JP2010051458A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce an exhaust flow velocity by diffusing the exhaust, so as to suppress the stir-up of circumferential dust, and to firmly fix a diffusion member for diffusing the exhaust not to come off a frame shape member. <P>SOLUTION: A cleaner body 1 includes an exhaust outlet, which is formed between a case upper 8 and a case cover 9, so as to discharge the exhaust of an electric blower 4 to an external part. An exhaust frame member 13, where an exhaust downstream side is covered with a cloth material 22, is arranged in the exhaust outlet. In the exhaust frame member 13, a step part 22, which is projectingly formed toward an outer peripheral side at the exhaust downstream side position of an outer peripheral part opposing to the case upper 8 and the case cover 9, is held between the case upper 8 and the case cover 9. A part on the exhaust upstream side from the step part 22 of the exhaust frame member 13 is formed as the adhesion part 23 of the cloth material 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner that can disperse exhaust gas discharged from a vacuum cleaner body and reduce the flow rate of the exhaust gas.

  The vacuum cleaner includes a vacuum cleaner body including an electric blower and a dust collecting unit. When the electric blower is driven in the vacuum cleaner, air is sucked into the dust collecting part. The dust collecting unit is provided with a dust collecting filter, and dust is removed from the sucked air by the filter.

  In recent years, the suction efficiency of vacuum cleaners has improved. Along with this, the flow rate of air sucked by driving the electric blower has increased. The flow rate of air discharged from the vacuum cleaner body is increased, and the exhaust flow rate is also increased. It has been pointed out that the speed of exhaust gas increases, so that dust and the like on the floor rise, and dust and the like floating in the space cause allergies.

  As a method for suppressing the flow rate of the exhaust, a method for increasing the area of the exhaust port through which the exhaust is discharged has been proposed. And the structure which attaches the exhaust frame member which covered the exhaust downstream side with the cloth material to the exhaust port so that exhaust_gas | exhaustion is discharged | emitted uniformly from an exhaust port is proposed.

As the exhaust frame member, for example, a configuration described in JP 2003-219989 A has been proposed. In the configuration described in Japanese Patent Laid-Open No. 2003-219989, the outer periphery of the cloth material is fixed to an exhaust frame member attached to the exhaust port by welding or the like.
JP 2003-219989 A

  However, since the exhaust frame member constitutes a part of the appearance of the cleaner body, the structure becomes complicated, and there is a problem that it is difficult to apply the cloth material when the cloth material is fixed by welding. In order to reduce the exhaust flow rate, it is preferable to make the exhaust frame member large. However, if the exhaust frame member is made large, the cloth material will be wrinkled when it is rubbed by a hand or a wall surface. There is a problem that is easy to do.

  The present invention has been made in view of the above problems, and an object thereof is to provide a vacuum cleaner having a highly durable exhaust port.

  In order to solve the above problems, the present invention includes a vacuum cleaner body having an electric blower and a dust collecting chamber, and the vacuum cleaner body exhausts the exhaust of the electric blower to the outside between a first case and a second case. An exhaust frame member having a downstream side of the exhaust gas covered with a cloth material is disposed at the exhaust port, and the exhaust frame member is formed on an outer peripheral portion facing the first case and the second case. A stepped portion projecting toward the outer peripheral side at the exhaust downstream side position is sandwiched between the first case and the second case, and the exhaust upstream side portion from the stepped portion of the exhaust frame member is bonded to the cloth adhesive portion. It is characterized by that.

  According to this configuration, the exhaust discharged from the cleaner body is diffused by the exhaust frame member, and the exhaust flow rate is reduced to be discharged. Thereby, it can suppress that the dust distributed (deposited) around the cleaner main body is rolled up.

  Further, the exhaust frame member has the stepped portion sandwiched between the first case and the second case, and the cloth material is fixed to the frame-like member with the peripheral edge bonded to the bonding portion, so that the adhesive at the time of bonding Even if the coating amount varies, the cloth material can be prevented from peeling off from the frame-shaped member. Thereby, it is possible to suppress the exhaust gas from leaking through the gap where the cloth material is peeled off from the frame member, and it is possible to suppress the exhaust gas flow rate from being increased.

  Furthermore, when the first case, the second case, and the exhaust frame member are assembled, the adhesive portion is disposed at an invisible position on the appearance of the cleaner body. As a result, even when the main body of the vacuum cleaner is in contact with a wall, furniture, or the like, the cloth material does not come into direct contact with the bonding portion between the cloth material and the frame-like member, and the cloth material is prevented from coming off from the frame-like member. And deterioration of appearance can be suppressed.

  In the above configuration, a rib protruding toward the adhesive portion is formed at a contact portion of at least one of the first case and the second case with the exhaust frame member, and a tip of the rib is the cloth. You may hold down the material.

  Even if the adhesive force between the fabric material and the adhesive portion is weakened due to dispersion of adhesion, heat of exhaust, change with time, etc., because the fabric material is sandwiched between the rib and the adhesive portion, the fabric material has a frame shape. It can suppress that it slips out from a member, or falls. As a result, exhaust leakage can be suppressed and the exhaust flow rate can be stably reduced.

  The said structure WHEREIN: The matte processing and / or the ditch | groove may be formed in the said adhesion part. According to this structure, the contact area of an adhesion part and an adhesive agent can be enlarged. Thereby, it is possible to adhere | attach a cloth material and an adhesion part firmly, and it can suppress that a cloth material shifts | deviates from a frame-shaped member, or falls. As the adhesive, for example, an adhesive having a high viscosity such as hot melt can be widely used. By using an adhesive having a high viscosity, the adhesive can be prevented from penetrating into the cloth material.

  The said structure WHEREIN: The convex part which protrudes toward the said level | step-difference part may be formed in the part facing the said level | step-difference part of at least one of the said case lower or the said case cover. Since the convex portion is formed, the pressing force when the cloth material is sandwiched between the first case and / or the second case is increased, and the adhesive force between the cloth material and the bonding portion is weak as described above. In addition, it is possible to suppress the cloth material from being displaced from the frame-shaped member or falling off.

  A convex portion may be formed at the tip of the stepped portion. As in the case where the first case and / or the second case is formed with the convex portion, the cloth material can be prevented from being displaced or dropped.

  An example of the convex portion is a sawtooth shape in which the amount of protrusion increases from the exhaust downstream side of the exhaust frame member toward the exhaust upstream side. As described above, since the convex portion is formed in a sawtooth shape, the portion of the fabric material that is in contact with the convex portion is difficult to move to the exhaust downstream side, and the fabric material is prevented from shifting or sagging. be able to.

  In the above configuration, when a convex portion is formed on the first case and / or the second case, the convex portion formed on the first case and / or the second case at the tip of the stepped portion, A recess that can be accommodated together with the cloth material may be formed. Since the frictional force is increased by being sandwiched between the convex portion and the concave portion, it is possible to suppress the cloth material from being displaced from the frame-shaped member.

  In the said structure, when the convex part is formed in the said level | step-difference part, the said convex part can be accommodated with the said cloth material in the part facing the said level | step-difference part of a 1st case and / or a 2nd case. A recess may be formed. Similarly to the above-described case, it is sandwiched between the convex portion and the concave portion, the frictional force becomes strong, and the cloth material can be prevented from being displaced from the frame-shaped member.

  The said structure WHEREIN: The buffer member which has air permeability higher than the said cloth material may be arrange | positioned between the frame-shaped member and the cloth material, and may be fixed to the said frame-shaped member. Since the buffer member is attached, when the cleaner body moves, the impact of the exhaust frame member on the frame-like member due to the contact of the exhaust frame member with the wall or the leg of the furniture can be reduced. It can suppress that a frame-shaped member is damaged by an impact. As the cloth material and the buffer member, those made of a flame-retardant material can be employed.

  According to the present invention, it is possible to provide an electric vacuum cleaner that can reduce exhaust flow velocity by diffusing exhaust gas and suppress surrounding dust and the like from rising.

The best embodiment of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a side view of a cleaner body according to the present invention, FIG. 2 is a side sectional view of the cleaner body shown in FIG. 1, and FIG. 3 is a cross-sectional view of the cleaner body shown in FIG. FIG. 4 is a perspective view seen from the front side in a state in which the lid of the cleaner body shown in FIG. 1 is opened.

  The vacuum cleaner main body 1 has a dust collection chamber 3 that can be freely opened and closed by a lid 2 at the front, and an electric blower 4 is accommodated at the rear. A dust collection container 5 is detachably accommodated in the dust collection chamber 3. A suction part 6 communicating with the dust collecting chamber 3 is formed in the front part of the cleaner body 1, and a hose (not shown) is detachably connected to the suction part 6. A floor suction tool is detachably connected to the hose via an extension pipe (not shown).

  Each part of the cleaner body 1 will be described in detail. As shown in FIGS. 1 to 4, the vacuum cleaner main body 1 includes a case lower 7 disposed at the lower part, a case upper 8 attached to the upper part of the case lower 7, and a case attached to the upper part of the case upper 8. A cover 9 and a cover member 10 mounted on the upper portion of the case cover 9 are provided. The electric blower 4 is accommodated in a space surrounded by the case lower 7 and the case upper 8. A motor cover 11 covers the electric blower 4 and has an upper opening 12 communicating with a filter housing chamber 17 of an exhaust filter 18 described later at the upper part. Between the case upper 8 (first case) and the case cover 9 (second case), an exhaust port for exhausting the exhaust of the electric blower 4 to the outside is formed. An exhaust frame member 13 is sandwiched between the case cover 9 and the case cover 9.

  A support portion 14 is formed on the outer periphery of the case upper 8 so that the lower portion of the exhaust frame member 13 is supported on the upper surface, and a presser that holds the upper portion of the exhaust frame member 13 on the lower portion is provided on the outer periphery of the case cover 9. A portion 15 is formed, and the exhaust frame member 13 is sandwiched and fixed between the support portion 14 of the case upper 8 and the pressing portion 15 of the case cover 9.

  An exhaust chamber 16 is formed in a space surrounded by the outer periphery of the case upper 8, the support portion 14 of the case upper 8, the pressing portion 15 of the case cover 9, and the exhaust frame member 13.

  A filter storage chamber 17 communicating with the opening of the motor cover 11 is formed in a space surrounded by the case upper 8, the case cover 9, and the cover member 10, and the filter storage chamber 17 is formed in a ring shape. A pleated exhaust filter 18 is housed. The filter storage chamber 17 communicates with the exhaust chamber 16. The exhaust from the electric blower 4 is purified by the exhaust filter 18 to reach the exhaust chamber 16, and is exhausted to the outside of the cleaner body 1 through the exhaust frame member 13. It has become so.

  The details of the exhaust frame member 13 which is the main part of the present invention will be described with reference to the drawings. 5 is a front view of the exhaust frame member 13 provided in the cleaner body 1 shown in FIG. 1, FIG. 6 is a plan view of the exhaust frame member 13 shown in FIG. 5, and FIG. FIG. 2 is an enlarged cross-sectional view of a state in which is attached to the cleaner body 1.

  The exhaust frame member 13 includes a frame-shaped frame-shaped member 19 through which air passes, and a cloth material 20 arranged so as to cover a portion downstream of the air when air passes through the frame-shaped member 19. Yes. The frame-shaped member 19 is an integrally molded product of resin, and a plurality of vent holes 21 are formed as shown in FIGS. 5, 6, and 7. The vent hole 21 is not limited to the embodiment, but is formed in a square shape. The vent holes 21 are arranged in the vertical and horizontal directions. In FIG. 4, the air holes 21 are arranged side by side in the horizontal direction, and are shifted in the vertical direction. Since the vertical frame is formed so as to be shifted as described above, the strength of the frame-shaped member 19 can be ensured.

  Reference numeral 22 denotes a stepped portion formed in the outer peripheral portion of the frame-shaped member 19 facing the support portion 14 of the case upper 8 and the pressing portion 15 of the case cover 9 so as to protrude toward the outer peripheral direction. Formed in position. A bonding portion 23 to which the cloth material 20 is bonded is formed at a portion upstream of the step portion 22 in the outer peripheral portion of the frame-shaped member 19, and the bonding portion 23 has a so-called satin finish with a rough surface. Processing has been applied. In addition, a groove 24 is formed in the bonding portion 23 in the longitudinal direction (circumferential direction).

  The cloth material 20 is disposed so as to cover the downstream side of the air flow of the frame-shaped member 19 and is attached to the frame-shaped member 19. Here, a cloth material woven with flame retardant fibers is used as the cloth material 20. Moreover, in order to improve cleanliness, the fabric material 20 may be subjected to antibacterial processing. Further, in the present embodiment, urethane foam is used as the buffer member 25 between the frame-shaped member 19 and the fabric material 20 as will be described later. It is preferable to apply processing.

  The cloth material 20 is preferably non-stretchable or difficult to stretch in order to secure the strength of the affixing and to prevent the occurrence of a problem that the cloth material 20 is displaced from the frame-like member 19 or floats. However, since the frame-shaped member 19 that constitutes a part of the exterior of the vacuum cleaner body 1 is formed of a curved surface and is formed in a complicated shape, when a material that does not stretch or is not easily stretched is used as the cloth material 20, It becomes difficult to apply and wrinkles will occur, resulting in variations in the finish of the product.

  Therefore, it is preferable that the cloth material 20 is not easily stretched in the longitudinal direction when the cloth material 20 is attached to the frame-shaped member 19 and is stretched in the lateral direction. Since it is difficult to extend in the longitudinal direction, the deformation amount of the cloth material 20 can be suppressed, and variations in the finished product can be suppressed. Further, since it extends in the short direction, even if the shape of the frame-shaped member 19 is complicated, the cloth material 20 can be easily attached to the frame-shaped member 19 and the cloth material 20 is attached. The fabric material is more difficult to wrinkle.

  The cloth material 20 is adhered to the step portion 22 and the peripheral edge portion of the cloth material 20 is bonded to the bonding portion 23 with an adhesive Ah. A concave groove 24 is formed in the adhesive portion 23, and the adhesive Ah flows into the concave groove 24, so that the contact area between the adhesive Ah and the adhesive portion 23 increases, and accordingly, the adhesive portion 23 and the cloth material 20 The adhesive strength can be increased. Furthermore, since the satin treatment is applied to the bonding portion 23, the bonding strength between the bonding portion 23 and the cloth material 20 can be further increased.

  As the adhesive Ah, a hot-melt adhesive having a high viscosity is used. By using the hot melt adhesive, it is possible to suppress the adhesive from penetrating into the step portion 22 side of the cloth material 20. The step portion 22 comes into contact with the support portion 14 of the case upper 8 and the presser 15 of the case cover 9 via the cloth material 20, but when the adhesive soaks into the step portion 22 portion of the cloth material 20, the adhesive soaks. The contact state between the support portion 14 and the pressing portion 15 is different between the left portion and the portion that is not soaked, and there is a possibility that a gap through which air leaks is formed, and the adhesive soaks into the stepped portion 22 side of the fabric material 20. By preventing this, the formation of gaps can be suppressed. The adhesive is not limited to a hot melt adhesive, and an adhesive having a high viscosity and low infiltration can be widely used.

  As shown in FIG. 7, a buffer member 25 is attached between the cloth material 20 and the frame-shaped member 19. The buffer member 25 is bonded to the frame-shaped member 19 with an adhesive at an appropriate number of locations, and the buffer member 25 is prevented from moving. As described above, since the buffer member 25 is attached, the shock can be absorbed by the buffer member 25 even when the cleaner body 1 comes into contact with the wall surface, the legs of the furniture, and the like. It is possible to prevent both the object such as the wall surface that the machine body 1 and the cleaner body are in contact with from being damaged or damaged. As the buffer member 25, here, foamed urethane having flame retardancy is employed. Moreover, it is not limited to this, What is formed with the substance which has a shock absorption property and can let the flow of air pass is preferable. The adhesive Ah that bonds the frame-shaped member 19 and the cloth material 20 and the adhesive that bonds the frame-shaped member 19 and the buffer member 25 may be the same or different.

  Further, a plurality of engaging claw portions 26 that are inserted into engaging portions (not shown) formed on the support portion 14 protrude from the outer peripheral portion of the frame-shaped member 19 facing the support portion 14. Is formed. In addition, an engaging portion 27 that engages with the inner side of the presser portion 15 is formed to project from a portion of the outer periphery of the frame-shaped member 19 that faces the presser portion 15.

  The assembly of the exhaust frame member 13 to the cleaner body 1 is performed as follows. First, in a state where the case upper 8 and the case cover 9 are disassembled, the engaging claw portion 26 is inserted into an engaging portion (not shown) formed on the support portion 14 of the case upper 8, and the exhaust frame member 13 is inserted. Is disposed on the upper portion of the support portion 14. Then, the engaging portion 27 is engaged with the inside of the pressing portion 14 of the case cover 9, and the exhaust frame member 13 is pressed by the case cover 9. As shown in FIG. 7, in the exhaust frame member 13, the upper and lower end portions of the stepped portion 22 are sandwiched between the support portion 14 and the pressing portion 15 via the cloth material 20.

  By assembling in this way, since the bonding portion 23 is arranged inside the cleaner body 1, the adhesion end face between the frame-shaped member 19 and the cloth material 20 becomes invisible and the design of the cleaner body 1 is improved. Can also be increased. Moreover, since the adhesion end surface of the frame-shaped member 19 and the cloth material 20 is disposed inside the cleaner body 1, it is possible to suppress the adhesion end surface from coming into contact with the wall surface or the legs of the furniture. It can suppress that the adhesion part of 20 peels from the frame-shaped member 19. FIG.

  Further, since the exhaust frame member 13 has the upper and lower end portions of the step portion 22 sandwiched between the support portion 14 and the pressing portion 15 via the cloth member 20, the force applied to the cloth material 20 is the bonding portion. Therefore, it is difficult to join the bonded portion to the frame 23 and the bonded portion of the cloth material 20 can be prevented from peeling off from the frame-shaped member 19.

  Below, operation | movement of a vacuum cleaner is demonstrated. First, when the electric blower 4 is driven, air is sucked. As a result, the air sucked from the suction part 6 flows into the dust collecting case 5 communicated with the suction part 6. The dust collecting case 5 is provided with a filter, and when the air passes through the filter, dust contained in the air is removed by the filter. Dust is accumulated in the dust collecting case 5 and air is sucked into the electric blower 4.

  The air sucked into the electric blower 4 cools the electric blower 4, is led from the upper opening 12 of the motor cover 11 to the filter storage chamber 18, and passes through the exhaust filter 17. When the air passes through the exhaust filter 17, fine particles such as dust are more reliably filtered.

  The air that flows out from the exhaust filter 17 flows into the exhaust chamber 16 and diffuses into the exhaust chamber 16. When the air passes through the exhaust frame member 13, the air is diffused by the exhaust frame member 13, the flow velocity is made uniform, the speed is reduced, and the air is exhausted outside the cleaner body 1.

Thus, since the exhaust of the cleaner body 1 is guided to the exhaust chamber 16 having a large area, the exhaust pressure can be reduced and the exhaust wind speed can be reduced. In addition, by using the cloth material 20, fine holes in the texture of the cloth material 20 serve as an outlet for exhaust, and the exhaust area increases, so that the exhaust speed can be reduced. Thereby, it is possible to suppress the dust around the cleaner body 1 from being raised by the exhaust gas discharged from the cleaner body 1. Moreover, since the exhaust gas flow velocity can be reduced, it is possible to reduce wind noise and reduce noise generated when the cleaner body 1 is in operation.
(Second Embodiment)
Another example of the electric vacuum cleaner according to the present invention will be described with reference to the drawings. FIG. 8 is an enlarged cross-sectional view of a state in which the exhaust frame member according to the present invention is attached. The vacuum cleaner main body 1 shown in FIG. 8 has the same configuration as the vacuum cleaner main body 1 of the first embodiment shown in FIG. 1 and the like except that the case upper 8b and the case cover 9b are different. The same reference numerals are given. Moreover, the detailed description regarding the part of the same structure as the cleaner body 1 of 1st Embodiment is abbreviate | omitted.

  As shown in FIG. 8, an upper rib 29 protruding toward the outer peripheral portion of the frame-shaped member 19 is formed on the support portion 14 of the case upper 8 b. Further, a cover rib 29 protruding toward the outer peripheral portion of the frame-shaped member 19 is formed on the pressing portion 15 of the case cover 9b.

  The assembly of the exhaust frame member 13 to the cleaner body 1 is performed as follows. First, in a state where the case upper 8b and the case cover 9b are disassembled, the engaging claw portion 26 is inserted into an engaging portion (not shown) formed on the support portion 14 of the case upper 8b, and the upper rib 28 is The exhaust frame member 13 is disposed on the upper portion of the support portion 14 so as to hold down the cloth material 20 bonded to the bonding portion 23. Then, the case cover 9 b is arranged so that the engaging portion 28 is engaged with the inside of the pressing portion 15 of the case cover 9 b and the cover rib 29 presses the cloth material 20 bonded to the bonding portion 23. Then, the assembly is completed by fixing the case upper 8b and the case cover 9b with screws or the like.

  In the exhaust frame member 13, the upper and lower tip portions of the step portion 22 are sandwiched between the support portion 14 and the pressing portion 15 via the cloth member 20. Therefore, it is possible to prevent the bonded portion of the cloth material 20 from being peeled off from the frame-shaped member 19.

  In addition, since the upper rib 28 and the cover rib 29 are sandwiched between the bonding portions 23 of the exhaust frame member 13 via the cloth material 20, the bonding between the bonding portion 23 and the cloth material 20 is insufficient from the beginning. Even if the adhesion is weak due to the heat of exhaust or changes over time, the exhaust frame member 13 has the upper and lower end portions of the step portion 22 via the cloth member 20 and the support portion 14 and the pressing portion 15. The cloth material 20 can be further prevented from being peeled off in combination with being sandwiched between the two.

Further, since the upper rib 28 and the stepped portion 22 are overlapped and the cover rib 29 and the stepped portion 22 are overlapped, the space between the case upper 8b and the exhaust frame member 13 and between the case cover 9b and the exhaust frame body 13 are overlapped. It is possible to more reliably suppress exhaust leakage from between. Note that either the upper rib 28 or the cover rib 29 may be formed.
(Third embodiment)
Still another example of the electric vacuum cleaner according to the present invention will be described with reference to the drawings. FIG. 9 is an enlarged cross-sectional view of the attachment portion of the exhaust frame member according to the present invention. Except for the difference in the stepped portion of the exhaust frame member 4c, it has the same configuration as the main body of the first embodiment shown in FIG. 1 and the like, and substantially the same parts are denoted by the same reference numerals. Moreover, the detailed description regarding the part of the same structure as the cleaner body 1 of 1st Embodiment is abbreviate | omitted.

  A convex part 30 having a sawtooth cross section is formed at the tip of the step part 22, and a concave part 31 into which the convex part 30 is inserted together with the cloth material 20 is formed in the pressing part 15. Since the convex portion 30 has a sawtooth shape in cross section, the convex portion 30 bites into the cloth material 20 when the cloth material 20 is attached to the frame-shaped member 19. Thereby, it can suppress that the fabric material 20 peels from the frame-shaped member 19. FIG. Further, since the protrusion 30 is inserted into the recess 31 together with the cloth material 20, even if a force that pulls the cloth material 20 to the exhaust downstream side due to the exhaust pressure or a force in the lateral direction is applied, the force is adhered to the cloth material 20. It becomes difficult to add to the part, and peeling of the cloth material 20 can be suppressed.

  Furthermore, since the convex part 30 has a shape that rises toward the exhaust upstream side, the cloth material 20 is pulled to the exhaust downstream side by a wall surface or the like due to exhaust pressure or movement with weak adhesion. However, it is possible to suppress the cloth material 20 from being caught by the convex portion 30 and being peeled off from the frame-shaped member 19.

  FIG. 10 is an enlarged cross-sectional view showing another example of the convex portion 30 shown in FIG. As shown in FIG. 10, a convex portion 32 is formed at the tip of the step portion 22 of the exhaust frame member 13d, and the convex portion 32 is inserted into the pressing portion 15 of the case cover 9d together with the cloth material 20. 33 is formed.

  When the case cover 9d is attached to the upper side of the exhaust frame member 13d, the convex portion 32 is pushed into the concave portion 33 together with the cloth material 20. As described above, since the cloth material 20 is sandwiched between the convex portion 32 and the concave portion 33, even if the cloth material 20 is pulled outward, a problem that the cloth material 20 is displaced or peeled off hardly occurs.

In addition, the convex part 32 may be formed in the part facing the support part 14, and the recessed part engaged with the convex part 32 may be formed in the support part 14. FIG. The convex part and the concave part may be formed intermittently or may be formed continuously. Moreover, as a convex part, a rod-shaped thing like a pin and a boss | hub may be sufficient. Furthermore, although the convex part is illustrated as the step part and the concave part is formed in the support part 14 and / or the holding part 15, the present invention is not limited thereto, and the concave part is provided in the step part 22. And the convex part may be formed in the holding | suppressing part 15 and / or.
(Fourth embodiment)
Another example of the electric vacuum cleaner according to the present invention will be described with reference to the drawings. FIG. 11 is a front view showing another example of the frame-shaped member of the exhaust frame member used in the vacuum cleaner according to the present invention, and FIG. 12 is an enlarged view when the frame-shaped member shown in FIG. 11 is cut in the lateral direction. It is sectional drawing. In the vacuum cleaner main body 1 of the first embodiment, the exhaust gas flows into the exhaust chamber 16 from the exhaust filter 13 disposed at the upper rear portion, flows through the exhaust chamber 16 from the rear to the front, and the vent hole 21 of the frame-shaped member 19. To the outside of the cleaner body 1 through the cloth material 20 as exhaust.

  At this time, the air is diffused in the exhaust chamber 16 and is discharged at a reduced flow rate by the cloth material 20. However, in the exhaust chamber 16, there is a portion where the flow rate of the exhaust air increases on the rear side of the cleaner body 1 where the electric blower 2 is located, and the flow velocity of the exhaust gas partially passing through the exhaust frame member 4 is increased. The problem that the exhaust winds up the fine particles around the cleaner body 1 occurs.

  Therefore, as in the exhaust frame member 13e shown in FIGS. 11 and 12, the air flows into the vent hole 21e where the air flowing from the filter storage chamber 18 into the exhaust chamber 16 is relatively concentrated on the exhaust frame member 13e. An exhaust guide portion 34 for sending the exhaust chamber 16 forward is formed. The exhaust frame member 13e has the same configuration as that of the exhaust frame member 4 except that the exhaust guide portion 34 is formed in the vent hole 21e where the exhaust is relatively concentrated. Are denoted by the same reference numerals.

  The exhaust guide portion 34 is formed so as to close the rear side of the vent hole 21e when the exhaust frame member 13e is attached to the cleaner body 1, and the exhaust guide portion 34 is a frame-shaped member 19 of the exhaust frame member 13e. The exhaust upstream surface is formed to be smooth, and the exhaust guide portion 34 is formed so that the thickness of the exhaust guide portion 34 is thinner than the depth of the vent hole 21e in the exhaust flow direction. By forming the exhaust guide portion 32e to be thin, the vent hole 21e has a shape in which the opening area on the upstream side of the exhaust is small and the area on the downstream side of the exhaust is abruptly increased. As the flow rate to be reduced is reduced, the flow velocity when flowing out from the exhaust frame member 13e is rapidly reduced.

  Since the exhaust guide portion 34 is formed as described above, when the air flowing into the exhaust chamber 16 from the filter storage chamber 18 collides with the exhaust frame member 13e, a part of the exhaust guide portion 34 is formed. The remaining air flows out from the gap between the vent holes 21e, and the remaining flow is bent by the exhaust guide portion 34, and flows forward along the upstream surface of the frame member 19e. In addition, since the exhaust guide portion 34 is smoothly connected to the exhaust upstream surface of the frame member 19e, turbulence (turbulence, vortex) occurs when air flows along the exhaust upstream surface of the frame member 19e. ) Is unlikely to occur.

  Thereby, the air flowing along the exhaust upstream side of the exhaust frame member 13e in the exhaust chamber 16 stably flows in front of the cleaner body 1. The air that has passed through the vent hole 21 in which the vent hole 21e and the exhaust guide portion 34 are not formed is diffused by the cloth material 20, and the flow velocity is further reduced, and the air is discharged outside the cleaner body 1 as exhaust gas. Thereby, it can suppress that the exhaust_gas | exhaustion from a cleaner main body raises the dust around a cleaner main body. Further, since the exhaust flow rate is low, the level of noise due to exhaust is also low.

  It can be used for a vacuum cleaner that can reduce noise and prevent dust, dust, dust, and the like distributed around by exhaust air from being rolled up.

It is a side view of the cleaner body concerning the present invention. It is a sectional side view of the cleaner body shown in FIG. It is sectional drawing when the cross section which cut | disconnected the vacuum cleaner main body shown in FIG. 1 in the horizontal direction is seen from the front. It is the perspective view seen from the front side of the state which opened the cover part of the cleaner body shown in FIG. It is a front view of the exhaust frame member with which the cleaner body shown in FIG. 1 is equipped. It is a top view of the exhaust frame member shown in FIG. It is an expanded sectional view in the state where the exhaust frame member was attached. It is an expanded sectional view in the state where the exhaust frame member concerning the present invention was attached. It is an expanded sectional view of the attachment part of the exhaust frame member concerning this invention. It is an expanded sectional view which shows the other example of the convex part shown in FIG. It is a front view which shows the other example of the exhaust frame member used for the vacuum cleaner concerning this invention. It is an expanded sectional view when the exhaust frame member shown in FIG. 11 is cut | disconnected in a horizontal direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Cover part 3 Dust collection chamber 4 Electric blower 5 Dust collection case 8 Case upper 9 Case cover 11 Motor cover 13 Exhaust frame member 14 Support part 15 Presser part 17 Exhaust filter 19 Frame-shaped member 20 Cloth material 21 Vent 22 Stepped portion 23 Adhesive portion 24 Concave groove 25 Buffer member 26 Engaging claw portion 27 Engaging portion 28 Upper rib 29 Cover rib 30 Convex portion 31 Concave portion 32 Convex portion 33 Concave portion

Claims (10)

It has a vacuum cleaner body with an electric blower and a dust collection chamber,
The vacuum cleaner main body forms an exhaust port for exhausting the exhaust of the electric blower to the outside between the first case and the second case, and the exhaust is covered with a cloth material on the exhaust downstream side. Arrange the frame member,
The exhaust frame member sandwiches a stepped portion formed between the first case and the second case at the exhaust downstream side position of the outer peripheral portion facing the first case and the second case, between the first case and the second case, A vacuum cleaner characterized in that a portion upstream of the exhaust gas frame from the step portion of the exhaust frame member is used as an adhesive portion of the cloth material. A rib that protrudes toward the adhesive portion is formed in a contact portion of at least one of the first case and the second case with the exhaust frame member,
The vacuum cleaner according to claim 1, wherein a tip of the rib presses the cloth material.   The vacuum cleaner according to claim 1 or 2, wherein the exhaust frame member is subjected to a satin finish on at least a surface of the adhesive portion.   The vacuum cleaner according to any one of claims 1 to 3, wherein a concave groove that can be filled with at least a part of an adhesive is formed in the adhesive portion.   The convex part which protrudes toward the said level | step-difference part was formed in the part facing the said level | step-difference part of at least one of the said 1st case or the 2nd case. The vacuum cleaner described.   6. The electricity according to claim 5, wherein a convex portion formed in the first case or the second case is formed at a tip portion of the step portion so as to accommodate the cloth material together. Vacuum cleaner.   The vacuum cleaner according to any one of claims 1 to 4, wherein a convex portion is formed at a tip portion of the stepped portion.   8. The concave portion capable of accommodating the convex portion and the cloth material therein is formed in a portion of the first case or the second case facing the convex portion. Electric vacuum cleaner.   The vacuum cleaner according to any one of claims 5 to 8, wherein the convex portion has a sawtooth shape in which a protruding amount increases from the exhaust downstream side toward the exhaust upstream side.   The electric cleaning according to any one of claims 1 to 9, wherein a cushioning member having a higher air permeability than the cloth material is disposed between the exhaust frame member and the cloth material. Machine.

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