JPH0438239B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is a holder for a rod-shaped member such as a rod-shaped eraser, a tooth yoke, a rod-shaped graphite, and/or a cutter, which includes a tubular shaft and a holder for a rod-shaped member such as a rod-shaped eraser, a tooth yoke, a rod-shaped graphite, and/or a cutter. a slider arranged to be movable in the axial direction, operable via a push button and fixed in a locking position;
The present invention relates to a type that mainly includes a tightening body, a guide portion, and a receiving portion in addition to the push button.

PRIOR ART A holder of this type is known, for example, from Danish Patent No. 70798. In this known holder, a curved leaf spring is fixed to a slider guided inside the shaft, and this leaf spring engages with a locking part inside the shaft. The leaf spring is released from the locked position by applying external pressure to a push button connected via a pin. The slider is then slid within the shaft. The disadvantage of such a construction is that in order to slide, the push button must always be pressed at right angles to the shaft axis and/or the holding force is insufficient so that it does not lock when working pressure is applied. The connection may be unexpectedly disconnected.

Further, according to US Pat. No. 1,494,736, a slider is known which consists of a two-armed spring that engages with locking portions provided at opposite positions on a shaft. The spring arms extend outwardly beyond the catch and are each provided with a push button. By applying pressure to the push button, the spring arm is released from the lock and the slider is slid within the shaft. In this known slider, the user can:
You always have to press two push buttons with two fingers to slide the slider.
Such work is troublesome and impractical.

Further, according to U.S. Pat. No. 3,756,727, a spring-elastic slider guided within the shaft is provided, and two locking edges of the slider engage in locking holes provided in the shaft. A holder of the type is disclosed. A push button on the slider projects outwardly through an axially extending guide slit on the shaft. By applying pressure to the pushbutton, the locking edge is released from the locking hole and the slider is allowed to slide within the shaft. In this known holder, it is necessary to always apply perpendicular pressure to the push button of the slider in order to slide the slider.

Known rod-shaped eraser holders have a slider equipped with a relatively movable metal spring that engages a catch provided in the shaft. The slider can be easily slid through the pushbutton, which is slidable in the guide slit extending between the locking portions, without having to press the pushbutton. However, such a structure consists of many parts and does not firmly engage the locking part, so that it cannot be held securely enough when an axial force is applied to the held rod-shaped member (rod-shaped eraser). It is functionally unsatisfactory because no power is obtained.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to have a simple structure that can be easily operated, for example, by applying pressure in the axial and/or radial direction to a pushbutton, and that also has a structure that allows the push button to be easily operated by applying pressure in the axial and/or radial direction. It is an object of the present invention to provide a holder for a rod-shaped member that can reliably support the rod-shaped member when an axial force is applied thereto.

Means for Solving the Problems According to the present invention which solves this problem, the pushbutton is configured as a two-armed lever together with the tightening body, and is configured to be able to pivot around a common pivot point, The receiving part and the clamping body are operatively connected via the pivot point in order to convert the pressing force acting on the receiving part in the axial direction into a force acting in the radial direction and transmitting this converted force. , the shaft is provided with a clamping surface or locking hole and a guide slit, the guide slit being arranged opposite the clamping surface or locking hole.

Effects and Effects According to the invention, a part of the slider is guided in the shaft as a guide part, and this guide part connects the other two parts of the slider, namely ( It is connected to a push button (which is guided in a guide slit of the shaft and which projects outwardly through this guide slit) and to a tightening body (which acts on the inner side of the shaft facing said guide slit). With this, the pushbutton and the tightening body are
Due to the pivoting movement about a common pivot point, the clamping body is lifted from the inside of the shaft when external radially directed and/or axially directed forces act on the push button.

On the other hand, when a force (=working force) in the opposite direction is applied to the guide part in the axial direction, this force will cause the clamping body to be pressed against the inside of the shaft.
It is transmitted to the clamping body around the pivot center point. The holder according to the invention can therefore be easily operated during the feed movement, the user only having to apply a radial force on the operating lever from the outside, without having to unlock the operating lever beforehand. This is because this unlocking operation is forcibly performed when the push button is pressed.
On the other hand, via the receptacle and the pivot point,
When an effective working force is applied, a braking or locking force acting in the radial direction is generated by a structurally defined inherent spring force or pressure spring between the guide part and the clamping body and/or the push button. is additionally strengthened.

Embodiment Next, the structure of the present invention will be specifically described with respect to an embodiment shown in the drawings.

The holder for the rod-shaped member shown in FIG.
It consists of a shaft 10 with a guide slit 12 and a number of locking holes 11 arranged on the opposite side of the guide slit 12 in the diametrical direction of the holder. The shaft 10 is closed at its rear end by a cap 13 and has a slider 20 guided so as to be axially slidable in a shaft hole 19.
and a rod-shaped member 30 (in this embodiment, for example, a rod-shaped eraser, a writing instrument, a rod-shaped graphite, a chiyoke, etc.) are received. As the slider 20,
Mainly, the pushbutton 21 and the tightening body 22
It consists of a guide part 23 and a receiving part 29,
A pivot center point is formed by the free recess 28 . A locking protrusion 24 is installed on the tightening body 22, and this locking protrusion 24 is in the normal position,
That is, in order to lock the slider 20 in the working position and the non-working position, it engages in the locking hole 11 at the desired axial feed position. In this case, since the receiving portion 29 is formed as a brush tube-shaped portion that tightly holds the rod-shaped member 30 in the axial direction, this brush tube-shaped portion can be easily slid together with the slider 20 in both axial directions. can.

In the holder shown in FIG. 2, a locking system or holes 11 are provided on the side of the holder, for example in a clip 14 attached to the closed shaft 10 at the rear end by means of a cap 13. It is shown that the bar-shaped member 30 is disposed perpendicularly to the other, and that the rod-shaped member 30 slightly protrudes.

In FIG. 3, the opposite side of the holder shown in FIG. 2 is shown. In this FIG. 3, the rod-shaped member 3
0, shaft 10, cap 13, clip 14
In addition, the guide slit 12 and the push button 21 of the slider 20 are shown.

Starting from the position shown in FIG. 4, functional movements, e.g. unlocking, are carried out by pressing the push button 21 in the radial direction, and feeding movements are carried out simultaneously with the push button 21 on the shaft 10.
The return movement is carried out by moving the entire slider 20 together with the rod-like member 30 (in this example) to the left in the drawing, and the return movement is carried out by moving the slider 20 with the rod-like member 30 held in the receptacle 29. This is done by sending it to the right side in the drawing together. In this embodiment, the inside of the shaft hole 19 and the guide slit 12 are
Of course, the sliding movement within the locking protrusion 24
This is possible only when the locking between the locking hole 11 and the locking hole 11 is completely released. For this purpose, the free cutout 28 is
The push button 21 must be large enough to lift the clamping body 22 through the pivot point 27. The guide part 23 is connected to the receiving part 29
At the same time, it receives the pressing force of the push button 21.

FIG. 5 shows the flow of forces within the holder other than the motion shown in FIG. Shaft 10
The working pressure exerted via the bar element 30, the receiving part 29, the guide part 23, the pivot point 27 in the opposite direction, for example during erasing, writing, painting, cutting, etc. This creates a pressure that acts partially vertically and axially on the clamping body 22. This pressure produces and/or further strengthens the engagement or axially opposing holding forces between the locking hole 11 and the locking projection 24 . In this case, push button 21
The slider 20, which is not loaded through the shaft hole 19, is held immovably in the shaft bore 19.

In the modified embodiment of FIG. 6, the slider 20
The tightening body 22 is provided with a tightening pad 25, and this tightening pad 25 is attached to the shaft 10.
is held in a frictionally connected manner by the clamping surface 15 of the shaft hole 19 of. In this case, the radial clamping pressure is generated by the optionally reinforced inherent spring action of the components of the slider 20, which include the bar 30, the receiving part 29, the guide part 23, the pivot point 2
The working pressure is enhanced through the unique arrangement, shape and position of 7.

By pressing the pushbutton 21 in the radial direction, the clamping body 22 closes the free notch 2.
Since the slider 20 is lifted from the clamping surface while narrowing or widening the slider 20, the slider 20 can be easily moved in the axial direction. The drawing shows two positions: a released position and a tightened position.

A modified embodiment with respect to FIG. 6 is shown in FIG. 7 (the structural solution is essentially the same). The clamping surface 15 in the shaft 10 is covered by a damping layer 16, which cooperates with a clamping pad 25 on the clamping body 22 of the slider 20 in a particularly good frictional manner.

In order that the axial movement of the slider 20 is not hindered by the damping layer 16 provided in the shaft hole 19, the guide part 23 and the receiving part 2
9 is provided with a notch 26 penetrating in the axial direction, and this notch 26 prevents the guide part 23 and the receiving part 29 from coming into contact with the damping layer 16. If necessary, a notch 26 of this type may be formed in the rod-shaped member 30 to be inserted, or the rod-shaped member 30 may be freely formed into other shapes.

[Brief explanation of drawings]

1 is a schematic longitudinal sectional view of a holder with a slider and a retained bar member according to one embodiment of the invention, and FIG. 2 is a schematic longitudinal sectional view of a holder according to another embodiment of the invention. Side view, Figure 3 is the 2nd
FIG. 4 is an enlarged view of the slider showing the normal functional movement applied to the slider; FIG. 6, an enlarged view of the slider showing force states other than the motion shown in FIG. 4.
7 and 7 are respectively diagrammatic longitudinal sections of a holder according to different variant embodiments of the invention, showing respectively the released position and the tightened position, and FIG.
FIG. 3 is a cross-sectional view of the holder according to the figures along line A-B; 10... Shaft, 11... Locking hole, 12...
Guide slit, 13... Cap, 14... Clip, 15... Tightening surface, 16... Braking layer,
17... Pressing spring, 18... Contact surface, 19... Shaft hole, 20... Slider, 21... Push button, 22... Tightening body, 23... Guide portion, 24... Locking protrusion, 25... ...Tightening pad, 26...Notch, 27...Turning center point, 28
. . . Free notch, 29 . . . Receiving portion, 30 . . . Rod-shaped member.

Claims (1)

[Scope of Claims] 1. A holder for a rod-shaped member, which includes a tubular shaft 10, a push button 21, which is arranged to be movable in the axial direction within the tubular shaft 10, and a push button 21.
It has a slide 20 which can be operated through the locking position and can be fixed at the locking position, and the slider 20
However, in a type that mainly has a tightening body 22, a guide portion 23, and a receiving portion 29 in addition to the push button 21, the push button 21 and the tightening body 22 are configured as a two-arm lever, and a common feature is used. It is configured to be able to pivot around a pivot center point 27, and converts the pressing force acting on the receiving portion 29 in the axial direction into a force acting in the radial direction.
In addition, in order to transmit this converted force, the receiving part 29 and the clamping body 2 are connected via the pivot center point 27.
2 are operatively connected to said shaft 10.
A rod-shaped member characterized in that a tightening surface 15 or a locking hole 11 and a guide slit 12 are provided, and the guide slit 12 is arranged facing the tightening surface 15 or the locking hole 11. holder for. 2. The holder according to claim 1, wherein the tightening body 22 has a locking projection 24 or a tightening pad 25 that prevents slippage. 3. Holder according to one of the claims 1 to 3, characterized in that the clamping surface (15) is arranged in the shaft hole (19) and is formed as a damping layer (16). 4. Holder according to any one of claims 1 to 3, wherein the guide part 23 has a penetrating cutout 26 extending axially in the area of the damping layer 16. 5. The holder according to any one of claims 1 to 4, wherein the receiving portion 29 is provided with a holding means for fixing the rod-shaped member 30 to be received in the axial direction.