JPH09301701A - Oxygen generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oxygen generator which is capable of generating a desired flow rate of oxygen by preventing the dislodgment and chipping of an oxygen generating agent without increasing the weight over the entire part too much and has excellent vibration resistance. SOLUTION: This oxygen generator is provided with a planar vibration resistant member 34 between a candle holder 68 for supporting one end of a candle 32 and a cap member 42 inserted with an ignition device part F' engaged with the center of this candle holder 68 so as to cover the one opening of a housing 40 in such a manner that this member engages with the central part of the ignition device part F'. The outer end 34a of this vibration resistant member 34 and the inside end 42b of the cap member 42 are engaged with the housing 40. In addition, the outside end 34a of the vibration resistant member 34 and the inside end 42b of the cap member 42 are coupled to each other.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to the structure of an oxygen generator.

[0002]

2. Description of the Related Art FIG. 14 shows a conventional oxygen generator, which is generally designated by 1 and has an axial length of about 3 mm.
It has a substantially cylindrical shape with an outer diameter of 0 cm and an outer diameter of about 8 cm. At the center of the oxygen generator 1, there is shown a candle 2, which is a substantially cylindrical oxygen generator, which is compression-molded with sodium chlorate NaClO ₃ and reduced iron powder Fe as the main components. In order to obtain a desired time pattern of the amount of oxygen outflow from the device unit F due to sparks, it is composed of a plurality of layers with different component ratios, A layer, B layer, C layer and D layer. The desired time pattern here is a time pattern as shown in FIG. 16 in which the horizontal axis represents time and the vertical axis represents the oxygen flow rate. Initially, a large amount of oxygen is generated, and as the pyrolysis of the candle 2 progresses, This is a pattern in which the flow rate is gradually decreased.This is because, for example, when an accident occurs in an altitude where oxygen is lean in an airplane, more oxygen is required at first, and the oxygen requirement decreases as the altitude becomes lower. The time pattern corresponds to. A candle support 7 made of metal having a plurality of round holes 7a as shown in FIG. 15 is in contact with the left end of the candle 2, and a metal cup-shaped support is made at the right end of the candle 2. The candle holder 6 is externally fitted, and the ignition device F is provided at the center of the candle holder 6. Further, a heat insulating material 10 made of silica is wrapped around the candle 2 in a cylindrical shape, and the above-mentioned candle holder 6 is embedded in the heat insulating material 10. However, in some cases,
The heat insulating material 10 has a double structure, and the candle holder 6 is interposed between them.

A candle 2 and a heat insulating material 1 fitted on the candle 2
0, a candle holder 6 disposed on the right end portion, a candle support 7 disposed on the left end portion, and a heat insulating material 8 and a filter 9 disposed on both sides of the candle holder 6 and made of silica, for example.
14 has a cylindrical shape as shown in FIG. 14, which is covered with a housing 11 made of metal such as stainless steel. A plate-shaped lid member 12 in which the ignition device portion F is inserted at the center is fitted in the right opening of the housing 11.

On the other hand, a plate-like cover 21 made of metal such as stainless steel is fitted in the left opening of the housing 11. This cover 21 and candle support 7
A filter 9 made of, for example, "popcalite" (generally used as an oxidation catalyst in a chemical plant, whose main components are copper oxide CuO and manganese trioxide Mn ₂ O ₃ ) is filled between the spaces. A relief valve 22 is provided in a part of the cover 21, which is a check valve composed of a valve body 26 and a spring 25 for urging the valve body 26 to the right in the drawing. Further, an oxygen supply unit S is arranged at the center of the cover 21, and the oxygen supply unit S has a cross section of approximately L.
The metal fitting 23 has a V shape, and lead-out pipes 24a and 24b for supplying oxygen to the outside are attached to the outside of the metal fitting 23. Further, in the metal fitting 23, a valve body 27 biased rightward by a spring 28 is provided,
This constitutes a check valve.

On the other hand, an opening 6a is formed in the center of the bottom of the candle holder 6, and a detonator holding member 14 holding a detonator 18 is welded and fixed to the periphery of the opening 6a. The outer cylindrical body 15 is screwed on. The outer cylindrical body 15 is welded and fixed to the center hole 12a of the lid member 12 whose peripheral portion is fitted in the housing 11. Furthermore,
A cylindrical body 16 having a hammer piston 17 therein is in contact with the outer periphery of the center hole 12a of the lid member 12, and the inside of the cylindrical body 16 is screwed to the detonator holding member 14. The hammer piston 17 is urged to the left in the figure by a spring 19 provided in the tubular body 16, a protrusion 17a is provided at one end of the hammer piston 17, and the other end of the hammer piston 17 is projected from the tubular body 16 and formed therein. The firing pin 20 having the knob 20a is inserted into the hole. The ignition device part F according to the conventional example includes the hammer piston 17, the spring 10, the firing pin 20, the detonator holding member 14, and the outer cylinder body 1 described above.
5, a cylinder body 16 and a detonator 18.

The conventional oxygen generator 1 is constructed as described above, and its operation will be described below.

When the knob portion 20a of the firing pin 20 is pulled out from the through hole formed at the end of the hammer piston 17, the hammer piston 17 has a spring 19
The spring 17 vigorously moves to the left, the projecting portion 17a formed at the tip thereof collides with the detonator 18, sparks are generated, and the sparks ignite the candle 2. The candle 2 generates heat when the reduced iron powder Fe in this becomes iron oxide Fe ₂ O ₃ , which causes sodium chlorate NaCl.
O ₂ is decomposed into oxygen O ₂ and salt NaCl to generate oxygen, but the candle 2 is gradually thermally decomposed from the side where the spark is ignited, that is, the right side. The oxygen generated is shown in Figure 1.
As indicated by the arrow 4, the heat insulating material 10 flows axially to the left, passes through the plurality of openings 7a formed in the outer peripheral portion of the candle support 7, and is filtered by the filter 9 to remove dust, dirt, and odors. And the like are removed to make it tasteless and clean, and the oxygen is supplied from the oxygen supply unit S to the outside through the pipes 24a and 24b. The pressure of oxygen generated at this time causes the valve element 27 to open against the spring 28. The relief valve 22 opens the valve body 26 when the pressure inside the oxygen generator 1 becomes abnormally high, and releases this high internal pressure to the outside through the hole h to prevent an accident.

[0008]

In the oxygen generator 1 having the structure of the conventional example as described above, the candle support 7 for supporting the candle 2 is provided on the oxygen supply section S side.
By engaging the housing 11 with the candle 2
However, on the ignition device portion F side, the lid member 12 in which the ignition device portion F fitted in the center of the candle holder 6 is inserted is held by being engaged with the housing 11. That is, since the candle 2 is only fixed via the ignition device portion F inserted through the central portion of the lid member 12 whose peripheral portion is fixed, the right side of the candle 2 is ignited when subjected to vibration or the like. The device unit F is the lid member 12
Therefore, in the conventional oxygen generator 1, in the conventional oxygen generator 1, vibration during carrying or vibration after mounting, such as vibration during takeoff and landing or vibration during flight when mounted on an aircraft. When the candle is received, the right end of the candle 2 moves in the housing 11 and the candle 2
Falls off the candle holder 6, or the candle 2 rubs against the candle holder 6 and the candle support 7 that are support members, and a force is applied to a part of the candle 2 so that the candle 2 breaks or a part of it There was a fear that it would be missing. Therefore, even if the candle 2 is configured as described above in order to obtain a desired time pattern, the candle 2 may fall off and cannot be uniformly decomposed by heat, or a desired amount of oxygen may be generated due to a defect. There was a problem that I could not do it.

Further, the lid member 12 has an end portion at the housing 11
However, when the candle 2 in the housing 11 moves due to the above-mentioned vibration or the like, the igniter unit F also moves accordingly, and therefore the plate-like member having the igniter unit F inserted in the central portion thereof. There is a problem in that the lid member 12 of No. 1 is distorted, resulting in poor durability, and a gap is formed in the fitting portion with the housing 11, so that the generated oxygen leaks from the lid member 12.

Further, when the filter 9 is subjected to vibration, the particles forming the filter 9 rub against each other to reduce the particle size, and a cavity may be formed in the portion filled with the filter 9. Therefore, when a cavity is generated in the filter 9 due to vibration, when the generated oxygen passes through the filter 9, dust, dust, odor, etc. are not sufficiently removed, that is, the performance of the filter 9 is reduced by vibration. There was a problem of lowering.

Therefore, the present invention has been made in view of the above-mentioned problems, and it is possible to reliably obtain a predetermined amount of oxygen without dropping or chipping the oxygen generating agent even when subjected to vibration or rough handling. It is an object of the present invention to provide an oxygen generation device that can prevent the deterioration of the filter performance due to vibration, that is, have an excellent vibration resistance structure.

[0012]

Means for Solving the Problems The above-mentioned problems include a cylindrical heat insulating material filled with an oxygen generating agent, a first supporting member supporting one end of the heat insulating material and the oxygen generating agent, A second supporting member that supports the heat insulating material and the other end of the oxygen generating agent; a tubular housing that houses the heat insulating material, the first supporting member, and the second supporting member; A plate-shaped first lid member that covers the opening of the housing on the side of the first support member, and is inserted through the central portion of the first lid member and engaged with the central portion of the first support member. Ignition means, a plate-shaped second lid member that covers the opening of the housing on the side of the second support member, and oxygen supply means provided on the second lid member. Oxygen generated by thermal decomposition of the oxygen generating agent through the operation of
In an oxygen generator for supplying the oxygen to the outside via the oxygen supply means, a plate-shaped vibration-proof member is provided between the first support member and the first lid member so as to be engaged in the central portion of the ignition means. A member is provided, the outer end of the vibration-proof member and the inner end of the first lid member are engaged with the housing, and the outer end of the vibration-proof member and the first lid member This is solved by an oxygen generator characterized in that it is connected to the inner end directly or through the housing.

That is, one end of the oxygen generating agent is not only fixedly supported by the first lid member via the ignition means coupled to the center of the first supporting member, but also the first
Is also supported by a vibration-proof member provided between the support member and the first lid member. Since the vibration-proof member is provided at the end portion where the oxygen generating agent can move, the movement of the oxygen generating agent is prevented. In addition, since the vibration-proof member is also coupled to the first lid member whose end is engaged with the housing,
These two members mutually restrict movement in the axial direction. Therefore, even if vibration is applied or rough handling is performed, the oxygen generating agent is securely fixed and supported. Therefore, the first supporting member and the second supporting member supporting both sides of the oxygen generating agent are supported. The oxygen generating agent does not fall off from the nozzle, or the oxygen generating agent does not partly fall off. Therefore, the desired oxygen amount can be reliably generated. Further, because of such a structure, even if the vibration resistance is improved, the total weight of the oxygen generator does not become too heavy.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION In the oxygen generator of the present invention, between the first support member for supporting the ignition means side of the oxygen generating agent and the first lid member for covering the opening of the housing on the ignition means side,
A plate-shaped vibration-proof member that engages with the central portion of the ignition means is provided, the end of the vibration-proof member and the end of the first lid member are fitted into the housing, and the vibration-proof member and the first lid member are further provided. Combine.

Further, it is preferable that the vibration-proof member has a shape conforming to the shape of the oxygen generating agent on the ignition means side, whereby the support member supporting the end portion of the oxygen generating agent on the ignition means side can be more firmly fixed. Since it can be supported, the oxygen generator is further less likely to drop than the support member.

Although the vibration-proof member is plate-shaped, it is preferably made of a material having a large rigidity so that the oxygen generator can be made lightweight. Further, in order to facilitate the assembly of the vibration resistant member or to reduce the weight of the oxygen generator, the vibration resistant member may be provided integrally with the first support member.

Further, when the passage forming member is provided, if the end portion of the first supporting member having the cutout is brought into contact with the passage forming member, the movement of the first supporting member is made to move. As a result, the structure can be made more excellent in vibration resistance. Further, when the passage forming member is provided, a first protrusion that engages with the inner circumference of the passage forming member is provided at the end of the first support member, and the inner circumference of the housing is provided at the end of the passage forming member. If the 2nd protrusion part which engages with is provided, the 1st support member will be supported by the passage formation member via the 1st protrusion part, and the passage formation member will have the 2nd protrusion part. Since it is supported by the housing via the, the structure having further excellent vibration resistance can be obtained.

Further, even if the first support member extends to the oxygen supply means side so as to cover the heat insulating material, and the end portion of the oxygen supply side is engaged with the housing, the first support member receives the vibration when it receives vibration. Since the movement of the first support member can be suppressed, the structure having further vibration resistance can be provided in this case as well.

Further, since the second lid member and the second support member are connected to each other, these two members mutually restrict the movement of the oxygen generator in the axial direction, and between these members. It is possible to prevent the particles that make up the filled filter from becoming smaller due to friction due to vibration, and as a result, there is no cavity in the filter, so that the generated oxygen is sufficiently odorless, cleaned, and discharged to the outside. Can be supplied.

As the ignition means of the oxygen generator having the vibration-proof structure of the present invention, the detonator support member holding the detonator is integrally formed by caulking with the cylindrical body in which the spring for urging the hammer piston is installed. By using the ignition means formed in the above, not only an oxygen generator having an excellent vibration-proof structure can be obtained, but also the number of parts can be reduced as compared with the conventional one, so that the structure itself of the ignition means can be simplified. be able to.

Further, by providing an embodiment in which an annular sealing member is provided at the end portion of the valve body used in the oxygen supply means of the oxygen generator having the vibration-proof structure of the present invention, the valve body has a valve seat. When seated on, it is possible to reliably seal.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a first embodiment of the present invention. The oxygen generator of this embodiment is indicated by 30 as a whole, and the candle 32 as the oxygen generator is a reduced iron powder as in the conventional case. It has a substantially columnar shape containing Fe and sodium chlorate NaClO ₂ as main components. Although this candle 32 is shown by uniform hatching, it is composed of a plurality of layers with different component ratios so as to have a temporal pattern as shown in FIG. 16 as in the conventional example. This is omitted in the figure. Silica or trade name "Juran Blanket" (chemical composition: Al ₂ O ₃ 48%, SiO ₂ 5
2%; a cylindrical heat insulating material 36, which is generally made of ceramic fiber, is closely fitted. To the right of the candle 32 and the heat insulating material 36, a candle holder 68, which is a first supporting member made of metal such as stainless steel, is provided to support these. The candle holder 68 has a frustoconical cross section at the bottom and supports the right end of the candle 32 at this bottom, but the end of the candle holder 68, as shown, is of the candle 32. The heat insulating material 3 extends to the vicinity of the candle support 52 which is the second supporting member supporting the other end.
It is provided so as to cover 6. An opening 68c is provided at the center of the bottom of the candle holder 68,
The left end 44b of the detonator holding member 44 of the ignition device F'is fitted and inserted into the opening 68c.
The end surface of the is in contact with the candle 32.

At the right end of the detonator holding member 44, the cylindrical body 4
6 is engaged by crimping, which reduces the number of parts constituting the ignition device section F ′. On the left side of the stepped inner hole 44a of the detonator holding member 44, the detonator 4
3 is provided, the cylindrical body 46 is provided on the right side of the inner hole 44a.
Of the inner hole 46a, and the inner hole 44a and the inner hole 46a.
A hammer piston 48 is provided so as to be interposed in a by being urged to the left by a spring 47 arranged in the cylindrical body 46. Similar to the conventional example, the hammer piston 48 is provided with a protruding portion 48a at the left end portion thereof, and the right end portion thereof is projected from the cylindrical body 46 to the outside, and a firing pin (not shown) is inserted through a hole provided therein. The firing pin is provided with a pin P having a label 49 indicating cautions for handling and the like. Detonator holding member 4
Although the ignition device portion F ′ including the cylindrical body 46, the detonator 43, the spring 47, and the hammer piston 48 is inserted into the hole 42a provided at the center of the bottom portion of the lid member 42 that is the first lid member. The lid member 42 is fixed to the detonator holding member 44 by laser beam welding. The lid member 42 is made of a plate-shaped metal such as stainless steel and covers the right side opening of the tubular housing 40 (made of a metal such as stainless steel). Further, the lid member 42 has its end portion bent leftward in the drawing, that is, an inner end portion 42b bent inward with respect to the right side opening of the housing 40 is welded to the housing 40.

A heat insulating material 33 connected to the heat insulating material 36 is provided between the candle holder 68 and the candle 32. The heat insulating material 33 is harder than the heat insulating material 36, and the candle 32 is heated. A rigid candle 32 (made of metal), which is a compression molded path and serves as a path for oxygen generated immediately after the decomposition starts to flow out to the heat insulating material 36.
It functions as a cushion when it comes into contact with the candle holder 68. Further, on the right side of the candle holder 68, a vibration-proof member 34 made of a material having high rigidity, for example, stainless is fitted. The vibration-proof member 34 is in contact with the candle holder 68 and has a shape conforming to the shape of the ignition device F ′ side of the candle holder 68, that is, the shape of the bottom portion of the candle holder 68, as shown in the drawing. Supporting candle holder 6
8 is more firmly supported. That is, with such a shape, the vibration-proof member 34 also reinforces the candle holder 68. Further, the vibration-proof member 34 is fixed to the housing 40 by bending the peripheral portion thereof toward the lid member 42 and butt-welding the outer end portion 34 a with the inner end portion 42 b of the lid member 42. Therefore, the vibration-proof member 34 and the lid member 42 support the right side of the candle 32 in the shape of a container, that is, the side peripheral surface of the container is in contact with the housing 40.

On the other hand, a candle support 52 is provided on the left side of the candle 32, and the candle 32 is interposed via a heat insulating material 50 having a trapezoidal cross section which is slightly harder than the heat insulating material 36.
Is supported at the bottom. Candle support 52
The end portion 52b of the candle support 52 is bent to the left side in the drawing and is engaged with the housing 40.
Is provided with a plurality of round holes 52a. Further, a passage forming member 35 is sandwiched between the candle support 52 and the heat insulating material 50. The passage forming member 35 is sandwiched by its bottom portion, but its side portion extends concentrically with respect to the housing 40, and its end portion extends to the vicinity of the vibration-proof member 34, and the vibration-proof member 34. And a slight gap q is formed. The passage forming member 35 and the candle holder 68 form an annular gap r . Further, the passage forming member 35 forms an annular passage 72 extending in the axial direction with the candle holder 68, and an annular passage extending concentrically with the passage 72 in the axial direction outside the passage 72 with the housing 40. 73 is formed.
Since the round hole 52a of the candle support 52 is a hole for the oxygen that has passed through the passage 73 to flow into the filter 53, the round hole 52a is provided so as to face the passage 73 .

A cover 60, which is a plate-shaped (for example, metal such as stainless steel) second cover member, is provided at the left opening of the housing 40, and an end portion 60 of the cover 60 is provided.
a is bent to the right in the drawing, and the housing 40
It is bonded to the end 52b of the candle support 52 by butt welding. A relief valve 55 having the same structure as the conventional one is provided on a part of the cover 60, that is, a valve element 63 biased to the right by a spring 64 is seated on a valve seat forming member 66. When the internal pressure of the oxygen generator 30 becomes abnormally high, oxygen is flowing out from the hole h '. Further, a valve seat forming member 74 is provided in the center of the cover 60, and a through hole 74a is formed inside the valve seat forming member 74.
A conical valve seat 74aa is formed at one end, that is, the left end in the figure. Further, in the through hole 74a, a poppet valve body 61 biased rightward by a spring 62 is provided, and the poppet valve body 61 has a conical shape at one end, that is, the left end in the drawing. Seat 61
a. An annular groove is provided in the seat portion 61a, and an O-ring 77, which is an annular sealing member, is fitted therein. Therefore, when the seat portion 61a of the valve body 61 is seated on the valve seat 74aa, It can be tightly sealed, that is, it can reliably act as a check valve. In addition, the valve seat forming member 74 has a left side substantially L
It can be inserted into a letter-shaped metal fitting 56 to be disassembled, and lead-out pipes 57a and 57b for supplying generated oxygen to the outside are attached to the metal fitting 56 outside.

The cover 60 and the candle support 5
Between the two, a filter 53 made of, for example, popcalite is filled through a candle support 52 and a heat insulating material 51, and a cover 60 and a heat insulating material 54.

Oxygen generator 30 according to an embodiment of the present invention
Is configured as described above. Next, this operation will be described.

In use, the firing pin is pulled out from the hammer piston 48 together with the pin P. Then
As in the conventional case, the hammer piston 48 moves to the left in the figure by the spring force of the spring 47, and the protruding portion 48a
Collides with the detonator 43 and generates a spark. This spark ignites the candle 32, and the candle 32 is gradually thermally decomposed from the right side on the side of the igniter F ′ to generate oxygen. This oxygen flows to the left in the heat insulating material 36 (after passing through the heat insulating material 33 when it begins to thermally decompose), reaches the left end of the heat insulating material 36, and then at the end of the heat insulating material 36. through r flows out radially outward, flows through the passageway 72 formed by the path forming member 35 and the candle holder 68 to turn right, passes through the gap q, then the path forming member 35 and the housing 40 flows to the left in a passage 73 formed by 40, passes through the round hole 52a of the candle support 52 and the heat insulating material 51, and flows into the filter 53. In the filter 53, dust, dust, odor, etc. of the air are removed as in the conventional case to make it tasteless and clean, and the derivation pipe 5 of the oxygen supply unit S '
It is supplied to the outside from 7a and 57b. At this time, the valve body 61 of the oxygen supply unit S ′ is controlled by the spring 62 by the pressure of the generated oxygen.
Is moved to the left against the urging force of the seat 61a.
Moves away from the valve seat 74aa to open the valve. When the pressure inside the oxygen generator 30 becomes abnormally high, the valve body 26 of the relief valve 55 opens, and this high internal pressure is applied to the hole h ′.
Pass through and release to the outside to prevent accidents.

In the present embodiment, since the vibration-proof member 34 having the outer end 34a thereof engaged with the housing 40 is arranged on the right side of the candle holder 68, the candle 32 is placed through the ignition device F '. 2 of the lid member 42 and the vibration-proof member 34
Since the vibration-proof member 34 is engaged with the housing 40 by one member, and the vibration-proof member 34 is arranged closer to the candle 32 than the lid member 42, the candle 32 can be more firmly fixed and supported than the conventional one. Therefore, even if the oxygen generator 30 receives rough handling, vibration, etc., it is possible to prevent the candle 32 from dropping or chipping. Further, since the vibration-proof member 34 and the lid member 42 are coupled directly or via the housing 40, these two members mutually regulate axial vibrations, so that the overall weight is not so heavy, The structure can be made more excellent in vibration resistance than before. Further, the vibration-proof member 34 is
Since the candle holder 68 has a shape that conforms to the shape of the bottom of the candle holder 68, the candle holder 68 that supports the right end portions of the candle 32 and the heat insulating material 36 can be reinforced and supported. Therefore, even if the oxygen generator 30 of the present invention is subjected to rough handling and vibration, it can be made to have a structure that is much more excellent in vibration resistance than conventional ones. Therefore, the candle 32 has the candle holder 68 and the candle support 52. It is possible to prevent the candle 32 from falling off from the support member and the candle 32 from partially missing, and it is possible to reliably obtain a desired oxygen amount.

Further, in this embodiment, the candle 3
After the high temperature oxygen generated from 2 flows to the left end portion of the heat insulating material 36, it further flows from the left end portion to the right end portion of the passage 72 , and then flows into contact with the housing 40. Even with oxygen, the high temperature oxygen is already cooled when passing through the housing 40, so that the heat of the oxygen does not heat the housing 40, that is, the outer circumference of the oxygen generator 30.

Further, in the ignition device portion F'used in the present embodiment, since the tubular body 46 is integrally fixed to the detonator holding member 44 by caulking, the number of parts can be much reduced as compared with the conventional one. Therefore, the configuration of the ignition device itself can be simplified. Further, in the oxygen supply unit S ′ used in this embodiment, the O-ring 77 is attached to the seating portion 61a of the valve body 61.
Since the valve seat forming member 74 is provided in the metal fitting 56, the sealability can be improved, and the valve seat forming member 74 can be easily disassembled for maintenance or the like.

Further, in this embodiment, since the cover 60 which is the second lid member and the candle support 52 which is the second support member are combined, the cover 60 and the candle support 52 are axially arranged. Regulate movements, part 2
Since the friction between the particles of the filter 53 filled between the two members is suppressed to a minimum, it is possible to prevent the particles from being reduced by the friction and to form a cavity in the portion filled with the filter 53 as in the conventional case. Therefore, dust, dust, odor, etc. can be reliably removed from the generated oxygen.
That is, it is possible to prevent the performance of the filter 53 from being deteriorated when it receives vibration.

Next, the second embodiment will be described with reference to FIGS.
This will be described with reference to FIG. The parts corresponding to those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

That is, the oxygen generator of the present embodiment is shown as a whole at 30 ', which has almost the same structure as the oxygen generator 30 of the first embodiment, but in this embodiment,
A candle holder 78 is provided as the first support member. This has the same shape as the candle holder 68 of the first embodiment and has an opening 78 provided at the bottom thereof.
4 on the left side end of the detonator holding member 44 of the ignition device section F ′.
4b is inserted, the left end of the candle holder 78 is in contact with the passage forming member 35, and a plurality of notches 78a are formed in the left end of the candle holder 78 from the candle 32 as shown in FIG. The generated oxygen is provided to flow out from the left end portion of the heat insulating material 36 to the passage 72 .

In this embodiment, in addition to the same operation and effect as those of the first embodiment, the end portion of the candle holder 78 supporting the right end portion of the candle 32 is connected to the passage forming member 35 (which is attached to the housing 40). (Is sandwiched between the engaged candle support 52 and the left end of the candle 32) and is supported by the vibration-proof member 34 near the bottom of the candle holder 78.
That is, the candle holder 78 that supports the right end portion of the candle 32 is supported by both the bottom portion and the end portion, and the right end portion of the candle 32, which was easy to move when subjected to vibration, is firmly supported. Even more
The structure has excellent vibration resistance. Further, since the end portion of the candle holder 78 is simply contacted and supported, that is, the end portion of the candle holder 78 is not supported by welding, the vibration resistance can be improved without increasing the manufacturing process. it can.

In this embodiment, the end portion of the candle holder 78 having the notch 78a at the end is connected to the passage forming member 35.
However, since the cutout 78a is for the oxygen that has passed through the heat insulating material 36 covering the candle 32 to flow out to the passage 72 , the cutout 78a is not a cutout but a plurality of openings. It is also possible to provide a candle holder that is provided in the vicinity of and to make its end contact the passage forming member 35, and it is clear that the same effect can be obtained in this case as well.

Next, the third embodiment will be described with reference to FIGS.
The same reference numerals are given to the portions corresponding to the above-mentioned embodiment, and the description thereof will be omitted.

The oxygen generator of this embodiment has a total of 3
0 ", which is the oxygen generator 30 of the above embodiment,
30 ', which has almost the same structure as that of
A candle holder 88 is provided as a support member of the. In the candle holder 88 of this embodiment, the left end 44b of the detonator holding member 44 of the ignition device F'is fitted through the opening 88c provided at the bottom, and the left end thereof is shown in FIG. As described above, the plurality of slit-shaped notches 88a are provided at substantially equal angular intervals. This slit-shaped notch 8
8a is formed by cutting out a part of the candle holder 88 to the outside, and the cut out parts become the ridges 88b which are the first ridges on both sides of the slit-shaped notch 88a. In this embodiment, the protrusion 88b is in contact with the inner circumference of the passage forming member 35 '. As shown in FIG. 4, the passage forming member 35 ′ extends so that its end portion abuts on the vibration-proof member 34, and a plurality of slit-shaped notches 35a ′ are formed at the end portion thereof as shown in FIG. It is formed at substantially equal angular intervals. This slit-shaped notch 35a ′ has the same structure as the slit-shaped notch 88a of the candle holder 88, that is, by slitting a part of the passage forming member 35 ′ outward as shown in FIG. -Shaped cutouts 35a 'are formed, and a part of the cutouts formed on both sides of the cutouts 35a' is a second projection, which is a projection 35.
It is provided as b '. The protruding portion 35b ′ is in contact with the inner circumference of the housing 40.

Although the operation is performed with the above-described structure, the operation of the present embodiment is the same as that of the first embodiment, and the description thereof will be omitted. However, in the present embodiment, the candle holder 88 is used. The protrusion 88b provided near the end of the passage abuts the inner circumference of the passage forming member 35 ', and the protrusion 35b' provided near the end of the passage forming member 35 'forms the housing. Since it is in contact with the inner circumference, the passage forming member 3
The ridge portion 3 in which the 5'end (easy to move) is the second ridge portion
5b 'is supported by the housing 40, and the (easy to move) end of the candle holder 88 is supported on the inner periphery of the passage forming member 35' through the ridge 88b which is the first ridge. Therefore, the radial movement of the candle holder 88 supporting the right end portion of the candle 32 is suppressed. Therefore, the candle 32 is supported not only on the right side by the vibration-proof member 34 and the lid member 42, but on the left side by the candle support 52 to prevent movement due to vibration, and also to prevent the movement of the candle 32 in the radial direction. Since it is also suppressed, the structure has more excellent vibration resistance. Therefore, even if the candle 32 is subjected to vibration or rough handling, the candle 32 does not drop off from the candle holder 88 or the candle support 52 or chip, and it is possible to reliably generate the predetermined oxygen. In this embodiment, since the end of the passage forming member 35 'is brought into contact with the vibration-proof member 34, that is, the passage forming member 35' is supported by both ends, it is possible to more firmly support it. Therefore, the candle holder 88 engaged with the passage forming member 35 'is also firmly supported, so that the candle 32 does not easily move even if it receives vibration. Therefore, the problems as described above can be solved.

Further, in this embodiment, the candle holder 8
Since the ridges 88b provided in 8 are formed at once when the slit-shaped notches 88a are provided, the ridges 35b 'provided in the passage forming member 35' also have the slit-shaped notches 35a '. Since the protrusions 88b and the protrusions 35b 'do not have to be provided separately from the slit-shaped cutouts 88a and the slit-shaped cutouts 35b', the candle holder 88 and the passage forming member 35 are formed. There is no increase in the number of manufacturing processes.

In this embodiment, the candle holder 8
8 is provided with a slit-shaped notch 88a for allowing oxygen to flow from the heat insulating material 36 to the passage 72 , but this may be an opening, and the end portion thereof may be the passage forming member 35 as in the second embodiment. 'May be abutted. Further, the passage forming member 35 ′ is provided with the slit-shaped notch 35a ′ for allowing oxygen to flow out from the passage 72 to the passage 73 , but this is not limited to the notch, and the opening may be formed to open the end face of the passage forming member 35 ′. It is clear that if the vibration-proof member 34 is brought into contact with the entire circumference, the vibration-proof property is further enhanced as compared with the case where the slit-shaped notches 35a ′ are provided and brought into contact with the vibration-proof member 34. In addition, in this embodiment, since the protrusions 88b and the protrusions 35b 'are only in contact with the passage forming member 35' and the housing 40, the vibration resistance is improved without increasing the number of manufacturing steps. You can

Further, in the third embodiment described above, the rib portion 88b is formed.
Further, the ridge 35b 'is formed so as to extend in the axial direction of the housing 40, but an annular ridge is provided in the vicinity of the end so that the ridge is formed on the passage forming member or the inner circumference of the housing. You may make it contact | abut. That is, as shown in FIGS. 7 to 9, a plurality of openings 88a ′ are provided at the end of a candle holder 88 ′ having an opening 88c ′ at the bottom.
An end portion of the ring-shaped member is formed in contact with the passage forming member 35 ″, and an annular protruding portion (first protruding portion) 88b ′ is formed in the vicinity of the end portion so as to contact the inner circumference of the passage forming member 35 ″. Further, a plurality of openings 88ba ′ are provided here, or openings 35a ″ are provided at the ends of the passage forming member 35 ″, and the ends thereof are provided with the vibration-proof member 34.
A ring-shaped ridge (second ridge) 35b ″ that abuts on the inner periphery of the housing 40 in the vicinity of the end, and further has a plurality of openings 35ba ″ in the ridge 35b ″. In this case, since the annular protruding portion 88b 'and the annular protruding portion 35b "are engaged with each other over the entire circumference, the protruding portion of the third embodiment described above is provided. Article 88
It can be supported more firmly than b and 35b '.

Next, a fourth embodiment of the present invention will be described with reference to FIG.
Although the same structure as that of the above-described embodiment will be denoted by the same reference numeral, the description thereof will be omitted.

The oxygen generator of this embodiment has a total of 31
The vibration-proof member 34 ′ is a plate-shaped component made of metal such as stainless steel, and the shape of the right end of the candle 32 is different from that of the above-described embodiment.
Although the shape is slightly different from that of the vibration-proof member 34 of the above-mentioned embodiment in order to have a shape conforming to the shape of the bottom portion of the candle holder 38 supporting the right end portion of 2, the structure is the same as that of the above-mentioned embodiment. Yes, that is, the left end portion 44b of the detonator support member 44 of the ignition device portion F'is fitted in the center portion, and the end portion is bent to the right side in the drawing, and the outer end portion 34 is bent.
The outer end 34a 'is engaged with the housing 40 and is joined to the inner end 42b of the lid member 42 engaged with the housing 40 by butt welding. Therefore, similarly to the above-described embodiment, the vibration-proof member 3
Reference numeral 4'is shaped like a lid member 42 and a container, and the side portion of the container is engaged with the housing 40.

The candle holder 38 that supports the right side of the candle 32 and is a first supporting member made of metal such as stainless steel is the candle holder 6 of the above-described embodiment.
Similar to Nos. 8, 78, 88, there is an opening 38c at the center of the bottom, and the left end 4 of the detonator support member 44 of the ignition device F'is provided.
4b is inserted. In the present embodiment, since the passage forming member 35 that forms the passage 72 and the passage 73 in the above embodiment is not provided, as shown in FIG. 10, the side portion of the candle holder 38 is substantially extended to the end portion. The diameter of the end portion 38 is made constant and the diameter of the end portion 38 is increased as a step at the end portion.
b is clamped between the housing 40 and the outer peripheral end 52b 'of the candle support 52'. A cylindrical closed space 39 is formed between the candle support 52 'and the housing 40. Further, in the present embodiment, the candle support 52 ′ of the second support member that supports the left end portion of the candle 32 and is made of metal such as stainless steel is the same as the candle support 52 of the above-described embodiment, and has a plurality of circular shapes. A hole 52a 'is provided, the end portion 52b' of which engages the housing 40,
b'is bonded to the cover 60, which is the second lid member (this end is engaged with the housing 40 with the end 38b of the candle holder 38 interposed), by lap welding.

The oxygen generator 31 of the present embodiment has the above-mentioned structure. Next, this function will be described.

In use, as in the above embodiment,
Hammer piston 4 with firing pin and pin P
Pull out from hole 8. Then, the hammer piston 48 of the ignition device F ′ moves to the left in the figure by the spring force of the spring 47, and the protrusion 48 a collides with the detonator 43 to generate a spark. This spark ignites the candle 32, and the candle 32 is gradually thermally decomposed from the right side on the side of the igniter F ′ to generate oxygen. This oxygen flows through the heat insulating material 36 (after passing through the heat insulating material 33 when it begins to thermally decompose) to the left side in the drawing, and reaches the left end portion of the heat insulating material 36. Since the passage forming member is not provided, the oxygen reaching the heat insulating material 36 is not supported by the candle support 5
It passes through the 2 ′ round hole 52a ′ and the heat insulating material 51, and then flows into the filter 53. In the filter 53, air dust, dirt, odor, etc. are removed, made tasteless and clean, and supplied to the outside through the outlet pipes 57a, 57b of the oxygen supply unit S ′, as in the above embodiment.

In this embodiment, similarly to the above-mentioned embodiment, the vibration-proof member 34 'engaged with the ignition device F'in the central portion is arranged between the candle holder 38 and the lid member 42, and the outside thereof. Since the end portion 34a 'is engaged with the housing 40 and is joined to the inner end portion 42b of the lid member 42, the oxygen generating device 31 has the same effect as that of the above embodiment, that is, excellent vibration resistance. be able to. In addition, the end of the candle holder 38 is attached to the candle support 52 'and the housing 4
Since it is clamped between 0 and 0, that is, the end portion of the candle holder 38 that supports the movable right end portion of the candle 32 at the bottom portion can be firmly supported. Can also have a structure with excellent vibration resistance.

Further, in this embodiment, the candle support 5 is used.
Since the 2'and the cover 60 are joined by lap welding, that is, these members are fixed to each other so as to suppress the movement in the axial direction, the particles of popcalite in the filter 53 filled between them. It is possible to prevent the particles from being subjected to friction due to vibration so that the particle size becomes small and a cavity is formed in the filter 53, and oxygen is not sufficiently cleaned.

In this embodiment, the candle holder 38
Since the sealed space 39 is provided between the housing and the housing 40,
Since the heat of the high-temperature oxygen passing through the heat insulating material 36 is not insulated by the closed space 39 serving as the heat insulating material and is not transmitted to the housing 40, the housing 40 does not become hot, that is, the oxygen generator 31 The surface does not get hot.

Next, a fifth embodiment will be described with reference to FIG. 11. The parts corresponding to those in the above embodiment are designated by the same reference numerals and the description thereof will be omitted.

In the oxygen generator 31 'of this embodiment, the candle holder 41 made of metal such as stainless steel supports the right ends of the candle 32 and the heat insulating material 36.
The first support member 138 is constituted by a cylindrical body 37 made of, for example, copper, which is fitted in the candle holder 41 and extends to the left end portion of the heat insulating material 36. The candle holder 41 of the present embodiment has an opening 4 provided at the center of the bottom thereof.
The detonator support member 44 of the ignition device section F ′ is engaged with 1c. Further, the outer peripheral end 41a of the candle holder 41 is engaged with the housing 40, and this is joined by butt welding to the outer end 42b of the lid member 42 engaged with the housing 40. Therefore, a part of the candle holder 41 is a vibration-proof member, that is, in this embodiment,
The first support member and the vibration-proof member are integrated. Further, the tubular body 37 has one end on the right side in the drawing clamped by the candle holder 41, but the end on the left side is bent radially outward to form a flange portion 37 a, and the end is attached to the housing 40. It is in contact with the outer periphery of the engaged heat insulating material 50 '. Therefore, an airtight annular closed space 39 ′ is formed between the housing 40 and the cylindrical body 37. In this embodiment, the heat insulating material 33 'has a different shape from that of the heat insulating material 33 of the above embodiment, and the heat insulating material 3'is not bent at its end.
6 is engaged, but made of the same material as the heat insulating material 33,
And a similar action, that is, a path for oxygen generated immediately after the candle 32 starts thermal decomposition to flow out to the heat insulating material 36, and a cushion function when the candle 32 and the candle holder 41 contact each other. Are doing

The oxygen generator 31 'of this embodiment is constructed as described above, and its operation will be described below.

In use, as in the above embodiment,
Hammer piston 4 with firing pin and pin P
Pull out from hole 8. Hammer piston 4 of ignition device F '
8 is moved to the left in the figure by the spring force of the spring 47, and the projecting portion 48a collides with the detonator 43 to generate a spark. This spark ignites the candle 32 and the candle 3
2 is gradually thermally decomposed from the right side on the ignition device section F ′ side to generate oxygen. This oxygen flows to the left in the figure through the heat insulating material 36 (after passing through the heat insulating material 33 ′ when it begins to thermally decompose) and reaches the left end portion of the heat insulating material 36, but in this embodiment, No passage forming member is provided, and the cylindrical body 3
Since the heat insulating material 50 is provided between the heat insulating material 36 and the candle support 52 so as to abut the housing 40, the oxygen reaching the heat insulating material 36 passes through the heat insulating material 50, and then the round hole 52 a of the candle support 52. And, it passes through the heat insulating material 51 and flows into the filter 53. In the filter 53, dust, dust, odor and the like of the air are removed as in the conventional case, and the air is made tasteless and clean, and then supplied to the outside through the outlet pipes 57a and 57b of the oxygen supply unit S ′.

In this embodiment, only the opening 41c of the candle holder 41 penetrates the left end 44b of the detonator support member 44 of the ignition device F ', and a plurality of openings 41c are provided here as in the above embodiment. Since it is not necessary to fit the above-mentioned members at the same time, the assembly becomes easy. Moreover, since there is only one member that covers the right side of the candle 32, the oxygen generator 31 'of this embodiment is relatively lighter than the above-described embodiments.

Further, since the flange portion 37a provided on the left end portion of the tubular body 37 is engaged with the inner circumference of the housing 40, that is, the first support member supporting the right end portion of the candle 32. Not only is 138 supported by the candle holder 41 to the right of the candle 32,
Since the left side of the candle is supported by the flange portion 37a of the cylindrical body 37, the oxygen generator 31 'of the present embodiment.
Since the movement of the candle 32 inside the housing 40 is suppressed even if the candle 32 is vibrated, it is possible to prevent the candle 32 from falling off or chipping.

In addition, in this embodiment, since the cylindrical closed space 39 ' is provided between the cylindrical body 37 and the housing 40, the fourth embodiment
Similar to the embodiment, this closed space 39 ' acts as a heat insulating material, the heat of the generated oxygen is not transmitted to the housing 40, and therefore the outer circumference of the oxygen generator 31' does not become hot.

Although the respective embodiments of the present invention have been described above, the present invention is not limited to these, and various modifications can be made based on the technical idea of the present invention.

For example, in the third embodiment described above, the plurality of slit-shaped openings 88a and the ridges 88b which come into contact with the inner circumference of the passage forming member 35 'are provided at the end of the candle holder 88. Like the oxygen generator 90 described above, a plurality of cuts are made in the end portion of the candle holder 98, and the segment is bent radially outward so that the tip end portion thereof contacts the inner circumference of the passage forming member 35, and the ridge portion is formed. The opening 98a may be formed by forming 98b and then forming the protruding portion 98b. In this case, the generated oxygen passes through the openings 98a from the heat insulating material 36, then passes between the ridges 98b and flows out to the passage 72 . The ridge portion 98b bent inward, and the passage forming member 35 without becoming the ridge portion 98b.
And segments that engage with are formed alternately. Further, FIG.
In 2, the end of the candle holder 98 is cut parallel to the axial direction so that the protrusion 98b has a rectangular shape. However, the end notch is formed diagonally with respect to the axial direction. Alternatively, the directions of the cuts to be fitted may be different from each other, so that the protrusions may have a triangular shape or a trapezoidal shape. Further, a through hole may be formed in the center of each of the protrusions so that the flow area of oxygen flowing out from the heat insulating material 36 to the passage 72 becomes large. Furthermore, the end of the candle holder may be cut diagonally with respect to the axial direction, and may be bent parallel to the axial direction without being bent on the same circumference to provide a triangular protrusion. .

Further, in the third embodiment, as shown in FIG. 6, the ridge portion 35b 'formed on the passage forming member 35'.
All of the above are abutted on the inner circumference of the housing 40, but a part of the ridges may be bent radially inward to abut the outer circumference of the candle holder. In this case, since the passage forming member engages not only with the housing but also with the candle holder at the end of the passage forming member, the radial movement is further suppressed and the vibration resistance is improved. It can be further improved.

In the above embodiment, the candle holder 68,
A heat insulating material 33 is provided between the candles 78, 88, 38, 41 and the candle 32 and between the candle supports 52, 52 'and the candle 32 as a cushion for preventing friction between these hard members due to vibration. , 33 ',
Although 50 is provided, these may not be provided. However, since the heat insulating materials 33 and 33 ′ are also provided as a path for flowing out oxygen generated in the initial stage of thermal decomposition of the oxygen generating agent to the heat insulating material 36, the heat insulating materials 33 and 33 ′ are not provided. In this case, it is necessary to have a structure for ensuring this path, for example, a structure using a candle 32 having a plurality of grooves on the side of the ignition device F ′.

Further, in the above embodiment, the vibration-proof members 34, 3
Although a space is provided between 4'and the lid member 42, a heat insulating material may be provided here, and in the above embodiment, the vibration resistant member 34,
34 'and candle holders 78, 88, 98, 38, 4
1 and 1 are directly contacted with each other, but a heat insulating material acting as a cushion may be provided between them, and in this case, the heat of oxygen generated is passed through the vibration-proof members 34 and 34 'to the housing 40. Is further prevented.

Further, in the above embodiment, the lid member 42 as the first lid member and the vibration-proof members 34 and 34 'were joined by butt welding, but the joining method is not limited to these. Alternatively, they may be joined by other methods, for example, lap welding or assembly. Furthermore, in the present embodiment, also in the method of joining the cover 60, which is the second lid member, and the candle supports 52, 52 ′, which are the second supporting members, by a method other than the joining method used in the above-mentioned embodiment, for example, They may be combined by assembling.

Further, in the above embodiment, the first lid member,
Although the vibration-proof member is provided separately, the first lid member and the vibration-proof member may be integrally formed and then inserted into the housing. Alternatively, the first lid member and the vibration-proof member may be first combined and then engaged with the housing 40.

Further, the oxygen generators 30 and 3 of the above-mentioned embodiment.
In 0 ′, 30 ″, 31 and 31 ′, the ignition device section F ′ which is the ignition means and the oxygen supply section S ′ which is the oxygen generating means having the above-described configuration are used. Even if the oxygen supply unit S is used, it is possible to obtain an oxygen generator having excellent vibration resistance.

Although the same candle 32 as the conventional example was used as the candle 32 as the oxygen generating agent, of course,
According to the intended use, even if an oxygen generating agent that generates oxygen in a time pattern of a desired flow rate is applied, this configuration has excellent vibration resistance as long as it has the configuration of the present invention as described above. Needless to say, it can have.

Further, in the above embodiments, the candle holders 38, 41, 68, 78, 8 which are the first supporting members.
8, 88 ', the second support member, the candle supports 52, 52', and the housing 40 are made of metal, but the material is not limited to this. For example, thermosetting plastic (typical The resin may be a heat-resistant resin such as urea resin, melamine resin, and phenol resin). In addition, in all the above-described embodiments, the lid member 4 that covers the opening of the housing 40 is used.
2, the cover 60 and the vibration-proof members 34, 34 'are made of a plate-shaped metal, but are not limited to this, and may be made of a plate-shaped substance made of a heat-resistant resin such as thermosetting plastic. It may be formed. Of course, in this case, it is needless to say that the material must be a plate-like material in order to reduce the weight of the oxygen generator, and must have a vibration resistance to some extent. As an example of this modification, FIG. 13 shows a candle holder 168, a candle support 152, and a lid member 14 made of heat-resistant synthetic resin.
2, cover 160, vibration-proof member 134 and housing 14
An oxygen generator 130 having 0 is shown. When this synthetic resin is used as the material, the oxygen generator 13
Needless to say, the weight can be significantly reduced as compared with the case where 0 is made of metal.

Furthermore, by taking advantage of the difference in thermal conductivity between the materials forming the member (for example, synthetic resin and metal),
The heat of oxygen may be applied to the candle 32 so that the heat does not escape to the outer periphery of the oxygen generating agent. For example, the candle support 52, 52 ′ of the second support member supporting the undecomposed side of the candle 32 is made of metal, and the candle support of the first support member supporting the ignition means side of the candle 2. Holders 38, 41, 68, 78, 88,
88 'may be a generator made of heat-resistant synthetic resin.

In the above embodiment, the material of the passage forming members 35, 35 'and 35 "is not described above, but the passage forming members 35, 35' and 35" guide the oxygen generated as described above. Since the passages 72 and 73 are formed, the heat of oxygen is transferred to the passage forming members 35, 35 ′, and 35 ″, so that a heat resistant material is preferable. For example, the passage forming member is made of metal such as stainless steel. If so, the thermal conductivity is good, so that it is possible to obtain the effect of sufficiently cooling the oxygen passing through the passage 72 and giving the heat transferred from the oxygen to the oxygen supply device side of the candle 32. Further, in order to further reduce the weight of the oxygen generator, it may be formed of, for example, a heat resistant synthetic resin.

[0072]

The present invention is embodied in the form described above and has the following effects.

Since the vibration-proof member is provided so as to be engaged with the central portion of the ignition means and the outer end of the vibration-proof member is engaged with the housing, that is, by the two members of the first lid member and the vibration-proof member. Since it engages with the housing, it can have better vibration resistance than before. Further, since the outer end of the vibration-proof member is coupled to the inner end of the first lid member engaging with the housing directly or through the housing, the first lid member and the vibration-proof member are joined together. The vibrations in the axial direction are suppressed from each other, and the vibration resistance can be further improved.

Further, since the end portion of the first support member supporting the end portion of the oxygen generating agent on the ignition means side is brought into contact with the passage forming member, that is, the first support member has its end portion. Since the part is supported, the candle can be more firmly fixed, that is, vibration resistance can be improved.

Further, the first protrusion is provided on the first supporting member.
Since the passage forming member is provided with the second projecting ridges and supported by contacting the passage forming member and the inner circumference of the housing, it is possible to prevent the oxygen generating agent from swaying in the radial direction due to vibration. Vibration resistance can be further enhanced.

Further, since the left end portion of the first supporting member supporting the ignition means of the oxygen generating agent is supported by the housing, the swinging of the oxygen generating agent in the radial direction is prevented also in these cases. Therefore, the vibration resistance can be further enhanced.

[Brief description of drawings]

FIG. 1 is a sectional view of an oxygen generator according to a first embodiment of the present invention.

FIG. 2 is a sectional view of an oxygen generator according to a second embodiment of the present invention.

FIG. 3 is an exploded perspective view of a main part of the oxygen generating agent.

FIG. 4 is a sectional view of an oxygen generator according to a third embodiment of the present invention.

5 is a cross-sectional view taken along line [5]-[5] in FIG.

FIG. 6 is a sectional view taken along line [6]-[6] in FIG.

FIG. 7 is a sectional view of an oxygen generator according to a modification of the third embodiment of the present invention.

8 is a sectional view taken along the line [8]-[8] in FIG.

9 is a cross-sectional view taken along line [9]-[9] in FIG.

FIG. 10 is a sectional view of an oxygen generator according to a fourth embodiment of the present invention.

FIG. 11 is a sectional view of an oxygen generator according to a fifth embodiment of the present invention.

FIG. 12 is an exploded perspective view of main parts showing an oxygen generator according to a first modification of the present invention.

FIG. 13 is a cross-sectional view of a main part showing an oxygen generator according to a second modification of the present invention.

FIG. 14 is a cross-sectional view of an oxygen generator according to a conventional example of the present invention.

15 is a sectional view taken along the line [15]-[15] in FIG.

FIG. 16 is a diagram showing an example of a time-oxygen flow rate pattern.

[Explanation of symbols]

30 Oxygen generator 30 'Oxygen generator 30''Oxygen generator 31 Oxygen generator 31' Oxygen generator 32 Candle 34 Vibration-proof member 34 'Vibration-proof member 35 Passage forming member 35' Passage forming member 35b 'Protrusion ridge 36 Thermal insulation 38 Candle holder 40 Housing 41 Candle holder 42 Lid member 52 Candle support 52 'Candle support 53 Filter 55 Relief valve 60 Cover 68 Candle holder 72 Passage 73 Passage 78 Candle holder 78a Notch 88 Candle holder 88b Ridge portion 130 Oxygen generator F'Ignition Equipment S'Oxygen supply

Claims (10)

[Claims] 1. A tubular heat insulating material filled with an oxygen generating agent, a first support member supporting one end of the heat insulating material and the oxygen generating agent, the heat insulating material and the other oxygen generating agent. A second support member supporting an end portion, the heat insulating material, and the first
Cylindrical housing accommodating the second support member and the second support member, a plate-shaped first cover member that covers the opening of the housing on the first support member side, and the first cover member And a plate-shaped second lid member that covers the opening of the housing on the side of the second support member and the ignition means that is inserted through the center of the first support member and is arranged to engage with the center of the first support member. And oxygen supply means provided on the second lid member, and oxygen generated by thermal decomposition of the oxygen generating agent by the operation of the ignition means passes through the heat insulating material and through the oxygen supplying means. In the oxygen generator for supplying to the outside, a plate-shaped vibration-proof member is provided between the first support member and the first lid member so as to engage at the central portion of the ignition means. An outer end of the first lid member and an inner end of the first lid member are engaged with the housing, One said vibration oxygen generator, characterized in that the outer end portion is adapted for coupling directly or via the housing and the inner end portion of the first cover member of the member. 2. The vibration-proof member has a shape that conforms to the shape of the first support member on the ignition means side.
The oxygen generator according to. 3. The first support member extends to the oxygen supply means side so as to cover the heat insulating material, and the oxygen supply side end of the first support member engages with the housing, The oxygen generator according to claim 1 or 2, wherein a cylindrical closed space is formed between the first support member and the housing. 4. The oxygen generator according to claim 1, wherein the vibration-proof member is integrally formed with the first support member. 5. A passage forming member, wherein an end portion of the first supporting member extends to the vicinity of the second supporting member and extends concentrically with the housing to the vicinity of the first supporting member. After the oxygen generated by the thermal decomposition of the oxygen generating agent passes through the heat insulating material, the space formed by the first supporting member and the passage forming member, the passage forming member and the housing are provided. The oxygen generation device according to claim 1 or 2, wherein the oxygen generation device is passed through the formed space and is supplied to the outside through the oxygen supply means. 6. The plurality of cutouts are provided at an end of the first support member, and the end is brought into contact with the passage forming member.
The oxygen generator according to. 7. A first ridge protruding radially outward is provided in the vicinity of an end of the first support member, and the first ridge contacts the inner circumference of the passage forming member. A second projecting ridge portion that is in contact with and near the end of the passage forming member and projects radially outwardly, and the second projecting ridge portion is in contact with the inner circumference of the housing. The oxygen generator according to claim 5 or claim 6. 8. The ignition means has a detonator support member having a detonator therein, and a tube body having a spring urging a hammer piston for colliding with the detonator. The oxygen generator according to any one of claims 1 to 7, wherein the detonator support member is integrally formed on the cylindrical body by caulking. 9. The oxygen supply means has a valve seat forming member and a valve body, and a substantially conical valve seat is formed at one end of the valve seat forming member, and the valve body is the valve. An annular sealing member that has a conical end portion that separates from and seats on a seat, and that seals the valve body and the valve seat when the valve body seats on the valve seat. Claims 1 to 8 provided
The oxygen generator according to. 10. The second lid member is coupled to the second support member directly or via a housing,
The oxygen generator according to any one of claims 1 to 9, wherein a filter is filled between the cover member and the second support member.