JP3133654U - toothbrush - Google Patents

Abstract

The object of the present invention is to grip by a pen grip method in which natural and efficient toothbrushing is performed, thereby suppressing the occurrence of deformation of the hair bundle and improving safety.
SOLUTION: From a grip portion 2 and a head portion 4 which is integrally connected to one end portion of the grip portion 2 via a neck portion 3 and a hair bundle 5 is implanted on a main surface 4A to constitute a brush surface 5A. The grip portion 2 is formed in a substantially rectangular cross-sectional shape having a major axis side in a direction orthogonal to the brush surface 5A of the head portion 4, and at least the minor axis side parallel to the brush surface 5A on the tip side is at least the brush surface. It is formed so as to constitute substantially the same surface as 5A, and is used by being gripped by a pen grip.
[Selection] Figure 1

Description

  The present invention relates to a toothbrush.

  A toothbrush is an extremely important tool for preventing dental caries and periodontal disease by firmly removing plaque and massaging the gums. The toothbrush is basically composed of a grip part to be gripped by the user and a head part constructed as a brush surface by continuously connecting a hair bundle on the main surface to one end of the grip part via a neck part. Formed as a configuration. There are various types of toothbrushes based on various designs based on the basic configuration and various theories regarding the angle and condition of the brush surface and hair bundle against the teeth and gums, the shape and hardness of the hair bundle, and user preferences. A variety of structures are provided.

  In the toothbrushing method, the shape of the toothbrush described above and its usage are also very important. For example, the palm grip method is generally used to hold the toothbrush with the palm of your hand, and the brush surface faces the front and the other side. There is a way to turn to. The palm grip method is a method of brushing mainly by applying both sides of the hair bundle to teeth and gums, and it can be brushed firmly for elderly people and infants with weak gripping power, and it is easy to hold, There is a feature that brushing can be performed over a wide range on the entire brush surface. However, it has been pointed out that the palm grip method is liable to damage the gums and the like due to excessive brush pressure applied to the teeth and gums. For example, Patent Document 1 and Patent Document 2 disclose palm grip type toothbrushes that are improved in usability.

  In the tooth brushing method, the pen grip method has been recommended as a method for improving the above-described disadvantages of the palm grip method. The pen grip method is a method for brushing teeth by applying the tip of the hair bundle to the teeth or gums, and it is easy to control the brush pressure and it is possible to check the contact position of the hair tip. In addition, there is a feature that the brush tip can be effectively brushed by entering the gap between the teeth. The pen grip method has recently been recommended as an efficient and effective toothbrushing method that replaces the palm grip method described above, and various methods and effects have been introduced in dentist's toothbrushing guidance and toothbrush catalogs. Yes.

  By the way, in tooth brushing, a state in which saliva or the like in which toothpaste is mixed in the grip part flows down from the head part on the way and the grip part becomes slippery often occurs. For example, Patent Document 3 and Patent Document 4 disclose toothbrushes that improve the grip performance by preventing saliva and the like from flowing down to the grip portion. However, such a toothbrush has a structure that is extremely difficult to grip by the above-described pen grip method.

  Patent Document 5 discloses a toothbrush in which a ring-shaped fingertip hooking portion is provided in the middle of the grip portion, and a finger is passed through the fingertip hooking portion for gripping, thereby further improving grip performance. . However, such a toothbrush is likely to be damaged or dirty at the fingertip engaging portion, and brushes teeth and gums more strongly by the palm grip method.

  Patent Document 6 discloses a toothbrush that reduces the brush pressure by forming a convex portion at the rear end portion of the grip portion to reduce the force for gripping the grip portion.

JP 2002-85157 A JP 2003-347 A Japanese Utility Model Publication No. 61-199232 JP 2003-347 A Japanese Utility Model Publication No. 63-187828 Japanese Utility Model Publication No.4-118028

  In the toothbrushing method, not only the selection of the above-mentioned toothbrush and how to hold the toothbrush, but also how to move the toothbrush is important. In the toothbrushing method, since the wear of each tooth increases when the toothbrush is reciprocally moved in the direction orthogonal to the dentition (left and right direction), there is a rolling method in which the toothbrush is moved up and down with respect to each tooth. It was recommended. However, with regard to the tooth brushing method, recently, a method of frequently moving in the left-right direction so as to give fine vibration to each tooth, for example, called a bath method or a scraping method, is recommended from this vertical movement.

  The bath method is a tooth brushing method in which the hair tips are applied to the gums at an angle of about 45 ° and moved to the left and right. The scraping method is a toothbrushing method in which the hair tips are applied substantially at right angles to the gums and moved in the same way to the left and right.

  By the way, the toothbrush is generally composed of a grip portion and a head portion that is integrally connected to one end portion of the grip portion via a neck portion and has a hair bundle planted on the main surface. The conventional toothbrush is formed so that the long side surface of the grip portion formed in a rectangular cross section and the main surface of the head portion constitute substantially the same surface, and when gripping with a pen grip, the wide relative width of the grip portion is The short side surface to be gripped is sandwiched between the thumb and the index finger.

  In the conventional toothbrush, the pen grip method in which the narrow portion is sandwiched by the above-described shape makes it difficult to grip the grip portion, which causes a low penetration rate compared to the palm grip method that is easy to grip. In addition, in conventional toothbrushes, saliva mixed with toothpaste flows down from the head part to the grip part gripped by the thumb and forefinger, so it is easy to slip and does not hold a reliable grip, so the brushing efficiency is high. There is also a problem that it falls. In a toothbrush, the problem with this slipping becomes even more pronounced when gripped by the pen grip method with the above-described structure.

  The conventional toothbrush has a structure in which the hair bundle protrudes from the main surface of the head surface.For example, when carrying, transporting, or storing, external force directly acts on the hair bundle to cause bending wrinkles. There was a case where it was bent or bent. Therefore, in the conventional toothbrush, it is housed in a hard case or the like to protect the hair bundle, but there is a problem that the cost increases and the device becomes bulky. In addition, the toothbrush disclosed in Patent Document 6 is formed with a convex portion that protrudes toward the brush surface at the rear end portion of the grip portion, and this convex portion is expected to exhibit a hair bundle protecting action to some extent. . However, this toothbrush is not sufficient for protecting the hair tips because the height of the convex portion is lower than the tip of the hair bundle.

  In addition, toothbrushes are used for each individual, and those with the same specifications and colors of about 3 to 5 colors are always provided so that they can be identified by color. However, since toothbrushes are purchased with a color that is generally preferred, purchasing and inventory management has been troublesome. In addition, toothbrushes are provided to customers as amenity goods at inns and hotels, etc., but generally they are often the same color or two colors for men and women, and it is difficult to identify who used them when staying with multiple people. It is. The toothbrush is more difficult to identify because it is leaned against a cup after use.

  Furthermore, in kindergartens and nursery schools, many infants often use toothbrushes all at once in order to make their children learn to brush their teeth after meals. Many conventional toothbrushes are compatible with palm grips, and are generally long. In such tooth brushing behavior, an accident occurs where an infant or the like often brushes while brushing teeth regardless of the teacher's attention, causing the next infant's hand to hit and damaging the back of the throat with the tip of the toothbrush. There is also a risk.

  Therefore, the present invention solves the above-mentioned various problems of the prior art, and comes to be gripped by the pen grip method in which natural and efficient and effective tooth brushing is performed, suppressing the occurrence of deformation of the hair bundle and It has been proposed for the purpose of providing a toothbrush that improves safety.

  A toothbrush according to the present invention that achieves the above-described object is a head configured as a brush surface by integrally connecting a grip portion and one end portion of the grip portion via a neck portion and planting a hair bundle on a main surface. A part. The toothbrush is formed in a substantially rectangular cross-sectional shape in which the grip portion has a major axis side in a direction perpendicular to the brush surface of the head portion, and has a minor axis side parallel to the brush surface on the other end side facing the neck portion. It is formed so as to constitute substantially the same surface as the brush surface, and is used by being gripped by a pen grip.

  In the toothbrush configured as described above, the grip portion which is wide and thin in the height direction with respect to the brush surface is sandwiched between the thumb and forefinger and is naturally held in the form of a pen grip supported by the middle finger and The brush surface can be confirmed smoothly in the gripped state, and the penetration rate of the pen grip, which is an effective and effective brushing method for easily controlling the brush pressure on the teeth and gums, can be improved. Further, in the toothbrush, the brush surface, which is the tip of the bristle bundle, constitutes substantially the same surface as the rear end of the grip part, so that the external force acts directly on the bristle bundle to cause bending or bending. For example, it can be stored in a soft case and can be carried, transported or stored.

  In addition, the toothbrush according to the present invention has a grip portion whose longitudinal axis is slightly longer than the distance between at least the thumb to be gripped and the fingertip of the index finger and the base of these fingers, so that the whole is compared with a conventional general toothbrush. And formed with a short length. With a toothbrush, it is possible to further suppress excessive brush pressure on teeth and gums with a short overall length, and to perform efficient and effective toothbrushing with a pen grip. Even if one accident occurs, damage will be reduced.

  In the toothbrush according to the present invention, a fingertip engaging portion including a recessed portion or a through hole with a counterbore is formed in the grip portion corresponding to at least fingertip portions of the thumb and index finger to be gripped. In the toothbrush, the fingertip portion of the thumb or index finger is wide, and the grip portion is sandwiched and gripped with the fingertip hooked on the fingertip engaging portion. Therefore, the toothbrush can perform efficient and effective toothbrushing with a reliable grip even if saliva or the like mixed with toothpaste flows down from the head part during the toothbrushing operation.

  In the toothbrush according to the present invention, a through hole is formed in the grip portion, and an identification body formed of a colored elastic material is fitted into the through hole. In the toothbrush according to the present invention, the identification body is fitted with the surface thereof being substantially flush with the bottom of the counterbore in a state where the identification body is fitted into the through hole of the grip portion. In the toothbrush, an identification body of an appropriate color tone is selected and fitted into the through hole, so that it is possible to identify itself and others, and the identification body is accented and is suitable as an amenity gift. In the toothbrush, by fitting an elastic material to the bottom of the counterbore with respect to the through hole, the function of the fingertip hooking portion is maintained, and the grip characteristics are further improved.

  According to the toothbrush according to the present invention configured as described above, the shape of the pen grip is naturally adopted by gripping the portion where the grip portion is wide and thin with respect to the brush surface, and the tooth or gum is applied to the toothbrush. It is possible to perform efficient and effective tooth brushing while checking the state of the brush surface and suppressing excessive brush pressure. Further, according to the toothbrush, since the brush surface, which is the front end portion of the hair bundle, and the rear end portion of the grip portion are configured to be substantially on the same surface, the brush surface hits when carrying or the like to open the hair tip. The occurrence of such a situation is reduced so that normal brushing is performed.

  Hereinafter, the toothbrush shown in drawing as embodiment of this invention is demonstrated in detail. The toothbrush 1 shown in FIG. 1 to FIG. 3 as the first embodiment is also made of a synthetic resin material, and a head integrally connected to the grip portion 2 and one end portion of the grip portion 2 via the neck portion 3. Similar to the conventional toothbrush of the conventional palm grip specification described above, the basic configuration comprising the portion 4 and the bristles 5 that are implanted on the one main surface 4A of the head portion 4 and have the tip portion as the brush surface 5A And In the following description, terms such as “upper and lower” and “left and right” are used with reference to FIG.

  The toothbrush 1 is also formed in various sizes according to the division conditions, for example, for adults and children, or for men and women, with the head portion 4 having a rectangular plate shape as a basic shape. The toothbrush 1 has 3 to 4 rows of bristle bundles 5 parallel to the length direction and about 8 rows parallel to the width direction on the main surface 4A of the head portion 4 having a standard size. The toothbrush 1 uses, for example, nylon fibers, polypropylene fibers, or natural fibers such as pork having a predetermined outer diameter and length for the bristle bundle 5, and is hard, such as “hard”, “normal”, and “soft”. It is provided in the head section 4 in the section. In addition, this invention does not make the summary the detailed structure of the head part 4 or the bristle bundle 5, but can utilize the thing equivalent to the conventional toothbrush.

  The toothbrush 1 has a characteristic that the neck portion 3 has a rectangular cross section that is slightly narrower than the head portion 4, so that it can be slightly elastically deformed in the thickness direction.

  In the toothbrush 1, the grip portion 2 is formed with a predetermined length, for example, according to segmentation conditions such as for adults and children, or for men and women, as with conventional toothbrushes. In the toothbrush 1, the grip portion 2 is formed in a substantially rectangular cross-sectional shape with the long axis side in the direction orthogonal to the brush surface 5A as shown in FIGS. That is, the grip portion 2 has a vertically long rectangular shape as shown in FIG. 3 in which the short side is slightly thin with the same width as the neck portion 3 and the long side is almost equal to or higher than the standard adult fingertip width. The cross-sectional shape is formed.

  In the toothbrush 1, the grip portion 2 is formed in a right-down shape starting from the neck portion 3 as shown in FIG. 1, and the side shape as a whole has a substantially square shape. The toothbrush 1 is formed such that the distal end portion 2A of the grip portion 2 is positioned below the brush surface 5A as shown in FIG.

  The toothbrush 1 configured as described above is used by gripping the grip portion 2 with a pen grip. Of course, the toothbrush 1 can be used by gripping the grip portion 2 with a palm grip, but is naturally and stably gripped by a pen grip with the shape described above. That is, the pen grip applies the index finger F2 on the second surface 2C side opposite to the grip portion 2 of the toothbrush 1 with the thumb F1 applied to the first main surface 2B side in the thickness direction as shown in FIG. The finger is picked up with the thumb F1 and the index finger F2. As shown in the figure, the pen grip guides the distal end portion 2A of the grip portion 2 from the base portion T of the thumb F1 and the index finger F2 to the back of the hand and supports the lower surface by the middle finger F3. As for the pen grip, the ring finger F4 and the little finger F5 are not used for gripping the toothbrush 1.

  In the toothbrush 1, as described above, the grip portion 2 has a vertically long rectangular cross-sectional shape, so that the grip portion 2 that is wide and thin in the height direction with respect to the brush surface 5A is picked with the thumb F1 and the index finger F2. The pen grip supported by the middle finger F3 is gripped as a natural form. In the toothbrush 1, as shown in FIG. 2, it is possible to clearly check the state of the brush surface 5A while holding the grip part 2 with a pen grip, and the toothbrush 1 is accurately aligned with the teeth and gums. Will come to be. In the toothbrush 1, by gripping the grip portion 2 with a pen grip, it is possible to finely control the brush pressure on the teeth and gums, so that efficient and effective tooth brushing is performed.

  As described above, the toothbrush 1 has an overall structure that is substantially U-shaped with the tip 2A of the grip 2 protruding from the brush surface 5A. For example, when the toothbrush 1 is placed with the brush surface 5A facing upward, the tip portion 2A of the grip portion 2 is positioned above the brush surface 5A. When the toothbrush 1 is carried, transported or stored, the tip 2A of the grip part 2 acts as a stopper to prevent external pressure from being applied to the brush surface 5A, thereby preventing the bristle bundle 5 from expanding or bending. To do. The toothbrush 1 does not require a hard case or the like that protects the hair bundle 5, and a large amount of handling is simplified. Therefore, even when the toothbrush 1 is used in a large amount as an amenity gift in a hotel or the like, for example, it can be easily stored and distributed to each room.

  As described above, the toothbrush 1 has the grip portion 2 having a length equivalent to that of a conventional toothbrush having a conventional palm grip specification. The toothbrush 1 does not require a large length because the grip portion 2 is gripped by a pen grip. The toothbrush 10 shown in FIG. 4 as the second embodiment is characterized in that the grip portion 11 is shortened and the brush pressure is further reduced. In the toothbrush 10, the neck portion 3 excluding the grip portion 11 and the head portion 4 in which the hair bundle 5 is implanted are formed in the same manner as the toothbrush 1.

  In the toothbrush 10, the grip portion 11 is formed in a right-down shape starting from the neck portion 3 in the same manner as the grip portion 2 described above, and the side shape as a whole is formed in a substantially square shape. The toothbrush 10 is also gripped by a pen grip that is wide and thin in the height direction with respect to the brush surface 5A with a thumb grip F1 and index finger F2 and supports the lower surface with the middle finger F3.

  In the toothbrush 10, the grip portion 11 is formed with an arc-shaped concave portion 12 on the lower surface in the vicinity of the distal end portion 11 </ b> A, and a convex portion 13 is formed at a front portion of the concave portion 12. The toothbrush 10 acts as a part that protects the brush surface 5A when being carried, transported, stored, or the like, like the above-described toothbrush 1, with the convex portion 13 of the grip portion 11 protruding from the brush surface 5A.

  The toothbrush 10 has a grip portion 11 that has a slightly longer axis than the distance D between the fingertips of the thumb F1 and the index finger F2 and the base T of the thumb F1 that holds the entire length L, and is entirely compared with the toothbrush 1 described above. It is formed with a short length. As shown in FIG. 4, the toothbrush 10 is in a state in which the concave portion 12 is received at the base T and the tip 11 </ b> A is placed on the back of the hand through the base T in a state where the toothbrush 10 is held by the pen grip.

  The toothbrush 10 is classified into an adult and a child (infant) whose hands are greatly different by gripping the grip portion 11 with a pen grip. There is no need to do. The toothbrush 10 may be formed so that the overall length L of the grip portion 11 is, for example, about 40 mm to 60 mm for general adults without being classified into male and female. The cost of the toothbrush 10 can be reduced by reducing the number of items.

  In the toothbrush 10, the tip portion 11 </ b> A of the grip portion 11 riding on the back of the hand through the root T has a power point with the gripping position by the thumb F <b> 1 and the index finger F <b> 2 of the grip portion 11 as a fulcrum by being gripped by the above-described pen grip. The brushing operation is performed with the configuration, brush surface 5A as an action point. In the toothbrush 10, the distance between the fulcrum and the power point is reduced by the short axis structure described above, and the brush pressure generated on the brush surface 5A as the action point is reduced. In the toothbrush 10, the arc-shaped concave portion 12 that fits in the root T is formed in the grip portion 11, whereby the force at the power point is dispersed to further reduce the brush pressure, and the concave portion 12 and the convex portion 13 are connected to the root T. The occurrence of blurring is suppressed by hitting following the above.

  In the toothbrush 10, the whole is formed with a short axis, but efficient and effective toothbrushing is performed by being gripped with a pen grip. In the toothbrush 10, the configuration of the brush surface 5 </ b> A and the convex portion 13 described above allows the hair bundle 5 to be stored in a soft case without damaging it, and is stored and transported. Is planned. Even if the toothbrush 10 has a short axis as a whole, even if there is a risk of a toothpaste in a cage such as toothbrushing or behavior by many children in kindergarten etc. or toothbrushing or behavior in flight, etc. Prevent damage from reaching the back of the throat.

  The toothbrush 15 shown in FIGS. 5 and 6 as the third embodiment is similar to the toothbrush 10 described above with respect to the configuration in which the grip portion 16 is shortened to reduce the brush pressure. It is characterized by a structure that improves the gripping characteristics. In the toothbrush 15, the neck portion 3 excluding the grip portion 16 and the head portion 4 in which the hair bundle 5 is implanted are formed in the same manner as the toothbrush 1 and the toothbrush 10.

  Note that the toothbrush 15 is configured such that the neck portion 3 is formed in a slightly long axis so that a large elastic deformation occurs and the pressed state is held against the teeth and gums. Since the toothbrush 15 has the entire length equivalent to the toothbrush 10 described above and the neck portion 3 has a slightly long axis, the length of the grip portion 16 is reduced and the gripping characteristics are deteriorated. The toothbrush 15 is configured such that the gripping area is maintained by making the grip portion 16 have a substantially deformed rhombus shape as shown in FIG. The toothbrush 15 also has a structure in which a concave portion 12 and a convex portion 13 are formed on the tip end portion 16A side of the grip portion 16, and the convex portion 13 projects downward from the brush surface 5A.

  As described above, the toothbrush 15 is gripped by a pen grip having a gripping force smaller than that of the palm grip so that the grip portion 16 is gripped in the thickness direction by the thumb F1 and the index finger F2. In the toothbrush 15, saliva mixed with toothpaste during the toothpaste operation flows down from the head portion 4 to the grip portion 16 via the neck portion 3, so that the fingertip portions of the thumb F <b> 1 and the index finger F <b> 2 are easily slipped. In the toothbrush 15, the gripping characteristics are improved by forming the fingertip engaging portion 17 formed of a through hole in the thickness direction at the neck portion 3 side of the grip portion 16.

  The toothbrush 15 is formed with a fingertip engaging portion 17 formed of a through hole at a corresponding portion of the fingertip of the thumb F1 and the index finger F2, as shown in FIG. 5, with the grip portion 16 held by a pen grip. The fingertip engaging portion 17 is configured by a through hole having an inner diameter that is slightly smaller than the fingertip of the index finger F2 having a small outer diameter and that has a predetermined mechanical strength. As shown in FIG. 6, spot facings 18 </ b> A and 18 </ b> B are formed on the first main surface 16 </ b> B and the second main surface 16 </ b> C where the through-holes of the grip portion 16 are opened. By forming these counterbore 18A and 18B, the fingertip hooking portion 17 can cope with variations in the fingertips of the thumb F1 and the index finger F2, and the fingertip is hooked so that the gripping state is securely held. To.

  In the toothbrush 15 configured as described above, the fingertips of the thumb F1 and the index finger F2 fit into the fingertip engaging portion 17 from the first main surface 16B and the second main surface 16C to grip the grip portion 16. In the toothbrush 15, even if saliva or the like mixed with toothpaste flows down to the grip part 16 during the toothbrushing operation, the gripping state is reliably held by the thumb F <b> 1 and the index finger F <b> 2 where the fingertip is caught in the fingertip engaging part 17. . In the toothbrush 15, blurring due to slipping is suppressed and efficient and effective tooth brushing is performed.

  In the toothbrush 15, the fingertip hooking portion 17 including a through hole is formed at the corresponding portion between the thumb F <b> 1 and the index finger F <b> 2, but the configuration is not limited to the fingertip hooking portion 17. A plurality of fingertip engaging portions 17 may be formed in the grip portion 16 in order to cope with variations in hand size. The fingertip engaging portion 17 may be a concave portion having an arcuate cross section formed on the first main surface 16B and the second main surface 16C of the grip portion 16, respectively, and corresponds to the deviation of the fingertip position between the thumb F1 and the index finger F2. Then, these recesses may be formed at different positions. Further, the fingertip engaging portion 17 is not limited to a circular shape, and may be an axially long hole or an elliptical concave portion.

  The toothbrush 20 shown in FIG. 7 as the fourth embodiment also has the same configuration as the toothbrush 15 described above in order to reduce the brush pressure by shortening the grip portion 21 and improve the gripping characteristics when brushing teeth. In addition, the present invention is characterized by a configuration having self-other identification that is effective when a plurality of people use the same place. In the toothbrush 15, the neck portion 3 excluding the grip portion 21 and the head portion 4 in which the hair bundle 5 is implanted are formed in the same manner as the toothbrush 1 and the toothbrush 10. The toothbrush 15 also has a counterbore 18 penetrating in the thickness direction on the lower side surface portion of the grip portion 21 and formed with a vertex portion 21B that is substantially flush with the brush surface 5A in the middle of the tip portion 21A. A fingertip engaging portion 17 is formed.

  In the toothbrush 20, the lower side surface of the grip portion 21 that continues in a state of lowering right from the neck portion 3 is configured as an escape side surface 22 with an area between the tip portion 21 </ b> A and the apex portion 21 </ b> B as an arc shape. The toothbrush 20 forms a power point by the relief side surface 22 hitting the base portion T of the thumb F1 and the index finger F2 in a state where the grip portion 21 is gripped by the pen grip. As a result, the brush pressure can be further reduced. The toothbrush 20 also has a grip portion 21 with a small outer shape as a whole, but is configured so that the gripping area is maintained by forming the upper side surface portion 21C upward as shown in FIG. .

  The toothbrush 20 also has a through hole 23 that penetrates in the thickness direction in the vicinity of the tip of the grip portion 21, and this through hole 23 is used as a string hook hole or the like. The toothbrush 20 uses the through-hole 23 to fit the identification body 24 so that self-other identification can be achieved. The identification body 24 is formed in a round plug shape having an outer diameter slightly larger than the inner diameter of the through hole 23 by an elastic material such as a rubber material colored with an appropriate color tone, and at least one side surface side as shown in FIG. A chamfer 24A having a tip diameter slightly smaller than the inner diameter of the through-hole 23 is applied.

  The toothbrush 20 is provided with a plurality of color discriminators 24, and the user selects one having a desired color tone and is fitted into the through hole 23 with the chamfer 24A side as a fitting side. The toothbrush 20 is discriminated by the color tone of the discriminator 24 so that the toothbrush 20 is not mistakenly used by another person even when a plurality of people use it at the same place and place it on a toothbrush stand or the like. The toothbrush 20 can be identified without using a resin material of a different color tone by using a plurality of color identification bodies 24, reducing the troublesomeness of inventory management and making the identification body 24 an accent. Suitable as a good.

  The toothbrush 20 may be used by fitting the identification body 24 described above to the fingertip engagement portion 17 as shown in FIG. In this case, the toothbrush 20 has a thickness in which the identification body 24 is slightly larger in diameter than the inner diameter of the fingertip engaging portion 17, and both end surfaces form substantially the same surface as the bottom portion of the counterbore 18 in the fitted state. Formed. In the toothbrush 20, as shown in the figure, the fingertip engaging portion 17 into which the identification body 24 is fitted has a recess shape with respect to the first main surface 21D and the second main surface 21E of the grip portion 21 by the depth of the counterbore 18. In this way, the gripping state is reliably held by hooking the fingertips of the thumb F1 and the index finger F2. Since the identification body 24 is formed of an elastic material, the toothbrush 20 gives a fit to the fingertips of the thumb F1 and the index finger F2, and further improves the grip characteristics.

  In addition, although the toothbrush 20 formed the identification body 24 in the shape of a round plug which consists of a several color tone as mentioned above, it is not limited to this shape. The identification body 24 includes, for example, a plug portion fitted into the through hole 23 and the fingertip engaging portion 17, and a display portion formed of a character, a pattern shape, or the like that is integrally formed at the distal end portion of the plug portion and protrudes from the main surface of the grip portion 21. You may comprise. The toothbrush 20 is further suitable for infants, children or amenity goods by using the identification body 24.

  The toothbrush 20 is accommodated in a soft case 25 with a tongue formed of, for example, a translucent vinyl chloride resin shown in FIG. 7 when not used, stored or transported. As described above, the toothbrush 20 has a cross-sectional shape in which the grip portion 21 has a long axis side in a direction orthogonal to the brush surface 5A, so that the bristle bundle 5 and the grip portion 21 are in the same direction and the brush surface 5A is The tip of the hair is prevented from being deformed by being housed in the soft case 25 while being protected by the apex portion 21A. In addition, each toothbrush 1,10,15 mentioned above is accommodated in a soft case with the same form, and a hair tip is protected.

It is a side view of a toothbrush shown as a 1st embodiment of the present invention. It is a top view of the state which gripped the toothbrush with the pen grip. It is sectional drawing of the grip part of the toothbrush. It is a side view of the state which grasped the toothbrush shown as a 2nd embodiment of the present invention with a pen grip. It is a side view of the toothbrush shown as 3rd Embodiment of this invention. It is sectional drawing of the grip part of the toothbrush. It is a side view of the toothbrush shown as 4th Embodiment of this invention. It is sectional drawing of the grip part which fitted the identification body of the toothbrush. It is a perspective view of an identification body.

Explanation of symbols

  1 toothbrush, 2 grip part, 3 neck part, 4 head part, 5 bristle bundle, 10 toothbrush, 11 grip part, 12 concave part, 13 convex part, 15 toothbrush, 16 grip part, 17 fingertip engaging part, 18 spot face, 20 Toothbrush, 21 Grip part, 22 Relief side, 23 Through hole, 24 Identification body, 25 Soft case

Claims (5)

A grip portion, and a head portion that is integrally connected to one end portion of the grip portion via a neck portion and is configured as a brush surface by implanting a hair bundle on the main surface,
The grip portion is formed in a substantially rectangular cross-sectional shape having a major axis side in a direction orthogonal to the brush surface of the head portion, and a short axis parallel to the brush surface on the other end side facing the neck portion A toothbrush characterized in that a side is formed so as to constitute substantially the same surface as the brush surface or a protruding surface, and is used by being gripped by a pen grip.   The toothbrush according to claim 1, wherein the grip portion is formed to have a long axis slightly longer than a distance between at least a thumb to be gripped, a fingertip of an index finger, and a base of these fingers.   3. A fingertip engaging portion comprising a recessed portion or a through hole with a counterbore is formed on the grip portion corresponding to at least the thumb and the fingertip portion of the index finger to be gripped. The toothbrush according to item 1.   The toothbrush according to any one of claims 1 to 3, wherein a through hole is formed in the grip portion, and an identification body formed of a colored elastic material is fitted into the through hole.   5. The toothbrush according to claim 4, wherein the surface of the discriminating body is fitted into the through hole of the grip portion so that the surface thereof is substantially flush with the bottom portion of the counterbore.

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