JP4731186B2 - Cleaning member holder and method for manufacturing the same - Google Patents

Description

  The present invention relates to a cleaning member holder to which a cleaning member such as a mop-like object is detachably mounted and a method for manufacturing the same.

In a cleaning member holder to which a cleaning member such as a mop is detachably attached, a holding piece portion to which the cleaning member is attached and a grip portion are integrally formed of synthetic resin. As for the grip portion in the synthetic resin cleaning member holder, there has been known a grip portion that employs a solid structure that is easy to grip and has an external appearance (for example, see Patent Document 1).
JP-A-11-225933

  However, there is an indication that the mop holder described in Patent Document 1 is difficult to handle because the grip portion is formed into a solid body with a synthetic resin, so that the grip portion is relatively heavy. Furthermore, when molding a synthetic resin grip part into a solid body, there is a drawback that the appearance is easily damaged by resin sink at the time of molding, and bubbles are introduced into the solid body at the time of molding, leading to a decrease in strength. There was a fear.

  For this reason, recently, a technique has been adopted in which the grip portion is molded so that the cross-sectional shape is a substantially inverted U shape so that the sink marks of the resin during molding can be suppressed and sufficient strength can be obtained. However, this is because the space between both falling parts of the substantially inverted U-shape is open, so when gripping the grip part, part of the palm enters the inner space from the open part, and a good fit is obtained. There is a problem that can not be.

  The present invention has been made in view of the above-described conventional circumstances, and provides a cleaning member holder that can improve grip strength and a manufacturing method thereof, in addition to being able to increase mechanical strength and reduce weight. Is an issue.

  This invention was made in order to achieve the said subject, and the 1st form of this invention is a cleaning member holding tool provided with the synthetic resin grip part, and a cross-sectional shape is substantially reverse U-shape. The cleaning member holder is characterized in that both falling portions of the molded synthetic resin grip portion are bent inward so that the lower ends are in contact with each other or close to contact with each other.

  A second aspect of the present invention is a method of manufacturing a cleaning member holder having a synthetic resin grip portion, and the synthetic resin is molded so that the cross-sectional shape of the grip portion is substantially inverted U-shaped. A cleaning member characterized in that both falling portions are bent and deformed inward by a mechanical action in the resin during molding, and the lower ends of both falling portions are set in contact with each other or close to contact with each other. It is a manufacturing method of a holder.

  According to a third aspect of the present invention, there is provided a method for manufacturing a cleaning member holder having a grip portion made of synthetic resin, wherein the grip portion is molded so that the cross-sectional shape of the grip portion becomes a substantially inverted U shape. Next, by forcibly deforming both falling parts of the grip part molded body inward, the lower ends of the two falling parts of the grip part molded body are set in contact with each other or close to contact with each other. The manufacturing method of the cleaning member holder characterized by these.

  According to the first aspect of the present invention, the cross-sectional shape of the grip portion is formed in a substantially inverted U shape, and both the falling portions are bent inward, so that the hollow portion between the two falling portions is formed. It can be lighter than the solid one due to its presence, and can be as strong as the substantially inverted U shape. In particular, since the lower ends of the two falling portions are in contact with each other or close to contact with each other, the palm of the user's hand does not enter the inner space between the two falling portions. A good fit can be obtained as if the heel is also holding the cylinder. The cleaning member is a member for wiping away or cleaning the object to be cleaned such as dust, and is selected from, for example, a cloth body such as a mop, a sponge body, and a brush body.

  According to the second embodiment of the present invention, when the grip portion is formed of synthetic resin so that the cross-sectional shape is substantially inverted U-shaped, the portion corresponding to both falling portions and the other portion are thick. Consider the resin injection port so that it is non-uniform, or due to the anisotropy of the shrinkage rate in the direction perpendicular to the flow direction of the resin. If designed, both thick falling portions can be automatically bent inward due to uneven shrinkage of the resin during molding. That is, since the grip portion is processed using the mechanical action of the resin during molding, a desired grip structure can be easily realized without introducing special bending means.

  According to the third aspect of the present invention, the grip portion is formed of synthetic resin so that the cross-sectional shape is substantially inverted U-shaped, and then both falling portions of the grip portion molded body are forcibly set to the inside. Therefore, the amount of bending deformation can be arbitrarily adjusted, and a desired grip shape can be easily obtained.

Embodiments of the present invention will be described below with reference to the drawings.
1 is an exploded perspective view showing a handy cleaning tool to which a cleaning member holder according to an embodiment of the present invention is applied, FIG. 2 is a sectional view of the cleaning tool along the line XX of FIG. 1, and FIG. It is a bottom view which similarly shows the cleaning member holder. 1 to 3, the handy cleaning tool 10 includes a cleaning member holder 1 and a cleaning member 50.

  The cleaning member holder 1 detachably mounts a cleaning member 50 that is a mop-like object, and includes a holding piece portion 2 and a cleaning member pressing portion located on the base end portion 2a side of the holding piece portion 2. 3 and a grip portion 4 extending rearward from the base end portion 2a of the holding piece portion 2 are integrally formed by injection molding a synthetic resin. In the cleaning member 50, a thread or string-like object 51b is sewn on the entire lower surface and the entire periphery of the base material portion 51a made of a thick cloth, and a bridge-shaped held portion 51c is formed on the upper surface. It is sewn.

  The holding piece portion 2 is for insertion into the held portion 51c of the cleaning member 50, and the entire planar shape is formed in an elliptical spatula shape. The holding piece 2 is formed with a long elliptical cavity 20 in the center, thereby being curved outward in a circular arc shape, and a pair of elastic side portions 21 integrally coupled at both ends in each longitudinal direction. , 21 is inserted and inserted into the held portion 51c, the pair of elastic side portions 21 and 21 are elastically deformed inward, and the held portion 51c is attached by the elastic return force. Yes. Of course, the configuration of the holding piece portion 2 is not limited to the one having the pair of elastic side portions 21 and 21, and any configuration including the shape and the like can be adopted.

  The cleaning member pressing portion 3 sandwiches the held portion 51c from above and below by the holding piece portion 2 inserted into the held portion 51c of the cleaning member 50, and the upper surface of the holding piece portion 2 2, specifically, a high position where there is a gap enough to allow the thickness of the held portion 51 c of the cleaning member 50 to enter the holding piece portion 2 as shown in FIG. 2. is there.

  The cleaning member pressing portion 3 includes a pair of elastic protruding pieces 31 and 31 protruding integrally forward from the front end surface of the base end portion 4 a of the grip portion 4, and at each distal end portion of the elastic protruding pieces 31 and 31. Are formed with arcuate cleaning member pressing curved portions 31a, 31a. Needless to say, the cleaning member pressing portion 3 is not limited to the one provided with the pair of elastic protruding pieces 31 and 31 as described above, but can be of any configuration.

  The grip part 4 extends from the base end part 2a of the holding piece part 2 toward the rear sky, and is formed into a banana shape in the longitudinal direction so as to be easily gripped. As shown in FIG. 4, the grip portion 4 has a substantially inverted U-shaped cross section as shown in the YY line in FIG. 1, and both falling portions 41, 41 have lower ends 41a, 41a. The comrades are bent inwardly in contact with each other. Of course, the two falling portions 41, 41 may be bent inward so that a slight gap exists between the lower ends 41a, 41a, that is, close to contact.

  In addition, even if the cross-sectional shape of the grip part 4 does not strictly have a substantially inverted U shape over the entire length of the grip part 4, as shown in FIG. A substantially inverted U shape is sufficient.

Next, a method for forming the grip portion 4 will be described.
As a first method, first, a predetermined molding die (not shown) corresponding to the substantially inverted U shape is prepared. In this molding die, the thickness T of the two falling portions 41, 41 and other portions are made non-uniform in thickness, or the shrinkage rate in the resin flow direction and the direction perpendicular thereto is different. Depending on the characteristics, the resin injection port is taken into consideration, or further, the mold cooling is designed to be non-uniform.

  Synthetic resin is injected into this molding die and molded, and as shown by the solid line in FIG. 5, the grip part molded body 4A is molded with a substantially inverted U-shaped cross section. Since the shrinkage occurs, the two falling portions 41, 41 are deformed by being pulled inwardly due to any of the following factors: thickness nonuniformity between the wall thickness T and other parts, molecular orientation, and cooling nonuniformity. As shown by the chain line in FIG. 5, the lower ends 41a and 41a of the two falling portions 41 and 41 come into contact with each other, whereby the grip portion 4 is formed. Of course, the lower ends 41a and 41a of the two falling portions 41 and 41 may be close to contact with each other so that a very small gap exists even if they do not contact completely.

  In this first method, when the grip part 4 is formed of synthetic resin so that the cross-sectional shape is substantially inverted U-shaped, the part corresponding to both the falling parts 41 and 41 and the other part are thick. Either make it non-uniform, or consider the resin injection port due to the anisotropy of shrinkage in the direction perpendicular to the flow direction of the resin, or even molds so that the mold cooling is non-uniform Since the two falling portions 41 and 41 are automatically bent inward due to uneven shrinkage of the resin during molding, the desired grip structure can be obtained without specially introducing bending means. Can be easily obtained. As a second method of forming the grip portion 4, first, a predetermined molding die corresponding to the substantially inverted U shape is prepared.

  Synthetic resin is injected into this molding die for molding, and as shown in FIG. 6, a grip part molded body 4A having a substantially inverted U-shaped cross section is molded. Then, in the high temperature state immediately after taking out from the mold, both falling portions 41, 41 of the grip portion molded body 4A are forcibly deformed inward by physical means as shown in FIG. The lower ends 41a and 41a of the descending portions 41 and 41 are brought into contact with each other. Thereby, the grip part 4 is formed. Of course, the lower ends 41a and 41a of the two falling portions 41 and 41 may not be completely in contact with each other, but may be in a state close to contact with a very small gap.

  In this second method, the grip portion 4 is formed of synthetic resin so that the cross-sectional shape is substantially inverted U-shaped, and then both falling portions 41.41 of the grip portion molded body 4A are forcibly set to the inner side. Therefore, the amount of deformation can be arbitrarily adjusted, and a desired grip portion shape can be easily obtained.

Next, a procedure for using the cleaning member holder 1 having the above configuration will be described.
First, after gripping the grip portion 4 in the cleaning member holder 1 and inserting the holding piece portion 2 into the held portion 51c of the cleaning member 50 as shown in FIG. Since the inner side surface of the held portion 51c is regulated from the outside in the width direction and elastically deforms inward, it is pressed against the inner side surface of the held portion 51c by the elastic restoring force of the elastic side portions 21 and 21. Retained.

  Further, as shown in FIG. 2, when the holding piece portion 2 is inserted into the held portion 51c of the cleaning member 50, the pair of elastic protruding pieces 31 and 31 in the cleaning member pressing portion 3 causes the held portion 51c to be moved from above. Press elastically. Specifically, since the curved portions 31a and 31a on the distal end side of the pair of elastic protruding pieces 31 and 31 run on the held portion 51c, the pair of elastic protruding pieces 31 and 31 correspond to the thickness of the held portion 51c. Then, it is elastically deformed upward, and the curved portions 31a, 31a press-contact the held portion 51c by the elastic restoring force.

  Thereby, the held portion 51c of the cleaning member 50 is sandwiched and held between the curved portion 31a and the holding piece portion 2. Then, furniture or a desk can be wiped and cleaned with the cleaning member 50 while holding the grip portion 4. In this case, since the cross-sectional shape of the grip part 4 is a substantially inverted U shape, it is relatively light and easy to handle. In addition, since both the falling portions 41 and 41a of the grip portion 4 are bent inward and the lower ends 41a and 41a are in a substantially contact state, the strength of the hook is ensured as in the pipe shape.

  In particular, when the grip part 4 is gripped, a part of the palm does not enter the inner space S between the two falling parts 41, 41a, and a very good fit can be obtained. If both the falling portions 41 and 41a are bent inward along the arc trajectory, the fit becomes even better.

  When the cleaning operation is completed, the holding piece 2 can be easily removed from the held portion 51c of the cleaning member 50 by pulling the cleaning member 50 so that the cleaning member holder 1 is relatively retracted by holding the cleaning member 50. Can be removed.

  By the way, in the said embodiment, although the holding piece part 2 and the grip part 4 which hold | maintain the cleaning member 50 were demonstrated integrally, this invention is limited to the structure in embodiment. Instead, even if the grip part 4 is formed separately from the holding piece part 2, it is applicable.

It is a disassembled perspective view which shows the cleaning tool to which the cleaning member holding tool concerning embodiment of this invention was applied. It is sectional drawing along the XX line of FIG. It is a bottom view in a cleaning member holder similarly. It is sectional drawing of the grip part along the YY line of FIG. It is explanatory drawing of the 1st shaping | molding method. It is sectional drawing which shows the grip part molded object by a 2nd shaping | molding method. It is explanatory drawing of the bending process with respect to the grip part molded object of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cleaning member holder 2 Holding piece part 2a Base end part 3 Cleaning member pressing part 4 Grip part 4A Grip part molded object 4a Base end part 10 Handy type cleaning tool 20 Space 21 Elastic side part 31 Elastic protrusion 31a Curved part 41 Falling part 41a Lower end 50 Cleaning member 51a Base material part 51b String-like object 51c Held part S Inner space part T Thickness

Claims (3)

In the cleaning member holder equipped with a synthetic resin grip, both falling parts of the synthetic resin grip having a substantially inverted U-shaped cross section are caused by uneven shrinkage in the resin during molding. Each lower end is formed by bending and deforming inward so that they are in contact with each other or close to contact with each other , and the uneven shrinkage is caused by uneven thickness of the grip part, shrinkage rate anisotropy or cooling nonuniformity. A cleaning member holder characterized by being caused . A method of manufacturing a cleaning member holder having a grip portion made of synthetic resin, wherein the grip portion is formed with a synthetic resin so that the cross-sectional shape of the grip portion becomes a substantially inverted U shape, and the resin in molding is not uniform. both falling portion by bending deformation inward direction by Do contraction involves setting the respective lower end comrades both falling portion in a state close to the contact or contact with each other, the non-uniform contraction of the grip portion meat A method for manufacturing a cleaning member holder, which is caused by thickness nonuniformity, shrinkage rate anisotropy or cooling nonuniformity . The non-uniform thickness is formed by designing a molding die of the grip portion so that the thickness of the grip portion is non-uniform, and the shrinkage ratio anisotropy is provided in the molding die. The molding die is formed so that the shrinkage rate of the resin is different between the flow direction of the resin injected from the resin injection port and the direction perpendicular thereto, and the cooling non-uniformity is such that the mold cooling is non-uniform. The manufacturing method of the cleaning member holder of Claim 2 formed by designing .

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