JP2018088971A - Screw-up cylinder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a screw-up cylinder that, even with a screwed-down content imparted by an excessive thrusting force, absorbs and reduces such a force.SOLUTION: The screw-up cylinder includes: a base member 2 having a screw-rod 1; an intermediate tray 3 that is engaged with the screw-rod 1 and that holds content M; and a case body 4 that surrounds the intermediate tray 3 and the screw-rod 1 together. By rotating the screw-rod 1 through the base member 2, the intermediate tray 3 is made to slide along the shaft core L of the screw-rod 1, with the content M screwed up from the open end 4a of the case body 4. In this screw-up cylinder, the case body 4 is provided with a bottom wall part 5 that is slidably linked with the body portion 2a of the base member 2. Between the base 1a of the screw-rod 1 and the bottom wall part 5, there is arranged a buffer member 7 which, when an excessive thrust force is imparted to the content M screwed up from the open end 4a, displaces the screw-rod 1 through the contraction toward the bottom wall part 5 together with the base member 2 and the intermediate tray 3.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a feeding container capable of appropriately pushing out the contents (bar-shaped member) in the filling space from the open end of the case body by sliding (moving up and down) the inner tray in the case body.

  For containers filled with lipstick, lip balm, or stick-type glue as contents, rotate the operating body (dial, etc.) attached to the lower end of the case body to push the contents out of the open end of the case body. A feeding container is frequently used.

  By the way, when this kind of feeding container grips the case body and applies the contents, the contents may be pressed with an excessive force against the application surface. There is a defect that prevents uniform application of the contents.

  Prior literature on this point is that the contents (bar-shaped cosmetics) fit between the holding part and the screwing part screwed into the feeding mechanism, or between the screwing piece and the screwing part. For example, a feeding container disclosed in Patent Document 1 in which a cushion member that cushions such impact, stress, and the like is arranged is known.

Japanese Utility Model Publication No. 5-95413

  However, the conventional feeding container disclosed in the above-mentioned document cushions impact, stress, etc. by elastic deformation of only the cushion member, and its effect is small and sufficient to avoid breakage of the contents. The current situation is not to say.

  The subject of this invention exists in the place which proposes the feeding container which can absorb and reduce the excessive force added when apply | coating the content more effectively.

  The present invention includes a base member having a screw rod held in an upright posture, an intermediate pan that is engaged with the screw rod and holds contents, and a case body that surrounds the intermediate pan with the screw rod. A feeding container that rotates the screw rod through the base member to slide the inner tray along the axis of the screw rod and push the contents out of the open end of the case body, The main body has a bottom wall portion slidably linked to the body portion of the base member, and the contents pushed out from the open end between the base portion of the screw rod and the bottom wall portion are excessive. When a pressing force is applied, a buffer member is disposed to displace the screw rod toward the bottom wall together with the base member and the inner plate by contraction thereof. It is feeding container according to claim.

  In the feeding container having the above-described configuration, the buffer member is a spring, rubber, or packing made of synthetic resin provided separately from the screw rod and the base member, and the base member includes the bottom wall It is desirable to have an operating body that is located below the unit and rotates the base member together with the screw rod.

  In the delivery container according to the present invention, the bottom wall portion linearly contacts the base of the base member on the lower surface thereof before the pressing force is applied to the contents (in a steady state). It is desirable to provide an annular projection or a plurality of projections that come into contact with dots.

  According to the feeding container of the present invention, when the contents are strongly pressed against the application surface, the buffer member contracts and the screw rod is displaced toward the bottom wall portion together with the base member and the inner pan. For this reason, the pressing force applied to the contents is absorbed and reduced by the buffer member, and a problem that the contents are broken is avoided. In addition, the contents can be uniformly applied.

  Moreover, according to the delivery container of this invention, by providing a buffer member separately from a screw rod and a base member, appropriate selection and quality control of each structural member can be performed easily.

  Furthermore, according to the feeding container of the present invention, since the bottom wall portion and the base of the base member are in contact with each other by linear or dotted protrusions, the contact area between them can be reduced. Smooth rotation is possible.

FIG. 2 is a diagram schematically showing an embodiment of a feeding container according to the present invention (the right half is shown in cross section with the center line as a boundary). 1A is an enlarged view of a portion A in FIG. 1 (state in a steady state where no pressing force is applied), and FIG. 1B is a view showing an enlarged view of the portion A in FIG. It is the figure which showed the state (The state where the pressing force is added to the content). It is the figure which showed the state where the pressing force was added to the contents about the whole feeding container. It is the figure which showed typically other embodiment of the delivery container according to this invention, (a) is the enlarged view (state at the time of steady state) of the site | part corresponding to the A section of FIG. ) Is a view showing a state in which the buffer member is deformed with respect to an enlarged view corresponding to part A of FIG. 1.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a diagram schematically showing an embodiment of a feeding container according to the present invention (the right half is shown in cross section with a center line as a boundary). 2A is an enlarged view of the portion A in FIG. 1, and FIG. 2B is a diagram in which a pressing force is applied to the contents pushed out (drawn) from the case body. FIG. 3 is a diagram showing the whole feeding container in a state where a pressing force is applied to the contents pushed out from the case main body.

  The feeding container according to the present invention is basically composed of synthetic resin for all of its constituent members, but may be composed entirely or partially of a metallic member.

  In the drawing, reference numeral 1 denotes a screw rod, and 2 denotes a base member that holds the screw rod 1 in an upright position by connecting the upper end of the screw rod 1 to the lower surface of the base 1a of the screw rod 1 so that it cannot be detached. The screw rod 1 and the base member 2 are connected to each other so as not to rotate. When the base member 2 rotates, the screw rod 1 rotates in accordance with the rotation.

  The base member 2 includes a cylindrical body portion 2a and a circular base 2b that is integrally connected to the lower end of the body portion 2a and has a larger diameter than the body portion 2a.

  Reference numeral 3 denotes an intermediate dish for holding the contents M on the upper surface portion (a stick-shaped member such as a lipstick is applied to the contents). The intermediate dish 3 includes a short inner cylinder 3a formed with a threaded portion that engages with a threaded portion of the screw rod 1, and a relatively long outer cylinder 3b that slidably contacts an inner wall of a case body, which will be described later. The inner cylinder 3a and the outer cylinder 3b are composed of a bottom wall portion 3c that is integrally connected to each other at an axial intermediate portion thereof, and at least one vertical groove m is formed on the outer peripheral wall of the outer cylinder 3b. . The inner tray 3 has an upper end portion 3a1 for the inner cylinder 3a, an outer wall 3a2 connected to the upper end surface 3a1, an upper surface wall 3c1 for the bottom wall portion 3c, and an upper surface portion for holding the contents M by the inner wall 3b1 for the outer cylinder 3b. Although what was formed was shown as an example, what consists of a holding | maintenance method of the various shapes and the content M can be applied to the inner plate 3, and it is not limited to the thing of illustration.

  Reference numeral 4 denotes a case main body that surrounds the inner tray 3 together with the screw rod 1.

  The case main body 4 is formed of a hollow cylindrical body having an open upper portion, and a longitudinal rib m1 is formed on the inner peripheral wall of the case main body 4 so as to match the longitudinal groove m provided in the outer cylinder 3b of the inner tray 3. By fitting the vertical groove m of the inner dish 3 to the vertical rib m1 of the case body 4, the rotation of the inner dish 3 is restricted and can be slid linearly within the case body 4.

  An open end 4a at the top of the case body 4 forms an extrusion port (feeding port) for contents. In addition, a vertical rib may be provided on the outer cylinder 3 b of the inner tray 3, and a vertical groove that matches the vertical rib may be provided on the inner peripheral wall of the case body 4.

  Reference numeral 5 denotes a bottom wall portion integrally connected to the lower end portion of the case body 4. An opening 5a through which the body portion 2a of the base member 2 is inserted and slidably linked to the body portion 2a is provided at the center of the bottom wall portion 5. The bottom wall portion 5 constitutes a part of the case body 4, and when the bottom wall portion 5 slides along the body portion 2 a of the base member 2, the case body 4 also slides along with the bottom wall portion 5.

  Reference numeral 6 denotes a protrusion that prevents the bottom wall portion 5 from coming out of the body portion 2a (for example, an engagement that can be engaged by undercutting). The protrusion 6 is an annular protrusion that is provided at the upper end portion of the body portion 2a and protrudes outward in the radial direction, or a plurality of protrusions that are provided at intervals.

  A buffer member 7 is provided between the base 1 a and the bottom wall 5 of the screw rod 1. The shock-absorbing member 7 is composed of a synthetic resin annular spring that circulates around the body portion 2a of the base member 2 and has a transverse U-shaped cross section that is open radially outward.

  The buffer member 7 has a biasing force that constantly presses the bottom wall portion 5 against the base 2 b of the base member 2. Then, when an excessive pressing force is applied to the content M pushed out from the open end 4a, the screw rod 1 is contracted together with the base member 2 and the inner plate 3 toward the bottom wall portion 5 and is displaced. Thus, the pressing force applied to the contents can be absorbed and reduced.

  In addition to the synthetic resin spring, a metal spring, rubber, flexible packing, or the like is applied as the buffer member 7. In order to position the buffer member 7 between the base portion 1a and the bottom wall portion 5 of the screw rod 1 with certainty, the diameter of the base portion 1a of the screw rod 1 is made larger than the diameter of the body portion 2a of the base member 2. It is preferable to leave. Moreover, although the buffer member 7 has been shown as an example having a laterally U-shaped cross section that is opened radially outward, a cushioning member 7 having a lateral U-shaped cross section that is opened radially inward, a spring-like one, etc. The present invention can be applied and is not limited to the illustrated one. The buffer member 7 may be formed integrally with the bottom wall portion 5 or the base portion 1 a of the screw rod 1.

  Reference numeral 8 denotes an operating body (an heel member) provided below the case body 4. The operating body 8 includes a peripheral wall 8 a having a diameter substantially equal to the diameter of the case body 4, and an upper end portion of the peripheral wall 8 a is integrally connected to an edge portion of the base 2 b of the base member 2. When the operating body 8 is appropriately rotated forward and backward, the screw rod 1 is rotated along with the rotation, and the inner plate 3 engaged therewith moves up and down in the case body 4 together with the contents.

  Reference numeral 9 is a protrusion provided on the lower surface of the bottom wall portion 5. As the protrusion 9, an annular protrusion that circulates around the body portion 2 a of the base member 2 or a plurality of protrusions that come into contact with each other in a dotted manner is applied.

  At the normal time when the pressing force is not applied to the contents M (see FIGS. 1 and 2A), the bottom wall 5 is in contact with the base 2b of the base member 2 (by the buffer member 7). However, by providing the protrusions 9, the bottom wall 5 comes into contact with the base 2 b of the base member 2 in the form of a line or dots, so that the contact area between them becomes small. As a result, the contents M can be pushed out by rotating the base member 2 smoothly with a small force by the operating body 8. The protrusions 9 may be provided on the upper surface of the base 2b of the base member 2.

  Reference numeral 10 denotes an annular body integrally provided on the outer edge of the lower surface of the bottom wall portion 5. The annular body 10 has a wall portion that is close to the outer edge portion of the base 2b and surrounds the entire circumference thereof. The annular body 10 has a lateral deflection of the operating body 8 (a deflection in a direction intersecting the axis L of the screw rod 1). ) Function as a guide to regulate.

  Further, reference numeral 11 denotes a cap that is detachably fitted to the upper portion of the case body 4 to seal the open end 4a. As the cap 11, an undercut fitting or a screw engaging is applied.

  In order to push out the contents M in the case main body 4 in the feeding container according to the present invention, the operating body 8 may be rotated forward after removing the cap 11. Then, the screw rod 1 rotates through the base member 2, and the inner tray 3 that engages with the screw rod 1 slides along the axis L toward the open end 4a. The object M is pushed out from the open end 4 a of the case body 4.

  When applying the extruded content M to the application surface, the tip of the content M is moved while being pressed against the application surface as shown in FIG. Even if an unexpected excessive pressing force is applied to the contents, as shown in FIG. 2 (b), the screw rod 1 is moved to the bottom wall portion 5 together with the base member 2 and the inner plate 3 by contraction of the buffer member 7. Therefore, the pressing force is absorbed and reduced by the buffer member 7, and the contents M are not easily broken. This also enables uniform application of the contents.

  4 (a) and 4 (b) are diagrams schematically showing another embodiment of a feeding container according to the present invention in which an annular rubber member having a rectangular cross section is applied as the buffer member 7, a) is a diagram showing a state in a steady state, and (b) is a diagram in which a pressing force is applied to the contents M and the buffer member 7 contracts, so that the screw rod 1, the base member 2, and the inner plate 3 are directed toward the bottom wall portion 5. FIG.

  Even in such a feeding container, even if an excessive pressing force is applied to the contents M, the force is effectively absorbed and reduced by the buffer member 7.

  As an embodiment of the present invention, the buffer member 7 is configured separately from the screw rod 1 and the base member 2, thereby simplifying the shape of the constituent members (screw rod 1, base member 2, etc.). In this case, the delivery container can be efficiently manufactured.

  ADVANTAGE OF THE INVENTION According to this invention, even if excessive force is added to the extruded content, the delivery container which can reduce the force effectively can be provided.

DESCRIPTION OF SYMBOLS 1 Screw rod 1a Base part 2 Base member 2a Body part 2b Base 3 Middle dish 3a Inner cylinder 3b Outer cylinder 3c Bottom wall part 4 Case main body 4a Open end 5 Bottom wall part 5a Opening 6 Protrusion 7 Buffering member 8 Operation body 8a Circumferential wall 9 Protrusion 10 annular body 11 cap M contents L shaft core m longitudinal groove m1 longitudinal rib

Claims (4)

A base member having a screw rod held in an upright position; an intermediate plate that is engaged with the screw rod and holds contents; and a case body that surrounds the intermediate plate together with the screw rod. A feeding container that slides the inner tray along the axis of the screw rod by rotating the base plate through the base member to push the contents out of the open end of the case body,
The case main body has a bottom wall portion slidably linked to a body portion of the base member,
When an excessive pressing force is applied to the content extruded from the open end between the base portion of the screw rod and the bottom wall portion, the screw rod is contracted by the base member and the inner plate. In addition, a feeding container comprising a buffer member that is displaced toward the bottom wall portion.   The feeding container according to claim 1, wherein the buffer member is a synthetic resin spring, rubber, or packing provided separately from the screw rod and the base member.   3. The feeding container according to claim 1, wherein the base member has an operation body that is positioned below the bottom wall portion and rotates the base member together with the screw rod.   The bottom wall portion has, on the lower surface thereof, an annular projection or a plurality of projections that contact in a linear manner with the base of the base member in a normal state before a pressing force is applied to the contents. The feeding container according to any one of claims 1 to 3, wherein:

Images