JPH055637B2 - - Google Patents

Abstract

1. A device with orientable jaws, adaptable to any support to assure in a stable way the clamping, assembling, separating, keeping in position or mounting on said support of workpieces of different shapes or dimensions, said device with at least two movable parts (1-6) mounted on a support part (2), each of said movable parts being provided with means for the mounting, translating and blocking thereof along said support part, at least one of said movable parts (6) being linked to a jaw member (1a) through a means for continuous and adjustable compression (7), said means being an elastic means such as a coil spring or the like, and at least one of said movable parts (1) constituting itself another jaw member being capable of tipping and thus blocking against said support part (2), said jaw members moving parallel to each other, for the setting as well as for the clamping, the assembling, and the keeping in position, each of said jaw members having possibly one or several jaws or shoes (1-1s and 1a-1as) of indifferent shapes and dimensions, said device being characterized in that said support part (2) is of cylindrical external shape with an uniform cross section, said cross section being of indifferent outline and dimensions, and said support part can be easily interchanged with another cylindrical part having same section but different length ; that said movable parts (1-6) and said jaw members are adapted to turn around said support part that the passage of said support part through said movable parts is cylindrical ; that these movable parts are removable so that overturning said movable parts (1-6) along said support part (2) makes the separating manoeuvre practicable ; that each of said movable parts can be easily interchanged with a semblable part having the same purpose and that the fixing, hooking or fastening lock (3) of said means for the mounting, translating and blocking of said movable parts along said support part is removable ; that said means for continuous and adjustable compression (7) is only limited in stroke, on the side of related jaw member (1a), by the piece(s) to be clamped or separated ; said compression means (7) is removable and can be easily replaced by one another and said jaw members (1-1a) are removable and easily exchangeable.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to machining, woodworking, model assembly work, etc., in which various shapes of workpieces, etc.
The present invention relates to a clamping device for gripping, expanding, assembling, and disassembling dimensional articles.

[Conventional technology]

Such conventional clamping devices typically have two jaw members. These Jyo members are mounted on the column in axially opposed relation to each other, and at least one of the Jyo members is slidable along the column. The reason for arranging the two Jyo members in opposition to each other in the axial direction of the support is that if these Jyo members do not face each other correctly and face in different directions, the gripping force or spreading force on the article may be affected. This is because rotational force is applied to the article, making it impossible to stably hold the article. Furthermore, the distance between the two jaw members can be increased or decreased depending on the size of the article to be held.
In order to apply a pressing force to the held item and to keep it from falling off the jyo member,
A number of means are provided (e.g. notches, pawls, screws, etc., combined with or without springs). For example, French patents 1214695, 1223786, 2347156 and 1368244; US patents 3151897 and 1368244;
Reference is made to No. 3218058, and No. 4202540 and Federal Republic of Germany Utility Model No. G.8111072.3.

[Problem to be solved by the invention]

However, in all conventional clamping devices, the article is gripped with the two jaw members facing each other in the axial direction of the column, and for the reasons mentioned above, they cannot be oriented in a staggered manner. Depending on the shape, it may be difficult or impossible to grasp or expand the product to hold it, or even if the shape of the product itself can be held,
Even if an attempt is made to bring the jyo member close to the article in order to hold the article, it may be difficult or impossible to bring the jyo member close to the article due to interference from surrounding parts.

The present invention has been made to solve the problems of conventional clamp devices, and is capable of holding articles of various shapes better than conventional clamp devices, and is capable of holding target articles. It is an object of the present invention to provide a clamping device that can easily bring a jyo member close to the article.

[Means to solve the problem]

In order to achieve the above object, the clamping device according to the present invention allows the two jaw members to be arranged in different directions relative to each other, and the abutment member abuts against a surface that is stationary with respect to the article. The rotational force applied to the article when it is attached to a support and held with the Jiyo member facing different directions is calculated as follows:
This is offset by bringing the contact member into contact with the stationary surface.

[Effect]

In the clamp device configured as described above, the jaw member can be oriented in a relative direction corresponding to the shape of the object to be held, so that the object can be easily held or not hindered by surrounding parts, etc. , and at that time, the rotational force applied to the article by the holding force of the jyo member is offset by bringing the contact member into contact with the stationary surface, so that the article is stably held by the jyo member.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG.

FIG. 1 is a side view of a clamping device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing the clamping device of FIG. 1 in use.

In the figure, E is a base that supports the clamp device, and 2 is a support that is erected on this base E. The support 2 can have any cross-sectional shape, length, or shape such as a beam, a prism, a rod, a tube, or a cylinder. Although it can be straight, it is preferably straight with a uniform cross-sectional shape over its entire length, and is typically constructed from a cylinder.

Reference numeral 1 denotes a first jaw member that can be detachably fixed at a desired position along the support column 2 and in a desired direction;
2a is a guide means for movably guiding the second Jyo member 1a in the axial direction of the column 2; The guide means 2a are constituted by the column 2 itself, so that the second jaw member 1a is mounted so as to be slidable along the column 2. These jaw members 1 and 1a can also be made into arbitrary shapes and dimensions.

Reference numeral 6 denotes a support member for supporting the second Jyo member 1a, which can be detachably fixed at a desired position along the pillar 2 in a desired direction so as to face the second Jyo member 1a. It's summery. Reference numeral 7 denotes a detachable pressing means disposed between the support member 6 and the second Jyo member 1a for elastically pressing the second Jyo member 1a in a direction away from the support member 6, that is, in a direction away from the support member 6. The support member 6 supports the second jaw member 1a via the pressing means 7. In this embodiment, the pressing means 7 is a compression coil spring and is provided surrounding the column 2. In the illustrated case, the support member 6 is disposed on the opposite side of the second Jyo member 1a from the first Jyo member 1, and thus the second Jyo member 1a is pressed against the first Jyo member 1 by the pressing means 7. is elastically pressed toward the jaw member 1.

Reference numeral 4 denotes a contact member which can be detachably fixed at a desired position along the column 2 and in a desired direction, and in this embodiment is in the form of an arm extending in the radial direction of the column 2.

The first jaw member 1, the support member 6, and the abutting member 4 are each provided with a fixing means 5 including a collar or ring fitted onto the post 2 and a wing nut 3 for fixing it to the post 2.

P is the first Jyo member 1 and the second Jyo member 1
The article S to be held between the article a and the article P is a surface that is stationary with respect to the article P.

Reference numeral 9 denotes a handle having a lever 8. The lever 8 is bifurcated, and both legs of the lever 8 are pivoted to a portion of the support member 6 near the lever 8 by a pivot 6a. 12 is a set of link members, one end of which is connected to the support 2 of the second Jyo member 1a.
The lever 8 is pivotally supported by a pivot tool 13 at the central portion thereof through which the lever 8 is inserted.
and therefore also pivoted to the handle 9.

Next, the operation will be explained. In order to grasp the article P between the first jaw member 1 and the second jaw member 1a, the handle 9 is pushed down as indicated by the arrow _F1 in FIG. At that time, since the support member 6 and the first Jyo member 1 are fixed to the support column 2,
By pushing down the handle 9 as described above,
The second Jyo member 1a moves in the direction of arrow F, and the distance between it and the first Jyo member increases. During this time, the compression coil spring serving as the pressing means 7 is compressed between the second Jyo member 1a and the support member 6. At that time, if the handle 9 is pushed down beyond the line connecting the pivots 6a and 13, the handle 9 will be stably held in the depressed position under the pressing force of the pushing means 7 even if the handle 9 is released. Ru.

In any case, with the distance between the second Jyo member 1a and the first Jyo member 1 widened,
An article P can be inserted between these Joe members 1 and 1a. In that state, move the handle 9 to the
When returned to the initial position shown in the figure, the second Jyo member 1a is pressed back toward the first Jyo member 1 by the pressing means 7 in the direction of arrow _F2 ;
It stops when it hits article P. At this time, the pressing force of the pressing means 7 grips the article P between the first and second Jyo members 1 and 1a. Even if the article P is flexible and the thickness of the article P decreases due to gripping force or external stress, the pressing means 7 continues to exert a gripping force, so that it will not fall off from between the jaw members 1 and 1a. Note that by appropriately adjusting the distance between the first Jyo member 1 and the support member 6, it is also possible to grip a plurality of articles P in a stacked state.

By the way, in the clamp device of the present invention,
Since the first Jyo member 1 can be oriented in a desired direction around the support 2, the first Jyo member 1 and the second Jyo member 1a
can be directed not in the same direction, but in different directions, as shown in FIG. If the article P can be gripped in different directions in this way, there will be a large degree of freedom in the relative positions of the Jyo members 1 and 1a, and if the Jyo member is aligned in the axial direction of the support column as in the past, it will not be possible to grip the article P. Even if the object has a shape that is difficult to grasp, it may become possible to grasp it by orienting the object in a staggered manner as described above. In addition, even though the shape of the article P is conventional and can be grasped, since the jyo member is aligned in the axial direction of the column, the jyo member must be brought close to the article in order to grasp the article P. Even if it is difficult or impossible to bring the jyo member close to the article P due to interference from surrounding parts, etc., by orienting the jyo members 1 and 1a appropriately at different angles as described above, the surrounding parts can be moved closer to the article P. It is possible to avoid contact between parts and the like and the jaw members 1, 1a, and it may become possible to perform the intended work satisfactorily. This is a dramatic advantage over conventional ones. At that time, the first Jyo member 1
Since the support member 6 can be fixed at a desired position along the column 2, these members 1 and 6 can be fixed at the best position suitable for the work.

However, the first and second Jyo members 1, 1
When the article P is gripped with a facing in a staggered manner, the gripping force applies a rotational force to the article P as shown by arrow _F3 in FIG. 2, making gripping of the article P unstable. In the present invention, this problem is cleverly solved by attaching the contact member 4 to the support column 2. That is, by bringing the contact member 4 into contact with the surface S that is stationary with respect to the article P, the stationary surface S is prevented from moving due to the rotational force, in other words, the rotation By canceling out the forces, it is possible to stably hold the article P between the jaw members 1 and 1a. In that case, the contact member 4
can be fixed at a desired position along the column 2,
It can be fixed at a position corresponding to the position of the stationary surface S. Moreover, since the direction can be changed as desired, it can be oriented in a direction that offsets the rotational force with respect to the stationary surface S.

Furthermore, the clamp device of the present invention can be easily formed from mutually independent and detachable parts of various sizes and shapes. This clamp device has good workability because the operator can perform the gripping operation with one hand. Moreover, since each part is detachable, for example, the pressing means 7 can be replaced with one having a different pressing force, or the contact member 4 can be removed and used when unnecessary.

In the embodiment described above, the handle 9 is operated to pull the second Jyo member 1a toward the support member 6, but it may be configured to be pushed toward the support member 6. Furthermore, member 6
Consisting of a, 8, 9, 10, 11, 12, 13,
The opening/closing mechanism for the Jyo members 1, 1a is provided so that the compression coil spring can be maintained in the maximum compressed state even if the hand is removed from the handle 9, and the Jyo members 1, 1a can be easily opened and closed. Although this is preferable, it is not necessary if the force of the pressing means 7 is weak, and the opening/closing operation may be performed by directly moving the jaw member 1a by hand.

Furthermore, as shown by imaginary lines in FIG. 1, the first and second jaw members 1 and 1a can be provided with one or more separate jaw members 1s and 1as, respectively. In the illustrated embodiment, one such separate Jyo member 1s, 1as is provided symmetrically with respect to the first and second Jyo member members 1, 1a, respectively.

FIG. 3 shows another embodiment of the invention in side view. This embodiment includes a pair of jaw members 1, 1a and a pressing means 7 in the embodiments of FIGS. 1 and 2.
In addition, it has a second pair of jaw members 1b, 1c and pressing means 7a similar to these, the support member 6 and the handle 9 being common to both pairs of jaw members. 12a is a link member corresponding to 12, 11a is a slit corresponding to 11,
13a is a pivot tool corresponding to 13.

When the handle 9 is pushed down, the jyo member 1a is pulled down via the link member 12. At this time, the pivot member 10 can move within the slit 11a of the link member 12a, so that the jaw member 1c remains closed. Conversely, when the handle 9 is pushed up, the jyo member 1a does not move and only the jyo member 1c separates from the jyo member 1b. Thus, this embodiment allows a single clamping device to grip different articles. The contact member 4 may be used in common for both pairs of jaws depending on the direction of the rotational force to be canceled, or
A separate contact member may be provided for each pair of jaw members.

FIG. 4 shows a further embodiment of the invention in side view. In this embodiment, the first jaw member 1 and the support member 6 can be removably fixed at a desired position and in a desired orientation along the column 2 as in the previous embodiment, but the support member 6 is Pillar 2
It has a front part extending in a radial direction from the front part and a tail part 9a extending in the opposite direction. The guide means 2a has a second guide member 1a attached to its tip, and the other end passes through the front part of the support member 6 in parallel to the axial direction of the column 2, and is supported so as to be movable in the axial direction of the column 2. It is made of a rod-shaped member and is adapted to guide the second Jyo member 1a in a direction parallel to the axial direction of the support column 2 so as to be movable. Further, a compression coil spring serving as the pressing means 7 is detachably provided between the support member 6 and the second jaw member 1a, surrounding the guide means 2a. Furthermore, like the front part of the support member 6, the first Jyo member 1 is formed in a shape extending in the radial direction from the column 2, and is configured to grip an article between it and the second Jyo member 1a. being done.

In this embodiment, the handle 9 is disposed on the opposite side of the support member 6 from the second jaw member 1a, that is, on the upper surface side of the support member 6 in FIG. 4, facing the tail portion 9a. Link member 1
2 is connected at an angle to a handle 9 via a lever 8, and a fulcrum 10a corresponding to the pivot 10 in the previous embodiment is formed at this joint, facing the support member 6. There is.

One end of the rod-shaped member serving as the guide means 2a is hooked onto the link member 12 at the coupling tool 13b, and the second Jyo member 1a is attached to the other end, that is, the tip, as described above. Preferably, this attachment is such that the second jaw member 1a can pivot in the direction of arrows f ₁ and f ₂ in FIG. 4. For this purpose, in this embodiment, the tip of the rod-like member is formed into an enlarged conical shape as shown in the figure, and the second Jyo member 1a is pressed against the enlarged conical tip under the pressing force of the pressing means 7. I'm starting to let them do it. The second jaw member 1a can thus pivot depending on the shape of the article to be gripped.

To grasp the article, handle 9 and tail 9a may be grasped by hand or other suitable means may be used to push handle 9 down toward tail 9a. Then, the link member 12 pivots upward about the fulcrum 10a, and pulls up the guide means 2a together with the second jaw member 1a against the pressing force of the pressing means 7. In this state, when an article is put between the first Jyo member 1 and the second Jyo member 1a and the handle 9 is released, the second Jyo member 1a is pressed against the article by the pressing force of the pressing means 7. The object is gripped between the gripper and the first jaw member 1. Note that it is easy to maintain the handle 9 in a depressed state relative to the tail portion 9a for a desired period of time by appropriate means.

Note that, as in the previous embodiment, if the first Jyo member 1 and the second Jyo member 1a are not aligned in the axial direction of the support column 2 and grip the article in different directions, a rotational force will be applied to the article. , and the contact member 4 is the stationary surface S mentioned above (not shown in FIG. 4).
Similarly, this rotational force can be canceled out by bringing the rotor into contact with the rotor, and the same effect as in the previous embodiment is achieved. Moreover, this embodiment has the additional effect of being able to grip the article at a position far away from the support column 2. Note that in this embodiment as well, the contact member 4 is provided in a detachable manner.

Furthermore, in this embodiment as well, the opening/closing mechanism for the second jaw member 1a, which is composed of the members 8, 9, and 12, can be omitted, for example, when the pressing force of the pressing means 7 is not very large.

Although the present invention has been described above with reference to specific illustrated embodiments, the present invention is not limited to these embodiments. For example, although the illustrated embodiment uses a compression coil spring as the pushing means 7, other means such as pneumatic, magnetic, or electromagnetic devices may be used to apply a continuously adjustable force to the second jaw. It can also be provided between the member 1a and the support member 6.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to orient the first Jyo member and the second Jyo member in relatively different directions on the support, and to place the first JYO member and the second JYO member at a desired position along the support. A contact member that can be fixed in the direction of the article is provided, and when the article is subjected to rotational force by the jog member, the contact member comes into contact with a surface that is stationary relative to the article. The effect is that the object can be held stably at the best position depending on its shape or surrounding circumstances.

[Brief explanation of the drawing]

FIG. 1 is a side view of a clamping device according to an embodiment of the present invention, FIG. 2 is a perspective view showing the usage state of the clamping device of FIG. 1, and FIG. 3 is a side view of a clamping device according to another embodiment of the present invention. FIG. 4 is a side view of a clamp device according to still another embodiment of the present invention, and the same reference numerals in the figures indicate the same or corresponding parts. In the figure, 1 is a first Jyo member, 1a is a second Jyo member, 2 is a column, 2a is a guide means, 4
1 is a contact member, 6 is a support member, 7 and 7a are pressing means, 9 is a handle, 9a is a tail portion, and 12 is a link member.

Claims (1)

[Claims] 1. A post 2, a first jyo member 1 that can be fixed at a desired position and in a desired orientation along the post 2,
a second Jyo member 1a paired with the first Jyo member 1; a guide means 2a for movably guiding the second Jyo member 1a in the axial direction of the support column 2;
A support member 6 that can be fixed at a desired position and in a desired direction along the pillar 2 so as to face the second Jyo member 1a, and between this support member 6 and the second Jyo member 1a. a replaceable pressing means 7 disposed to support the second Jyo member 1a from the support member 6 and elastically press the second Jyo member 1a in a direction away from the support member 6; and the support column. 2, which can be fixed at a desired position and in a desired direction, and which presses the article P in a state where the first and second members 1 and 1a are oriented deviated from each other. In order to counter the rotational force exerted by these Jyo members 1 and 1a when the article A clamp device characterized by: 2. The clamp device according to claim 1, wherein the guide means 2a is constituted by a support column 2. 3. The clamp device according to claim 1, wherein the guide means 2a is a rod-shaped member supported by a support member 6 so as to be slidable in parallel to the axial direction of the support column 2. 4. The clamp device according to claim 1, wherein the pressing means 7 is a compression coil spring surrounding the support column 2. 5. The clamp device according to claim 3, wherein the pressing means 7 is a compression coil spring surrounding a rod-shaped member. 6. Claim 1, wherein the opposing member 4 is an arm extending radially from the support 2.
The clamp device according to any one of items 1 to 5. 7 a post 2, a first jyo member 1 that can be fixed at a desired position and in a desired orientation along the post 2;
a second Jyo member 1a paired with the first Jyo member 1; a guide means 2a for movably guiding the second Jyo member 1a in the axial direction of the support column 2;
A support member 6 that can be fixed at a desired position and in a desired direction along the pillar 2 so as to face the second Jyo member 1a, and between this support member 6 and the second Jyo member 1a. a replaceable pressing means 7 disposed to support the second Jyo member 1a from the support member 6 and elastically press the second Jyo member 1a in a direction away from the support member 6; A removable handle 9 is pivotally supported on the handle 9 at one end and the other end is pivoted on the second jyo member 1a, so that when the handle 9 is actuated, the second jyo member 1a 1
a link member 12 that can be slid along the pillar 2; and a removable contact member 4 that can be fixed at a desired position and in a desired orientation along the pillar 2.
4, in order to counter the rotational force exerted by the first and second jaw members 1, 1a when they press the article P in a state where the directions are shifted from each other. The clamping device is characterized in that the abutting member is provided in such a manner that it comes into contact with a surface S that is stationary with respect to the article P. 8 a strut 2, a first jyo member 1 that can be fixed at a desired position and in a desired orientation along the strut 2;
A second Jyo member 1a that is paired with the first Jyo member 1 can be fixed at a desired position and in a desired direction along the pillar 2 so as to face the second Jyo member 1a. A support member 6 has a front part extending in a radial direction from the support column 2 and a tail part 9a extending in the opposite direction. It consists of a rod-shaped member that penetrates the front part and is supported movably in a direction parallel to the axial direction of the pillar 2, and guides the second Jyo member 1a so as to be movable in the direction parallel to the axial direction of the pillar 2. A guide means 2a is disposed between the support member 6 and the second Jyo member 1a, and supports the second Jyo member 1a from the support member 6, and also moves the second Jyo member 1a to the support member. 6, a replaceable pressing means 7 for elastically pressing in a direction away from the rod-shaped member, a removable handle 9 disposed along the support column 2 and opposite to the tail portion 9a, and one end of which is attached to the other end of the rod-shaped member. The other end is connected to the handle 9, and the support member 6 is connected to the handle 9.
The handle 9 forms a fulcrum 10a facing the handle 9.
a link member 12 capable of moving the second jaw member 1a in a direction parallel to the axial direction of the strut 2 when the second jaw member 1a is pivoted about the fulcrum 10a with respect to the tail portion 9a; When the first and second mounting members 1 and 1a are pressing the article P in a state where the orientations of the first and second mounting members 1 and 1a are shifted from each other. , these Jyo members 1, 1
The clamping device is characterized in that the abutting member is provided to counteract the rotational force exerted by the article P and comes into contact with a surface S that is stationary with respect to the article P. 9. The clamp device according to claim 8, wherein the second jaw member 1a is pivotally attached to the tip of the guide means 2a made of a rod-like member. 10. The clamp device according to claim 8, wherein the link member 12 is detachable together with the handle 9.