JP2006083917A - Joint releasing device for parts - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint releasing device for parts separating parts at arbitrary timing increasing separation resistance force when the parts are joined and surely separating the parts. <P>SOLUTION: A through hole is provided on an inner tube wall of a housing 11 and a ball 14 is arranged in the through hole. The parts inserted in the inner tube is joined to a housing 11 when the ball 14 is fitted in the fitting groove. When a heater 16 is energized and a melting member 15 melts, a movable member 12 moves to a position allowing movement of the ball 14 to an outer circumference direction by reaction force of a spring 13 and a release condition of the parts 20 is materialized. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an apparatus for connecting and releasing parts, and more particularly to a part connection / release apparatus capable of releasing the connection of parts at an arbitrary timing.

  In the field of using mechanical structures or mechanisms such as automobiles and aerospace, there are cases where parts are connected or fastened, and these parts are desired to be released according to the use situation. For example, in the aerospace field, there are cases where a folded solar cell panel is deployed after an artificial satellite is injected into space. In such a case, the timing for deploying the solar cell panel needs to be appropriate, and a component release mechanism that releases the coupled state by some signal control is required. Similarly, in the automobile industry, there is a demand for a component release mechanism that releases a coupled state at an appropriate timing by some kind of signal control.

One of the part release mechanisms that can satisfy the above-described requirements is a fastening / separating mechanism described in Patent Document 1. The fastening / separation mechanism described in Patent Document 1 is intended to reduce the impact at the time of separation between the spacecraft and the separated body and to perform reliable separation, and has a separated body and a separated body as its configuration. The object to be separated has a separation bolt having a head and a male screw part, a spring for applying a stress for pulling the separation bolt (together with the female threaded body) from the separation body, a storage case for accommodating them, and a connecting plate. Includes a female screw body screwed to the male thread portion of the separation bolt, an intermediate body for fixing the female screw body, a heater and a mesh cloth for melting the intermediate body, a nut housing for accommodating them, and a mounting plate. In addition, an example in which the interposition body and the internal thread body are formed as one common member is also shown. In this case, it is disclosed that a helicate is used to improve the screwability with the separation bolt. Moreover, paraffin and solder are illustrated as the material of the inclusion. According to such a fastening / separating mechanism, parts are separated by blasting the connecting part with conventional explosives, etc., but separation is realized by thermally melting the inclusions. There is an effect that can be reduced. Further, since the separation bolt is pulled out by the spring, there is an effect that reliable separation can be realized.
Japanese Patent Laid-Open No. 7-27119

  In the fastening / separating mechanism described in Patent Document 1, the connection between the separated body and the member to be separated is realized by screwing a separation bolt and a female screw body, which are part of the separated body, and the female screw body is an intervening body. To be attached to the separator. The fixation between the female screw body and the interposition body is realized by fitting the notch formed in the interposition body into the groove formed in the female screw body. That is, the separation body and the separated body are fixed by fitting the notch of the interposed body and the groove of the female screw body, and clearly from FIG. 1 of Patent Document 1, the separated body is separated from the separated body. The direction is a direction in which a shear stress is generated in the notch of the inclusion. In order to resist the separation of the object to be separated from the separated body, the inclusions must be sufficiently resistant to this shear stress. In addition, in the structure shown by FIG. 2 of patent document 1, although the example which comprises a female screw body itself with a hot-melt material is also shown, in this case, it is on the thread of the female screw body which is a hot-melt body. The shear stress acts, and the female screw body that is a thermal melt is also required to have a characteristic that can withstand such a shear stress.

  However, the intermediate body or internal thread body (in the case of the configuration shown in FIG. 2), which is a hot melt, must be a material generally lacking in shear resistance because the material is a hot melt. A hot melt has a low melting point, and the material hardness is generally low as a characteristic of such a low melting point material. There is no clear proportional relationship between hardness and shear resistance, but generally there is a correlation that the higher the hardness, the higher the shear resistance, and the lower the hardness, the lower the shear resistance. Therefore, the separation resistance between the separated object and the separated body is limited by the shear resistance of the thermal melt that achieves the fastening, and the separation resistance is not lowered due to the low shear resistance of the thermal melt. There is a problem not getting.

  Further, in the fastening / separating mechanism described in Patent Document 1, a space for separation is secured by absorbing the melted material into a mesh cloth after melting the intermediate body or internal thread body that is a thermal melt. To do. However, the absorption of the molten material into the mesh cloth utilizes osmotic pressure and does not necessarily penetrate into the mesh cloth. In order to ensure separation between the separated body and the separated object, it is necessary to positively secure a space for separation.

  An object of the present invention is to provide a coupling / releasing device capable of separating parts at an arbitrary timing and having an increased separation resistance when the components are coupled. Another object of the present invention is to provide a coupling / releasing device that can reliably separate parts in such a coupling / releasing device.

  The invention disclosed in this specification is as follows. That is, the meltable member that can be melted, the melting mechanism that melts the meltable member, and the meltable member that is disposed in contact with the meltable member and the meltable member is melted. A movable member movable in a direction, an elastic member that applies stress to the movable member in the direction, and a separable component, and the movable member in the direction caused by melting of the meltable member And a component coupling / releasing mechanism for releasing the separable component in the coupled state by movement.

  According to such a component coupling / releasing device, the separable component coupling is realized by a component coupling / releasing mechanism that does not include a meltable member. The release of the separable part is realized by moving the movable member in the direction of the position where the meltable member exists due to the melting of the meltable member. That is, the meltable material does not receive a shearing stress for maintaining the bonding of the parts, but acts to crush the material itself. Usually, the force for crushing the material is larger than the force for shearing the material, and therefore, a large separation resistance can be realized in the coupling release mechanism of this part.

  Moreover, in the component joint release mechanism of the present invention, the movable member is forcibly moved by the elastic member, and the coupled state is changed to the separated state. For this reason, it becomes possible to secure a positive space for separation.

  Specifically, the following configuration can be presented. That is, the separable component includes a coupling portion having a fitting groove or a fitting hole into which a part of a ball is fitted on a side peripheral surface thereof, and the component coupling release mechanism includes an inner cylinder and an outer cylinder. A double concentric cylindrical housing formed concentrically, a ball disposed in a through hole formed in the peripheral wall of the inner cylinder, a movable member that slides between the inner cylinder and the outer cylinder, The coupling portion of the separable component is inserted into the inner cylinder, and the ball is pressed toward the center of the inner cylinder by the movable member being in the first slide position. A part of the ball is fitted into the fitting groove or the fitting hole by the pressing in the central direction, whereby the coupling part of the separable component is coupled to the housing, and the movable member is Because it is in the 2 slide position The ball is allowed to move in the outer circumferential direction of the inner cylinder, and the movement of the ball in the outer circumferential direction releases the fitting of the ball from the fitting groove or the fitting hole, thereby The coupling part of the parts is released from the housing, the elastic member applies a stress that causes the movable member to be in the second slide position, and the fusible member resists the stress to move the movable member to the first. It is possible to provide a coupling / releasing device for parts that function as a spacer that is maintained at one slide position. In such a coupling release device, the coupling is realized by fitting a part of the ball into the fitting groove or fitting hole on the component side peripheral surface. Since the ball and the component can be made of a material having sufficient shear resistance, the separation resistance of the component can be sufficiently increased. Further, the movable member is slid to the second slide position by the stress from the elastic member to positively realize the component release state. As a result, parts can be reliably separated.

  The separable component has a bolt portion in which a thread is screwed, and the component coupling / release mechanism has an inner diameter larger than an outer diameter of the bolt portion in the released state. A helicate for screwing the bolt portion in a state of being screwed to a portion, and a helicate holder divided into a plurality of portions that are screwed to the outer periphery of the helicate in a state where the helicate is screwed to the bolt portion. The helicate functions as the elastic member, the meltable member is screwed into the bolt portion against the elastic stress of the helicate, and the plurality of helicate holders are screwed on the outer periphery of the helicate. It can be set as the coupling | bonding release apparatus which maintains the screwing state to match. In such a coupling release device, the coupling is realized by screwing the helicate into the bolt part and further screwing the resert holder into the helicate. Since a material having sufficient shear resistance can be applied to the helisert and the bolt part, the separation resistance of the parts can be sufficiently increased. Further, when the meltable member is melted and the constraint of the helicate and the helicate holder is released, the inner diameter is expanded by the elastic force of the helicate. As a result, a sufficient release space is secured in the threaded portion, and the parts can be reliably released.

  The meltable member can be a heat-meltable low-melting-point material, and examples of the melting mechanism include heater means and ultrasonic wave generation means. An example of the low melting point material is tin.

  According to the first aspect of the present invention, in the component coupling / releasing device capable of separating the components at an arbitrary timing, the separable components can be coupled by the component coupling / releasing mechanism that does not include the fusible member. For this reason, a shear stress for maintaining the bonding of the components does not act on the meltable material, and it becomes possible to increase the separation resistance in a state where the components are bonded. In addition, according to the first aspect of the present invention, since the movable member is forcibly moved by the elastic member to bring the coupled state into the separated state, it is possible to secure a positive space for separation. The separation of the parts in such a coupling release device can be ensured.

  According to the invention described in claim 2, the effect of the invention described in claim 1 can be realized by the configuration described in claim 2. That is, the coupling is realized by fitting a part of the ball into the fitting groove or the fitting hole on the side peripheral surface of the separable component. Since the ball and the component can be made of a material having sufficient shear resistance, the separation resistance of the component can be sufficiently increased. Further, the movable member is slid to the second slide position by the stress from the elastic member to positively realize the component release state. As a result, parts can be reliably separated.

  According to the invention described in claim 3, the effect of the invention described in claim 1 can be realized by the configuration described in claim 3. That is, the coupling is realized by screwing the helisert to the bolt part of the separable part and further screwing the resert holder to the helisert. Since a material having sufficient shear resistance can be applied to the helisert and the bolt part, the separation resistance of the parts can be sufficiently increased. Further, when the meltable member is melted and the constraint of the helicate and the helicate holder is released, the inner diameter is expanded by the elastic force of the helicate. As a result, a sufficient release space is secured in the threaded portion, and the parts can be reliably released.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(Embodiment 1)
1 and 2 are cross-sectional views showing an example of a component coupling / release device according to an embodiment of the present invention. FIG. 1 shows a state where a separable component is mounted on the component coupling / release device of the present embodiment, and FIG. 2 shows a state where a separable component is extracted from the component coupling / release device of the present embodiment. Show. 1 and 2, (a) is a longitudinal sectional view, and (b) is a sectional view taken along line BB in (a).

  The component coupling / releasing device 10 according to the first embodiment includes a housing 11, a movable member 12, a spring 13, a ball 14, a meltable member 15, a heater 16, and a cap 17. A separable component 20 is inserted into the component coupling / release device 10 from the upper part of the figure, and the component 20 is coupled or released.

  FIG. 3 is a cross-sectional view showing the housing 11. The housing 11 is a component of the component coupling / release device 10 in which the outer cylinder 11a and the inner cylinder 11b are formed in a double concentric cylinder shape. An upper surface plate 11c is formed on the upper surface between the outer cylinder 11a and the inner cylinder 11b, and functions as a stopper for the spring 13 described in detail later. The upper surface of the inner cylinder 11b is open, and the component 20 is inserted from the direction of the release surface. The lower surface of the outer cylinder 11 a is open and sealed with a cap 17. A lower surface plate 11d is formed on the lower surface of the inner cylinder 11b, but this may not be particularly required.

  A through hole 11e is formed on the peripheral surface of the inner cylinder 11b, and a ball 14 is disposed in the through hole 11e. The diameter of the through hole 11e is larger than the diameter of the ball 14, and the ball 14 is configured to be movable in the thickness direction of the inner cylinder 11b. The diameter of the ball 14 is larger than the thickness of the inner cylinder 11b, and when the ball 14 is disposed in the through hole 11e, a part of the ball 14 protrudes from the thickness of the through hole 11e. Note that the through-hole 11e may be formed in a tapered shape so that the ball 14 does not fall inside the inner cylinder 11b when the ball 14 is set in the through-hole 11e.

  The housing 11 includes the outer cylinder 11a, the inner cylinder 11b, the upper surface plate 11c, and the lower surface plate 11d as described above (however, the lower surface plate 11d may not be provided), but these may be integrally formed. What was comprised by another part may be adhere | attached by welding etc. Examples of the material of the housing 11 include stainless steel and steel that are not easily melted or melted by heat.

  FIG. 4 is a cross-sectional view showing the movable member 12. The movable member 12 is a cylindrical part that slides between the outer cylinder 11a and the inner cylinder 11b. The movable member 12 is divided into an upper part 12a, an intermediate part 12b, and a lower part 12c in the vertical direction of the cylinder. The thickness of the movable member 12 at the lower portion 12c substantially matches the interval between the outer cylinder 11a and the inner cylinder 11b, and ensures that the movable member 12 slides in parallel between the outer cylinder 11a and the inner cylinder 11b.

  In the upper part 12a, the thickness of the movable member 12 is formed to be thin so that the inner diameter thereof is increased. When the movable member 12 is located at a position where the ball 14 abuts on the inner peripheral surface of the upper portion 12a (second slide position), the ball 14 has a margin of movement in the outer peripheral direction. On the other hand, the intermediate portion 12b of the movable member 12 is formed to be thicker than the upper portion 12a, and the movable member 12 is located at a position where the ball 14 abuts against the inner peripheral surface of the intermediate portion 12b (first slide position). In this case, the ball 14 is pressed in the inner circumferential direction. FIG. 1 shows a state where the movable member 12 is at the first slide position, and FIG. 2 shows a state where the movable member 12 is at the second slide position.

  In addition, the outer peripheral surface side of the movable member 12 has a hook portion 12d for receiving the spring 13, and the movable member 12 is always subjected to stress by the elastic stress of the spring 13 so that the movable member 12 slides to the second slide position. Examples of the material of the movable member 12 include stainless steel and steel that are not easily melted or melted by heat.

  The spring 13 is an example of an elastic member that is arranged on the outer peripheral surface side of the movable member 12 and configured to always apply stress so that the movable member 12 is in the second slide position. An example of the spring 13 is a string spring. In addition, although the string wound spring is illustrated here as an example of the spring 13, the spring 13 does not need to be a string wound spring as long as the movable member 12 applies stress so as to be in the second slide position. Examples of the material of the spring 13 include phosphor bronze that is not easily melted or melted by heat and has a large elastic coefficient.

  As described above, the ball 14 is a component of the component coupling / releasing device 10 disposed in the through hole 11e. As described above, in a state where the movable member 12 is in the first slide position, the ball 14 is pressed to the inner peripheral side of the inner cylinder 11b, and a part of the ball 14 is inserted into a fitting hole or fitting groove of a component described later. Fit. This couples the component 20 to the housing 11. Examples of the material of the ball 14 include stainless steel and steel that are not easily melted or melted by heat.

  The meltable member 15 is a member that maintains the movable member 12 at the first slide position against the stress received by the movable member 12 from the spring 13, and is a member that melts itself by application of thermal energy. Maintenance of the movable member 12 at the first slide position is realized by inserting the fusible member 15 into a space between the movable member 12 and the cap 17 when the movable member 12 is at the first slide position. Due to the melting of the meltable member 15, the movable member 12 cannot resist the stress from the spring 13, and slides to the second slide position. The meltable member 15 is a member before melting, and is shown in FIG. 1, but in FIG. 2, the meltable member 15 is already melted and is not displayed. In FIG. 2, the meltable material 15 ′ after melting is displayed. Examples of the material of the fusible member 15 include tin and solder that are easily melted by heat.

  The heater 16 is one of the melting mechanisms of the meltable member 15 disposed at a position where heat conduction to the meltable member 15 is possible. Here, the heater 16 is illustrated as one of the melting mechanisms for melting the meltable member 15. However, the heater 16 is not necessarily a heat generating device. For example, a material that melts the meltable member 15 with ultrasonic waves (for example, If it is composed of solder, an ultrasonic generator may be used.

  The cap 17 is a component that seals the lower surface opening of the outer cylinder 11 a of the housing 11. When the cap 17 seals the lower surface of the housing 11, the meltable member 15 can resist the stress from the spring 13 by receiving a drag force from the cap. Examples of the material of the cap 17 include stainless steel and steel that are not easily melted or melted by heat.

  The component 20 is a cylindrical component that can be inserted into the inner cylinder 11 b of the housing 11, and is a binding component that is coupled to or released from the component coupling / release device 10. The upper surface of the component 20 is tapped so that the bolt 21 can be screwed. Other parts can be bound by the bolt 21. A fitting groove 20 a is formed on the outer peripheral surface of the component 20. When a part of the ball 14 is fitted in the fitting groove 20a, the component 20 is coupled to the component coupling / releasing device 10, and the ball 14 is detached from the fitting groove 20a or easily detached. Is released from the component coupling release device 10 (released state). In addition, although the fitting groove 20a is illustrated here, it does not need to be a groove and may be a hole.

  The operation of the component coupling / releasing device 10 configured as described above will be described below. First, in order to realize a state in which the components 20 are coupled, assembly is performed as follows. First, the component 20 is inserted into the inner cylinder 11 b of the housing 11 so that the fitting groove 20 a of the component 20 contacts the through hole 11 e of the housing 11. Then, the ball 14 is set in the through hole 11e, and the spring 13 and the movable member 12 are set between the outer cylinder 11a and the inner cylinder 11b of the housing 11. Next, in this state, since the movable member 12 is in the second slide position where the ball 14 is not pressed toward the center of the inner cylinder 11b, the movable member 12 is slid to the first slide position and the meltable member 15 is set. Then, the cap 17 is fitted. In this state, the ball 14 is pressed toward the center of the inner cylinder 11b, and a part of the ball 14 is fitted into the fitting groove 20a, so that the component 20 is coupled to the component coupling / release device 10. In addition, the heater 16 can be arrange | positioned as shown in FIG. 1 by setting to the cap 17 previously, or setting after setting the meltable member 15. FIG.

  Next, a state where the component 20 is released from a state where the component 20 is coupled to the component coupling / release device 10 will be described. The meltable member 15 is melted by energizing the heater 16 and applying heat to the meltable member 15. As described above, since the movable member 12 is always subjected to stress in the direction in which the meltable member 15 exists (the direction of the second slide position), there is an existence that resists the stress from the spring 13 due to melting of the meltable member 15. The movable member 12 moves to the second slide position. In a state where the movable member 12 is in the second slide position, the ball 14 is not pressed toward the center of the inner cylinder 11b and is easily movable in the outer peripheral direction. In this state, the ball 14 is easily detached from the fitting groove 20a, and the component 20 is released.

  According to the component coupling release device 10 described above, the coupling of the component 20 to the housing 11 is realized by the balls 14. Since the material of the ball 14 is not a material that easily melts or melts by heat or the like, its shear resistance is extremely high. Therefore, it is possible to realize the coupling of the parts 20 having excellent shear resistance. In addition, the meltable member 15 that is melted by heat does not need to be completely melted, and the released state of the component 20 is realized at a stage where it cannot resist the stress from the spring 13. This is a mechanism that can be realized by the combination of the spring 13 and the movable member 12, and the released state of the component 20 can be reliably realized even by incomplete melting of the meltable member.

(Embodiment 2)
5 and 6 are cross-sectional views showing an example of a component coupling / release device according to another embodiment of the present invention. FIG. 5 shows a state in which a separable component is mounted on the component coupling / release device of the second embodiment, and FIG. 6 shows that a separable component is released from the component coupling / release device of the second embodiment. Indicates the state. 5 and 6, (a) is a longitudinal sectional view, and (b) is a sectional view taken along line BB in (a).

  The component coupling / release device 30 according to the second embodiment includes a housing 31, a helicate holder 32, a helicate 33, a meltable member 35, a heater 36, and a cap 37. A bolt 40 that is a separable part is screwed to the component coupling / release device 30 to couple or release the bolt 40.

  The housing 31 is one part of the cylindrical part coupling | bonding release apparatus 30 which accommodates other parts as shown in figure. A hole for inserting the bolt 40 is formed on the upper surface of the housing 31, and the bottom surface is open. The bottom surface is sealed with a cap 37. The housing 31 has a peripheral surface and an upper surface that are integrally formed. However, the housing 31 does not necessarily have to be integrally formed, and a housing that is composed of separate parts may be bonded by welding or the like. Examples of the material of the housing 31 include stainless steel and steel that are not easily melted or melted by heat.

  The helicate holder 32 is a cylindrical part having a thread formed on the inner surface thereof, and one helicate holder 32 is configured as one cylinder. Inside the cylinder formed by the three helicate holders 32, the helicate 33 is arranged along the thread. Examples of the material of the helisert holder 32 include stainless steel and steel that are not easily melted or melted by heat. Here, an example is shown in which one helicopter holder 32 constitutes one cylinder, but the number of the helicate holders 32 constituting one cylinder is not particularly limited. Two, four, or more may be used.

  The helisert 33 is a spiral wire whose outer diameter in a free state is larger than the inner diameter of the cylinder constituted by the three helissert holders 32. Since the outer diameter of the helicate 33 in the free state is larger than the inner diameter of the cylinder formed by the three helicate holders 32, in order to place the helicate 33 in the cylinder formed by the three helicate holders 32, It is necessary to twist it against the elastic force. In this state, if there is no restriction on the cylinder by the three helicate holders 32, the respective helicate holders 32 are separated by the elastic force of the helicate 33 and pushed out in the outer circumferential direction. The fusible member 35 described below gives this constraint. Examples of the material of the helicate 33 include stainless steel and steel that are not easily melted or melted by heat. Further, phosphor bronze or the like that is not easily melted or melted by heat and has a large elastic modulus can be exemplified.

  The fusible member 35 is a member that maintains the helicate holder 32 in a cylindrical shape against the stress received from the helicate 33, and is a cylindrical member that melts itself by application of thermal energy. The fusible member 35 is formed in a cylindrical shape, and the helicate holder 32 is constrained by tightening with the cylinder. In addition, the fusible member 35 is disposed in the gap between the cylindrical helicate holder 32 and the heater 36. However, it is also possible to maintain the cylindrical shape of the helicate holder 32 by restricting the movement of the helicate holder 32 in the direction in which the meltable member 35 exists. In this case, the meltable member 35 does not need to be formed in a cylindrical shape, and any shape can be adopted as long as the movement of each helicate holder 32 is restricted, and the fusible member 35 can be divided and arranged. Note that the meltable member 35 is a member before melting and is shown in FIG. 5, but in FIG. 6, the meltable member 35 has already been melted and is not displayed. In FIG. 6, the meltable material 35 ′ after melting is displayed. Examples of the material of the meltable member 35 include tin and solder that are easily melted by heat.

  The heater 36 is one of the melting mechanisms of the meltable member 35 disposed on the outer periphery of the meltable member 35. Here, the heater 36 is illustrated as one of the melting mechanisms for melting the meltable member 35. However, the heater 36 is not necessarily a heat generating device. For example, a material that melts the meltable member 35 with ultrasonic waves (for example, If it is composed of solder, an ultrasonic generator may be used.

  The cap 37 is a component that seals the lower surface opening of the housing 31. Examples of the material of the cap 37 include stainless steel and steel that are not easily melted or melted by heat.

  The component coupling / release device 30 shown in FIG. 5 can be assembled as follows. A heater 36 and a fusible member 35 are set in the housing 31, and a cylindrical helicate holder 32 is arranged, and a twisted helicate 33 is set therein. Thereafter, the cap 37 is disposed. In the component coupling / releasing device 30 assembled in this way, a screw portion formed on the inner surface of the helicate 33 can be desired from the opening at the top, and the thread of the bolt 40 is screwed to this screw portion. Can do. Thereby, it is possible to bind the component to the component coupling release device 30.

  On the other hand, when the heater 36 is energized and the meltable member 35 begins to melt, the Helisert holder 32 is subjected to stress from the Helisert 33 and its cylindrical shape collapses and starts moving in the outer circumferential direction. That is, the helisert holder 32 functions as a movable member. When the helisert holder 32 is sufficiently pushed in the outer circumferential direction, the inner diameter of the helisert 33 expands and becomes larger than the outer diameter of the thread of the bolt 40. This state is a release state in which the bolt 40 can be separated from the component coupling release device 30 at any time.

  According to the component coupling / releasing device 30 described above, the coupling of the bolt 40 to the component coupling / releasing device 30 is realized by the helicate 33. Since the material of the helisert 33 is not a material that is easily melted or melted by heat or the like, its shear resistance is extremely high. Therefore, the coupling of the bolt 40 having excellent shear resistance can be realized. In addition, the meltable member 35 that is melted by heat does not need to be completely melted, and the released state of the bolt 40 is realized at the stage where the stress from the helicate 33 cannot be resisted. This is a mechanism that can be realized by a combination of the helicate 33 functioning as an elastic member and the helicate holder 32 functioning as a movable member, and the released state of the bolt 40 can be reliably realized even by incomplete melting of the meltable member.

  Although the present invention has been specifically described above, it is needless to say that the present invention is not limited to the above-described embodiment and can be variously modified without departing from the gist thereof. For example, in the above-described embodiment, the member that is thermally melted as the meltable member has been described. However, a material that melts with a specific solvent or the like may be used. In this case, a mechanism for supplying a specific solvent can be exemplified as the melting mechanism.

  The present invention is an invention relating to a component coupling / releasing device that can perform separation of machine components at an arbitrary timing, and is an invention that can be applied to the entire machine field.

It is sectional drawing which showed an example in the combined state of the components coupling | bonding release apparatus which is one embodiment of this invention, (a) is a longitudinal cross-sectional view, (b) is the BB sectional view in (a). The figure is shown. It is sectional drawing which showed an example in the open state of the component coupling | bonding release apparatus which is one embodiment of this invention, (a) is a longitudinal cross-sectional view, (b) is the BB sectional view in (a). The figure is shown. 2 is a cross-sectional view showing a housing 11. FIG. It is sectional drawing which showed the movable member. It is sectional drawing which showed an example in the coupling | bonding state of the components coupling | bonding release apparatus which is other embodiment of this invention, (a) is longitudinal direction sectional drawing, (b) is the BB line in (a). A cross-sectional view is shown. It is sectional drawing which showed an example in the open state of the components coupling | bonding release apparatus which is other embodiment of this invention, (a) is longitudinal direction sectional drawing, (b) is the BB line in (a). A cross-sectional view is shown.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Component coupling | bonding release apparatus, 11 ... Housing, 11a ... Outer cylinder, 11b ... Inner cylinder, 11c ... Upper surface plate, 11d ... Lower surface plate, 11e ... Through-hole, 12 ... Movable member, 12a ... Upper part, 12b ... Middle part, 12c ... lower part, 12d ... key part, 13 ... spring, 14 ... ball, 15 ... meltable member, 15 '... meltable material, 16 ... heater, 17 ... cap, 20 ... parts, 20a ... fitting groove, 21 ... Bolt, 30 ... part coupling release device, 31 ... housing, 32 ... helisert holder, 33 ... helisert, 35 ... meltable member, 35 '... meltable material, 36 ... heater, 37 ... cap, 40 ... bolt.

Claims (3)

A meltable meltable member;
A melting mechanism for melting the meltable member;
A movable member disposed in contact with the meltable member and movable in a direction in which the meltable member is disposed when the meltable member is melted;
An elastic member that applies stress in the direction to the movable member;
A component coupling / release mechanism for coupling the separable components and releasing the separable components in the coupled state by moving the movable member in the direction due to melting of the meltable member;
A component decoupling device. The separable component includes a coupling portion having a fitting groove or a fitting hole into which a part of the ball fits on a side peripheral surface thereof,
The component coupling release mechanism includes a double concentric cylindrical housing in which an inner cylinder and an outer cylinder are formed concentrically, a ball disposed in a through hole formed in a peripheral wall of the inner cylinder, A movable member that slides between the cylinder and the outer cylinder,
The coupling part of the separable component is inserted into the inner cylinder, and the ball is pressed toward the center of the inner cylinder by the movable member being in the first slide position, and the center direction of the ball A part of the ball fits into the fitting groove or the fitting hole by pressing to, thereby coupling the coupling part of the separable component to the housing;
The ball is allowed to move in the outer peripheral direction of the inner cylinder when the movable member is in the second slide position, and the fitting groove or the fitting of the ball is moved by the movement of the ball in the outer peripheral direction. The fit from the hole is released, thereby releasing the joint of the separable parts from the housing;
The elastic member applies stress to the movable member to the second slide position;
The component melting / releasing device according to claim 1, wherein the meltable member functions as a spacer that maintains the movable member at the first slide position against the stress. The separable component has a bolt portion in which a thread is screwed,
In the component coupling release mechanism,
In its released state, the inner diameter is larger than the outer diameter of the bolt part, and a helicate screwing the bolt part in a state of being screwed to the bolt part,
A helicate holder divided into a plurality of parts that are screwed onto the outer periphery of the helicate in a state where the helicate is screwed into the bolt portion;
The helicate functions as the elastic member;
2. The meltable member maintains a screwed state in which the helicate is screwed into the bolt portion and the plurality of helicate holders are screwed into the outer periphery of the helicate against the elastic stress of the helicate. Decoupling device for described parts.

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