JP2006123973A - Bottle having handle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handle for bottle made of a synthetic resin which can firmly be attached even when the rigidity is insufficient resulting from a low molding precision of a handle attaching recess section of a blow-molded bottle. <P>SOLUTION: This handle 10 for bottle made of the synthetic resin which is attached to the handle attaching recess section 5 of a bottle main body 2 has a grip section 11, a flexible upper arm section 12, a rigid lower arm section 13, and a warpage preventing plate 14 which extends from the distal end section of the lower arm section 13 to the upper side of the bottle. The handle 10 is pressed into the handle attaching recess section 5, top and bottom protuberances 16 and 18 are fitted in top and bottom fitting grooves 7a and 8a, the warpage preventing plate 14 is pushed in, and the distal end 14a is fitted in the distal end engaging groove 12b of the upper arm section 12. Thus, the warpage of the upper arm section 12 is prevented from occurring, and the state that the handle 10 is fixed to the handle attaching recess section 5 is formed. Even when the shape precision on the lower end surface 7 of the handle attaching recess section 5 on the bottle side is inferior, and the rigidity is low, the handle 10 can firmly be fixed to the bottle main body 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a synthetic resin bottle handle attached to a synthetic resin bottle in which a handle attachment portion is formed, and a synthetic resin bottle with a handle to which the bottle handle is attached, In particular, the present invention relates to a synthetic resin bottle handle that can be firmly attached to the handle attachment portion.

  A large synthetic resin bottle or the like for storing edible oil is heavy, and a handle is attached to the outer peripheral surface of the barrel so that it can be easily carried. As a method of attaching the handle, there is a retrofitting method in which a bottle having a shape with a handle mounting recess on the outer peripheral surface is formed by biaxial centrifugal blow molding, and then a separately molded handle is attached to the handle mounting recess. Are known.

A bottle to which a handle is attached by this method is disclosed in, for example, Patent Documents 1 and 2 below. The grips disclosed in these patent documents extend from the grip part long in the bottle vertical direction, the arm part protruding from the end of the bottle vertical direction, and the upper arm part toward the lower arm part. And a fixed plate (support plate). In either handle, the upper and lower arms are forcibly fitted into the handle mounting recess formed on the bottle side, and then the fixing plate (support plate) is forcibly pushed. It is made to engage with the front-end | tip part of a part. When the fixed plate (support plate) is engaged with the lower arm, the lower arm is prevented from bending upward and the distance between the upper and lower arms is kept constant, so the handle is attached to the handle. It is held in a state attached to the part.
Japanese Patent No. 3508897 Utility Model Registration No. 2568990

  A conventional handle has a lower arm portion formed into a thin plate shape, and is easily bent in the vertical direction. Then, this is forcibly bent downward at the lower end of the fixed plate (support plate) integrally formed with the upper arm portion, and a state is formed in which it is pressed against the lower end surface of the bottle side handle mounting portion. Yes. Accordingly, the space between the upper and lower arm portions can be maintained in a widened state, so that the protrusion formed on the upper and lower arm portions fits into the groove on the bottle side, and a state where the handle is fixed to the bottle is formed.

  However, in the bottle with a handle having such a configuration, there is a problem that the fixing strength of the handle cannot be sufficiently increased unless the shape accuracy and rigidity of the handle attachment portion formed simultaneously with the blow molding can be secured. In particular, it is difficult to ensure the shape accuracy and rigidity of the lower end surface of the handle attachment portion in which the lower arm portion of the handle and the protrusion formed thereon abuts and fits. There is a problem in that the lower arm portion is easily detached.

  That is, when the bottle is blow-molded, the preform is gradually stretched and blown from the mouth side in the blow mold. Since the lower end surface of the handle attachment portion is curved in the direction opposite to the stretch blow direction, it is difficult to form the portion in close contact with the molding surface of the blow mold with high accuracy. In addition, the lower end surface portion is formed by being pressed against the blow mold forming surface in the final stage of stretch blow, so that the stretch ratio is higher than other portions, so it becomes thin and the rigidity in the out-of-plane direction is reduced. It tends to decrease.

  As described above, in the conventional handle, the lower arm portion has a shape that is easily bent up and down. And the handle is fixed to the bottle by this lower arm part which is easy to bend abuts and fits into the lower end surface of the handle mounting part having low shape accuracy and insufficient rigidity. For this reason, in the case of a large bottle or the like, the lower end surface of the bottle handle attaching portion is not able to withstand the applied load and deforms, and the handle is easily detached from the lower arm portion.

  The handle retrofitted to the conventional blow-molded bottle is not considered at all, and there is a problem to be solved that the handle is not sufficiently fixed.

  In view of these points, the problem of the present invention is that the grip mounting portion formed on the blow-molded bottle has poor molding accuracy, and even if the rigidity is not sufficient, the bottle mounting portion is strong. A synthetic resin bottle handle that can be attached to the bottle, and a synthetic resin bottle with a handle to which the bottle handle is attached.

In order to solve the above problems, the present invention is a synthetic resin bottle handle attached to a handle mounting recess formed in a blow molded synthetic resin bottle,
A grip portion having a length extending between upper and lower edges of the handle mounting recess,
An upper arm portion and a lower arm portion projecting in the same direction from an end portion in the bottle vertical direction of the grip portion in a state of being attached to the grip attaching concave portion;
An anti-bending plate extending from the tip of the lower arm toward the top of the bottle;
In order to mechanically engage the tip of the bending prevention plate, it has a tip engagement portion formed on the lower surface portion of the tip portion of the upper arm portion,
When the upper arm portion comes into contact with the upper end surface of the grip portion from below, an upper contact surface that mechanically engages with the upper end surface and cannot be pulled out in a direction along the upper end surface. Prepared,
When the lower arm portion comes into contact with the lower end surface of the grip portion from above, the lower arm portion is mechanically engaged with the lower end surface and cannot be pulled out in a direction along the lower end surface. A contact surface,
The upper arm is a flexible arm that can bend in the bottle vertical direction,
The lower arm is a rigid arm that does not flex in the bottle vertical direction,
The upper arm portion and the lower arm portion are pushed into the handle mounting recess, and the distal end of the support plate is engaged with the distal end engaging portion of the upper arm portion to prevent the upper arm portion from bending. It is characterized by that.

  Here, the bend prevention plate includes a vertically long plate portion having a constant thickness extending toward the upper side of the bottle, and a reinforcing rib extending in the long side direction along the surface of the plate portion. Is desirable.

  In the bottle handle of the present invention, the lower arm portion located on the lower side of the bottle is a rigid arm portion that does not bend in the vertical direction of the bottle. Therefore, even when the shape accuracy of the lower end face of the bottle-side handle mounting recess to which the lower contact surface of the rigid arm portion is pressed is poor, sufficient mechanical engagement between them can be secured. . Further, even when the out-of-plane rigidity of the lower end surface is low, sufficient mechanical engagement between them can be ensured. Therefore, it can be firmly fixed to the bottle as compared with the conventional bottle handle in which the lower arm portion is a flexible arm portion that can be bent up and down.

  In the present invention, since the reinforcing ribs are formed on the deflection preventing plate, the state where the upper and lower arm portions are reliably brought into contact with the upper and lower end surfaces of the handle mounting concave portion can be maintained. Thereby, the fixing strength of the handle can be increased.

Next, the present invention relates to a bottle with a handle having a synthetic resin bottle in which a handle attaching portion is formed and a synthetic resin handle attached to the handle attaching portion after the bottle is blow-molded.
The handle mounting portion is
A concave portion having a predetermined width in the bottle vertical direction;
An upper fitting groove recessed upward from an end on the bottle center side on the upper end surface of the recess; and
A lower fitting groove recessed downward from an end on the bottle center side on the lower end surface of the recess,
The handle is
A vertically long grip portion extending from the opening edge of the upper end surface to the opening edge of the lower end surface;
An upper arm portion provided with an upper contact surface that protrudes from the upper end portion of the grip portion toward the bottle center side and is in contact with the upper end surface;
An upper protrusion that protrudes upward from the tip of the upper arm and fits into the upper fitting groove;
A tip engagement groove formed on the tip side of the lower surface portion by a claw portion projecting downward from the lower surface portion of the tip portion of the upper arm portion;
A lower arm portion having a lower contact surface that protrudes from the lower end portion of the grip portion toward the bottle center side and is in contact with the lower end surface;
A lower protrusion that protrudes downward from the tip of the lower arm, and is fitted in the lower fitting groove;
A deflection preventing plate extending from the tip of the lower arm to the lower surface of the tip of the upper arm, and the tip is fitted in the tip engaging groove formed in the lower surface. And
The lower arm is a rigid arm that does not substantially bend in the vertical direction of the bottle,
The upper arm is a flexible arm that can bend in the bottle vertical direction,
The upper and lower arms of the handle are pushed into the recess, and the upper end of the flexure prevention plate is pushed into the tip engaging groove beyond the claw portion, so that the upper arm is prevented from being bent. It is characterized by being held in a state of being attached to the handle attachment portion.

  Here, the handle attachment portion includes an insertion groove formed in an opening edge portion of the upper end surface of the recess, and the handle is the upper contact surface of the handle facing the insertion groove. It is desirable to have a protrusion formed in the part and inserted into the insertion groove.

  Further, a reinforcing rib extending in the vertical direction is formed on the surface of the bottle center side of the deflection preventing plate, and a rib groove extending in the vertical direction in which the reinforcing rib is fitted is formed in the bottom surface portion of the recess. It is desirable.

  Furthermore, a vertically long shallow recess extending in the vertical direction for fitting the deflection preventing plate, the tip portion of the upper arm portion, and the tip portion of the lower arm portion may be formed on the bottom portion of the recess. desirable.

  As described above, in the present invention, the lower arm portion located on the lower side in the bottle mounting state of the synthetic resin bottle handle is a rigid arm portion that does not flex in the vertical direction, and is located on the upper side. The upper arm portion is a flexible arm portion that can be bent in the vertical direction, and the upper arm portion is prevented from being bent by a deflection preventing plate. Therefore, when the shape accuracy of the lower end surface of the bottle handle attachment concave portion is poor, even when the rigidity is low, the handle fixing strength can be sufficient.

  Hereinafter, an embodiment of a bottle with a handle made of a synthetic resin to which the present invention is applied will be described with reference to the drawings.

(overall structure)
Fig.1 (a) is a side view which shows the bottle with a handle, FIG.1 (b) is a side view which shows a handle. Moreover, Fig.2 (a) is a longitudinal cross-sectional view of a bottle with a handle, and FIG.2 (b) is a cross-sectional view. Referring to these drawings, the bottle body 2 of the bottle 1 with a handle of the present example includes a small-diameter mouth portion 3 and a generally cylindrical body portion 4 with a bottom that is continuous below the mouth portion 3. An uneven rib for increasing the out-of-plane rigidity is formed on the outer peripheral surface of the body portion. A handle mounting recess 5 having a predetermined width is formed in the vertical direction on the upper outer peripheral surface portion of the body portion 4. The bottle body 2 having this shape is formed by biaxial stretch blow molding, and after molding, a handle 10 made of a synthetic resin that is separately molded is fixed to the recess 5 for grip attachment.

  The handle mounting recess 5 formed in the bottle body 2 connects the substantially flat barrel side surface portion 6 defining the bottom surface of the recess, and the upper end edge of the barrel side surface portion 6 and the barrel outer peripheral surface portion 4a. The upper end surface 7 is defined by the lower end surface 8 connecting the lower end edge of the body side surface portion 6 and the body outer peripheral surface portion 4a. A shallow groove 6a having a constant width extending in the bottle vertical direction is formed at the center of the body side surface portion 6, and a rib groove 6b extending in the bottle vertical direction is formed at the center of the groove 6a.

  The upper end surface 7 has a convex curved surface shape that protrudes downward, and the end of the bottle center side is a narrow upper fitting groove 7a that is recessed upward. An insertion groove 7b that is recessed toward the center of the bottle is formed in an arc surface portion that forms an end (opening edge portion) on the bottle outer peripheral side of the upper end surface 7. The lower end surface 8 has a convex curved surface shape that is convex upward, and the end of the bottle center side is a narrow lower fitting groove 8a that is recessed downward downward.

(Structure of the handle)
A synthetic resin handle 10 fixed to the handle mounting recess 5 in this shape includes a vertically long grip portion 11 extending from the opening edge of the upper end surface 7 to the opening edge of the lower end surface 8, and the grip portion 11. An upper arm portion 12 and a lower arm portion 13 projecting from the upper and lower ends of the bottle toward the center of the bottle, and a deflection preventing plate 14 (support plate) extending from the tip of the lower arm portion 13 to the upper side of the bottle. I have. The upper arm portion 12 is a flexible arm portion that can be bent in the vertical direction, and the lower arm portion 13 is a rigid arm portion that is not bent in the vertical direction. In the mounted state, the upper end 14 a of the anti-bending plate 14 is engaged with the front end engaging groove 12 b formed at the front end so as not to be disengaged from the upper end of the upper arm portion 12, and The bending of the arm portion 12 is prevented.

  The shape of each part will be described in detail. The grip portion 11 includes a vertically long arc-shaped outer plate portion 11a having a constant width and thickness, and a linear inner plate portion 11b having a constant thickness that is narrower than this. The shape is connected by the vertical ribs 11c. The upper end of the outer plate portion 11a is bent inward at an acute angle, and the upper end of the inner plate portion 11b is bent inward in an arc shape, and these merge and continue to the upper arm portion 12 having a constant thickness.

  On the inner surface portion of the upper end of the outer plate portion 11a, a protrusion 15 inserted into the insertion groove 7b formed on the bottle side is integrally formed. The upper abutment surface 12a of the upper arm 12 is a curved surface that is slightly curved downward, and an upper protrusion 16 that protrudes upward with a constant width and constant thickness is integrally formed at the tip side thereof. Has been. The upper projection 16 is fitted into the upper fitting groove 7a of the upper end surface 7 on the bottle side from below.

  The lower side surface of the upper arm portion 12 is a flat surface, and a wedge-shaped claw portion 17 having a large amount of protrusion toward the distal end side is formed at the distal end side portion. A tip engagement groove 12b is formed by the end surface 17a of the claw portion 17 and the tip portion of the lower side surface. The upper end 14a of the deflection preventing plate 14 is fitted in the tip engaging groove 12b.

  Next, the lower end of the outer plate portion 11 a of the grip portion 11 is bent inward at an angle smaller than 90 degrees and continues to the lower plate portion 13 a of the lower arm portion 13. The lower end of the inner plate portion 11 b also bends inward in an arc shape and is continuous with the upper plate portion 13 b of the lower arm portion 13. The lower arm portion 13 has a mountain shape in which the upper plate portion 13a and the lower plate portion 13b merge at the front end of the bottle center side, and these are connected by a triangular vertical rib 13c. Therefore, it is a rigid arm portion that has high rigidity in the vertical direction and does not bend in the vertical direction.

  The lower abutting surface 13d of the lower arm portion 13 is a curved surface slightly curved upward as a whole, and a lower projection 18 projecting downward with a constant width is integrally formed at the tip end portion thereof. This is fitted into the lower fitting groove 8a of the lower end face 8 on the bottle side from the upper side.

  The tip of the lower arm portion 13 having this configuration is curved at a substantially right angle in an arc shape and continues to the deflection preventing plate 14. The bending prevention plate 14 is a vertically long rectangular plate having a constant width and a constant thickness, and a reinforcing rib 14b extending in the vertical direction is formed at the center of the inner surface thereof. The bending prevention plate 14 is mounted in a concave groove on the bottle side, and the reinforcing rib 14b is also fitted in a rib groove 6b formed in the concave groove.

(Grip assembly procedure)
FIG. 3 shows a procedure for assembling the handle 10 to the bottle body 2. As shown in FIG. 3A, in the handle 10 before mounting, the tip 14 a of the anti-bending plate 14 is positioned closer to the grip portion 11 than the claw portion 17 of the upper arm portion 12. The tip end 14 a has an arcuate inner surface and can easily ride on the claw portion 17.

  First, as shown in FIG. 3A, the handle 10 is inclined forward by a predetermined angle with respect to the state attached to the bottle body 2, and the upper contact surface 12 a of the upper arm portion 12 is set to the bottle body 2. Is pressed against the upper end surface 7 of the recess 5 for attaching the handle, and the projection 15 is inserted into the insertion groove 7b, and the upper projection 16 is positioned in the upper fitting groove 7a.

  In this state, the lower portion of the grip portion 11 of the handle 10 is forcibly pushed toward the handle mounting recess 5. As a result, the lower arm portion of the handle 10 is bent by the tip end side of the portion of the upper arm portion 12 where the tip 14a of the bend preventing plate 14 is in contact, and the lower end surface 8 of the bottle body side is bent. 13 lower projections 18 can be pushed into the lower fitting grooves 8a.

  The solid line in FIG. 3B shows this state. After this, the deflection preventing plate 14 is forcibly pushed into the bottle center side. The tip 14a of the bending prevention plate 14 gets over the claw portion 17 while forcibly bending the upper arm 12 upward. When getting over the claw portion 17, the tip end 14a fits in the tip end engaging groove 12b, and the upper arm portion 12 returns to the lower side again. As a result, as shown by an imaginary line in FIG. 3B, the bending prevention plate 14 is engaged with the upper arm portion 12 without being detached, so that an assembled state of the handle 10 is formed. .

  The lower arm portion 13 is a rigid arm portion, and the flexible upper arm portion 12 is prevented from being bent by the deflection preventing plate 14. Therefore, the upper projection 16 of the upper arm portion 12 and the lower projection 18 of the lower arm portion 13 are held in the upper fitting groove 7a and the lower fitting groove 8a, respectively. Since the grip 10 is held in the groove 7 b, the handle 10 is fixed to the bottle body 2.

(Other embodiments)
In the above-described handle 10, the upper projection 17 and the lower projection 18 are formed at the tip portions of the upper arm portion 11 and the lower arm portion 13, respectively, and these are formed on the upper fitting groove 7 a and the lower side of the handle mounting recess 5. The handle 10 is fixed to the bottle side by fitting in the fitting groove 8a. Between the handle 10 and the groove 10, the upper contact surface of the upper arm portion 11 and the lower contact surface of the lower arm portion 12 are respectively the upper end surface 7 and the lower side on the handle mounting recess portion 5 side. If a mechanical engagement that prevents the end surface 8 from coming out is formed, the protrusion and the groove can be of various shapes and sizes.

It is the side view of the bottle with a handle to which this invention is applied, and the side view of a handle. It is the longitudinal cross-sectional view and cross-sectional view of the bottle of FIG. It is explanatory drawing which shows the procedure which attaches a handle to a bottle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottle with a handle, 2 Bottle main body, 3 mouth part, 4 trunk | drum, 4a trunk | drum outer peripheral surface part, 5 recessed part for grip attachment, 6 outer peripheral side surface of a concave groove, 7 upper end surface, 7a upper fitting groove, 8 lower end surface 8a Lower fitting groove, 10 handle, 11 gripping part, 12 upper arm part, 12b tip engaging groove, 13 lower arm part, 14 deflection preventing plate, 14a tip, 14b reinforcing rib, 12a upper contact surface, 12b Tip engaging groove, 13d lower contact surface, 16 upper protrusion, 17 claw portion, 18 lower protrusion, 15 protrusion

Claims (7)

A synthetic resin bottle handle to be attached to a handle mounting recess formed in a blow molded synthetic resin bottle,
A grip portion having a length extending between upper and lower edges of the handle mounting recess,
An upper arm portion and a lower arm portion projecting in the same direction from an end portion in the bottle vertical direction of the grip portion in a state of being attached to the grip attaching concave portion;
An anti-bending plate extending from the tip of the lower arm toward the top of the bottle;
A tip engagement portion formed on the lower surface portion of the tip portion of the upper arm portion, engageable with the tip of the deflection preventing plate,
When the upper arm portion comes into contact with the upper end surface of the grip portion from the lower side, the upper arm portion includes an upper contact surface that engages with the upper end surface and becomes undrawn in a direction along the upper end surface,
When the lower arm portion comes into contact with the lower end surface of the grip portion from above, the lower contact surface engages with the lower end surface and cannot be pulled out in a direction along the lower end surface. With
The upper arm is a flexible arm that can bend in the bottle vertical direction,
The lower arm is a rigid arm that does not flex in the bottle vertical direction,
The upper arm portion and the lower arm portion are pushed into the handle mounting recess, and the distal end of the support plate is engaged with the distal end engaging portion of the upper arm portion to prevent the upper arm portion from bending. A handle for a bottle made of synthetic resin, characterized in that In claim 1,
The bend prevention plate includes a vertically long plate portion having a constant thickness extending toward the upper side of the bottle, and a reinforcing rib extending in the long side direction along the surface of the plate portion. A handle for plastic bottles. In a bottle with a handle having a synthetic resin bottle in which a handle attaching portion is formed on the outer peripheral surface portion of the trunk portion, and a synthetic resin handle attached to the handle attaching portion after blow-molding the bottle,
The handle mounting portion is
A concave portion having a predetermined width in the bottle vertical direction;
An upper fitting groove recessed upward from an end on the bottle center side on the upper end surface of the recess; and
A lower fitting groove recessed downward from an end on the bottle center side on the lower end surface of the recess,
The handle is
A vertically long grip portion extending from the opening edge of the upper end surface to the opening edge of the lower end surface;
An upper arm portion provided with an upper contact surface that protrudes from the upper end portion of the grip portion toward the bottle center side and is in contact with the upper end surface;
An upper protrusion that protrudes upward from the tip of the upper arm and fits into the upper fitting groove;
A tip engagement groove formed on the tip side of the lower surface portion by a claw portion projecting downward from the lower surface portion of the tip portion of the upper arm portion;
A lower arm portion having a lower contact surface that protrudes from the lower end portion of the grip portion toward the bottle center side and is in contact with the lower end surface;
A lower protrusion that protrudes downward from the tip of the lower arm, and is fitted in the lower fitting groove;
A deflection preventing plate extending from the tip of the lower arm to the lower surface of the tip of the upper arm, and the tip is fitted in the tip engaging groove formed in the lower surface. And
The lower arm is a rigid arm that does not substantially bend in the vertical direction of the bottle,
The upper arm is a flexible arm that can bend in the bottle vertical direction,
The upper arm portion is prevented from being bent by pushing the handle into the recess and pushing the tip portion of the anti-bending plate beyond the claw portion into the tip engagement groove, and the handle is attached to the handle attachment portion. A bottle with a handle, characterized by being held in a pressed state. In claim 3,
The handle attachment portion includes an insertion groove formed in an opening edge portion of the upper end surface of the recess,
The bottle with a handle, characterized in that the handle includes a protrusion formed on a portion of the upper abutting surface of the handle facing the insertion groove and inserted into the insertion groove. In claim 3 or 4,
Reinforcing ribs extending in the vertical direction are formed on the surface of the bottle center side in the deflection preventing plate,
A bottle with a handle, wherein a rib groove extending in a vertical direction into which the reinforcing rib is fitted is formed in a bottom surface portion of the concave portion. In claim 3, 4 or 5,
The bottom portion of the concave portion is formed with a vertically long shallow concave portion extending in the vertical direction for fitting the deflection preventing plate, the distal end portion of the upper arm portion, and the distal end portion of the lower arm portion. A bottle with a handle.   The said handle as described in any one of Claim 3 thru | or 6.

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