JPH085834Y2 - Rod-shaped material feeding device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention accommodates rod-like objects such as lip collars, crayons, passes, and erasers in a case, and slides the knob to freely take in and out of the case. The present invention relates to a device for feeding out a rod-shaped object that can be locked at the position.

(Prior Art) Conventionally, a slit in the longitudinal direction and a large number of locked portions are formed in a case, and a slider knob for holding a rod-shaped object inserted into the case is projected from the slit in the longitudinal direction.
Various types of rod-shaped object feeding devices that can slide along a slit have been proposed.

An example is shown in FIGS. The terms up, down, left, and right used in the description are used in accordance with the drawings.

Reference numeral 101 denotes a rectangular tube-shaped holder which is inserted into the flat rod-like object 105 at a loose interval. A slit 102 is formed in the center of the upper surface 101a of the holder 101 in the longitudinal direction, and saw-tooth cutouts 102a that are locked portions are formed on both sides of the slit 102 so as to face each other. 103
A connecting part 104 connecting the right ends of rod-shaped objects 105 is continuously provided by a slider that slides in the holder 101. Reference numeral 106 is a substantially V-shaped locking leaf spring, and the bottom portion 106a is provided on the slider 103 and the recessed portion 103a on the upper surface.
And the upper end of each end has a gentle curved surface, and the locking portion 106b formed by bending the tip diagonally downward is inserted into the serrated notch portion 102a by its own elasticity without rattling, and slides to the left and right. Is being blocked. 107 is approximately V inserted in the locking leaf spring 106
A knob on the top surface 101a of the holder 101, which is a character-shaped pressing member.
08 and the connecting piece 109 that can pass through the slit 102 are integrally connected.

(Problems to be solved by the invention) The feeling of operation during sliding, that is, the feeling of use.

When the case is made of metal, the inner diameter can be made substantially constant from one end to the other end. Therefore, the operation feeling when the slider slides in and out of the case is substantially constant.

However, when molding the case with a synthetic resin, it is necessary to adopt injection molding in consideration of the shape having a slit in the longitudinal direction and a large number of locked parts. In this case, the mold release property between the product and the core pin and It is necessary to use a core pin with a taper to prevent damage to the product and the mold.
Therefore, the inner diameter of the case becomes, for example, a so-called flared shape in which the same taper as that of the core pin is provided from one end to the other end. When such a case is used, the resistance when sliding differs depending on the slider position, the operation feeling is not constant, and when the taper angle becomes extremely large, it is locked as shown in Fig. 7. The leaf spring 106 may be disengaged from the sawtooth cutout 102a that is the locked portion, or the locking leaf spring 106 may be deformed as shown in FIG. 8 and the resistance during sliding may become very large. There was a problem.

Therefore, an object of the present invention is to provide a rod-shaped object feeding device having a case made of a synthetic resin and having a structure in which a feeling of operation when sliding a slider is substantially constant.

(Means for Solving the Problems) The present invention has been made to achieve the above object, in which a case is formed with a longitudinal slit and a large number of locked portions, and the case is inserted into the case. Knob of the slider that holds the rod-shaped, protruding from the slit in the longitudinal direction,
In a rod-shaped object feeding device capable of sliding along a slit, the case is a synthetic resin molded product, and a taper that expands toward the opening is formed on the inner wall of the case and faces the slit of the case. The gist of the present invention is a rod-shaped object feeding device, characterized in that a rib whose upper end is substantially parallel to the inner wall of the slit is provided on the inner wall.

(Embodiment) FIGS. 1 and 2 show an embodiment of the present invention. As in the description of the conventional technique, the terms of up, down, left, right, front and back follow the figure.

Reference numeral 1 is a case made of an elongated flat box made of synthetic resin, which is molded by injection molding. Narrow upper surface of case 1
A slit 2 is formed at the center of the longitudinal direction of the la 1a, and saw-tooth cutouts 2a, which are engaged portions, are formed on both sides of the slit 2 so as to face each other. Further, the inner wall of the case 1 is tapered such that the left end opening has a large diameter in the longitudinal direction from the right end to the left end of the case, and the rib 1c is formed in the longitudinal direction on the inner wall of the narrow lower surface 1b. is there. The rib 1c is formed so that the right end of the case is low and the left end is high so as to correspond to the change in the inner diameter of the case due to the taper. That is, the rib 1c 'is formed so as to be substantially parallel to the inner wall of the slit 2.

Reference numeral 3 denotes a slider that slides in the case 1, and a connecting portion 4 that connects the right ends of flat rod-shaped objects 5 is continuously provided.

Reference numeral 6 is a substantially V-shaped locking plate spring, and the bottom 6a is placed in the recess 3a on the upper surface of the slider 3, the both ends are formed into a gentle curved surface, and the locking portion 6b formed by bending the tip obliquely downward is provided. It elastically fits into the sawtooth-shaped notch 2a without backlash and prevents sliding to the left and right. 7 is a substantially V inserted in the locking leaf spring 6.
It is a letter-shaped pressing member, and is integrally connected by a knob 8 on the upper surface 1a of the holder 1 and a connecting piece 9 that can pass through the slit 2.

 Next, the operation will be described.

In the stationary state, both side locking portions 6b of the locking leaf spring 6 are fitted in the notches 2a without play. When the bar 8 is pushed in or out of the case, if the knob 8 is pressed in any of the left and right directions, the locking portion 6b in the traveling direction is pushed down by the pressing member 7 passing through the slit 2 and at the same time other locking is performed. Department
6b also has a notch 2a and a notch 2a in which the curved surface of the engaging portion 6b is adjacent.
It abuts on the protruding portion 2b between and and is gently pushed downward from the cutout portion 2a and dragged under the protruding portion 2b to proceed in the traveling direction.

At this time, the slider 3 slides while being in contact with the rib 1c, but since the height of the rib 1c corresponds to the diameter expansion due to the taper, the operation feeling at the time of sliding does not depend on which position of the case. Are almost the same.

3 and 4 show another embodiment of the present invention. Incidentally, the same reference numerals are attached to the parts basically the same as those in the above-mentioned embodiment.

In this embodiment, rod-shaped members are attached to both sides of the slider so that the rod-shaped members can be extended from both ends of the case. Therefore, the difference from the above-described embodiment is as follows. That is, the connecting portions 4 and 4 that connect one ends of the rod-shaped objects 5 and 5 are continuously provided on both sides of the slider 3. The inner wall of the case 1 is formed with a taper that extends from the center of the case toward both end openings in both vertical and front-back directions, and ribs 1c, 1c are formed in the longitudinal direction on the inner wall of the narrow lower surface 1b. The rib
The upper ends 1c 'and 1c' of the 1c and 1c are formed substantially parallel to the inner wall of the slit 102 of the case.

Further, in the present embodiment, the ribs 1e, 1e having the same shape as the rib 1c are provided on the inner walls of the wide surfaces 1d, 1d that face each other and have a taper that expands upward toward the opening.
The upper ends 1e 'and 1e' of e and 1e are provided so as to be substantially parallel to each other.

The operation of this embodiment is similar to that of the previous embodiment, but two rod-shaped bodies can be inserted into and removed from both ends of the case, and the ribs 1e and 1e can prevent rattling of the rod-shaped body at the open end. It also has an effect.

(Advantageous effects of the device) Since the rod-shaped object feeding device of the present invention has the above-described structure, when the slider is slid, the operation feeling is substantially constant at any position of the case, so that a good usability is obtained. Is obtained. Also, the mold releasability is good even when the case is molded, and the mold durability is also excellent, which is a great production advantage.

By adopting the configuration of the present invention, it is possible to prevent warping of the case, improve strength, and prevent sliding failure due to the inclusion of dust and the like.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view of the embodiment, FIG. 2 is a sectional view taken along the line I--I of FIG. 1, and FIG. Fig. 4 is a vertical sectional view of an example.
II-II line sectional view, FIG. 5 is a vertical sectional view of a conventional example, FIG. 6 is a sectional view taken along line III-III of FIG. 5, and FIGS. It is a side view. 1,101 …… Case, 1c, 1e …… Rib, 1c ′, 1e ′ …… Upper end of rib, 2,102 …… Slit, 2a, 102a …… Locked part, 3,
103 ... Slider, 5 ... Stick, 6 ... Lock spring, 7 ... Pressing member, 8 ... Knob

Claims (1)

[Scope of utility model registration request] 1. A longitudinal slit and a large number of locked portions are formed in a case, and a knob of a slider for holding a rod-shaped object inserted into the case is projected from the longitudinal slit and extends along the slit. In a rod-shaped material feeding device capable of sliding, the case is made of a synthetic resin molded product, a taper that expands toward the opening is formed on the inner wall of the case, and the inner wall facing the slit of the case is A rod-shaped object feeding device having a rib whose upper end is substantially parallel to the inner wall of the slit.