JP2009066330A - Suction port body of vacuum cleaner, and vacuum cleaner with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a cleaning efficiency is degraded since a vibrating plate is vertically moved between a surface to be cleaned of bedclothes or the like and a suction port body bottom surface to clamp foreign matters between the vibrating plate and the suction port body bottom surface, so that the vertical vibration of the vibrating plate is impared. <P>SOLUTION: In the vacuum cleaner for sucking the cleaning object of the surface to be cleaned, the suction port body comprises a lower case with an opening facing the surface to be cleaned, an upper case provided in the lower case, a free joint communicated and connected to the main body side, and wheels supporting the upper and lower cases, and a vibration member for hitting the surface to be cleaned and a driving part for vibrating the vibration member are arranged inside. The vibration member is provided with a suction inlet and is made detachable from the driving part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mouthpiece of a vacuum cleaner and a vacuum cleaner including the same.

  Conventionally, for example, there is a patent document (Japanese Patent No. 3094012) as a mouthpiece for bedding of a vacuum cleaner. It has been devised that a vibration generating means including a vibration member is provided inside the mouthpiece, and the vibration member and a vibration plate that directly hits the bedding are connected. In addition, it has been devised that a bottom support plate is provided at the lower part of the mouthpiece, in which a portion that directly contacts the surface to be cleaned such as bedding can be attached and detached.

  Further, as shown in Patent Document 2 (Japanese Utility Model Publication No. 51-162551), a fan that rotates by a suction force and a cam that rotates integrally with the fan are provided, and the rotational movement of this cam is transmitted to the diaphragm, Some have been devised to reciprocate this diaphragm in the vertical direction.

Japanese Patent No. 3094012 Japanese Utility Model Publication No. 51-162551

  As shown in Patent Document 1, a diaphragm that directly strikes bedding is formed of a plate-like member that is long in the longitudinal direction, and is provided in front of the suction port. According to this configuration, hair, lint, or the like may be caught by the plate-like diaphragm when sucked into the suction port. In addition, since the diaphragm moves up and down between the surface to be cleaned such as bedding and the bottom surface of the mouthpiece, foreign matter is caught between the diaphragm and the bottom surface of the mouthpiece, and the vertical vibration is impaired and the cleaning efficiency is lowered. Sometimes.

  Further, since the diaphragm is in direct contact with the surface to be cleaned such as bedding, dust is likely to accumulate and dirt is likely to adhere. Therefore, although the diaphragm is to be cleaned, the disassembly and assembly of the diaphragm is not described, and only mentions that it has a detachable bottom support plate at the bottom of the mouthpiece. . Therefore, there is a problem that it is difficult to remove the dirt adhering to the diaphragm.

  As shown in Patent Document 2, the diaphragm is supported between the main body case and the bumper via a compression spring. When the diaphragm moves from the lower position to the upper position, a space is created between the bumper and the diaphragm. There may be a case where a problem such as a decrease occurs.

  In addition, although the method for fixing the diaphragm is not described, in order to remove the above-mentioned clogging, the structure is such that when the bumper is removed, the compression spring is removed in addition to the diaphragm, and the work of attaching and removing is troublesome. Problems can also be considered.

  An object of the present invention is to provide a vacuum cleaner that solves the above-mentioned problems, can keep the surface to be cleaned such as bedding hygienic, and has improved cleaning efficiency.

  The present invention includes a vacuum cleaner body including an electric blower and a dust collecting part, a suction port having an opening to a surface to be cleaned, and a pipe line connecting the dust collecting part of the cleaner body, and the electric blower In the vacuum cleaner that sucks the cleaning target of the surface to be cleaned together with the outside air near the suction port from the suction port to the dust collecting portion, the suction body has a lower case having an opening facing the surface to be cleaned, An upper case provided in the lower case, a universal joint connected in communication with the main body side, a wheel that supports the upper and lower cases, a vibration member that strikes the surface to be cleaned, and a drive unit that vibrates the vibration member The vibration member has an air inlet, and can be detached from the drive unit.

  ADVANTAGE OF THE INVENTION According to this invention, the vibration member which hits bedding directly can be attached or detached freely, the dirt adhering to a vibration member can be removed easily, and the vacuum cleaner excellent in the maintainability and the hygiene aspect can be provided.

Example 1
A configuration of a mouthpiece according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3.

  The perspective view seen from the bottom face direction of the mouthpiece for bedding which concerns on FIG. 1 at one Example of this invention, and the perspective view seen from the upper surface in FIG. 2 are shown. The bedding mouthpiece 15 is configured by an upper case 16 and a lower case 17 and is supported by a front wheel 18 and a rear wheel 20. The front edge of the lower case 17 is curved with respect to the traveling direction so as not to hinder the traveling. The upper case 16, the lower case 17, the front wheel 18, and the rear wheel 20 are made of synthetic resin.

  The external view of the vacuum cleaner which concerns on FIG. 3 at one Example of this invention is shown. The vacuum cleaner main body 1 has a built-in electric blower (not shown) for generating the intake air necessary for collecting the bedding mouthpiece 15 at the rear, and a dust collection chamber (see FIG. 1) for collecting dust at the front. The vacuum cleaner body with a built-in (not shown), the hose 2 is connected to the vacuum cleaner body 1 and is formed so as to be flexibly movable, and the hand operating part 3 is connected to the hose 2 to connect the vacuum cleaner body 1 The hand operating unit 3 includes a switch for controlling the electric suction port 52 and has a flow path (not shown) communicating with the hose 2 and the extension pipe 4. In addition, the hose 2, the hand operating section 3, and the extension pipe 4 incorporate a power supply line (not shown) that supplies electricity to the bedding mouthpiece 15.

  A universal joint tube 8 is connected to the rear of the bedding mouthpiece 15 at the central portion in the left-right (width) direction, and the terminal 12 of the universal joint tube 8 is connected to the AC from the main body via the hand operation unit 3. Voltage is supplied. The universal joint pipe 8 has one end connected to the mouthpiece for bedding 15 so as to be rotatable, and a first connecting pipe 63 rotatable from a substantially horizontal state to a substantially vertical state with respect to the surface to be cleaned; One end is connected to the other end of the first connecting pipe 63 so as to be rotatable, and has a second connecting pipe 64 that is rotatable in the left-right direction with respect to the bedding mouthpiece 15. The extension pipe 4 is connected to the other end of the second connection pipe 64. The universal joint pipe 8 has a function that allows the extension pipe 4 to be tilted in the left-right direction of the bedding mouthpiece 15 in a state where the extension pipe 4 is substantially perpendicular to the surface to be cleaned. . For this reason, by twisting in the left-right direction of the hand operation unit 3, the bedding mouthpiece 15 is rotated approximately 90 degrees in the left-right direction, and the cleaning is performed with the left-right direction of the bedding mouthpiece 15 in the moving direction. The bedding mouthpiece 15 can be moved along the side of the wall, or the bedding mouthpiece 5 can be inserted into a narrow gap for cleaning.

  When cleaning bedding, it may be necessary to put a futon on the floor and apply a vacuum cleaner, or to apply a vacuum cleaner to the bedding on the bed, or to apply a vacuum cleaner with the futon on the veranda. It is done.

  In the case of vacuuming with a futon on the floor, or in the case of vacuuming the bedding on the bed, the bedding mouthpiece 15 may be inserted into the extension tube 4, or may be directly attached to the hand control unit 3, It is desirable that the operating range of the universal joint pipe 8 is large.

  In particular, when a vacuum cleaner is applied in a state where the futon is dried on the veranda, it is necessary to apply the vacuum cleaner to the futon outside the veranda with the universal joint tube 8 in a substantially horizontal state with respect to the futon. In the present embodiment, since the universal joint pipe 8 is provided, the universal joint pipe 8 can be operated to a substantially horizontal surface to be cleaned. As a result, the cleaner can be put on without taking an unreasonable posture.

  Further, the bottom surface of the lower case 17 is set to be about 20 mm higher than the lowest point of the front wheel 18. This is because when cleaning the bedding or the like, if the distance from the lowest point of the front wheel 18 to the bottom surface of the lower case 17 is short, the bedding will not go into the front edge.

  The internal configuration of the bedding mouthpiece 15 will be described with reference to FIG. On the lower case 17, springs 22 are installed on both sides of the motor 26, the cam-equipped gear 28, and the cam-equipped gear 28, and the motor cover 21 is mounted. The vibrator 24 and the vibrator spring 23 are inserted from above the motor cover 26 and fixed to the motor cover 21 by the spring retainer 19. A substantially rectangular opening 32 for attaching the beater 47 is formed on the surface to be cleaned of the lower case 17. The beater 47 is attached from the surface to be cleaned of the lower case 17 and is joined to the vibrator 24. The shape of the opening 32 depends on the shape of the beater 47 and may be substantially circular or polygonal.

  As shown in FIG. 5, the shaft 35 is press-fitted into the shaft hole 61 of the vibrator 24. The shaft 35 is knurled around the shaft so that the shaft 35 does not rotate after press-fitting. A washer 36 and a bearing 37 are inserted into the vibrator 24 into which the shaft 35 is press-fitted. Further, slide ribs 38 are provided horizontally in the direction in which the vibrator 24 is inserted. This is provided for smooth movement of the vibrator 24.

  In the vibrator 24, an arm portion 39a is raised from between the central support portion 39c and the side support portion 39d that support the beater 47, and between the central support portion 39c and the arm portion 39a, and between the side support portion 39d and the arm portion 39a. A gap 40 is formed between them, and a knob portion 39b and a fixing claw 39 provided at the tip of the arm portion 39a are provided and coupled to the beater 47.

  The beater 47 shown in FIG. 6 is a view as seen from the surface to be cleaned, and a number of suction ports 44 are provided on the bottom surface of the rectangular container. The dust passes through the suction port 44 and is conveyed to the cleaner body 1. Further, the surface to be cleaned of the beater 47 is provided with a plurality of concave and convex portions 41 in the longitudinal direction. This is to secure a suction flow path. Consider the case where the beater 47 is vibrating and moving in the direction of hitting a futon. When the bottom surface of the beater 47 is flat and has a flat surface, the suction port 44 on the beater 47 is uniformly blocked by the futon. However, since the uneven portion 41 is provided on the bottom surface of the beater 47 as in the present embodiment, the suction port 44 is gradually closed, so that it is easy to secure a flow path. For this reason, dust collection performance can be improved. Further, since the futon is gradually attracted to the suction port 44, there is an effect of improving operability. In this embodiment, the concavo-convex portion 41 is provided, but the same effect can be obtained by other methods such as raising ribs, randomly providing the concavo-convex portion, and providing the concavo-convex portion in the horizontal direction.

  The beater 47 can be replaced. FIG. 7 shows a cross-sectional view of the coupling state of the vibrator 24 and the beater 47. The arm portion 39 a rising from the vibrator 24 is inserted into the central opening 43 of the beater 47, and the fixing claw 39 provided at the tip of the arm portion 39 a is fitted into the step portion 43 a of the central opening 43. When removing the beater 47 with one hand and applying force in the center direction with the finger of the other hand, the beater 47 is released from the stepped portion 43a of the central opening 43. it can. On the other hand, when attaching, the center opening 43 of the beater 47 can be attached simply by pushing it into the arm 39a of the vibrator 24.

  Further, the arm portion 39a is raised on the vibrator 24 from between the central support portion 39c and the side surface support portion 39d that support the beater 47, and between the central support portion 39c and the arm portion 39a, and between the side surface support portion 39d and the arm portion. By forming the gap 40 between the arm portion 39a and the arm portion 39a, the arm portion 39a can be more easily bent.

  As another embodiment, there is a means in which the beater 47 and the vibrator 24 can be detached using a coupling member 50 as shown in FIG. The coupling portion 50 has a hinge-like configuration, includes a spring 52 in the vicinity of the fulcrum 51, and the hinge portion 50 b is fitted in the recess 24 a formed in the vibrator 24.

  At the time of removal, when the beater 47 is pressed with one hand and a force is applied to the central portion 50a of the coupling portion 50 with the finger of the other hand, the coupling portion 50 becomes elongated in the vertical direction, and the central opening 43 At the same time that the fixed claw 50c is released from the step portion 43a, the hinge portion 50b is released from the recess 24a of the vibrator 24, and the beater 47 can be removed. On the other hand, at the time of attachment, the center opening 43 of the beater 47 can be mounted simply by placing it on the beater support 24b of the vibrator 24 and then pushing in the connecting portion 50.

  As another embodiment, as shown in FIG. 9, there is a means that can be detached from the vibrator 24 by providing a holding portion 55 a in the central opening 56 of the beater 55. The holding portion 55 a is configured to have a shape that is bent in the vertical direction, and a hinge portion 55 b at the tip is fitted in the concave portion 24 a formed in the vibrator 24.

  At the time of removal, when the beater 55 is pressed with one hand and a force is applied to the upper portion of the holding portion 55a in the center direction with the finger of the other hand, the hinge portion 55b at the tip is released from the vibrator 24 and the beater 55 Can be removed. On the other hand, at the time of attachment, it can be attached simply by pushing the holding portion 55 a of the beater 55 into the vibrator 24.

  As described above, since the beater can be easily removed without using a tool or the like, the beater 47 can be removed to easily remove the attached dust and dirt.

  In addition, by changing the height of the stepped portion 43a of the beater 47, the distance to the ground plane can be adjusted. As a result, the strength of hitting the surface to be cleaned and the distance between the surface to be cleaned and the suction port 44 on the beater 47 can be adjusted, so that not only hard bedding and soft bedding, but also carpets, tatami mats, sofas, car seats, and curtains. Etc. Also, the beater 47 can be cleaned, and the cleaning surface can be kept clean at all times.

  FIG. 10 is a view obtained by removing the upper case 16 from the plan view of the bedding mouthpiece shown in FIG. A substantially rectangular opening 32 for attaching the beater 47 is formed on the surface to be cleaned of the lower case 17. The opening 32 is covered with a box of the beater 47, and is configured with a gap that does not interfere with vertical movement. According to this configuration, hair, lint, and the like are not sucked into the gap between the case and the beater, and are not caught by the beater 47.

  The beater 47 moves up and down between the surface to be cleaned such as bedding and the bottom surface of the mouthpiece body. Even when the beater 47 reaches the lowermost position, the upper surface side of the beater 47 is below the bottom surface of the mouthpiece body. It does not protrude. Therefore, no foreign matter is sandwiched between the beater 47 and the bottom surface of the suction body, and the cleaning efficiency can be maintained without impairing the vertical movement.

  11 is a cross-sectional view taken along line AA shown in FIG. The pinion gear 27 and the cam-equipped gear 28 constitute a reduction gear, and reduce the rotation from the motor 26. In the present embodiment example. The number of teeth of the pinion gear 27 is 8, the number of teeth of the cam-equipped gear 28 is 39, and the reduction ratio is about 5. The number of teeth of the pinion gear 27 and the number of teeth of the cam-equipped gear 28 are relatively prime. This is to prevent specific teeth of the gear from being worn repeatedly. The cam-equipped gear 28 is formed of a synthetic resin such as POM that is harder than the synthetic resin used for the upper case 16 and the lower case 17.

  The pinion gear 27 and the cam-equipped gear 28 are spur gears, but operation noise can be reduced by using helical gears. Further, by using the cam-equipped gear 28 as an internal gear, the distance between the rotation shafts of the motor 26 and the cam-equipped gear 28 can be shortened, and a compact configuration can be achieved.

  The cam gear 28 press-fits a hardened stainless steel shaft (not shown) into the rotating shaft. A knurling process is performed around the axis of the shaft to prevent the shaft from rotating after being press-fitted. A washer (not shown) and a bearing (not shown) are inserted into both ends of the shaft press-fitted into the cam-equipped gear 28 for smooth rotation. The stainless steel used for the rotating shaft is martensite, which is because a material that can be hardened is selected in consideration of strength because of the impact load and repeated load applied to the gear 28 with the cam. .

  The cam 48 of the cam gear 28 uses a heart cam that expands in a radial direction by a certain amount for each angle. The non-continuous portion is dulled and has a smooth surface to prevent the impact sound between the cam 48 and the bearing 37 from occurring. In addition, by changing the shape of the cam, it can be arbitrarily selected from the amplitude, vibration cycle, and vibration pattern to be vibrated. For example, when a notch cam is used, vibration with an impact load can be generated. The cam 48 is an outer peripheral cam having a guide surface on the outer periphery, but may be an inner cam having a guide surface on the inner periphery of the cam.

  The operation when the beater 47 is attached to the bedding mouthpiece 15 will be described with reference to FIGS. 11 and 12. The beater 47 is fixed to the vibrator 24 by a fixing claw 39 of the vibrator 24 extending from the bedding mouthpiece 15. As shown in FIG. 11, the slide rib 33 of the beater 47 is supported by the spring 22 through the slit 46 of the spring case 25. The beater 47 receives a force in the direction of the surface to be cleaned, and pulls the vibrator 24 that fixes the beater 47. The vibrator 24 is supported on the circumference of the cam 48 by a bearing 37 that is rotatably supported around a shaft 35 press-fitted into the vibrator 24. In this embodiment, the beater 47 is supported at three points by the vibrator 24 and the spring 22. The fixed position of the vibrator 24 is positioned substantially at the center of the substantially equal springs 22 on both sides, and is supported horizontally with respect to the bottom surface of the lower case 17. Even if there are three or more springs, the positions of the springs may be set so that the moment balance is established with the fixed position of the vibrator 24 and the beater 47 as a fulcrum.

  The rotation from the motor 26 is transmitted by being decelerated by a reduction gear composed of a pinion gear 27 and a cam-equipped gear 28. The cam 48 rotates in synchronization with the rotation of the cam-equipped gear 28. A bearing 37 that can rotate around a shaft 35 press-fitted on the motor cover 21 side of the vibrator 24 moves on the circumference of the cam 48. Since the vibrator 24 is restrained from moving in a direction other than the direction perpendicular to the surface to be cleaned, the vibrator 24 is lifted when the bearing 37 comes to the top dead center of the cam 48 in FIG. Since the beater 47 is attached to the vibrator 24, the beater 47 compresses the springs 22 on both sides of the motor cover 21. The beater 47 is gradually pushed down by the repulsive force of the spring 22 as the motor 26 rotates. At the lowest point of the cam 48 shown in FIG. 12, the bearing 37 is completely lowered, and the beater 47 starts to compress the springs 22 on both sides again by the rotation of the motor 26. By repeating this, vertical movement is performed.

  The beater 47 transmits the vibration transmitted along with the vertical movement to the surface to be cleaned. The transmitted movement causes dust and debris on the surface to be cleaned to rise. As a result, it is possible to easily separate the garbage. Therefore, in this state, if the suction port performs suction, the dust collection performance can be improved.

  Further, since the cam 48 rotates by compressing the spring 22, when the surface to be cleaned presses the beater 47, the rotational motion of the cam 48 is assisted. Since the beater 47 receives a force in the direction in which the beater 47 is pushed from the surface to be cleaned, the force with which the beater 47 is attracted to the surface to be cleaned is only the suction force generated by the suction force. Since this attracting force is sufficiently small as compared with the force generated by the spring 22, the cam 48 can be rotated only by a force substantially resisting the spring force. Thereby, since the mechanism in which the motor is difficult to lock can be configured, the load on the motor can be reduced and the life can be extended.

  The opening 32 has a structure that is covered with the box of the beater 47 and has a gap that does not interfere with the vertical movement of the beater 47.

  As described above, according to the present embodiment, since the beater can be easily removed, the attached dust and dirt can be easily removed by removing the beater. Also, the beater can be washed, and the cleaning surface can always be kept clean.

  Further, according to the present embodiment, even when the beater has reached the lowest position, the upper surface side of the beater does not protrude below the bottom surface of the mouthpiece body, so that the space between the beater and the bottom surface of the mouthpiece body Therefore, the vertical movement can be performed smoothly and the cleaning efficiency can be improved.

It is the perspective view which looked at the mouthpiece for bedding which shows one embodiment of this invention from the to-be-cleaned surface direction. It is the perspective view which looked at the suction mouth for bedding shown in FIG. 1 from the upper direction. It is an external appearance perspective view of the vacuum cleaner which shows one embodiment of this invention. It is a disassembled perspective view which shows one embodiment of this invention, and remove | excludes the upper case, front wheel, rear wheel, and universal joint pipe | tube for the bedding mouthpiece. FIG. 5 is an exploded perspective view of the vibrator shown in FIG. 4. FIG. 5 is a perspective view of the beater and the vibrator shown in FIG. 4 as viewed from the surface to be cleaned. FIG. 7 is a cross-sectional view of a connecting portion between a beater and a vibrator shown in FIG. 6. It is sectional drawing of the coupling | bond part of a beater and a vibrator | oscillator which shows one embodiment of this invention. It is sectional drawing of the coupling | bond part of a beater and a vibrator | oscillator which shows one embodiment of this invention. It is a top view except the upper case shown in FIG. It is AA sectional drawing shown in FIG. 10, and the cam of the gear with a cam is a top dead center. It is a figure when the gear with a cam shown in FIG. 11 rotates 180 degrees.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Hose 3 Hand operation part 4 Expansion / extension pipe 8 Universal joint pipe 12 Terminal 15 Bedding mouthpiece 16 Upper case 17 Lower case 18 Front wheel 19 Spring retainer 22 Spring 23 Vibrator spring 24 Vibrator 25 Spring case 26 Motor 27 Pinion gear 28 Cam gear 33 Slide rib 39, 39b Fixed claw 39a Arm 43 Central opening 43a Step 44 Suction port 47 Beater 48 Cam

Claims (7)

The vacuum cleaner body includes an electric blower and a dust collecting part, and a suction body having an opening to the surface to be cleaned, and a pipe line connecting the dust collection part of the vacuum cleaner body, and the suction mouth is provided by the electric blower. In a vacuum cleaner that sucks the object to be cleaned of the surface to be cleaned together with the outside air near the suction body from the body to the dust collecting part,
The mouthpiece includes a lower case having an opening facing the surface to be cleaned, an upper case provided in the lower case, a universal joint communicating with and connected to the main body, and wheels supporting the upper and lower cases. A vibration member that strikes the surface to be cleaned, and a drive unit that vibrates the vibration member.
The electric vacuum cleaner according to claim 1, wherein the vibration member has an air inlet and can be detached from the drive unit. In claim 1,
An electric vacuum cleaner characterized in that a detaching means between the drive unit and the vibration member is made possible by attaching and detaching an engaging member. In claim 1,
An electric vacuum cleaner characterized in that it can be removed by raising an arm part from a vibrator of the driving part, providing a locking part at a tip of the arm part, and engaging with a concave part provided in the vibration member. In claim 1,
An electric vacuum cleaner characterized in that a holding portion is formed on the vibration member, a locking portion is provided at a tip of the holding portion, and it is removable by engaging with a concave portion provided on a vibrator of the driving portion. In claim 3,
An arm is raised from between the central support and the side support that supports the vibration member on the vibrator of the drive unit, and between the central support and the arm, and between the side support and the arm. An electric vacuum cleaner characterized in that a gap is formed, a locking portion is provided at the tip of an arm portion, and it can be removed by engaging with a concave portion of the vibration member. In claim 1 or 2,
An electric vacuum cleaner characterized in that an outermost peripheral portion of the vibration member is disposed so as to cover an opening facing the surface to be cleaned of the lower case. A lower case having an opening facing the surface to be cleaned, an upper case provided on the lower case, a universal joint connected in communication with the main body side, and a wheel for supporting the upper and lower cases are provided. A vibration member that strikes the cleaning surface and a drive unit that vibrates the vibration member are disposed,
The suction member of the vacuum cleaner, wherein the vibration member has an intake port and can be detached from the drive unit.

Images