JPH052765Y2 - - Google Patents

Description

[Detailed Description of the Invention] <<Industrial Application Field>> The present invention relates to a stopper suitable for use in preventing movement of doors, transportation equipment, beds, etc.

<<Prior Art>> The applicant has already proposed a stopper as shown in FIG. 7, which is an improved version of the existing pedal-type stopper.

This consists of a rod b fitted into a hollow main body a with the rod b protruding from the openings at both upper and lower ends.
is attached by making it slidable vertically and applying a pushing force from a spring (not shown).
A rotary engager (not shown) is rotatably supported on the rod b, and by pushing down the rod, the rotary engager and the main body a are engaged and disengaged, thereby moving the rod b up and down. The rod b can be held at two height positions, and a shield cover c is attached to the upper end of the rod b, which is fitted onto the main body a so as to be able to slide vertically.

To use this, all you need to do is to attach the main body a to the door d and step on the shield cover c, which locks the rod b in the depressed state as shown on the right side of the same figure. is possible,
Further, when the shield cover c is further depressed in this state, the lock is released and the shield cover returns to the upper position as shown on the left side of the same figure.

The present invention attempts to add the following improvements to the above.

That is, when the stopper is used, the stepping distance A of the shield cover c and the protruding distance A1 of the tip of the rod b are approximately the same length, so as shown in the figure, a considerable amount of space is left on the floor surface e on the inside and outside of the door d. If there is a step f, the protrusion amount A1 of the rod b is
Since it is necessary to set the step larger by the step f, it is necessary to increase the stepping distance A of the shield cover c, which not only increases the overall length H and makes it larger, but also makes it difficult to raise the foot higher. Therefore, there is a defect that the operability of pressing down becomes poor.

《Problems to be solved by the invention》 The present invention was developed in view of the above-mentioned problems, and as a result, the slide piece is attached to the rod that is attached to the main body so as to be slidable in the vertical direction. In addition, the slide piece has
The slide piece can be held in two positions (up and down) by engaging and disengaging with the main body.A rotary engager and a pinion are rotatably supported, while racks are attached in the axial direction on the inner surface of each side wall of the main body and the rod. By providing a long rod and meshing with the pinion, the amount of protrusion of the rod can be approximately doubled relative to the predetermined depression distance of the slide piece. With the same stepping distance as the conventional model, it can handle a floor level difference that is almost twice as large as that of the conventional model, and by allowing the protrusion length to be large relative to the stepping distance, the overall size can be reduced, and the manufacturing cost is low. Its purpose is to provide a stopper for doors, etc.

<Means for Solving the Problems> In order to achieve the above-mentioned object, the present invention includes a rod that is slidable vertically inside the main body and protrudes from openings at both upper and lower ends of the main body. A slide piece is fitted into the rod so as to be slidable in the vertical direction and protruded from the upper end opening of the rod. It is attached by applying a pushing force from a spring, and a rotary engager and a pinion are rotatably supported on the slide piece, respectively.
By pushing down the slide piece, the slide piece can be held in two positions (up and down) by the set engagement and disengagement between the rotary engager and the main body, and the respective racks are attached to the main body and the rod. The purpose is to solve the above problem by having long opposed axially arranged pinions and meshing them with the above-mentioned pinion. In detail, as shown in Figures 1 to 6,
The main body 1 is formed into a hollow vertically elongated shape, and has openings 1a and 1b formed at its upper and lower ends, respectively, and also has an opening 1c formed at its back.

A back cover 2 is fixed to the back opening 1c of the main body 1 by a desired appropriate fitting means (not shown), and the main body 1 is attached to the door 3 with screws 4...
The main body 1 is fixed to the lower end of the door 3 by being fixed to the base 5 fixed by the set screws 6.

Rods 7 are inserted into the main body 1 so as to be slidable in the vertical direction, protruding from openings 1a and 1b at the upper and lower ends of the main body 1, respectively.

The rods 7 are all hollow first rods 7.
a. The second rods 7b are fitted to each other so as to be able to slide in the axial direction, and both ends are supported on the inner surface of the bottom wall of the second rod 7b and the spring receiver 7c installed inside the first rod 7a. A surface press spring 8 is installed inside and formed so as to be able to contract or expand in the axial direction, and connects the lower end of the first rod 7a and the second rod 7a.
Engagement parts 9 and 10 provided corresponding to the upper ends of b
are axially engaged with each other to prevent disengagement, and the rod 7 is held at its extended length against the spring as shown in FIGS. 1 and 2.

Further, when the rod 7 is pressed against the floor surface 11 by the elasticity of the floor presser spring 8, the lower end of the rod 7 is attached in the axial direction so that the lower end of the rod is in close contact with the floor surface 11. An elastic body 7d made of rubber or the like that can be compressively deformed or elastically restored can be attached.

Further, a slide piece 12 having a hollow portion 12a at least in the upper portion is fitted into the first rod 7a of the rod 7 so as to be slidable in the vertical direction.

One side of the hollow part 12a of the slide piece 12 is opened vertically, and a spring receiver 13 projecting perpendicularly from the cover plate 2 is inserted from the opening to the lower end side of the hollow part 12a. A push-up spring 14 is installed inside the slide piece 12 with its ends supported by the spring receiver 13 and the top wall 12d of the slide piece 12, respectively, and the push-up force of the spring 14 is applied to the slide piece 12. There is.

The slide piece 12 may be exposed as it is, but in the illustrated example, a shield cover 15 is attached to the main body 1 by screws 16 so as to be slidable in the vertical direction. 15 and the slide piece 12 have a lower thick wall portion 12c in the slide piece 12.
is in contact with the spring receiver 13, so that the first
It is held at the upper limit position shown in FIGS. 2 and 2, and is prevented from moving upward.

Further, the thick wall portion 1 of the slide piece 12
On one side of 2c, that is, on the back wall surface in the illustrated example,
The rotary engagement element 17 is rotatably and laterally supported, and a pinion 18 is rotatably and laterally supported on the right side wall surface of the thick portion 12c.

This rotary engager 17 has a predetermined width,
Approximately V-shaped recesses 19, 19' in front at both upper and lower ends
is formed with a suitable height facing outward and symmetrically, as shown in the illustrated example.
It may be formed integrally with the front end of the cylindrical shaft 17a, or, although not shown, may be formed as a separate member from the cylindrical shaft 17a, with its center rotatably supported on the front end surface of the cylindrical shaft 17a. I can do it.

Therefore, in the illustrated example, the slide piece 12
The cylindrical shaft 17 is attached to the back wall of the thick portion 12c in
A shaft hole 20 that fits the shape of the shaft hole 20 is horizontally recessed, and the cylindrical shaft 17a is fitted thereinto so that the rotary engaging element 17 is rotatably supported by the slide piece 12.

Further, as clearly shown in FIG. 6, on the inner wall surface of the back cover 2 facing the rotary engaging element 17 of the main body 1,
A guide groove portion 21 is fitted so that the rotary engager 17 can be guided vertically in a predetermined direction, that is, with its recesses 19 and 19' facing up and down. a rotation control section 22 that is in the recess 19' and abuts one side thereof to rotate the rotary engager 17 by a predetermined angle in a predetermined direction;
is rotated by a predetermined angle by the rotation control section 22, and the locking section 23 engages with one side of the recessed section 19 at the top thereof to hold the slide piece 12 in the depressed position. , are arranged in a vertical arrangement.

When the slide piece 12 is pushed up and held in the position shown in FIGS. 1 and 2 by the push-up spring 14, the rotary engager 17 is held in the A position in FIG. The rotary engager 17 is pushed down together with the slide piece 12, and the locking portion 2 is at position c in FIG.
3 to hold the slide piece 12 at the lock position shown in FIG. After being rotated by a predetermined angle by the locking portion 22, the locking portion 2 returns upward by a stroke l″ from the B position to the C position.
Therefore, the slide piece 12 requires a depression distance L' commensurate with the stroke l from the A position to the B position.

In addition, racks 24 and 25 are provided on the side wall of the main body 1, that is, on the inner surface of the back cover 2, and on the inner surface of the front wall of the first rod 7a of the rod 7 facing thereto, respectively.
are formed to be long in the axial direction (vertical direction in the figure) and to face each other, and the racks 24 and 25 are engaged with the pinion 18, and by stepping on the shield cover 15, the slide piece 1
2 is lowered together with a pinion 18, and since the pinion 18 is engaged with the rack 24 of the main body 1, the pinion 18 is lowered while rotating in the direction of arrow g shown in FIGS. 18 and the rack 25 are engaged with each other so that the rod 7 projects downward as shown in FIG.

That is, the slide piece 12 and pinion 18 are lowered by the same stroke with respect to the depression distance L' of the shield cover 15, and the rod 7 is further lowered with respect to the slide piece 12 due to the rotation of the pinion 18. The rod 7 is designed to have a protrusion length L that is approximately twice the depression distance L'.

Further, the pinion 18 has a rotary shaft 27 passing through a shaft hole 26 extending laterally through the thick wall portion 12c of the slide piece 12,
It is rotatably supported in a concave portion 28 formed on one side and enlarged so as to communicate with one end of the shaft hole 26, and spacers 29, 29 are fitted to both ends of the rotating shaft 27. Exterior and the spacer 29,2
9 is fitted into the guide holes 30, 30 extending longitudinally through the left and right side walls of the first rod 7a so as to be slidable in the vertical direction, and then the above-mentioned Guide grooves 31, 31 are vertically long and facing each other on the inner surfaces of the left and right side walls of the main body 1.
It is fitted in such a way that it can slide freely in the vertical direction.

Here, the main body 1 is constructed by fixing the base 5 to the door 3 etc. with screws 4, and after installing the rod 7, push-up spring 14, rotational engager 17, and pinion 18, It is preferable to fix the cover 2 to the door 3 or the like by fitting and fixing the lid 2 and then fixing the main body 1 and the base 5 with a set screw 6.

In FIG. 3, L'' indicates the compression margin of the floor presser spring 8, 11a indicates the level difference in the floor surface 11, and in FIG. 2, H indicates the total length of the stopper.

In order to use the above-mentioned structure as a stopper for a door, etc., the main body 1 should be placed at the bottom of the door 3, and the distance from the lower end of the rod 7 to the floor 11 should be the compression distance of the floor presser spring 8 from the above-mentioned protrusion length L. Fix it so that it corresponds to the length minus L″.

After installing the stopper in this way, after opening this door 3, open the shield cover 1.
5 to lower the slide piece 12 against the spring force, and as a result, the pinion 18 also descends together with the slide piece 12.
4, the pinion 18 and the rack 2
The rod 7 with which the rod 5 is engaged is moved downward, and the rod 7 is lowered and its lower end hits the floor 11. However, when the shield cover 15 is further stepped on, the rod 7 is moved downward. Side 1
1 prevents further descent, the rod 7 itself contracts in the axial direction by the compression margin L'' of the floor presser spring 8, and the elastic force stored in the spring 8 causes the rod 7 to The tip is landed on the floor 11 and functions as a stopper.

At this time, the rotary engager 17 is lowered by a stroke l from the A position to the B position in FIG. The orientation is rotated 45 degrees.

Next, when the shield cover 15 is released, the slide piece 12 is lifted up by the spring force together with the rotary engager 17, but at this time, the rotary engager 17, which is now oriented diagonally sideways, is moved up into its recess 19.
One side of the rotary engager 17 is engaged with the engagement portion 23, and one side of the recessed portion 19' is brought into contact with the side wall of the guide groove 21, whereby the rotary engager 17 is engaged with the illustrated position C. , this allows the position to be maintained.

This prevents Rod 7 from rising,
As shown in FIG. 3, the lower end of the rod 7 and the floor surface 11
The door 3 is locked in the open position by the force of frictional engagement.

Next, when the shield cover 15 is further depressed from the above-mentioned door stop state, the rod 7 itself is reduced in the axial direction against the spring force, so the rotary engager 17 descends from the C position to the B position, and its side wall Since the side abuts against the rotation control section 22, the rotational engager 17 is rotated to the left at the B position.

Next, when the shield cover 15 is released, the slide piece 12 is raised together with the rotary engager 17 due to the elastic force of the spring 14. is guided by the side wall surface of the guide groove part 21, and the rotary engager 17 is returned in the same direction as in the A position, so that it can rise along the guide groove part 21, and the slide piece 12 rises to the upper limit. As a result, the rotary engagement element 17 returns to the A position.

At this time, the slide piece 12 is
However, the pinion 18 is raised while being rotated by the rack 24 of the main body 1 in the direction opposite to the arrow g shown in the figure, so the engagement between the pinion 18 and the rack 25 causes the rod 7 to move upward. The stop state is released by the feed operation and the stop state is lifted to the upper limit.

In this way, the door 3 is brought into the stopped or unstopped state, and the slide piece 12 and pinion 18 are lowered or raised by a stroke corresponding to the depression length L' of the shield cover 15, while the rod 7 is pinion 18
However, since the rod 7 is lowered or raised by a stroke corresponding to the lowering or raising stroke of the pinion 18, the actual protrusion length L of the rod 7 is
is the sum of the downward or upward stroke of the slide piece 12 and pinion 18 and the downward or upward stroke of the rod 7 relative to the pinion 18, that is, the depression distance of the shield cover 15.
The length will be twice that of L'.

<<Effect of the invention>> Since the present invention is constructed as described above, when the invention is fixed to the lower part of the door 3 and used as a door stopper etc., when the door is open,
When pressing down on the slide piece 12, the rod 7 is lowered and pressed against the floor 11 to hold the door 3 at a desired opening angle. The floor surface 11
In this case, even if there is a step 11a on the inside and outside of the door 3, it is possible to deal with a step that is approximately twice as large as the step-in distance or more with the same step-in distance as in the conventional example,
In addition, in order to increase the protrusion length of the rod 7, in the conventional example, the total length of the stopper would have to be increased, but according to the present invention, such a need is eliminated, so that the length of the stopper can be increased. In the case of a longer protrusion length, not only can the entire structure be made smaller, but the depression distance can be reduced to approximately 1/2 of the protrusion length mentioned above, improving operability.
Since the back cover 2 and the rod 7 can be molded as a pair, the assembly cost is low, and the whole can be provided at low cost.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view showing an embodiment of a stopper used for a door or the like according to the present invention, and FIG. 2 is a longitudinal sectional side view showing the door stop of the same embodiment in a released state.
FIG. 3 is a longitudinal sectional side view of the same door in the stopped state, and FIGS. 4 and 5 are the - lines in FIG. 1, respectively.
6 is a front view showing the relative positions of the rotary engagement element, the guide groove, the locking part, and the rotation control part in the same embodiment. FIG. 4 is a side explanatory view comparing the door open state and the door stopped state. DESCRIPTION OF SYMBOLS 1... Main body, 1a... Upper end opening, 1b... Lower end opening, 7... Rod, 12... Slide piece, 14... Spring for pushing up, 17... Rotating engager, 18... Pinion, 24 ,25...Lack.

Claims (1)

[Scope of utility model registration request] A rod is fitted into the main body so as to be slidable in the vertical direction, with the rod protruding from the upper and lower openings, respectively, and a rod is fitted into the main body with the rod protruding from the upper opening. A slide piece is fitted to the main body so as to be slidable in the vertical direction, and is attached by applying a pushing force from a push-up spring. By rotatably supporting the respective slide pieces and pushing down the slide pieces, the slide pieces can be held in two positions, upper and lower, through preset engagement and disengagement between the rotary engager and the main body, and A stopper for a door, etc., in which the main body and the rod are provided with long racks facing each other in the axial direction, and these racks are engaged with the pinion.