JP2000043907A - Tube squeezing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a winding shaft from being unwound by a method wherein tongues are formed at the right and the left bearing plates whereon bearings for rotatively bearing the winding shaft are provided, and while small protuberances are provided at the outside of the front end parts of the tongues, a disk is provided at one end of the winding shaft and a holding part is provided at the other end, and a number of recessed parts are formed at equal intervals at the periphery of the disk. SOLUTION: For a tube squeezing device 1 used for squeezing a tube filled with sealant, toothpaste or the like, holes 8 and 9 are bored at its right and left bearing plates 2 and 3 and a winding shaft 11 is inserted through the holes 8 and 9. A slit 12 is formed at the winding shaft 11 and protuberances 13... are formed in projection at the inner wall of the slit 12, and the tube inserted therein is certainly supported therewith at its bottom. A disk 16 is fixed at the tail end side of the winding shaft 11 and recessed parts 17... are provided in cutting at equal intervals at the periphery of the disk 16. Tongues 21 are formed with U-shaped notches provided at the outside of the bearing plates 2 and 3 and a small protuberance 23 in a hemispherical shape is formed in projection at the outside of each of the tongues for making the recessed part 17 engaged therein.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding shaft having a slit for locking a bottom of a tube in an axial direction, left and right bearing plates provided with bearings for rotatably supporting the winding shaft, and a front portion of the bearing plate. The present invention relates to a tube squeezer comprising a tube guide port provided therebetween, and is used for extruding a tube filled with an adhesive, a sealing material, toothpaste, and the like.

2. Description of the Related Art Japanese Patent Application Laid-Open No. 5-322 describes this type of diaphragm.
An example disclosed in Japanese Patent Application Publication No. 59-59 is known. This restrictor restricts the movement of the body of the tube at the guide port so that the winding shaft does not reversely rotate due to the repulsive force generated when a tube having elasticity such as a laminated tube is wound, and is wound. The mandrel is supported in the hole of the support plate with frictional resistance. However, since the friction force increases the resistance by forming a matte-like unevenness on the inner wall of the hole, the frictional resistance decreases when the protrusions and the contact surfaces thereof wear out during use, and the predetermined resistance is reduced. There is a disadvantage that the effect cannot be expected. In addition, the filling material is pushed out by the rotation of the winding shaft by hand, but since the winding thickness of the tube gradually increases, if the winding shaft is rotated at the same speed or feeling, the amount of extrusion gradually increases. There was a risk that an unexpected amount of filler would be extruded.

[0003]

The present invention relates to a winding shaft having a slit for locking a bottom of a tube in an axial direction, left and right bearing plates provided with bearings for rotatably supporting the winding shaft, and a front portion of the bearing plate. It is an object of the present invention to prevent a rewinding of a take-up shaft and detect a rotation angle in a tube restrictor including a tube guide port provided therebetween.

[0004]

Technical means for solving this technical problem are as follows: (a) a substantially U-shaped cut is formed in a support plate to form a tongue; Provide small projections,
(C) A disk is provided at one end of the winding shaft and a locking portion is provided at the other end for engagement with the bearing edge. (D) A number of concave portions which engage with the small projections when the winding shaft is rotated are formed on the outer peripheral edge of the disk. Are formed at regular intervals along the line. The second technical means is that, in the first technical means, (e) tongue pieces having small projections are formed on the left and right support plates, and (f) the winding shaft is supported by being able to be inserted and removed. thing,
It is.

Since the tongue formed by providing a substantially U-shaped cut in the support plate is cantilevered, it is possible to bend its tip end like a spring and to project outward from the tip end. The small projections rise and fall on the surface of the support plate in accordance with the bending of the tongue pieces. Since the take-up shaft is provided with a disk at one end and an engagement portion with a bearing edge at the other end, the disk rotates together with the take-up shaft without separating from the support body, The outer peripheral edge of the plate contacts the small protrusion. Since a large number of recesses that engage with the small projections are formed at equal intervals along the outer peripheral edge of the disk, the projections float up at the positions of the recesses with the rotation of the disk, and in other parts, The projection is pushed down by the disc and sinks. Therefore, the winding shaft is click-stopped at a constant angle.

The rotation of the disk is restricted by the projection as long as the concave portion is engaged with the small projection, and the winding shaft can be prevented from rewinding unless an external force is applied. By the click stop, the rotation angle of the disk can be detected with a fingertip. Therefore, there is an advantage that the amount of the filled material can be grasped. In addition, since the small protrusion is provided on the tongue piece that bends in a spring shape, it is possible to suppress wear during rotation of the disk, and it is possible to exhibit an effect of engaging with the concave portion of the disk for a long time.

When tongue pieces having small projections are formed on the left and right support plates, and the winding shaft can be inserted and detached and supported.
The rotation operation of the winding shaft can be performed on either the left or right support body side, so that it can be used irrespective of which of the left and right arms is the working arm. Further, even if the small projection of the tongue piece is worn, there is an advantage that the click-stop can be performed by using the other unworn small projection by replacing the winding shaft from the opposite side.

[0008]

FIG. 1 is a perspective view of a diaphragm 1 according to the present invention.
FIG. 2 is a front view thereof. A cover 4 is straddled on the upper portions of the left and right support plates 2 and 3, and the front portion of the cover 4 is formed of a gentle curved surface 5 so that it can be easily supported by a finger during winding. A bar 6 is laid between the lower front portions of the left and right support plates 2 and 3 to reinforce the front portions of the support plates 2 and 3 and to cover
And a front end of the tube form a tube guide port 7 (not shown).

Holes 8 and 9 are formed in the left and right support plates 2 and 3 and a winding shaft 11 is inserted therein. A slit 12 is formed in the winding shaft 11, and the bottom of a tube (not shown) is engaged with this slit. Note that triangular projections 13 are alternately projected from the inner wall of the slit 12 so that the bottom of the inserted tube can be reliably supported. The leading end of the winding shaft 11 is divided into two parts 14, and an engaging protrusion 15 is provided at the leading end thereof so as to engage with the opening edge of the hole 9 so as to be able to be inserted and removed. Therefore, it is possible to easily remove the winding shaft 11 by picking the split 14. A disk 16 is fixed to the base end side of the winding shaft 11 and a knob 18 is projected outside the disk 16. The knob 18 has one end (the lower portion in FIG. 1) configured to be long so that rotation can be smoothly performed even if a resistance is applied to the disk 11. Twelve concave portions 17, 17 are engraved on the periphery of the disk 16 at equal intervals. A U-shaped notch 21 is provided on the outer side of the support plates 2 and 3, and a tongue piece 21 is formed on the outer side of the distal end so that the recess 17 can be engaged with the tongue 21. A hemispherical small projection 23 is provided to project.

In the above embodiment, the winding shaft 11 is supported by the holes 8 and 9 formed in the support plates 2 and 3. However, a concave groove or a C-shaped concave portion is formed in the support plate, and It may be inserted and removed. Further, the disk 16 is configured to be rotated by the knob 18, but the disk 16 may be rotated using the outer peripheral edge of the disk 11. It is desirable that the number of the concave portions 17 engraved on the periphery of the disk 11 is about 8 to 16, but it may be appropriately increased or decreased according to the size of the disk 11 or the thickness of the winding shaft. The projection 23 has a hemispherical configuration, but may have a semi-elliptical configuration.

[Brief description of the drawings]

FIG. 1 is a perspective view of a tube restrictor according to the present invention.

FIG. 2 is a front view of a tube drawer.

FIG. 3 is a cross-sectional view taken along a line A-A ′ in FIG. 2;

[Explanation of symbols]

1 drawer, 2 and 3 support plate, 7 guide port, 11 winding shaft, 16 disk, 17 engagement recess, 21 tongue piece, 23 small projection

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hideo Torii 402, Shinkai, Miyoshi-cho, Iruma-gun, Saitama Prefecture F-term (reference) 3E065 FA11 GA01 GA03 GA04 JA27

Claims (2)

[Claims] 1. A winding shaft provided with a slit for locking a bottom of a tube in an axial direction, left and right support plates provided with bearings for rotatably supporting the winding shaft, and provided between a front portion of the supporting plate. In the tube squeezing device comprising the tube guide port, a substantially U-shaped cut is formed in the support plate to form a tongue piece, a small projection is provided outside the tip of the tongue piece, and a disc is provided at one end of the winding shaft. A tube squeezing device in which a locking portion with a bearing edge is provided at the other end, and a number of concave portions which engage with the small projections when the winding shaft is rotated are formed at equal intervals along the outer peripheral edge of the disk. 2. The tube squeezing device according to claim 1, wherein tongue pieces having small projections are formed on the left and right support plates so that the winding shaft can be inserted and withdrawn and supported.