fixing mechanism (soft latch) is provided to prevent the device unit from scattering from the mounting portion. Since the soft latch is softly restrained by the spring so that the pin head does not come off,
Does not hinder the positioning of the guide pin mechanism. The nut mechanism having the flanged nut portion can prevent the nut from scattering. The nut tightening procedure can be shown by using a nut mechanism in which the head height of the nut is changed. With a long guide pin mechanism for tight fitting,
Positioning and rotation prevention can be reliably performed by providing a short and loosely fitting member. By integrating the above functions, the mounting work in a weightless state can be performed easily and surely. It can also be applied to the construction of skyscrapers and towers on the ground.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a state in which an apparatus unit is attached to an attachment portion, (a) shows before attachment, and (b) shows after attachment.

FIG. 2 is a diagram showing an example of a plan view of an apparatus unit.

FIG. 3 is a detailed view of a mounting hardware, where (a) is a soft latch, (b) is a first guide pin mechanism, (c) is a first nut mechanism, (d) is a second nut mechanism, and (e). Shows a second guide pin mechanism.

FIG. 4 is a view showing a state before mounting of the mounting hardware, in which the restraint by the soft latch is started, the first nut portion of the first nut mechanism is pushed up to the full stroke, and the state before starting the tightening of the nut is shown.

FIG. 5 shows a state in which the mounting hardware is being mounted, and shows a state immediately before starting tightening of the nut by tightening the nut of the first nut mechanism and pushing up the second nut of the second nut mechanism by the full stroke. .

FIG. 6 is a view showing a state in which mounting of the mounting hardware is completed.

[Explanation of symbols]

 1 Device Unit 2 Mounting Part 2a Structure 3 Mounting Hardware 4 Board 5 Fluid Connector 6 Tank 7 Soft Latch (Temporary Fixing Mechanism) 7a Temporary Fixing Pin Restraining Section 8 First Guide Pin Mechanism 8a First Guide Pin Resting Section 9 First Nut Mechanism 9a 1st flanged nut part 10 2nd nut mechanism 10a 2nd flanged nut part 11 2nd guide pin mechanism 11a 2nd guide pin restraint part 12 Temporary fixing pin 13,21,24,28,32 Mounting plate 14 pin head Part 15 Pin hole 16 Side hole 17 Spring 18 Ball 19 Adjusting screw 20 First guide pin 22 First guide pin hole 23 First bolt 25 First nut part 25a, 29a First cylinder 25b, 29b Second cylinder 25c, 29c Third Cylinder 25d, 29d Head 26 First stepped hole 26a, 30a Front 26b, 30b Center 26c, 30c Rear 27 second bolt 29 second nuts 30 second stepped bore portion 31 and the second guide pin 33 second guide pin holes

Claims (3)

[Claims] 1. A mounting device for a device unit, comprising a mounting portion and a device unit mounted on the mounting portion, which are provided with interlocking mounting hardware, wherein the mounting hardware comprises a temporary fixing pin and a temporary fixing pin into which the temporary fixing pin is inserted. Temporary fastening mechanism consisting of a stop pin restraint, a guide pin, a guide pin mechanism consisting of a guide pin restraint into which this guide pin is inserted, a bolt, and a collar with a screw hole that engages with this bolt A nut mechanism including a nut portion, wherein the temporary fixing pin, the guide pin, and the bolt are attached to the mounting portion, and the temporary fixing pin restraint portion and the guide pin are provided at respective corresponding positions of the device unit. A restraint portion and the flanged nut portion are provided, and the temporary fixing mechanism includes a temporary fixing pin having a head portion larger than a pin diameter, and It has a pin hole with a certain diameter, and a temporary fixing pin restraint part with a ball that is slidably installed in the horizontal hole by being biased by springs in the direction of the pin hole into a plurality of horizontal holes that intersect the pin hole. The flanged nut portion includes a nut portion and a stepped hole portion that is fitted with the nut portion, and the nut portion includes a first cylinder that has a screw hole that is screwed with the bolt in the axial direction, The second cylinder is coaxially connected to the first cylinder and has a diameter larger than that of the first cylinder, and the second cylinder is coaxially connected to have a diameter smaller than that of the second cylinder. The stepped hole part has a central part having a hole with a predetermined depth and a slidable hole diameter with the second cylinder, and a hole diameter slidable with the first cylinder. It has a front part having a hole having a depth almost the same as the length of the first cylinder, and a hole diameter larger than the diameter of the third cylinder and smaller than that of the second cylinder. A device unit mounting device comprising a rear portion. 2. The guide pin mechanism according to claim 1, wherein the guide pin and the guide pin restraint portion are closely fitted to each other, and the length of the guide pin is longer than the thickness of the guide pin restraint portion.
The apparatus according to claim 1, wherein the guide pin and the guide pin restraining portion are loosely fitted to each other, and the guide pin has a length and a thickness of the guide pin restraining portion which are substantially the same. . 3. The nut mechanism comprises a first nut mechanism and a second nut mechanism, the length of the nut portion of the first nut mechanism being longer than the thickness of the stepped hole portion of the first nut mechanism,
The length of the nut portion of the nut mechanism is substantially the same as the thickness of the stepped hole portion of the second nut mechanism.
Alternatively, the device unit mounting device according to item 2.